diff options
-rw-r--r-- | arch/m68k/Kconfig | 456 | ||||
-rw-r--r-- | arch/m68k/Kconfig.debug | 34 | ||||
-rw-r--r-- | arch/m68k/Kconfig.mmu | 417 | ||||
-rw-r--r-- | arch/m68k/Kconfig.nommu (renamed from arch/m68knommu/Kconfig) | 94 | ||||
-rw-r--r-- | arch/m68k/Makefile | 122 | ||||
-rw-r--r-- | arch/m68k/Makefile_mm | 121 | ||||
-rw-r--r-- | arch/m68k/Makefile_no (renamed from arch/m68knommu/Makefile) | 16 | ||||
-rw-r--r-- | arch/m68k/configs/m5208evb_defconfig (renamed from arch/m68knommu/configs/m5208evb_defconfig) | 2 | ||||
-rw-r--r-- | arch/m68k/configs/m5249evb_defconfig (renamed from arch/m68knommu/configs/m5249evb_defconfig) | 2 | ||||
-rw-r--r-- | arch/m68k/configs/m5272c3_defconfig (renamed from arch/m68knommu/configs/m5272c3_defconfig) | 2 | ||||
-rw-r--r-- | arch/m68k/configs/m5275evb_defconfig (renamed from arch/m68knommu/configs/m5275evb_defconfig) | 2 | ||||
-rw-r--r-- | arch/m68k/configs/m5307c3_defconfig (renamed from arch/m68knommu/configs/m5307c3_defconfig) | 2 | ||||
-rw-r--r-- | arch/m68k/configs/m5407c3_defconfig (renamed from arch/m68knommu/configs/m5407c3_defconfig) | 2 | ||||
-rw-r--r-- | arch/m68k/kernel/Makefile | 18 | ||||
-rw-r--r-- | arch/m68k/kernel/Makefile_mm | 17 | ||||
-rw-r--r-- | arch/m68k/kernel/Makefile_no (renamed from arch/m68knommu/kernel/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/asm-offsets.c | 101 | ||||
-rw-r--r-- | arch/m68k/kernel/asm-offsets_mm.c | 100 | ||||
-rw-r--r-- | arch/m68k/kernel/asm-offsets_no.c (renamed from arch/m68knommu/kernel/asm-offsets.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/dma.c | 135 | ||||
-rw-r--r-- | arch/m68k/kernel/dma_mm.c | 130 | ||||
-rw-r--r-- | arch/m68k/kernel/dma_no.c (renamed from arch/m68knommu/kernel/dma.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/entry.S | 756 | ||||
-rw-r--r-- | arch/m68k/kernel/entry_mm.S | 753 | ||||
-rw-r--r-- | arch/m68k/kernel/entry_no.S (renamed from arch/m68knommu/kernel/entry.S) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/init_task.c (renamed from arch/m68knommu/kernel/init_task.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/irq.c (renamed from arch/m68knommu/kernel/irq.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/m68k_ksyms.c | 21 | ||||
-rw-r--r-- | arch/m68k/kernel/m68k_ksyms_mm.c | 16 | ||||
-rw-r--r-- | arch/m68k/kernel/m68k_ksyms_no.c (renamed from arch/m68knommu/kernel/m68k_ksyms.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/module.c | 156 | ||||
-rw-r--r-- | arch/m68k/kernel/module_mm.c | 155 | ||||
-rw-r--r-- | arch/m68k/kernel/module_no.c (renamed from arch/m68knommu/kernel/module.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/process.c | 355 | ||||
-rw-r--r-- | arch/m68k/kernel/process_mm.c | 354 | ||||
-rw-r--r-- | arch/m68k/kernel/process_no.c (renamed from arch/m68knommu/kernel/process.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/ptrace.c | 282 | ||||
-rw-r--r-- | arch/m68k/kernel/ptrace_mm.c | 277 | ||||
-rw-r--r-- | arch/m68k/kernel/ptrace_no.c (renamed from arch/m68knommu/kernel/ptrace.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/setup.c | 534 | ||||
-rw-r--r-- | arch/m68k/kernel/setup_mm.c | 533 | ||||
-rw-r--r-- | arch/m68k/kernel/setup_no.c (renamed from arch/m68knommu/kernel/setup.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/signal.c | 1018 | ||||
-rw-r--r-- | arch/m68k/kernel/signal_mm.c | 1017 | ||||
-rw-r--r-- | arch/m68k/kernel/signal_no.c (renamed from arch/m68knommu/kernel/signal.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/sys_m68k.c | 551 | ||||
-rw-r--r-- | arch/m68k/kernel/sys_m68k_mm.c | 546 | ||||
-rw-r--r-- | arch/m68k/kernel/sys_m68k_no.c (renamed from arch/m68knommu/kernel/sys_m68k.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/syscalltable.S (renamed from arch/m68knommu/kernel/syscalltable.S) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/time.c | 119 | ||||
-rw-r--r-- | arch/m68k/kernel/time_mm.c | 114 | ||||
-rw-r--r-- | arch/m68k/kernel/time_no.c (renamed from arch/m68knommu/kernel/time.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/traps.c | 1208 | ||||
-rw-r--r-- | arch/m68k/kernel/traps_mm.c | 1207 | ||||
-rw-r--r-- | arch/m68k/kernel/traps_no.c (renamed from arch/m68knommu/kernel/traps.c) | 0 | ||||
-rw-r--r-- | arch/m68k/kernel/vmlinux.lds.S | 11 | ||||
-rw-r--r-- | arch/m68k/kernel/vmlinux.lds_mm.S | 10 | ||||
-rw-r--r-- | arch/m68k/kernel/vmlinux.lds_no.S (renamed from arch/m68knommu/kernel/vmlinux.lds.S) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/Makefile | 11 | ||||
-rw-r--r-- | arch/m68k/lib/Makefile_mm | 6 | ||||
-rw-r--r-- | arch/m68k/lib/Makefile_no (renamed from arch/m68knommu/lib/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/checksum.c | 430 | ||||
-rw-r--r-- | arch/m68k/lib/checksum_mm.c | 425 | ||||
-rw-r--r-- | arch/m68k/lib/checksum_no.c (renamed from arch/m68knommu/lib/checksum.c) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/delay.c (renamed from arch/m68knommu/lib/delay.c) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/divsi3.S (renamed from arch/m68knommu/lib/divsi3.S) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/memcpy.c (renamed from arch/m68knommu/lib/memcpy.c) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/memmove.c (renamed from arch/m68knommu/lib/memmove.c) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/memset.c (renamed from arch/m68knommu/lib/memset.c) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/modsi3.S (renamed from arch/m68knommu/lib/modsi3.S) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/muldi3.c | 68 | ||||
-rw-r--r-- | arch/m68k/lib/muldi3_mm.c (renamed from arch/m68knommu/lib/ashrdi3.c) | 48 | ||||
-rw-r--r-- | arch/m68k/lib/muldi3_no.c (renamed from arch/m68knommu/lib/muldi3.c) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/mulsi3.S (renamed from arch/m68knommu/lib/mulsi3.S) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/udivsi3.S (renamed from arch/m68knommu/lib/udivsi3.S) | 0 | ||||
-rw-r--r-- | arch/m68k/lib/umodsi3.S (renamed from arch/m68knommu/lib/umodsi3.S) | 0 | ||||
-rw-r--r-- | arch/m68k/mm/Makefile | 13 | ||||
-rw-r--r-- | arch/m68k/mm/Makefile_mm | 8 | ||||
-rw-r--r-- | arch/m68k/mm/Makefile_no (renamed from arch/m68knommu/mm/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/mm/init.c | 153 | ||||
-rw-r--r-- | arch/m68k/mm/init_mm.c | 150 | ||||
-rw-r--r-- | arch/m68k/mm/init_no.c (renamed from arch/m68knommu/mm/init.c) | 0 | ||||
-rw-r--r-- | arch/m68k/mm/kmap.c | 368 | ||||
-rw-r--r-- | arch/m68k/mm/kmap_mm.c | 367 | ||||
-rw-r--r-- | arch/m68k/mm/kmap_no.c (renamed from arch/m68knommu/mm/kmap.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5206/Makefile (renamed from arch/m68knommu/platform/5206/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5206/config.c (renamed from arch/m68knommu/platform/5206/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5206/gpio.c (renamed from arch/m68knommu/platform/5206/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5206e/Makefile (renamed from arch/m68knommu/platform/5206e/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5206e/config.c (renamed from arch/m68knommu/platform/5206e/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5206e/gpio.c (renamed from arch/m68knommu/platform/5206e/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/520x/Makefile (renamed from arch/m68knommu/platform/520x/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/520x/config.c (renamed from arch/m68knommu/platform/520x/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/520x/gpio.c (renamed from arch/m68knommu/platform/520x/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/523x/Makefile (renamed from arch/m68knommu/platform/523x/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/523x/config.c (renamed from arch/m68knommu/platform/523x/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/523x/gpio.c (renamed from arch/m68knommu/platform/523x/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5249/Makefile (renamed from arch/m68knommu/platform/5249/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5249/config.c (renamed from arch/m68knommu/platform/5249/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5249/gpio.c (renamed from arch/m68knommu/platform/5249/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5249/intc2.c (renamed from arch/m68knommu/platform/5249/intc2.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5272/Makefile (renamed from arch/m68knommu/platform/5272/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5272/config.c (renamed from arch/m68knommu/platform/5272/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5272/gpio.c (renamed from arch/m68knommu/platform/5272/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5272/intc.c (renamed from arch/m68knommu/platform/5272/intc.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/527x/Makefile (renamed from arch/m68knommu/platform/527x/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/527x/config.c (renamed from arch/m68knommu/platform/527x/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/527x/gpio.c (renamed from arch/m68knommu/platform/527x/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/528x/Makefile (renamed from arch/m68knommu/platform/528x/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/528x/config.c (renamed from arch/m68knommu/platform/528x/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/528x/gpio.c (renamed from arch/m68knommu/platform/528x/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5307/Makefile (renamed from arch/m68knommu/platform/5307/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5307/config.c (renamed from arch/m68knommu/platform/5307/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5307/gpio.c (renamed from arch/m68knommu/platform/5307/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5307/nettel.c (renamed from arch/m68knommu/platform/5307/nettel.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/532x/Makefile (renamed from arch/m68knommu/platform/532x/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/532x/config.c (renamed from arch/m68knommu/platform/532x/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/532x/gpio.c (renamed from arch/m68knommu/platform/532x/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5407/Makefile (renamed from arch/m68knommu/platform/5407/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5407/config.c (renamed from arch/m68knommu/platform/5407/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/5407/gpio.c (renamed from arch/m68knommu/platform/5407/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/54xx/Makefile (renamed from arch/m68knommu/platform/54xx/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/54xx/config.c (renamed from arch/m68knommu/platform/54xx/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/54xx/firebee.c (renamed from arch/m68knommu/platform/54xx/firebee.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/Makefile (renamed from arch/m68knommu/platform/68328/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/bootlogo.h (renamed from arch/m68knommu/platform/68328/bootlogo.h) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/bootlogo.pl (renamed from arch/m68knommu/platform/68328/bootlogo.pl) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/config.c (renamed from arch/m68knommu/platform/68328/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/entry.S (renamed from arch/m68knommu/platform/68328/entry.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-de2.S (renamed from arch/m68knommu/platform/68328/head-de2.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-pilot.S (renamed from arch/m68knommu/platform/68328/head-pilot.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-ram.S (renamed from arch/m68knommu/platform/68328/head-ram.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/head-rom.S (renamed from arch/m68knommu/platform/68328/head-rom.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/ints.c (renamed from arch/m68knommu/platform/68328/ints.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/romvec.S (renamed from arch/m68knommu/platform/68328/romvec.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68328/timers.c (renamed from arch/m68knommu/platform/68328/timers.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/Makefile (renamed from arch/m68knommu/platform/68360/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/commproc.c (renamed from arch/m68knommu/platform/68360/commproc.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/config.c (renamed from arch/m68knommu/platform/68360/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/entry.S (renamed from arch/m68knommu/platform/68360/entry.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/head-ram.S (renamed from arch/m68knommu/platform/68360/head-ram.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/head-rom.S (renamed from arch/m68knommu/platform/68360/head-rom.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68360/ints.c (renamed from arch/m68knommu/platform/68360/ints.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68EZ328/Makefile (renamed from arch/m68knommu/platform/68EZ328/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68EZ328/bootlogo.h (renamed from arch/m68knommu/platform/68EZ328/bootlogo.h) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68EZ328/config.c (renamed from arch/m68knommu/platform/68EZ328/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68VZ328/Makefile (renamed from arch/m68knommu/platform/68VZ328/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/68VZ328/config.c (renamed from arch/m68knommu/platform/68VZ328/config.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/Makefile (renamed from arch/m68knommu/platform/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/Makefile (renamed from arch/m68knommu/platform/coldfire/Makefile) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/cache.c (renamed from arch/m68knommu/platform/coldfire/cache.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/clk.c (renamed from arch/m68knommu/platform/coldfire/clk.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/dma.c (renamed from arch/m68knommu/platform/coldfire/dma.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/dma_timer.c (renamed from arch/m68knommu/platform/coldfire/dma_timer.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/entry.S (renamed from arch/m68knommu/platform/coldfire/entry.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/gpio.c (renamed from arch/m68knommu/platform/coldfire/gpio.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/head.S (renamed from arch/m68knommu/platform/coldfire/head.S) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/intc-2.c (renamed from arch/m68knommu/platform/coldfire/intc-2.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/intc-simr.c (renamed from arch/m68knommu/platform/coldfire/intc-simr.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/intc.c (renamed from arch/m68knommu/platform/coldfire/intc.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/pinmux.c (renamed from arch/m68knommu/platform/coldfire/pinmux.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/pit.c (renamed from arch/m68knommu/platform/coldfire/pit.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/sltimers.c (renamed from arch/m68knommu/platform/coldfire/sltimers.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/timers.c (renamed from arch/m68knommu/platform/coldfire/timers.c) | 0 | ||||
-rw-r--r-- | arch/m68k/platform/coldfire/vectors.c (renamed from arch/m68knommu/platform/coldfire/vectors.c) | 0 | ||||
-rw-r--r-- | arch/m68knommu/Kconfig.debug | 35 | ||||
-rw-r--r-- | arch/m68knommu/defconfig | 74 | ||||
-rw-r--r-- | arch/m68knommu/kernel/.gitignore | 1 | ||||
-rw-r--r-- | arch/m68knommu/lib/ashldi3.c | 62 | ||||
-rw-r--r-- | arch/m68knommu/lib/lshrdi3.c | 62 |
170 files changed, 6916 insertions, 7131 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 525174d41679..6e056d3c5d01 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig | |||
@@ -1,13 +1,11 @@ | |||
1 | config M68K | 1 | config M68K |
2 | bool | 2 | bool |
3 | default y | 3 | default y |
4 | select HAVE_AOUT | ||
5 | select HAVE_IDE | 4 | select HAVE_IDE |
6 | select GENERIC_ATOMIC64 | 5 | select HAVE_AOUT if MMU |
7 | 6 | select GENERIC_ATOMIC64 if MMU | |
8 | config MMU | 7 | select HAVE_GENERIC_HARDIRQS if !MMU |
9 | bool | 8 | select GENERIC_HARDIRQS_NO_DEPRECATED if !MMU |
10 | default y | ||
11 | 9 | ||
12 | config RWSEM_GENERIC_SPINLOCK | 10 | config RWSEM_GENERIC_SPINLOCK |
13 | bool | 11 | bool |
@@ -34,457 +32,67 @@ config TIME_LOW_RES | |||
34 | bool | 32 | bool |
35 | default y | 33 | default y |
36 | 34 | ||
37 | config GENERIC_IOMAP | ||
38 | bool | ||
39 | default y | ||
40 | |||
41 | config ARCH_MAY_HAVE_PC_FDC | ||
42 | bool | ||
43 | depends on BROKEN && (Q40 || SUN3X) | ||
44 | default y | ||
45 | |||
46 | config NO_IOPORT | 35 | config NO_IOPORT |
47 | def_bool y | 36 | def_bool y |
48 | 37 | ||
49 | config NO_DMA | 38 | config NO_DMA |
50 | def_bool SUN3 | 39 | def_bool (MMU && SUN3) || (!MMU && !COLDFIRE) |
51 | 40 | ||
41 | config ZONE_DMA | ||
42 | bool | ||
43 | default y | ||
52 | config HZ | 44 | config HZ |
53 | int | 45 | int |
46 | default 1000 if CLEOPATRA | ||
54 | default 100 | 47 | default 100 |
55 | 48 | ||
56 | config ARCH_USES_GETTIMEOFFSET | ||
57 | def_bool y | ||
58 | |||
59 | source "init/Kconfig" | 49 | source "init/Kconfig" |
60 | 50 | ||
61 | source "kernel/Kconfig.freezer" | 51 | source "kernel/Kconfig.freezer" |
62 | 52 | ||
63 | menu "Platform dependent setup" | 53 | config MMU |
64 | 54 | bool "MMU-based Paged Memory Management Support" | |
65 | config EISA | ||
66 | bool | ||
67 | ---help--- | ||
68 | The Extended Industry Standard Architecture (EISA) bus was | ||
69 | developed as an open alternative to the IBM MicroChannel bus. | ||
70 | |||
71 | The EISA bus provided some of the features of the IBM MicroChannel | ||
72 | bus while maintaining backward compatibility with cards made for | ||
73 | the older ISA bus. The EISA bus saw limited use between 1988 and | ||
74 | 1995 when it was made obsolete by the PCI bus. | ||
75 | |||
76 | Say Y here if you are building a kernel for an EISA-based machine. | ||
77 | |||
78 | Otherwise, say N. | ||
79 | |||
80 | config MCA | ||
81 | bool | ||
82 | help | ||
83 | MicroChannel Architecture is found in some IBM PS/2 machines and | ||
84 | laptops. It is a bus system similar to PCI or ISA. See | ||
85 | <file:Documentation/mca.txt> (and especially the web page given | ||
86 | there) before attempting to build an MCA bus kernel. | ||
87 | |||
88 | config PCMCIA | ||
89 | tristate | ||
90 | ---help--- | ||
91 | Say Y here if you want to attach PCMCIA- or PC-cards to your Linux | ||
92 | computer. These are credit-card size devices such as network cards, | ||
93 | modems or hard drives often used with laptops computers. There are | ||
94 | actually two varieties of these cards: the older 16 bit PCMCIA cards | ||
95 | and the newer 32 bit CardBus cards. If you want to use CardBus | ||
96 | cards, you need to say Y here and also to "CardBus support" below. | ||
97 | |||
98 | To use your PC-cards, you will need supporting software from David | ||
99 | Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> | ||
100 | for location). Please also read the PCMCIA-HOWTO, available from | ||
101 | <http://www.tldp.org/docs.html#howto>. | ||
102 | |||
103 | To compile this driver as modules, choose M here: the | ||
104 | modules will be called pcmcia_core and ds. | ||
105 | |||
106 | config AMIGA | ||
107 | bool "Amiga support" | ||
108 | select MMU_MOTOROLA if MMU | ||
109 | help | ||
110 | This option enables support for the Amiga series of computers. If | ||
111 | you plan to use this kernel on an Amiga, say Y here and browse the | ||
112 | material available in <file:Documentation/m68k>; otherwise say N. | ||
113 | |||
114 | config ATARI | ||
115 | bool "Atari support" | ||
116 | select MMU_MOTOROLA if MMU | ||
117 | help | ||
118 | This option enables support for the 68000-based Atari series of | ||
119 | computers (including the TT, Falcon and Medusa). If you plan to use | ||
120 | this kernel on an Atari, say Y here and browse the material | ||
121 | available in <file:Documentation/m68k>; otherwise say N. | ||
122 | |||
123 | config MAC | ||
124 | bool "Macintosh support" | ||
125 | select MMU_MOTOROLA if MMU | ||
126 | help | ||
127 | This option enables support for the Apple Macintosh series of | ||
128 | computers (yes, there is experimental support now, at least for part | ||
129 | of the series). | ||
130 | |||
131 | Say N unless you're willing to code the remaining necessary support. | ||
132 | ;) | ||
133 | |||
134 | config NUBUS | ||
135 | bool | ||
136 | depends on MAC | ||
137 | default y | ||
138 | |||
139 | config M68K_L2_CACHE | ||
140 | bool | ||
141 | depends on MAC | ||
142 | default y | ||
143 | |||
144 | config APOLLO | ||
145 | bool "Apollo support" | ||
146 | select MMU_MOTOROLA if MMU | ||
147 | help | ||
148 | Say Y here if you want to run Linux on an MC680x0-based Apollo | ||
149 | Domain workstation such as the DN3500. | ||
150 | |||
151 | config VME | ||
152 | bool "VME (Motorola and BVM) support" | ||
153 | select MMU_MOTOROLA if MMU | ||
154 | help | ||
155 | Say Y here if you want to build a kernel for a 680x0 based VME | ||
156 | board. Boards currently supported include Motorola boards MVME147, | ||
157 | MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and | ||
158 | BVME6000 boards from BVM Ltd are also supported. | ||
159 | |||
160 | config MVME147 | ||
161 | bool "MVME147 support" | ||
162 | depends on VME | ||
163 | help | ||
164 | Say Y to include support for early Motorola VME boards. This will | ||
165 | build a kernel which can run on MVME147 single-board computers. If | ||
166 | you select this option you will have to select the appropriate | ||
167 | drivers for SCSI, Ethernet and serial ports later on. | ||
168 | |||
169 | config MVME16x | ||
170 | bool "MVME162, 166 and 167 support" | ||
171 | depends on VME | ||
172 | help | ||
173 | Say Y to include support for Motorola VME boards. This will build a | ||
174 | kernel which can run on MVME162, MVME166, MVME167, MVME172, and | ||
175 | MVME177 boards. If you select this option you will have to select | ||
176 | the appropriate drivers for SCSI, Ethernet and serial ports later | ||
177 | on. | ||
178 | |||
179 | config BVME6000 | ||
180 | bool "BVME4000 and BVME6000 support" | ||
181 | depends on VME | ||
182 | help | ||
183 | Say Y to include support for VME boards from BVM Ltd. This will | ||
184 | build a kernel which can run on BVME4000 and BVME6000 boards. If | ||
185 | you select this option you will have to select the appropriate | ||
186 | drivers for SCSI, Ethernet and serial ports later on. | ||
187 | |||
188 | config HP300 | ||
189 | bool "HP9000/300 and HP9000/400 support" | ||
190 | select MMU_MOTOROLA if MMU | ||
191 | help | ||
192 | This option enables support for the HP9000/300 and HP9000/400 series | ||
193 | of workstations. Support for these machines is still somewhat | ||
194 | experimental. If you plan to try to use the kernel on such a machine | ||
195 | say Y here. | ||
196 | Everybody else says N. | ||
197 | |||
198 | config DIO | ||
199 | bool "DIO bus support" | ||
200 | depends on HP300 | ||
201 | default y | 55 | default y |
202 | help | 56 | help |
203 | Say Y here to enable support for the "DIO" expansion bus used in | 57 | Select if you want MMU-based virtualised addressing space |
204 | HP300 machines. If you are using such a system you almost certainly | 58 | support by paged memory management. If unsure, say 'Y'. |
205 | want this. | ||
206 | |||
207 | config SUN3X | ||
208 | bool "Sun3x support" | ||
209 | select MMU_MOTOROLA if MMU | ||
210 | select M68030 | ||
211 | help | ||
212 | This option enables support for the Sun 3x series of workstations. | ||
213 | Be warned that this support is very experimental. | ||
214 | Note that Sun 3x kernels are not compatible with Sun 3 hardware. | ||
215 | General Linux information on the Sun 3x series (now discontinued) | ||
216 | is at <http://www.angelfire.com/ca2/tech68k/sun3.html>. | ||
217 | |||
218 | If you don't want to compile a kernel for a Sun 3x, say N. | ||
219 | |||
220 | config Q40 | ||
221 | bool "Q40/Q60 support" | ||
222 | select MMU_MOTOROLA if MMU | ||
223 | help | ||
224 | The Q40 is a Motorola 68040-based successor to the Sinclair QL | ||
225 | manufactured in Germany. There is an official Q40 home page at | ||
226 | <http://www.q40.de/>. This option enables support for the Q40 and | ||
227 | Q60. Select your CPU below. For 68LC060 don't forget to enable FPU | ||
228 | emulation. | ||
229 | |||
230 | config SUN3 | ||
231 | bool "Sun3 support" | ||
232 | depends on !MMU_MOTOROLA | ||
233 | select MMU_SUN3 if MMU | ||
234 | select M68020 | ||
235 | help | ||
236 | This option enables support for the Sun 3 series of workstations | ||
237 | (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires | ||
238 | that all other hardware types must be disabled, as Sun 3 kernels | ||
239 | are incompatible with all other m68k targets (including Sun 3x!). | ||
240 | |||
241 | If you don't want to compile a kernel exclusively for a Sun 3, say N. | ||
242 | |||
243 | config NATFEAT | ||
244 | bool "ARAnyM emulator support" | ||
245 | depends on ATARI | ||
246 | help | ||
247 | This option enables support for ARAnyM native features, such as | ||
248 | access to a disk image as /dev/hda. | ||
249 | |||
250 | config NFBLOCK | ||
251 | tristate "NatFeat block device support" | ||
252 | depends on BLOCK && NATFEAT | ||
253 | help | ||
254 | Say Y to include support for the ARAnyM NatFeat block device | ||
255 | which allows direct access to the hard drives without using | ||
256 | the hardware emulation. | ||
257 | |||
258 | config NFCON | ||
259 | tristate "NatFeat console driver" | ||
260 | depends on NATFEAT | ||
261 | help | ||
262 | Say Y to include support for the ARAnyM NatFeat console driver | ||
263 | which allows the console output to be redirected to the stderr | ||
264 | output of ARAnyM. | ||
265 | |||
266 | config NFETH | ||
267 | tristate "NatFeat Ethernet support" | ||
268 | depends on NET_ETHERNET && NATFEAT | ||
269 | help | ||
270 | Say Y to include support for the ARAnyM NatFeat network device | ||
271 | which will emulate a regular ethernet device while presenting an | ||
272 | ethertap device to the host system. | ||
273 | |||
274 | comment "Processor type" | ||
275 | |||
276 | config M68020 | ||
277 | bool "68020 support" | ||
278 | help | ||
279 | If you anticipate running this kernel on a computer with a MC68020 | ||
280 | processor, say Y. Otherwise, say N. Note that the 68020 requires a | ||
281 | 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the | ||
282 | Sun 3, which provides its own version. | ||
283 | |||
284 | config M68030 | ||
285 | bool "68030 support" | ||
286 | depends on !MMU_SUN3 | ||
287 | help | ||
288 | If you anticipate running this kernel on a computer with a MC68030 | ||
289 | processor, say Y. Otherwise, say N. Note that a MC68EC030 will not | ||
290 | work, as it does not include an MMU (Memory Management Unit). | ||
291 | |||
292 | config M68040 | ||
293 | bool "68040 support" | ||
294 | depends on !MMU_SUN3 | ||
295 | help | ||
296 | If you anticipate running this kernel on a computer with a MC68LC040 | ||
297 | or MC68040 processor, say Y. Otherwise, say N. Note that an | ||
298 | MC68EC040 will not work, as it does not include an MMU (Memory | ||
299 | Management Unit). | ||
300 | |||
301 | config M68060 | ||
302 | bool "68060 support" | ||
303 | depends on !MMU_SUN3 | ||
304 | help | ||
305 | If you anticipate running this kernel on a computer with a MC68060 | ||
306 | processor, say Y. Otherwise, say N. | ||
307 | |||
308 | config MMU_MOTOROLA | ||
309 | bool | ||
310 | |||
311 | config MMU_SUN3 | ||
312 | bool | ||
313 | depends on MMU && !MMU_MOTOROLA | ||
314 | |||
315 | config M68KFPU_EMU | ||
316 | bool "Math emulation support (EXPERIMENTAL)" | ||
317 | depends on EXPERIMENTAL | ||
318 | help | ||
319 | At some point in the future, this will cause floating-point math | ||
320 | instructions to be emulated by the kernel on machines that lack a | ||
321 | floating-point math coprocessor. Thrill-seekers and chronically | ||
322 | sleep-deprived psychotic hacker types can say Y now, everyone else | ||
323 | should probably wait a while. | ||
324 | |||
325 | config M68KFPU_EMU_EXTRAPREC | ||
326 | bool "Math emulation extra precision" | ||
327 | depends on M68KFPU_EMU | ||
328 | help | ||
329 | The fpu uses normally a few bit more during calculations for | ||
330 | correct rounding, the emulator can (often) do the same but this | ||
331 | extra calculation can cost quite some time, so you can disable | ||
332 | it here. The emulator will then "only" calculate with a 64 bit | ||
333 | mantissa and round slightly incorrect, what is more than enough | ||
334 | for normal usage. | ||
335 | |||
336 | config M68KFPU_EMU_ONLY | ||
337 | bool "Math emulation only kernel" | ||
338 | depends on M68KFPU_EMU | ||
339 | help | ||
340 | This option prevents any floating-point instructions from being | ||
341 | compiled into the kernel, thereby the kernel doesn't save any | ||
342 | floating point context anymore during task switches, so this | ||
343 | kernel will only be usable on machines without a floating-point | ||
344 | math coprocessor. This makes the kernel a bit faster as no tests | ||
345 | needs to be executed whether a floating-point instruction in the | ||
346 | kernel should be executed or not. | ||
347 | |||
348 | config ADVANCED | ||
349 | bool "Advanced configuration options" | ||
350 | ---help--- | ||
351 | This gives you access to some advanced options for the CPU. The | ||
352 | defaults should be fine for most users, but these options may make | ||
353 | it possible for you to improve performance somewhat if you know what | ||
354 | you are doing. | ||
355 | |||
356 | Note that the answer to this question won't directly affect the | ||
357 | kernel: saying N will just cause the configurator to skip all | ||
358 | the questions about these options. | ||
359 | 59 | ||
360 | Most users should say N to this question. | 60 | menu "Platform dependent setup" |
361 | |||
362 | config RMW_INSNS | ||
363 | bool "Use read-modify-write instructions" | ||
364 | depends on ADVANCED | ||
365 | ---help--- | ||
366 | This allows to use certain instructions that work with indivisible | ||
367 | read-modify-write bus cycles. While this is faster than the | ||
368 | workaround of disabling interrupts, it can conflict with DMA | ||
369 | ( = direct memory access) on many Amiga systems, and it is also said | ||
370 | to destabilize other machines. It is very likely that this will | ||
371 | cause serious problems on any Amiga or Atari Medusa if set. The only | ||
372 | configuration where it should work are 68030-based Ataris, where it | ||
373 | apparently improves performance. But you've been warned! Unless you | ||
374 | really know what you are doing, say N. Try Y only if you're quite | ||
375 | adventurous. | ||
376 | |||
377 | config SINGLE_MEMORY_CHUNK | ||
378 | bool "Use one physical chunk of memory only" if ADVANCED && !SUN3 | ||
379 | default y if SUN3 | ||
380 | select NEED_MULTIPLE_NODES | ||
381 | help | ||
382 | Ignore all but the first contiguous chunk of physical memory for VM | ||
383 | purposes. This will save a few bytes kernel size and may speed up | ||
384 | some operations. Say N if not sure. | ||
385 | 61 | ||
386 | config 060_WRITETHROUGH | 62 | if MMU |
387 | bool "Use write-through caching for 68060 supervisor accesses" | 63 | source arch/m68k/Kconfig.mmu |
388 | depends on ADVANCED && M68060 | 64 | endif |
389 | ---help--- | 65 | if !MMU |
390 | The 68060 generally uses copyback caching of recently accessed data. | 66 | source arch/m68k/Kconfig.nommu |
391 | Copyback caching means that memory writes will be held in an on-chip | 67 | endif |
392 | cache and only written back to memory some time later. Saying Y | ||
393 | here will force supervisor (kernel) accesses to use writethrough | ||
394 | caching. Writethrough caching means that data is written to memory | ||
395 | straight away, so that cache and memory data always agree. | ||
396 | Writethrough caching is less efficient, but is needed for some | ||
397 | drivers on 68060 based systems where the 68060 bus snooping signal | ||
398 | is hardwired on. The 53c710 SCSI driver is known to suffer from | ||
399 | this problem. | ||
400 | |||
401 | config ARCH_DISCONTIGMEM_ENABLE | ||
402 | def_bool !SINGLE_MEMORY_CHUNK | ||
403 | |||
404 | config NODES_SHIFT | ||
405 | int | ||
406 | default "3" | ||
407 | depends on !SINGLE_MEMORY_CHUNK | ||
408 | 68 | ||
409 | source "mm/Kconfig" | 69 | source "mm/Kconfig" |
410 | 70 | ||
411 | endmenu | 71 | endmenu |
412 | 72 | ||
413 | menu "General setup" | 73 | menu "Executable file formats" |
414 | 74 | ||
415 | source "fs/Kconfig.binfmt" | 75 | source "fs/Kconfig.binfmt" |
416 | 76 | ||
417 | config ZORRO | 77 | endmenu |
418 | bool "Amiga Zorro (AutoConfig) bus support" | ||
419 | depends on AMIGA | ||
420 | help | ||
421 | This enables support for the Zorro bus in the Amiga. If you have | ||
422 | expansion cards in your Amiga that conform to the Amiga | ||
423 | AutoConfig(tm) specification, say Y, otherwise N. Note that even | ||
424 | expansion cards that do not fit in the Zorro slots but fit in e.g. | ||
425 | the CPU slot may fall in this category, so you have to say Y to let | ||
426 | Linux use these. | ||
427 | |||
428 | config AMIGA_PCMCIA | ||
429 | bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)" | ||
430 | depends on AMIGA && EXPERIMENTAL | ||
431 | help | ||
432 | Include support in the kernel for pcmcia on Amiga 1200 and Amiga | ||
433 | 600. If you intend to use pcmcia cards say Y; otherwise say N. | ||
434 | |||
435 | config STRAM_PROC | ||
436 | bool "ST-RAM statistics in /proc" | ||
437 | depends on ATARI | ||
438 | help | ||
439 | Say Y here to report ST-RAM usage statistics in /proc/stram. | ||
440 | |||
441 | config HEARTBEAT | ||
442 | bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40 | ||
443 | default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300 | ||
444 | help | ||
445 | Use the power-on LED on your machine as a load meter. The exact | ||
446 | behavior is platform-dependent, but normally the flash frequency is | ||
447 | a hyperbolic function of the 5-minute load average. | ||
448 | |||
449 | # We have a dedicated heartbeat LED. :-) | ||
450 | config PROC_HARDWARE | ||
451 | bool "/proc/hardware support" | ||
452 | help | ||
453 | Say Y here to support the /proc/hardware file, which gives you | ||
454 | access to information about the machine you're running on, | ||
455 | including the model, CPU, MMU, clock speed, BogoMIPS rating, | ||
456 | and memory size. | ||
457 | |||
458 | config ISA | ||
459 | bool | ||
460 | depends on Q40 || AMIGA_PCMCIA | ||
461 | default y | ||
462 | help | ||
463 | Find out whether you have ISA slots on your motherboard. ISA is the | ||
464 | name of a bus system, i.e. the way the CPU talks to the other stuff | ||
465 | inside your box. Other bus systems are PCI, EISA, MicroChannel | ||
466 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | ||
467 | newer boards don't support it. If you have ISA, say Y, otherwise N. | ||
468 | |||
469 | config GENERIC_ISA_DMA | ||
470 | bool | ||
471 | depends on Q40 || AMIGA_PCMCIA | ||
472 | default y | ||
473 | |||
474 | config ZONE_DMA | ||
475 | bool | ||
476 | default y | ||
477 | 78 | ||
478 | source "drivers/pci/Kconfig" | 79 | if !MMU |
80 | menu "Power management options" | ||
479 | 81 | ||
480 | source "drivers/zorro/Kconfig" | 82 | config PM |
83 | bool "Power Management support" | ||
84 | help | ||
85 | Support processor power management modes | ||
481 | 86 | ||
482 | endmenu | 87 | endmenu |
88 | endif | ||
483 | 89 | ||
484 | source "net/Kconfig" | 90 | source "net/Kconfig" |
485 | 91 | ||
486 | source "drivers/Kconfig" | 92 | source "drivers/Kconfig" |
487 | 93 | ||
94 | if MMU | ||
95 | |||
488 | menu "Character devices" | 96 | menu "Character devices" |
489 | 97 | ||
490 | config ATARI_MFPSER | 98 | config ATARI_MFPSER |
@@ -627,6 +235,8 @@ config SERIAL_CONSOLE | |||
627 | 235 | ||
628 | endmenu | 236 | endmenu |
629 | 237 | ||
238 | endif | ||
239 | |||
630 | source "fs/Kconfig" | 240 | source "fs/Kconfig" |
631 | 241 | ||
632 | source "arch/m68k/Kconfig.debug" | 242 | source "arch/m68k/Kconfig.debug" |
diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug index f53b6d5300e5..2bdb1b01115c 100644 --- a/arch/m68k/Kconfig.debug +++ b/arch/m68k/Kconfig.debug | |||
@@ -2,4 +2,38 @@ menu "Kernel hacking" | |||
2 | 2 | ||
3 | source "lib/Kconfig.debug" | 3 | source "lib/Kconfig.debug" |
4 | 4 | ||
5 | if !MMU | ||
6 | |||
7 | config FULLDEBUG | ||
8 | bool "Full Symbolic/Source Debugging support" | ||
9 | help | ||
10 | Enable debugging symbols on kernel build. | ||
11 | |||
12 | config HIGHPROFILE | ||
13 | bool "Use fast second timer for profiling" | ||
14 | depends on COLDFIRE | ||
15 | help | ||
16 | Use a fast secondary clock to produce profiling information. | ||
17 | |||
18 | config BOOTPARAM | ||
19 | bool 'Compiled-in Kernel Boot Parameter' | ||
20 | |||
21 | config BOOTPARAM_STRING | ||
22 | string 'Kernel Boot Parameter' | ||
23 | default 'console=ttyS0,19200' | ||
24 | depends on BOOTPARAM | ||
25 | |||
26 | config NO_KERNEL_MSG | ||
27 | bool "Suppress Kernel BUG Messages" | ||
28 | help | ||
29 | Do not output any debug BUG messages within the kernel. | ||
30 | |||
31 | config BDM_DISABLE | ||
32 | bool "Disable BDM signals" | ||
33 | depends on (EXPERIMENTAL && COLDFIRE) | ||
34 | help | ||
35 | Disable the ColdFire CPU's BDM signals. | ||
36 | |||
37 | endif | ||
38 | |||
5 | endmenu | 39 | endmenu |
diff --git a/arch/m68k/Kconfig.mmu b/arch/m68k/Kconfig.mmu new file mode 100644 index 000000000000..16539b1d5d3a --- /dev/null +++ b/arch/m68k/Kconfig.mmu | |||
@@ -0,0 +1,417 @@ | |||
1 | config GENERIC_IOMAP | ||
2 | bool | ||
3 | default y | ||
4 | |||
5 | config ARCH_MAY_HAVE_PC_FDC | ||
6 | bool | ||
7 | depends on BROKEN && (Q40 || SUN3X) | ||
8 | default y | ||
9 | |||
10 | config ARCH_USES_GETTIMEOFFSET | ||
11 | def_bool y | ||
12 | |||
13 | config EISA | ||
14 | bool | ||
15 | ---help--- | ||
16 | The Extended Industry Standard Architecture (EISA) bus was | ||
17 | developed as an open alternative to the IBM MicroChannel bus. | ||
18 | |||
19 | The EISA bus provided some of the features of the IBM MicroChannel | ||
20 | bus while maintaining backward compatibility with cards made for | ||
21 | the older ISA bus. The EISA bus saw limited use between 1988 and | ||
22 | 1995 when it was made obsolete by the PCI bus. | ||
23 | |||
24 | Say Y here if you are building a kernel for an EISA-based machine. | ||
25 | |||
26 | Otherwise, say N. | ||
27 | |||
28 | config MCA | ||
29 | bool | ||
30 | help | ||
31 | MicroChannel Architecture is found in some IBM PS/2 machines and | ||
32 | laptops. It is a bus system similar to PCI or ISA. See | ||
33 | <file:Documentation/mca.txt> (and especially the web page given | ||
34 | there) before attempting to build an MCA bus kernel. | ||
35 | |||
36 | config PCMCIA | ||
37 | tristate | ||
38 | ---help--- | ||
39 | Say Y here if you want to attach PCMCIA- or PC-cards to your Linux | ||
40 | computer. These are credit-card size devices such as network cards, | ||
41 | modems or hard drives often used with laptops computers. There are | ||
42 | actually two varieties of these cards: the older 16 bit PCMCIA cards | ||
43 | and the newer 32 bit CardBus cards. If you want to use CardBus | ||
44 | cards, you need to say Y here and also to "CardBus support" below. | ||
45 | |||
46 | To use your PC-cards, you will need supporting software from David | ||
47 | Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> | ||
48 | for location). Please also read the PCMCIA-HOWTO, available from | ||
49 | <http://www.tldp.org/docs.html#howto>. | ||
50 | |||
51 | To compile this driver as modules, choose M here: the | ||
52 | modules will be called pcmcia_core and ds. | ||
53 | |||
54 | config AMIGA | ||
55 | bool "Amiga support" | ||
56 | select MMU_MOTOROLA if MMU | ||
57 | help | ||
58 | This option enables support for the Amiga series of computers. If | ||
59 | you plan to use this kernel on an Amiga, say Y here and browse the | ||
60 | material available in <file:Documentation/m68k>; otherwise say N. | ||
61 | |||
62 | config ATARI | ||
63 | bool "Atari support" | ||
64 | select MMU_MOTOROLA if MMU | ||
65 | help | ||
66 | This option enables support for the 68000-based Atari series of | ||
67 | computers (including the TT, Falcon and Medusa). If you plan to use | ||
68 | this kernel on an Atari, say Y here and browse the material | ||
69 | available in <file:Documentation/m68k>; otherwise say N. | ||
70 | |||
71 | config MAC | ||
72 | bool "Macintosh support" | ||
73 | select MMU_MOTOROLA if MMU | ||
74 | help | ||
75 | This option enables support for the Apple Macintosh series of | ||
76 | computers (yes, there is experimental support now, at least for part | ||
77 | of the series). | ||
78 | |||
79 | Say N unless you're willing to code the remaining necessary support. | ||
80 | ;) | ||
81 | |||
82 | config NUBUS | ||
83 | bool | ||
84 | depends on MAC | ||
85 | default y | ||
86 | |||
87 | config M68K_L2_CACHE | ||
88 | bool | ||
89 | depends on MAC | ||
90 | default y | ||
91 | |||
92 | config APOLLO | ||
93 | bool "Apollo support" | ||
94 | select MMU_MOTOROLA if MMU | ||
95 | help | ||
96 | Say Y here if you want to run Linux on an MC680x0-based Apollo | ||
97 | Domain workstation such as the DN3500. | ||
98 | |||
99 | config VME | ||
100 | bool "VME (Motorola and BVM) support" | ||
101 | select MMU_MOTOROLA if MMU | ||
102 | help | ||
103 | Say Y here if you want to build a kernel for a 680x0 based VME | ||
104 | board. Boards currently supported include Motorola boards MVME147, | ||
105 | MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and | ||
106 | BVME6000 boards from BVM Ltd are also supported. | ||
107 | |||
108 | config MVME147 | ||
109 | bool "MVME147 support" | ||
110 | depends on VME | ||
111 | help | ||
112 | Say Y to include support for early Motorola VME boards. This will | ||
113 | build a kernel which can run on MVME147 single-board computers. If | ||
114 | you select this option you will have to select the appropriate | ||
115 | drivers for SCSI, Ethernet and serial ports later on. | ||
116 | |||
117 | config MVME16x | ||
118 | bool "MVME162, 166 and 167 support" | ||
119 | depends on VME | ||
120 | help | ||
121 | Say Y to include support for Motorola VME boards. This will build a | ||
122 | kernel which can run on MVME162, MVME166, MVME167, MVME172, and | ||
123 | MVME177 boards. If you select this option you will have to select | ||
124 | the appropriate drivers for SCSI, Ethernet and serial ports later | ||
125 | on. | ||
126 | |||
127 | config BVME6000 | ||
128 | bool "BVME4000 and BVME6000 support" | ||
129 | depends on VME | ||
130 | help | ||
131 | Say Y to include support for VME boards from BVM Ltd. This will | ||
132 | build a kernel which can run on BVME4000 and BVME6000 boards. If | ||
133 | you select this option you will have to select the appropriate | ||
134 | drivers for SCSI, Ethernet and serial ports later on. | ||
135 | |||
136 | config HP300 | ||
137 | bool "HP9000/300 and HP9000/400 support" | ||
138 | select MMU_MOTOROLA if MMU | ||
139 | help | ||
140 | This option enables support for the HP9000/300 and HP9000/400 series | ||
141 | of workstations. Support for these machines is still somewhat | ||
142 | experimental. If you plan to try to use the kernel on such a machine | ||
143 | say Y here. | ||
144 | Everybody else says N. | ||
145 | |||
146 | config DIO | ||
147 | bool "DIO bus support" | ||
148 | depends on HP300 | ||
149 | default y | ||
150 | help | ||
151 | Say Y here to enable support for the "DIO" expansion bus used in | ||
152 | HP300 machines. If you are using such a system you almost certainly | ||
153 | want this. | ||
154 | |||
155 | config SUN3X | ||
156 | bool "Sun3x support" | ||
157 | select MMU_MOTOROLA if MMU | ||
158 | select M68030 | ||
159 | help | ||
160 | This option enables support for the Sun 3x series of workstations. | ||
161 | Be warned that this support is very experimental. | ||
162 | Note that Sun 3x kernels are not compatible with Sun 3 hardware. | ||
163 | General Linux information on the Sun 3x series (now discontinued) | ||
164 | is at <http://www.angelfire.com/ca2/tech68k/sun3.html>. | ||
165 | |||
166 | If you don't want to compile a kernel for a Sun 3x, say N. | ||
167 | |||
168 | config Q40 | ||
169 | bool "Q40/Q60 support" | ||
170 | select MMU_MOTOROLA if MMU | ||
171 | help | ||
172 | The Q40 is a Motorola 68040-based successor to the Sinclair QL | ||
173 | manufactured in Germany. There is an official Q40 home page at | ||
174 | <http://www.q40.de/>. This option enables support for the Q40 and | ||
175 | Q60. Select your CPU below. For 68LC060 don't forget to enable FPU | ||
176 | emulation. | ||
177 | |||
178 | config SUN3 | ||
179 | bool "Sun3 support" | ||
180 | depends on !MMU_MOTOROLA | ||
181 | select MMU_SUN3 if MMU | ||
182 | select M68020 | ||
183 | help | ||
184 | This option enables support for the Sun 3 series of workstations | ||
185 | (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires | ||
186 | that all other hardware types must be disabled, as Sun 3 kernels | ||
187 | are incompatible with all other m68k targets (including Sun 3x!). | ||
188 | |||
189 | If you don't want to compile a kernel exclusively for a Sun 3, say N. | ||
190 | |||
191 | config NATFEAT | ||
192 | bool "ARAnyM emulator support" | ||
193 | depends on ATARI | ||
194 | help | ||
195 | This option enables support for ARAnyM native features, such as | ||
196 | access to a disk image as /dev/hda. | ||
197 | |||
198 | config NFBLOCK | ||
199 | tristate "NatFeat block device support" | ||
200 | depends on BLOCK && NATFEAT | ||
201 | help | ||
202 | Say Y to include support for the ARAnyM NatFeat block device | ||
203 | which allows direct access to the hard drives without using | ||
204 | the hardware emulation. | ||
205 | |||
206 | config NFCON | ||
207 | tristate "NatFeat console driver" | ||
208 | depends on NATFEAT | ||
209 | help | ||
210 | Say Y to include support for the ARAnyM NatFeat console driver | ||
211 | which allows the console output to be redirected to the stderr | ||
212 | output of ARAnyM. | ||
213 | |||
214 | config NFETH | ||
215 | tristate "NatFeat Ethernet support" | ||
216 | depends on NET_ETHERNET && NATFEAT | ||
217 | help | ||
218 | Say Y to include support for the ARAnyM NatFeat network device | ||
219 | which will emulate a regular ethernet device while presenting an | ||
220 | ethertap device to the host system. | ||
221 | |||
222 | comment "Processor type" | ||
223 | |||
224 | config M68020 | ||
225 | bool "68020 support" | ||
226 | help | ||
227 | If you anticipate running this kernel on a computer with a MC68020 | ||
228 | processor, say Y. Otherwise, say N. Note that the 68020 requires a | ||
229 | 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the | ||
230 | Sun 3, which provides its own version. | ||
231 | |||
232 | config M68030 | ||
233 | bool "68030 support" | ||
234 | depends on !MMU_SUN3 | ||
235 | help | ||
236 | If you anticipate running this kernel on a computer with a MC68030 | ||
237 | processor, say Y. Otherwise, say N. Note that a MC68EC030 will not | ||
238 | work, as it does not include an MMU (Memory Management Unit). | ||
239 | |||
240 | config M68040 | ||
241 | bool "68040 support" | ||
242 | depends on !MMU_SUN3 | ||
243 | help | ||
244 | If you anticipate running this kernel on a computer with a MC68LC040 | ||
245 | or MC68040 processor, say Y. Otherwise, say N. Note that an | ||
246 | MC68EC040 will not work, as it does not include an MMU (Memory | ||
247 | Management Unit). | ||
248 | |||
249 | config M68060 | ||
250 | bool "68060 support" | ||
251 | depends on !MMU_SUN3 | ||
252 | help | ||
253 | If you anticipate running this kernel on a computer with a MC68060 | ||
254 | processor, say Y. Otherwise, say N. | ||
255 | |||
256 | config MMU_MOTOROLA | ||
257 | bool | ||
258 | |||
259 | config MMU_SUN3 | ||
260 | bool | ||
261 | depends on MMU && !MMU_MOTOROLA | ||
262 | |||
263 | config M68KFPU_EMU | ||
264 | bool "Math emulation support (EXPERIMENTAL)" | ||
265 | depends on EXPERIMENTAL | ||
266 | help | ||
267 | At some point in the future, this will cause floating-point math | ||
268 | instructions to be emulated by the kernel on machines that lack a | ||
269 | floating-point math coprocessor. Thrill-seekers and chronically | ||
270 | sleep-deprived psychotic hacker types can say Y now, everyone else | ||
271 | should probably wait a while. | ||
272 | |||
273 | config M68KFPU_EMU_EXTRAPREC | ||
274 | bool "Math emulation extra precision" | ||
275 | depends on M68KFPU_EMU | ||
276 | help | ||
277 | The fpu uses normally a few bit more during calculations for | ||
278 | correct rounding, the emulator can (often) do the same but this | ||
279 | extra calculation can cost quite some time, so you can disable | ||
280 | it here. The emulator will then "only" calculate with a 64 bit | ||
281 | mantissa and round slightly incorrect, what is more than enough | ||
282 | for normal usage. | ||
283 | |||
284 | config M68KFPU_EMU_ONLY | ||
285 | bool "Math emulation only kernel" | ||
286 | depends on M68KFPU_EMU | ||
287 | help | ||
288 | This option prevents any floating-point instructions from being | ||
289 | compiled into the kernel, thereby the kernel doesn't save any | ||
290 | floating point context anymore during task switches, so this | ||
291 | kernel will only be usable on machines without a floating-point | ||
292 | math coprocessor. This makes the kernel a bit faster as no tests | ||
293 | needs to be executed whether a floating-point instruction in the | ||
294 | kernel should be executed or not. | ||
295 | |||
296 | config ADVANCED | ||
297 | bool "Advanced configuration options" | ||
298 | ---help--- | ||
299 | This gives you access to some advanced options for the CPU. The | ||
300 | defaults should be fine for most users, but these options may make | ||
301 | it possible for you to improve performance somewhat if you know what | ||
302 | you are doing. | ||
303 | |||
304 | Note that the answer to this question won't directly affect the | ||
305 | kernel: saying N will just cause the configurator to skip all | ||
306 | the questions about these options. | ||
307 | |||
308 | Most users should say N to this question. | ||
309 | |||
310 | config RMW_INSNS | ||
311 | bool "Use read-modify-write instructions" | ||
312 | depends on ADVANCED | ||
313 | ---help--- | ||
314 | This allows to use certain instructions that work with indivisible | ||
315 | read-modify-write bus cycles. While this is faster than the | ||
316 | workaround of disabling interrupts, it can conflict with DMA | ||
317 | ( = direct memory access) on many Amiga systems, and it is also said | ||
318 | to destabilize other machines. It is very likely that this will | ||
319 | cause serious problems on any Amiga or Atari Medusa if set. The only | ||
320 | configuration where it should work are 68030-based Ataris, where it | ||
321 | apparently improves performance. But you've been warned! Unless you | ||
322 | really know what you are doing, say N. Try Y only if you're quite | ||
323 | adventurous. | ||
324 | |||
325 | config SINGLE_MEMORY_CHUNK | ||
326 | bool "Use one physical chunk of memory only" if ADVANCED && !SUN3 | ||
327 | default y if SUN3 | ||
328 | select NEED_MULTIPLE_NODES | ||
329 | help | ||
330 | Ignore all but the first contiguous chunk of physical memory for VM | ||
331 | purposes. This will save a few bytes kernel size and may speed up | ||
332 | some operations. Say N if not sure. | ||
333 | |||
334 | config 060_WRITETHROUGH | ||
335 | bool "Use write-through caching for 68060 supervisor accesses" | ||
336 | depends on ADVANCED && M68060 | ||
337 | ---help--- | ||
338 | The 68060 generally uses copyback caching of recently accessed data. | ||
339 | Copyback caching means that memory writes will be held in an on-chip | ||
340 | cache and only written back to memory some time later. Saying Y | ||
341 | here will force supervisor (kernel) accesses to use writethrough | ||
342 | caching. Writethrough caching means that data is written to memory | ||
343 | straight away, so that cache and memory data always agree. | ||
344 | Writethrough caching is less efficient, but is needed for some | ||
345 | drivers on 68060 based systems where the 68060 bus snooping signal | ||
346 | is hardwired on. The 53c710 SCSI driver is known to suffer from | ||
347 | this problem. | ||
348 | |||
349 | config ARCH_DISCONTIGMEM_ENABLE | ||
350 | def_bool !SINGLE_MEMORY_CHUNK | ||
351 | |||
352 | config NODES_SHIFT | ||
353 | int | ||
354 | default "3" | ||
355 | depends on !SINGLE_MEMORY_CHUNK | ||
356 | |||
357 | config ZORRO | ||
358 | bool "Amiga Zorro (AutoConfig) bus support" | ||
359 | depends on AMIGA | ||
360 | help | ||
361 | This enables support for the Zorro bus in the Amiga. If you have | ||
362 | expansion cards in your Amiga that conform to the Amiga | ||
363 | AutoConfig(tm) specification, say Y, otherwise N. Note that even | ||
364 | expansion cards that do not fit in the Zorro slots but fit in e.g. | ||
365 | the CPU slot may fall in this category, so you have to say Y to let | ||
366 | Linux use these. | ||
367 | |||
368 | config AMIGA_PCMCIA | ||
369 | bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)" | ||
370 | depends on AMIGA && EXPERIMENTAL | ||
371 | help | ||
372 | Include support in the kernel for pcmcia on Amiga 1200 and Amiga | ||
373 | 600. If you intend to use pcmcia cards say Y; otherwise say N. | ||
374 | |||
375 | config STRAM_PROC | ||
376 | bool "ST-RAM statistics in /proc" | ||
377 | depends on ATARI | ||
378 | help | ||
379 | Say Y here to report ST-RAM usage statistics in /proc/stram. | ||
380 | |||
381 | config HEARTBEAT | ||
382 | bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40 | ||
383 | default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300 | ||
384 | help | ||
385 | Use the power-on LED on your machine as a load meter. The exact | ||
386 | behavior is platform-dependent, but normally the flash frequency is | ||
387 | a hyperbolic function of the 5-minute load average. | ||
388 | |||
389 | # We have a dedicated heartbeat LED. :-) | ||
390 | config PROC_HARDWARE | ||
391 | bool "/proc/hardware support" | ||
392 | help | ||
393 | Say Y here to support the /proc/hardware file, which gives you | ||
394 | access to information about the machine you're running on, | ||
395 | including the model, CPU, MMU, clock speed, BogoMIPS rating, | ||
396 | and memory size. | ||
397 | |||
398 | config ISA | ||
399 | bool | ||
400 | depends on Q40 || AMIGA_PCMCIA | ||
401 | default y | ||
402 | help | ||
403 | Find out whether you have ISA slots on your motherboard. ISA is the | ||
404 | name of a bus system, i.e. the way the CPU talks to the other stuff | ||
405 | inside your box. Other bus systems are PCI, EISA, MicroChannel | ||
406 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | ||
407 | newer boards don't support it. If you have ISA, say Y, otherwise N. | ||
408 | |||
409 | config GENERIC_ISA_DMA | ||
410 | bool | ||
411 | depends on Q40 || AMIGA_PCMCIA | ||
412 | default y | ||
413 | |||
414 | source "drivers/pci/Kconfig" | ||
415 | |||
416 | source "drivers/zorro/Kconfig" | ||
417 | |||
diff --git a/arch/m68knommu/Kconfig b/arch/m68k/Kconfig.nommu index b5424cf948e6..273bccab9517 100644 --- a/arch/m68knommu/Kconfig +++ b/arch/m68k/Kconfig.nommu | |||
@@ -1,43 +1,7 @@ | |||
1 | config M68K | ||
2 | bool | ||
3 | default y | ||
4 | select HAVE_IDE | ||
5 | select HAVE_GENERIC_HARDIRQS | ||
6 | select GENERIC_HARDIRQS_NO_DEPRECATED | ||
7 | |||
8 | config MMU | ||
9 | bool | ||
10 | default n | ||
11 | |||
12 | config NO_DMA | ||
13 | bool | ||
14 | depends on !COLDFIRE | ||
15 | default y | ||
16 | |||
17 | config FPU | 1 | config FPU |
18 | bool | 2 | bool |
19 | default n | 3 | default n |
20 | 4 | ||
21 | config ZONE_DMA | ||
22 | bool | ||
23 | default y | ||
24 | |||
25 | config RWSEM_GENERIC_SPINLOCK | ||
26 | bool | ||
27 | default y | ||
28 | |||
29 | config RWSEM_XCHGADD_ALGORITHM | ||
30 | bool | ||
31 | default n | ||
32 | |||
33 | config ARCH_HAS_ILOG2_U32 | ||
34 | bool | ||
35 | default n | ||
36 | |||
37 | config ARCH_HAS_ILOG2_U64 | ||
38 | bool | ||
39 | default n | ||
40 | |||
41 | config GENERIC_FIND_NEXT_BIT | 5 | config GENERIC_FIND_NEXT_BIT |
42 | bool | 6 | bool |
43 | default y | 7 | default y |
@@ -46,29 +10,14 @@ config GENERIC_GPIO | |||
46 | bool | 10 | bool |
47 | default n | 11 | default n |
48 | 12 | ||
49 | config GENERIC_HWEIGHT | ||
50 | bool | ||
51 | default y | ||
52 | |||
53 | config GENERIC_CALIBRATE_DELAY | ||
54 | bool | ||
55 | default y | ||
56 | |||
57 | config GENERIC_CMOS_UPDATE | 13 | config GENERIC_CMOS_UPDATE |
58 | bool | 14 | bool |
59 | default y | 15 | default y |
60 | 16 | ||
61 | config TIME_LOW_RES | ||
62 | bool | ||
63 | default y | ||
64 | |||
65 | config GENERIC_CLOCKEVENTS | 17 | config GENERIC_CLOCKEVENTS |
66 | bool | 18 | bool |
67 | default n | 19 | default n |
68 | 20 | ||
69 | config NO_IOPORT | ||
70 | def_bool y | ||
71 | |||
72 | config COLDFIRE_SW_A7 | 21 | config COLDFIRE_SW_A7 |
73 | bool | 22 | bool |
74 | default n | 23 | default n |
@@ -85,12 +34,6 @@ config HAVE_MBAR | |||
85 | config HAVE_IPSBAR | 34 | config HAVE_IPSBAR |
86 | bool | 35 | bool |
87 | 36 | ||
88 | source "init/Kconfig" | ||
89 | |||
90 | source "kernel/Kconfig.freezer" | ||
91 | |||
92 | menu "Processor type and features" | ||
93 | |||
94 | choice | 37 | choice |
95 | prompt "CPU" | 38 | prompt "CPU" |
96 | default M68EZ328 | 39 | default M68EZ328 |
@@ -630,11 +573,6 @@ config 4KSTACKS | |||
630 | running more threads on a system and also reduces the pressure | 573 | running more threads on a system and also reduces the pressure |
631 | on the VM subsystem for higher order allocations. | 574 | on the VM subsystem for higher order allocations. |
632 | 575 | ||
633 | config HZ | ||
634 | int | ||
635 | default 1000 if CLEOPATRA | ||
636 | default 100 | ||
637 | |||
638 | comment "RAM configuration" | 576 | comment "RAM configuration" |
639 | 577 | ||
640 | config RAMBASE | 578 | config RAMBASE |
@@ -803,10 +741,6 @@ endif | |||
803 | 741 | ||
804 | source "kernel/time/Kconfig" | 742 | source "kernel/time/Kconfig" |
805 | 743 | ||
806 | source "mm/Kconfig" | ||
807 | |||
808 | endmenu | ||
809 | |||
810 | config ISA_DMA_API | 744 | config ISA_DMA_API |
811 | bool | 745 | bool |
812 | depends on !M5272 | 746 | depends on !M5272 |
@@ -814,31 +748,3 @@ config ISA_DMA_API | |||
814 | 748 | ||
815 | source "drivers/pcmcia/Kconfig" | 749 | source "drivers/pcmcia/Kconfig" |
816 | 750 | ||
817 | menu "Executable file formats" | ||
818 | |||
819 | source "fs/Kconfig.binfmt" | ||
820 | |||
821 | endmenu | ||
822 | |||
823 | menu "Power management options" | ||
824 | |||
825 | config PM | ||
826 | bool "Power Management support" | ||
827 | help | ||
828 | Support processor power management modes | ||
829 | |||
830 | endmenu | ||
831 | |||
832 | source "net/Kconfig" | ||
833 | |||
834 | source "drivers/Kconfig" | ||
835 | |||
836 | source "fs/Kconfig" | ||
837 | |||
838 | source "arch/m68knommu/Kconfig.debug" | ||
839 | |||
840 | source "security/Kconfig" | ||
841 | |||
842 | source "crypto/Kconfig" | ||
843 | |||
844 | source "lib/Kconfig" | ||
diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index b793163abc61..be46cadd4017 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile | |||
@@ -1,123 +1,7 @@ | |||
1 | # | ||
2 | # m68k/Makefile | ||
3 | # | ||
4 | # This file is included by the global makefile so that you can add your own | ||
5 | # architecture-specific flags and dependencies. Remember to do have actions | ||
6 | # for "archclean" and "archdep" for cleaning up and making dependencies for | ||
7 | # this architecture | ||
8 | # | ||
9 | # This file is subject to the terms and conditions of the GNU General Public | ||
10 | # License. See the file "COPYING" in the main directory of this archive | ||
11 | # for more details. | ||
12 | # | ||
13 | # Copyright (C) 1994 by Hamish Macdonald | ||
14 | # | ||
15 | |||
16 | KBUILD_DEFCONFIG := multi_defconfig | 1 | KBUILD_DEFCONFIG := multi_defconfig |
17 | 2 | ||
18 | # override top level makefile | 3 | ifdef CONFIG_MMU |
19 | AS += -m68020 | 4 | include $(srctree)/arch/m68k/Makefile_mm |
20 | LDFLAGS := -m m68kelf | ||
21 | KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds | ||
22 | ifneq ($(SUBARCH),$(ARCH)) | ||
23 | ifeq ($(CROSS_COMPILE),) | ||
24 | CROSS_COMPILE := $(call cc-cross-prefix, \ | ||
25 | m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-) | ||
26 | endif | ||
27 | endif | ||
28 | |||
29 | ifdef CONFIG_SUN3 | ||
30 | LDFLAGS_vmlinux = -N | ||
31 | endif | ||
32 | |||
33 | CHECKFLAGS += -D__mc68000__ | ||
34 | |||
35 | # without -fno-strength-reduce the 53c7xx.c driver fails ;-( | ||
36 | KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2 | ||
37 | |||
38 | # enable processor switch if compiled only for a single cpu | ||
39 | ifndef CONFIG_M68020 | ||
40 | ifndef CONFIG_M68030 | ||
41 | |||
42 | ifndef CONFIG_M68060 | ||
43 | KBUILD_CFLAGS += -m68040 | ||
44 | endif | ||
45 | |||
46 | ifndef CONFIG_M68040 | ||
47 | KBUILD_CFLAGS += -m68060 | ||
48 | endif | ||
49 | |||
50 | endif | ||
51 | endif | ||
52 | |||
53 | ifdef CONFIG_KGDB | ||
54 | # If configured for kgdb support, include debugging infos and keep the | ||
55 | # frame pointer | ||
56 | KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g | ||
57 | endif | ||
58 | |||
59 | ifndef CONFIG_SUN3 | ||
60 | head-y := arch/m68k/kernel/head.o | ||
61 | else | 5 | else |
62 | head-y := arch/m68k/kernel/sun3-head.o | 6 | include $(srctree)/arch/m68k/Makefile_no |
63 | endif | 7 | endif |
64 | |||
65 | core-y += arch/m68k/kernel/ arch/m68k/mm/ | ||
66 | libs-y += arch/m68k/lib/ | ||
67 | |||
68 | core-$(CONFIG_Q40) += arch/m68k/q40/ | ||
69 | core-$(CONFIG_AMIGA) += arch/m68k/amiga/ | ||
70 | core-$(CONFIG_ATARI) += arch/m68k/atari/ | ||
71 | core-$(CONFIG_MAC) += arch/m68k/mac/ | ||
72 | core-$(CONFIG_HP300) += arch/m68k/hp300/ | ||
73 | core-$(CONFIG_APOLLO) += arch/m68k/apollo/ | ||
74 | core-$(CONFIG_MVME147) += arch/m68k/mvme147/ | ||
75 | core-$(CONFIG_MVME16x) += arch/m68k/mvme16x/ | ||
76 | core-$(CONFIG_BVME6000) += arch/m68k/bvme6000/ | ||
77 | core-$(CONFIG_SUN3X) += arch/m68k/sun3x/ arch/m68k/sun3/ | ||
78 | core-$(CONFIG_SUN3) += arch/m68k/sun3/ arch/m68k/sun3/prom/ | ||
79 | core-$(CONFIG_NATFEAT) += arch/m68k/emu/ | ||
80 | core-$(CONFIG_M68040) += arch/m68k/fpsp040/ | ||
81 | core-$(CONFIG_M68060) += arch/m68k/ifpsp060/ | ||
82 | core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/ | ||
83 | |||
84 | all: zImage | ||
85 | |||
86 | lilo: vmlinux | ||
87 | if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi | ||
88 | if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi | ||
89 | cat vmlinux > $(INSTALL_PATH)/vmlinux | ||
90 | cp System.map $(INSTALL_PATH)/System.map | ||
91 | if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi | ||
92 | |||
93 | zImage compressed: vmlinux.gz | ||
94 | |||
95 | vmlinux.gz: vmlinux | ||
96 | |||
97 | ifndef CONFIG_KGDB | ||
98 | cp vmlinux vmlinux.tmp | ||
99 | $(STRIP) vmlinux.tmp | ||
100 | gzip -9c vmlinux.tmp >vmlinux.gz | ||
101 | rm vmlinux.tmp | ||
102 | else | ||
103 | gzip -9c vmlinux >vmlinux.gz | ||
104 | endif | ||
105 | |||
106 | bzImage: vmlinux.bz2 | ||
107 | |||
108 | vmlinux.bz2: vmlinux | ||
109 | |||
110 | ifndef CONFIG_KGDB | ||
111 | cp vmlinux vmlinux.tmp | ||
112 | $(STRIP) vmlinux.tmp | ||
113 | bzip2 -1c vmlinux.tmp >vmlinux.bz2 | ||
114 | rm vmlinux.tmp | ||
115 | else | ||
116 | bzip2 -1c vmlinux >vmlinux.bz2 | ||
117 | endif | ||
118 | |||
119 | archclean: | ||
120 | rm -f vmlinux.gz vmlinux.bz2 | ||
121 | |||
122 | install: | ||
123 | sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)" | ||
diff --git a/arch/m68k/Makefile_mm b/arch/m68k/Makefile_mm new file mode 100644 index 000000000000..d449b6d5aecf --- /dev/null +++ b/arch/m68k/Makefile_mm | |||
@@ -0,0 +1,121 @@ | |||
1 | # | ||
2 | # m68k/Makefile | ||
3 | # | ||
4 | # This file is included by the global makefile so that you can add your own | ||
5 | # architecture-specific flags and dependencies. Remember to do have actions | ||
6 | # for "archclean" and "archdep" for cleaning up and making dependencies for | ||
7 | # this architecture | ||
8 | # | ||
9 | # This file is subject to the terms and conditions of the GNU General Public | ||
10 | # License. See the file "COPYING" in the main directory of this archive | ||
11 | # for more details. | ||
12 | # | ||
13 | # Copyright (C) 1994 by Hamish Macdonald | ||
14 | # | ||
15 | |||
16 | # override top level makefile | ||
17 | AS += -m68020 | ||
18 | LDFLAGS := -m m68kelf | ||
19 | KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds | ||
20 | ifneq ($(SUBARCH),$(ARCH)) | ||
21 | ifeq ($(CROSS_COMPILE),) | ||
22 | CROSS_COMPILE := $(call cc-cross-prefix, \ | ||
23 | m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-) | ||
24 | endif | ||
25 | endif | ||
26 | |||
27 | ifdef CONFIG_SUN3 | ||
28 | LDFLAGS_vmlinux = -N | ||
29 | endif | ||
30 | |||
31 | CHECKFLAGS += -D__mc68000__ | ||
32 | |||
33 | # without -fno-strength-reduce the 53c7xx.c driver fails ;-( | ||
34 | KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2 | ||
35 | |||
36 | # enable processor switch if compiled only for a single cpu | ||
37 | ifndef CONFIG_M68020 | ||
38 | ifndef CONFIG_M68030 | ||
39 | |||
40 | ifndef CONFIG_M68060 | ||
41 | KBUILD_CFLAGS += -m68040 | ||
42 | endif | ||
43 | |||
44 | ifndef CONFIG_M68040 | ||
45 | KBUILD_CFLAGS += -m68060 | ||
46 | endif | ||
47 | |||
48 | endif | ||
49 | endif | ||
50 | |||
51 | ifdef CONFIG_KGDB | ||
52 | # If configured for kgdb support, include debugging infos and keep the | ||
53 | # frame pointer | ||
54 | KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g | ||
55 | endif | ||
56 | |||
57 | ifndef CONFIG_SUN3 | ||
58 | head-y := arch/m68k/kernel/head.o | ||
59 | else | ||
60 | head-y := arch/m68k/kernel/sun3-head.o | ||
61 | endif | ||
62 | |||
63 | core-y += arch/m68k/kernel/ arch/m68k/mm/ | ||
64 | libs-y += arch/m68k/lib/ | ||
65 | |||
66 | core-$(CONFIG_Q40) += arch/m68k/q40/ | ||
67 | core-$(CONFIG_AMIGA) += arch/m68k/amiga/ | ||
68 | core-$(CONFIG_ATARI) += arch/m68k/atari/ | ||
69 | core-$(CONFIG_MAC) += arch/m68k/mac/ | ||
70 | core-$(CONFIG_HP300) += arch/m68k/hp300/ | ||
71 | core-$(CONFIG_APOLLO) += arch/m68k/apollo/ | ||
72 | core-$(CONFIG_MVME147) += arch/m68k/mvme147/ | ||
73 | core-$(CONFIG_MVME16x) += arch/m68k/mvme16x/ | ||
74 | core-$(CONFIG_BVME6000) += arch/m68k/bvme6000/ | ||
75 | core-$(CONFIG_SUN3X) += arch/m68k/sun3x/ arch/m68k/sun3/ | ||
76 | core-$(CONFIG_SUN3) += arch/m68k/sun3/ arch/m68k/sun3/prom/ | ||
77 | core-$(CONFIG_NATFEAT) += arch/m68k/emu/ | ||
78 | core-$(CONFIG_M68040) += arch/m68k/fpsp040/ | ||
79 | core-$(CONFIG_M68060) += arch/m68k/ifpsp060/ | ||
80 | core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/ | ||
81 | |||
82 | all: zImage | ||
83 | |||
84 | lilo: vmlinux | ||
85 | if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi | ||
86 | if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi | ||
87 | cat vmlinux > $(INSTALL_PATH)/vmlinux | ||
88 | cp System.map $(INSTALL_PATH)/System.map | ||
89 | if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi | ||
90 | |||
91 | zImage compressed: vmlinux.gz | ||
92 | |||
93 | vmlinux.gz: vmlinux | ||
94 | |||
95 | ifndef CONFIG_KGDB | ||
96 | cp vmlinux vmlinux.tmp | ||
97 | $(STRIP) vmlinux.tmp | ||
98 | gzip -9c vmlinux.tmp >vmlinux.gz | ||
99 | rm vmlinux.tmp | ||
100 | else | ||
101 | gzip -9c vmlinux >vmlinux.gz | ||
102 | endif | ||
103 | |||
104 | bzImage: vmlinux.bz2 | ||
105 | |||
106 | vmlinux.bz2: vmlinux | ||
107 | |||
108 | ifndef CONFIG_KGDB | ||
109 | cp vmlinux vmlinux.tmp | ||
110 | $(STRIP) vmlinux.tmp | ||
111 | bzip2 -1c vmlinux.tmp >vmlinux.bz2 | ||
112 | rm vmlinux.tmp | ||
113 | else | ||
114 | bzip2 -1c vmlinux >vmlinux.bz2 | ||
115 | endif | ||
116 | |||
117 | archclean: | ||
118 | rm -f vmlinux.gz vmlinux.bz2 | ||
119 | |||
120 | install: | ||
121 | sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)" | ||
diff --git a/arch/m68knommu/Makefile b/arch/m68k/Makefile_no index 589613fed31d..81652ab893e1 100644 --- a/arch/m68knommu/Makefile +++ b/arch/m68k/Makefile_no | |||
@@ -1,5 +1,5 @@ | |||
1 | # | 1 | # |
2 | # arch/m68knommu/Makefile | 2 | # arch/m68k/Makefile |
3 | # | 3 | # |
4 | # This file is subject to the terms and conditions of the GNU General Public | 4 | # This file is subject to the terms and conditions of the GNU General Public |
5 | # License. See the file "COPYING" in the main directory of this archive | 5 | # License. See the file "COPYING" in the main directory of this archive |
@@ -8,8 +8,6 @@ | |||
8 | # (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com> | 8 | # (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com> |
9 | # | 9 | # |
10 | 10 | ||
11 | KBUILD_DEFCONFIG := m5208evb_defconfig | ||
12 | |||
13 | platform-$(CONFIG_M68328) := 68328 | 11 | platform-$(CONFIG_M68328) := 68328 |
14 | platform-$(CONFIG_M68EZ328) := 68EZ328 | 12 | platform-$(CONFIG_M68EZ328) := 68EZ328 |
15 | platform-$(CONFIG_M68VZ328) := 68VZ328 | 13 | platform-$(CONFIG_M68VZ328) := 68VZ328 |
@@ -82,7 +80,7 @@ cpuclass-$(CONFIG_M68360) := 68360 | |||
82 | CPUCLASS := $(cpuclass-y) | 80 | CPUCLASS := $(cpuclass-y) |
83 | 81 | ||
84 | ifneq ($(CPUCLASS),$(PLATFORM)) | 82 | ifneq ($(CPUCLASS),$(PLATFORM)) |
85 | CLASSDIR := arch/m68knommu/platform/$(cpuclass-y)/ | 83 | CLASSDIR := arch/m68k/platform/$(cpuclass-y)/ |
86 | endif | 84 | endif |
87 | 85 | ||
88 | export PLATFORM BOARD MODEL CPUCLASS | 86 | export PLATFORM BOARD MODEL CPUCLASS |
@@ -114,13 +112,13 @@ KBUILD_CFLAGS += $(cflags-y) | |||
114 | KBUILD_CFLAGS += -D__linux__ | 112 | KBUILD_CFLAGS += -D__linux__ |
115 | KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" | 113 | KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" |
116 | 114 | ||
117 | head-y := arch/m68knommu/platform/$(cpuclass-y)/head.o | 115 | head-y := arch/m68k/platform/$(cpuclass-y)/head.o |
118 | 116 | ||
119 | core-y += arch/m68knommu/kernel/ \ | 117 | core-y += arch/m68k/kernel/ \ |
120 | arch/m68knommu/mm/ \ | 118 | arch/m68k/mm/ \ |
121 | $(CLASSDIR) \ | 119 | $(CLASSDIR) \ |
122 | arch/m68knommu/platform/$(PLATFORM)/ | 120 | arch/m68k/platform/$(PLATFORM)/ |
123 | libs-y += arch/m68knommu/lib/ | 121 | libs-y += arch/m68k/lib/ |
124 | 122 | ||
125 | archclean: | 123 | archclean: |
126 | 124 | ||
diff --git a/arch/m68knommu/configs/m5208evb_defconfig b/arch/m68k/configs/m5208evb_defconfig index 2f5655c577af..c1616824e201 100644 --- a/arch/m68knommu/configs/m5208evb_defconfig +++ b/arch/m68k/configs/m5208evb_defconfig | |||
@@ -1,3 +1,4 @@ | |||
1 | # CONFIG_MMU is not set | ||
1 | CONFIG_EXPERIMENTAL=y | 2 | CONFIG_EXPERIMENTAL=y |
2 | CONFIG_LOG_BUF_SHIFT=14 | 3 | CONFIG_LOG_BUF_SHIFT=14 |
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | 4 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set |
@@ -37,6 +38,7 @@ CONFIG_INET=y | |||
37 | # CONFIG_INET_LRO is not set | 38 | # CONFIG_INET_LRO is not set |
38 | # CONFIG_INET_DIAG is not set | 39 | # CONFIG_INET_DIAG is not set |
39 | # CONFIG_IPV6 is not set | 40 | # CONFIG_IPV6 is not set |
41 | # CONFIG_FW_LOADER is not set | ||
40 | CONFIG_MTD=y | 42 | CONFIG_MTD=y |
41 | CONFIG_MTD_PARTITIONS=y | 43 | CONFIG_MTD_PARTITIONS=y |
42 | CONFIG_MTD_CHAR=y | 44 | CONFIG_MTD_CHAR=y |
diff --git a/arch/m68knommu/configs/m5249evb_defconfig b/arch/m68k/configs/m5249evb_defconfig index 16df72bfbd45..a6599e42facf 100644 --- a/arch/m68knommu/configs/m5249evb_defconfig +++ b/arch/m68k/configs/m5249evb_defconfig | |||
@@ -1,3 +1,4 @@ | |||
1 | # CONFIG_MMU is not set | ||
1 | CONFIG_EXPERIMENTAL=y | 2 | CONFIG_EXPERIMENTAL=y |
2 | CONFIG_LOG_BUF_SHIFT=14 | 3 | CONFIG_LOG_BUF_SHIFT=14 |
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | 4 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set |
@@ -35,6 +36,7 @@ CONFIG_INET=y | |||
35 | # CONFIG_INET_LRO is not set | 36 | # CONFIG_INET_LRO is not set |
36 | # CONFIG_INET_DIAG is not set | 37 | # CONFIG_INET_DIAG is not set |
37 | # CONFIG_IPV6 is not set | 38 | # CONFIG_IPV6 is not set |
39 | # CONFIG_FW_LOADER is not set | ||
38 | CONFIG_MTD=y | 40 | CONFIG_MTD=y |
39 | CONFIG_MTD_PARTITIONS=y | 41 | CONFIG_MTD_PARTITIONS=y |
40 | CONFIG_MTD_CHAR=y | 42 | CONFIG_MTD_CHAR=y |
diff --git a/arch/m68knommu/configs/m5272c3_defconfig b/arch/m68k/configs/m5272c3_defconfig index 4e6ea50c7f33..3fa60a57a0f9 100644 --- a/arch/m68knommu/configs/m5272c3_defconfig +++ b/arch/m68k/configs/m5272c3_defconfig | |||
@@ -1,3 +1,4 @@ | |||
1 | # CONFIG_MMU is not set | ||
1 | CONFIG_EXPERIMENTAL=y | 2 | CONFIG_EXPERIMENTAL=y |
2 | CONFIG_LOG_BUF_SHIFT=14 | 3 | CONFIG_LOG_BUF_SHIFT=14 |
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | 4 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set |
@@ -33,6 +34,7 @@ CONFIG_INET=y | |||
33 | # CONFIG_INET_LRO is not set | 34 | # CONFIG_INET_LRO is not set |
34 | # CONFIG_INET_DIAG is not set | 35 | # CONFIG_INET_DIAG is not set |
35 | # CONFIG_IPV6 is not set | 36 | # CONFIG_IPV6 is not set |
37 | # CONFIG_FW_LOADER is not set | ||
36 | CONFIG_MTD=y | 38 | CONFIG_MTD=y |
37 | CONFIG_MTD_PARTITIONS=y | 39 | CONFIG_MTD_PARTITIONS=y |
38 | CONFIG_MTD_CHAR=y | 40 | CONFIG_MTD_CHAR=y |
diff --git a/arch/m68knommu/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig index f3dd74115a34..33c32aeca12b 100644 --- a/arch/m68knommu/configs/m5275evb_defconfig +++ b/arch/m68k/configs/m5275evb_defconfig | |||
@@ -1,3 +1,4 @@ | |||
1 | # CONFIG_MMU is not set | ||
1 | CONFIG_EXPERIMENTAL=y | 2 | CONFIG_EXPERIMENTAL=y |
2 | CONFIG_LOG_BUF_SHIFT=14 | 3 | CONFIG_LOG_BUF_SHIFT=14 |
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | 4 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set |
@@ -36,6 +37,7 @@ CONFIG_INET=y | |||
36 | # CONFIG_INET_LRO is not set | 37 | # CONFIG_INET_LRO is not set |
37 | # CONFIG_INET_DIAG is not set | 38 | # CONFIG_INET_DIAG is not set |
38 | # CONFIG_IPV6 is not set | 39 | # CONFIG_IPV6 is not set |
40 | # CONFIG_FW_LOADER is not set | ||
39 | CONFIG_MTD=y | 41 | CONFIG_MTD=y |
40 | CONFIG_MTD_PARTITIONS=y | 42 | CONFIG_MTD_PARTITIONS=y |
41 | CONFIG_MTD_CHAR=y | 43 | CONFIG_MTD_CHAR=y |
diff --git a/arch/m68knommu/configs/m5307c3_defconfig b/arch/m68k/configs/m5307c3_defconfig index bce0a20c3737..43795f41f7c7 100644 --- a/arch/m68knommu/configs/m5307c3_defconfig +++ b/arch/m68k/configs/m5307c3_defconfig | |||
@@ -1,3 +1,4 @@ | |||
1 | # CONFIG_MMU is not set | ||
1 | CONFIG_EXPERIMENTAL=y | 2 | CONFIG_EXPERIMENTAL=y |
2 | CONFIG_LOG_BUF_SHIFT=14 | 3 | CONFIG_LOG_BUF_SHIFT=14 |
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | 4 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set |
@@ -35,6 +36,7 @@ CONFIG_INET=y | |||
35 | # CONFIG_INET_LRO is not set | 36 | # CONFIG_INET_LRO is not set |
36 | # CONFIG_INET_DIAG is not set | 37 | # CONFIG_INET_DIAG is not set |
37 | # CONFIG_IPV6 is not set | 38 | # CONFIG_IPV6 is not set |
39 | # CONFIG_FW_LOADER is not set | ||
38 | CONFIG_MTD=y | 40 | CONFIG_MTD=y |
39 | CONFIG_MTD_PARTITIONS=y | 41 | CONFIG_MTD_PARTITIONS=y |
40 | CONFIG_MTD_CHAR=y | 42 | CONFIG_MTD_CHAR=y |
diff --git a/arch/m68knommu/configs/m5407c3_defconfig b/arch/m68k/configs/m5407c3_defconfig index 618cc32691f2..72746c57a571 100644 --- a/arch/m68knommu/configs/m5407c3_defconfig +++ b/arch/m68k/configs/m5407c3_defconfig | |||
@@ -1,3 +1,4 @@ | |||
1 | # CONFIG_MMU is not set | ||
1 | CONFIG_EXPERIMENTAL=y | 2 | CONFIG_EXPERIMENTAL=y |
2 | CONFIG_LOG_BUF_SHIFT=14 | 3 | CONFIG_LOG_BUF_SHIFT=14 |
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | 4 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set |
@@ -35,6 +36,7 @@ CONFIG_INET=y | |||
35 | # CONFIG_INET_LRO is not set | 36 | # CONFIG_INET_LRO is not set |
36 | # CONFIG_INET_DIAG is not set | 37 | # CONFIG_INET_DIAG is not set |
37 | # CONFIG_IPV6 is not set | 38 | # CONFIG_IPV6 is not set |
39 | # CONFIG_FW_LOADER is not set | ||
38 | CONFIG_MTD=y | 40 | CONFIG_MTD=y |
39 | CONFIG_MTD_PARTITIONS=y | 41 | CONFIG_MTD_PARTITIONS=y |
40 | CONFIG_MTD_CHAR=y | 42 | CONFIG_MTD_CHAR=y |
diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index 55d5d6b680a2..c482ebc9dd54 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile | |||
@@ -1,17 +1,5 @@ | |||
1 | # | 1 | ifdef CONFIG_MMU |
2 | # Makefile for the linux kernel. | 2 | include arch/m68k/kernel/Makefile_mm |
3 | # | ||
4 | |||
5 | ifndef CONFIG_SUN3 | ||
6 | extra-y := head.o | ||
7 | else | 3 | else |
8 | extra-y := sun3-head.o | 4 | include arch/m68k/kernel/Makefile_no |
9 | endif | 5 | endif |
10 | extra-y += vmlinux.lds | ||
11 | |||
12 | obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o module.o \ | ||
13 | sys_m68k.o time.o setup.o m68k_ksyms.o devres.o | ||
14 | |||
15 | devres-y = ../../../kernel/irq/devres.o | ||
16 | |||
17 | obj-y$(CONFIG_MMU_SUN3) += dma.o # no, it's not a typo | ||
diff --git a/arch/m68k/kernel/Makefile_mm b/arch/m68k/kernel/Makefile_mm new file mode 100644 index 000000000000..55d5d6b680a2 --- /dev/null +++ b/arch/m68k/kernel/Makefile_mm | |||
@@ -0,0 +1,17 @@ | |||
1 | # | ||
2 | # Makefile for the linux kernel. | ||
3 | # | ||
4 | |||
5 | ifndef CONFIG_SUN3 | ||
6 | extra-y := head.o | ||
7 | else | ||
8 | extra-y := sun3-head.o | ||
9 | endif | ||
10 | extra-y += vmlinux.lds | ||
11 | |||
12 | obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o module.o \ | ||
13 | sys_m68k.o time.o setup.o m68k_ksyms.o devres.o | ||
14 | |||
15 | devres-y = ../../../kernel/irq/devres.o | ||
16 | |||
17 | obj-y$(CONFIG_MMU_SUN3) += dma.o # no, it's not a typo | ||
diff --git a/arch/m68knommu/kernel/Makefile b/arch/m68k/kernel/Makefile_no index 37c3fc074c0a..37c3fc074c0a 100644 --- a/arch/m68knommu/kernel/Makefile +++ b/arch/m68k/kernel/Makefile_no | |||
diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c index 78e59b82ebc3..59a69a5c62f2 100644 --- a/arch/m68k/kernel/asm-offsets.c +++ b/arch/m68k/kernel/asm-offsets.c | |||
@@ -1,100 +1,5 @@ | |||
1 | /* | ||
2 | * This program is used to generate definitions needed by | ||
3 | * assembly language modules. | ||
4 | * | ||
5 | * We use the technique used in the OSF Mach kernel code: | ||
6 | * generate asm statements containing #defines, | ||
7 | * compile this file to assembler, and then extract the | ||
8 | * #defines from the assembly-language output. | ||
9 | */ | ||
10 | |||
11 | #define ASM_OFFSETS_C | ||
12 | |||
13 | #include <linux/stddef.h> | ||
14 | #include <linux/sched.h> | ||
15 | #include <linux/kernel_stat.h> | ||
16 | #include <linux/kbuild.h> | ||
17 | #include <asm/bootinfo.h> | ||
18 | #include <asm/irq.h> | ||
19 | #include <asm/amigahw.h> | ||
20 | #include <linux/font.h> | ||
21 | |||
22 | int main(void) | ||
23 | { | ||
24 | /* offsets into the task struct */ | ||
25 | DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); | ||
26 | DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info)); | ||
27 | DEFINE(TASK_MM, offsetof(struct task_struct, mm)); | ||
28 | #ifdef CONFIG_MMU | 1 | #ifdef CONFIG_MMU |
29 | DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info)); | 2 | #include "asm-offsets_mm.c" |
3 | #else | ||
4 | #include "asm-offsets_no.c" | ||
30 | #endif | 5 | #endif |
31 | |||
32 | /* offsets into the thread struct */ | ||
33 | DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); | ||
34 | DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); | ||
35 | DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); | ||
36 | DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); | ||
37 | DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); | ||
38 | DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); | ||
39 | DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); | ||
40 | DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); | ||
41 | DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); | ||
42 | |||
43 | /* offsets into the thread_info struct */ | ||
44 | DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count)); | ||
45 | DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags)); | ||
46 | |||
47 | /* offsets into the pt_regs */ | ||
48 | DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); | ||
49 | DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); | ||
50 | DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); | ||
51 | DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); | ||
52 | DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); | ||
53 | DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); | ||
54 | DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); | ||
55 | DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); | ||
56 | DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); | ||
57 | DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); | ||
58 | DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); | ||
59 | DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); | ||
60 | /* bitfields are a bit difficult */ | ||
61 | DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); | ||
62 | |||
63 | /* offsets into the irq_cpustat_t struct */ | ||
64 | DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); | ||
65 | |||
66 | /* offsets into the bi_record struct */ | ||
67 | DEFINE(BIR_TAG, offsetof(struct bi_record, tag)); | ||
68 | DEFINE(BIR_SIZE, offsetof(struct bi_record, size)); | ||
69 | DEFINE(BIR_DATA, offsetof(struct bi_record, data)); | ||
70 | |||
71 | /* offsets into font_desc (drivers/video/console/font.h) */ | ||
72 | DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx)); | ||
73 | DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name)); | ||
74 | DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width)); | ||
75 | DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height)); | ||
76 | DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data)); | ||
77 | DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref)); | ||
78 | |||
79 | /* signal defines */ | ||
80 | DEFINE(LSIGSEGV, SIGSEGV); | ||
81 | DEFINE(LSEGV_MAPERR, SEGV_MAPERR); | ||
82 | DEFINE(LSIGTRAP, SIGTRAP); | ||
83 | DEFINE(LTRAP_TRACE, TRAP_TRACE); | ||
84 | |||
85 | /* offsets into the custom struct */ | ||
86 | DEFINE(CUSTOMBASE, &amiga_custom); | ||
87 | DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar)); | ||
88 | DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr)); | ||
89 | DEFINE(C_INTENA, offsetof(struct CUSTOM, intena)); | ||
90 | DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq)); | ||
91 | DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr)); | ||
92 | DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat)); | ||
93 | DEFINE(C_SERPER, offsetof(struct CUSTOM, serper)); | ||
94 | DEFINE(CIAABASE, &ciaa); | ||
95 | DEFINE(CIABBASE, &ciab); | ||
96 | DEFINE(C_PRA, offsetof(struct CIA, pra)); | ||
97 | DEFINE(ZTWOBASE, zTwoBase); | ||
98 | |||
99 | return 0; | ||
100 | } | ||
diff --git a/arch/m68k/kernel/asm-offsets_mm.c b/arch/m68k/kernel/asm-offsets_mm.c new file mode 100644 index 000000000000..78e59b82ebc3 --- /dev/null +++ b/arch/m68k/kernel/asm-offsets_mm.c | |||
@@ -0,0 +1,100 @@ | |||
1 | /* | ||
2 | * This program is used to generate definitions needed by | ||
3 | * assembly language modules. | ||
4 | * | ||
5 | * We use the technique used in the OSF Mach kernel code: | ||
6 | * generate asm statements containing #defines, | ||
7 | * compile this file to assembler, and then extract the | ||
8 | * #defines from the assembly-language output. | ||
9 | */ | ||
10 | |||
11 | #define ASM_OFFSETS_C | ||
12 | |||
13 | #include <linux/stddef.h> | ||
14 | #include <linux/sched.h> | ||
15 | #include <linux/kernel_stat.h> | ||
16 | #include <linux/kbuild.h> | ||
17 | #include <asm/bootinfo.h> | ||
18 | #include <asm/irq.h> | ||
19 | #include <asm/amigahw.h> | ||
20 | #include <linux/font.h> | ||
21 | |||
22 | int main(void) | ||
23 | { | ||
24 | /* offsets into the task struct */ | ||
25 | DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); | ||
26 | DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info)); | ||
27 | DEFINE(TASK_MM, offsetof(struct task_struct, mm)); | ||
28 | #ifdef CONFIG_MMU | ||
29 | DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info)); | ||
30 | #endif | ||
31 | |||
32 | /* offsets into the thread struct */ | ||
33 | DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); | ||
34 | DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); | ||
35 | DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); | ||
36 | DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); | ||
37 | DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); | ||
38 | DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); | ||
39 | DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); | ||
40 | DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); | ||
41 | DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); | ||
42 | |||
43 | /* offsets into the thread_info struct */ | ||
44 | DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count)); | ||
45 | DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags)); | ||
46 | |||
47 | /* offsets into the pt_regs */ | ||
48 | DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); | ||
49 | DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); | ||
50 | DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); | ||
51 | DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); | ||
52 | DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); | ||
53 | DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); | ||
54 | DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); | ||
55 | DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); | ||
56 | DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); | ||
57 | DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); | ||
58 | DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); | ||
59 | DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); | ||
60 | /* bitfields are a bit difficult */ | ||
61 | DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); | ||
62 | |||
63 | /* offsets into the irq_cpustat_t struct */ | ||
64 | DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); | ||
65 | |||
66 | /* offsets into the bi_record struct */ | ||
67 | DEFINE(BIR_TAG, offsetof(struct bi_record, tag)); | ||
68 | DEFINE(BIR_SIZE, offsetof(struct bi_record, size)); | ||
69 | DEFINE(BIR_DATA, offsetof(struct bi_record, data)); | ||
70 | |||
71 | /* offsets into font_desc (drivers/video/console/font.h) */ | ||
72 | DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx)); | ||
73 | DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name)); | ||
74 | DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width)); | ||
75 | DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height)); | ||
76 | DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data)); | ||
77 | DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref)); | ||
78 | |||
79 | /* signal defines */ | ||
80 | DEFINE(LSIGSEGV, SIGSEGV); | ||
81 | DEFINE(LSEGV_MAPERR, SEGV_MAPERR); | ||
82 | DEFINE(LSIGTRAP, SIGTRAP); | ||
83 | DEFINE(LTRAP_TRACE, TRAP_TRACE); | ||
84 | |||
85 | /* offsets into the custom struct */ | ||
86 | DEFINE(CUSTOMBASE, &amiga_custom); | ||
87 | DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar)); | ||
88 | DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr)); | ||
89 | DEFINE(C_INTENA, offsetof(struct CUSTOM, intena)); | ||
90 | DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq)); | ||
91 | DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr)); | ||
92 | DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat)); | ||
93 | DEFINE(C_SERPER, offsetof(struct CUSTOM, serper)); | ||
94 | DEFINE(CIAABASE, &ciaa); | ||
95 | DEFINE(CIABBASE, &ciab); | ||
96 | DEFINE(C_PRA, offsetof(struct CIA, pra)); | ||
97 | DEFINE(ZTWOBASE, zTwoBase); | ||
98 | |||
99 | return 0; | ||
100 | } | ||
diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets_no.c index ffe02f41ad46..ffe02f41ad46 100644 --- a/arch/m68knommu/kernel/asm-offsets.c +++ b/arch/m68k/kernel/asm-offsets_no.c | |||
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 4bbb3c2a8880..90e8cb726c8c 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c | |||
@@ -1,130 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * This file is subject to the terms and conditions of the GNU General Public | 2 | #include "dma_mm.c" |
3 | * License. See the file COPYING in the main directory of this archive | 3 | #else |
4 | * for more details. | 4 | #include "dma_no.c" |
5 | */ | 5 | #endif |
6 | |||
7 | #undef DEBUG | ||
8 | |||
9 | #include <linux/dma-mapping.h> | ||
10 | #include <linux/device.h> | ||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/scatterlist.h> | ||
13 | #include <linux/slab.h> | ||
14 | #include <linux/vmalloc.h> | ||
15 | |||
16 | #include <asm/pgalloc.h> | ||
17 | |||
18 | void *dma_alloc_coherent(struct device *dev, size_t size, | ||
19 | dma_addr_t *handle, gfp_t flag) | ||
20 | { | ||
21 | struct page *page, **map; | ||
22 | pgprot_t pgprot; | ||
23 | void *addr; | ||
24 | int i, order; | ||
25 | |||
26 | pr_debug("dma_alloc_coherent: %d,%x\n", size, flag); | ||
27 | |||
28 | size = PAGE_ALIGN(size); | ||
29 | order = get_order(size); | ||
30 | |||
31 | page = alloc_pages(flag, order); | ||
32 | if (!page) | ||
33 | return NULL; | ||
34 | |||
35 | *handle = page_to_phys(page); | ||
36 | map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA); | ||
37 | if (!map) { | ||
38 | __free_pages(page, order); | ||
39 | return NULL; | ||
40 | } | ||
41 | split_page(page, order); | ||
42 | |||
43 | order = 1 << order; | ||
44 | size >>= PAGE_SHIFT; | ||
45 | map[0] = page; | ||
46 | for (i = 1; i < size; i++) | ||
47 | map[i] = page + i; | ||
48 | for (; i < order; i++) | ||
49 | __free_page(page + i); | ||
50 | pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); | ||
51 | if (CPU_IS_040_OR_060) | ||
52 | pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S; | ||
53 | else | ||
54 | pgprot_val(pgprot) |= _PAGE_NOCACHE030; | ||
55 | addr = vmap(map, size, VM_MAP, pgprot); | ||
56 | kfree(map); | ||
57 | |||
58 | return addr; | ||
59 | } | ||
60 | EXPORT_SYMBOL(dma_alloc_coherent); | ||
61 | |||
62 | void dma_free_coherent(struct device *dev, size_t size, | ||
63 | void *addr, dma_addr_t handle) | ||
64 | { | ||
65 | pr_debug("dma_free_coherent: %p, %x\n", addr, handle); | ||
66 | vfree(addr); | ||
67 | } | ||
68 | EXPORT_SYMBOL(dma_free_coherent); | ||
69 | |||
70 | void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, | ||
71 | size_t size, enum dma_data_direction dir) | ||
72 | { | ||
73 | switch (dir) { | ||
74 | case DMA_TO_DEVICE: | ||
75 | cache_push(handle, size); | ||
76 | break; | ||
77 | case DMA_FROM_DEVICE: | ||
78 | cache_clear(handle, size); | ||
79 | break; | ||
80 | default: | ||
81 | if (printk_ratelimit()) | ||
82 | printk("dma_sync_single_for_device: unsupported dir %u\n", dir); | ||
83 | break; | ||
84 | } | ||
85 | } | ||
86 | EXPORT_SYMBOL(dma_sync_single_for_device); | ||
87 | |||
88 | void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, | ||
89 | enum dma_data_direction dir) | ||
90 | { | ||
91 | int i; | ||
92 | |||
93 | for (i = 0; i < nents; sg++, i++) | ||
94 | dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); | ||
95 | } | ||
96 | EXPORT_SYMBOL(dma_sync_sg_for_device); | ||
97 | |||
98 | dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, | ||
99 | enum dma_data_direction dir) | ||
100 | { | ||
101 | dma_addr_t handle = virt_to_bus(addr); | ||
102 | |||
103 | dma_sync_single_for_device(dev, handle, size, dir); | ||
104 | return handle; | ||
105 | } | ||
106 | EXPORT_SYMBOL(dma_map_single); | ||
107 | |||
108 | dma_addr_t dma_map_page(struct device *dev, struct page *page, | ||
109 | unsigned long offset, size_t size, | ||
110 | enum dma_data_direction dir) | ||
111 | { | ||
112 | dma_addr_t handle = page_to_phys(page) + offset; | ||
113 | |||
114 | dma_sync_single_for_device(dev, handle, size, dir); | ||
115 | return handle; | ||
116 | } | ||
117 | EXPORT_SYMBOL(dma_map_page); | ||
118 | |||
119 | int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, | ||
120 | enum dma_data_direction dir) | ||
121 | { | ||
122 | int i; | ||
123 | |||
124 | for (i = 0; i < nents; sg++, i++) { | ||
125 | sg->dma_address = sg_phys(sg); | ||
126 | dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); | ||
127 | } | ||
128 | return nents; | ||
129 | } | ||
130 | EXPORT_SYMBOL(dma_map_sg); | ||
diff --git a/arch/m68k/kernel/dma_mm.c b/arch/m68k/kernel/dma_mm.c new file mode 100644 index 000000000000..4bbb3c2a8880 --- /dev/null +++ b/arch/m68k/kernel/dma_mm.c | |||
@@ -0,0 +1,130 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file COPYING in the main directory of this archive | ||
4 | * for more details. | ||
5 | */ | ||
6 | |||
7 | #undef DEBUG | ||
8 | |||
9 | #include <linux/dma-mapping.h> | ||
10 | #include <linux/device.h> | ||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/scatterlist.h> | ||
13 | #include <linux/slab.h> | ||
14 | #include <linux/vmalloc.h> | ||
15 | |||
16 | #include <asm/pgalloc.h> | ||
17 | |||
18 | void *dma_alloc_coherent(struct device *dev, size_t size, | ||
19 | dma_addr_t *handle, gfp_t flag) | ||
20 | { | ||
21 | struct page *page, **map; | ||
22 | pgprot_t pgprot; | ||
23 | void *addr; | ||
24 | int i, order; | ||
25 | |||
26 | pr_debug("dma_alloc_coherent: %d,%x\n", size, flag); | ||
27 | |||
28 | size = PAGE_ALIGN(size); | ||
29 | order = get_order(size); | ||
30 | |||
31 | page = alloc_pages(flag, order); | ||
32 | if (!page) | ||
33 | return NULL; | ||
34 | |||
35 | *handle = page_to_phys(page); | ||
36 | map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA); | ||
37 | if (!map) { | ||
38 | __free_pages(page, order); | ||
39 | return NULL; | ||
40 | } | ||
41 | split_page(page, order); | ||
42 | |||
43 | order = 1 << order; | ||
44 | size >>= PAGE_SHIFT; | ||
45 | map[0] = page; | ||
46 | for (i = 1; i < size; i++) | ||
47 | map[i] = page + i; | ||
48 | for (; i < order; i++) | ||
49 | __free_page(page + i); | ||
50 | pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); | ||
51 | if (CPU_IS_040_OR_060) | ||
52 | pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S; | ||
53 | else | ||
54 | pgprot_val(pgprot) |= _PAGE_NOCACHE030; | ||
55 | addr = vmap(map, size, VM_MAP, pgprot); | ||
56 | kfree(map); | ||
57 | |||
58 | return addr; | ||
59 | } | ||
60 | EXPORT_SYMBOL(dma_alloc_coherent); | ||
61 | |||
62 | void dma_free_coherent(struct device *dev, size_t size, | ||
63 | void *addr, dma_addr_t handle) | ||
64 | { | ||
65 | pr_debug("dma_free_coherent: %p, %x\n", addr, handle); | ||
66 | vfree(addr); | ||
67 | } | ||
68 | EXPORT_SYMBOL(dma_free_coherent); | ||
69 | |||
70 | void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, | ||
71 | size_t size, enum dma_data_direction dir) | ||
72 | { | ||
73 | switch (dir) { | ||
74 | case DMA_TO_DEVICE: | ||
75 | cache_push(handle, size); | ||
76 | break; | ||
77 | case DMA_FROM_DEVICE: | ||
78 | cache_clear(handle, size); | ||
79 | break; | ||
80 | default: | ||
81 | if (printk_ratelimit()) | ||
82 | printk("dma_sync_single_for_device: unsupported dir %u\n", dir); | ||
83 | break; | ||
84 | } | ||
85 | } | ||
86 | EXPORT_SYMBOL(dma_sync_single_for_device); | ||
87 | |||
88 | void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, | ||
89 | enum dma_data_direction dir) | ||
90 | { | ||
91 | int i; | ||
92 | |||
93 | for (i = 0; i < nents; sg++, i++) | ||
94 | dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); | ||
95 | } | ||
96 | EXPORT_SYMBOL(dma_sync_sg_for_device); | ||
97 | |||
98 | dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, | ||
99 | enum dma_data_direction dir) | ||
100 | { | ||
101 | dma_addr_t handle = virt_to_bus(addr); | ||
102 | |||
103 | dma_sync_single_for_device(dev, handle, size, dir); | ||
104 | return handle; | ||
105 | } | ||
106 | EXPORT_SYMBOL(dma_map_single); | ||
107 | |||
108 | dma_addr_t dma_map_page(struct device *dev, struct page *page, | ||
109 | unsigned long offset, size_t size, | ||
110 | enum dma_data_direction dir) | ||
111 | { | ||
112 | dma_addr_t handle = page_to_phys(page) + offset; | ||
113 | |||
114 | dma_sync_single_for_device(dev, handle, size, dir); | ||
115 | return handle; | ||
116 | } | ||
117 | EXPORT_SYMBOL(dma_map_page); | ||
118 | |||
119 | int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, | ||
120 | enum dma_data_direction dir) | ||
121 | { | ||
122 | int i; | ||
123 | |||
124 | for (i = 0; i < nents; sg++, i++) { | ||
125 | sg->dma_address = sg_phys(sg); | ||
126 | dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); | ||
127 | } | ||
128 | return nents; | ||
129 | } | ||
130 | EXPORT_SYMBOL(dma_map_sg); | ||
diff --git a/arch/m68knommu/kernel/dma.c b/arch/m68k/kernel/dma_no.c index fc61541aeb71..fc61541aeb71 100644 --- a/arch/m68knommu/kernel/dma.c +++ b/arch/m68k/kernel/dma_no.c | |||
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 1559dea36e55..081cf96f243b 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S | |||
@@ -1,753 +1,5 @@ | |||
1 | /* -*- mode: asm -*- | 1 | #ifdef CONFIG_MMU |
2 | * | 2 | #include "entry_mm.S" |
3 | * linux/arch/m68k/kernel/entry.S | 3 | #else |
4 | * | 4 | #include "entry_no.S" |
5 | * Copyright (C) 1991, 1992 Linus Torvalds | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General Public | ||
8 | * License. See the file README.legal in the main directory of this archive | ||
9 | * for more details. | ||
10 | * | ||
11 | * Linux/m68k support by Hamish Macdonald | ||
12 | * | ||
13 | * 68060 fixes by Jesper Skov | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | /* | ||
18 | * entry.S contains the system-call and fault low-level handling routines. | ||
19 | * This also contains the timer-interrupt handler, as well as all interrupts | ||
20 | * and faults that can result in a task-switch. | ||
21 | * | ||
22 | * NOTE: This code handles signal-recognition, which happens every time | ||
23 | * after a timer-interrupt and after each system call. | ||
24 | * | ||
25 | */ | ||
26 | |||
27 | /* | ||
28 | * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so | ||
29 | * all pointers that used to be 'current' are now entry | ||
30 | * number 0 in the 'current_set' list. | ||
31 | * | ||
32 | * 6/05/00 RZ: addedd writeback completion after return from sighandler | ||
33 | * for 68040 | ||
34 | */ | ||
35 | |||
36 | #include <linux/linkage.h> | ||
37 | #include <asm/entry.h> | ||
38 | #include <asm/errno.h> | ||
39 | #include <asm/setup.h> | ||
40 | #include <asm/segment.h> | ||
41 | #include <asm/traps.h> | ||
42 | #include <asm/unistd.h> | ||
43 | |||
44 | #include <asm/asm-offsets.h> | ||
45 | |||
46 | .globl system_call, buserr, trap, resume | ||
47 | .globl sys_call_table | ||
48 | .globl sys_fork, sys_clone, sys_vfork | ||
49 | .globl ret_from_interrupt, bad_interrupt | ||
50 | .globl auto_irqhandler_fixup | ||
51 | .globl user_irqvec_fixup, user_irqhandler_fixup | ||
52 | |||
53 | .text | ||
54 | ENTRY(buserr) | ||
55 | SAVE_ALL_INT | ||
56 | GET_CURRENT(%d0) | ||
57 | movel %sp,%sp@- | stack frame pointer argument | ||
58 | bsrl buserr_c | ||
59 | addql #4,%sp | ||
60 | jra .Lret_from_exception | ||
61 | |||
62 | ENTRY(trap) | ||
63 | SAVE_ALL_INT | ||
64 | GET_CURRENT(%d0) | ||
65 | movel %sp,%sp@- | stack frame pointer argument | ||
66 | bsrl trap_c | ||
67 | addql #4,%sp | ||
68 | jra .Lret_from_exception | ||
69 | |||
70 | | After a fork we jump here directly from resume, | ||
71 | | so that %d1 contains the previous task | ||
72 | | schedule_tail now used regardless of CONFIG_SMP | ||
73 | ENTRY(ret_from_fork) | ||
74 | movel %d1,%sp@- | ||
75 | jsr schedule_tail | ||
76 | addql #4,%sp | ||
77 | jra .Lret_from_exception | ||
78 | |||
79 | do_trace_entry: | ||
80 | movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace | ||
81 | subql #4,%sp | ||
82 | SAVE_SWITCH_STACK | ||
83 | jbsr syscall_trace | ||
84 | RESTORE_SWITCH_STACK | ||
85 | addql #4,%sp | ||
86 | movel %sp@(PT_OFF_ORIG_D0),%d0 | ||
87 | cmpl #NR_syscalls,%d0 | ||
88 | jcs syscall | ||
89 | badsys: | ||
90 | movel #-ENOSYS,%sp@(PT_OFF_D0) | ||
91 | jra ret_from_syscall | ||
92 | |||
93 | do_trace_exit: | ||
94 | subql #4,%sp | ||
95 | SAVE_SWITCH_STACK | ||
96 | jbsr syscall_trace | ||
97 | RESTORE_SWITCH_STACK | ||
98 | addql #4,%sp | ||
99 | jra .Lret_from_exception | ||
100 | |||
101 | ENTRY(ret_from_signal) | ||
102 | tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) | ||
103 | jge 1f | ||
104 | jbsr syscall_trace | ||
105 | 1: RESTORE_SWITCH_STACK | ||
106 | addql #4,%sp | ||
107 | /* on 68040 complete pending writebacks if any */ | ||
108 | #ifdef CONFIG_M68040 | ||
109 | bfextu %sp@(PT_OFF_FORMATVEC){#0,#4},%d0 | ||
110 | subql #7,%d0 | bus error frame ? | ||
111 | jbne 1f | ||
112 | movel %sp,%sp@- | ||
113 | jbsr berr_040cleanup | ||
114 | addql #4,%sp | ||
115 | 1: | ||
116 | #endif | 5 | #endif |
117 | jra .Lret_from_exception | ||
118 | |||
119 | ENTRY(system_call) | ||
120 | SAVE_ALL_SYS | ||
121 | |||
122 | GET_CURRENT(%d1) | ||
123 | | save top of frame | ||
124 | movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) | ||
125 | |||
126 | | syscall trace? | ||
127 | tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) | ||
128 | jmi do_trace_entry | ||
129 | cmpl #NR_syscalls,%d0 | ||
130 | jcc badsys | ||
131 | syscall: | ||
132 | jbsr @(sys_call_table,%d0:l:4)@(0) | ||
133 | movel %d0,%sp@(PT_OFF_D0) | save the return value | ||
134 | ret_from_syscall: | ||
135 | |oriw #0x0700,%sr | ||
136 | movew %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0 | ||
137 | jne syscall_exit_work | ||
138 | 1: RESTORE_ALL | ||
139 | |||
140 | syscall_exit_work: | ||
141 | btst #5,%sp@(PT_OFF_SR) | check if returning to kernel | ||
142 | bnes 1b | if so, skip resched, signals | ||
143 | lslw #1,%d0 | ||
144 | jcs do_trace_exit | ||
145 | jmi do_delayed_trace | ||
146 | lslw #8,%d0 | ||
147 | jmi do_signal_return | ||
148 | pea resume_userspace | ||
149 | jra schedule | ||
150 | |||
151 | |||
152 | ENTRY(ret_from_exception) | ||
153 | .Lret_from_exception: | ||
154 | btst #5,%sp@(PT_OFF_SR) | check if returning to kernel | ||
155 | bnes 1f | if so, skip resched, signals | ||
156 | | only allow interrupts when we are really the last one on the | ||
157 | | kernel stack, otherwise stack overflow can occur during | ||
158 | | heavy interrupt load | ||
159 | andw #ALLOWINT,%sr | ||
160 | |||
161 | resume_userspace: | ||
162 | moveb %curptr@(TASK_INFO+TINFO_FLAGS+3),%d0 | ||
163 | jne exit_work | ||
164 | 1: RESTORE_ALL | ||
165 | |||
166 | exit_work: | ||
167 | | save top of frame | ||
168 | movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) | ||
169 | lslb #1,%d0 | ||
170 | jmi do_signal_return | ||
171 | pea resume_userspace | ||
172 | jra schedule | ||
173 | |||
174 | |||
175 | do_signal_return: | ||
176 | |andw #ALLOWINT,%sr | ||
177 | subql #4,%sp | dummy return address | ||
178 | SAVE_SWITCH_STACK | ||
179 | pea %sp@(SWITCH_STACK_SIZE) | ||
180 | bsrl do_signal | ||
181 | addql #4,%sp | ||
182 | RESTORE_SWITCH_STACK | ||
183 | addql #4,%sp | ||
184 | jbra resume_userspace | ||
185 | |||
186 | do_delayed_trace: | ||
187 | bclr #7,%sp@(PT_OFF_SR) | clear trace bit in SR | ||
188 | pea 1 | send SIGTRAP | ||
189 | movel %curptr,%sp@- | ||
190 | pea LSIGTRAP | ||
191 | jbsr send_sig | ||
192 | addql #8,%sp | ||
193 | addql #4,%sp | ||
194 | jbra resume_userspace | ||
195 | |||
196 | |||
197 | /* This is the main interrupt handler for autovector interrupts */ | ||
198 | |||
199 | ENTRY(auto_inthandler) | ||
200 | SAVE_ALL_INT | ||
201 | GET_CURRENT(%d0) | ||
202 | addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
203 | | put exception # in d0 | ||
204 | bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 | ||
205 | subw #VEC_SPUR,%d0 | ||
206 | |||
207 | movel %sp,%sp@- | ||
208 | movel %d0,%sp@- | put vector # on stack | ||
209 | auto_irqhandler_fixup = . + 2 | ||
210 | jsr __m68k_handle_int | process the IRQ | ||
211 | addql #8,%sp | pop parameters off stack | ||
212 | |||
213 | ret_from_interrupt: | ||
214 | subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
215 | jeq ret_from_last_interrupt | ||
216 | 2: RESTORE_ALL | ||
217 | |||
218 | ALIGN | ||
219 | ret_from_last_interrupt: | ||
220 | moveq #(~ALLOWINT>>8)&0xff,%d0 | ||
221 | andb %sp@(PT_OFF_SR),%d0 | ||
222 | jne 2b | ||
223 | |||
224 | /* check if we need to do software interrupts */ | ||
225 | tstl irq_stat+CPUSTAT_SOFTIRQ_PENDING | ||
226 | jeq .Lret_from_exception | ||
227 | pea ret_from_exception | ||
228 | jra do_softirq | ||
229 | |||
230 | /* Handler for user defined interrupt vectors */ | ||
231 | |||
232 | ENTRY(user_inthandler) | ||
233 | SAVE_ALL_INT | ||
234 | GET_CURRENT(%d0) | ||
235 | addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
236 | | put exception # in d0 | ||
237 | bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 | ||
238 | user_irqvec_fixup = . + 2 | ||
239 | subw #VEC_USER,%d0 | ||
240 | |||
241 | movel %sp,%sp@- | ||
242 | movel %d0,%sp@- | put vector # on stack | ||
243 | user_irqhandler_fixup = . + 2 | ||
244 | jsr __m68k_handle_int | process the IRQ | ||
245 | addql #8,%sp | pop parameters off stack | ||
246 | |||
247 | subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
248 | jeq ret_from_last_interrupt | ||
249 | RESTORE_ALL | ||
250 | |||
251 | /* Handler for uninitialized and spurious interrupts */ | ||
252 | |||
253 | ENTRY(bad_inthandler) | ||
254 | SAVE_ALL_INT | ||
255 | GET_CURRENT(%d0) | ||
256 | addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
257 | |||
258 | movel %sp,%sp@- | ||
259 | jsr handle_badint | ||
260 | addql #4,%sp | ||
261 | |||
262 | subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
263 | jeq ret_from_last_interrupt | ||
264 | RESTORE_ALL | ||
265 | |||
266 | |||
267 | ENTRY(sys_fork) | ||
268 | SAVE_SWITCH_STACK | ||
269 | pea %sp@(SWITCH_STACK_SIZE) | ||
270 | jbsr m68k_fork | ||
271 | addql #4,%sp | ||
272 | RESTORE_SWITCH_STACK | ||
273 | rts | ||
274 | |||
275 | ENTRY(sys_clone) | ||
276 | SAVE_SWITCH_STACK | ||
277 | pea %sp@(SWITCH_STACK_SIZE) | ||
278 | jbsr m68k_clone | ||
279 | addql #4,%sp | ||
280 | RESTORE_SWITCH_STACK | ||
281 | rts | ||
282 | |||
283 | ENTRY(sys_vfork) | ||
284 | SAVE_SWITCH_STACK | ||
285 | pea %sp@(SWITCH_STACK_SIZE) | ||
286 | jbsr m68k_vfork | ||
287 | addql #4,%sp | ||
288 | RESTORE_SWITCH_STACK | ||
289 | rts | ||
290 | |||
291 | ENTRY(sys_sigreturn) | ||
292 | SAVE_SWITCH_STACK | ||
293 | jbsr do_sigreturn | ||
294 | RESTORE_SWITCH_STACK | ||
295 | rts | ||
296 | |||
297 | ENTRY(sys_rt_sigreturn) | ||
298 | SAVE_SWITCH_STACK | ||
299 | jbsr do_rt_sigreturn | ||
300 | RESTORE_SWITCH_STACK | ||
301 | rts | ||
302 | |||
303 | resume: | ||
304 | /* | ||
305 | * Beware - when entering resume, prev (the current task) is | ||
306 | * in a0, next (the new task) is in a1,so don't change these | ||
307 | * registers until their contents are no longer needed. | ||
308 | */ | ||
309 | |||
310 | /* save sr */ | ||
311 | movew %sr,%a0@(TASK_THREAD+THREAD_SR) | ||
312 | |||
313 | /* save fs (sfc,%dfc) (may be pointing to kernel memory) */ | ||
314 | movec %sfc,%d0 | ||
315 | movew %d0,%a0@(TASK_THREAD+THREAD_FS) | ||
316 | |||
317 | /* save usp */ | ||
318 | /* it is better to use a movel here instead of a movew 8*) */ | ||
319 | movec %usp,%d0 | ||
320 | movel %d0,%a0@(TASK_THREAD+THREAD_USP) | ||
321 | |||
322 | /* save non-scratch registers on stack */ | ||
323 | SAVE_SWITCH_STACK | ||
324 | |||
325 | /* save current kernel stack pointer */ | ||
326 | movel %sp,%a0@(TASK_THREAD+THREAD_KSP) | ||
327 | |||
328 | /* save floating point context */ | ||
329 | #ifndef CONFIG_M68KFPU_EMU_ONLY | ||
330 | #ifdef CONFIG_M68KFPU_EMU | ||
331 | tstl m68k_fputype | ||
332 | jeq 3f | ||
333 | #endif | ||
334 | fsave %a0@(TASK_THREAD+THREAD_FPSTATE) | ||
335 | |||
336 | #if defined(CONFIG_M68060) | ||
337 | #if !defined(CPU_M68060_ONLY) | ||
338 | btst #3,m68k_cputype+3 | ||
339 | beqs 1f | ||
340 | #endif | ||
341 | /* The 060 FPU keeps status in bits 15-8 of the first longword */ | ||
342 | tstb %a0@(TASK_THREAD+THREAD_FPSTATE+2) | ||
343 | jeq 3f | ||
344 | #if !defined(CPU_M68060_ONLY) | ||
345 | jra 2f | ||
346 | #endif | ||
347 | #endif /* CONFIG_M68060 */ | ||
348 | #if !defined(CPU_M68060_ONLY) | ||
349 | 1: tstb %a0@(TASK_THREAD+THREAD_FPSTATE) | ||
350 | jeq 3f | ||
351 | #endif | ||
352 | 2: fmovemx %fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG) | ||
353 | fmoveml %fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL) | ||
354 | 3: | ||
355 | #endif /* CONFIG_M68KFPU_EMU_ONLY */ | ||
356 | /* Return previous task in %d1 */ | ||
357 | movel %curptr,%d1 | ||
358 | |||
359 | /* switch to new task (a1 contains new task) */ | ||
360 | movel %a1,%curptr | ||
361 | |||
362 | /* restore floating point context */ | ||
363 | #ifndef CONFIG_M68KFPU_EMU_ONLY | ||
364 | #ifdef CONFIG_M68KFPU_EMU | ||
365 | tstl m68k_fputype | ||
366 | jeq 4f | ||
367 | #endif | ||
368 | #if defined(CONFIG_M68060) | ||
369 | #if !defined(CPU_M68060_ONLY) | ||
370 | btst #3,m68k_cputype+3 | ||
371 | beqs 1f | ||
372 | #endif | ||
373 | /* The 060 FPU keeps status in bits 15-8 of the first longword */ | ||
374 | tstb %a1@(TASK_THREAD+THREAD_FPSTATE+2) | ||
375 | jeq 3f | ||
376 | #if !defined(CPU_M68060_ONLY) | ||
377 | jra 2f | ||
378 | #endif | ||
379 | #endif /* CONFIG_M68060 */ | ||
380 | #if !defined(CPU_M68060_ONLY) | ||
381 | 1: tstb %a1@(TASK_THREAD+THREAD_FPSTATE) | ||
382 | jeq 3f | ||
383 | #endif | ||
384 | 2: fmovemx %a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7 | ||
385 | fmoveml %a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar | ||
386 | 3: frestore %a1@(TASK_THREAD+THREAD_FPSTATE) | ||
387 | 4: | ||
388 | #endif /* CONFIG_M68KFPU_EMU_ONLY */ | ||
389 | |||
390 | /* restore the kernel stack pointer */ | ||
391 | movel %a1@(TASK_THREAD+THREAD_KSP),%sp | ||
392 | |||
393 | /* restore non-scratch registers */ | ||
394 | RESTORE_SWITCH_STACK | ||
395 | |||
396 | /* restore user stack pointer */ | ||
397 | movel %a1@(TASK_THREAD+THREAD_USP),%a0 | ||
398 | movel %a0,%usp | ||
399 | |||
400 | /* restore fs (sfc,%dfc) */ | ||
401 | movew %a1@(TASK_THREAD+THREAD_FS),%a0 | ||
402 | movec %a0,%sfc | ||
403 | movec %a0,%dfc | ||
404 | |||
405 | /* restore status register */ | ||
406 | movew %a1@(TASK_THREAD+THREAD_SR),%sr | ||
407 | |||
408 | rts | ||
409 | |||
410 | .data | ||
411 | ALIGN | ||
412 | sys_call_table: | ||
413 | .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ | ||
414 | .long sys_exit | ||
415 | .long sys_fork | ||
416 | .long sys_read | ||
417 | .long sys_write | ||
418 | .long sys_open /* 5 */ | ||
419 | .long sys_close | ||
420 | .long sys_waitpid | ||
421 | .long sys_creat | ||
422 | .long sys_link | ||
423 | .long sys_unlink /* 10 */ | ||
424 | .long sys_execve | ||
425 | .long sys_chdir | ||
426 | .long sys_time | ||
427 | .long sys_mknod | ||
428 | .long sys_chmod /* 15 */ | ||
429 | .long sys_chown16 | ||
430 | .long sys_ni_syscall /* old break syscall holder */ | ||
431 | .long sys_stat | ||
432 | .long sys_lseek | ||
433 | .long sys_getpid /* 20 */ | ||
434 | .long sys_mount | ||
435 | .long sys_oldumount | ||
436 | .long sys_setuid16 | ||
437 | .long sys_getuid16 | ||
438 | .long sys_stime /* 25 */ | ||
439 | .long sys_ptrace | ||
440 | .long sys_alarm | ||
441 | .long sys_fstat | ||
442 | .long sys_pause | ||
443 | .long sys_utime /* 30 */ | ||
444 | .long sys_ni_syscall /* old stty syscall holder */ | ||
445 | .long sys_ni_syscall /* old gtty syscall holder */ | ||
446 | .long sys_access | ||
447 | .long sys_nice | ||
448 | .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ | ||
449 | .long sys_sync | ||
450 | .long sys_kill | ||
451 | .long sys_rename | ||
452 | .long sys_mkdir | ||
453 | .long sys_rmdir /* 40 */ | ||
454 | .long sys_dup | ||
455 | .long sys_pipe | ||
456 | .long sys_times | ||
457 | .long sys_ni_syscall /* old prof syscall holder */ | ||
458 | .long sys_brk /* 45 */ | ||
459 | .long sys_setgid16 | ||
460 | .long sys_getgid16 | ||
461 | .long sys_signal | ||
462 | .long sys_geteuid16 | ||
463 | .long sys_getegid16 /* 50 */ | ||
464 | .long sys_acct | ||
465 | .long sys_umount /* recycled never used phys() */ | ||
466 | .long sys_ni_syscall /* old lock syscall holder */ | ||
467 | .long sys_ioctl | ||
468 | .long sys_fcntl /* 55 */ | ||
469 | .long sys_ni_syscall /* old mpx syscall holder */ | ||
470 | .long sys_setpgid | ||
471 | .long sys_ni_syscall /* old ulimit syscall holder */ | ||
472 | .long sys_ni_syscall | ||
473 | .long sys_umask /* 60 */ | ||
474 | .long sys_chroot | ||
475 | .long sys_ustat | ||
476 | .long sys_dup2 | ||
477 | .long sys_getppid | ||
478 | .long sys_getpgrp /* 65 */ | ||
479 | .long sys_setsid | ||
480 | .long sys_sigaction | ||
481 | .long sys_sgetmask | ||
482 | .long sys_ssetmask | ||
483 | .long sys_setreuid16 /* 70 */ | ||
484 | .long sys_setregid16 | ||
485 | .long sys_sigsuspend | ||
486 | .long sys_sigpending | ||
487 | .long sys_sethostname | ||
488 | .long sys_setrlimit /* 75 */ | ||
489 | .long sys_old_getrlimit | ||
490 | .long sys_getrusage | ||
491 | .long sys_gettimeofday | ||
492 | .long sys_settimeofday | ||
493 | .long sys_getgroups16 /* 80 */ | ||
494 | .long sys_setgroups16 | ||
495 | .long sys_old_select | ||
496 | .long sys_symlink | ||
497 | .long sys_lstat | ||
498 | .long sys_readlink /* 85 */ | ||
499 | .long sys_uselib | ||
500 | .long sys_swapon | ||
501 | .long sys_reboot | ||
502 | .long sys_old_readdir | ||
503 | .long sys_old_mmap /* 90 */ | ||
504 | .long sys_munmap | ||
505 | .long sys_truncate | ||
506 | .long sys_ftruncate | ||
507 | .long sys_fchmod | ||
508 | .long sys_fchown16 /* 95 */ | ||
509 | .long sys_getpriority | ||
510 | .long sys_setpriority | ||
511 | .long sys_ni_syscall /* old profil syscall holder */ | ||
512 | .long sys_statfs | ||
513 | .long sys_fstatfs /* 100 */ | ||
514 | .long sys_ni_syscall /* ioperm for i386 */ | ||
515 | .long sys_socketcall | ||
516 | .long sys_syslog | ||
517 | .long sys_setitimer | ||
518 | .long sys_getitimer /* 105 */ | ||
519 | .long sys_newstat | ||
520 | .long sys_newlstat | ||
521 | .long sys_newfstat | ||
522 | .long sys_ni_syscall | ||
523 | .long sys_ni_syscall /* 110 */ /* iopl for i386 */ | ||
524 | .long sys_vhangup | ||
525 | .long sys_ni_syscall /* obsolete idle() syscall */ | ||
526 | .long sys_ni_syscall /* vm86old for i386 */ | ||
527 | .long sys_wait4 | ||
528 | .long sys_swapoff /* 115 */ | ||
529 | .long sys_sysinfo | ||
530 | .long sys_ipc | ||
531 | .long sys_fsync | ||
532 | .long sys_sigreturn | ||
533 | .long sys_clone /* 120 */ | ||
534 | .long sys_setdomainname | ||
535 | .long sys_newuname | ||
536 | .long sys_cacheflush /* modify_ldt for i386 */ | ||
537 | .long sys_adjtimex | ||
538 | .long sys_mprotect /* 125 */ | ||
539 | .long sys_sigprocmask | ||
540 | .long sys_ni_syscall /* old "create_module" */ | ||
541 | .long sys_init_module | ||
542 | .long sys_delete_module | ||
543 | .long sys_ni_syscall /* 130 - old "get_kernel_syms" */ | ||
544 | .long sys_quotactl | ||
545 | .long sys_getpgid | ||
546 | .long sys_fchdir | ||
547 | .long sys_bdflush | ||
548 | .long sys_sysfs /* 135 */ | ||
549 | .long sys_personality | ||
550 | .long sys_ni_syscall /* for afs_syscall */ | ||
551 | .long sys_setfsuid16 | ||
552 | .long sys_setfsgid16 | ||
553 | .long sys_llseek /* 140 */ | ||
554 | .long sys_getdents | ||
555 | .long sys_select | ||
556 | .long sys_flock | ||
557 | .long sys_msync | ||
558 | .long sys_readv /* 145 */ | ||
559 | .long sys_writev | ||
560 | .long sys_getsid | ||
561 | .long sys_fdatasync | ||
562 | .long sys_sysctl | ||
563 | .long sys_mlock /* 150 */ | ||
564 | .long sys_munlock | ||
565 | .long sys_mlockall | ||
566 | .long sys_munlockall | ||
567 | .long sys_sched_setparam | ||
568 | .long sys_sched_getparam /* 155 */ | ||
569 | .long sys_sched_setscheduler | ||
570 | .long sys_sched_getscheduler | ||
571 | .long sys_sched_yield | ||
572 | .long sys_sched_get_priority_max | ||
573 | .long sys_sched_get_priority_min /* 160 */ | ||
574 | .long sys_sched_rr_get_interval | ||
575 | .long sys_nanosleep | ||
576 | .long sys_mremap | ||
577 | .long sys_setresuid16 | ||
578 | .long sys_getresuid16 /* 165 */ | ||
579 | .long sys_getpagesize | ||
580 | .long sys_ni_syscall /* old sys_query_module */ | ||
581 | .long sys_poll | ||
582 | .long sys_nfsservctl | ||
583 | .long sys_setresgid16 /* 170 */ | ||
584 | .long sys_getresgid16 | ||
585 | .long sys_prctl | ||
586 | .long sys_rt_sigreturn | ||
587 | .long sys_rt_sigaction | ||
588 | .long sys_rt_sigprocmask /* 175 */ | ||
589 | .long sys_rt_sigpending | ||
590 | .long sys_rt_sigtimedwait | ||
591 | .long sys_rt_sigqueueinfo | ||
592 | .long sys_rt_sigsuspend | ||
593 | .long sys_pread64 /* 180 */ | ||
594 | .long sys_pwrite64 | ||
595 | .long sys_lchown16; | ||
596 | .long sys_getcwd | ||
597 | .long sys_capget | ||
598 | .long sys_capset /* 185 */ | ||
599 | .long sys_sigaltstack | ||
600 | .long sys_sendfile | ||
601 | .long sys_ni_syscall /* streams1 */ | ||
602 | .long sys_ni_syscall /* streams2 */ | ||
603 | .long sys_vfork /* 190 */ | ||
604 | .long sys_getrlimit | ||
605 | .long sys_mmap2 | ||
606 | .long sys_truncate64 | ||
607 | .long sys_ftruncate64 | ||
608 | .long sys_stat64 /* 195 */ | ||
609 | .long sys_lstat64 | ||
610 | .long sys_fstat64 | ||
611 | .long sys_chown | ||
612 | .long sys_getuid | ||
613 | .long sys_getgid /* 200 */ | ||
614 | .long sys_geteuid | ||
615 | .long sys_getegid | ||
616 | .long sys_setreuid | ||
617 | .long sys_setregid | ||
618 | .long sys_getgroups /* 205 */ | ||
619 | .long sys_setgroups | ||
620 | .long sys_fchown | ||
621 | .long sys_setresuid | ||
622 | .long sys_getresuid | ||
623 | .long sys_setresgid /* 210 */ | ||
624 | .long sys_getresgid | ||
625 | .long sys_lchown | ||
626 | .long sys_setuid | ||
627 | .long sys_setgid | ||
628 | .long sys_setfsuid /* 215 */ | ||
629 | .long sys_setfsgid | ||
630 | .long sys_pivot_root | ||
631 | .long sys_ni_syscall | ||
632 | .long sys_ni_syscall | ||
633 | .long sys_getdents64 /* 220 */ | ||
634 | .long sys_gettid | ||
635 | .long sys_tkill | ||
636 | .long sys_setxattr | ||
637 | .long sys_lsetxattr | ||
638 | .long sys_fsetxattr /* 225 */ | ||
639 | .long sys_getxattr | ||
640 | .long sys_lgetxattr | ||
641 | .long sys_fgetxattr | ||
642 | .long sys_listxattr | ||
643 | .long sys_llistxattr /* 230 */ | ||
644 | .long sys_flistxattr | ||
645 | .long sys_removexattr | ||
646 | .long sys_lremovexattr | ||
647 | .long sys_fremovexattr | ||
648 | .long sys_futex /* 235 */ | ||
649 | .long sys_sendfile64 | ||
650 | .long sys_mincore | ||
651 | .long sys_madvise | ||
652 | .long sys_fcntl64 | ||
653 | .long sys_readahead /* 240 */ | ||
654 | .long sys_io_setup | ||
655 | .long sys_io_destroy | ||
656 | .long sys_io_getevents | ||
657 | .long sys_io_submit | ||
658 | .long sys_io_cancel /* 245 */ | ||
659 | .long sys_fadvise64 | ||
660 | .long sys_exit_group | ||
661 | .long sys_lookup_dcookie | ||
662 | .long sys_epoll_create | ||
663 | .long sys_epoll_ctl /* 250 */ | ||
664 | .long sys_epoll_wait | ||
665 | .long sys_remap_file_pages | ||
666 | .long sys_set_tid_address | ||
667 | .long sys_timer_create | ||
668 | .long sys_timer_settime /* 255 */ | ||
669 | .long sys_timer_gettime | ||
670 | .long sys_timer_getoverrun | ||
671 | .long sys_timer_delete | ||
672 | .long sys_clock_settime | ||
673 | .long sys_clock_gettime /* 260 */ | ||
674 | .long sys_clock_getres | ||
675 | .long sys_clock_nanosleep | ||
676 | .long sys_statfs64 | ||
677 | .long sys_fstatfs64 | ||
678 | .long sys_tgkill /* 265 */ | ||
679 | .long sys_utimes | ||
680 | .long sys_fadvise64_64 | ||
681 | .long sys_mbind | ||
682 | .long sys_get_mempolicy | ||
683 | .long sys_set_mempolicy /* 270 */ | ||
684 | .long sys_mq_open | ||
685 | .long sys_mq_unlink | ||
686 | .long sys_mq_timedsend | ||
687 | .long sys_mq_timedreceive | ||
688 | .long sys_mq_notify /* 275 */ | ||
689 | .long sys_mq_getsetattr | ||
690 | .long sys_waitid | ||
691 | .long sys_ni_syscall /* for sys_vserver */ | ||
692 | .long sys_add_key | ||
693 | .long sys_request_key /* 280 */ | ||
694 | .long sys_keyctl | ||
695 | .long sys_ioprio_set | ||
696 | .long sys_ioprio_get | ||
697 | .long sys_inotify_init | ||
698 | .long sys_inotify_add_watch /* 285 */ | ||
699 | .long sys_inotify_rm_watch | ||
700 | .long sys_migrate_pages | ||
701 | .long sys_openat | ||
702 | .long sys_mkdirat | ||
703 | .long sys_mknodat /* 290 */ | ||
704 | .long sys_fchownat | ||
705 | .long sys_futimesat | ||
706 | .long sys_fstatat64 | ||
707 | .long sys_unlinkat | ||
708 | .long sys_renameat /* 295 */ | ||
709 | .long sys_linkat | ||
710 | .long sys_symlinkat | ||
711 | .long sys_readlinkat | ||
712 | .long sys_fchmodat | ||
713 | .long sys_faccessat /* 300 */ | ||
714 | .long sys_ni_syscall /* Reserved for pselect6 */ | ||
715 | .long sys_ni_syscall /* Reserved for ppoll */ | ||
716 | .long sys_unshare | ||
717 | .long sys_set_robust_list | ||
718 | .long sys_get_robust_list /* 305 */ | ||
719 | .long sys_splice | ||
720 | .long sys_sync_file_range | ||
721 | .long sys_tee | ||
722 | .long sys_vmsplice | ||
723 | .long sys_move_pages /* 310 */ | ||
724 | .long sys_sched_setaffinity | ||
725 | .long sys_sched_getaffinity | ||
726 | .long sys_kexec_load | ||
727 | .long sys_getcpu | ||
728 | .long sys_epoll_pwait /* 315 */ | ||
729 | .long sys_utimensat | ||
730 | .long sys_signalfd | ||
731 | .long sys_timerfd_create | ||
732 | .long sys_eventfd | ||
733 | .long sys_fallocate /* 320 */ | ||
734 | .long sys_timerfd_settime | ||
735 | .long sys_timerfd_gettime | ||
736 | .long sys_signalfd4 | ||
737 | .long sys_eventfd2 | ||
738 | .long sys_epoll_create1 /* 325 */ | ||
739 | .long sys_dup3 | ||
740 | .long sys_pipe2 | ||
741 | .long sys_inotify_init1 | ||
742 | .long sys_preadv | ||
743 | .long sys_pwritev /* 330 */ | ||
744 | .long sys_rt_tgsigqueueinfo | ||
745 | .long sys_perf_event_open | ||
746 | .long sys_get_thread_area | ||
747 | .long sys_set_thread_area | ||
748 | .long sys_atomic_cmpxchg_32 /* 335 */ | ||
749 | .long sys_atomic_barrier | ||
750 | .long sys_fanotify_init | ||
751 | .long sys_fanotify_mark | ||
752 | .long sys_prlimit64 | ||
753 | |||
diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S new file mode 100644 index 000000000000..1559dea36e55 --- /dev/null +++ b/arch/m68k/kernel/entry_mm.S | |||
@@ -0,0 +1,753 @@ | |||
1 | /* -*- mode: asm -*- | ||
2 | * | ||
3 | * linux/arch/m68k/kernel/entry.S | ||
4 | * | ||
5 | * Copyright (C) 1991, 1992 Linus Torvalds | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General Public | ||
8 | * License. See the file README.legal in the main directory of this archive | ||
9 | * for more details. | ||
10 | * | ||
11 | * Linux/m68k support by Hamish Macdonald | ||
12 | * | ||
13 | * 68060 fixes by Jesper Skov | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | /* | ||
18 | * entry.S contains the system-call and fault low-level handling routines. | ||
19 | * This also contains the timer-interrupt handler, as well as all interrupts | ||
20 | * and faults that can result in a task-switch. | ||
21 | * | ||
22 | * NOTE: This code handles signal-recognition, which happens every time | ||
23 | * after a timer-interrupt and after each system call. | ||
24 | * | ||
25 | */ | ||
26 | |||
27 | /* | ||
28 | * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so | ||
29 | * all pointers that used to be 'current' are now entry | ||
30 | * number 0 in the 'current_set' list. | ||
31 | * | ||
32 | * 6/05/00 RZ: addedd writeback completion after return from sighandler | ||
33 | * for 68040 | ||
34 | */ | ||
35 | |||
36 | #include <linux/linkage.h> | ||
37 | #include <asm/entry.h> | ||
38 | #include <asm/errno.h> | ||
39 | #include <asm/setup.h> | ||
40 | #include <asm/segment.h> | ||
41 | #include <asm/traps.h> | ||
42 | #include <asm/unistd.h> | ||
43 | |||
44 | #include <asm/asm-offsets.h> | ||
45 | |||
46 | .globl system_call, buserr, trap, resume | ||
47 | .globl sys_call_table | ||
48 | .globl sys_fork, sys_clone, sys_vfork | ||
49 | .globl ret_from_interrupt, bad_interrupt | ||
50 | .globl auto_irqhandler_fixup | ||
51 | .globl user_irqvec_fixup, user_irqhandler_fixup | ||
52 | |||
53 | .text | ||
54 | ENTRY(buserr) | ||
55 | SAVE_ALL_INT | ||
56 | GET_CURRENT(%d0) | ||
57 | movel %sp,%sp@- | stack frame pointer argument | ||
58 | bsrl buserr_c | ||
59 | addql #4,%sp | ||
60 | jra .Lret_from_exception | ||
61 | |||
62 | ENTRY(trap) | ||
63 | SAVE_ALL_INT | ||
64 | GET_CURRENT(%d0) | ||
65 | movel %sp,%sp@- | stack frame pointer argument | ||
66 | bsrl trap_c | ||
67 | addql #4,%sp | ||
68 | jra .Lret_from_exception | ||
69 | |||
70 | | After a fork we jump here directly from resume, | ||
71 | | so that %d1 contains the previous task | ||
72 | | schedule_tail now used regardless of CONFIG_SMP | ||
73 | ENTRY(ret_from_fork) | ||
74 | movel %d1,%sp@- | ||
75 | jsr schedule_tail | ||
76 | addql #4,%sp | ||
77 | jra .Lret_from_exception | ||
78 | |||
79 | do_trace_entry: | ||
80 | movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace | ||
81 | subql #4,%sp | ||
82 | SAVE_SWITCH_STACK | ||
83 | jbsr syscall_trace | ||
84 | RESTORE_SWITCH_STACK | ||
85 | addql #4,%sp | ||
86 | movel %sp@(PT_OFF_ORIG_D0),%d0 | ||
87 | cmpl #NR_syscalls,%d0 | ||
88 | jcs syscall | ||
89 | badsys: | ||
90 | movel #-ENOSYS,%sp@(PT_OFF_D0) | ||
91 | jra ret_from_syscall | ||
92 | |||
93 | do_trace_exit: | ||
94 | subql #4,%sp | ||
95 | SAVE_SWITCH_STACK | ||
96 | jbsr syscall_trace | ||
97 | RESTORE_SWITCH_STACK | ||
98 | addql #4,%sp | ||
99 | jra .Lret_from_exception | ||
100 | |||
101 | ENTRY(ret_from_signal) | ||
102 | tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) | ||
103 | jge 1f | ||
104 | jbsr syscall_trace | ||
105 | 1: RESTORE_SWITCH_STACK | ||
106 | addql #4,%sp | ||
107 | /* on 68040 complete pending writebacks if any */ | ||
108 | #ifdef CONFIG_M68040 | ||
109 | bfextu %sp@(PT_OFF_FORMATVEC){#0,#4},%d0 | ||
110 | subql #7,%d0 | bus error frame ? | ||
111 | jbne 1f | ||
112 | movel %sp,%sp@- | ||
113 | jbsr berr_040cleanup | ||
114 | addql #4,%sp | ||
115 | 1: | ||
116 | #endif | ||
117 | jra .Lret_from_exception | ||
118 | |||
119 | ENTRY(system_call) | ||
120 | SAVE_ALL_SYS | ||
121 | |||
122 | GET_CURRENT(%d1) | ||
123 | | save top of frame | ||
124 | movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) | ||
125 | |||
126 | | syscall trace? | ||
127 | tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) | ||
128 | jmi do_trace_entry | ||
129 | cmpl #NR_syscalls,%d0 | ||
130 | jcc badsys | ||
131 | syscall: | ||
132 | jbsr @(sys_call_table,%d0:l:4)@(0) | ||
133 | movel %d0,%sp@(PT_OFF_D0) | save the return value | ||
134 | ret_from_syscall: | ||
135 | |oriw #0x0700,%sr | ||
136 | movew %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0 | ||
137 | jne syscall_exit_work | ||
138 | 1: RESTORE_ALL | ||
139 | |||
140 | syscall_exit_work: | ||
141 | btst #5,%sp@(PT_OFF_SR) | check if returning to kernel | ||
142 | bnes 1b | if so, skip resched, signals | ||
143 | lslw #1,%d0 | ||
144 | jcs do_trace_exit | ||
145 | jmi do_delayed_trace | ||
146 | lslw #8,%d0 | ||
147 | jmi do_signal_return | ||
148 | pea resume_userspace | ||
149 | jra schedule | ||
150 | |||
151 | |||
152 | ENTRY(ret_from_exception) | ||
153 | .Lret_from_exception: | ||
154 | btst #5,%sp@(PT_OFF_SR) | check if returning to kernel | ||
155 | bnes 1f | if so, skip resched, signals | ||
156 | | only allow interrupts when we are really the last one on the | ||
157 | | kernel stack, otherwise stack overflow can occur during | ||
158 | | heavy interrupt load | ||
159 | andw #ALLOWINT,%sr | ||
160 | |||
161 | resume_userspace: | ||
162 | moveb %curptr@(TASK_INFO+TINFO_FLAGS+3),%d0 | ||
163 | jne exit_work | ||
164 | 1: RESTORE_ALL | ||
165 | |||
166 | exit_work: | ||
167 | | save top of frame | ||
168 | movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) | ||
169 | lslb #1,%d0 | ||
170 | jmi do_signal_return | ||
171 | pea resume_userspace | ||
172 | jra schedule | ||
173 | |||
174 | |||
175 | do_signal_return: | ||
176 | |andw #ALLOWINT,%sr | ||
177 | subql #4,%sp | dummy return address | ||
178 | SAVE_SWITCH_STACK | ||
179 | pea %sp@(SWITCH_STACK_SIZE) | ||
180 | bsrl do_signal | ||
181 | addql #4,%sp | ||
182 | RESTORE_SWITCH_STACK | ||
183 | addql #4,%sp | ||
184 | jbra resume_userspace | ||
185 | |||
186 | do_delayed_trace: | ||
187 | bclr #7,%sp@(PT_OFF_SR) | clear trace bit in SR | ||
188 | pea 1 | send SIGTRAP | ||
189 | movel %curptr,%sp@- | ||
190 | pea LSIGTRAP | ||
191 | jbsr send_sig | ||
192 | addql #8,%sp | ||
193 | addql #4,%sp | ||
194 | jbra resume_userspace | ||
195 | |||
196 | |||
197 | /* This is the main interrupt handler for autovector interrupts */ | ||
198 | |||
199 | ENTRY(auto_inthandler) | ||
200 | SAVE_ALL_INT | ||
201 | GET_CURRENT(%d0) | ||
202 | addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
203 | | put exception # in d0 | ||
204 | bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 | ||
205 | subw #VEC_SPUR,%d0 | ||
206 | |||
207 | movel %sp,%sp@- | ||
208 | movel %d0,%sp@- | put vector # on stack | ||
209 | auto_irqhandler_fixup = . + 2 | ||
210 | jsr __m68k_handle_int | process the IRQ | ||
211 | addql #8,%sp | pop parameters off stack | ||
212 | |||
213 | ret_from_interrupt: | ||
214 | subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
215 | jeq ret_from_last_interrupt | ||
216 | 2: RESTORE_ALL | ||
217 | |||
218 | ALIGN | ||
219 | ret_from_last_interrupt: | ||
220 | moveq #(~ALLOWINT>>8)&0xff,%d0 | ||
221 | andb %sp@(PT_OFF_SR),%d0 | ||
222 | jne 2b | ||
223 | |||
224 | /* check if we need to do software interrupts */ | ||
225 | tstl irq_stat+CPUSTAT_SOFTIRQ_PENDING | ||
226 | jeq .Lret_from_exception | ||
227 | pea ret_from_exception | ||
228 | jra do_softirq | ||
229 | |||
230 | /* Handler for user defined interrupt vectors */ | ||
231 | |||
232 | ENTRY(user_inthandler) | ||
233 | SAVE_ALL_INT | ||
234 | GET_CURRENT(%d0) | ||
235 | addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
236 | | put exception # in d0 | ||
237 | bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 | ||
238 | user_irqvec_fixup = . + 2 | ||
239 | subw #VEC_USER,%d0 | ||
240 | |||
241 | movel %sp,%sp@- | ||
242 | movel %d0,%sp@- | put vector # on stack | ||
243 | user_irqhandler_fixup = . + 2 | ||
244 | jsr __m68k_handle_int | process the IRQ | ||
245 | addql #8,%sp | pop parameters off stack | ||
246 | |||
247 | subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
248 | jeq ret_from_last_interrupt | ||
249 | RESTORE_ALL | ||
250 | |||
251 | /* Handler for uninitialized and spurious interrupts */ | ||
252 | |||
253 | ENTRY(bad_inthandler) | ||
254 | SAVE_ALL_INT | ||
255 | GET_CURRENT(%d0) | ||
256 | addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
257 | |||
258 | movel %sp,%sp@- | ||
259 | jsr handle_badint | ||
260 | addql #4,%sp | ||
261 | |||
262 | subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) | ||
263 | jeq ret_from_last_interrupt | ||
264 | RESTORE_ALL | ||
265 | |||
266 | |||
267 | ENTRY(sys_fork) | ||
268 | SAVE_SWITCH_STACK | ||
269 | pea %sp@(SWITCH_STACK_SIZE) | ||
270 | jbsr m68k_fork | ||
271 | addql #4,%sp | ||
272 | RESTORE_SWITCH_STACK | ||
273 | rts | ||
274 | |||
275 | ENTRY(sys_clone) | ||
276 | SAVE_SWITCH_STACK | ||
277 | pea %sp@(SWITCH_STACK_SIZE) | ||
278 | jbsr m68k_clone | ||
279 | addql #4,%sp | ||
280 | RESTORE_SWITCH_STACK | ||
281 | rts | ||
282 | |||
283 | ENTRY(sys_vfork) | ||
284 | SAVE_SWITCH_STACK | ||
285 | pea %sp@(SWITCH_STACK_SIZE) | ||
286 | jbsr m68k_vfork | ||
287 | addql #4,%sp | ||
288 | RESTORE_SWITCH_STACK | ||
289 | rts | ||
290 | |||
291 | ENTRY(sys_sigreturn) | ||
292 | SAVE_SWITCH_STACK | ||
293 | jbsr do_sigreturn | ||
294 | RESTORE_SWITCH_STACK | ||
295 | rts | ||
296 | |||
297 | ENTRY(sys_rt_sigreturn) | ||
298 | SAVE_SWITCH_STACK | ||
299 | jbsr do_rt_sigreturn | ||
300 | RESTORE_SWITCH_STACK | ||
301 | rts | ||
302 | |||
303 | resume: | ||
304 | /* | ||
305 | * Beware - when entering resume, prev (the current task) is | ||
306 | * in a0, next (the new task) is in a1,so don't change these | ||
307 | * registers until their contents are no longer needed. | ||
308 | */ | ||
309 | |||
310 | /* save sr */ | ||
311 | movew %sr,%a0@(TASK_THREAD+THREAD_SR) | ||
312 | |||
313 | /* save fs (sfc,%dfc) (may be pointing to kernel memory) */ | ||
314 | movec %sfc,%d0 | ||
315 | movew %d0,%a0@(TASK_THREAD+THREAD_FS) | ||
316 | |||
317 | /* save usp */ | ||
318 | /* it is better to use a movel here instead of a movew 8*) */ | ||
319 | movec %usp,%d0 | ||
320 | movel %d0,%a0@(TASK_THREAD+THREAD_USP) | ||
321 | |||
322 | /* save non-scratch registers on stack */ | ||
323 | SAVE_SWITCH_STACK | ||
324 | |||
325 | /* save current kernel stack pointer */ | ||
326 | movel %sp,%a0@(TASK_THREAD+THREAD_KSP) | ||
327 | |||
328 | /* save floating point context */ | ||
329 | #ifndef CONFIG_M68KFPU_EMU_ONLY | ||
330 | #ifdef CONFIG_M68KFPU_EMU | ||
331 | tstl m68k_fputype | ||
332 | jeq 3f | ||
333 | #endif | ||
334 | fsave %a0@(TASK_THREAD+THREAD_FPSTATE) | ||
335 | |||
336 | #if defined(CONFIG_M68060) | ||
337 | #if !defined(CPU_M68060_ONLY) | ||
338 | btst #3,m68k_cputype+3 | ||
339 | beqs 1f | ||
340 | #endif | ||
341 | /* The 060 FPU keeps status in bits 15-8 of the first longword */ | ||
342 | tstb %a0@(TASK_THREAD+THREAD_FPSTATE+2) | ||
343 | jeq 3f | ||
344 | #if !defined(CPU_M68060_ONLY) | ||
345 | jra 2f | ||
346 | #endif | ||
347 | #endif /* CONFIG_M68060 */ | ||
348 | #if !defined(CPU_M68060_ONLY) | ||
349 | 1: tstb %a0@(TASK_THREAD+THREAD_FPSTATE) | ||
350 | jeq 3f | ||
351 | #endif | ||
352 | 2: fmovemx %fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG) | ||
353 | fmoveml %fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL) | ||
354 | 3: | ||
355 | #endif /* CONFIG_M68KFPU_EMU_ONLY */ | ||
356 | /* Return previous task in %d1 */ | ||
357 | movel %curptr,%d1 | ||
358 | |||
359 | /* switch to new task (a1 contains new task) */ | ||
360 | movel %a1,%curptr | ||
361 | |||
362 | /* restore floating point context */ | ||
363 | #ifndef CONFIG_M68KFPU_EMU_ONLY | ||
364 | #ifdef CONFIG_M68KFPU_EMU | ||
365 | tstl m68k_fputype | ||
366 | jeq 4f | ||
367 | #endif | ||
368 | #if defined(CONFIG_M68060) | ||
369 | #if !defined(CPU_M68060_ONLY) | ||
370 | btst #3,m68k_cputype+3 | ||
371 | beqs 1f | ||
372 | #endif | ||
373 | /* The 060 FPU keeps status in bits 15-8 of the first longword */ | ||
374 | tstb %a1@(TASK_THREAD+THREAD_FPSTATE+2) | ||
375 | jeq 3f | ||
376 | #if !defined(CPU_M68060_ONLY) | ||
377 | jra 2f | ||
378 | #endif | ||
379 | #endif /* CONFIG_M68060 */ | ||
380 | #if !defined(CPU_M68060_ONLY) | ||
381 | 1: tstb %a1@(TASK_THREAD+THREAD_FPSTATE) | ||
382 | jeq 3f | ||
383 | #endif | ||
384 | 2: fmovemx %a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7 | ||
385 | fmoveml %a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar | ||
386 | 3: frestore %a1@(TASK_THREAD+THREAD_FPSTATE) | ||
387 | 4: | ||
388 | #endif /* CONFIG_M68KFPU_EMU_ONLY */ | ||
389 | |||
390 | /* restore the kernel stack pointer */ | ||
391 | movel %a1@(TASK_THREAD+THREAD_KSP),%sp | ||
392 | |||
393 | /* restore non-scratch registers */ | ||
394 | RESTORE_SWITCH_STACK | ||
395 | |||
396 | /* restore user stack pointer */ | ||
397 | movel %a1@(TASK_THREAD+THREAD_USP),%a0 | ||
398 | movel %a0,%usp | ||
399 | |||
400 | /* restore fs (sfc,%dfc) */ | ||
401 | movew %a1@(TASK_THREAD+THREAD_FS),%a0 | ||
402 | movec %a0,%sfc | ||
403 | movec %a0,%dfc | ||
404 | |||
405 | /* restore status register */ | ||
406 | movew %a1@(TASK_THREAD+THREAD_SR),%sr | ||
407 | |||
408 | rts | ||
409 | |||
410 | .data | ||
411 | ALIGN | ||
412 | sys_call_table: | ||
413 | .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ | ||
414 | .long sys_exit | ||
415 | .long sys_fork | ||
416 | .long sys_read | ||
417 | .long sys_write | ||
418 | .long sys_open /* 5 */ | ||
419 | .long sys_close | ||
420 | .long sys_waitpid | ||
421 | .long sys_creat | ||
422 | .long sys_link | ||
423 | .long sys_unlink /* 10 */ | ||
424 | .long sys_execve | ||
425 | .long sys_chdir | ||
426 | .long sys_time | ||
427 | .long sys_mknod | ||
428 | .long sys_chmod /* 15 */ | ||
429 | .long sys_chown16 | ||
430 | .long sys_ni_syscall /* old break syscall holder */ | ||
431 | .long sys_stat | ||
432 | .long sys_lseek | ||
433 | .long sys_getpid /* 20 */ | ||
434 | .long sys_mount | ||
435 | .long sys_oldumount | ||
436 | .long sys_setuid16 | ||
437 | .long sys_getuid16 | ||
438 | .long sys_stime /* 25 */ | ||
439 | .long sys_ptrace | ||
440 | .long sys_alarm | ||
441 | .long sys_fstat | ||
442 | .long sys_pause | ||
443 | .long sys_utime /* 30 */ | ||
444 | .long sys_ni_syscall /* old stty syscall holder */ | ||
445 | .long sys_ni_syscall /* old gtty syscall holder */ | ||
446 | .long sys_access | ||
447 | .long sys_nice | ||
448 | .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ | ||
449 | .long sys_sync | ||
450 | .long sys_kill | ||
451 | .long sys_rename | ||
452 | .long sys_mkdir | ||
453 | .long sys_rmdir /* 40 */ | ||
454 | .long sys_dup | ||
455 | .long sys_pipe | ||
456 | .long sys_times | ||
457 | .long sys_ni_syscall /* old prof syscall holder */ | ||
458 | .long sys_brk /* 45 */ | ||
459 | .long sys_setgid16 | ||
460 | .long sys_getgid16 | ||
461 | .long sys_signal | ||
462 | .long sys_geteuid16 | ||
463 | .long sys_getegid16 /* 50 */ | ||
464 | .long sys_acct | ||
465 | .long sys_umount /* recycled never used phys() */ | ||
466 | .long sys_ni_syscall /* old lock syscall holder */ | ||
467 | .long sys_ioctl | ||
468 | .long sys_fcntl /* 55 */ | ||
469 | .long sys_ni_syscall /* old mpx syscall holder */ | ||
470 | .long sys_setpgid | ||
471 | .long sys_ni_syscall /* old ulimit syscall holder */ | ||
472 | .long sys_ni_syscall | ||
473 | .long sys_umask /* 60 */ | ||
474 | .long sys_chroot | ||
475 | .long sys_ustat | ||
476 | .long sys_dup2 | ||
477 | .long sys_getppid | ||
478 | .long sys_getpgrp /* 65 */ | ||
479 | .long sys_setsid | ||
480 | .long sys_sigaction | ||
481 | .long sys_sgetmask | ||
482 | .long sys_ssetmask | ||
483 | .long sys_setreuid16 /* 70 */ | ||
484 | .long sys_setregid16 | ||
485 | .long sys_sigsuspend | ||
486 | .long sys_sigpending | ||
487 | .long sys_sethostname | ||
488 | .long sys_setrlimit /* 75 */ | ||
489 | .long sys_old_getrlimit | ||
490 | .long sys_getrusage | ||
491 | .long sys_gettimeofday | ||
492 | .long sys_settimeofday | ||
493 | .long sys_getgroups16 /* 80 */ | ||
494 | .long sys_setgroups16 | ||
495 | .long sys_old_select | ||
496 | .long sys_symlink | ||
497 | .long sys_lstat | ||
498 | .long sys_readlink /* 85 */ | ||
499 | .long sys_uselib | ||
500 | .long sys_swapon | ||
501 | .long sys_reboot | ||
502 | .long sys_old_readdir | ||
503 | .long sys_old_mmap /* 90 */ | ||
504 | .long sys_munmap | ||
505 | .long sys_truncate | ||
506 | .long sys_ftruncate | ||
507 | .long sys_fchmod | ||
508 | .long sys_fchown16 /* 95 */ | ||
509 | .long sys_getpriority | ||
510 | .long sys_setpriority | ||
511 | .long sys_ni_syscall /* old profil syscall holder */ | ||
512 | .long sys_statfs | ||
513 | .long sys_fstatfs /* 100 */ | ||
514 | .long sys_ni_syscall /* ioperm for i386 */ | ||
515 | .long sys_socketcall | ||
516 | .long sys_syslog | ||
517 | .long sys_setitimer | ||
518 | .long sys_getitimer /* 105 */ | ||
519 | .long sys_newstat | ||
520 | .long sys_newlstat | ||
521 | .long sys_newfstat | ||
522 | .long sys_ni_syscall | ||
523 | .long sys_ni_syscall /* 110 */ /* iopl for i386 */ | ||
524 | .long sys_vhangup | ||
525 | .long sys_ni_syscall /* obsolete idle() syscall */ | ||
526 | .long sys_ni_syscall /* vm86old for i386 */ | ||
527 | .long sys_wait4 | ||
528 | .long sys_swapoff /* 115 */ | ||
529 | .long sys_sysinfo | ||
530 | .long sys_ipc | ||
531 | .long sys_fsync | ||
532 | .long sys_sigreturn | ||
533 | .long sys_clone /* 120 */ | ||
534 | .long sys_setdomainname | ||
535 | .long sys_newuname | ||
536 | .long sys_cacheflush /* modify_ldt for i386 */ | ||
537 | .long sys_adjtimex | ||
538 | .long sys_mprotect /* 125 */ | ||
539 | .long sys_sigprocmask | ||
540 | .long sys_ni_syscall /* old "create_module" */ | ||
541 | .long sys_init_module | ||
542 | .long sys_delete_module | ||
543 | .long sys_ni_syscall /* 130 - old "get_kernel_syms" */ | ||
544 | .long sys_quotactl | ||
545 | .long sys_getpgid | ||
546 | .long sys_fchdir | ||
547 | .long sys_bdflush | ||
548 | .long sys_sysfs /* 135 */ | ||
549 | .long sys_personality | ||
550 | .long sys_ni_syscall /* for afs_syscall */ | ||
551 | .long sys_setfsuid16 | ||
552 | .long sys_setfsgid16 | ||
553 | .long sys_llseek /* 140 */ | ||
554 | .long sys_getdents | ||
555 | .long sys_select | ||
556 | .long sys_flock | ||
557 | .long sys_msync | ||
558 | .long sys_readv /* 145 */ | ||
559 | .long sys_writev | ||
560 | .long sys_getsid | ||
561 | .long sys_fdatasync | ||
562 | .long sys_sysctl | ||
563 | .long sys_mlock /* 150 */ | ||
564 | .long sys_munlock | ||
565 | .long sys_mlockall | ||
566 | .long sys_munlockall | ||
567 | .long sys_sched_setparam | ||
568 | .long sys_sched_getparam /* 155 */ | ||
569 | .long sys_sched_setscheduler | ||
570 | .long sys_sched_getscheduler | ||
571 | .long sys_sched_yield | ||
572 | .long sys_sched_get_priority_max | ||
573 | .long sys_sched_get_priority_min /* 160 */ | ||
574 | .long sys_sched_rr_get_interval | ||
575 | .long sys_nanosleep | ||
576 | .long sys_mremap | ||
577 | .long sys_setresuid16 | ||
578 | .long sys_getresuid16 /* 165 */ | ||
579 | .long sys_getpagesize | ||
580 | .long sys_ni_syscall /* old sys_query_module */ | ||
581 | .long sys_poll | ||
582 | .long sys_nfsservctl | ||
583 | .long sys_setresgid16 /* 170 */ | ||
584 | .long sys_getresgid16 | ||
585 | .long sys_prctl | ||
586 | .long sys_rt_sigreturn | ||
587 | .long sys_rt_sigaction | ||
588 | .long sys_rt_sigprocmask /* 175 */ | ||
589 | .long sys_rt_sigpending | ||
590 | .long sys_rt_sigtimedwait | ||
591 | .long sys_rt_sigqueueinfo | ||
592 | .long sys_rt_sigsuspend | ||
593 | .long sys_pread64 /* 180 */ | ||
594 | .long sys_pwrite64 | ||
595 | .long sys_lchown16; | ||
596 | .long sys_getcwd | ||
597 | .long sys_capget | ||
598 | .long sys_capset /* 185 */ | ||
599 | .long sys_sigaltstack | ||
600 | .long sys_sendfile | ||
601 | .long sys_ni_syscall /* streams1 */ | ||
602 | .long sys_ni_syscall /* streams2 */ | ||
603 | .long sys_vfork /* 190 */ | ||
604 | .long sys_getrlimit | ||
605 | .long sys_mmap2 | ||
606 | .long sys_truncate64 | ||
607 | .long sys_ftruncate64 | ||
608 | .long sys_stat64 /* 195 */ | ||
609 | .long sys_lstat64 | ||
610 | .long sys_fstat64 | ||
611 | .long sys_chown | ||
612 | .long sys_getuid | ||
613 | .long sys_getgid /* 200 */ | ||
614 | .long sys_geteuid | ||
615 | .long sys_getegid | ||
616 | .long sys_setreuid | ||
617 | .long sys_setregid | ||
618 | .long sys_getgroups /* 205 */ | ||
619 | .long sys_setgroups | ||
620 | .long sys_fchown | ||
621 | .long sys_setresuid | ||
622 | .long sys_getresuid | ||
623 | .long sys_setresgid /* 210 */ | ||
624 | .long sys_getresgid | ||
625 | .long sys_lchown | ||
626 | .long sys_setuid | ||
627 | .long sys_setgid | ||
628 | .long sys_setfsuid /* 215 */ | ||
629 | .long sys_setfsgid | ||
630 | .long sys_pivot_root | ||
631 | .long sys_ni_syscall | ||
632 | .long sys_ni_syscall | ||
633 | .long sys_getdents64 /* 220 */ | ||
634 | .long sys_gettid | ||
635 | .long sys_tkill | ||
636 | .long sys_setxattr | ||
637 | .long sys_lsetxattr | ||
638 | .long sys_fsetxattr /* 225 */ | ||
639 | .long sys_getxattr | ||
640 | .long sys_lgetxattr | ||
641 | .long sys_fgetxattr | ||
642 | .long sys_listxattr | ||
643 | .long sys_llistxattr /* 230 */ | ||
644 | .long sys_flistxattr | ||
645 | .long sys_removexattr | ||
646 | .long sys_lremovexattr | ||
647 | .long sys_fremovexattr | ||
648 | .long sys_futex /* 235 */ | ||
649 | .long sys_sendfile64 | ||
650 | .long sys_mincore | ||
651 | .long sys_madvise | ||
652 | .long sys_fcntl64 | ||
653 | .long sys_readahead /* 240 */ | ||
654 | .long sys_io_setup | ||
655 | .long sys_io_destroy | ||
656 | .long sys_io_getevents | ||
657 | .long sys_io_submit | ||
658 | .long sys_io_cancel /* 245 */ | ||
659 | .long sys_fadvise64 | ||
660 | .long sys_exit_group | ||
661 | .long sys_lookup_dcookie | ||
662 | .long sys_epoll_create | ||
663 | .long sys_epoll_ctl /* 250 */ | ||
664 | .long sys_epoll_wait | ||
665 | .long sys_remap_file_pages | ||
666 | .long sys_set_tid_address | ||
667 | .long sys_timer_create | ||
668 | .long sys_timer_settime /* 255 */ | ||
669 | .long sys_timer_gettime | ||
670 | .long sys_timer_getoverrun | ||
671 | .long sys_timer_delete | ||
672 | .long sys_clock_settime | ||
673 | .long sys_clock_gettime /* 260 */ | ||
674 | .long sys_clock_getres | ||
675 | .long sys_clock_nanosleep | ||
676 | .long sys_statfs64 | ||
677 | .long sys_fstatfs64 | ||
678 | .long sys_tgkill /* 265 */ | ||
679 | .long sys_utimes | ||
680 | .long sys_fadvise64_64 | ||
681 | .long sys_mbind | ||
682 | .long sys_get_mempolicy | ||
683 | .long sys_set_mempolicy /* 270 */ | ||
684 | .long sys_mq_open | ||
685 | .long sys_mq_unlink | ||
686 | .long sys_mq_timedsend | ||
687 | .long sys_mq_timedreceive | ||
688 | .long sys_mq_notify /* 275 */ | ||
689 | .long sys_mq_getsetattr | ||
690 | .long sys_waitid | ||
691 | .long sys_ni_syscall /* for sys_vserver */ | ||
692 | .long sys_add_key | ||
693 | .long sys_request_key /* 280 */ | ||
694 | .long sys_keyctl | ||
695 | .long sys_ioprio_set | ||
696 | .long sys_ioprio_get | ||
697 | .long sys_inotify_init | ||
698 | .long sys_inotify_add_watch /* 285 */ | ||
699 | .long sys_inotify_rm_watch | ||
700 | .long sys_migrate_pages | ||
701 | .long sys_openat | ||
702 | .long sys_mkdirat | ||
703 | .long sys_mknodat /* 290 */ | ||
704 | .long sys_fchownat | ||
705 | .long sys_futimesat | ||
706 | .long sys_fstatat64 | ||
707 | .long sys_unlinkat | ||
708 | .long sys_renameat /* 295 */ | ||
709 | .long sys_linkat | ||
710 | .long sys_symlinkat | ||
711 | .long sys_readlinkat | ||
712 | .long sys_fchmodat | ||
713 | .long sys_faccessat /* 300 */ | ||
714 | .long sys_ni_syscall /* Reserved for pselect6 */ | ||
715 | .long sys_ni_syscall /* Reserved for ppoll */ | ||
716 | .long sys_unshare | ||
717 | .long sys_set_robust_list | ||
718 | .long sys_get_robust_list /* 305 */ | ||
719 | .long sys_splice | ||
720 | .long sys_sync_file_range | ||
721 | .long sys_tee | ||
722 | .long sys_vmsplice | ||
723 | .long sys_move_pages /* 310 */ | ||
724 | .long sys_sched_setaffinity | ||
725 | .long sys_sched_getaffinity | ||
726 | .long sys_kexec_load | ||
727 | .long sys_getcpu | ||
728 | .long sys_epoll_pwait /* 315 */ | ||
729 | .long sys_utimensat | ||
730 | .long sys_signalfd | ||
731 | .long sys_timerfd_create | ||
732 | .long sys_eventfd | ||
733 | .long sys_fallocate /* 320 */ | ||
734 | .long sys_timerfd_settime | ||
735 | .long sys_timerfd_gettime | ||
736 | .long sys_signalfd4 | ||
737 | .long sys_eventfd2 | ||
738 | .long sys_epoll_create1 /* 325 */ | ||
739 | .long sys_dup3 | ||
740 | .long sys_pipe2 | ||
741 | .long sys_inotify_init1 | ||
742 | .long sys_preadv | ||
743 | .long sys_pwritev /* 330 */ | ||
744 | .long sys_rt_tgsigqueueinfo | ||
745 | .long sys_perf_event_open | ||
746 | .long sys_get_thread_area | ||
747 | .long sys_set_thread_area | ||
748 | .long sys_atomic_cmpxchg_32 /* 335 */ | ||
749 | .long sys_atomic_barrier | ||
750 | .long sys_fanotify_init | ||
751 | .long sys_fanotify_mark | ||
752 | .long sys_prlimit64 | ||
753 | |||
diff --git a/arch/m68knommu/kernel/entry.S b/arch/m68k/kernel/entry_no.S index 2783f25e38bd..2783f25e38bd 100644 --- a/arch/m68knommu/kernel/entry.S +++ b/arch/m68k/kernel/entry_no.S | |||
diff --git a/arch/m68knommu/kernel/init_task.c b/arch/m68k/kernel/init_task.c index cbf9dc3cc51d..cbf9dc3cc51d 100644 --- a/arch/m68knommu/kernel/init_task.c +++ b/arch/m68k/kernel/init_task.c | |||
diff --git a/arch/m68knommu/kernel/irq.c b/arch/m68k/kernel/irq.c index c7dd48f37bee..c7dd48f37bee 100644 --- a/arch/m68knommu/kernel/irq.c +++ b/arch/m68k/kernel/irq.c | |||
diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c index d900e77e5363..4752c28ce0ac 100644 --- a/arch/m68k/kernel/m68k_ksyms.c +++ b/arch/m68k/kernel/m68k_ksyms.c | |||
@@ -1,16 +1,5 @@ | |||
1 | #include <linux/module.h> | 1 | #ifdef CONFIG_MMU |
2 | 2 | #include "m68k_ksyms_mm.c" | |
3 | asmlinkage long long __ashldi3 (long long, int); | 3 | #else |
4 | asmlinkage long long __ashrdi3 (long long, int); | 4 | #include "m68k_ksyms_no.c" |
5 | asmlinkage long long __lshrdi3 (long long, int); | 5 | #endif |
6 | asmlinkage long long __muldi3 (long long, long long); | ||
7 | |||
8 | /* The following are special because they're not called | ||
9 | explicitly (the C compiler generates them). Fortunately, | ||
10 | their interface isn't gonna change any time soon now, so | ||
11 | it's OK to leave it out of version control. */ | ||
12 | EXPORT_SYMBOL(__ashldi3); | ||
13 | EXPORT_SYMBOL(__ashrdi3); | ||
14 | EXPORT_SYMBOL(__lshrdi3); | ||
15 | EXPORT_SYMBOL(__muldi3); | ||
16 | |||
diff --git a/arch/m68k/kernel/m68k_ksyms_mm.c b/arch/m68k/kernel/m68k_ksyms_mm.c new file mode 100644 index 000000000000..d900e77e5363 --- /dev/null +++ b/arch/m68k/kernel/m68k_ksyms_mm.c | |||
@@ -0,0 +1,16 @@ | |||
1 | #include <linux/module.h> | ||
2 | |||
3 | asmlinkage long long __ashldi3 (long long, int); | ||
4 | asmlinkage long long __ashrdi3 (long long, int); | ||
5 | asmlinkage long long __lshrdi3 (long long, int); | ||
6 | asmlinkage long long __muldi3 (long long, long long); | ||
7 | |||
8 | /* The following are special because they're not called | ||
9 | explicitly (the C compiler generates them). Fortunately, | ||
10 | their interface isn't gonna change any time soon now, so | ||
11 | it's OK to leave it out of version control. */ | ||
12 | EXPORT_SYMBOL(__ashldi3); | ||
13 | EXPORT_SYMBOL(__ashrdi3); | ||
14 | EXPORT_SYMBOL(__lshrdi3); | ||
15 | EXPORT_SYMBOL(__muldi3); | ||
16 | |||
diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms_no.c index 39fe0a7aec32..39fe0a7aec32 100644 --- a/arch/m68knommu/kernel/m68k_ksyms.c +++ b/arch/m68k/kernel/m68k_ksyms_no.c | |||
diff --git a/arch/m68k/kernel/module.c b/arch/m68k/kernel/module.c index cd6bcb1c957e..7ea203ce6b1a 100644 --- a/arch/m68k/kernel/module.c +++ b/arch/m68k/kernel/module.c | |||
@@ -1,155 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * This file is subject to the terms and conditions of the GNU General Public | 2 | #include "module_mm.c" |
3 | * License. See the file COPYING in the main directory of this archive | ||
4 | * for more details. | ||
5 | */ | ||
6 | |||
7 | #include <linux/moduleloader.h> | ||
8 | #include <linux/elf.h> | ||
9 | #include <linux/vmalloc.h> | ||
10 | #include <linux/fs.h> | ||
11 | #include <linux/string.h> | ||
12 | #include <linux/kernel.h> | ||
13 | |||
14 | #if 0 | ||
15 | #define DEBUGP printk | ||
16 | #else | 3 | #else |
17 | #define DEBUGP(fmt...) | 4 | #include "module_no.c" |
18 | #endif | 5 | #endif |
19 | |||
20 | #ifdef CONFIG_MODULES | ||
21 | |||
22 | void *module_alloc(unsigned long size) | ||
23 | { | ||
24 | if (size == 0) | ||
25 | return NULL; | ||
26 | return vmalloc(size); | ||
27 | } | ||
28 | |||
29 | |||
30 | /* Free memory returned from module_alloc */ | ||
31 | void module_free(struct module *mod, void *module_region) | ||
32 | { | ||
33 | vfree(module_region); | ||
34 | } | ||
35 | |||
36 | /* We don't need anything special. */ | ||
37 | int module_frob_arch_sections(Elf_Ehdr *hdr, | ||
38 | Elf_Shdr *sechdrs, | ||
39 | char *secstrings, | ||
40 | struct module *mod) | ||
41 | { | ||
42 | return 0; | ||
43 | } | ||
44 | |||
45 | int apply_relocate(Elf32_Shdr *sechdrs, | ||
46 | const char *strtab, | ||
47 | unsigned int symindex, | ||
48 | unsigned int relsec, | ||
49 | struct module *me) | ||
50 | { | ||
51 | unsigned int i; | ||
52 | Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; | ||
53 | Elf32_Sym *sym; | ||
54 | uint32_t *location; | ||
55 | |||
56 | DEBUGP("Applying relocate section %u to %u\n", relsec, | ||
57 | sechdrs[relsec].sh_info); | ||
58 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { | ||
59 | /* This is where to make the change */ | ||
60 | location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr | ||
61 | + rel[i].r_offset; | ||
62 | /* This is the symbol it is referring to. Note that all | ||
63 | undefined symbols have been resolved. */ | ||
64 | sym = (Elf32_Sym *)sechdrs[symindex].sh_addr | ||
65 | + ELF32_R_SYM(rel[i].r_info); | ||
66 | |||
67 | switch (ELF32_R_TYPE(rel[i].r_info)) { | ||
68 | case R_68K_32: | ||
69 | /* We add the value into the location given */ | ||
70 | *location += sym->st_value; | ||
71 | break; | ||
72 | case R_68K_PC32: | ||
73 | /* Add the value, subtract its postition */ | ||
74 | *location += sym->st_value - (uint32_t)location; | ||
75 | break; | ||
76 | default: | ||
77 | printk(KERN_ERR "module %s: Unknown relocation: %u\n", | ||
78 | me->name, ELF32_R_TYPE(rel[i].r_info)); | ||
79 | return -ENOEXEC; | ||
80 | } | ||
81 | } | ||
82 | return 0; | ||
83 | } | ||
84 | |||
85 | int apply_relocate_add(Elf32_Shdr *sechdrs, | ||
86 | const char *strtab, | ||
87 | unsigned int symindex, | ||
88 | unsigned int relsec, | ||
89 | struct module *me) | ||
90 | { | ||
91 | unsigned int i; | ||
92 | Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; | ||
93 | Elf32_Sym *sym; | ||
94 | uint32_t *location; | ||
95 | |||
96 | DEBUGP("Applying relocate_add section %u to %u\n", relsec, | ||
97 | sechdrs[relsec].sh_info); | ||
98 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { | ||
99 | /* This is where to make the change */ | ||
100 | location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr | ||
101 | + rel[i].r_offset; | ||
102 | /* This is the symbol it is referring to. Note that all | ||
103 | undefined symbols have been resolved. */ | ||
104 | sym = (Elf32_Sym *)sechdrs[symindex].sh_addr | ||
105 | + ELF32_R_SYM(rel[i].r_info); | ||
106 | |||
107 | switch (ELF32_R_TYPE(rel[i].r_info)) { | ||
108 | case R_68K_32: | ||
109 | /* We add the value into the location given */ | ||
110 | *location = rel[i].r_addend + sym->st_value; | ||
111 | break; | ||
112 | case R_68K_PC32: | ||
113 | /* Add the value, subtract its postition */ | ||
114 | *location = rel[i].r_addend + sym->st_value - (uint32_t)location; | ||
115 | break; | ||
116 | default: | ||
117 | printk(KERN_ERR "module %s: Unknown relocation: %u\n", | ||
118 | me->name, ELF32_R_TYPE(rel[i].r_info)); | ||
119 | return -ENOEXEC; | ||
120 | } | ||
121 | } | ||
122 | return 0; | ||
123 | } | ||
124 | |||
125 | int module_finalize(const Elf_Ehdr *hdr, | ||
126 | const Elf_Shdr *sechdrs, | ||
127 | struct module *mod) | ||
128 | { | ||
129 | module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end); | ||
130 | |||
131 | return 0; | ||
132 | } | ||
133 | |||
134 | void module_arch_cleanup(struct module *mod) | ||
135 | { | ||
136 | } | ||
137 | |||
138 | #endif /* CONFIG_MODULES */ | ||
139 | |||
140 | void module_fixup(struct module *mod, struct m68k_fixup_info *start, | ||
141 | struct m68k_fixup_info *end) | ||
142 | { | ||
143 | struct m68k_fixup_info *fixup; | ||
144 | |||
145 | for (fixup = start; fixup < end; fixup++) { | ||
146 | switch (fixup->type) { | ||
147 | case m68k_fixup_memoffset: | ||
148 | *(u32 *)fixup->addr = m68k_memoffset; | ||
149 | break; | ||
150 | case m68k_fixup_vnode_shift: | ||
151 | *(u16 *)fixup->addr += m68k_virt_to_node_shift; | ||
152 | break; | ||
153 | } | ||
154 | } | ||
155 | } | ||
diff --git a/arch/m68k/kernel/module_mm.c b/arch/m68k/kernel/module_mm.c new file mode 100644 index 000000000000..cd6bcb1c957e --- /dev/null +++ b/arch/m68k/kernel/module_mm.c | |||
@@ -0,0 +1,155 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file COPYING in the main directory of this archive | ||
4 | * for more details. | ||
5 | */ | ||
6 | |||
7 | #include <linux/moduleloader.h> | ||
8 | #include <linux/elf.h> | ||
9 | #include <linux/vmalloc.h> | ||
10 | #include <linux/fs.h> | ||
11 | #include <linux/string.h> | ||
12 | #include <linux/kernel.h> | ||
13 | |||
14 | #if 0 | ||
15 | #define DEBUGP printk | ||
16 | #else | ||
17 | #define DEBUGP(fmt...) | ||
18 | #endif | ||
19 | |||
20 | #ifdef CONFIG_MODULES | ||
21 | |||
22 | void *module_alloc(unsigned long size) | ||
23 | { | ||
24 | if (size == 0) | ||
25 | return NULL; | ||
26 | return vmalloc(size); | ||
27 | } | ||
28 | |||
29 | |||
30 | /* Free memory returned from module_alloc */ | ||
31 | void module_free(struct module *mod, void *module_region) | ||
32 | { | ||
33 | vfree(module_region); | ||
34 | } | ||
35 | |||
36 | /* We don't need anything special. */ | ||
37 | int module_frob_arch_sections(Elf_Ehdr *hdr, | ||
38 | Elf_Shdr *sechdrs, | ||
39 | char *secstrings, | ||
40 | struct module *mod) | ||
41 | { | ||
42 | return 0; | ||
43 | } | ||
44 | |||
45 | int apply_relocate(Elf32_Shdr *sechdrs, | ||
46 | const char *strtab, | ||
47 | unsigned int symindex, | ||
48 | unsigned int relsec, | ||
49 | struct module *me) | ||
50 | { | ||
51 | unsigned int i; | ||
52 | Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; | ||
53 | Elf32_Sym *sym; | ||
54 | uint32_t *location; | ||
55 | |||
56 | DEBUGP("Applying relocate section %u to %u\n", relsec, | ||
57 | sechdrs[relsec].sh_info); | ||
58 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { | ||
59 | /* This is where to make the change */ | ||
60 | location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr | ||
61 | + rel[i].r_offset; | ||
62 | /* This is the symbol it is referring to. Note that all | ||
63 | undefined symbols have been resolved. */ | ||
64 | sym = (Elf32_Sym *)sechdrs[symindex].sh_addr | ||
65 | + ELF32_R_SYM(rel[i].r_info); | ||
66 | |||
67 | switch (ELF32_R_TYPE(rel[i].r_info)) { | ||
68 | case R_68K_32: | ||
69 | /* We add the value into the location given */ | ||
70 | *location += sym->st_value; | ||
71 | break; | ||
72 | case R_68K_PC32: | ||
73 | /* Add the value, subtract its postition */ | ||
74 | *location += sym->st_value - (uint32_t)location; | ||
75 | break; | ||
76 | default: | ||
77 | printk(KERN_ERR "module %s: Unknown relocation: %u\n", | ||
78 | me->name, ELF32_R_TYPE(rel[i].r_info)); | ||
79 | return -ENOEXEC; | ||
80 | } | ||
81 | } | ||
82 | return 0; | ||
83 | } | ||
84 | |||
85 | int apply_relocate_add(Elf32_Shdr *sechdrs, | ||
86 | const char *strtab, | ||
87 | unsigned int symindex, | ||
88 | unsigned int relsec, | ||
89 | struct module *me) | ||
90 | { | ||
91 | unsigned int i; | ||
92 | Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; | ||
93 | Elf32_Sym *sym; | ||
94 | uint32_t *location; | ||
95 | |||
96 | DEBUGP("Applying relocate_add section %u to %u\n", relsec, | ||
97 | sechdrs[relsec].sh_info); | ||
98 | for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { | ||
99 | /* This is where to make the change */ | ||
100 | location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr | ||
101 | + rel[i].r_offset; | ||
102 | /* This is the symbol it is referring to. Note that all | ||
103 | undefined symbols have been resolved. */ | ||
104 | sym = (Elf32_Sym *)sechdrs[symindex].sh_addr | ||
105 | + ELF32_R_SYM(rel[i].r_info); | ||
106 | |||
107 | switch (ELF32_R_TYPE(rel[i].r_info)) { | ||
108 | case R_68K_32: | ||
109 | /* We add the value into the location given */ | ||
110 | *location = rel[i].r_addend + sym->st_value; | ||
111 | break; | ||
112 | case R_68K_PC32: | ||
113 | /* Add the value, subtract its postition */ | ||
114 | *location = rel[i].r_addend + sym->st_value - (uint32_t)location; | ||
115 | break; | ||
116 | default: | ||
117 | printk(KERN_ERR "module %s: Unknown relocation: %u\n", | ||
118 | me->name, ELF32_R_TYPE(rel[i].r_info)); | ||
119 | return -ENOEXEC; | ||
120 | } | ||
121 | } | ||
122 | return 0; | ||
123 | } | ||
124 | |||
125 | int module_finalize(const Elf_Ehdr *hdr, | ||
126 | const Elf_Shdr *sechdrs, | ||
127 | struct module *mod) | ||
128 | { | ||
129 | module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end); | ||
130 | |||
131 | return 0; | ||
132 | } | ||
133 | |||
134 | void module_arch_cleanup(struct module *mod) | ||
135 | { | ||
136 | } | ||
137 | |||
138 | #endif /* CONFIG_MODULES */ | ||
139 | |||
140 | void module_fixup(struct module *mod, struct m68k_fixup_info *start, | ||
141 | struct m68k_fixup_info *end) | ||
142 | { | ||
143 | struct m68k_fixup_info *fixup; | ||
144 | |||
145 | for (fixup = start; fixup < end; fixup++) { | ||
146 | switch (fixup->type) { | ||
147 | case m68k_fixup_memoffset: | ||
148 | *(u32 *)fixup->addr = m68k_memoffset; | ||
149 | break; | ||
150 | case m68k_fixup_vnode_shift: | ||
151 | *(u16 *)fixup->addr += m68k_virt_to_node_shift; | ||
152 | break; | ||
153 | } | ||
154 | } | ||
155 | } | ||
diff --git a/arch/m68knommu/kernel/module.c b/arch/m68k/kernel/module_no.c index d11ffae7956a..d11ffae7956a 100644 --- a/arch/m68knommu/kernel/module.c +++ b/arch/m68k/kernel/module_no.c | |||
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index c2a1fc23dd75..6cf4bd6e34f8 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c | |||
@@ -1,354 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/process.c | 2 | #include "process_mm.c" |
3 | * | ||
4 | * Copyright (C) 1995 Hamish Macdonald | ||
5 | * | ||
6 | * 68060 fixes by Jesper Skov | ||
7 | */ | ||
8 | |||
9 | /* | ||
10 | * This file handles the architecture-dependent parts of process handling.. | ||
11 | */ | ||
12 | |||
13 | #include <linux/errno.h> | ||
14 | #include <linux/module.h> | ||
15 | #include <linux/sched.h> | ||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/mm.h> | ||
18 | #include <linux/slab.h> | ||
19 | #include <linux/fs.h> | ||
20 | #include <linux/smp.h> | ||
21 | #include <linux/stddef.h> | ||
22 | #include <linux/unistd.h> | ||
23 | #include <linux/ptrace.h> | ||
24 | #include <linux/user.h> | ||
25 | #include <linux/reboot.h> | ||
26 | #include <linux/init_task.h> | ||
27 | #include <linux/mqueue.h> | ||
28 | |||
29 | #include <asm/uaccess.h> | ||
30 | #include <asm/system.h> | ||
31 | #include <asm/traps.h> | ||
32 | #include <asm/machdep.h> | ||
33 | #include <asm/setup.h> | ||
34 | #include <asm/pgtable.h> | ||
35 | |||
36 | /* | ||
37 | * Initial task/thread structure. Make this a per-architecture thing, | ||
38 | * because different architectures tend to have different | ||
39 | * alignment requirements and potentially different initial | ||
40 | * setup. | ||
41 | */ | ||
42 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | ||
43 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | ||
44 | union thread_union init_thread_union __init_task_data | ||
45 | __attribute__((aligned(THREAD_SIZE))) = | ||
46 | { INIT_THREAD_INFO(init_task) }; | ||
47 | |||
48 | /* initial task structure */ | ||
49 | struct task_struct init_task = INIT_TASK(init_task); | ||
50 | |||
51 | EXPORT_SYMBOL(init_task); | ||
52 | |||
53 | asmlinkage void ret_from_fork(void); | ||
54 | |||
55 | |||
56 | /* | ||
57 | * Return saved PC from a blocked thread | ||
58 | */ | ||
59 | unsigned long thread_saved_pc(struct task_struct *tsk) | ||
60 | { | ||
61 | struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; | ||
62 | /* Check whether the thread is blocked in resume() */ | ||
63 | if (in_sched_functions(sw->retpc)) | ||
64 | return ((unsigned long *)sw->a6)[1]; | ||
65 | else | ||
66 | return sw->retpc; | ||
67 | } | ||
68 | |||
69 | /* | ||
70 | * The idle loop on an m68k.. | ||
71 | */ | ||
72 | static void default_idle(void) | ||
73 | { | ||
74 | if (!need_resched()) | ||
75 | #if defined(MACH_ATARI_ONLY) | ||
76 | /* block out HSYNC on the atari (falcon) */ | ||
77 | __asm__("stop #0x2200" : : : "cc"); | ||
78 | #else | 3 | #else |
79 | __asm__("stop #0x2000" : : : "cc"); | 4 | #include "process_no.c" |
80 | #endif | 5 | #endif |
81 | } | ||
82 | |||
83 | void (*idle)(void) = default_idle; | ||
84 | |||
85 | /* | ||
86 | * The idle thread. There's no useful work to be | ||
87 | * done, so just try to conserve power and have a | ||
88 | * low exit latency (ie sit in a loop waiting for | ||
89 | * somebody to say that they'd like to reschedule) | ||
90 | */ | ||
91 | void cpu_idle(void) | ||
92 | { | ||
93 | /* endless idle loop with no priority at all */ | ||
94 | while (1) { | ||
95 | while (!need_resched()) | ||
96 | idle(); | ||
97 | preempt_enable_no_resched(); | ||
98 | schedule(); | ||
99 | preempt_disable(); | ||
100 | } | ||
101 | } | ||
102 | |||
103 | void machine_restart(char * __unused) | ||
104 | { | ||
105 | if (mach_reset) | ||
106 | mach_reset(); | ||
107 | for (;;); | ||
108 | } | ||
109 | |||
110 | void machine_halt(void) | ||
111 | { | ||
112 | if (mach_halt) | ||
113 | mach_halt(); | ||
114 | for (;;); | ||
115 | } | ||
116 | |||
117 | void machine_power_off(void) | ||
118 | { | ||
119 | if (mach_power_off) | ||
120 | mach_power_off(); | ||
121 | for (;;); | ||
122 | } | ||
123 | |||
124 | void (*pm_power_off)(void) = machine_power_off; | ||
125 | EXPORT_SYMBOL(pm_power_off); | ||
126 | |||
127 | void show_regs(struct pt_regs * regs) | ||
128 | { | ||
129 | printk("\n"); | ||
130 | printk("Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", | ||
131 | regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); | ||
132 | printk("ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", | ||
133 | regs->orig_d0, regs->d0, regs->a2, regs->a1); | ||
134 | printk("A0: %08lx D5: %08lx D4: %08lx\n", | ||
135 | regs->a0, regs->d5, regs->d4); | ||
136 | printk("D3: %08lx D2: %08lx D1: %08lx\n", | ||
137 | regs->d3, regs->d2, regs->d1); | ||
138 | if (!(regs->sr & PS_S)) | ||
139 | printk("USP: %08lx\n", rdusp()); | ||
140 | } | ||
141 | |||
142 | /* | ||
143 | * Create a kernel thread | ||
144 | */ | ||
145 | int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) | ||
146 | { | ||
147 | int pid; | ||
148 | mm_segment_t fs; | ||
149 | |||
150 | fs = get_fs(); | ||
151 | set_fs (KERNEL_DS); | ||
152 | |||
153 | { | ||
154 | register long retval __asm__ ("d0"); | ||
155 | register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED; | ||
156 | |||
157 | retval = __NR_clone; | ||
158 | __asm__ __volatile__ | ||
159 | ("clrl %%d2\n\t" | ||
160 | "trap #0\n\t" /* Linux/m68k system call */ | ||
161 | "tstl %0\n\t" /* child or parent */ | ||
162 | "jne 1f\n\t" /* parent - jump */ | ||
163 | "lea %%sp@(%c7),%6\n\t" /* reload current */ | ||
164 | "movel %6@,%6\n\t" | ||
165 | "movel %3,%%sp@-\n\t" /* push argument */ | ||
166 | "jsr %4@\n\t" /* call fn */ | ||
167 | "movel %0,%%d1\n\t" /* pass exit value */ | ||
168 | "movel %2,%%d0\n\t" /* exit */ | ||
169 | "trap #0\n" | ||
170 | "1:" | ||
171 | : "+d" (retval) | ||
172 | : "i" (__NR_clone), "i" (__NR_exit), | ||
173 | "r" (arg), "a" (fn), "d" (clone_arg), "r" (current), | ||
174 | "i" (-THREAD_SIZE) | ||
175 | : "d2"); | ||
176 | |||
177 | pid = retval; | ||
178 | } | ||
179 | |||
180 | set_fs (fs); | ||
181 | return pid; | ||
182 | } | ||
183 | EXPORT_SYMBOL(kernel_thread); | ||
184 | |||
185 | void flush_thread(void) | ||
186 | { | ||
187 | unsigned long zero = 0; | ||
188 | set_fs(USER_DS); | ||
189 | current->thread.fs = __USER_DS; | ||
190 | if (!FPU_IS_EMU) | ||
191 | asm volatile (".chip 68k/68881\n\t" | ||
192 | "frestore %0@\n\t" | ||
193 | ".chip 68k" : : "a" (&zero)); | ||
194 | } | ||
195 | |||
196 | /* | ||
197 | * "m68k_fork()".. By the time we get here, the | ||
198 | * non-volatile registers have also been saved on the | ||
199 | * stack. We do some ugly pointer stuff here.. (see | ||
200 | * also copy_thread) | ||
201 | */ | ||
202 | |||
203 | asmlinkage int m68k_fork(struct pt_regs *regs) | ||
204 | { | ||
205 | return do_fork(SIGCHLD, rdusp(), regs, 0, NULL, NULL); | ||
206 | } | ||
207 | |||
208 | asmlinkage int m68k_vfork(struct pt_regs *regs) | ||
209 | { | ||
210 | return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, | ||
211 | NULL, NULL); | ||
212 | } | ||
213 | |||
214 | asmlinkage int m68k_clone(struct pt_regs *regs) | ||
215 | { | ||
216 | unsigned long clone_flags; | ||
217 | unsigned long newsp; | ||
218 | int __user *parent_tidptr, *child_tidptr; | ||
219 | |||
220 | /* syscall2 puts clone_flags in d1 and usp in d2 */ | ||
221 | clone_flags = regs->d1; | ||
222 | newsp = regs->d2; | ||
223 | parent_tidptr = (int __user *)regs->d3; | ||
224 | child_tidptr = (int __user *)regs->d4; | ||
225 | if (!newsp) | ||
226 | newsp = rdusp(); | ||
227 | return do_fork(clone_flags, newsp, regs, 0, | ||
228 | parent_tidptr, child_tidptr); | ||
229 | } | ||
230 | |||
231 | int copy_thread(unsigned long clone_flags, unsigned long usp, | ||
232 | unsigned long unused, | ||
233 | struct task_struct * p, struct pt_regs * regs) | ||
234 | { | ||
235 | struct pt_regs * childregs; | ||
236 | struct switch_stack * childstack, *stack; | ||
237 | unsigned long *retp; | ||
238 | |||
239 | childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; | ||
240 | |||
241 | *childregs = *regs; | ||
242 | childregs->d0 = 0; | ||
243 | |||
244 | retp = ((unsigned long *) regs); | ||
245 | stack = ((struct switch_stack *) retp) - 1; | ||
246 | |||
247 | childstack = ((struct switch_stack *) childregs) - 1; | ||
248 | *childstack = *stack; | ||
249 | childstack->retpc = (unsigned long)ret_from_fork; | ||
250 | |||
251 | p->thread.usp = usp; | ||
252 | p->thread.ksp = (unsigned long)childstack; | ||
253 | |||
254 | if (clone_flags & CLONE_SETTLS) | ||
255 | task_thread_info(p)->tp_value = regs->d5; | ||
256 | |||
257 | /* | ||
258 | * Must save the current SFC/DFC value, NOT the value when | ||
259 | * the parent was last descheduled - RGH 10-08-96 | ||
260 | */ | ||
261 | p->thread.fs = get_fs().seg; | ||
262 | |||
263 | if (!FPU_IS_EMU) { | ||
264 | /* Copy the current fpu state */ | ||
265 | asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); | ||
266 | |||
267 | if (!CPU_IS_060 ? p->thread.fpstate[0] : p->thread.fpstate[2]) | ||
268 | asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" | ||
269 | "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" | ||
270 | : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) | ||
271 | : "memory"); | ||
272 | /* Restore the state in case the fpu was busy */ | ||
273 | asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); | ||
274 | } | ||
275 | |||
276 | return 0; | ||
277 | } | ||
278 | |||
279 | /* Fill in the fpu structure for a core dump. */ | ||
280 | |||
281 | int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu) | ||
282 | { | ||
283 | char fpustate[216]; | ||
284 | |||
285 | if (FPU_IS_EMU) { | ||
286 | int i; | ||
287 | |||
288 | memcpy(fpu->fpcntl, current->thread.fpcntl, 12); | ||
289 | memcpy(fpu->fpregs, current->thread.fp, 96); | ||
290 | /* Convert internal fpu reg representation | ||
291 | * into long double format | ||
292 | */ | ||
293 | for (i = 0; i < 24; i += 3) | ||
294 | fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | | ||
295 | ((fpu->fpregs[i] & 0x0000ffff) << 16); | ||
296 | return 1; | ||
297 | } | ||
298 | |||
299 | /* First dump the fpu context to avoid protocol violation. */ | ||
300 | asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); | ||
301 | if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2]) | ||
302 | return 0; | ||
303 | |||
304 | asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" | ||
305 | :: "m" (fpu->fpcntl[0]) | ||
306 | : "memory"); | ||
307 | asm volatile ("fmovemx %/fp0-%/fp7,%0" | ||
308 | :: "m" (fpu->fpregs[0]) | ||
309 | : "memory"); | ||
310 | return 1; | ||
311 | } | ||
312 | EXPORT_SYMBOL(dump_fpu); | ||
313 | |||
314 | /* | ||
315 | * sys_execve() executes a new program. | ||
316 | */ | ||
317 | asmlinkage int sys_execve(const char __user *name, | ||
318 | const char __user *const __user *argv, | ||
319 | const char __user *const __user *envp) | ||
320 | { | ||
321 | int error; | ||
322 | char * filename; | ||
323 | struct pt_regs *regs = (struct pt_regs *) &name; | ||
324 | |||
325 | filename = getname(name); | ||
326 | error = PTR_ERR(filename); | ||
327 | if (IS_ERR(filename)) | ||
328 | return error; | ||
329 | error = do_execve(filename, argv, envp, regs); | ||
330 | putname(filename); | ||
331 | return error; | ||
332 | } | ||
333 | |||
334 | unsigned long get_wchan(struct task_struct *p) | ||
335 | { | ||
336 | unsigned long fp, pc; | ||
337 | unsigned long stack_page; | ||
338 | int count = 0; | ||
339 | if (!p || p == current || p->state == TASK_RUNNING) | ||
340 | return 0; | ||
341 | |||
342 | stack_page = (unsigned long)task_stack_page(p); | ||
343 | fp = ((struct switch_stack *)p->thread.ksp)->a6; | ||
344 | do { | ||
345 | if (fp < stack_page+sizeof(struct thread_info) || | ||
346 | fp >= 8184+stack_page) | ||
347 | return 0; | ||
348 | pc = ((unsigned long *)fp)[1]; | ||
349 | if (!in_sched_functions(pc)) | ||
350 | return pc; | ||
351 | fp = *(unsigned long *) fp; | ||
352 | } while (count++ < 16); | ||
353 | return 0; | ||
354 | } | ||
diff --git a/arch/m68k/kernel/process_mm.c b/arch/m68k/kernel/process_mm.c new file mode 100644 index 000000000000..c2a1fc23dd75 --- /dev/null +++ b/arch/m68k/kernel/process_mm.c | |||
@@ -0,0 +1,354 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/process.c | ||
3 | * | ||
4 | * Copyright (C) 1995 Hamish Macdonald | ||
5 | * | ||
6 | * 68060 fixes by Jesper Skov | ||
7 | */ | ||
8 | |||
9 | /* | ||
10 | * This file handles the architecture-dependent parts of process handling.. | ||
11 | */ | ||
12 | |||
13 | #include <linux/errno.h> | ||
14 | #include <linux/module.h> | ||
15 | #include <linux/sched.h> | ||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/mm.h> | ||
18 | #include <linux/slab.h> | ||
19 | #include <linux/fs.h> | ||
20 | #include <linux/smp.h> | ||
21 | #include <linux/stddef.h> | ||
22 | #include <linux/unistd.h> | ||
23 | #include <linux/ptrace.h> | ||
24 | #include <linux/user.h> | ||
25 | #include <linux/reboot.h> | ||
26 | #include <linux/init_task.h> | ||
27 | #include <linux/mqueue.h> | ||
28 | |||
29 | #include <asm/uaccess.h> | ||
30 | #include <asm/system.h> | ||
31 | #include <asm/traps.h> | ||
32 | #include <asm/machdep.h> | ||
33 | #include <asm/setup.h> | ||
34 | #include <asm/pgtable.h> | ||
35 | |||
36 | /* | ||
37 | * Initial task/thread structure. Make this a per-architecture thing, | ||
38 | * because different architectures tend to have different | ||
39 | * alignment requirements and potentially different initial | ||
40 | * setup. | ||
41 | */ | ||
42 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | ||
43 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | ||
44 | union thread_union init_thread_union __init_task_data | ||
45 | __attribute__((aligned(THREAD_SIZE))) = | ||
46 | { INIT_THREAD_INFO(init_task) }; | ||
47 | |||
48 | /* initial task structure */ | ||
49 | struct task_struct init_task = INIT_TASK(init_task); | ||
50 | |||
51 | EXPORT_SYMBOL(init_task); | ||
52 | |||
53 | asmlinkage void ret_from_fork(void); | ||
54 | |||
55 | |||
56 | /* | ||
57 | * Return saved PC from a blocked thread | ||
58 | */ | ||
59 | unsigned long thread_saved_pc(struct task_struct *tsk) | ||
60 | { | ||
61 | struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; | ||
62 | /* Check whether the thread is blocked in resume() */ | ||
63 | if (in_sched_functions(sw->retpc)) | ||
64 | return ((unsigned long *)sw->a6)[1]; | ||
65 | else | ||
66 | return sw->retpc; | ||
67 | } | ||
68 | |||
69 | /* | ||
70 | * The idle loop on an m68k.. | ||
71 | */ | ||
72 | static void default_idle(void) | ||
73 | { | ||
74 | if (!need_resched()) | ||
75 | #if defined(MACH_ATARI_ONLY) | ||
76 | /* block out HSYNC on the atari (falcon) */ | ||
77 | __asm__("stop #0x2200" : : : "cc"); | ||
78 | #else | ||
79 | __asm__("stop #0x2000" : : : "cc"); | ||
80 | #endif | ||
81 | } | ||
82 | |||
83 | void (*idle)(void) = default_idle; | ||
84 | |||
85 | /* | ||
86 | * The idle thread. There's no useful work to be | ||
87 | * done, so just try to conserve power and have a | ||
88 | * low exit latency (ie sit in a loop waiting for | ||
89 | * somebody to say that they'd like to reschedule) | ||
90 | */ | ||
91 | void cpu_idle(void) | ||
92 | { | ||
93 | /* endless idle loop with no priority at all */ | ||
94 | while (1) { | ||
95 | while (!need_resched()) | ||
96 | idle(); | ||
97 | preempt_enable_no_resched(); | ||
98 | schedule(); | ||
99 | preempt_disable(); | ||
100 | } | ||
101 | } | ||
102 | |||
103 | void machine_restart(char * __unused) | ||
104 | { | ||
105 | if (mach_reset) | ||
106 | mach_reset(); | ||
107 | for (;;); | ||
108 | } | ||
109 | |||
110 | void machine_halt(void) | ||
111 | { | ||
112 | if (mach_halt) | ||
113 | mach_halt(); | ||
114 | for (;;); | ||
115 | } | ||
116 | |||
117 | void machine_power_off(void) | ||
118 | { | ||
119 | if (mach_power_off) | ||
120 | mach_power_off(); | ||
121 | for (;;); | ||
122 | } | ||
123 | |||
124 | void (*pm_power_off)(void) = machine_power_off; | ||
125 | EXPORT_SYMBOL(pm_power_off); | ||
126 | |||
127 | void show_regs(struct pt_regs * regs) | ||
128 | { | ||
129 | printk("\n"); | ||
130 | printk("Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", | ||
131 | regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); | ||
132 | printk("ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", | ||
133 | regs->orig_d0, regs->d0, regs->a2, regs->a1); | ||
134 | printk("A0: %08lx D5: %08lx D4: %08lx\n", | ||
135 | regs->a0, regs->d5, regs->d4); | ||
136 | printk("D3: %08lx D2: %08lx D1: %08lx\n", | ||
137 | regs->d3, regs->d2, regs->d1); | ||
138 | if (!(regs->sr & PS_S)) | ||
139 | printk("USP: %08lx\n", rdusp()); | ||
140 | } | ||
141 | |||
142 | /* | ||
143 | * Create a kernel thread | ||
144 | */ | ||
145 | int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) | ||
146 | { | ||
147 | int pid; | ||
148 | mm_segment_t fs; | ||
149 | |||
150 | fs = get_fs(); | ||
151 | set_fs (KERNEL_DS); | ||
152 | |||
153 | { | ||
154 | register long retval __asm__ ("d0"); | ||
155 | register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED; | ||
156 | |||
157 | retval = __NR_clone; | ||
158 | __asm__ __volatile__ | ||
159 | ("clrl %%d2\n\t" | ||
160 | "trap #0\n\t" /* Linux/m68k system call */ | ||
161 | "tstl %0\n\t" /* child or parent */ | ||
162 | "jne 1f\n\t" /* parent - jump */ | ||
163 | "lea %%sp@(%c7),%6\n\t" /* reload current */ | ||
164 | "movel %6@,%6\n\t" | ||
165 | "movel %3,%%sp@-\n\t" /* push argument */ | ||
166 | "jsr %4@\n\t" /* call fn */ | ||
167 | "movel %0,%%d1\n\t" /* pass exit value */ | ||
168 | "movel %2,%%d0\n\t" /* exit */ | ||
169 | "trap #0\n" | ||
170 | "1:" | ||
171 | : "+d" (retval) | ||
172 | : "i" (__NR_clone), "i" (__NR_exit), | ||
173 | "r" (arg), "a" (fn), "d" (clone_arg), "r" (current), | ||
174 | "i" (-THREAD_SIZE) | ||
175 | : "d2"); | ||
176 | |||
177 | pid = retval; | ||
178 | } | ||
179 | |||
180 | set_fs (fs); | ||
181 | return pid; | ||
182 | } | ||
183 | EXPORT_SYMBOL(kernel_thread); | ||
184 | |||
185 | void flush_thread(void) | ||
186 | { | ||
187 | unsigned long zero = 0; | ||
188 | set_fs(USER_DS); | ||
189 | current->thread.fs = __USER_DS; | ||
190 | if (!FPU_IS_EMU) | ||
191 | asm volatile (".chip 68k/68881\n\t" | ||
192 | "frestore %0@\n\t" | ||
193 | ".chip 68k" : : "a" (&zero)); | ||
194 | } | ||
195 | |||
196 | /* | ||
197 | * "m68k_fork()".. By the time we get here, the | ||
198 | * non-volatile registers have also been saved on the | ||
199 | * stack. We do some ugly pointer stuff here.. (see | ||
200 | * also copy_thread) | ||
201 | */ | ||
202 | |||
203 | asmlinkage int m68k_fork(struct pt_regs *regs) | ||
204 | { | ||
205 | return do_fork(SIGCHLD, rdusp(), regs, 0, NULL, NULL); | ||
206 | } | ||
207 | |||
208 | asmlinkage int m68k_vfork(struct pt_regs *regs) | ||
209 | { | ||
210 | return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, | ||
211 | NULL, NULL); | ||
212 | } | ||
213 | |||
214 | asmlinkage int m68k_clone(struct pt_regs *regs) | ||
215 | { | ||
216 | unsigned long clone_flags; | ||
217 | unsigned long newsp; | ||
218 | int __user *parent_tidptr, *child_tidptr; | ||
219 | |||
220 | /* syscall2 puts clone_flags in d1 and usp in d2 */ | ||
221 | clone_flags = regs->d1; | ||
222 | newsp = regs->d2; | ||
223 | parent_tidptr = (int __user *)regs->d3; | ||
224 | child_tidptr = (int __user *)regs->d4; | ||
225 | if (!newsp) | ||
226 | newsp = rdusp(); | ||
227 | return do_fork(clone_flags, newsp, regs, 0, | ||
228 | parent_tidptr, child_tidptr); | ||
229 | } | ||
230 | |||
231 | int copy_thread(unsigned long clone_flags, unsigned long usp, | ||
232 | unsigned long unused, | ||
233 | struct task_struct * p, struct pt_regs * regs) | ||
234 | { | ||
235 | struct pt_regs * childregs; | ||
236 | struct switch_stack * childstack, *stack; | ||
237 | unsigned long *retp; | ||
238 | |||
239 | childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; | ||
240 | |||
241 | *childregs = *regs; | ||
242 | childregs->d0 = 0; | ||
243 | |||
244 | retp = ((unsigned long *) regs); | ||
245 | stack = ((struct switch_stack *) retp) - 1; | ||
246 | |||
247 | childstack = ((struct switch_stack *) childregs) - 1; | ||
248 | *childstack = *stack; | ||
249 | childstack->retpc = (unsigned long)ret_from_fork; | ||
250 | |||
251 | p->thread.usp = usp; | ||
252 | p->thread.ksp = (unsigned long)childstack; | ||
253 | |||
254 | if (clone_flags & CLONE_SETTLS) | ||
255 | task_thread_info(p)->tp_value = regs->d5; | ||
256 | |||
257 | /* | ||
258 | * Must save the current SFC/DFC value, NOT the value when | ||
259 | * the parent was last descheduled - RGH 10-08-96 | ||
260 | */ | ||
261 | p->thread.fs = get_fs().seg; | ||
262 | |||
263 | if (!FPU_IS_EMU) { | ||
264 | /* Copy the current fpu state */ | ||
265 | asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); | ||
266 | |||
267 | if (!CPU_IS_060 ? p->thread.fpstate[0] : p->thread.fpstate[2]) | ||
268 | asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" | ||
269 | "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" | ||
270 | : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) | ||
271 | : "memory"); | ||
272 | /* Restore the state in case the fpu was busy */ | ||
273 | asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); | ||
274 | } | ||
275 | |||
276 | return 0; | ||
277 | } | ||
278 | |||
279 | /* Fill in the fpu structure for a core dump. */ | ||
280 | |||
281 | int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu) | ||
282 | { | ||
283 | char fpustate[216]; | ||
284 | |||
285 | if (FPU_IS_EMU) { | ||
286 | int i; | ||
287 | |||
288 | memcpy(fpu->fpcntl, current->thread.fpcntl, 12); | ||
289 | memcpy(fpu->fpregs, current->thread.fp, 96); | ||
290 | /* Convert internal fpu reg representation | ||
291 | * into long double format | ||
292 | */ | ||
293 | for (i = 0; i < 24; i += 3) | ||
294 | fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | | ||
295 | ((fpu->fpregs[i] & 0x0000ffff) << 16); | ||
296 | return 1; | ||
297 | } | ||
298 | |||
299 | /* First dump the fpu context to avoid protocol violation. */ | ||
300 | asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); | ||
301 | if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2]) | ||
302 | return 0; | ||
303 | |||
304 | asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" | ||
305 | :: "m" (fpu->fpcntl[0]) | ||
306 | : "memory"); | ||
307 | asm volatile ("fmovemx %/fp0-%/fp7,%0" | ||
308 | :: "m" (fpu->fpregs[0]) | ||
309 | : "memory"); | ||
310 | return 1; | ||
311 | } | ||
312 | EXPORT_SYMBOL(dump_fpu); | ||
313 | |||
314 | /* | ||
315 | * sys_execve() executes a new program. | ||
316 | */ | ||
317 | asmlinkage int sys_execve(const char __user *name, | ||
318 | const char __user *const __user *argv, | ||
319 | const char __user *const __user *envp) | ||
320 | { | ||
321 | int error; | ||
322 | char * filename; | ||
323 | struct pt_regs *regs = (struct pt_regs *) &name; | ||
324 | |||
325 | filename = getname(name); | ||
326 | error = PTR_ERR(filename); | ||
327 | if (IS_ERR(filename)) | ||
328 | return error; | ||
329 | error = do_execve(filename, argv, envp, regs); | ||
330 | putname(filename); | ||
331 | return error; | ||
332 | } | ||
333 | |||
334 | unsigned long get_wchan(struct task_struct *p) | ||
335 | { | ||
336 | unsigned long fp, pc; | ||
337 | unsigned long stack_page; | ||
338 | int count = 0; | ||
339 | if (!p || p == current || p->state == TASK_RUNNING) | ||
340 | return 0; | ||
341 | |||
342 | stack_page = (unsigned long)task_stack_page(p); | ||
343 | fp = ((struct switch_stack *)p->thread.ksp)->a6; | ||
344 | do { | ||
345 | if (fp < stack_page+sizeof(struct thread_info) || | ||
346 | fp >= 8184+stack_page) | ||
347 | return 0; | ||
348 | pc = ((unsigned long *)fp)[1]; | ||
349 | if (!in_sched_functions(pc)) | ||
350 | return pc; | ||
351 | fp = *(unsigned long *) fp; | ||
352 | } while (count++ < 16); | ||
353 | return 0; | ||
354 | } | ||
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68k/kernel/process_no.c index e2a63af5d517..e2a63af5d517 100644 --- a/arch/m68knommu/kernel/process.c +++ b/arch/m68k/kernel/process_no.c | |||
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index 0b252683cefb..07a417550e94 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c | |||
@@ -1,277 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/ptrace.c | 2 | #include "ptrace_mm.c" |
3 | * | 3 | #else |
4 | * Copyright (C) 1994 by Hamish Macdonald | 4 | #include "ptrace_no.c" |
5 | * Taken from linux/kernel/ptrace.c and modified for M680x0. | 5 | #endif |
6 | * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds | ||
7 | * | ||
8 | * This file is subject to the terms and conditions of the GNU General | ||
9 | * Public License. See the file COPYING in the main directory of | ||
10 | * this archive for more details. | ||
11 | */ | ||
12 | |||
13 | #include <linux/kernel.h> | ||
14 | #include <linux/sched.h> | ||
15 | #include <linux/mm.h> | ||
16 | #include <linux/smp.h> | ||
17 | #include <linux/errno.h> | ||
18 | #include <linux/ptrace.h> | ||
19 | #include <linux/user.h> | ||
20 | #include <linux/signal.h> | ||
21 | |||
22 | #include <asm/uaccess.h> | ||
23 | #include <asm/page.h> | ||
24 | #include <asm/pgtable.h> | ||
25 | #include <asm/system.h> | ||
26 | #include <asm/processor.h> | ||
27 | |||
28 | /* | ||
29 | * does not yet catch signals sent when the child dies. | ||
30 | * in exit.c or in signal.c. | ||
31 | */ | ||
32 | |||
33 | /* determines which bits in the SR the user has access to. */ | ||
34 | /* 1 = access 0 = no access */ | ||
35 | #define SR_MASK 0x001f | ||
36 | |||
37 | /* sets the trace bits. */ | ||
38 | #define TRACE_BITS 0xC000 | ||
39 | #define T1_BIT 0x8000 | ||
40 | #define T0_BIT 0x4000 | ||
41 | |||
42 | /* Find the stack offset for a register, relative to thread.esp0. */ | ||
43 | #define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) | ||
44 | #define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ | ||
45 | - sizeof(struct switch_stack)) | ||
46 | /* Mapping from PT_xxx to the stack offset at which the register is | ||
47 | saved. Notice that usp has no stack-slot and needs to be treated | ||
48 | specially (see get_reg/put_reg below). */ | ||
49 | static const int regoff[] = { | ||
50 | [0] = PT_REG(d1), | ||
51 | [1] = PT_REG(d2), | ||
52 | [2] = PT_REG(d3), | ||
53 | [3] = PT_REG(d4), | ||
54 | [4] = PT_REG(d5), | ||
55 | [5] = SW_REG(d6), | ||
56 | [6] = SW_REG(d7), | ||
57 | [7] = PT_REG(a0), | ||
58 | [8] = PT_REG(a1), | ||
59 | [9] = PT_REG(a2), | ||
60 | [10] = SW_REG(a3), | ||
61 | [11] = SW_REG(a4), | ||
62 | [12] = SW_REG(a5), | ||
63 | [13] = SW_REG(a6), | ||
64 | [14] = PT_REG(d0), | ||
65 | [15] = -1, | ||
66 | [16] = PT_REG(orig_d0), | ||
67 | [17] = PT_REG(sr), | ||
68 | [18] = PT_REG(pc), | ||
69 | }; | ||
70 | |||
71 | /* | ||
72 | * Get contents of register REGNO in task TASK. | ||
73 | */ | ||
74 | static inline long get_reg(struct task_struct *task, int regno) | ||
75 | { | ||
76 | unsigned long *addr; | ||
77 | |||
78 | if (regno == PT_USP) | ||
79 | addr = &task->thread.usp; | ||
80 | else if (regno < ARRAY_SIZE(regoff)) | ||
81 | addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); | ||
82 | else | ||
83 | return 0; | ||
84 | /* Need to take stkadj into account. */ | ||
85 | if (regno == PT_SR || regno == PT_PC) { | ||
86 | long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); | ||
87 | addr = (unsigned long *) ((unsigned long)addr + stkadj); | ||
88 | /* The sr is actually a 16 bit register. */ | ||
89 | if (regno == PT_SR) | ||
90 | return *(unsigned short *)addr; | ||
91 | } | ||
92 | return *addr; | ||
93 | } | ||
94 | |||
95 | /* | ||
96 | * Write contents of register REGNO in task TASK. | ||
97 | */ | ||
98 | static inline int put_reg(struct task_struct *task, int regno, | ||
99 | unsigned long data) | ||
100 | { | ||
101 | unsigned long *addr; | ||
102 | |||
103 | if (regno == PT_USP) | ||
104 | addr = &task->thread.usp; | ||
105 | else if (regno < ARRAY_SIZE(regoff)) | ||
106 | addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); | ||
107 | else | ||
108 | return -1; | ||
109 | /* Need to take stkadj into account. */ | ||
110 | if (regno == PT_SR || regno == PT_PC) { | ||
111 | long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); | ||
112 | addr = (unsigned long *) ((unsigned long)addr + stkadj); | ||
113 | /* The sr is actually a 16 bit register. */ | ||
114 | if (regno == PT_SR) { | ||
115 | *(unsigned short *)addr = data; | ||
116 | return 0; | ||
117 | } | ||
118 | } | ||
119 | *addr = data; | ||
120 | return 0; | ||
121 | } | ||
122 | |||
123 | /* | ||
124 | * Make sure the single step bit is not set. | ||
125 | */ | ||
126 | static inline void singlestep_disable(struct task_struct *child) | ||
127 | { | ||
128 | unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; | ||
129 | put_reg(child, PT_SR, tmp); | ||
130 | clear_tsk_thread_flag(child, TIF_DELAYED_TRACE); | ||
131 | } | ||
132 | |||
133 | /* | ||
134 | * Called by kernel/ptrace.c when detaching.. | ||
135 | */ | ||
136 | void ptrace_disable(struct task_struct *child) | ||
137 | { | ||
138 | singlestep_disable(child); | ||
139 | } | ||
140 | |||
141 | void user_enable_single_step(struct task_struct *child) | ||
142 | { | ||
143 | unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; | ||
144 | put_reg(child, PT_SR, tmp | T1_BIT); | ||
145 | set_tsk_thread_flag(child, TIF_DELAYED_TRACE); | ||
146 | } | ||
147 | |||
148 | void user_enable_block_step(struct task_struct *child) | ||
149 | { | ||
150 | unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; | ||
151 | put_reg(child, PT_SR, tmp | T0_BIT); | ||
152 | } | ||
153 | |||
154 | void user_disable_single_step(struct task_struct *child) | ||
155 | { | ||
156 | singlestep_disable(child); | ||
157 | } | ||
158 | |||
159 | long arch_ptrace(struct task_struct *child, long request, | ||
160 | unsigned long addr, unsigned long data) | ||
161 | { | ||
162 | unsigned long tmp; | ||
163 | int i, ret = 0; | ||
164 | int regno = addr >> 2; /* temporary hack. */ | ||
165 | unsigned long __user *datap = (unsigned long __user *) data; | ||
166 | |||
167 | switch (request) { | ||
168 | /* read the word at location addr in the USER area. */ | ||
169 | case PTRACE_PEEKUSR: | ||
170 | if (addr & 3) | ||
171 | goto out_eio; | ||
172 | |||
173 | if (regno >= 0 && regno < 19) { | ||
174 | tmp = get_reg(child, regno); | ||
175 | } else if (regno >= 21 && regno < 49) { | ||
176 | tmp = child->thread.fp[regno - 21]; | ||
177 | /* Convert internal fpu reg representation | ||
178 | * into long double format | ||
179 | */ | ||
180 | if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) | ||
181 | tmp = ((tmp & 0xffff0000) << 15) | | ||
182 | ((tmp & 0x0000ffff) << 16); | ||
183 | } else | ||
184 | goto out_eio; | ||
185 | ret = put_user(tmp, datap); | ||
186 | break; | ||
187 | |||
188 | case PTRACE_POKEUSR: | ||
189 | /* write the word at location addr in the USER area */ | ||
190 | if (addr & 3) | ||
191 | goto out_eio; | ||
192 | |||
193 | if (regno == PT_SR) { | ||
194 | data &= SR_MASK; | ||
195 | data |= get_reg(child, PT_SR) & ~SR_MASK; | ||
196 | } | ||
197 | if (regno >= 0 && regno < 19) { | ||
198 | if (put_reg(child, regno, data)) | ||
199 | goto out_eio; | ||
200 | } else if (regno >= 21 && regno < 48) { | ||
201 | /* Convert long double format | ||
202 | * into internal fpu reg representation | ||
203 | */ | ||
204 | if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) { | ||
205 | data <<= 15; | ||
206 | data = (data & 0xffff0000) | | ||
207 | ((data & 0x0000ffff) >> 1); | ||
208 | } | ||
209 | child->thread.fp[regno - 21] = data; | ||
210 | } else | ||
211 | goto out_eio; | ||
212 | break; | ||
213 | |||
214 | case PTRACE_GETREGS: /* Get all gp regs from the child. */ | ||
215 | for (i = 0; i < 19; i++) { | ||
216 | tmp = get_reg(child, i); | ||
217 | ret = put_user(tmp, datap); | ||
218 | if (ret) | ||
219 | break; | ||
220 | datap++; | ||
221 | } | ||
222 | break; | ||
223 | |||
224 | case PTRACE_SETREGS: /* Set all gp regs in the child. */ | ||
225 | for (i = 0; i < 19; i++) { | ||
226 | ret = get_user(tmp, datap); | ||
227 | if (ret) | ||
228 | break; | ||
229 | if (i == PT_SR) { | ||
230 | tmp &= SR_MASK; | ||
231 | tmp |= get_reg(child, PT_SR) & ~SR_MASK; | ||
232 | } | ||
233 | put_reg(child, i, tmp); | ||
234 | datap++; | ||
235 | } | ||
236 | break; | ||
237 | |||
238 | case PTRACE_GETFPREGS: /* Get the child FPU state. */ | ||
239 | if (copy_to_user(datap, &child->thread.fp, | ||
240 | sizeof(struct user_m68kfp_struct))) | ||
241 | ret = -EFAULT; | ||
242 | break; | ||
243 | |||
244 | case PTRACE_SETFPREGS: /* Set the child FPU state. */ | ||
245 | if (copy_from_user(&child->thread.fp, datap, | ||
246 | sizeof(struct user_m68kfp_struct))) | ||
247 | ret = -EFAULT; | ||
248 | break; | ||
249 | |||
250 | case PTRACE_GET_THREAD_AREA: | ||
251 | ret = put_user(task_thread_info(child)->tp_value, datap); | ||
252 | break; | ||
253 | |||
254 | default: | ||
255 | ret = ptrace_request(child, request, addr, data); | ||
256 | break; | ||
257 | } | ||
258 | |||
259 | return ret; | ||
260 | out_eio: | ||
261 | return -EIO; | ||
262 | } | ||
263 | |||
264 | asmlinkage void syscall_trace(void) | ||
265 | { | ||
266 | ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) | ||
267 | ? 0x80 : 0)); | ||
268 | /* | ||
269 | * this isn't the same as continuing with a signal, but it will do | ||
270 | * for normal use. strace only continues with a signal if the | ||
271 | * stopping signal is not SIGTRAP. -brl | ||
272 | */ | ||
273 | if (current->exit_code) { | ||
274 | send_sig(current->exit_code, current, 1); | ||
275 | current->exit_code = 0; | ||
276 | } | ||
277 | } | ||
diff --git a/arch/m68k/kernel/ptrace_mm.c b/arch/m68k/kernel/ptrace_mm.c new file mode 100644 index 000000000000..0b252683cefb --- /dev/null +++ b/arch/m68k/kernel/ptrace_mm.c | |||
@@ -0,0 +1,277 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/ptrace.c | ||
3 | * | ||
4 | * Copyright (C) 1994 by Hamish Macdonald | ||
5 | * Taken from linux/kernel/ptrace.c and modified for M680x0. | ||
6 | * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds | ||
7 | * | ||
8 | * This file is subject to the terms and conditions of the GNU General | ||
9 | * Public License. See the file COPYING in the main directory of | ||
10 | * this archive for more details. | ||
11 | */ | ||
12 | |||
13 | #include <linux/kernel.h> | ||
14 | #include <linux/sched.h> | ||
15 | #include <linux/mm.h> | ||
16 | #include <linux/smp.h> | ||
17 | #include <linux/errno.h> | ||
18 | #include <linux/ptrace.h> | ||
19 | #include <linux/user.h> | ||
20 | #include <linux/signal.h> | ||
21 | |||
22 | #include <asm/uaccess.h> | ||
23 | #include <asm/page.h> | ||
24 | #include <asm/pgtable.h> | ||
25 | #include <asm/system.h> | ||
26 | #include <asm/processor.h> | ||
27 | |||
28 | /* | ||
29 | * does not yet catch signals sent when the child dies. | ||
30 | * in exit.c or in signal.c. | ||
31 | */ | ||
32 | |||
33 | /* determines which bits in the SR the user has access to. */ | ||
34 | /* 1 = access 0 = no access */ | ||
35 | #define SR_MASK 0x001f | ||
36 | |||
37 | /* sets the trace bits. */ | ||
38 | #define TRACE_BITS 0xC000 | ||
39 | #define T1_BIT 0x8000 | ||
40 | #define T0_BIT 0x4000 | ||
41 | |||
42 | /* Find the stack offset for a register, relative to thread.esp0. */ | ||
43 | #define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) | ||
44 | #define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ | ||
45 | - sizeof(struct switch_stack)) | ||
46 | /* Mapping from PT_xxx to the stack offset at which the register is | ||
47 | saved. Notice that usp has no stack-slot and needs to be treated | ||
48 | specially (see get_reg/put_reg below). */ | ||
49 | static const int regoff[] = { | ||
50 | [0] = PT_REG(d1), | ||
51 | [1] = PT_REG(d2), | ||
52 | [2] = PT_REG(d3), | ||
53 | [3] = PT_REG(d4), | ||
54 | [4] = PT_REG(d5), | ||
55 | [5] = SW_REG(d6), | ||
56 | [6] = SW_REG(d7), | ||
57 | [7] = PT_REG(a0), | ||
58 | [8] = PT_REG(a1), | ||
59 | [9] = PT_REG(a2), | ||
60 | [10] = SW_REG(a3), | ||
61 | [11] = SW_REG(a4), | ||
62 | [12] = SW_REG(a5), | ||
63 | [13] = SW_REG(a6), | ||
64 | [14] = PT_REG(d0), | ||
65 | [15] = -1, | ||
66 | [16] = PT_REG(orig_d0), | ||
67 | [17] = PT_REG(sr), | ||
68 | [18] = PT_REG(pc), | ||
69 | }; | ||
70 | |||
71 | /* | ||
72 | * Get contents of register REGNO in task TASK. | ||
73 | */ | ||
74 | static inline long get_reg(struct task_struct *task, int regno) | ||
75 | { | ||
76 | unsigned long *addr; | ||
77 | |||
78 | if (regno == PT_USP) | ||
79 | addr = &task->thread.usp; | ||
80 | else if (regno < ARRAY_SIZE(regoff)) | ||
81 | addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); | ||
82 | else | ||
83 | return 0; | ||
84 | /* Need to take stkadj into account. */ | ||
85 | if (regno == PT_SR || regno == PT_PC) { | ||
86 | long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); | ||
87 | addr = (unsigned long *) ((unsigned long)addr + stkadj); | ||
88 | /* The sr is actually a 16 bit register. */ | ||
89 | if (regno == PT_SR) | ||
90 | return *(unsigned short *)addr; | ||
91 | } | ||
92 | return *addr; | ||
93 | } | ||
94 | |||
95 | /* | ||
96 | * Write contents of register REGNO in task TASK. | ||
97 | */ | ||
98 | static inline int put_reg(struct task_struct *task, int regno, | ||
99 | unsigned long data) | ||
100 | { | ||
101 | unsigned long *addr; | ||
102 | |||
103 | if (regno == PT_USP) | ||
104 | addr = &task->thread.usp; | ||
105 | else if (regno < ARRAY_SIZE(regoff)) | ||
106 | addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); | ||
107 | else | ||
108 | return -1; | ||
109 | /* Need to take stkadj into account. */ | ||
110 | if (regno == PT_SR || regno == PT_PC) { | ||
111 | long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); | ||
112 | addr = (unsigned long *) ((unsigned long)addr + stkadj); | ||
113 | /* The sr is actually a 16 bit register. */ | ||
114 | if (regno == PT_SR) { | ||
115 | *(unsigned short *)addr = data; | ||
116 | return 0; | ||
117 | } | ||
118 | } | ||
119 | *addr = data; | ||
120 | return 0; | ||
121 | } | ||
122 | |||
123 | /* | ||
124 | * Make sure the single step bit is not set. | ||
125 | */ | ||
126 | static inline void singlestep_disable(struct task_struct *child) | ||
127 | { | ||
128 | unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; | ||
129 | put_reg(child, PT_SR, tmp); | ||
130 | clear_tsk_thread_flag(child, TIF_DELAYED_TRACE); | ||
131 | } | ||
132 | |||
133 | /* | ||
134 | * Called by kernel/ptrace.c when detaching.. | ||
135 | */ | ||
136 | void ptrace_disable(struct task_struct *child) | ||
137 | { | ||
138 | singlestep_disable(child); | ||
139 | } | ||
140 | |||
141 | void user_enable_single_step(struct task_struct *child) | ||
142 | { | ||
143 | unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; | ||
144 | put_reg(child, PT_SR, tmp | T1_BIT); | ||
145 | set_tsk_thread_flag(child, TIF_DELAYED_TRACE); | ||
146 | } | ||
147 | |||
148 | void user_enable_block_step(struct task_struct *child) | ||
149 | { | ||
150 | unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; | ||
151 | put_reg(child, PT_SR, tmp | T0_BIT); | ||
152 | } | ||
153 | |||
154 | void user_disable_single_step(struct task_struct *child) | ||
155 | { | ||
156 | singlestep_disable(child); | ||
157 | } | ||
158 | |||
159 | long arch_ptrace(struct task_struct *child, long request, | ||
160 | unsigned long addr, unsigned long data) | ||
161 | { | ||
162 | unsigned long tmp; | ||
163 | int i, ret = 0; | ||
164 | int regno = addr >> 2; /* temporary hack. */ | ||
165 | unsigned long __user *datap = (unsigned long __user *) data; | ||
166 | |||
167 | switch (request) { | ||
168 | /* read the word at location addr in the USER area. */ | ||
169 | case PTRACE_PEEKUSR: | ||
170 | if (addr & 3) | ||
171 | goto out_eio; | ||
172 | |||
173 | if (regno >= 0 && regno < 19) { | ||
174 | tmp = get_reg(child, regno); | ||
175 | } else if (regno >= 21 && regno < 49) { | ||
176 | tmp = child->thread.fp[regno - 21]; | ||
177 | /* Convert internal fpu reg representation | ||
178 | * into long double format | ||
179 | */ | ||
180 | if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) | ||
181 | tmp = ((tmp & 0xffff0000) << 15) | | ||
182 | ((tmp & 0x0000ffff) << 16); | ||
183 | } else | ||
184 | goto out_eio; | ||
185 | ret = put_user(tmp, datap); | ||
186 | break; | ||
187 | |||
188 | case PTRACE_POKEUSR: | ||
189 | /* write the word at location addr in the USER area */ | ||
190 | if (addr & 3) | ||
191 | goto out_eio; | ||
192 | |||
193 | if (regno == PT_SR) { | ||
194 | data &= SR_MASK; | ||
195 | data |= get_reg(child, PT_SR) & ~SR_MASK; | ||
196 | } | ||
197 | if (regno >= 0 && regno < 19) { | ||
198 | if (put_reg(child, regno, data)) | ||
199 | goto out_eio; | ||
200 | } else if (regno >= 21 && regno < 48) { | ||
201 | /* Convert long double format | ||
202 | * into internal fpu reg representation | ||
203 | */ | ||
204 | if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) { | ||
205 | data <<= 15; | ||
206 | data = (data & 0xffff0000) | | ||
207 | ((data & 0x0000ffff) >> 1); | ||
208 | } | ||
209 | child->thread.fp[regno - 21] = data; | ||
210 | } else | ||
211 | goto out_eio; | ||
212 | break; | ||
213 | |||
214 | case PTRACE_GETREGS: /* Get all gp regs from the child. */ | ||
215 | for (i = 0; i < 19; i++) { | ||
216 | tmp = get_reg(child, i); | ||
217 | ret = put_user(tmp, datap); | ||
218 | if (ret) | ||
219 | break; | ||
220 | datap++; | ||
221 | } | ||
222 | break; | ||
223 | |||
224 | case PTRACE_SETREGS: /* Set all gp regs in the child. */ | ||
225 | for (i = 0; i < 19; i++) { | ||
226 | ret = get_user(tmp, datap); | ||
227 | if (ret) | ||
228 | break; | ||
229 | if (i == PT_SR) { | ||
230 | tmp &= SR_MASK; | ||
231 | tmp |= get_reg(child, PT_SR) & ~SR_MASK; | ||
232 | } | ||
233 | put_reg(child, i, tmp); | ||
234 | datap++; | ||
235 | } | ||
236 | break; | ||
237 | |||
238 | case PTRACE_GETFPREGS: /* Get the child FPU state. */ | ||
239 | if (copy_to_user(datap, &child->thread.fp, | ||
240 | sizeof(struct user_m68kfp_struct))) | ||
241 | ret = -EFAULT; | ||
242 | break; | ||
243 | |||
244 | case PTRACE_SETFPREGS: /* Set the child FPU state. */ | ||
245 | if (copy_from_user(&child->thread.fp, datap, | ||
246 | sizeof(struct user_m68kfp_struct))) | ||
247 | ret = -EFAULT; | ||
248 | break; | ||
249 | |||
250 | case PTRACE_GET_THREAD_AREA: | ||
251 | ret = put_user(task_thread_info(child)->tp_value, datap); | ||
252 | break; | ||
253 | |||
254 | default: | ||
255 | ret = ptrace_request(child, request, addr, data); | ||
256 | break; | ||
257 | } | ||
258 | |||
259 | return ret; | ||
260 | out_eio: | ||
261 | return -EIO; | ||
262 | } | ||
263 | |||
264 | asmlinkage void syscall_trace(void) | ||
265 | { | ||
266 | ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) | ||
267 | ? 0x80 : 0)); | ||
268 | /* | ||
269 | * this isn't the same as continuing with a signal, but it will do | ||
270 | * for normal use. strace only continues with a signal if the | ||
271 | * stopping signal is not SIGTRAP. -brl | ||
272 | */ | ||
273 | if (current->exit_code) { | ||
274 | send_sig(current->exit_code, current, 1); | ||
275 | current->exit_code = 0; | ||
276 | } | ||
277 | } | ||
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68k/kernel/ptrace_no.c index 6709fb707335..6709fb707335 100644 --- a/arch/m68knommu/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace_no.c | |||
diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c index 334d83640376..4bf129f1d2e2 100644 --- a/arch/m68k/kernel/setup.c +++ b/arch/m68k/kernel/setup.c | |||
@@ -1,533 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/setup.c | 2 | #include "setup_mm.c" |
3 | * | ||
4 | * Copyright (C) 1995 Hamish Macdonald | ||
5 | */ | ||
6 | |||
7 | /* | ||
8 | * This file handles the architecture-dependent parts of system setup | ||
9 | */ | ||
10 | |||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/mm.h> | ||
13 | #include <linux/sched.h> | ||
14 | #include <linux/delay.h> | ||
15 | #include <linux/interrupt.h> | ||
16 | #include <linux/fs.h> | ||
17 | #include <linux/console.h> | ||
18 | #include <linux/genhd.h> | ||
19 | #include <linux/errno.h> | ||
20 | #include <linux/string.h> | ||
21 | #include <linux/init.h> | ||
22 | #include <linux/bootmem.h> | ||
23 | #include <linux/proc_fs.h> | ||
24 | #include <linux/seq_file.h> | ||
25 | #include <linux/module.h> | ||
26 | #include <linux/initrd.h> | ||
27 | |||
28 | #include <asm/bootinfo.h> | ||
29 | #include <asm/sections.h> | ||
30 | #include <asm/setup.h> | ||
31 | #include <asm/fpu.h> | ||
32 | #include <asm/irq.h> | ||
33 | #include <asm/io.h> | ||
34 | #include <asm/machdep.h> | ||
35 | #ifdef CONFIG_AMIGA | ||
36 | #include <asm/amigahw.h> | ||
37 | #endif | ||
38 | #ifdef CONFIG_ATARI | ||
39 | #include <asm/atarihw.h> | ||
40 | #include <asm/atari_stram.h> | ||
41 | #endif | ||
42 | #ifdef CONFIG_SUN3X | ||
43 | #include <asm/dvma.h> | ||
44 | #endif | ||
45 | #include <asm/natfeat.h> | ||
46 | |||
47 | #if !FPSTATESIZE || !NR_IRQS | ||
48 | #warning No CPU/platform type selected, your kernel will not work! | ||
49 | #warning Are you building an allnoconfig kernel? | ||
50 | #endif | ||
51 | |||
52 | unsigned long m68k_machtype; | ||
53 | EXPORT_SYMBOL(m68k_machtype); | ||
54 | unsigned long m68k_cputype; | ||
55 | EXPORT_SYMBOL(m68k_cputype); | ||
56 | unsigned long m68k_fputype; | ||
57 | unsigned long m68k_mmutype; | ||
58 | EXPORT_SYMBOL(m68k_mmutype); | ||
59 | #ifdef CONFIG_VME | ||
60 | unsigned long vme_brdtype; | ||
61 | EXPORT_SYMBOL(vme_brdtype); | ||
62 | #endif | ||
63 | |||
64 | int m68k_is040or060; | ||
65 | EXPORT_SYMBOL(m68k_is040or060); | ||
66 | |||
67 | extern unsigned long availmem; | ||
68 | |||
69 | int m68k_num_memory; | ||
70 | EXPORT_SYMBOL(m68k_num_memory); | ||
71 | int m68k_realnum_memory; | ||
72 | EXPORT_SYMBOL(m68k_realnum_memory); | ||
73 | unsigned long m68k_memoffset; | ||
74 | struct mem_info m68k_memory[NUM_MEMINFO]; | ||
75 | EXPORT_SYMBOL(m68k_memory); | ||
76 | |||
77 | struct mem_info m68k_ramdisk; | ||
78 | |||
79 | static char m68k_command_line[CL_SIZE]; | ||
80 | |||
81 | void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL; | ||
82 | /* machine dependent irq functions */ | ||
83 | void (*mach_init_IRQ) (void) __initdata = NULL; | ||
84 | void (*mach_get_model) (char *model); | ||
85 | void (*mach_get_hardware_list) (struct seq_file *m); | ||
86 | /* machine dependent timer functions */ | ||
87 | unsigned long (*mach_gettimeoffset) (void); | ||
88 | int (*mach_hwclk) (int, struct rtc_time*); | ||
89 | EXPORT_SYMBOL(mach_hwclk); | ||
90 | int (*mach_set_clock_mmss) (unsigned long); | ||
91 | unsigned int (*mach_get_ss)(void); | ||
92 | int (*mach_get_rtc_pll)(struct rtc_pll_info *); | ||
93 | int (*mach_set_rtc_pll)(struct rtc_pll_info *); | ||
94 | EXPORT_SYMBOL(mach_get_ss); | ||
95 | EXPORT_SYMBOL(mach_get_rtc_pll); | ||
96 | EXPORT_SYMBOL(mach_set_rtc_pll); | ||
97 | void (*mach_reset)( void ); | ||
98 | void (*mach_halt)( void ); | ||
99 | void (*mach_power_off)( void ); | ||
100 | long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */ | ||
101 | #ifdef CONFIG_HEARTBEAT | ||
102 | void (*mach_heartbeat) (int); | ||
103 | EXPORT_SYMBOL(mach_heartbeat); | ||
104 | #endif | ||
105 | #ifdef CONFIG_M68K_L2_CACHE | ||
106 | void (*mach_l2_flush) (int); | ||
107 | #endif | ||
108 | #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) | ||
109 | void (*mach_beep)(unsigned int, unsigned int); | ||
110 | EXPORT_SYMBOL(mach_beep); | ||
111 | #endif | ||
112 | #if defined(CONFIG_ISA) && defined(MULTI_ISA) | ||
113 | int isa_type; | ||
114 | int isa_sex; | ||
115 | EXPORT_SYMBOL(isa_type); | ||
116 | EXPORT_SYMBOL(isa_sex); | ||
117 | #endif | ||
118 | |||
119 | extern int amiga_parse_bootinfo(const struct bi_record *); | ||
120 | extern int atari_parse_bootinfo(const struct bi_record *); | ||
121 | extern int mac_parse_bootinfo(const struct bi_record *); | ||
122 | extern int q40_parse_bootinfo(const struct bi_record *); | ||
123 | extern int bvme6000_parse_bootinfo(const struct bi_record *); | ||
124 | extern int mvme16x_parse_bootinfo(const struct bi_record *); | ||
125 | extern int mvme147_parse_bootinfo(const struct bi_record *); | ||
126 | extern int hp300_parse_bootinfo(const struct bi_record *); | ||
127 | extern int apollo_parse_bootinfo(const struct bi_record *); | ||
128 | |||
129 | extern void config_amiga(void); | ||
130 | extern void config_atari(void); | ||
131 | extern void config_mac(void); | ||
132 | extern void config_sun3(void); | ||
133 | extern void config_apollo(void); | ||
134 | extern void config_mvme147(void); | ||
135 | extern void config_mvme16x(void); | ||
136 | extern void config_bvme6000(void); | ||
137 | extern void config_hp300(void); | ||
138 | extern void config_q40(void); | ||
139 | extern void config_sun3x(void); | ||
140 | |||
141 | #define MASK_256K 0xfffc0000 | ||
142 | |||
143 | extern void paging_init(void); | ||
144 | |||
145 | static void __init m68k_parse_bootinfo(const struct bi_record *record) | ||
146 | { | ||
147 | while (record->tag != BI_LAST) { | ||
148 | int unknown = 0; | ||
149 | const unsigned long *data = record->data; | ||
150 | |||
151 | switch (record->tag) { | ||
152 | case BI_MACHTYPE: | ||
153 | case BI_CPUTYPE: | ||
154 | case BI_FPUTYPE: | ||
155 | case BI_MMUTYPE: | ||
156 | /* Already set up by head.S */ | ||
157 | break; | ||
158 | |||
159 | case BI_MEMCHUNK: | ||
160 | if (m68k_num_memory < NUM_MEMINFO) { | ||
161 | m68k_memory[m68k_num_memory].addr = data[0]; | ||
162 | m68k_memory[m68k_num_memory].size = data[1]; | ||
163 | m68k_num_memory++; | ||
164 | } else | ||
165 | printk("m68k_parse_bootinfo: too many memory chunks\n"); | ||
166 | break; | ||
167 | |||
168 | case BI_RAMDISK: | ||
169 | m68k_ramdisk.addr = data[0]; | ||
170 | m68k_ramdisk.size = data[1]; | ||
171 | break; | ||
172 | |||
173 | case BI_COMMAND_LINE: | ||
174 | strlcpy(m68k_command_line, (const char *)data, | ||
175 | sizeof(m68k_command_line)); | ||
176 | break; | ||
177 | |||
178 | default: | ||
179 | if (MACH_IS_AMIGA) | ||
180 | unknown = amiga_parse_bootinfo(record); | ||
181 | else if (MACH_IS_ATARI) | ||
182 | unknown = atari_parse_bootinfo(record); | ||
183 | else if (MACH_IS_MAC) | ||
184 | unknown = mac_parse_bootinfo(record); | ||
185 | else if (MACH_IS_Q40) | ||
186 | unknown = q40_parse_bootinfo(record); | ||
187 | else if (MACH_IS_BVME6000) | ||
188 | unknown = bvme6000_parse_bootinfo(record); | ||
189 | else if (MACH_IS_MVME16x) | ||
190 | unknown = mvme16x_parse_bootinfo(record); | ||
191 | else if (MACH_IS_MVME147) | ||
192 | unknown = mvme147_parse_bootinfo(record); | ||
193 | else if (MACH_IS_HP300) | ||
194 | unknown = hp300_parse_bootinfo(record); | ||
195 | else if (MACH_IS_APOLLO) | ||
196 | unknown = apollo_parse_bootinfo(record); | ||
197 | else | ||
198 | unknown = 1; | ||
199 | } | ||
200 | if (unknown) | ||
201 | printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", | ||
202 | record->tag); | ||
203 | record = (struct bi_record *)((unsigned long)record + | ||
204 | record->size); | ||
205 | } | ||
206 | |||
207 | m68k_realnum_memory = m68k_num_memory; | ||
208 | #ifdef CONFIG_SINGLE_MEMORY_CHUNK | ||
209 | if (m68k_num_memory > 1) { | ||
210 | printk("Ignoring last %i chunks of physical memory\n", | ||
211 | (m68k_num_memory - 1)); | ||
212 | m68k_num_memory = 1; | ||
213 | } | ||
214 | #endif | ||
215 | } | ||
216 | |||
217 | void __init setup_arch(char **cmdline_p) | ||
218 | { | ||
219 | int i; | ||
220 | |||
221 | /* The bootinfo is located right after the kernel bss */ | ||
222 | m68k_parse_bootinfo((const struct bi_record *)_end); | ||
223 | |||
224 | if (CPU_IS_040) | ||
225 | m68k_is040or060 = 4; | ||
226 | else if (CPU_IS_060) | ||
227 | m68k_is040or060 = 6; | ||
228 | |||
229 | /* FIXME: m68k_fputype is passed in by Penguin booter, which can | ||
230 | * be confused by software FPU emulation. BEWARE. | ||
231 | * We should really do our own FPU check at startup. | ||
232 | * [what do we do with buggy 68LC040s? if we have problems | ||
233 | * with them, we should add a test to check_bugs() below] */ | ||
234 | #ifndef CONFIG_M68KFPU_EMU_ONLY | ||
235 | /* clear the fpu if we have one */ | ||
236 | if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) { | ||
237 | volatile int zero = 0; | ||
238 | asm volatile ("frestore %0" : : "m" (zero)); | ||
239 | } | ||
240 | #endif | ||
241 | |||
242 | if (CPU_IS_060) { | ||
243 | u32 pcr; | ||
244 | |||
245 | asm (".chip 68060; movec %%pcr,%0; .chip 68k" | ||
246 | : "=d" (pcr)); | ||
247 | if (((pcr >> 8) & 0xff) <= 5) { | ||
248 | printk("Enabling workaround for errata I14\n"); | ||
249 | asm (".chip 68060; movec %0,%%pcr; .chip 68k" | ||
250 | : : "d" (pcr | 0x20)); | ||
251 | } | ||
252 | } | ||
253 | |||
254 | init_mm.start_code = PAGE_OFFSET; | ||
255 | init_mm.end_code = (unsigned long)_etext; | ||
256 | init_mm.end_data = (unsigned long)_edata; | ||
257 | init_mm.brk = (unsigned long)_end; | ||
258 | |||
259 | *cmdline_p = m68k_command_line; | ||
260 | memcpy(boot_command_line, *cmdline_p, CL_SIZE); | ||
261 | |||
262 | parse_early_param(); | ||
263 | |||
264 | #ifdef CONFIG_DUMMY_CONSOLE | ||
265 | conswitchp = &dummy_con; | ||
266 | #endif | ||
267 | |||
268 | switch (m68k_machtype) { | ||
269 | #ifdef CONFIG_AMIGA | ||
270 | case MACH_AMIGA: | ||
271 | config_amiga(); | ||
272 | break; | ||
273 | #endif | ||
274 | #ifdef CONFIG_ATARI | ||
275 | case MACH_ATARI: | ||
276 | config_atari(); | ||
277 | break; | ||
278 | #endif | ||
279 | #ifdef CONFIG_MAC | ||
280 | case MACH_MAC: | ||
281 | config_mac(); | ||
282 | break; | ||
283 | #endif | ||
284 | #ifdef CONFIG_SUN3 | ||
285 | case MACH_SUN3: | ||
286 | config_sun3(); | ||
287 | break; | ||
288 | #endif | ||
289 | #ifdef CONFIG_APOLLO | ||
290 | case MACH_APOLLO: | ||
291 | config_apollo(); | ||
292 | break; | ||
293 | #endif | ||
294 | #ifdef CONFIG_MVME147 | ||
295 | case MACH_MVME147: | ||
296 | config_mvme147(); | ||
297 | break; | ||
298 | #endif | ||
299 | #ifdef CONFIG_MVME16x | ||
300 | case MACH_MVME16x: | ||
301 | config_mvme16x(); | ||
302 | break; | ||
303 | #endif | ||
304 | #ifdef CONFIG_BVME6000 | ||
305 | case MACH_BVME6000: | ||
306 | config_bvme6000(); | ||
307 | break; | ||
308 | #endif | ||
309 | #ifdef CONFIG_HP300 | ||
310 | case MACH_HP300: | ||
311 | config_hp300(); | ||
312 | break; | ||
313 | #endif | ||
314 | #ifdef CONFIG_Q40 | ||
315 | case MACH_Q40: | ||
316 | config_q40(); | ||
317 | break; | ||
318 | #endif | ||
319 | #ifdef CONFIG_SUN3X | ||
320 | case MACH_SUN3X: | ||
321 | config_sun3x(); | ||
322 | break; | ||
323 | #endif | ||
324 | default: | ||
325 | panic("No configuration setup"); | ||
326 | } | ||
327 | |||
328 | #ifdef CONFIG_NATFEAT | ||
329 | nf_init(); | ||
330 | #endif | ||
331 | |||
332 | paging_init(); | ||
333 | |||
334 | #ifndef CONFIG_SUN3 | ||
335 | for (i = 1; i < m68k_num_memory; i++) | ||
336 | free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr, | ||
337 | m68k_memory[i].size); | ||
338 | #ifdef CONFIG_BLK_DEV_INITRD | ||
339 | if (m68k_ramdisk.size) { | ||
340 | reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)), | ||
341 | m68k_ramdisk.addr, m68k_ramdisk.size, | ||
342 | BOOTMEM_DEFAULT); | ||
343 | initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); | ||
344 | initrd_end = initrd_start + m68k_ramdisk.size; | ||
345 | printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end); | ||
346 | } | ||
347 | #endif | ||
348 | |||
349 | #ifdef CONFIG_ATARI | ||
350 | if (MACH_IS_ATARI) | ||
351 | atari_stram_reserve_pages((void *)availmem); | ||
352 | #endif | ||
353 | #ifdef CONFIG_SUN3X | ||
354 | if (MACH_IS_SUN3X) { | ||
355 | dvma_init(); | ||
356 | } | ||
357 | #endif | ||
358 | |||
359 | #endif /* !CONFIG_SUN3 */ | ||
360 | |||
361 | /* set ISA defs early as possible */ | ||
362 | #if defined(CONFIG_ISA) && defined(MULTI_ISA) | ||
363 | if (MACH_IS_Q40) { | ||
364 | isa_type = ISA_TYPE_Q40; | ||
365 | isa_sex = 0; | ||
366 | } | ||
367 | #ifdef CONFIG_AMIGA_PCMCIA | ||
368 | if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) { | ||
369 | isa_type = ISA_TYPE_AG; | ||
370 | isa_sex = 1; | ||
371 | } | ||
372 | #endif | ||
373 | #endif | ||
374 | } | ||
375 | |||
376 | static int show_cpuinfo(struct seq_file *m, void *v) | ||
377 | { | ||
378 | const char *cpu, *mmu, *fpu; | ||
379 | unsigned long clockfreq, clockfactor; | ||
380 | |||
381 | #define LOOP_CYCLES_68020 (8) | ||
382 | #define LOOP_CYCLES_68030 (8) | ||
383 | #define LOOP_CYCLES_68040 (3) | ||
384 | #define LOOP_CYCLES_68060 (1) | ||
385 | |||
386 | if (CPU_IS_020) { | ||
387 | cpu = "68020"; | ||
388 | clockfactor = LOOP_CYCLES_68020; | ||
389 | } else if (CPU_IS_030) { | ||
390 | cpu = "68030"; | ||
391 | clockfactor = LOOP_CYCLES_68030; | ||
392 | } else if (CPU_IS_040) { | ||
393 | cpu = "68040"; | ||
394 | clockfactor = LOOP_CYCLES_68040; | ||
395 | } else if (CPU_IS_060) { | ||
396 | cpu = "68060"; | ||
397 | clockfactor = LOOP_CYCLES_68060; | ||
398 | } else { | ||
399 | cpu = "680x0"; | ||
400 | clockfactor = 0; | ||
401 | } | ||
402 | |||
403 | #ifdef CONFIG_M68KFPU_EMU_ONLY | ||
404 | fpu = "none(soft float)"; | ||
405 | #else | 3 | #else |
406 | if (m68k_fputype & FPU_68881) | 4 | #include "setup_no.c" |
407 | fpu = "68881"; | ||
408 | else if (m68k_fputype & FPU_68882) | ||
409 | fpu = "68882"; | ||
410 | else if (m68k_fputype & FPU_68040) | ||
411 | fpu = "68040"; | ||
412 | else if (m68k_fputype & FPU_68060) | ||
413 | fpu = "68060"; | ||
414 | else if (m68k_fputype & FPU_SUNFPA) | ||
415 | fpu = "Sun FPA"; | ||
416 | else | ||
417 | fpu = "none"; | ||
418 | #endif | ||
419 | |||
420 | if (m68k_mmutype & MMU_68851) | ||
421 | mmu = "68851"; | ||
422 | else if (m68k_mmutype & MMU_68030) | ||
423 | mmu = "68030"; | ||
424 | else if (m68k_mmutype & MMU_68040) | ||
425 | mmu = "68040"; | ||
426 | else if (m68k_mmutype & MMU_68060) | ||
427 | mmu = "68060"; | ||
428 | else if (m68k_mmutype & MMU_SUN3) | ||
429 | mmu = "Sun-3"; | ||
430 | else if (m68k_mmutype & MMU_APOLLO) | ||
431 | mmu = "Apollo"; | ||
432 | else | ||
433 | mmu = "unknown"; | ||
434 | |||
435 | clockfreq = loops_per_jiffy * HZ * clockfactor; | ||
436 | |||
437 | seq_printf(m, "CPU:\t\t%s\n" | ||
438 | "MMU:\t\t%s\n" | ||
439 | "FPU:\t\t%s\n" | ||
440 | "Clocking:\t%lu.%1luMHz\n" | ||
441 | "BogoMips:\t%lu.%02lu\n" | ||
442 | "Calibration:\t%lu loops\n", | ||
443 | cpu, mmu, fpu, | ||
444 | clockfreq/1000000,(clockfreq/100000)%10, | ||
445 | loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100, | ||
446 | loops_per_jiffy); | ||
447 | return 0; | ||
448 | } | ||
449 | |||
450 | static void *c_start(struct seq_file *m, loff_t *pos) | ||
451 | { | ||
452 | return *pos < 1 ? (void *)1 : NULL; | ||
453 | } | ||
454 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | ||
455 | { | ||
456 | ++*pos; | ||
457 | return NULL; | ||
458 | } | ||
459 | static void c_stop(struct seq_file *m, void *v) | ||
460 | { | ||
461 | } | ||
462 | const struct seq_operations cpuinfo_op = { | ||
463 | .start = c_start, | ||
464 | .next = c_next, | ||
465 | .stop = c_stop, | ||
466 | .show = show_cpuinfo, | ||
467 | }; | ||
468 | |||
469 | #ifdef CONFIG_PROC_HARDWARE | ||
470 | static int hardware_proc_show(struct seq_file *m, void *v) | ||
471 | { | ||
472 | char model[80]; | ||
473 | unsigned long mem; | ||
474 | int i; | ||
475 | |||
476 | if (mach_get_model) | ||
477 | mach_get_model(model); | ||
478 | else | ||
479 | strcpy(model, "Unknown m68k"); | ||
480 | |||
481 | seq_printf(m, "Model:\t\t%s\n", model); | ||
482 | for (mem = 0, i = 0; i < m68k_num_memory; i++) | ||
483 | mem += m68k_memory[i].size; | ||
484 | seq_printf(m, "System Memory:\t%ldK\n", mem >> 10); | ||
485 | |||
486 | if (mach_get_hardware_list) | ||
487 | mach_get_hardware_list(m); | ||
488 | |||
489 | return 0; | ||
490 | } | ||
491 | |||
492 | static int hardware_proc_open(struct inode *inode, struct file *file) | ||
493 | { | ||
494 | return single_open(file, hardware_proc_show, NULL); | ||
495 | } | ||
496 | |||
497 | static const struct file_operations hardware_proc_fops = { | ||
498 | .open = hardware_proc_open, | ||
499 | .read = seq_read, | ||
500 | .llseek = seq_lseek, | ||
501 | .release = single_release, | ||
502 | }; | ||
503 | |||
504 | static int __init proc_hardware_init(void) | ||
505 | { | ||
506 | proc_create("hardware", 0, NULL, &hardware_proc_fops); | ||
507 | return 0; | ||
508 | } | ||
509 | module_init(proc_hardware_init); | ||
510 | #endif | 5 | #endif |
511 | |||
512 | void check_bugs(void) | ||
513 | { | ||
514 | #ifndef CONFIG_M68KFPU_EMU | ||
515 | if (m68k_fputype == 0) { | ||
516 | printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " | ||
517 | "WHICH IS REQUIRED BY LINUX/M68K ***\n"); | ||
518 | printk(KERN_EMERG "Upgrade your hardware or join the FPU " | ||
519 | "emulation project\n"); | ||
520 | panic("no FPU"); | ||
521 | } | ||
522 | #endif /* !CONFIG_M68KFPU_EMU */ | ||
523 | } | ||
524 | |||
525 | #ifdef CONFIG_ADB | ||
526 | static int __init adb_probe_sync_enable (char *str) { | ||
527 | extern int __adb_probe_sync; | ||
528 | __adb_probe_sync = 1; | ||
529 | return 1; | ||
530 | } | ||
531 | |||
532 | __setup("adb_sync", adb_probe_sync_enable); | ||
533 | #endif /* CONFIG_ADB */ | ||
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c new file mode 100644 index 000000000000..334d83640376 --- /dev/null +++ b/arch/m68k/kernel/setup_mm.c | |||
@@ -0,0 +1,533 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/setup.c | ||
3 | * | ||
4 | * Copyright (C) 1995 Hamish Macdonald | ||
5 | */ | ||
6 | |||
7 | /* | ||
8 | * This file handles the architecture-dependent parts of system setup | ||
9 | */ | ||
10 | |||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/mm.h> | ||
13 | #include <linux/sched.h> | ||
14 | #include <linux/delay.h> | ||
15 | #include <linux/interrupt.h> | ||
16 | #include <linux/fs.h> | ||
17 | #include <linux/console.h> | ||
18 | #include <linux/genhd.h> | ||
19 | #include <linux/errno.h> | ||
20 | #include <linux/string.h> | ||
21 | #include <linux/init.h> | ||
22 | #include <linux/bootmem.h> | ||
23 | #include <linux/proc_fs.h> | ||
24 | #include <linux/seq_file.h> | ||
25 | #include <linux/module.h> | ||
26 | #include <linux/initrd.h> | ||
27 | |||
28 | #include <asm/bootinfo.h> | ||
29 | #include <asm/sections.h> | ||
30 | #include <asm/setup.h> | ||
31 | #include <asm/fpu.h> | ||
32 | #include <asm/irq.h> | ||
33 | #include <asm/io.h> | ||
34 | #include <asm/machdep.h> | ||
35 | #ifdef CONFIG_AMIGA | ||
36 | #include <asm/amigahw.h> | ||
37 | #endif | ||
38 | #ifdef CONFIG_ATARI | ||
39 | #include <asm/atarihw.h> | ||
40 | #include <asm/atari_stram.h> | ||
41 | #endif | ||
42 | #ifdef CONFIG_SUN3X | ||
43 | #include <asm/dvma.h> | ||
44 | #endif | ||
45 | #include <asm/natfeat.h> | ||
46 | |||
47 | #if !FPSTATESIZE || !NR_IRQS | ||
48 | #warning No CPU/platform type selected, your kernel will not work! | ||
49 | #warning Are you building an allnoconfig kernel? | ||
50 | #endif | ||
51 | |||
52 | unsigned long m68k_machtype; | ||
53 | EXPORT_SYMBOL(m68k_machtype); | ||
54 | unsigned long m68k_cputype; | ||
55 | EXPORT_SYMBOL(m68k_cputype); | ||
56 | unsigned long m68k_fputype; | ||
57 | unsigned long m68k_mmutype; | ||
58 | EXPORT_SYMBOL(m68k_mmutype); | ||
59 | #ifdef CONFIG_VME | ||
60 | unsigned long vme_brdtype; | ||
61 | EXPORT_SYMBOL(vme_brdtype); | ||
62 | #endif | ||
63 | |||
64 | int m68k_is040or060; | ||
65 | EXPORT_SYMBOL(m68k_is040or060); | ||
66 | |||
67 | extern unsigned long availmem; | ||
68 | |||
69 | int m68k_num_memory; | ||
70 | EXPORT_SYMBOL(m68k_num_memory); | ||
71 | int m68k_realnum_memory; | ||
72 | EXPORT_SYMBOL(m68k_realnum_memory); | ||
73 | unsigned long m68k_memoffset; | ||
74 | struct mem_info m68k_memory[NUM_MEMINFO]; | ||
75 | EXPORT_SYMBOL(m68k_memory); | ||
76 | |||
77 | struct mem_info m68k_ramdisk; | ||
78 | |||
79 | static char m68k_command_line[CL_SIZE]; | ||
80 | |||
81 | void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL; | ||
82 | /* machine dependent irq functions */ | ||
83 | void (*mach_init_IRQ) (void) __initdata = NULL; | ||
84 | void (*mach_get_model) (char *model); | ||
85 | void (*mach_get_hardware_list) (struct seq_file *m); | ||
86 | /* machine dependent timer functions */ | ||
87 | unsigned long (*mach_gettimeoffset) (void); | ||
88 | int (*mach_hwclk) (int, struct rtc_time*); | ||
89 | EXPORT_SYMBOL(mach_hwclk); | ||
90 | int (*mach_set_clock_mmss) (unsigned long); | ||
91 | unsigned int (*mach_get_ss)(void); | ||
92 | int (*mach_get_rtc_pll)(struct rtc_pll_info *); | ||
93 | int (*mach_set_rtc_pll)(struct rtc_pll_info *); | ||
94 | EXPORT_SYMBOL(mach_get_ss); | ||
95 | EXPORT_SYMBOL(mach_get_rtc_pll); | ||
96 | EXPORT_SYMBOL(mach_set_rtc_pll); | ||
97 | void (*mach_reset)( void ); | ||
98 | void (*mach_halt)( void ); | ||
99 | void (*mach_power_off)( void ); | ||
100 | long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */ | ||
101 | #ifdef CONFIG_HEARTBEAT | ||
102 | void (*mach_heartbeat) (int); | ||
103 | EXPORT_SYMBOL(mach_heartbeat); | ||
104 | #endif | ||
105 | #ifdef CONFIG_M68K_L2_CACHE | ||
106 | void (*mach_l2_flush) (int); | ||
107 | #endif | ||
108 | #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) | ||
109 | void (*mach_beep)(unsigned int, unsigned int); | ||
110 | EXPORT_SYMBOL(mach_beep); | ||
111 | #endif | ||
112 | #if defined(CONFIG_ISA) && defined(MULTI_ISA) | ||
113 | int isa_type; | ||
114 | int isa_sex; | ||
115 | EXPORT_SYMBOL(isa_type); | ||
116 | EXPORT_SYMBOL(isa_sex); | ||
117 | #endif | ||
118 | |||
119 | extern int amiga_parse_bootinfo(const struct bi_record *); | ||
120 | extern int atari_parse_bootinfo(const struct bi_record *); | ||
121 | extern int mac_parse_bootinfo(const struct bi_record *); | ||
122 | extern int q40_parse_bootinfo(const struct bi_record *); | ||
123 | extern int bvme6000_parse_bootinfo(const struct bi_record *); | ||
124 | extern int mvme16x_parse_bootinfo(const struct bi_record *); | ||
125 | extern int mvme147_parse_bootinfo(const struct bi_record *); | ||
126 | extern int hp300_parse_bootinfo(const struct bi_record *); | ||
127 | extern int apollo_parse_bootinfo(const struct bi_record *); | ||
128 | |||
129 | extern void config_amiga(void); | ||
130 | extern void config_atari(void); | ||
131 | extern void config_mac(void); | ||
132 | extern void config_sun3(void); | ||
133 | extern void config_apollo(void); | ||
134 | extern void config_mvme147(void); | ||
135 | extern void config_mvme16x(void); | ||
136 | extern void config_bvme6000(void); | ||
137 | extern void config_hp300(void); | ||
138 | extern void config_q40(void); | ||
139 | extern void config_sun3x(void); | ||
140 | |||
141 | #define MASK_256K 0xfffc0000 | ||
142 | |||
143 | extern void paging_init(void); | ||
144 | |||
145 | static void __init m68k_parse_bootinfo(const struct bi_record *record) | ||
146 | { | ||
147 | while (record->tag != BI_LAST) { | ||
148 | int unknown = 0; | ||
149 | const unsigned long *data = record->data; | ||
150 | |||
151 | switch (record->tag) { | ||
152 | case BI_MACHTYPE: | ||
153 | case BI_CPUTYPE: | ||
154 | case BI_FPUTYPE: | ||
155 | case BI_MMUTYPE: | ||
156 | /* Already set up by head.S */ | ||
157 | break; | ||
158 | |||
159 | case BI_MEMCHUNK: | ||
160 | if (m68k_num_memory < NUM_MEMINFO) { | ||
161 | m68k_memory[m68k_num_memory].addr = data[0]; | ||
162 | m68k_memory[m68k_num_memory].size = data[1]; | ||
163 | m68k_num_memory++; | ||
164 | } else | ||
165 | printk("m68k_parse_bootinfo: too many memory chunks\n"); | ||
166 | break; | ||
167 | |||
168 | case BI_RAMDISK: | ||
169 | m68k_ramdisk.addr = data[0]; | ||
170 | m68k_ramdisk.size = data[1]; | ||
171 | break; | ||
172 | |||
173 | case BI_COMMAND_LINE: | ||
174 | strlcpy(m68k_command_line, (const char *)data, | ||
175 | sizeof(m68k_command_line)); | ||
176 | break; | ||
177 | |||
178 | default: | ||
179 | if (MACH_IS_AMIGA) | ||
180 | unknown = amiga_parse_bootinfo(record); | ||
181 | else if (MACH_IS_ATARI) | ||
182 | unknown = atari_parse_bootinfo(record); | ||
183 | else if (MACH_IS_MAC) | ||
184 | unknown = mac_parse_bootinfo(record); | ||
185 | else if (MACH_IS_Q40) | ||
186 | unknown = q40_parse_bootinfo(record); | ||
187 | else if (MACH_IS_BVME6000) | ||
188 | unknown = bvme6000_parse_bootinfo(record); | ||
189 | else if (MACH_IS_MVME16x) | ||
190 | unknown = mvme16x_parse_bootinfo(record); | ||
191 | else if (MACH_IS_MVME147) | ||
192 | unknown = mvme147_parse_bootinfo(record); | ||
193 | else if (MACH_IS_HP300) | ||
194 | unknown = hp300_parse_bootinfo(record); | ||
195 | else if (MACH_IS_APOLLO) | ||
196 | unknown = apollo_parse_bootinfo(record); | ||
197 | else | ||
198 | unknown = 1; | ||
199 | } | ||
200 | if (unknown) | ||
201 | printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", | ||
202 | record->tag); | ||
203 | record = (struct bi_record *)((unsigned long)record + | ||
204 | record->size); | ||
205 | } | ||
206 | |||
207 | m68k_realnum_memory = m68k_num_memory; | ||
208 | #ifdef CONFIG_SINGLE_MEMORY_CHUNK | ||
209 | if (m68k_num_memory > 1) { | ||
210 | printk("Ignoring last %i chunks of physical memory\n", | ||
211 | (m68k_num_memory - 1)); | ||
212 | m68k_num_memory = 1; | ||
213 | } | ||
214 | #endif | ||
215 | } | ||
216 | |||
217 | void __init setup_arch(char **cmdline_p) | ||
218 | { | ||
219 | int i; | ||
220 | |||
221 | /* The bootinfo is located right after the kernel bss */ | ||
222 | m68k_parse_bootinfo((const struct bi_record *)_end); | ||
223 | |||
224 | if (CPU_IS_040) | ||
225 | m68k_is040or060 = 4; | ||
226 | else if (CPU_IS_060) | ||
227 | m68k_is040or060 = 6; | ||
228 | |||
229 | /* FIXME: m68k_fputype is passed in by Penguin booter, which can | ||
230 | * be confused by software FPU emulation. BEWARE. | ||
231 | * We should really do our own FPU check at startup. | ||
232 | * [what do we do with buggy 68LC040s? if we have problems | ||
233 | * with them, we should add a test to check_bugs() below] */ | ||
234 | #ifndef CONFIG_M68KFPU_EMU_ONLY | ||
235 | /* clear the fpu if we have one */ | ||
236 | if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) { | ||
237 | volatile int zero = 0; | ||
238 | asm volatile ("frestore %0" : : "m" (zero)); | ||
239 | } | ||
240 | #endif | ||
241 | |||
242 | if (CPU_IS_060) { | ||
243 | u32 pcr; | ||
244 | |||
245 | asm (".chip 68060; movec %%pcr,%0; .chip 68k" | ||
246 | : "=d" (pcr)); | ||
247 | if (((pcr >> 8) & 0xff) <= 5) { | ||
248 | printk("Enabling workaround for errata I14\n"); | ||
249 | asm (".chip 68060; movec %0,%%pcr; .chip 68k" | ||
250 | : : "d" (pcr | 0x20)); | ||
251 | } | ||
252 | } | ||
253 | |||
254 | init_mm.start_code = PAGE_OFFSET; | ||
255 | init_mm.end_code = (unsigned long)_etext; | ||
256 | init_mm.end_data = (unsigned long)_edata; | ||
257 | init_mm.brk = (unsigned long)_end; | ||
258 | |||
259 | *cmdline_p = m68k_command_line; | ||
260 | memcpy(boot_command_line, *cmdline_p, CL_SIZE); | ||
261 | |||
262 | parse_early_param(); | ||
263 | |||
264 | #ifdef CONFIG_DUMMY_CONSOLE | ||
265 | conswitchp = &dummy_con; | ||
266 | #endif | ||
267 | |||
268 | switch (m68k_machtype) { | ||
269 | #ifdef CONFIG_AMIGA | ||
270 | case MACH_AMIGA: | ||
271 | config_amiga(); | ||
272 | break; | ||
273 | #endif | ||
274 | #ifdef CONFIG_ATARI | ||
275 | case MACH_ATARI: | ||
276 | config_atari(); | ||
277 | break; | ||
278 | #endif | ||
279 | #ifdef CONFIG_MAC | ||
280 | case MACH_MAC: | ||
281 | config_mac(); | ||
282 | break; | ||
283 | #endif | ||
284 | #ifdef CONFIG_SUN3 | ||
285 | case MACH_SUN3: | ||
286 | config_sun3(); | ||
287 | break; | ||
288 | #endif | ||
289 | #ifdef CONFIG_APOLLO | ||
290 | case MACH_APOLLO: | ||
291 | config_apollo(); | ||
292 | break; | ||
293 | #endif | ||
294 | #ifdef CONFIG_MVME147 | ||
295 | case MACH_MVME147: | ||
296 | config_mvme147(); | ||
297 | break; | ||
298 | #endif | ||
299 | #ifdef CONFIG_MVME16x | ||
300 | case MACH_MVME16x: | ||
301 | config_mvme16x(); | ||
302 | break; | ||
303 | #endif | ||
304 | #ifdef CONFIG_BVME6000 | ||
305 | case MACH_BVME6000: | ||
306 | config_bvme6000(); | ||
307 | break; | ||
308 | #endif | ||
309 | #ifdef CONFIG_HP300 | ||
310 | case MACH_HP300: | ||
311 | config_hp300(); | ||
312 | break; | ||
313 | #endif | ||
314 | #ifdef CONFIG_Q40 | ||
315 | case MACH_Q40: | ||
316 | config_q40(); | ||
317 | break; | ||
318 | #endif | ||
319 | #ifdef CONFIG_SUN3X | ||
320 | case MACH_SUN3X: | ||
321 | config_sun3x(); | ||
322 | break; | ||
323 | #endif | ||
324 | default: | ||
325 | panic("No configuration setup"); | ||
326 | } | ||
327 | |||
328 | #ifdef CONFIG_NATFEAT | ||
329 | nf_init(); | ||
330 | #endif | ||
331 | |||
332 | paging_init(); | ||
333 | |||
334 | #ifndef CONFIG_SUN3 | ||
335 | for (i = 1; i < m68k_num_memory; i++) | ||
336 | free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr, | ||
337 | m68k_memory[i].size); | ||
338 | #ifdef CONFIG_BLK_DEV_INITRD | ||
339 | if (m68k_ramdisk.size) { | ||
340 | reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)), | ||
341 | m68k_ramdisk.addr, m68k_ramdisk.size, | ||
342 | BOOTMEM_DEFAULT); | ||
343 | initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); | ||
344 | initrd_end = initrd_start + m68k_ramdisk.size; | ||
345 | printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end); | ||
346 | } | ||
347 | #endif | ||
348 | |||
349 | #ifdef CONFIG_ATARI | ||
350 | if (MACH_IS_ATARI) | ||
351 | atari_stram_reserve_pages((void *)availmem); | ||
352 | #endif | ||
353 | #ifdef CONFIG_SUN3X | ||
354 | if (MACH_IS_SUN3X) { | ||
355 | dvma_init(); | ||
356 | } | ||
357 | #endif | ||
358 | |||
359 | #endif /* !CONFIG_SUN3 */ | ||
360 | |||
361 | /* set ISA defs early as possible */ | ||
362 | #if defined(CONFIG_ISA) && defined(MULTI_ISA) | ||
363 | if (MACH_IS_Q40) { | ||
364 | isa_type = ISA_TYPE_Q40; | ||
365 | isa_sex = 0; | ||
366 | } | ||
367 | #ifdef CONFIG_AMIGA_PCMCIA | ||
368 | if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) { | ||
369 | isa_type = ISA_TYPE_AG; | ||
370 | isa_sex = 1; | ||
371 | } | ||
372 | #endif | ||
373 | #endif | ||
374 | } | ||
375 | |||
376 | static int show_cpuinfo(struct seq_file *m, void *v) | ||
377 | { | ||
378 | const char *cpu, *mmu, *fpu; | ||
379 | unsigned long clockfreq, clockfactor; | ||
380 | |||
381 | #define LOOP_CYCLES_68020 (8) | ||
382 | #define LOOP_CYCLES_68030 (8) | ||
383 | #define LOOP_CYCLES_68040 (3) | ||
384 | #define LOOP_CYCLES_68060 (1) | ||
385 | |||
386 | if (CPU_IS_020) { | ||
387 | cpu = "68020"; | ||
388 | clockfactor = LOOP_CYCLES_68020; | ||
389 | } else if (CPU_IS_030) { | ||
390 | cpu = "68030"; | ||
391 | clockfactor = LOOP_CYCLES_68030; | ||
392 | } else if (CPU_IS_040) { | ||
393 | cpu = "68040"; | ||
394 | clockfactor = LOOP_CYCLES_68040; | ||
395 | } else if (CPU_IS_060) { | ||
396 | cpu = "68060"; | ||
397 | clockfactor = LOOP_CYCLES_68060; | ||
398 | } else { | ||
399 | cpu = "680x0"; | ||
400 | clockfactor = 0; | ||
401 | } | ||
402 | |||
403 | #ifdef CONFIG_M68KFPU_EMU_ONLY | ||
404 | fpu = "none(soft float)"; | ||
405 | #else | ||
406 | if (m68k_fputype & FPU_68881) | ||
407 | fpu = "68881"; | ||
408 | else if (m68k_fputype & FPU_68882) | ||
409 | fpu = "68882"; | ||
410 | else if (m68k_fputype & FPU_68040) | ||
411 | fpu = "68040"; | ||
412 | else if (m68k_fputype & FPU_68060) | ||
413 | fpu = "68060"; | ||
414 | else if (m68k_fputype & FPU_SUNFPA) | ||
415 | fpu = "Sun FPA"; | ||
416 | else | ||
417 | fpu = "none"; | ||
418 | #endif | ||
419 | |||
420 | if (m68k_mmutype & MMU_68851) | ||
421 | mmu = "68851"; | ||
422 | else if (m68k_mmutype & MMU_68030) | ||
423 | mmu = "68030"; | ||
424 | else if (m68k_mmutype & MMU_68040) | ||
425 | mmu = "68040"; | ||
426 | else if (m68k_mmutype & MMU_68060) | ||
427 | mmu = "68060"; | ||
428 | else if (m68k_mmutype & MMU_SUN3) | ||
429 | mmu = "Sun-3"; | ||
430 | else if (m68k_mmutype & MMU_APOLLO) | ||
431 | mmu = "Apollo"; | ||
432 | else | ||
433 | mmu = "unknown"; | ||
434 | |||
435 | clockfreq = loops_per_jiffy * HZ * clockfactor; | ||
436 | |||
437 | seq_printf(m, "CPU:\t\t%s\n" | ||
438 | "MMU:\t\t%s\n" | ||
439 | "FPU:\t\t%s\n" | ||
440 | "Clocking:\t%lu.%1luMHz\n" | ||
441 | "BogoMips:\t%lu.%02lu\n" | ||
442 | "Calibration:\t%lu loops\n", | ||
443 | cpu, mmu, fpu, | ||
444 | clockfreq/1000000,(clockfreq/100000)%10, | ||
445 | loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100, | ||
446 | loops_per_jiffy); | ||
447 | return 0; | ||
448 | } | ||
449 | |||
450 | static void *c_start(struct seq_file *m, loff_t *pos) | ||
451 | { | ||
452 | return *pos < 1 ? (void *)1 : NULL; | ||
453 | } | ||
454 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | ||
455 | { | ||
456 | ++*pos; | ||
457 | return NULL; | ||
458 | } | ||
459 | static void c_stop(struct seq_file *m, void *v) | ||
460 | { | ||
461 | } | ||
462 | const struct seq_operations cpuinfo_op = { | ||
463 | .start = c_start, | ||
464 | .next = c_next, | ||
465 | .stop = c_stop, | ||
466 | .show = show_cpuinfo, | ||
467 | }; | ||
468 | |||
469 | #ifdef CONFIG_PROC_HARDWARE | ||
470 | static int hardware_proc_show(struct seq_file *m, void *v) | ||
471 | { | ||
472 | char model[80]; | ||
473 | unsigned long mem; | ||
474 | int i; | ||
475 | |||
476 | if (mach_get_model) | ||
477 | mach_get_model(model); | ||
478 | else | ||
479 | strcpy(model, "Unknown m68k"); | ||
480 | |||
481 | seq_printf(m, "Model:\t\t%s\n", model); | ||
482 | for (mem = 0, i = 0; i < m68k_num_memory; i++) | ||
483 | mem += m68k_memory[i].size; | ||
484 | seq_printf(m, "System Memory:\t%ldK\n", mem >> 10); | ||
485 | |||
486 | if (mach_get_hardware_list) | ||
487 | mach_get_hardware_list(m); | ||
488 | |||
489 | return 0; | ||
490 | } | ||
491 | |||
492 | static int hardware_proc_open(struct inode *inode, struct file *file) | ||
493 | { | ||
494 | return single_open(file, hardware_proc_show, NULL); | ||
495 | } | ||
496 | |||
497 | static const struct file_operations hardware_proc_fops = { | ||
498 | .open = hardware_proc_open, | ||
499 | .read = seq_read, | ||
500 | .llseek = seq_lseek, | ||
501 | .release = single_release, | ||
502 | }; | ||
503 | |||
504 | static int __init proc_hardware_init(void) | ||
505 | { | ||
506 | proc_create("hardware", 0, NULL, &hardware_proc_fops); | ||
507 | return 0; | ||
508 | } | ||
509 | module_init(proc_hardware_init); | ||
510 | #endif | ||
511 | |||
512 | void check_bugs(void) | ||
513 | { | ||
514 | #ifndef CONFIG_M68KFPU_EMU | ||
515 | if (m68k_fputype == 0) { | ||
516 | printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " | ||
517 | "WHICH IS REQUIRED BY LINUX/M68K ***\n"); | ||
518 | printk(KERN_EMERG "Upgrade your hardware or join the FPU " | ||
519 | "emulation project\n"); | ||
520 | panic("no FPU"); | ||
521 | } | ||
522 | #endif /* !CONFIG_M68KFPU_EMU */ | ||
523 | } | ||
524 | |||
525 | #ifdef CONFIG_ADB | ||
526 | static int __init adb_probe_sync_enable (char *str) { | ||
527 | extern int __adb_probe_sync; | ||
528 | __adb_probe_sync = 1; | ||
529 | return 1; | ||
530 | } | ||
531 | |||
532 | __setup("adb_sync", adb_probe_sync_enable); | ||
533 | #endif /* CONFIG_ADB */ | ||
diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68k/kernel/setup_no.c index 16b2de7f5101..16b2de7f5101 100644 --- a/arch/m68knommu/kernel/setup.c +++ b/arch/m68k/kernel/setup_no.c | |||
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c index a0afc239304e..2e25713e2ead 100644 --- a/arch/m68k/kernel/signal.c +++ b/arch/m68k/kernel/signal.c | |||
@@ -1,1017 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/signal.c | 2 | #include "signal_mm.c" |
3 | * | ||
4 | * Copyright (C) 1991, 1992 Linus Torvalds | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file COPYING in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | /* | ||
12 | * Linux/m68k support by Hamish Macdonald | ||
13 | * | ||
14 | * 68060 fixes by Jesper Skov | ||
15 | * | ||
16 | * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab | ||
17 | * | ||
18 | * mathemu support by Roman Zippel | ||
19 | * (Note: fpstate in the signal context is completely ignored for the emulator | ||
20 | * and the internal floating point format is put on stack) | ||
21 | */ | ||
22 | |||
23 | /* | ||
24 | * ++roman (07/09/96): implemented signal stacks (specially for tosemu on | ||
25 | * Atari :-) Current limitation: Only one sigstack can be active at one time. | ||
26 | * If a second signal with SA_ONSTACK set arrives while working on a sigstack, | ||
27 | * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested | ||
28 | * signal handlers! | ||
29 | */ | ||
30 | |||
31 | #include <linux/sched.h> | ||
32 | #include <linux/mm.h> | ||
33 | #include <linux/kernel.h> | ||
34 | #include <linux/signal.h> | ||
35 | #include <linux/syscalls.h> | ||
36 | #include <linux/errno.h> | ||
37 | #include <linux/wait.h> | ||
38 | #include <linux/ptrace.h> | ||
39 | #include <linux/unistd.h> | ||
40 | #include <linux/stddef.h> | ||
41 | #include <linux/highuid.h> | ||
42 | #include <linux/personality.h> | ||
43 | #include <linux/tty.h> | ||
44 | #include <linux/binfmts.h> | ||
45 | #include <linux/module.h> | ||
46 | |||
47 | #include <asm/setup.h> | ||
48 | #include <asm/uaccess.h> | ||
49 | #include <asm/pgtable.h> | ||
50 | #include <asm/traps.h> | ||
51 | #include <asm/ucontext.h> | ||
52 | |||
53 | #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) | ||
54 | |||
55 | static const int frame_extra_sizes[16] = { | ||
56 | [1] = -1, /* sizeof(((struct frame *)0)->un.fmt1), */ | ||
57 | [2] = sizeof(((struct frame *)0)->un.fmt2), | ||
58 | [3] = sizeof(((struct frame *)0)->un.fmt3), | ||
59 | [4] = sizeof(((struct frame *)0)->un.fmt4), | ||
60 | [5] = -1, /* sizeof(((struct frame *)0)->un.fmt5), */ | ||
61 | [6] = -1, /* sizeof(((struct frame *)0)->un.fmt6), */ | ||
62 | [7] = sizeof(((struct frame *)0)->un.fmt7), | ||
63 | [8] = -1, /* sizeof(((struct frame *)0)->un.fmt8), */ | ||
64 | [9] = sizeof(((struct frame *)0)->un.fmt9), | ||
65 | [10] = sizeof(((struct frame *)0)->un.fmta), | ||
66 | [11] = sizeof(((struct frame *)0)->un.fmtb), | ||
67 | [12] = -1, /* sizeof(((struct frame *)0)->un.fmtc), */ | ||
68 | [13] = -1, /* sizeof(((struct frame *)0)->un.fmtd), */ | ||
69 | [14] = -1, /* sizeof(((struct frame *)0)->un.fmte), */ | ||
70 | [15] = -1, /* sizeof(((struct frame *)0)->un.fmtf), */ | ||
71 | }; | ||
72 | |||
73 | int handle_kernel_fault(struct pt_regs *regs) | ||
74 | { | ||
75 | const struct exception_table_entry *fixup; | ||
76 | struct pt_regs *tregs; | ||
77 | |||
78 | /* Are we prepared to handle this kernel fault? */ | ||
79 | fixup = search_exception_tables(regs->pc); | ||
80 | if (!fixup) | ||
81 | return 0; | ||
82 | |||
83 | /* Create a new four word stack frame, discarding the old one. */ | ||
84 | regs->stkadj = frame_extra_sizes[regs->format]; | ||
85 | tregs = (struct pt_regs *)((long)regs + regs->stkadj); | ||
86 | tregs->vector = regs->vector; | ||
87 | tregs->format = 0; | ||
88 | tregs->pc = fixup->fixup; | ||
89 | tregs->sr = regs->sr; | ||
90 | |||
91 | return 1; | ||
92 | } | ||
93 | |||
94 | /* | ||
95 | * Atomically swap in the new signal mask, and wait for a signal. | ||
96 | */ | ||
97 | asmlinkage int | ||
98 | sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) | ||
99 | { | ||
100 | mask &= _BLOCKABLE; | ||
101 | spin_lock_irq(¤t->sighand->siglock); | ||
102 | current->saved_sigmask = current->blocked; | ||
103 | siginitset(¤t->blocked, mask); | ||
104 | recalc_sigpending(); | ||
105 | spin_unlock_irq(¤t->sighand->siglock); | ||
106 | |||
107 | current->state = TASK_INTERRUPTIBLE; | ||
108 | schedule(); | ||
109 | set_restore_sigmask(); | ||
110 | |||
111 | return -ERESTARTNOHAND; | ||
112 | } | ||
113 | |||
114 | asmlinkage int | ||
115 | sys_sigaction(int sig, const struct old_sigaction __user *act, | ||
116 | struct old_sigaction __user *oact) | ||
117 | { | ||
118 | struct k_sigaction new_ka, old_ka; | ||
119 | int ret; | ||
120 | |||
121 | if (act) { | ||
122 | old_sigset_t mask; | ||
123 | if (!access_ok(VERIFY_READ, act, sizeof(*act)) || | ||
124 | __get_user(new_ka.sa.sa_handler, &act->sa_handler) || | ||
125 | __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || | ||
126 | __get_user(new_ka.sa.sa_flags, &act->sa_flags) || | ||
127 | __get_user(mask, &act->sa_mask)) | ||
128 | return -EFAULT; | ||
129 | siginitset(&new_ka.sa.sa_mask, mask); | ||
130 | } | ||
131 | |||
132 | ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); | ||
133 | |||
134 | if (!ret && oact) { | ||
135 | if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || | ||
136 | __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || | ||
137 | __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || | ||
138 | __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || | ||
139 | __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) | ||
140 | return -EFAULT; | ||
141 | } | ||
142 | |||
143 | return ret; | ||
144 | } | ||
145 | |||
146 | asmlinkage int | ||
147 | sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) | ||
148 | { | ||
149 | return do_sigaltstack(uss, uoss, rdusp()); | ||
150 | } | ||
151 | |||
152 | |||
153 | /* | ||
154 | * Do a signal return; undo the signal stack. | ||
155 | * | ||
156 | * Keep the return code on the stack quadword aligned! | ||
157 | * That makes the cache flush below easier. | ||
158 | */ | ||
159 | |||
160 | struct sigframe | ||
161 | { | ||
162 | char __user *pretcode; | ||
163 | int sig; | ||
164 | int code; | ||
165 | struct sigcontext __user *psc; | ||
166 | char retcode[8]; | ||
167 | unsigned long extramask[_NSIG_WORDS-1]; | ||
168 | struct sigcontext sc; | ||
169 | }; | ||
170 | |||
171 | struct rt_sigframe | ||
172 | { | ||
173 | char __user *pretcode; | ||
174 | int sig; | ||
175 | struct siginfo __user *pinfo; | ||
176 | void __user *puc; | ||
177 | char retcode[8]; | ||
178 | struct siginfo info; | ||
179 | struct ucontext uc; | ||
180 | }; | ||
181 | |||
182 | |||
183 | static unsigned char fpu_version; /* version number of fpu, set by setup_frame */ | ||
184 | |||
185 | static inline int restore_fpu_state(struct sigcontext *sc) | ||
186 | { | ||
187 | int err = 1; | ||
188 | |||
189 | if (FPU_IS_EMU) { | ||
190 | /* restore registers */ | ||
191 | memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); | ||
192 | memcpy(current->thread.fp, sc->sc_fpregs, 24); | ||
193 | return 0; | ||
194 | } | ||
195 | |||
196 | if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { | ||
197 | /* Verify the frame format. */ | ||
198 | if (!CPU_IS_060 && (sc->sc_fpstate[0] != fpu_version)) | ||
199 | goto out; | ||
200 | if (CPU_IS_020_OR_030) { | ||
201 | if (m68k_fputype & FPU_68881 && | ||
202 | !(sc->sc_fpstate[1] == 0x18 || sc->sc_fpstate[1] == 0xb4)) | ||
203 | goto out; | ||
204 | if (m68k_fputype & FPU_68882 && | ||
205 | !(sc->sc_fpstate[1] == 0x38 || sc->sc_fpstate[1] == 0xd4)) | ||
206 | goto out; | ||
207 | } else if (CPU_IS_040) { | ||
208 | if (!(sc->sc_fpstate[1] == 0x00 || | ||
209 | sc->sc_fpstate[1] == 0x28 || | ||
210 | sc->sc_fpstate[1] == 0x60)) | ||
211 | goto out; | ||
212 | } else if (CPU_IS_060) { | ||
213 | if (!(sc->sc_fpstate[3] == 0x00 || | ||
214 | sc->sc_fpstate[3] == 0x60 || | ||
215 | sc->sc_fpstate[3] == 0xe0)) | ||
216 | goto out; | ||
217 | } else | ||
218 | goto out; | ||
219 | |||
220 | __asm__ volatile (".chip 68k/68881\n\t" | ||
221 | "fmovemx %0,%%fp0-%%fp1\n\t" | ||
222 | "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" | ||
223 | ".chip 68k" | ||
224 | : /* no outputs */ | ||
225 | : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); | ||
226 | } | ||
227 | __asm__ volatile (".chip 68k/68881\n\t" | ||
228 | "frestore %0\n\t" | ||
229 | ".chip 68k" : : "m" (*sc->sc_fpstate)); | ||
230 | err = 0; | ||
231 | |||
232 | out: | ||
233 | return err; | ||
234 | } | ||
235 | |||
236 | #define FPCONTEXT_SIZE 216 | ||
237 | #define uc_fpstate uc_filler[0] | ||
238 | #define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] | ||
239 | #define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] | ||
240 | |||
241 | static inline int rt_restore_fpu_state(struct ucontext __user *uc) | ||
242 | { | ||
243 | unsigned char fpstate[FPCONTEXT_SIZE]; | ||
244 | int context_size = CPU_IS_060 ? 8 : 0; | ||
245 | fpregset_t fpregs; | ||
246 | int err = 1; | ||
247 | |||
248 | if (FPU_IS_EMU) { | ||
249 | /* restore fpu control register */ | ||
250 | if (__copy_from_user(current->thread.fpcntl, | ||
251 | uc->uc_mcontext.fpregs.f_fpcntl, 12)) | ||
252 | goto out; | ||
253 | /* restore all other fpu register */ | ||
254 | if (__copy_from_user(current->thread.fp, | ||
255 | uc->uc_mcontext.fpregs.f_fpregs, 96)) | ||
256 | goto out; | ||
257 | return 0; | ||
258 | } | ||
259 | |||
260 | if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) | ||
261 | goto out; | ||
262 | if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { | ||
263 | if (!CPU_IS_060) | ||
264 | context_size = fpstate[1]; | ||
265 | /* Verify the frame format. */ | ||
266 | if (!CPU_IS_060 && (fpstate[0] != fpu_version)) | ||
267 | goto out; | ||
268 | if (CPU_IS_020_OR_030) { | ||
269 | if (m68k_fputype & FPU_68881 && | ||
270 | !(context_size == 0x18 || context_size == 0xb4)) | ||
271 | goto out; | ||
272 | if (m68k_fputype & FPU_68882 && | ||
273 | !(context_size == 0x38 || context_size == 0xd4)) | ||
274 | goto out; | ||
275 | } else if (CPU_IS_040) { | ||
276 | if (!(context_size == 0x00 || | ||
277 | context_size == 0x28 || | ||
278 | context_size == 0x60)) | ||
279 | goto out; | ||
280 | } else if (CPU_IS_060) { | ||
281 | if (!(fpstate[3] == 0x00 || | ||
282 | fpstate[3] == 0x60 || | ||
283 | fpstate[3] == 0xe0)) | ||
284 | goto out; | ||
285 | } else | ||
286 | goto out; | ||
287 | if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, | ||
288 | sizeof(fpregs))) | ||
289 | goto out; | ||
290 | __asm__ volatile (".chip 68k/68881\n\t" | ||
291 | "fmovemx %0,%%fp0-%%fp7\n\t" | ||
292 | "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" | ||
293 | ".chip 68k" | ||
294 | : /* no outputs */ | ||
295 | : "m" (*fpregs.f_fpregs), | ||
296 | "m" (*fpregs.f_fpcntl)); | ||
297 | } | ||
298 | if (context_size && | ||
299 | __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, | ||
300 | context_size)) | ||
301 | goto out; | ||
302 | __asm__ volatile (".chip 68k/68881\n\t" | ||
303 | "frestore %0\n\t" | ||
304 | ".chip 68k" : : "m" (*fpstate)); | ||
305 | err = 0; | ||
306 | |||
307 | out: | ||
308 | return err; | ||
309 | } | ||
310 | |||
311 | static int mangle_kernel_stack(struct pt_regs *regs, int formatvec, | ||
312 | void __user *fp) | ||
313 | { | ||
314 | int fsize = frame_extra_sizes[formatvec >> 12]; | ||
315 | if (fsize < 0) { | ||
316 | /* | ||
317 | * user process trying to return with weird frame format | ||
318 | */ | ||
319 | #ifdef DEBUG | ||
320 | printk("user process returning with weird frame format\n"); | ||
321 | #endif | ||
322 | return 1; | ||
323 | } | ||
324 | if (!fsize) { | ||
325 | regs->format = formatvec >> 12; | ||
326 | regs->vector = formatvec & 0xfff; | ||
327 | } else { | ||
328 | struct switch_stack *sw = (struct switch_stack *)regs - 1; | ||
329 | unsigned long buf[fsize / 2]; /* yes, twice as much */ | ||
330 | |||
331 | /* that'll make sure that expansion won't crap over data */ | ||
332 | if (copy_from_user(buf + fsize / 4, fp, fsize)) | ||
333 | return 1; | ||
334 | |||
335 | /* point of no return */ | ||
336 | regs->format = formatvec >> 12; | ||
337 | regs->vector = formatvec & 0xfff; | ||
338 | #define frame_offset (sizeof(struct pt_regs)+sizeof(struct switch_stack)) | ||
339 | __asm__ __volatile__ | ||
340 | (" movel %0,%/a0\n\t" | ||
341 | " subl %1,%/a0\n\t" /* make room on stack */ | ||
342 | " movel %/a0,%/sp\n\t" /* set stack pointer */ | ||
343 | /* move switch_stack and pt_regs */ | ||
344 | "1: movel %0@+,%/a0@+\n\t" | ||
345 | " dbra %2,1b\n\t" | ||
346 | " lea %/sp@(%c3),%/a0\n\t" /* add offset of fmt */ | ||
347 | " lsrl #2,%1\n\t" | ||
348 | " subql #1,%1\n\t" | ||
349 | /* copy to the gap we'd made */ | ||
350 | "2: movel %4@+,%/a0@+\n\t" | ||
351 | " dbra %1,2b\n\t" | ||
352 | " bral ret_from_signal\n" | ||
353 | : /* no outputs, it doesn't ever return */ | ||
354 | : "a" (sw), "d" (fsize), "d" (frame_offset/4-1), | ||
355 | "n" (frame_offset), "a" (buf + fsize/4) | ||
356 | : "a0"); | ||
357 | #undef frame_offset | ||
358 | } | ||
359 | return 0; | ||
360 | } | ||
361 | |||
362 | static inline int | ||
363 | restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp) | ||
364 | { | ||
365 | int formatvec; | ||
366 | struct sigcontext context; | ||
367 | int err; | ||
368 | |||
369 | /* Always make any pending restarted system calls return -EINTR */ | ||
370 | current_thread_info()->restart_block.fn = do_no_restart_syscall; | ||
371 | |||
372 | /* get previous context */ | ||
373 | if (copy_from_user(&context, usc, sizeof(context))) | ||
374 | goto badframe; | ||
375 | |||
376 | /* restore passed registers */ | ||
377 | regs->d0 = context.sc_d0; | ||
378 | regs->d1 = context.sc_d1; | ||
379 | regs->a0 = context.sc_a0; | ||
380 | regs->a1 = context.sc_a1; | ||
381 | regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); | ||
382 | regs->pc = context.sc_pc; | ||
383 | regs->orig_d0 = -1; /* disable syscall checks */ | ||
384 | wrusp(context.sc_usp); | ||
385 | formatvec = context.sc_formatvec; | ||
386 | |||
387 | err = restore_fpu_state(&context); | ||
388 | |||
389 | if (err || mangle_kernel_stack(regs, formatvec, fp)) | ||
390 | goto badframe; | ||
391 | |||
392 | return 0; | ||
393 | |||
394 | badframe: | ||
395 | return 1; | ||
396 | } | ||
397 | |||
398 | static inline int | ||
399 | rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, | ||
400 | struct ucontext __user *uc) | ||
401 | { | ||
402 | int temp; | ||
403 | greg_t __user *gregs = uc->uc_mcontext.gregs; | ||
404 | unsigned long usp; | ||
405 | int err; | ||
406 | |||
407 | /* Always make any pending restarted system calls return -EINTR */ | ||
408 | current_thread_info()->restart_block.fn = do_no_restart_syscall; | ||
409 | |||
410 | err = __get_user(temp, &uc->uc_mcontext.version); | ||
411 | if (temp != MCONTEXT_VERSION) | ||
412 | goto badframe; | ||
413 | /* restore passed registers */ | ||
414 | err |= __get_user(regs->d0, &gregs[0]); | ||
415 | err |= __get_user(regs->d1, &gregs[1]); | ||
416 | err |= __get_user(regs->d2, &gregs[2]); | ||
417 | err |= __get_user(regs->d3, &gregs[3]); | ||
418 | err |= __get_user(regs->d4, &gregs[4]); | ||
419 | err |= __get_user(regs->d5, &gregs[5]); | ||
420 | err |= __get_user(sw->d6, &gregs[6]); | ||
421 | err |= __get_user(sw->d7, &gregs[7]); | ||
422 | err |= __get_user(regs->a0, &gregs[8]); | ||
423 | err |= __get_user(regs->a1, &gregs[9]); | ||
424 | err |= __get_user(regs->a2, &gregs[10]); | ||
425 | err |= __get_user(sw->a3, &gregs[11]); | ||
426 | err |= __get_user(sw->a4, &gregs[12]); | ||
427 | err |= __get_user(sw->a5, &gregs[13]); | ||
428 | err |= __get_user(sw->a6, &gregs[14]); | ||
429 | err |= __get_user(usp, &gregs[15]); | ||
430 | wrusp(usp); | ||
431 | err |= __get_user(regs->pc, &gregs[16]); | ||
432 | err |= __get_user(temp, &gregs[17]); | ||
433 | regs->sr = (regs->sr & 0xff00) | (temp & 0xff); | ||
434 | regs->orig_d0 = -1; /* disable syscall checks */ | ||
435 | err |= __get_user(temp, &uc->uc_formatvec); | ||
436 | |||
437 | err |= rt_restore_fpu_state(uc); | ||
438 | |||
439 | if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) | ||
440 | goto badframe; | ||
441 | |||
442 | if (mangle_kernel_stack(regs, temp, &uc->uc_extra)) | ||
443 | goto badframe; | ||
444 | |||
445 | return 0; | ||
446 | |||
447 | badframe: | ||
448 | return 1; | ||
449 | } | ||
450 | |||
451 | asmlinkage int do_sigreturn(unsigned long __unused) | ||
452 | { | ||
453 | struct switch_stack *sw = (struct switch_stack *) &__unused; | ||
454 | struct pt_regs *regs = (struct pt_regs *) (sw + 1); | ||
455 | unsigned long usp = rdusp(); | ||
456 | struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); | ||
457 | sigset_t set; | ||
458 | |||
459 | if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) | ||
460 | goto badframe; | ||
461 | if (__get_user(set.sig[0], &frame->sc.sc_mask) || | ||
462 | (_NSIG_WORDS > 1 && | ||
463 | __copy_from_user(&set.sig[1], &frame->extramask, | ||
464 | sizeof(frame->extramask)))) | ||
465 | goto badframe; | ||
466 | |||
467 | sigdelsetmask(&set, ~_BLOCKABLE); | ||
468 | current->blocked = set; | ||
469 | recalc_sigpending(); | ||
470 | |||
471 | if (restore_sigcontext(regs, &frame->sc, frame + 1)) | ||
472 | goto badframe; | ||
473 | return regs->d0; | ||
474 | |||
475 | badframe: | ||
476 | force_sig(SIGSEGV, current); | ||
477 | return 0; | ||
478 | } | ||
479 | |||
480 | asmlinkage int do_rt_sigreturn(unsigned long __unused) | ||
481 | { | ||
482 | struct switch_stack *sw = (struct switch_stack *) &__unused; | ||
483 | struct pt_regs *regs = (struct pt_regs *) (sw + 1); | ||
484 | unsigned long usp = rdusp(); | ||
485 | struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); | ||
486 | sigset_t set; | ||
487 | |||
488 | if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) | ||
489 | goto badframe; | ||
490 | if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) | ||
491 | goto badframe; | ||
492 | |||
493 | sigdelsetmask(&set, ~_BLOCKABLE); | ||
494 | current->blocked = set; | ||
495 | recalc_sigpending(); | ||
496 | |||
497 | if (rt_restore_ucontext(regs, sw, &frame->uc)) | ||
498 | goto badframe; | ||
499 | return regs->d0; | ||
500 | |||
501 | badframe: | ||
502 | force_sig(SIGSEGV, current); | ||
503 | return 0; | ||
504 | } | ||
505 | |||
506 | /* | ||
507 | * Set up a signal frame. | ||
508 | */ | ||
509 | |||
510 | static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) | ||
511 | { | ||
512 | if (FPU_IS_EMU) { | ||
513 | /* save registers */ | ||
514 | memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); | ||
515 | memcpy(sc->sc_fpregs, current->thread.fp, 24); | ||
516 | return; | ||
517 | } | ||
518 | |||
519 | __asm__ volatile (".chip 68k/68881\n\t" | ||
520 | "fsave %0\n\t" | ||
521 | ".chip 68k" | ||
522 | : : "m" (*sc->sc_fpstate) : "memory"); | ||
523 | |||
524 | if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { | ||
525 | fpu_version = sc->sc_fpstate[0]; | ||
526 | if (CPU_IS_020_OR_030 && | ||
527 | regs->vector >= (VEC_FPBRUC * 4) && | ||
528 | regs->vector <= (VEC_FPNAN * 4)) { | ||
529 | /* Clear pending exception in 68882 idle frame */ | ||
530 | if (*(unsigned short *) sc->sc_fpstate == 0x1f38) | ||
531 | sc->sc_fpstate[0x38] |= 1 << 3; | ||
532 | } | ||
533 | __asm__ volatile (".chip 68k/68881\n\t" | ||
534 | "fmovemx %%fp0-%%fp1,%0\n\t" | ||
535 | "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" | ||
536 | ".chip 68k" | ||
537 | : "=m" (*sc->sc_fpregs), | ||
538 | "=m" (*sc->sc_fpcntl) | ||
539 | : /* no inputs */ | ||
540 | : "memory"); | ||
541 | } | ||
542 | } | ||
543 | |||
544 | static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) | ||
545 | { | ||
546 | unsigned char fpstate[FPCONTEXT_SIZE]; | ||
547 | int context_size = CPU_IS_060 ? 8 : 0; | ||
548 | int err = 0; | ||
549 | |||
550 | if (FPU_IS_EMU) { | ||
551 | /* save fpu control register */ | ||
552 | err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpcntl, | ||
553 | current->thread.fpcntl, 12); | ||
554 | /* save all other fpu register */ | ||
555 | err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, | ||
556 | current->thread.fp, 96); | ||
557 | return err; | ||
558 | } | ||
559 | |||
560 | __asm__ volatile (".chip 68k/68881\n\t" | ||
561 | "fsave %0\n\t" | ||
562 | ".chip 68k" | ||
563 | : : "m" (*fpstate) : "memory"); | ||
564 | |||
565 | err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); | ||
566 | if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { | ||
567 | fpregset_t fpregs; | ||
568 | if (!CPU_IS_060) | ||
569 | context_size = fpstate[1]; | ||
570 | fpu_version = fpstate[0]; | ||
571 | if (CPU_IS_020_OR_030 && | ||
572 | regs->vector >= (VEC_FPBRUC * 4) && | ||
573 | regs->vector <= (VEC_FPNAN * 4)) { | ||
574 | /* Clear pending exception in 68882 idle frame */ | ||
575 | if (*(unsigned short *) fpstate == 0x1f38) | ||
576 | fpstate[0x38] |= 1 << 3; | ||
577 | } | ||
578 | __asm__ volatile (".chip 68k/68881\n\t" | ||
579 | "fmovemx %%fp0-%%fp7,%0\n\t" | ||
580 | "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" | ||
581 | ".chip 68k" | ||
582 | : "=m" (*fpregs.f_fpregs), | ||
583 | "=m" (*fpregs.f_fpcntl) | ||
584 | : /* no inputs */ | ||
585 | : "memory"); | ||
586 | err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, | ||
587 | sizeof(fpregs)); | ||
588 | } | ||
589 | if (context_size) | ||
590 | err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, | ||
591 | context_size); | ||
592 | return err; | ||
593 | } | ||
594 | |||
595 | static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, | ||
596 | unsigned long mask) | ||
597 | { | ||
598 | sc->sc_mask = mask; | ||
599 | sc->sc_usp = rdusp(); | ||
600 | sc->sc_d0 = regs->d0; | ||
601 | sc->sc_d1 = regs->d1; | ||
602 | sc->sc_a0 = regs->a0; | ||
603 | sc->sc_a1 = regs->a1; | ||
604 | sc->sc_sr = regs->sr; | ||
605 | sc->sc_pc = regs->pc; | ||
606 | sc->sc_formatvec = regs->format << 12 | regs->vector; | ||
607 | save_fpu_state(sc, regs); | ||
608 | } | ||
609 | |||
610 | static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) | ||
611 | { | ||
612 | struct switch_stack *sw = (struct switch_stack *)regs - 1; | ||
613 | greg_t __user *gregs = uc->uc_mcontext.gregs; | ||
614 | int err = 0; | ||
615 | |||
616 | err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); | ||
617 | err |= __put_user(regs->d0, &gregs[0]); | ||
618 | err |= __put_user(regs->d1, &gregs[1]); | ||
619 | err |= __put_user(regs->d2, &gregs[2]); | ||
620 | err |= __put_user(regs->d3, &gregs[3]); | ||
621 | err |= __put_user(regs->d4, &gregs[4]); | ||
622 | err |= __put_user(regs->d5, &gregs[5]); | ||
623 | err |= __put_user(sw->d6, &gregs[6]); | ||
624 | err |= __put_user(sw->d7, &gregs[7]); | ||
625 | err |= __put_user(regs->a0, &gregs[8]); | ||
626 | err |= __put_user(regs->a1, &gregs[9]); | ||
627 | err |= __put_user(regs->a2, &gregs[10]); | ||
628 | err |= __put_user(sw->a3, &gregs[11]); | ||
629 | err |= __put_user(sw->a4, &gregs[12]); | ||
630 | err |= __put_user(sw->a5, &gregs[13]); | ||
631 | err |= __put_user(sw->a6, &gregs[14]); | ||
632 | err |= __put_user(rdusp(), &gregs[15]); | ||
633 | err |= __put_user(regs->pc, &gregs[16]); | ||
634 | err |= __put_user(regs->sr, &gregs[17]); | ||
635 | err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec); | ||
636 | err |= rt_save_fpu_state(uc, regs); | ||
637 | return err; | ||
638 | } | ||
639 | |||
640 | static inline void push_cache (unsigned long vaddr) | ||
641 | { | ||
642 | /* | ||
643 | * Using the old cache_push_v() was really a big waste. | ||
644 | * | ||
645 | * What we are trying to do is to flush 8 bytes to ram. | ||
646 | * Flushing 2 cache lines of 16 bytes is much cheaper than | ||
647 | * flushing 1 or 2 pages, as previously done in | ||
648 | * cache_push_v(). | ||
649 | * Jes | ||
650 | */ | ||
651 | if (CPU_IS_040) { | ||
652 | unsigned long temp; | ||
653 | |||
654 | __asm__ __volatile__ (".chip 68040\n\t" | ||
655 | "nop\n\t" | ||
656 | "ptestr (%1)\n\t" | ||
657 | "movec %%mmusr,%0\n\t" | ||
658 | ".chip 68k" | ||
659 | : "=r" (temp) | ||
660 | : "a" (vaddr)); | ||
661 | |||
662 | temp &= PAGE_MASK; | ||
663 | temp |= vaddr & ~PAGE_MASK; | ||
664 | |||
665 | __asm__ __volatile__ (".chip 68040\n\t" | ||
666 | "nop\n\t" | ||
667 | "cpushl %%bc,(%0)\n\t" | ||
668 | ".chip 68k" | ||
669 | : : "a" (temp)); | ||
670 | } | ||
671 | else if (CPU_IS_060) { | ||
672 | unsigned long temp; | ||
673 | __asm__ __volatile__ (".chip 68060\n\t" | ||
674 | "plpar (%0)\n\t" | ||
675 | ".chip 68k" | ||
676 | : "=a" (temp) | ||
677 | : "0" (vaddr)); | ||
678 | __asm__ __volatile__ (".chip 68060\n\t" | ||
679 | "cpushl %%bc,(%0)\n\t" | ||
680 | ".chip 68k" | ||
681 | : : "a" (temp)); | ||
682 | } | ||
683 | else { | ||
684 | /* | ||
685 | * 68030/68020 have no writeback cache; | ||
686 | * still need to clear icache. | ||
687 | * Note that vaddr is guaranteed to be long word aligned. | ||
688 | */ | ||
689 | unsigned long temp; | ||
690 | asm volatile ("movec %%cacr,%0" : "=r" (temp)); | ||
691 | temp += 4; | ||
692 | asm volatile ("movec %0,%%caar\n\t" | ||
693 | "movec %1,%%cacr" | ||
694 | : : "r" (vaddr), "r" (temp)); | ||
695 | asm volatile ("movec %0,%%caar\n\t" | ||
696 | "movec %1,%%cacr" | ||
697 | : : "r" (vaddr + 4), "r" (temp)); | ||
698 | } | ||
699 | } | ||
700 | |||
701 | static inline void __user * | ||
702 | get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) | ||
703 | { | ||
704 | unsigned long usp; | ||
705 | |||
706 | /* Default to using normal stack. */ | ||
707 | usp = rdusp(); | ||
708 | |||
709 | /* This is the X/Open sanctioned signal stack switching. */ | ||
710 | if (ka->sa.sa_flags & SA_ONSTACK) { | ||
711 | if (!sas_ss_flags(usp)) | ||
712 | usp = current->sas_ss_sp + current->sas_ss_size; | ||
713 | } | ||
714 | return (void __user *)((usp - frame_size) & -8UL); | ||
715 | } | ||
716 | |||
717 | static int setup_frame (int sig, struct k_sigaction *ka, | ||
718 | sigset_t *set, struct pt_regs *regs) | ||
719 | { | ||
720 | struct sigframe __user *frame; | ||
721 | int fsize = frame_extra_sizes[regs->format]; | ||
722 | struct sigcontext context; | ||
723 | int err = 0; | ||
724 | |||
725 | if (fsize < 0) { | ||
726 | #ifdef DEBUG | ||
727 | printk ("setup_frame: Unknown frame format %#x\n", | ||
728 | regs->format); | ||
729 | #endif | ||
730 | goto give_sigsegv; | ||
731 | } | ||
732 | |||
733 | frame = get_sigframe(ka, regs, sizeof(*frame) + fsize); | ||
734 | |||
735 | if (fsize) | ||
736 | err |= copy_to_user (frame + 1, regs + 1, fsize); | ||
737 | |||
738 | err |= __put_user((current_thread_info()->exec_domain | ||
739 | && current_thread_info()->exec_domain->signal_invmap | ||
740 | && sig < 32 | ||
741 | ? current_thread_info()->exec_domain->signal_invmap[sig] | ||
742 | : sig), | ||
743 | &frame->sig); | ||
744 | |||
745 | err |= __put_user(regs->vector, &frame->code); | ||
746 | err |= __put_user(&frame->sc, &frame->psc); | ||
747 | |||
748 | if (_NSIG_WORDS > 1) | ||
749 | err |= copy_to_user(frame->extramask, &set->sig[1], | ||
750 | sizeof(frame->extramask)); | ||
751 | |||
752 | setup_sigcontext(&context, regs, set->sig[0]); | ||
753 | err |= copy_to_user (&frame->sc, &context, sizeof(context)); | ||
754 | |||
755 | /* Set up to return from userspace. */ | ||
756 | err |= __put_user(frame->retcode, &frame->pretcode); | ||
757 | /* moveq #,d0; trap #0 */ | ||
758 | err |= __put_user(0x70004e40 + (__NR_sigreturn << 16), | ||
759 | (long __user *)(frame->retcode)); | ||
760 | |||
761 | if (err) | ||
762 | goto give_sigsegv; | ||
763 | |||
764 | push_cache ((unsigned long) &frame->retcode); | ||
765 | |||
766 | /* | ||
767 | * Set up registers for signal handler. All the state we are about | ||
768 | * to destroy is successfully copied to sigframe. | ||
769 | */ | ||
770 | wrusp ((unsigned long) frame); | ||
771 | regs->pc = (unsigned long) ka->sa.sa_handler; | ||
772 | |||
773 | /* | ||
774 | * This is subtle; if we build more than one sigframe, all but the | ||
775 | * first one will see frame format 0 and have fsize == 0, so we won't | ||
776 | * screw stkadj. | ||
777 | */ | ||
778 | if (fsize) | ||
779 | regs->stkadj = fsize; | ||
780 | |||
781 | /* Prepare to skip over the extra stuff in the exception frame. */ | ||
782 | if (regs->stkadj) { | ||
783 | struct pt_regs *tregs = | ||
784 | (struct pt_regs *)((ulong)regs + regs->stkadj); | ||
785 | #ifdef DEBUG | ||
786 | printk("Performing stackadjust=%04x\n", regs->stkadj); | ||
787 | #endif | ||
788 | /* This must be copied with decreasing addresses to | ||
789 | handle overlaps. */ | ||
790 | tregs->vector = 0; | ||
791 | tregs->format = 0; | ||
792 | tregs->pc = regs->pc; | ||
793 | tregs->sr = regs->sr; | ||
794 | } | ||
795 | return 0; | ||
796 | |||
797 | give_sigsegv: | ||
798 | force_sigsegv(sig, current); | ||
799 | return err; | ||
800 | } | ||
801 | |||
802 | static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, | ||
803 | sigset_t *set, struct pt_regs *regs) | ||
804 | { | ||
805 | struct rt_sigframe __user *frame; | ||
806 | int fsize = frame_extra_sizes[regs->format]; | ||
807 | int err = 0; | ||
808 | |||
809 | if (fsize < 0) { | ||
810 | #ifdef DEBUG | ||
811 | printk ("setup_frame: Unknown frame format %#x\n", | ||
812 | regs->format); | ||
813 | #endif | ||
814 | goto give_sigsegv; | ||
815 | } | ||
816 | |||
817 | frame = get_sigframe(ka, regs, sizeof(*frame)); | ||
818 | |||
819 | if (fsize) | ||
820 | err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize); | ||
821 | |||
822 | err |= __put_user((current_thread_info()->exec_domain | ||
823 | && current_thread_info()->exec_domain->signal_invmap | ||
824 | && sig < 32 | ||
825 | ? current_thread_info()->exec_domain->signal_invmap[sig] | ||
826 | : sig), | ||
827 | &frame->sig); | ||
828 | err |= __put_user(&frame->info, &frame->pinfo); | ||
829 | err |= __put_user(&frame->uc, &frame->puc); | ||
830 | err |= copy_siginfo_to_user(&frame->info, info); | ||
831 | |||
832 | /* Create the ucontext. */ | ||
833 | err |= __put_user(0, &frame->uc.uc_flags); | ||
834 | err |= __put_user(NULL, &frame->uc.uc_link); | ||
835 | err |= __put_user((void __user *)current->sas_ss_sp, | ||
836 | &frame->uc.uc_stack.ss_sp); | ||
837 | err |= __put_user(sas_ss_flags(rdusp()), | ||
838 | &frame->uc.uc_stack.ss_flags); | ||
839 | err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); | ||
840 | err |= rt_setup_ucontext(&frame->uc, regs); | ||
841 | err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); | ||
842 | |||
843 | /* Set up to return from userspace. */ | ||
844 | err |= __put_user(frame->retcode, &frame->pretcode); | ||
845 | #ifdef __mcoldfire__ | ||
846 | /* movel #__NR_rt_sigreturn,d0; trap #0 */ | ||
847 | err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0)); | ||
848 | err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16), | ||
849 | (long __user *)(frame->retcode + 4)); | ||
850 | #else | 3 | #else |
851 | /* moveq #,d0; notb d0; trap #0 */ | 4 | #include "signal_no.c" |
852 | err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16), | ||
853 | (long __user *)(frame->retcode + 0)); | ||
854 | err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4)); | ||
855 | #endif | ||
856 | |||
857 | if (err) | ||
858 | goto give_sigsegv; | ||
859 | |||
860 | push_cache ((unsigned long) &frame->retcode); | ||
861 | |||
862 | /* | ||
863 | * Set up registers for signal handler. All the state we are about | ||
864 | * to destroy is successfully copied to sigframe. | ||
865 | */ | ||
866 | wrusp ((unsigned long) frame); | ||
867 | regs->pc = (unsigned long) ka->sa.sa_handler; | ||
868 | |||
869 | /* | ||
870 | * This is subtle; if we build more than one sigframe, all but the | ||
871 | * first one will see frame format 0 and have fsize == 0, so we won't | ||
872 | * screw stkadj. | ||
873 | */ | ||
874 | if (fsize) | ||
875 | regs->stkadj = fsize; | ||
876 | |||
877 | /* Prepare to skip over the extra stuff in the exception frame. */ | ||
878 | if (regs->stkadj) { | ||
879 | struct pt_regs *tregs = | ||
880 | (struct pt_regs *)((ulong)regs + regs->stkadj); | ||
881 | #ifdef DEBUG | ||
882 | printk("Performing stackadjust=%04x\n", regs->stkadj); | ||
883 | #endif | 5 | #endif |
884 | /* This must be copied with decreasing addresses to | ||
885 | handle overlaps. */ | ||
886 | tregs->vector = 0; | ||
887 | tregs->format = 0; | ||
888 | tregs->pc = regs->pc; | ||
889 | tregs->sr = regs->sr; | ||
890 | } | ||
891 | return 0; | ||
892 | |||
893 | give_sigsegv: | ||
894 | force_sigsegv(sig, current); | ||
895 | return err; | ||
896 | } | ||
897 | |||
898 | static inline void | ||
899 | handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) | ||
900 | { | ||
901 | switch (regs->d0) { | ||
902 | case -ERESTARTNOHAND: | ||
903 | if (!has_handler) | ||
904 | goto do_restart; | ||
905 | regs->d0 = -EINTR; | ||
906 | break; | ||
907 | |||
908 | case -ERESTART_RESTARTBLOCK: | ||
909 | if (!has_handler) { | ||
910 | regs->d0 = __NR_restart_syscall; | ||
911 | regs->pc -= 2; | ||
912 | break; | ||
913 | } | ||
914 | regs->d0 = -EINTR; | ||
915 | break; | ||
916 | |||
917 | case -ERESTARTSYS: | ||
918 | if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { | ||
919 | regs->d0 = -EINTR; | ||
920 | break; | ||
921 | } | ||
922 | /* fallthrough */ | ||
923 | case -ERESTARTNOINTR: | ||
924 | do_restart: | ||
925 | regs->d0 = regs->orig_d0; | ||
926 | regs->pc -= 2; | ||
927 | break; | ||
928 | } | ||
929 | } | ||
930 | |||
931 | void ptrace_signal_deliver(struct pt_regs *regs, void *cookie) | ||
932 | { | ||
933 | if (regs->orig_d0 < 0) | ||
934 | return; | ||
935 | switch (regs->d0) { | ||
936 | case -ERESTARTNOHAND: | ||
937 | case -ERESTARTSYS: | ||
938 | case -ERESTARTNOINTR: | ||
939 | regs->d0 = regs->orig_d0; | ||
940 | regs->orig_d0 = -1; | ||
941 | regs->pc -= 2; | ||
942 | break; | ||
943 | } | ||
944 | } | ||
945 | |||
946 | /* | ||
947 | * OK, we're invoking a handler | ||
948 | */ | ||
949 | static void | ||
950 | handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, | ||
951 | sigset_t *oldset, struct pt_regs *regs) | ||
952 | { | ||
953 | int err; | ||
954 | /* are we from a system call? */ | ||
955 | if (regs->orig_d0 >= 0) | ||
956 | /* If so, check system call restarting.. */ | ||
957 | handle_restart(regs, ka, 1); | ||
958 | |||
959 | /* set up the stack frame */ | ||
960 | if (ka->sa.sa_flags & SA_SIGINFO) | ||
961 | err = setup_rt_frame(sig, ka, info, oldset, regs); | ||
962 | else | ||
963 | err = setup_frame(sig, ka, oldset, regs); | ||
964 | |||
965 | if (err) | ||
966 | return; | ||
967 | |||
968 | sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); | ||
969 | if (!(ka->sa.sa_flags & SA_NODEFER)) | ||
970 | sigaddset(¤t->blocked,sig); | ||
971 | recalc_sigpending(); | ||
972 | |||
973 | if (test_thread_flag(TIF_DELAYED_TRACE)) { | ||
974 | regs->sr &= ~0x8000; | ||
975 | send_sig(SIGTRAP, current, 1); | ||
976 | } | ||
977 | |||
978 | clear_thread_flag(TIF_RESTORE_SIGMASK); | ||
979 | } | ||
980 | |||
981 | /* | ||
982 | * Note that 'init' is a special process: it doesn't get signals it doesn't | ||
983 | * want to handle. Thus you cannot kill init even with a SIGKILL even by | ||
984 | * mistake. | ||
985 | */ | ||
986 | asmlinkage void do_signal(struct pt_regs *regs) | ||
987 | { | ||
988 | siginfo_t info; | ||
989 | struct k_sigaction ka; | ||
990 | int signr; | ||
991 | sigset_t *oldset; | ||
992 | |||
993 | current->thread.esp0 = (unsigned long) regs; | ||
994 | |||
995 | if (test_thread_flag(TIF_RESTORE_SIGMASK)) | ||
996 | oldset = ¤t->saved_sigmask; | ||
997 | else | ||
998 | oldset = ¤t->blocked; | ||
999 | |||
1000 | signr = get_signal_to_deliver(&info, &ka, regs, NULL); | ||
1001 | if (signr > 0) { | ||
1002 | /* Whee! Actually deliver the signal. */ | ||
1003 | handle_signal(signr, &ka, &info, oldset, regs); | ||
1004 | return; | ||
1005 | } | ||
1006 | |||
1007 | /* Did we come from a system call? */ | ||
1008 | if (regs->orig_d0 >= 0) | ||
1009 | /* Restart the system call - no handlers present */ | ||
1010 | handle_restart(regs, NULL, 0); | ||
1011 | |||
1012 | /* If there's no signal to deliver, we just restore the saved mask. */ | ||
1013 | if (test_thread_flag(TIF_RESTORE_SIGMASK)) { | ||
1014 | clear_thread_flag(TIF_RESTORE_SIGMASK); | ||
1015 | sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); | ||
1016 | } | ||
1017 | } | ||
diff --git a/arch/m68k/kernel/signal_mm.c b/arch/m68k/kernel/signal_mm.c new file mode 100644 index 000000000000..a0afc239304e --- /dev/null +++ b/arch/m68k/kernel/signal_mm.c | |||
@@ -0,0 +1,1017 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/signal.c | ||
3 | * | ||
4 | * Copyright (C) 1991, 1992 Linus Torvalds | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file COPYING in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | /* | ||
12 | * Linux/m68k support by Hamish Macdonald | ||
13 | * | ||
14 | * 68060 fixes by Jesper Skov | ||
15 | * | ||
16 | * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab | ||
17 | * | ||
18 | * mathemu support by Roman Zippel | ||
19 | * (Note: fpstate in the signal context is completely ignored for the emulator | ||
20 | * and the internal floating point format is put on stack) | ||
21 | */ | ||
22 | |||
23 | /* | ||
24 | * ++roman (07/09/96): implemented signal stacks (specially for tosemu on | ||
25 | * Atari :-) Current limitation: Only one sigstack can be active at one time. | ||
26 | * If a second signal with SA_ONSTACK set arrives while working on a sigstack, | ||
27 | * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested | ||
28 | * signal handlers! | ||
29 | */ | ||
30 | |||
31 | #include <linux/sched.h> | ||
32 | #include <linux/mm.h> | ||
33 | #include <linux/kernel.h> | ||
34 | #include <linux/signal.h> | ||
35 | #include <linux/syscalls.h> | ||
36 | #include <linux/errno.h> | ||
37 | #include <linux/wait.h> | ||
38 | #include <linux/ptrace.h> | ||
39 | #include <linux/unistd.h> | ||
40 | #include <linux/stddef.h> | ||
41 | #include <linux/highuid.h> | ||
42 | #include <linux/personality.h> | ||
43 | #include <linux/tty.h> | ||
44 | #include <linux/binfmts.h> | ||
45 | #include <linux/module.h> | ||
46 | |||
47 | #include <asm/setup.h> | ||
48 | #include <asm/uaccess.h> | ||
49 | #include <asm/pgtable.h> | ||
50 | #include <asm/traps.h> | ||
51 | #include <asm/ucontext.h> | ||
52 | |||
53 | #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) | ||
54 | |||
55 | static const int frame_extra_sizes[16] = { | ||
56 | [1] = -1, /* sizeof(((struct frame *)0)->un.fmt1), */ | ||
57 | [2] = sizeof(((struct frame *)0)->un.fmt2), | ||
58 | [3] = sizeof(((struct frame *)0)->un.fmt3), | ||
59 | [4] = sizeof(((struct frame *)0)->un.fmt4), | ||
60 | [5] = -1, /* sizeof(((struct frame *)0)->un.fmt5), */ | ||
61 | [6] = -1, /* sizeof(((struct frame *)0)->un.fmt6), */ | ||
62 | [7] = sizeof(((struct frame *)0)->un.fmt7), | ||
63 | [8] = -1, /* sizeof(((struct frame *)0)->un.fmt8), */ | ||
64 | [9] = sizeof(((struct frame *)0)->un.fmt9), | ||
65 | [10] = sizeof(((struct frame *)0)->un.fmta), | ||
66 | [11] = sizeof(((struct frame *)0)->un.fmtb), | ||
67 | [12] = -1, /* sizeof(((struct frame *)0)->un.fmtc), */ | ||
68 | [13] = -1, /* sizeof(((struct frame *)0)->un.fmtd), */ | ||
69 | [14] = -1, /* sizeof(((struct frame *)0)->un.fmte), */ | ||
70 | [15] = -1, /* sizeof(((struct frame *)0)->un.fmtf), */ | ||
71 | }; | ||
72 | |||
73 | int handle_kernel_fault(struct pt_regs *regs) | ||
74 | { | ||
75 | const struct exception_table_entry *fixup; | ||
76 | struct pt_regs *tregs; | ||
77 | |||
78 | /* Are we prepared to handle this kernel fault? */ | ||
79 | fixup = search_exception_tables(regs->pc); | ||
80 | if (!fixup) | ||
81 | return 0; | ||
82 | |||
83 | /* Create a new four word stack frame, discarding the old one. */ | ||
84 | regs->stkadj = frame_extra_sizes[regs->format]; | ||
85 | tregs = (struct pt_regs *)((long)regs + regs->stkadj); | ||
86 | tregs->vector = regs->vector; | ||
87 | tregs->format = 0; | ||
88 | tregs->pc = fixup->fixup; | ||
89 | tregs->sr = regs->sr; | ||
90 | |||
91 | return 1; | ||
92 | } | ||
93 | |||
94 | /* | ||
95 | * Atomically swap in the new signal mask, and wait for a signal. | ||
96 | */ | ||
97 | asmlinkage int | ||
98 | sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) | ||
99 | { | ||
100 | mask &= _BLOCKABLE; | ||
101 | spin_lock_irq(¤t->sighand->siglock); | ||
102 | current->saved_sigmask = current->blocked; | ||
103 | siginitset(¤t->blocked, mask); | ||
104 | recalc_sigpending(); | ||
105 | spin_unlock_irq(¤t->sighand->siglock); | ||
106 | |||
107 | current->state = TASK_INTERRUPTIBLE; | ||
108 | schedule(); | ||
109 | set_restore_sigmask(); | ||
110 | |||
111 | return -ERESTARTNOHAND; | ||
112 | } | ||
113 | |||
114 | asmlinkage int | ||
115 | sys_sigaction(int sig, const struct old_sigaction __user *act, | ||
116 | struct old_sigaction __user *oact) | ||
117 | { | ||
118 | struct k_sigaction new_ka, old_ka; | ||
119 | int ret; | ||
120 | |||
121 | if (act) { | ||
122 | old_sigset_t mask; | ||
123 | if (!access_ok(VERIFY_READ, act, sizeof(*act)) || | ||
124 | __get_user(new_ka.sa.sa_handler, &act->sa_handler) || | ||
125 | __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || | ||
126 | __get_user(new_ka.sa.sa_flags, &act->sa_flags) || | ||
127 | __get_user(mask, &act->sa_mask)) | ||
128 | return -EFAULT; | ||
129 | siginitset(&new_ka.sa.sa_mask, mask); | ||
130 | } | ||
131 | |||
132 | ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); | ||
133 | |||
134 | if (!ret && oact) { | ||
135 | if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || | ||
136 | __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || | ||
137 | __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || | ||
138 | __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || | ||
139 | __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) | ||
140 | return -EFAULT; | ||
141 | } | ||
142 | |||
143 | return ret; | ||
144 | } | ||
145 | |||
146 | asmlinkage int | ||
147 | sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) | ||
148 | { | ||
149 | return do_sigaltstack(uss, uoss, rdusp()); | ||
150 | } | ||
151 | |||
152 | |||
153 | /* | ||
154 | * Do a signal return; undo the signal stack. | ||
155 | * | ||
156 | * Keep the return code on the stack quadword aligned! | ||
157 | * That makes the cache flush below easier. | ||
158 | */ | ||
159 | |||
160 | struct sigframe | ||
161 | { | ||
162 | char __user *pretcode; | ||
163 | int sig; | ||
164 | int code; | ||
165 | struct sigcontext __user *psc; | ||
166 | char retcode[8]; | ||
167 | unsigned long extramask[_NSIG_WORDS-1]; | ||
168 | struct sigcontext sc; | ||
169 | }; | ||
170 | |||
171 | struct rt_sigframe | ||
172 | { | ||
173 | char __user *pretcode; | ||
174 | int sig; | ||
175 | struct siginfo __user *pinfo; | ||
176 | void __user *puc; | ||
177 | char retcode[8]; | ||
178 | struct siginfo info; | ||
179 | struct ucontext uc; | ||
180 | }; | ||
181 | |||
182 | |||
183 | static unsigned char fpu_version; /* version number of fpu, set by setup_frame */ | ||
184 | |||
185 | static inline int restore_fpu_state(struct sigcontext *sc) | ||
186 | { | ||
187 | int err = 1; | ||
188 | |||
189 | if (FPU_IS_EMU) { | ||
190 | /* restore registers */ | ||
191 | memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); | ||
192 | memcpy(current->thread.fp, sc->sc_fpregs, 24); | ||
193 | return 0; | ||
194 | } | ||
195 | |||
196 | if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { | ||
197 | /* Verify the frame format. */ | ||
198 | if (!CPU_IS_060 && (sc->sc_fpstate[0] != fpu_version)) | ||
199 | goto out; | ||
200 | if (CPU_IS_020_OR_030) { | ||
201 | if (m68k_fputype & FPU_68881 && | ||
202 | !(sc->sc_fpstate[1] == 0x18 || sc->sc_fpstate[1] == 0xb4)) | ||
203 | goto out; | ||
204 | if (m68k_fputype & FPU_68882 && | ||
205 | !(sc->sc_fpstate[1] == 0x38 || sc->sc_fpstate[1] == 0xd4)) | ||
206 | goto out; | ||
207 | } else if (CPU_IS_040) { | ||
208 | if (!(sc->sc_fpstate[1] == 0x00 || | ||
209 | sc->sc_fpstate[1] == 0x28 || | ||
210 | sc->sc_fpstate[1] == 0x60)) | ||
211 | goto out; | ||
212 | } else if (CPU_IS_060) { | ||
213 | if (!(sc->sc_fpstate[3] == 0x00 || | ||
214 | sc->sc_fpstate[3] == 0x60 || | ||
215 | sc->sc_fpstate[3] == 0xe0)) | ||
216 | goto out; | ||
217 | } else | ||
218 | goto out; | ||
219 | |||
220 | __asm__ volatile (".chip 68k/68881\n\t" | ||
221 | "fmovemx %0,%%fp0-%%fp1\n\t" | ||
222 | "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" | ||
223 | ".chip 68k" | ||
224 | : /* no outputs */ | ||
225 | : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); | ||
226 | } | ||
227 | __asm__ volatile (".chip 68k/68881\n\t" | ||
228 | "frestore %0\n\t" | ||
229 | ".chip 68k" : : "m" (*sc->sc_fpstate)); | ||
230 | err = 0; | ||
231 | |||
232 | out: | ||
233 | return err; | ||
234 | } | ||
235 | |||
236 | #define FPCONTEXT_SIZE 216 | ||
237 | #define uc_fpstate uc_filler[0] | ||
238 | #define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] | ||
239 | #define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] | ||
240 | |||
241 | static inline int rt_restore_fpu_state(struct ucontext __user *uc) | ||
242 | { | ||
243 | unsigned char fpstate[FPCONTEXT_SIZE]; | ||
244 | int context_size = CPU_IS_060 ? 8 : 0; | ||
245 | fpregset_t fpregs; | ||
246 | int err = 1; | ||
247 | |||
248 | if (FPU_IS_EMU) { | ||
249 | /* restore fpu control register */ | ||
250 | if (__copy_from_user(current->thread.fpcntl, | ||
251 | uc->uc_mcontext.fpregs.f_fpcntl, 12)) | ||
252 | goto out; | ||
253 | /* restore all other fpu register */ | ||
254 | if (__copy_from_user(current->thread.fp, | ||
255 | uc->uc_mcontext.fpregs.f_fpregs, 96)) | ||
256 | goto out; | ||
257 | return 0; | ||
258 | } | ||
259 | |||
260 | if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) | ||
261 | goto out; | ||
262 | if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { | ||
263 | if (!CPU_IS_060) | ||
264 | context_size = fpstate[1]; | ||
265 | /* Verify the frame format. */ | ||
266 | if (!CPU_IS_060 && (fpstate[0] != fpu_version)) | ||
267 | goto out; | ||
268 | if (CPU_IS_020_OR_030) { | ||
269 | if (m68k_fputype & FPU_68881 && | ||
270 | !(context_size == 0x18 || context_size == 0xb4)) | ||
271 | goto out; | ||
272 | if (m68k_fputype & FPU_68882 && | ||
273 | !(context_size == 0x38 || context_size == 0xd4)) | ||
274 | goto out; | ||
275 | } else if (CPU_IS_040) { | ||
276 | if (!(context_size == 0x00 || | ||
277 | context_size == 0x28 || | ||
278 | context_size == 0x60)) | ||
279 | goto out; | ||
280 | } else if (CPU_IS_060) { | ||
281 | if (!(fpstate[3] == 0x00 || | ||
282 | fpstate[3] == 0x60 || | ||
283 | fpstate[3] == 0xe0)) | ||
284 | goto out; | ||
285 | } else | ||
286 | goto out; | ||
287 | if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, | ||
288 | sizeof(fpregs))) | ||
289 | goto out; | ||
290 | __asm__ volatile (".chip 68k/68881\n\t" | ||
291 | "fmovemx %0,%%fp0-%%fp7\n\t" | ||
292 | "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" | ||
293 | ".chip 68k" | ||
294 | : /* no outputs */ | ||
295 | : "m" (*fpregs.f_fpregs), | ||
296 | "m" (*fpregs.f_fpcntl)); | ||
297 | } | ||
298 | if (context_size && | ||
299 | __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, | ||
300 | context_size)) | ||
301 | goto out; | ||
302 | __asm__ volatile (".chip 68k/68881\n\t" | ||
303 | "frestore %0\n\t" | ||
304 | ".chip 68k" : : "m" (*fpstate)); | ||
305 | err = 0; | ||
306 | |||
307 | out: | ||
308 | return err; | ||
309 | } | ||
310 | |||
311 | static int mangle_kernel_stack(struct pt_regs *regs, int formatvec, | ||
312 | void __user *fp) | ||
313 | { | ||
314 | int fsize = frame_extra_sizes[formatvec >> 12]; | ||
315 | if (fsize < 0) { | ||
316 | /* | ||
317 | * user process trying to return with weird frame format | ||
318 | */ | ||
319 | #ifdef DEBUG | ||
320 | printk("user process returning with weird frame format\n"); | ||
321 | #endif | ||
322 | return 1; | ||
323 | } | ||
324 | if (!fsize) { | ||
325 | regs->format = formatvec >> 12; | ||
326 | regs->vector = formatvec & 0xfff; | ||
327 | } else { | ||
328 | struct switch_stack *sw = (struct switch_stack *)regs - 1; | ||
329 | unsigned long buf[fsize / 2]; /* yes, twice as much */ | ||
330 | |||
331 | /* that'll make sure that expansion won't crap over data */ | ||
332 | if (copy_from_user(buf + fsize / 4, fp, fsize)) | ||
333 | return 1; | ||
334 | |||
335 | /* point of no return */ | ||
336 | regs->format = formatvec >> 12; | ||
337 | regs->vector = formatvec & 0xfff; | ||
338 | #define frame_offset (sizeof(struct pt_regs)+sizeof(struct switch_stack)) | ||
339 | __asm__ __volatile__ | ||
340 | (" movel %0,%/a0\n\t" | ||
341 | " subl %1,%/a0\n\t" /* make room on stack */ | ||
342 | " movel %/a0,%/sp\n\t" /* set stack pointer */ | ||
343 | /* move switch_stack and pt_regs */ | ||
344 | "1: movel %0@+,%/a0@+\n\t" | ||
345 | " dbra %2,1b\n\t" | ||
346 | " lea %/sp@(%c3),%/a0\n\t" /* add offset of fmt */ | ||
347 | " lsrl #2,%1\n\t" | ||
348 | " subql #1,%1\n\t" | ||
349 | /* copy to the gap we'd made */ | ||
350 | "2: movel %4@+,%/a0@+\n\t" | ||
351 | " dbra %1,2b\n\t" | ||
352 | " bral ret_from_signal\n" | ||
353 | : /* no outputs, it doesn't ever return */ | ||
354 | : "a" (sw), "d" (fsize), "d" (frame_offset/4-1), | ||
355 | "n" (frame_offset), "a" (buf + fsize/4) | ||
356 | : "a0"); | ||
357 | #undef frame_offset | ||
358 | } | ||
359 | return 0; | ||
360 | } | ||
361 | |||
362 | static inline int | ||
363 | restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp) | ||
364 | { | ||
365 | int formatvec; | ||
366 | struct sigcontext context; | ||
367 | int err; | ||
368 | |||
369 | /* Always make any pending restarted system calls return -EINTR */ | ||
370 | current_thread_info()->restart_block.fn = do_no_restart_syscall; | ||
371 | |||
372 | /* get previous context */ | ||
373 | if (copy_from_user(&context, usc, sizeof(context))) | ||
374 | goto badframe; | ||
375 | |||
376 | /* restore passed registers */ | ||
377 | regs->d0 = context.sc_d0; | ||
378 | regs->d1 = context.sc_d1; | ||
379 | regs->a0 = context.sc_a0; | ||
380 | regs->a1 = context.sc_a1; | ||
381 | regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); | ||
382 | regs->pc = context.sc_pc; | ||
383 | regs->orig_d0 = -1; /* disable syscall checks */ | ||
384 | wrusp(context.sc_usp); | ||
385 | formatvec = context.sc_formatvec; | ||
386 | |||
387 | err = restore_fpu_state(&context); | ||
388 | |||
389 | if (err || mangle_kernel_stack(regs, formatvec, fp)) | ||
390 | goto badframe; | ||
391 | |||
392 | return 0; | ||
393 | |||
394 | badframe: | ||
395 | return 1; | ||
396 | } | ||
397 | |||
398 | static inline int | ||
399 | rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, | ||
400 | struct ucontext __user *uc) | ||
401 | { | ||
402 | int temp; | ||
403 | greg_t __user *gregs = uc->uc_mcontext.gregs; | ||
404 | unsigned long usp; | ||
405 | int err; | ||
406 | |||
407 | /* Always make any pending restarted system calls return -EINTR */ | ||
408 | current_thread_info()->restart_block.fn = do_no_restart_syscall; | ||
409 | |||
410 | err = __get_user(temp, &uc->uc_mcontext.version); | ||
411 | if (temp != MCONTEXT_VERSION) | ||
412 | goto badframe; | ||
413 | /* restore passed registers */ | ||
414 | err |= __get_user(regs->d0, &gregs[0]); | ||
415 | err |= __get_user(regs->d1, &gregs[1]); | ||
416 | err |= __get_user(regs->d2, &gregs[2]); | ||
417 | err |= __get_user(regs->d3, &gregs[3]); | ||
418 | err |= __get_user(regs->d4, &gregs[4]); | ||
419 | err |= __get_user(regs->d5, &gregs[5]); | ||
420 | err |= __get_user(sw->d6, &gregs[6]); | ||
421 | err |= __get_user(sw->d7, &gregs[7]); | ||
422 | err |= __get_user(regs->a0, &gregs[8]); | ||
423 | err |= __get_user(regs->a1, &gregs[9]); | ||
424 | err |= __get_user(regs->a2, &gregs[10]); | ||
425 | err |= __get_user(sw->a3, &gregs[11]); | ||
426 | err |= __get_user(sw->a4, &gregs[12]); | ||
427 | err |= __get_user(sw->a5, &gregs[13]); | ||
428 | err |= __get_user(sw->a6, &gregs[14]); | ||
429 | err |= __get_user(usp, &gregs[15]); | ||
430 | wrusp(usp); | ||
431 | err |= __get_user(regs->pc, &gregs[16]); | ||
432 | err |= __get_user(temp, &gregs[17]); | ||
433 | regs->sr = (regs->sr & 0xff00) | (temp & 0xff); | ||
434 | regs->orig_d0 = -1; /* disable syscall checks */ | ||
435 | err |= __get_user(temp, &uc->uc_formatvec); | ||
436 | |||
437 | err |= rt_restore_fpu_state(uc); | ||
438 | |||
439 | if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) | ||
440 | goto badframe; | ||
441 | |||
442 | if (mangle_kernel_stack(regs, temp, &uc->uc_extra)) | ||
443 | goto badframe; | ||
444 | |||
445 | return 0; | ||
446 | |||
447 | badframe: | ||
448 | return 1; | ||
449 | } | ||
450 | |||
451 | asmlinkage int do_sigreturn(unsigned long __unused) | ||
452 | { | ||
453 | struct switch_stack *sw = (struct switch_stack *) &__unused; | ||
454 | struct pt_regs *regs = (struct pt_regs *) (sw + 1); | ||
455 | unsigned long usp = rdusp(); | ||
456 | struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); | ||
457 | sigset_t set; | ||
458 | |||
459 | if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) | ||
460 | goto badframe; | ||
461 | if (__get_user(set.sig[0], &frame->sc.sc_mask) || | ||
462 | (_NSIG_WORDS > 1 && | ||
463 | __copy_from_user(&set.sig[1], &frame->extramask, | ||
464 | sizeof(frame->extramask)))) | ||
465 | goto badframe; | ||
466 | |||
467 | sigdelsetmask(&set, ~_BLOCKABLE); | ||
468 | current->blocked = set; | ||
469 | recalc_sigpending(); | ||
470 | |||
471 | if (restore_sigcontext(regs, &frame->sc, frame + 1)) | ||
472 | goto badframe; | ||
473 | return regs->d0; | ||
474 | |||
475 | badframe: | ||
476 | force_sig(SIGSEGV, current); | ||
477 | return 0; | ||
478 | } | ||
479 | |||
480 | asmlinkage int do_rt_sigreturn(unsigned long __unused) | ||
481 | { | ||
482 | struct switch_stack *sw = (struct switch_stack *) &__unused; | ||
483 | struct pt_regs *regs = (struct pt_regs *) (sw + 1); | ||
484 | unsigned long usp = rdusp(); | ||
485 | struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); | ||
486 | sigset_t set; | ||
487 | |||
488 | if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) | ||
489 | goto badframe; | ||
490 | if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) | ||
491 | goto badframe; | ||
492 | |||
493 | sigdelsetmask(&set, ~_BLOCKABLE); | ||
494 | current->blocked = set; | ||
495 | recalc_sigpending(); | ||
496 | |||
497 | if (rt_restore_ucontext(regs, sw, &frame->uc)) | ||
498 | goto badframe; | ||
499 | return regs->d0; | ||
500 | |||
501 | badframe: | ||
502 | force_sig(SIGSEGV, current); | ||
503 | return 0; | ||
504 | } | ||
505 | |||
506 | /* | ||
507 | * Set up a signal frame. | ||
508 | */ | ||
509 | |||
510 | static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) | ||
511 | { | ||
512 | if (FPU_IS_EMU) { | ||
513 | /* save registers */ | ||
514 | memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); | ||
515 | memcpy(sc->sc_fpregs, current->thread.fp, 24); | ||
516 | return; | ||
517 | } | ||
518 | |||
519 | __asm__ volatile (".chip 68k/68881\n\t" | ||
520 | "fsave %0\n\t" | ||
521 | ".chip 68k" | ||
522 | : : "m" (*sc->sc_fpstate) : "memory"); | ||
523 | |||
524 | if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { | ||
525 | fpu_version = sc->sc_fpstate[0]; | ||
526 | if (CPU_IS_020_OR_030 && | ||
527 | regs->vector >= (VEC_FPBRUC * 4) && | ||
528 | regs->vector <= (VEC_FPNAN * 4)) { | ||
529 | /* Clear pending exception in 68882 idle frame */ | ||
530 | if (*(unsigned short *) sc->sc_fpstate == 0x1f38) | ||
531 | sc->sc_fpstate[0x38] |= 1 << 3; | ||
532 | } | ||
533 | __asm__ volatile (".chip 68k/68881\n\t" | ||
534 | "fmovemx %%fp0-%%fp1,%0\n\t" | ||
535 | "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" | ||
536 | ".chip 68k" | ||
537 | : "=m" (*sc->sc_fpregs), | ||
538 | "=m" (*sc->sc_fpcntl) | ||
539 | : /* no inputs */ | ||
540 | : "memory"); | ||
541 | } | ||
542 | } | ||
543 | |||
544 | static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) | ||
545 | { | ||
546 | unsigned char fpstate[FPCONTEXT_SIZE]; | ||
547 | int context_size = CPU_IS_060 ? 8 : 0; | ||
548 | int err = 0; | ||
549 | |||
550 | if (FPU_IS_EMU) { | ||
551 | /* save fpu control register */ | ||
552 | err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpcntl, | ||
553 | current->thread.fpcntl, 12); | ||
554 | /* save all other fpu register */ | ||
555 | err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, | ||
556 | current->thread.fp, 96); | ||
557 | return err; | ||
558 | } | ||
559 | |||
560 | __asm__ volatile (".chip 68k/68881\n\t" | ||
561 | "fsave %0\n\t" | ||
562 | ".chip 68k" | ||
563 | : : "m" (*fpstate) : "memory"); | ||
564 | |||
565 | err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); | ||
566 | if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { | ||
567 | fpregset_t fpregs; | ||
568 | if (!CPU_IS_060) | ||
569 | context_size = fpstate[1]; | ||
570 | fpu_version = fpstate[0]; | ||
571 | if (CPU_IS_020_OR_030 && | ||
572 | regs->vector >= (VEC_FPBRUC * 4) && | ||
573 | regs->vector <= (VEC_FPNAN * 4)) { | ||
574 | /* Clear pending exception in 68882 idle frame */ | ||
575 | if (*(unsigned short *) fpstate == 0x1f38) | ||
576 | fpstate[0x38] |= 1 << 3; | ||
577 | } | ||
578 | __asm__ volatile (".chip 68k/68881\n\t" | ||
579 | "fmovemx %%fp0-%%fp7,%0\n\t" | ||
580 | "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" | ||
581 | ".chip 68k" | ||
582 | : "=m" (*fpregs.f_fpregs), | ||
583 | "=m" (*fpregs.f_fpcntl) | ||
584 | : /* no inputs */ | ||
585 | : "memory"); | ||
586 | err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, | ||
587 | sizeof(fpregs)); | ||
588 | } | ||
589 | if (context_size) | ||
590 | err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, | ||
591 | context_size); | ||
592 | return err; | ||
593 | } | ||
594 | |||
595 | static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, | ||
596 | unsigned long mask) | ||
597 | { | ||
598 | sc->sc_mask = mask; | ||
599 | sc->sc_usp = rdusp(); | ||
600 | sc->sc_d0 = regs->d0; | ||
601 | sc->sc_d1 = regs->d1; | ||
602 | sc->sc_a0 = regs->a0; | ||
603 | sc->sc_a1 = regs->a1; | ||
604 | sc->sc_sr = regs->sr; | ||
605 | sc->sc_pc = regs->pc; | ||
606 | sc->sc_formatvec = regs->format << 12 | regs->vector; | ||
607 | save_fpu_state(sc, regs); | ||
608 | } | ||
609 | |||
610 | static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) | ||
611 | { | ||
612 | struct switch_stack *sw = (struct switch_stack *)regs - 1; | ||
613 | greg_t __user *gregs = uc->uc_mcontext.gregs; | ||
614 | int err = 0; | ||
615 | |||
616 | err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); | ||
617 | err |= __put_user(regs->d0, &gregs[0]); | ||
618 | err |= __put_user(regs->d1, &gregs[1]); | ||
619 | err |= __put_user(regs->d2, &gregs[2]); | ||
620 | err |= __put_user(regs->d3, &gregs[3]); | ||
621 | err |= __put_user(regs->d4, &gregs[4]); | ||
622 | err |= __put_user(regs->d5, &gregs[5]); | ||
623 | err |= __put_user(sw->d6, &gregs[6]); | ||
624 | err |= __put_user(sw->d7, &gregs[7]); | ||
625 | err |= __put_user(regs->a0, &gregs[8]); | ||
626 | err |= __put_user(regs->a1, &gregs[9]); | ||
627 | err |= __put_user(regs->a2, &gregs[10]); | ||
628 | err |= __put_user(sw->a3, &gregs[11]); | ||
629 | err |= __put_user(sw->a4, &gregs[12]); | ||
630 | err |= __put_user(sw->a5, &gregs[13]); | ||
631 | err |= __put_user(sw->a6, &gregs[14]); | ||
632 | err |= __put_user(rdusp(), &gregs[15]); | ||
633 | err |= __put_user(regs->pc, &gregs[16]); | ||
634 | err |= __put_user(regs->sr, &gregs[17]); | ||
635 | err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec); | ||
636 | err |= rt_save_fpu_state(uc, regs); | ||
637 | return err; | ||
638 | } | ||
639 | |||
640 | static inline void push_cache (unsigned long vaddr) | ||
641 | { | ||
642 | /* | ||
643 | * Using the old cache_push_v() was really a big waste. | ||
644 | * | ||
645 | * What we are trying to do is to flush 8 bytes to ram. | ||
646 | * Flushing 2 cache lines of 16 bytes is much cheaper than | ||
647 | * flushing 1 or 2 pages, as previously done in | ||
648 | * cache_push_v(). | ||
649 | * Jes | ||
650 | */ | ||
651 | if (CPU_IS_040) { | ||
652 | unsigned long temp; | ||
653 | |||
654 | __asm__ __volatile__ (".chip 68040\n\t" | ||
655 | "nop\n\t" | ||
656 | "ptestr (%1)\n\t" | ||
657 | "movec %%mmusr,%0\n\t" | ||
658 | ".chip 68k" | ||
659 | : "=r" (temp) | ||
660 | : "a" (vaddr)); | ||
661 | |||
662 | temp &= PAGE_MASK; | ||
663 | temp |= vaddr & ~PAGE_MASK; | ||
664 | |||
665 | __asm__ __volatile__ (".chip 68040\n\t" | ||
666 | "nop\n\t" | ||
667 | "cpushl %%bc,(%0)\n\t" | ||
668 | ".chip 68k" | ||
669 | : : "a" (temp)); | ||
670 | } | ||
671 | else if (CPU_IS_060) { | ||
672 | unsigned long temp; | ||
673 | __asm__ __volatile__ (".chip 68060\n\t" | ||
674 | "plpar (%0)\n\t" | ||
675 | ".chip 68k" | ||
676 | : "=a" (temp) | ||
677 | : "0" (vaddr)); | ||
678 | __asm__ __volatile__ (".chip 68060\n\t" | ||
679 | "cpushl %%bc,(%0)\n\t" | ||
680 | ".chip 68k" | ||
681 | : : "a" (temp)); | ||
682 | } | ||
683 | else { | ||
684 | /* | ||
685 | * 68030/68020 have no writeback cache; | ||
686 | * still need to clear icache. | ||
687 | * Note that vaddr is guaranteed to be long word aligned. | ||
688 | */ | ||
689 | unsigned long temp; | ||
690 | asm volatile ("movec %%cacr,%0" : "=r" (temp)); | ||
691 | temp += 4; | ||
692 | asm volatile ("movec %0,%%caar\n\t" | ||
693 | "movec %1,%%cacr" | ||
694 | : : "r" (vaddr), "r" (temp)); | ||
695 | asm volatile ("movec %0,%%caar\n\t" | ||
696 | "movec %1,%%cacr" | ||
697 | : : "r" (vaddr + 4), "r" (temp)); | ||
698 | } | ||
699 | } | ||
700 | |||
701 | static inline void __user * | ||
702 | get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) | ||
703 | { | ||
704 | unsigned long usp; | ||
705 | |||
706 | /* Default to using normal stack. */ | ||
707 | usp = rdusp(); | ||
708 | |||
709 | /* This is the X/Open sanctioned signal stack switching. */ | ||
710 | if (ka->sa.sa_flags & SA_ONSTACK) { | ||
711 | if (!sas_ss_flags(usp)) | ||
712 | usp = current->sas_ss_sp + current->sas_ss_size; | ||
713 | } | ||
714 | return (void __user *)((usp - frame_size) & -8UL); | ||
715 | } | ||
716 | |||
717 | static int setup_frame (int sig, struct k_sigaction *ka, | ||
718 | sigset_t *set, struct pt_regs *regs) | ||
719 | { | ||
720 | struct sigframe __user *frame; | ||
721 | int fsize = frame_extra_sizes[regs->format]; | ||
722 | struct sigcontext context; | ||
723 | int err = 0; | ||
724 | |||
725 | if (fsize < 0) { | ||
726 | #ifdef DEBUG | ||
727 | printk ("setup_frame: Unknown frame format %#x\n", | ||
728 | regs->format); | ||
729 | #endif | ||
730 | goto give_sigsegv; | ||
731 | } | ||
732 | |||
733 | frame = get_sigframe(ka, regs, sizeof(*frame) + fsize); | ||
734 | |||
735 | if (fsize) | ||
736 | err |= copy_to_user (frame + 1, regs + 1, fsize); | ||
737 | |||
738 | err |= __put_user((current_thread_info()->exec_domain | ||
739 | && current_thread_info()->exec_domain->signal_invmap | ||
740 | && sig < 32 | ||
741 | ? current_thread_info()->exec_domain->signal_invmap[sig] | ||
742 | : sig), | ||
743 | &frame->sig); | ||
744 | |||
745 | err |= __put_user(regs->vector, &frame->code); | ||
746 | err |= __put_user(&frame->sc, &frame->psc); | ||
747 | |||
748 | if (_NSIG_WORDS > 1) | ||
749 | err |= copy_to_user(frame->extramask, &set->sig[1], | ||
750 | sizeof(frame->extramask)); | ||
751 | |||
752 | setup_sigcontext(&context, regs, set->sig[0]); | ||
753 | err |= copy_to_user (&frame->sc, &context, sizeof(context)); | ||
754 | |||
755 | /* Set up to return from userspace. */ | ||
756 | err |= __put_user(frame->retcode, &frame->pretcode); | ||
757 | /* moveq #,d0; trap #0 */ | ||
758 | err |= __put_user(0x70004e40 + (__NR_sigreturn << 16), | ||
759 | (long __user *)(frame->retcode)); | ||
760 | |||
761 | if (err) | ||
762 | goto give_sigsegv; | ||
763 | |||
764 | push_cache ((unsigned long) &frame->retcode); | ||
765 | |||
766 | /* | ||
767 | * Set up registers for signal handler. All the state we are about | ||
768 | * to destroy is successfully copied to sigframe. | ||
769 | */ | ||
770 | wrusp ((unsigned long) frame); | ||
771 | regs->pc = (unsigned long) ka->sa.sa_handler; | ||
772 | |||
773 | /* | ||
774 | * This is subtle; if we build more than one sigframe, all but the | ||
775 | * first one will see frame format 0 and have fsize == 0, so we won't | ||
776 | * screw stkadj. | ||
777 | */ | ||
778 | if (fsize) | ||
779 | regs->stkadj = fsize; | ||
780 | |||
781 | /* Prepare to skip over the extra stuff in the exception frame. */ | ||
782 | if (regs->stkadj) { | ||
783 | struct pt_regs *tregs = | ||
784 | (struct pt_regs *)((ulong)regs + regs->stkadj); | ||
785 | #ifdef DEBUG | ||
786 | printk("Performing stackadjust=%04x\n", regs->stkadj); | ||
787 | #endif | ||
788 | /* This must be copied with decreasing addresses to | ||
789 | handle overlaps. */ | ||
790 | tregs->vector = 0; | ||
791 | tregs->format = 0; | ||
792 | tregs->pc = regs->pc; | ||
793 | tregs->sr = regs->sr; | ||
794 | } | ||
795 | return 0; | ||
796 | |||
797 | give_sigsegv: | ||
798 | force_sigsegv(sig, current); | ||
799 | return err; | ||
800 | } | ||
801 | |||
802 | static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, | ||
803 | sigset_t *set, struct pt_regs *regs) | ||
804 | { | ||
805 | struct rt_sigframe __user *frame; | ||
806 | int fsize = frame_extra_sizes[regs->format]; | ||
807 | int err = 0; | ||
808 | |||
809 | if (fsize < 0) { | ||
810 | #ifdef DEBUG | ||
811 | printk ("setup_frame: Unknown frame format %#x\n", | ||
812 | regs->format); | ||
813 | #endif | ||
814 | goto give_sigsegv; | ||
815 | } | ||
816 | |||
817 | frame = get_sigframe(ka, regs, sizeof(*frame)); | ||
818 | |||
819 | if (fsize) | ||
820 | err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize); | ||
821 | |||
822 | err |= __put_user((current_thread_info()->exec_domain | ||
823 | && current_thread_info()->exec_domain->signal_invmap | ||
824 | && sig < 32 | ||
825 | ? current_thread_info()->exec_domain->signal_invmap[sig] | ||
826 | : sig), | ||
827 | &frame->sig); | ||
828 | err |= __put_user(&frame->info, &frame->pinfo); | ||
829 | err |= __put_user(&frame->uc, &frame->puc); | ||
830 | err |= copy_siginfo_to_user(&frame->info, info); | ||
831 | |||
832 | /* Create the ucontext. */ | ||
833 | err |= __put_user(0, &frame->uc.uc_flags); | ||
834 | err |= __put_user(NULL, &frame->uc.uc_link); | ||
835 | err |= __put_user((void __user *)current->sas_ss_sp, | ||
836 | &frame->uc.uc_stack.ss_sp); | ||
837 | err |= __put_user(sas_ss_flags(rdusp()), | ||
838 | &frame->uc.uc_stack.ss_flags); | ||
839 | err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); | ||
840 | err |= rt_setup_ucontext(&frame->uc, regs); | ||
841 | err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); | ||
842 | |||
843 | /* Set up to return from userspace. */ | ||
844 | err |= __put_user(frame->retcode, &frame->pretcode); | ||
845 | #ifdef __mcoldfire__ | ||
846 | /* movel #__NR_rt_sigreturn,d0; trap #0 */ | ||
847 | err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0)); | ||
848 | err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16), | ||
849 | (long __user *)(frame->retcode + 4)); | ||
850 | #else | ||
851 | /* moveq #,d0; notb d0; trap #0 */ | ||
852 | err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16), | ||
853 | (long __user *)(frame->retcode + 0)); | ||
854 | err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4)); | ||
855 | #endif | ||
856 | |||
857 | if (err) | ||
858 | goto give_sigsegv; | ||
859 | |||
860 | push_cache ((unsigned long) &frame->retcode); | ||
861 | |||
862 | /* | ||
863 | * Set up registers for signal handler. All the state we are about | ||
864 | * to destroy is successfully copied to sigframe. | ||
865 | */ | ||
866 | wrusp ((unsigned long) frame); | ||
867 | regs->pc = (unsigned long) ka->sa.sa_handler; | ||
868 | |||
869 | /* | ||
870 | * This is subtle; if we build more than one sigframe, all but the | ||
871 | * first one will see frame format 0 and have fsize == 0, so we won't | ||
872 | * screw stkadj. | ||
873 | */ | ||
874 | if (fsize) | ||
875 | regs->stkadj = fsize; | ||
876 | |||
877 | /* Prepare to skip over the extra stuff in the exception frame. */ | ||
878 | if (regs->stkadj) { | ||
879 | struct pt_regs *tregs = | ||
880 | (struct pt_regs *)((ulong)regs + regs->stkadj); | ||
881 | #ifdef DEBUG | ||
882 | printk("Performing stackadjust=%04x\n", regs->stkadj); | ||
883 | #endif | ||
884 | /* This must be copied with decreasing addresses to | ||
885 | handle overlaps. */ | ||
886 | tregs->vector = 0; | ||
887 | tregs->format = 0; | ||
888 | tregs->pc = regs->pc; | ||
889 | tregs->sr = regs->sr; | ||
890 | } | ||
891 | return 0; | ||
892 | |||
893 | give_sigsegv: | ||
894 | force_sigsegv(sig, current); | ||
895 | return err; | ||
896 | } | ||
897 | |||
898 | static inline void | ||
899 | handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) | ||
900 | { | ||
901 | switch (regs->d0) { | ||
902 | case -ERESTARTNOHAND: | ||
903 | if (!has_handler) | ||
904 | goto do_restart; | ||
905 | regs->d0 = -EINTR; | ||
906 | break; | ||
907 | |||
908 | case -ERESTART_RESTARTBLOCK: | ||
909 | if (!has_handler) { | ||
910 | regs->d0 = __NR_restart_syscall; | ||
911 | regs->pc -= 2; | ||
912 | break; | ||
913 | } | ||
914 | regs->d0 = -EINTR; | ||
915 | break; | ||
916 | |||
917 | case -ERESTARTSYS: | ||
918 | if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { | ||
919 | regs->d0 = -EINTR; | ||
920 | break; | ||
921 | } | ||
922 | /* fallthrough */ | ||
923 | case -ERESTARTNOINTR: | ||
924 | do_restart: | ||
925 | regs->d0 = regs->orig_d0; | ||
926 | regs->pc -= 2; | ||
927 | break; | ||
928 | } | ||
929 | } | ||
930 | |||
931 | void ptrace_signal_deliver(struct pt_regs *regs, void *cookie) | ||
932 | { | ||
933 | if (regs->orig_d0 < 0) | ||
934 | return; | ||
935 | switch (regs->d0) { | ||
936 | case -ERESTARTNOHAND: | ||
937 | case -ERESTARTSYS: | ||
938 | case -ERESTARTNOINTR: | ||
939 | regs->d0 = regs->orig_d0; | ||
940 | regs->orig_d0 = -1; | ||
941 | regs->pc -= 2; | ||
942 | break; | ||
943 | } | ||
944 | } | ||
945 | |||
946 | /* | ||
947 | * OK, we're invoking a handler | ||
948 | */ | ||
949 | static void | ||
950 | handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, | ||
951 | sigset_t *oldset, struct pt_regs *regs) | ||
952 | { | ||
953 | int err; | ||
954 | /* are we from a system call? */ | ||
955 | if (regs->orig_d0 >= 0) | ||
956 | /* If so, check system call restarting.. */ | ||
957 | handle_restart(regs, ka, 1); | ||
958 | |||
959 | /* set up the stack frame */ | ||
960 | if (ka->sa.sa_flags & SA_SIGINFO) | ||
961 | err = setup_rt_frame(sig, ka, info, oldset, regs); | ||
962 | else | ||
963 | err = setup_frame(sig, ka, oldset, regs); | ||
964 | |||
965 | if (err) | ||
966 | return; | ||
967 | |||
968 | sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); | ||
969 | if (!(ka->sa.sa_flags & SA_NODEFER)) | ||
970 | sigaddset(¤t->blocked,sig); | ||
971 | recalc_sigpending(); | ||
972 | |||
973 | if (test_thread_flag(TIF_DELAYED_TRACE)) { | ||
974 | regs->sr &= ~0x8000; | ||
975 | send_sig(SIGTRAP, current, 1); | ||
976 | } | ||
977 | |||
978 | clear_thread_flag(TIF_RESTORE_SIGMASK); | ||
979 | } | ||
980 | |||
981 | /* | ||
982 | * Note that 'init' is a special process: it doesn't get signals it doesn't | ||
983 | * want to handle. Thus you cannot kill init even with a SIGKILL even by | ||
984 | * mistake. | ||
985 | */ | ||
986 | asmlinkage void do_signal(struct pt_regs *regs) | ||
987 | { | ||
988 | siginfo_t info; | ||
989 | struct k_sigaction ka; | ||
990 | int signr; | ||
991 | sigset_t *oldset; | ||
992 | |||
993 | current->thread.esp0 = (unsigned long) regs; | ||
994 | |||
995 | if (test_thread_flag(TIF_RESTORE_SIGMASK)) | ||
996 | oldset = ¤t->saved_sigmask; | ||
997 | else | ||
998 | oldset = ¤t->blocked; | ||
999 | |||
1000 | signr = get_signal_to_deliver(&info, &ka, regs, NULL); | ||
1001 | if (signr > 0) { | ||
1002 | /* Whee! Actually deliver the signal. */ | ||
1003 | handle_signal(signr, &ka, &info, oldset, regs); | ||
1004 | return; | ||
1005 | } | ||
1006 | |||
1007 | /* Did we come from a system call? */ | ||
1008 | if (regs->orig_d0 >= 0) | ||
1009 | /* Restart the system call - no handlers present */ | ||
1010 | handle_restart(regs, NULL, 0); | ||
1011 | |||
1012 | /* If there's no signal to deliver, we just restore the saved mask. */ | ||
1013 | if (test_thread_flag(TIF_RESTORE_SIGMASK)) { | ||
1014 | clear_thread_flag(TIF_RESTORE_SIGMASK); | ||
1015 | sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); | ||
1016 | } | ||
1017 | } | ||
diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68k/kernel/signal_no.c index 36a81bb6835a..36a81bb6835a 100644 --- a/arch/m68knommu/kernel/signal.c +++ b/arch/m68k/kernel/signal_no.c | |||
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c index 3db2e7f902aa..63013df33584 100644 --- a/arch/m68k/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k.c | |||
@@ -1,546 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/sys_m68k.c | 2 | #include "sys_m68k_mm.c" |
3 | * | 3 | #else |
4 | * This file contains various random system calls that | 4 | #include "sys_m68k_no.c" |
5 | * have a non-standard calling sequence on the Linux/m68k | 5 | #endif |
6 | * platform. | ||
7 | */ | ||
8 | |||
9 | #include <linux/capability.h> | ||
10 | #include <linux/errno.h> | ||
11 | #include <linux/sched.h> | ||
12 | #include <linux/mm.h> | ||
13 | #include <linux/fs.h> | ||
14 | #include <linux/smp.h> | ||
15 | #include <linux/sem.h> | ||
16 | #include <linux/msg.h> | ||
17 | #include <linux/shm.h> | ||
18 | #include <linux/stat.h> | ||
19 | #include <linux/syscalls.h> | ||
20 | #include <linux/mman.h> | ||
21 | #include <linux/file.h> | ||
22 | #include <linux/ipc.h> | ||
23 | |||
24 | #include <asm/setup.h> | ||
25 | #include <asm/uaccess.h> | ||
26 | #include <asm/cachectl.h> | ||
27 | #include <asm/traps.h> | ||
28 | #include <asm/page.h> | ||
29 | #include <asm/unistd.h> | ||
30 | #include <linux/elf.h> | ||
31 | #include <asm/tlb.h> | ||
32 | |||
33 | asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, | ||
34 | unsigned long error_code); | ||
35 | |||
36 | asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, | ||
37 | unsigned long prot, unsigned long flags, | ||
38 | unsigned long fd, unsigned long pgoff) | ||
39 | { | ||
40 | /* | ||
41 | * This is wrong for sun3 - there PAGE_SIZE is 8Kb, | ||
42 | * so we need to shift the argument down by 1; m68k mmap64(3) | ||
43 | * (in libc) expects the last argument of mmap2 in 4Kb units. | ||
44 | */ | ||
45 | return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); | ||
46 | } | ||
47 | |||
48 | /* Convert virtual (user) address VADDR to physical address PADDR */ | ||
49 | #define virt_to_phys_040(vaddr) \ | ||
50 | ({ \ | ||
51 | unsigned long _mmusr, _paddr; \ | ||
52 | \ | ||
53 | __asm__ __volatile__ (".chip 68040\n\t" \ | ||
54 | "ptestr (%1)\n\t" \ | ||
55 | "movec %%mmusr,%0\n\t" \ | ||
56 | ".chip 68k" \ | ||
57 | : "=r" (_mmusr) \ | ||
58 | : "a" (vaddr)); \ | ||
59 | _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0; \ | ||
60 | _paddr; \ | ||
61 | }) | ||
62 | |||
63 | static inline int | ||
64 | cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len) | ||
65 | { | ||
66 | unsigned long paddr, i; | ||
67 | |||
68 | switch (scope) | ||
69 | { | ||
70 | case FLUSH_SCOPE_ALL: | ||
71 | switch (cache) | ||
72 | { | ||
73 | case FLUSH_CACHE_DATA: | ||
74 | /* This nop is needed for some broken versions of the 68040. */ | ||
75 | __asm__ __volatile__ ("nop\n\t" | ||
76 | ".chip 68040\n\t" | ||
77 | "cpusha %dc\n\t" | ||
78 | ".chip 68k"); | ||
79 | break; | ||
80 | case FLUSH_CACHE_INSN: | ||
81 | __asm__ __volatile__ ("nop\n\t" | ||
82 | ".chip 68040\n\t" | ||
83 | "cpusha %ic\n\t" | ||
84 | ".chip 68k"); | ||
85 | break; | ||
86 | default: | ||
87 | case FLUSH_CACHE_BOTH: | ||
88 | __asm__ __volatile__ ("nop\n\t" | ||
89 | ".chip 68040\n\t" | ||
90 | "cpusha %bc\n\t" | ||
91 | ".chip 68k"); | ||
92 | break; | ||
93 | } | ||
94 | break; | ||
95 | |||
96 | case FLUSH_SCOPE_LINE: | ||
97 | /* Find the physical address of the first mapped page in the | ||
98 | address range. */ | ||
99 | if ((paddr = virt_to_phys_040(addr))) { | ||
100 | paddr += addr & ~(PAGE_MASK | 15); | ||
101 | len = (len + (addr & 15) + 15) >> 4; | ||
102 | } else { | ||
103 | unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); | ||
104 | |||
105 | if (len <= tmp) | ||
106 | return 0; | ||
107 | addr += tmp; | ||
108 | len -= tmp; | ||
109 | tmp = PAGE_SIZE; | ||
110 | for (;;) | ||
111 | { | ||
112 | if ((paddr = virt_to_phys_040(addr))) | ||
113 | break; | ||
114 | if (len <= tmp) | ||
115 | return 0; | ||
116 | addr += tmp; | ||
117 | len -= tmp; | ||
118 | } | ||
119 | len = (len + 15) >> 4; | ||
120 | } | ||
121 | i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; | ||
122 | while (len--) | ||
123 | { | ||
124 | switch (cache) | ||
125 | { | ||
126 | case FLUSH_CACHE_DATA: | ||
127 | __asm__ __volatile__ ("nop\n\t" | ||
128 | ".chip 68040\n\t" | ||
129 | "cpushl %%dc,(%0)\n\t" | ||
130 | ".chip 68k" | ||
131 | : : "a" (paddr)); | ||
132 | break; | ||
133 | case FLUSH_CACHE_INSN: | ||
134 | __asm__ __volatile__ ("nop\n\t" | ||
135 | ".chip 68040\n\t" | ||
136 | "cpushl %%ic,(%0)\n\t" | ||
137 | ".chip 68k" | ||
138 | : : "a" (paddr)); | ||
139 | break; | ||
140 | default: | ||
141 | case FLUSH_CACHE_BOTH: | ||
142 | __asm__ __volatile__ ("nop\n\t" | ||
143 | ".chip 68040\n\t" | ||
144 | "cpushl %%bc,(%0)\n\t" | ||
145 | ".chip 68k" | ||
146 | : : "a" (paddr)); | ||
147 | break; | ||
148 | } | ||
149 | if (!--i && len) | ||
150 | { | ||
151 | /* | ||
152 | * No need to page align here since it is done by | ||
153 | * virt_to_phys_040(). | ||
154 | */ | ||
155 | addr += PAGE_SIZE; | ||
156 | i = PAGE_SIZE / 16; | ||
157 | /* Recompute physical address when crossing a page | ||
158 | boundary. */ | ||
159 | for (;;) | ||
160 | { | ||
161 | if ((paddr = virt_to_phys_040(addr))) | ||
162 | break; | ||
163 | if (len <= i) | ||
164 | return 0; | ||
165 | len -= i; | ||
166 | addr += PAGE_SIZE; | ||
167 | } | ||
168 | } | ||
169 | else | ||
170 | paddr += 16; | ||
171 | } | ||
172 | break; | ||
173 | |||
174 | default: | ||
175 | case FLUSH_SCOPE_PAGE: | ||
176 | len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); | ||
177 | for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) | ||
178 | { | ||
179 | if (!(paddr = virt_to_phys_040(addr))) | ||
180 | continue; | ||
181 | switch (cache) | ||
182 | { | ||
183 | case FLUSH_CACHE_DATA: | ||
184 | __asm__ __volatile__ ("nop\n\t" | ||
185 | ".chip 68040\n\t" | ||
186 | "cpushp %%dc,(%0)\n\t" | ||
187 | ".chip 68k" | ||
188 | : : "a" (paddr)); | ||
189 | break; | ||
190 | case FLUSH_CACHE_INSN: | ||
191 | __asm__ __volatile__ ("nop\n\t" | ||
192 | ".chip 68040\n\t" | ||
193 | "cpushp %%ic,(%0)\n\t" | ||
194 | ".chip 68k" | ||
195 | : : "a" (paddr)); | ||
196 | break; | ||
197 | default: | ||
198 | case FLUSH_CACHE_BOTH: | ||
199 | __asm__ __volatile__ ("nop\n\t" | ||
200 | ".chip 68040\n\t" | ||
201 | "cpushp %%bc,(%0)\n\t" | ||
202 | ".chip 68k" | ||
203 | : : "a" (paddr)); | ||
204 | break; | ||
205 | } | ||
206 | } | ||
207 | break; | ||
208 | } | ||
209 | return 0; | ||
210 | } | ||
211 | |||
212 | #define virt_to_phys_060(vaddr) \ | ||
213 | ({ \ | ||
214 | unsigned long paddr; \ | ||
215 | __asm__ __volatile__ (".chip 68060\n\t" \ | ||
216 | "plpar (%0)\n\t" \ | ||
217 | ".chip 68k" \ | ||
218 | : "=a" (paddr) \ | ||
219 | : "0" (vaddr)); \ | ||
220 | (paddr); /* XXX */ \ | ||
221 | }) | ||
222 | |||
223 | static inline int | ||
224 | cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len) | ||
225 | { | ||
226 | unsigned long paddr, i; | ||
227 | |||
228 | /* | ||
229 | * 68060 manual says: | ||
230 | * cpush %dc : flush DC, remains valid (with our %cacr setup) | ||
231 | * cpush %ic : invalidate IC | ||
232 | * cpush %bc : flush DC + invalidate IC | ||
233 | */ | ||
234 | switch (scope) | ||
235 | { | ||
236 | case FLUSH_SCOPE_ALL: | ||
237 | switch (cache) | ||
238 | { | ||
239 | case FLUSH_CACHE_DATA: | ||
240 | __asm__ __volatile__ (".chip 68060\n\t" | ||
241 | "cpusha %dc\n\t" | ||
242 | ".chip 68k"); | ||
243 | break; | ||
244 | case FLUSH_CACHE_INSN: | ||
245 | __asm__ __volatile__ (".chip 68060\n\t" | ||
246 | "cpusha %ic\n\t" | ||
247 | ".chip 68k"); | ||
248 | break; | ||
249 | default: | ||
250 | case FLUSH_CACHE_BOTH: | ||
251 | __asm__ __volatile__ (".chip 68060\n\t" | ||
252 | "cpusha %bc\n\t" | ||
253 | ".chip 68k"); | ||
254 | break; | ||
255 | } | ||
256 | break; | ||
257 | |||
258 | case FLUSH_SCOPE_LINE: | ||
259 | /* Find the physical address of the first mapped page in the | ||
260 | address range. */ | ||
261 | len += addr & 15; | ||
262 | addr &= -16; | ||
263 | if (!(paddr = virt_to_phys_060(addr))) { | ||
264 | unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); | ||
265 | |||
266 | if (len <= tmp) | ||
267 | return 0; | ||
268 | addr += tmp; | ||
269 | len -= tmp; | ||
270 | tmp = PAGE_SIZE; | ||
271 | for (;;) | ||
272 | { | ||
273 | if ((paddr = virt_to_phys_060(addr))) | ||
274 | break; | ||
275 | if (len <= tmp) | ||
276 | return 0; | ||
277 | addr += tmp; | ||
278 | len -= tmp; | ||
279 | } | ||
280 | } | ||
281 | len = (len + 15) >> 4; | ||
282 | i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; | ||
283 | while (len--) | ||
284 | { | ||
285 | switch (cache) | ||
286 | { | ||
287 | case FLUSH_CACHE_DATA: | ||
288 | __asm__ __volatile__ (".chip 68060\n\t" | ||
289 | "cpushl %%dc,(%0)\n\t" | ||
290 | ".chip 68k" | ||
291 | : : "a" (paddr)); | ||
292 | break; | ||
293 | case FLUSH_CACHE_INSN: | ||
294 | __asm__ __volatile__ (".chip 68060\n\t" | ||
295 | "cpushl %%ic,(%0)\n\t" | ||
296 | ".chip 68k" | ||
297 | : : "a" (paddr)); | ||
298 | break; | ||
299 | default: | ||
300 | case FLUSH_CACHE_BOTH: | ||
301 | __asm__ __volatile__ (".chip 68060\n\t" | ||
302 | "cpushl %%bc,(%0)\n\t" | ||
303 | ".chip 68k" | ||
304 | : : "a" (paddr)); | ||
305 | break; | ||
306 | } | ||
307 | if (!--i && len) | ||
308 | { | ||
309 | |||
310 | /* | ||
311 | * We just want to jump to the first cache line | ||
312 | * in the next page. | ||
313 | */ | ||
314 | addr += PAGE_SIZE; | ||
315 | addr &= PAGE_MASK; | ||
316 | |||
317 | i = PAGE_SIZE / 16; | ||
318 | /* Recompute physical address when crossing a page | ||
319 | boundary. */ | ||
320 | for (;;) | ||
321 | { | ||
322 | if ((paddr = virt_to_phys_060(addr))) | ||
323 | break; | ||
324 | if (len <= i) | ||
325 | return 0; | ||
326 | len -= i; | ||
327 | addr += PAGE_SIZE; | ||
328 | } | ||
329 | } | ||
330 | else | ||
331 | paddr += 16; | ||
332 | } | ||
333 | break; | ||
334 | |||
335 | default: | ||
336 | case FLUSH_SCOPE_PAGE: | ||
337 | len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); | ||
338 | addr &= PAGE_MASK; /* Workaround for bug in some | ||
339 | revisions of the 68060 */ | ||
340 | for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) | ||
341 | { | ||
342 | if (!(paddr = virt_to_phys_060(addr))) | ||
343 | continue; | ||
344 | switch (cache) | ||
345 | { | ||
346 | case FLUSH_CACHE_DATA: | ||
347 | __asm__ __volatile__ (".chip 68060\n\t" | ||
348 | "cpushp %%dc,(%0)\n\t" | ||
349 | ".chip 68k" | ||
350 | : : "a" (paddr)); | ||
351 | break; | ||
352 | case FLUSH_CACHE_INSN: | ||
353 | __asm__ __volatile__ (".chip 68060\n\t" | ||
354 | "cpushp %%ic,(%0)\n\t" | ||
355 | ".chip 68k" | ||
356 | : : "a" (paddr)); | ||
357 | break; | ||
358 | default: | ||
359 | case FLUSH_CACHE_BOTH: | ||
360 | __asm__ __volatile__ (".chip 68060\n\t" | ||
361 | "cpushp %%bc,(%0)\n\t" | ||
362 | ".chip 68k" | ||
363 | : : "a" (paddr)); | ||
364 | break; | ||
365 | } | ||
366 | } | ||
367 | break; | ||
368 | } | ||
369 | return 0; | ||
370 | } | ||
371 | |||
372 | /* sys_cacheflush -- flush (part of) the processor cache. */ | ||
373 | asmlinkage int | ||
374 | sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) | ||
375 | { | ||
376 | struct vm_area_struct *vma; | ||
377 | int ret = -EINVAL; | ||
378 | |||
379 | if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL || | ||
380 | cache & ~FLUSH_CACHE_BOTH) | ||
381 | goto out; | ||
382 | |||
383 | if (scope == FLUSH_SCOPE_ALL) { | ||
384 | /* Only the superuser may explicitly flush the whole cache. */ | ||
385 | ret = -EPERM; | ||
386 | if (!capable(CAP_SYS_ADMIN)) | ||
387 | goto out; | ||
388 | } else { | ||
389 | /* | ||
390 | * Verify that the specified address region actually belongs | ||
391 | * to this process. | ||
392 | */ | ||
393 | vma = find_vma (current->mm, addr); | ||
394 | ret = -EINVAL; | ||
395 | /* Check for overflow. */ | ||
396 | if (addr + len < addr) | ||
397 | goto out; | ||
398 | if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end) | ||
399 | goto out; | ||
400 | } | ||
401 | |||
402 | if (CPU_IS_020_OR_030) { | ||
403 | if (scope == FLUSH_SCOPE_LINE && len < 256) { | ||
404 | unsigned long cacr; | ||
405 | __asm__ ("movec %%cacr, %0" : "=r" (cacr)); | ||
406 | if (cache & FLUSH_CACHE_INSN) | ||
407 | cacr |= 4; | ||
408 | if (cache & FLUSH_CACHE_DATA) | ||
409 | cacr |= 0x400; | ||
410 | len >>= 2; | ||
411 | while (len--) { | ||
412 | __asm__ __volatile__ ("movec %1, %%caar\n\t" | ||
413 | "movec %0, %%cacr" | ||
414 | : /* no outputs */ | ||
415 | : "r" (cacr), "r" (addr)); | ||
416 | addr += 4; | ||
417 | } | ||
418 | } else { | ||
419 | /* Flush the whole cache, even if page granularity requested. */ | ||
420 | unsigned long cacr; | ||
421 | __asm__ ("movec %%cacr, %0" : "=r" (cacr)); | ||
422 | if (cache & FLUSH_CACHE_INSN) | ||
423 | cacr |= 8; | ||
424 | if (cache & FLUSH_CACHE_DATA) | ||
425 | cacr |= 0x800; | ||
426 | __asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr)); | ||
427 | } | ||
428 | ret = 0; | ||
429 | goto out; | ||
430 | } else { | ||
431 | /* | ||
432 | * 040 or 060: don't blindly trust 'scope', someone could | ||
433 | * try to flush a few megs of memory. | ||
434 | */ | ||
435 | |||
436 | if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE) | ||
437 | scope=FLUSH_SCOPE_PAGE; | ||
438 | if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL) | ||
439 | scope=FLUSH_SCOPE_ALL; | ||
440 | if (CPU_IS_040) { | ||
441 | ret = cache_flush_040 (addr, scope, cache, len); | ||
442 | } else if (CPU_IS_060) { | ||
443 | ret = cache_flush_060 (addr, scope, cache, len); | ||
444 | } | ||
445 | } | ||
446 | out: | ||
447 | return ret; | ||
448 | } | ||
449 | |||
450 | asmlinkage int sys_getpagesize(void) | ||
451 | { | ||
452 | return PAGE_SIZE; | ||
453 | } | ||
454 | |||
455 | /* | ||
456 | * Do a system call from kernel instead of calling sys_execve so we | ||
457 | * end up with proper pt_regs. | ||
458 | */ | ||
459 | int kernel_execve(const char *filename, | ||
460 | const char *const argv[], | ||
461 | const char *const envp[]) | ||
462 | { | ||
463 | register long __res asm ("%d0") = __NR_execve; | ||
464 | register long __a asm ("%d1") = (long)(filename); | ||
465 | register long __b asm ("%d2") = (long)(argv); | ||
466 | register long __c asm ("%d3") = (long)(envp); | ||
467 | asm volatile ("trap #0" : "+d" (__res) | ||
468 | : "d" (__a), "d" (__b), "d" (__c)); | ||
469 | return __res; | ||
470 | } | ||
471 | |||
472 | asmlinkage unsigned long sys_get_thread_area(void) | ||
473 | { | ||
474 | return current_thread_info()->tp_value; | ||
475 | } | ||
476 | |||
477 | asmlinkage int sys_set_thread_area(unsigned long tp) | ||
478 | { | ||
479 | current_thread_info()->tp_value = tp; | ||
480 | return 0; | ||
481 | } | ||
482 | |||
483 | /* This syscall gets its arguments in A0 (mem), D2 (oldval) and | ||
484 | D1 (newval). */ | ||
485 | asmlinkage int | ||
486 | sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, | ||
487 | unsigned long __user * mem) | ||
488 | { | ||
489 | /* This was borrowed from ARM's implementation. */ | ||
490 | for (;;) { | ||
491 | struct mm_struct *mm = current->mm; | ||
492 | pgd_t *pgd; | ||
493 | pmd_t *pmd; | ||
494 | pte_t *pte; | ||
495 | spinlock_t *ptl; | ||
496 | unsigned long mem_value; | ||
497 | |||
498 | down_read(&mm->mmap_sem); | ||
499 | pgd = pgd_offset(mm, (unsigned long)mem); | ||
500 | if (!pgd_present(*pgd)) | ||
501 | goto bad_access; | ||
502 | pmd = pmd_offset(pgd, (unsigned long)mem); | ||
503 | if (!pmd_present(*pmd)) | ||
504 | goto bad_access; | ||
505 | pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl); | ||
506 | if (!pte_present(*pte) || !pte_dirty(*pte) | ||
507 | || !pte_write(*pte)) { | ||
508 | pte_unmap_unlock(pte, ptl); | ||
509 | goto bad_access; | ||
510 | } | ||
511 | |||
512 | mem_value = *mem; | ||
513 | if (mem_value == oldval) | ||
514 | *mem = newval; | ||
515 | |||
516 | pte_unmap_unlock(pte, ptl); | ||
517 | up_read(&mm->mmap_sem); | ||
518 | return mem_value; | ||
519 | |||
520 | bad_access: | ||
521 | up_read(&mm->mmap_sem); | ||
522 | /* This is not necessarily a bad access, we can get here if | ||
523 | a memory we're trying to write to should be copied-on-write. | ||
524 | Make the kernel do the necessary page stuff, then re-iterate. | ||
525 | Simulate a write access fault to do that. */ | ||
526 | { | ||
527 | /* The first argument of the function corresponds to | ||
528 | D1, which is the first field of struct pt_regs. */ | ||
529 | struct pt_regs *fp = (struct pt_regs *)&newval; | ||
530 | |||
531 | /* '3' is an RMW flag. */ | ||
532 | if (do_page_fault(fp, (unsigned long)mem, 3)) | ||
533 | /* If the do_page_fault() failed, we don't | ||
534 | have anything meaningful to return. | ||
535 | There should be a SIGSEGV pending for | ||
536 | the process. */ | ||
537 | return 0xdeadbeef; | ||
538 | } | ||
539 | } | ||
540 | } | ||
541 | |||
542 | asmlinkage int sys_atomic_barrier(void) | ||
543 | { | ||
544 | /* no code needed for uniprocs */ | ||
545 | return 0; | ||
546 | } | ||
diff --git a/arch/m68k/kernel/sys_m68k_mm.c b/arch/m68k/kernel/sys_m68k_mm.c new file mode 100644 index 000000000000..3db2e7f902aa --- /dev/null +++ b/arch/m68k/kernel/sys_m68k_mm.c | |||
@@ -0,0 +1,546 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/sys_m68k.c | ||
3 | * | ||
4 | * This file contains various random system calls that | ||
5 | * have a non-standard calling sequence on the Linux/m68k | ||
6 | * platform. | ||
7 | */ | ||
8 | |||
9 | #include <linux/capability.h> | ||
10 | #include <linux/errno.h> | ||
11 | #include <linux/sched.h> | ||
12 | #include <linux/mm.h> | ||
13 | #include <linux/fs.h> | ||
14 | #include <linux/smp.h> | ||
15 | #include <linux/sem.h> | ||
16 | #include <linux/msg.h> | ||
17 | #include <linux/shm.h> | ||
18 | #include <linux/stat.h> | ||
19 | #include <linux/syscalls.h> | ||
20 | #include <linux/mman.h> | ||
21 | #include <linux/file.h> | ||
22 | #include <linux/ipc.h> | ||
23 | |||
24 | #include <asm/setup.h> | ||
25 | #include <asm/uaccess.h> | ||
26 | #include <asm/cachectl.h> | ||
27 | #include <asm/traps.h> | ||
28 | #include <asm/page.h> | ||
29 | #include <asm/unistd.h> | ||
30 | #include <linux/elf.h> | ||
31 | #include <asm/tlb.h> | ||
32 | |||
33 | asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, | ||
34 | unsigned long error_code); | ||
35 | |||
36 | asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, | ||
37 | unsigned long prot, unsigned long flags, | ||
38 | unsigned long fd, unsigned long pgoff) | ||
39 | { | ||
40 | /* | ||
41 | * This is wrong for sun3 - there PAGE_SIZE is 8Kb, | ||
42 | * so we need to shift the argument down by 1; m68k mmap64(3) | ||
43 | * (in libc) expects the last argument of mmap2 in 4Kb units. | ||
44 | */ | ||
45 | return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); | ||
46 | } | ||
47 | |||
48 | /* Convert virtual (user) address VADDR to physical address PADDR */ | ||
49 | #define virt_to_phys_040(vaddr) \ | ||
50 | ({ \ | ||
51 | unsigned long _mmusr, _paddr; \ | ||
52 | \ | ||
53 | __asm__ __volatile__ (".chip 68040\n\t" \ | ||
54 | "ptestr (%1)\n\t" \ | ||
55 | "movec %%mmusr,%0\n\t" \ | ||
56 | ".chip 68k" \ | ||
57 | : "=r" (_mmusr) \ | ||
58 | : "a" (vaddr)); \ | ||
59 | _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0; \ | ||
60 | _paddr; \ | ||
61 | }) | ||
62 | |||
63 | static inline int | ||
64 | cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len) | ||
65 | { | ||
66 | unsigned long paddr, i; | ||
67 | |||
68 | switch (scope) | ||
69 | { | ||
70 | case FLUSH_SCOPE_ALL: | ||
71 | switch (cache) | ||
72 | { | ||
73 | case FLUSH_CACHE_DATA: | ||
74 | /* This nop is needed for some broken versions of the 68040. */ | ||
75 | __asm__ __volatile__ ("nop\n\t" | ||
76 | ".chip 68040\n\t" | ||
77 | "cpusha %dc\n\t" | ||
78 | ".chip 68k"); | ||
79 | break; | ||
80 | case FLUSH_CACHE_INSN: | ||
81 | __asm__ __volatile__ ("nop\n\t" | ||
82 | ".chip 68040\n\t" | ||
83 | "cpusha %ic\n\t" | ||
84 | ".chip 68k"); | ||
85 | break; | ||
86 | default: | ||
87 | case FLUSH_CACHE_BOTH: | ||
88 | __asm__ __volatile__ ("nop\n\t" | ||
89 | ".chip 68040\n\t" | ||
90 | "cpusha %bc\n\t" | ||
91 | ".chip 68k"); | ||
92 | break; | ||
93 | } | ||
94 | break; | ||
95 | |||
96 | case FLUSH_SCOPE_LINE: | ||
97 | /* Find the physical address of the first mapped page in the | ||
98 | address range. */ | ||
99 | if ((paddr = virt_to_phys_040(addr))) { | ||
100 | paddr += addr & ~(PAGE_MASK | 15); | ||
101 | len = (len + (addr & 15) + 15) >> 4; | ||
102 | } else { | ||
103 | unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); | ||
104 | |||
105 | if (len <= tmp) | ||
106 | return 0; | ||
107 | addr += tmp; | ||
108 | len -= tmp; | ||
109 | tmp = PAGE_SIZE; | ||
110 | for (;;) | ||
111 | { | ||
112 | if ((paddr = virt_to_phys_040(addr))) | ||
113 | break; | ||
114 | if (len <= tmp) | ||
115 | return 0; | ||
116 | addr += tmp; | ||
117 | len -= tmp; | ||
118 | } | ||
119 | len = (len + 15) >> 4; | ||
120 | } | ||
121 | i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; | ||
122 | while (len--) | ||
123 | { | ||
124 | switch (cache) | ||
125 | { | ||
126 | case FLUSH_CACHE_DATA: | ||
127 | __asm__ __volatile__ ("nop\n\t" | ||
128 | ".chip 68040\n\t" | ||
129 | "cpushl %%dc,(%0)\n\t" | ||
130 | ".chip 68k" | ||
131 | : : "a" (paddr)); | ||
132 | break; | ||
133 | case FLUSH_CACHE_INSN: | ||
134 | __asm__ __volatile__ ("nop\n\t" | ||
135 | ".chip 68040\n\t" | ||
136 | "cpushl %%ic,(%0)\n\t" | ||
137 | ".chip 68k" | ||
138 | : : "a" (paddr)); | ||
139 | break; | ||
140 | default: | ||
141 | case FLUSH_CACHE_BOTH: | ||
142 | __asm__ __volatile__ ("nop\n\t" | ||
143 | ".chip 68040\n\t" | ||
144 | "cpushl %%bc,(%0)\n\t" | ||
145 | ".chip 68k" | ||
146 | : : "a" (paddr)); | ||
147 | break; | ||
148 | } | ||
149 | if (!--i && len) | ||
150 | { | ||
151 | /* | ||
152 | * No need to page align here since it is done by | ||
153 | * virt_to_phys_040(). | ||
154 | */ | ||
155 | addr += PAGE_SIZE; | ||
156 | i = PAGE_SIZE / 16; | ||
157 | /* Recompute physical address when crossing a page | ||
158 | boundary. */ | ||
159 | for (;;) | ||
160 | { | ||
161 | if ((paddr = virt_to_phys_040(addr))) | ||
162 | break; | ||
163 | if (len <= i) | ||
164 | return 0; | ||
165 | len -= i; | ||
166 | addr += PAGE_SIZE; | ||
167 | } | ||
168 | } | ||
169 | else | ||
170 | paddr += 16; | ||
171 | } | ||
172 | break; | ||
173 | |||
174 | default: | ||
175 | case FLUSH_SCOPE_PAGE: | ||
176 | len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); | ||
177 | for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) | ||
178 | { | ||
179 | if (!(paddr = virt_to_phys_040(addr))) | ||
180 | continue; | ||
181 | switch (cache) | ||
182 | { | ||
183 | case FLUSH_CACHE_DATA: | ||
184 | __asm__ __volatile__ ("nop\n\t" | ||
185 | ".chip 68040\n\t" | ||
186 | "cpushp %%dc,(%0)\n\t" | ||
187 | ".chip 68k" | ||
188 | : : "a" (paddr)); | ||
189 | break; | ||
190 | case FLUSH_CACHE_INSN: | ||
191 | __asm__ __volatile__ ("nop\n\t" | ||
192 | ".chip 68040\n\t" | ||
193 | "cpushp %%ic,(%0)\n\t" | ||
194 | ".chip 68k" | ||
195 | : : "a" (paddr)); | ||
196 | break; | ||
197 | default: | ||
198 | case FLUSH_CACHE_BOTH: | ||
199 | __asm__ __volatile__ ("nop\n\t" | ||
200 | ".chip 68040\n\t" | ||
201 | "cpushp %%bc,(%0)\n\t" | ||
202 | ".chip 68k" | ||
203 | : : "a" (paddr)); | ||
204 | break; | ||
205 | } | ||
206 | } | ||
207 | break; | ||
208 | } | ||
209 | return 0; | ||
210 | } | ||
211 | |||
212 | #define virt_to_phys_060(vaddr) \ | ||
213 | ({ \ | ||
214 | unsigned long paddr; \ | ||
215 | __asm__ __volatile__ (".chip 68060\n\t" \ | ||
216 | "plpar (%0)\n\t" \ | ||
217 | ".chip 68k" \ | ||
218 | : "=a" (paddr) \ | ||
219 | : "0" (vaddr)); \ | ||
220 | (paddr); /* XXX */ \ | ||
221 | }) | ||
222 | |||
223 | static inline int | ||
224 | cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len) | ||
225 | { | ||
226 | unsigned long paddr, i; | ||
227 | |||
228 | /* | ||
229 | * 68060 manual says: | ||
230 | * cpush %dc : flush DC, remains valid (with our %cacr setup) | ||
231 | * cpush %ic : invalidate IC | ||
232 | * cpush %bc : flush DC + invalidate IC | ||
233 | */ | ||
234 | switch (scope) | ||
235 | { | ||
236 | case FLUSH_SCOPE_ALL: | ||
237 | switch (cache) | ||
238 | { | ||
239 | case FLUSH_CACHE_DATA: | ||
240 | __asm__ __volatile__ (".chip 68060\n\t" | ||
241 | "cpusha %dc\n\t" | ||
242 | ".chip 68k"); | ||
243 | break; | ||
244 | case FLUSH_CACHE_INSN: | ||
245 | __asm__ __volatile__ (".chip 68060\n\t" | ||
246 | "cpusha %ic\n\t" | ||
247 | ".chip 68k"); | ||
248 | break; | ||
249 | default: | ||
250 | case FLUSH_CACHE_BOTH: | ||
251 | __asm__ __volatile__ (".chip 68060\n\t" | ||
252 | "cpusha %bc\n\t" | ||
253 | ".chip 68k"); | ||
254 | break; | ||
255 | } | ||
256 | break; | ||
257 | |||
258 | case FLUSH_SCOPE_LINE: | ||
259 | /* Find the physical address of the first mapped page in the | ||
260 | address range. */ | ||
261 | len += addr & 15; | ||
262 | addr &= -16; | ||
263 | if (!(paddr = virt_to_phys_060(addr))) { | ||
264 | unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); | ||
265 | |||
266 | if (len <= tmp) | ||
267 | return 0; | ||
268 | addr += tmp; | ||
269 | len -= tmp; | ||
270 | tmp = PAGE_SIZE; | ||
271 | for (;;) | ||
272 | { | ||
273 | if ((paddr = virt_to_phys_060(addr))) | ||
274 | break; | ||
275 | if (len <= tmp) | ||
276 | return 0; | ||
277 | addr += tmp; | ||
278 | len -= tmp; | ||
279 | } | ||
280 | } | ||
281 | len = (len + 15) >> 4; | ||
282 | i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; | ||
283 | while (len--) | ||
284 | { | ||
285 | switch (cache) | ||
286 | { | ||
287 | case FLUSH_CACHE_DATA: | ||
288 | __asm__ __volatile__ (".chip 68060\n\t" | ||
289 | "cpushl %%dc,(%0)\n\t" | ||
290 | ".chip 68k" | ||
291 | : : "a" (paddr)); | ||
292 | break; | ||
293 | case FLUSH_CACHE_INSN: | ||
294 | __asm__ __volatile__ (".chip 68060\n\t" | ||
295 | "cpushl %%ic,(%0)\n\t" | ||
296 | ".chip 68k" | ||
297 | : : "a" (paddr)); | ||
298 | break; | ||
299 | default: | ||
300 | case FLUSH_CACHE_BOTH: | ||
301 | __asm__ __volatile__ (".chip 68060\n\t" | ||
302 | "cpushl %%bc,(%0)\n\t" | ||
303 | ".chip 68k" | ||
304 | : : "a" (paddr)); | ||
305 | break; | ||
306 | } | ||
307 | if (!--i && len) | ||
308 | { | ||
309 | |||
310 | /* | ||
311 | * We just want to jump to the first cache line | ||
312 | * in the next page. | ||
313 | */ | ||
314 | addr += PAGE_SIZE; | ||
315 | addr &= PAGE_MASK; | ||
316 | |||
317 | i = PAGE_SIZE / 16; | ||
318 | /* Recompute physical address when crossing a page | ||
319 | boundary. */ | ||
320 | for (;;) | ||
321 | { | ||
322 | if ((paddr = virt_to_phys_060(addr))) | ||
323 | break; | ||
324 | if (len <= i) | ||
325 | return 0; | ||
326 | len -= i; | ||
327 | addr += PAGE_SIZE; | ||
328 | } | ||
329 | } | ||
330 | else | ||
331 | paddr += 16; | ||
332 | } | ||
333 | break; | ||
334 | |||
335 | default: | ||
336 | case FLUSH_SCOPE_PAGE: | ||
337 | len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); | ||
338 | addr &= PAGE_MASK; /* Workaround for bug in some | ||
339 | revisions of the 68060 */ | ||
340 | for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) | ||
341 | { | ||
342 | if (!(paddr = virt_to_phys_060(addr))) | ||
343 | continue; | ||
344 | switch (cache) | ||
345 | { | ||
346 | case FLUSH_CACHE_DATA: | ||
347 | __asm__ __volatile__ (".chip 68060\n\t" | ||
348 | "cpushp %%dc,(%0)\n\t" | ||
349 | ".chip 68k" | ||
350 | : : "a" (paddr)); | ||
351 | break; | ||
352 | case FLUSH_CACHE_INSN: | ||
353 | __asm__ __volatile__ (".chip 68060\n\t" | ||
354 | "cpushp %%ic,(%0)\n\t" | ||
355 | ".chip 68k" | ||
356 | : : "a" (paddr)); | ||
357 | break; | ||
358 | default: | ||
359 | case FLUSH_CACHE_BOTH: | ||
360 | __asm__ __volatile__ (".chip 68060\n\t" | ||
361 | "cpushp %%bc,(%0)\n\t" | ||
362 | ".chip 68k" | ||
363 | : : "a" (paddr)); | ||
364 | break; | ||
365 | } | ||
366 | } | ||
367 | break; | ||
368 | } | ||
369 | return 0; | ||
370 | } | ||
371 | |||
372 | /* sys_cacheflush -- flush (part of) the processor cache. */ | ||
373 | asmlinkage int | ||
374 | sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) | ||
375 | { | ||
376 | struct vm_area_struct *vma; | ||
377 | int ret = -EINVAL; | ||
378 | |||
379 | if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL || | ||
380 | cache & ~FLUSH_CACHE_BOTH) | ||
381 | goto out; | ||
382 | |||
383 | if (scope == FLUSH_SCOPE_ALL) { | ||
384 | /* Only the superuser may explicitly flush the whole cache. */ | ||
385 | ret = -EPERM; | ||
386 | if (!capable(CAP_SYS_ADMIN)) | ||
387 | goto out; | ||
388 | } else { | ||
389 | /* | ||
390 | * Verify that the specified address region actually belongs | ||
391 | * to this process. | ||
392 | */ | ||
393 | vma = find_vma (current->mm, addr); | ||
394 | ret = -EINVAL; | ||
395 | /* Check for overflow. */ | ||
396 | if (addr + len < addr) | ||
397 | goto out; | ||
398 | if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end) | ||
399 | goto out; | ||
400 | } | ||
401 | |||
402 | if (CPU_IS_020_OR_030) { | ||
403 | if (scope == FLUSH_SCOPE_LINE && len < 256) { | ||
404 | unsigned long cacr; | ||
405 | __asm__ ("movec %%cacr, %0" : "=r" (cacr)); | ||
406 | if (cache & FLUSH_CACHE_INSN) | ||
407 | cacr |= 4; | ||
408 | if (cache & FLUSH_CACHE_DATA) | ||
409 | cacr |= 0x400; | ||
410 | len >>= 2; | ||
411 | while (len--) { | ||
412 | __asm__ __volatile__ ("movec %1, %%caar\n\t" | ||
413 | "movec %0, %%cacr" | ||
414 | : /* no outputs */ | ||
415 | : "r" (cacr), "r" (addr)); | ||
416 | addr += 4; | ||
417 | } | ||
418 | } else { | ||
419 | /* Flush the whole cache, even if page granularity requested. */ | ||
420 | unsigned long cacr; | ||
421 | __asm__ ("movec %%cacr, %0" : "=r" (cacr)); | ||
422 | if (cache & FLUSH_CACHE_INSN) | ||
423 | cacr |= 8; | ||
424 | if (cache & FLUSH_CACHE_DATA) | ||
425 | cacr |= 0x800; | ||
426 | __asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr)); | ||
427 | } | ||
428 | ret = 0; | ||
429 | goto out; | ||
430 | } else { | ||
431 | /* | ||
432 | * 040 or 060: don't blindly trust 'scope', someone could | ||
433 | * try to flush a few megs of memory. | ||
434 | */ | ||
435 | |||
436 | if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE) | ||
437 | scope=FLUSH_SCOPE_PAGE; | ||
438 | if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL) | ||
439 | scope=FLUSH_SCOPE_ALL; | ||
440 | if (CPU_IS_040) { | ||
441 | ret = cache_flush_040 (addr, scope, cache, len); | ||
442 | } else if (CPU_IS_060) { | ||
443 | ret = cache_flush_060 (addr, scope, cache, len); | ||
444 | } | ||
445 | } | ||
446 | out: | ||
447 | return ret; | ||
448 | } | ||
449 | |||
450 | asmlinkage int sys_getpagesize(void) | ||
451 | { | ||
452 | return PAGE_SIZE; | ||
453 | } | ||
454 | |||
455 | /* | ||
456 | * Do a system call from kernel instead of calling sys_execve so we | ||
457 | * end up with proper pt_regs. | ||
458 | */ | ||
459 | int kernel_execve(const char *filename, | ||
460 | const char *const argv[], | ||
461 | const char *const envp[]) | ||
462 | { | ||
463 | register long __res asm ("%d0") = __NR_execve; | ||
464 | register long __a asm ("%d1") = (long)(filename); | ||
465 | register long __b asm ("%d2") = (long)(argv); | ||
466 | register long __c asm ("%d3") = (long)(envp); | ||
467 | asm volatile ("trap #0" : "+d" (__res) | ||
468 | : "d" (__a), "d" (__b), "d" (__c)); | ||
469 | return __res; | ||
470 | } | ||
471 | |||
472 | asmlinkage unsigned long sys_get_thread_area(void) | ||
473 | { | ||
474 | return current_thread_info()->tp_value; | ||
475 | } | ||
476 | |||
477 | asmlinkage int sys_set_thread_area(unsigned long tp) | ||
478 | { | ||
479 | current_thread_info()->tp_value = tp; | ||
480 | return 0; | ||
481 | } | ||
482 | |||
483 | /* This syscall gets its arguments in A0 (mem), D2 (oldval) and | ||
484 | D1 (newval). */ | ||
485 | asmlinkage int | ||
486 | sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, | ||
487 | unsigned long __user * mem) | ||
488 | { | ||
489 | /* This was borrowed from ARM's implementation. */ | ||
490 | for (;;) { | ||
491 | struct mm_struct *mm = current->mm; | ||
492 | pgd_t *pgd; | ||
493 | pmd_t *pmd; | ||
494 | pte_t *pte; | ||
495 | spinlock_t *ptl; | ||
496 | unsigned long mem_value; | ||
497 | |||
498 | down_read(&mm->mmap_sem); | ||
499 | pgd = pgd_offset(mm, (unsigned long)mem); | ||
500 | if (!pgd_present(*pgd)) | ||
501 | goto bad_access; | ||
502 | pmd = pmd_offset(pgd, (unsigned long)mem); | ||
503 | if (!pmd_present(*pmd)) | ||
504 | goto bad_access; | ||
505 | pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl); | ||
506 | if (!pte_present(*pte) || !pte_dirty(*pte) | ||
507 | || !pte_write(*pte)) { | ||
508 | pte_unmap_unlock(pte, ptl); | ||
509 | goto bad_access; | ||
510 | } | ||
511 | |||
512 | mem_value = *mem; | ||
513 | if (mem_value == oldval) | ||
514 | *mem = newval; | ||
515 | |||
516 | pte_unmap_unlock(pte, ptl); | ||
517 | up_read(&mm->mmap_sem); | ||
518 | return mem_value; | ||
519 | |||
520 | bad_access: | ||
521 | up_read(&mm->mmap_sem); | ||
522 | /* This is not necessarily a bad access, we can get here if | ||
523 | a memory we're trying to write to should be copied-on-write. | ||
524 | Make the kernel do the necessary page stuff, then re-iterate. | ||
525 | Simulate a write access fault to do that. */ | ||
526 | { | ||
527 | /* The first argument of the function corresponds to | ||
528 | D1, which is the first field of struct pt_regs. */ | ||
529 | struct pt_regs *fp = (struct pt_regs *)&newval; | ||
530 | |||
531 | /* '3' is an RMW flag. */ | ||
532 | if (do_page_fault(fp, (unsigned long)mem, 3)) | ||
533 | /* If the do_page_fault() failed, we don't | ||
534 | have anything meaningful to return. | ||
535 | There should be a SIGSEGV pending for | ||
536 | the process. */ | ||
537 | return 0xdeadbeef; | ||
538 | } | ||
539 | } | ||
540 | } | ||
541 | |||
542 | asmlinkage int sys_atomic_barrier(void) | ||
543 | { | ||
544 | /* no code needed for uniprocs */ | ||
545 | return 0; | ||
546 | } | ||
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k_no.c index 68488ae47f0a..68488ae47f0a 100644 --- a/arch/m68knommu/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k_no.c | |||
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S index 79b1ed198c07..79b1ed198c07 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68k/kernel/syscalltable.S | |||
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 18b34ee5db3b..a5cf40c26de5 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c | |||
@@ -1,114 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/time.c | 2 | #include "time_mm.c" |
3 | * | 3 | #else |
4 | * Copyright (C) 1991, 1992, 1995 Linus Torvalds | 4 | #include "time_no.c" |
5 | * | 5 | #endif |
6 | * This file contains the m68k-specific time handling details. | ||
7 | * Most of the stuff is located in the machine specific files. | ||
8 | * | ||
9 | * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 | ||
10 | * "A Kernel Model for Precision Timekeeping" by Dave Mills | ||
11 | */ | ||
12 | |||
13 | #include <linux/errno.h> | ||
14 | #include <linux/module.h> | ||
15 | #include <linux/sched.h> | ||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/param.h> | ||
18 | #include <linux/string.h> | ||
19 | #include <linux/mm.h> | ||
20 | #include <linux/rtc.h> | ||
21 | #include <linux/platform_device.h> | ||
22 | |||
23 | #include <asm/machdep.h> | ||
24 | #include <asm/io.h> | ||
25 | #include <asm/irq_regs.h> | ||
26 | |||
27 | #include <linux/time.h> | ||
28 | #include <linux/timex.h> | ||
29 | #include <linux/profile.h> | ||
30 | |||
31 | static inline int set_rtc_mmss(unsigned long nowtime) | ||
32 | { | ||
33 | if (mach_set_clock_mmss) | ||
34 | return mach_set_clock_mmss (nowtime); | ||
35 | return -1; | ||
36 | } | ||
37 | |||
38 | /* | ||
39 | * timer_interrupt() needs to keep up the real-time clock, | ||
40 | * as well as call the "xtime_update()" routine every clocktick | ||
41 | */ | ||
42 | static irqreturn_t timer_interrupt(int irq, void *dummy) | ||
43 | { | ||
44 | xtime_update(1); | ||
45 | update_process_times(user_mode(get_irq_regs())); | ||
46 | profile_tick(CPU_PROFILING); | ||
47 | |||
48 | #ifdef CONFIG_HEARTBEAT | ||
49 | /* use power LED as a heartbeat instead -- much more useful | ||
50 | for debugging -- based on the version for PReP by Cort */ | ||
51 | /* acts like an actual heart beat -- ie thump-thump-pause... */ | ||
52 | if (mach_heartbeat) { | ||
53 | static unsigned cnt = 0, period = 0, dist = 0; | ||
54 | |||
55 | if (cnt == 0 || cnt == dist) | ||
56 | mach_heartbeat( 1 ); | ||
57 | else if (cnt == 7 || cnt == dist+7) | ||
58 | mach_heartbeat( 0 ); | ||
59 | |||
60 | if (++cnt > period) { | ||
61 | cnt = 0; | ||
62 | /* The hyperbolic function below modifies the heartbeat period | ||
63 | * length in dependency of the current (5min) load. It goes | ||
64 | * through the points f(0)=126, f(1)=86, f(5)=51, | ||
65 | * f(inf)->30. */ | ||
66 | period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; | ||
67 | dist = period / 4; | ||
68 | } | ||
69 | } | ||
70 | #endif /* CONFIG_HEARTBEAT */ | ||
71 | return IRQ_HANDLED; | ||
72 | } | ||
73 | |||
74 | void read_persistent_clock(struct timespec *ts) | ||
75 | { | ||
76 | struct rtc_time time; | ||
77 | ts->tv_sec = 0; | ||
78 | ts->tv_nsec = 0; | ||
79 | |||
80 | if (mach_hwclk) { | ||
81 | mach_hwclk(0, &time); | ||
82 | |||
83 | if ((time.tm_year += 1900) < 1970) | ||
84 | time.tm_year += 100; | ||
85 | ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, | ||
86 | time.tm_hour, time.tm_min, time.tm_sec); | ||
87 | } | ||
88 | } | ||
89 | |||
90 | void __init time_init(void) | ||
91 | { | ||
92 | mach_sched_init(timer_interrupt); | ||
93 | } | ||
94 | |||
95 | u32 arch_gettimeoffset(void) | ||
96 | { | ||
97 | return mach_gettimeoffset() * 1000; | ||
98 | } | ||
99 | |||
100 | static int __init rtc_init(void) | ||
101 | { | ||
102 | struct platform_device *pdev; | ||
103 | |||
104 | if (!mach_hwclk) | ||
105 | return -ENODEV; | ||
106 | |||
107 | pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); | ||
108 | if (IS_ERR(pdev)) | ||
109 | return PTR_ERR(pdev); | ||
110 | |||
111 | return 0; | ||
112 | } | ||
113 | |||
114 | module_init(rtc_init); | ||
diff --git a/arch/m68k/kernel/time_mm.c b/arch/m68k/kernel/time_mm.c new file mode 100644 index 000000000000..18b34ee5db3b --- /dev/null +++ b/arch/m68k/kernel/time_mm.c | |||
@@ -0,0 +1,114 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/time.c | ||
3 | * | ||
4 | * Copyright (C) 1991, 1992, 1995 Linus Torvalds | ||
5 | * | ||
6 | * This file contains the m68k-specific time handling details. | ||
7 | * Most of the stuff is located in the machine specific files. | ||
8 | * | ||
9 | * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 | ||
10 | * "A Kernel Model for Precision Timekeeping" by Dave Mills | ||
11 | */ | ||
12 | |||
13 | #include <linux/errno.h> | ||
14 | #include <linux/module.h> | ||
15 | #include <linux/sched.h> | ||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/param.h> | ||
18 | #include <linux/string.h> | ||
19 | #include <linux/mm.h> | ||
20 | #include <linux/rtc.h> | ||
21 | #include <linux/platform_device.h> | ||
22 | |||
23 | #include <asm/machdep.h> | ||
24 | #include <asm/io.h> | ||
25 | #include <asm/irq_regs.h> | ||
26 | |||
27 | #include <linux/time.h> | ||
28 | #include <linux/timex.h> | ||
29 | #include <linux/profile.h> | ||
30 | |||
31 | static inline int set_rtc_mmss(unsigned long nowtime) | ||
32 | { | ||
33 | if (mach_set_clock_mmss) | ||
34 | return mach_set_clock_mmss (nowtime); | ||
35 | return -1; | ||
36 | } | ||
37 | |||
38 | /* | ||
39 | * timer_interrupt() needs to keep up the real-time clock, | ||
40 | * as well as call the "xtime_update()" routine every clocktick | ||
41 | */ | ||
42 | static irqreturn_t timer_interrupt(int irq, void *dummy) | ||
43 | { | ||
44 | xtime_update(1); | ||
45 | update_process_times(user_mode(get_irq_regs())); | ||
46 | profile_tick(CPU_PROFILING); | ||
47 | |||
48 | #ifdef CONFIG_HEARTBEAT | ||
49 | /* use power LED as a heartbeat instead -- much more useful | ||
50 | for debugging -- based on the version for PReP by Cort */ | ||
51 | /* acts like an actual heart beat -- ie thump-thump-pause... */ | ||
52 | if (mach_heartbeat) { | ||
53 | static unsigned cnt = 0, period = 0, dist = 0; | ||
54 | |||
55 | if (cnt == 0 || cnt == dist) | ||
56 | mach_heartbeat( 1 ); | ||
57 | else if (cnt == 7 || cnt == dist+7) | ||
58 | mach_heartbeat( 0 ); | ||
59 | |||
60 | if (++cnt > period) { | ||
61 | cnt = 0; | ||
62 | /* The hyperbolic function below modifies the heartbeat period | ||
63 | * length in dependency of the current (5min) load. It goes | ||
64 | * through the points f(0)=126, f(1)=86, f(5)=51, | ||
65 | * f(inf)->30. */ | ||
66 | period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; | ||
67 | dist = period / 4; | ||
68 | } | ||
69 | } | ||
70 | #endif /* CONFIG_HEARTBEAT */ | ||
71 | return IRQ_HANDLED; | ||
72 | } | ||
73 | |||
74 | void read_persistent_clock(struct timespec *ts) | ||
75 | { | ||
76 | struct rtc_time time; | ||
77 | ts->tv_sec = 0; | ||
78 | ts->tv_nsec = 0; | ||
79 | |||
80 | if (mach_hwclk) { | ||
81 | mach_hwclk(0, &time); | ||
82 | |||
83 | if ((time.tm_year += 1900) < 1970) | ||
84 | time.tm_year += 100; | ||
85 | ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, | ||
86 | time.tm_hour, time.tm_min, time.tm_sec); | ||
87 | } | ||
88 | } | ||
89 | |||
90 | void __init time_init(void) | ||
91 | { | ||
92 | mach_sched_init(timer_interrupt); | ||
93 | } | ||
94 | |||
95 | u32 arch_gettimeoffset(void) | ||
96 | { | ||
97 | return mach_gettimeoffset() * 1000; | ||
98 | } | ||
99 | |||
100 | static int __init rtc_init(void) | ||
101 | { | ||
102 | struct platform_device *pdev; | ||
103 | |||
104 | if (!mach_hwclk) | ||
105 | return -ENODEV; | ||
106 | |||
107 | pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); | ||
108 | if (IS_ERR(pdev)) | ||
109 | return PTR_ERR(pdev); | ||
110 | |||
111 | return 0; | ||
112 | } | ||
113 | |||
114 | module_init(rtc_init); | ||
diff --git a/arch/m68knommu/kernel/time.c b/arch/m68k/kernel/time_no.c index 6623909f70e6..6623909f70e6 100644 --- a/arch/m68knommu/kernel/time.c +++ b/arch/m68k/kernel/time_no.c | |||
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index 4022bbc28878..c98add3f5f0f 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c | |||
@@ -1,1207 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/kernel/traps.c | 2 | #include "traps_mm.c" |
3 | * | ||
4 | * Copyright (C) 1993, 1994 by Hamish Macdonald | ||
5 | * | ||
6 | * 68040 fixes by Michael Rausch | ||
7 | * 68040 fixes by Martin Apel | ||
8 | * 68040 fixes and writeback by Richard Zidlicky | ||
9 | * 68060 fixes by Roman Hodek | ||
10 | * 68060 fixes by Jesper Skov | ||
11 | * | ||
12 | * This file is subject to the terms and conditions of the GNU General Public | ||
13 | * License. See the file COPYING in the main directory of this archive | ||
14 | * for more details. | ||
15 | */ | ||
16 | |||
17 | /* | ||
18 | * Sets up all exception vectors | ||
19 | */ | ||
20 | |||
21 | #include <linux/sched.h> | ||
22 | #include <linux/signal.h> | ||
23 | #include <linux/kernel.h> | ||
24 | #include <linux/mm.h> | ||
25 | #include <linux/module.h> | ||
26 | #include <linux/user.h> | ||
27 | #include <linux/string.h> | ||
28 | #include <linux/linkage.h> | ||
29 | #include <linux/init.h> | ||
30 | #include <linux/ptrace.h> | ||
31 | #include <linux/kallsyms.h> | ||
32 | |||
33 | #include <asm/setup.h> | ||
34 | #include <asm/fpu.h> | ||
35 | #include <asm/system.h> | ||
36 | #include <asm/uaccess.h> | ||
37 | #include <asm/traps.h> | ||
38 | #include <asm/pgalloc.h> | ||
39 | #include <asm/machdep.h> | ||
40 | #include <asm/siginfo.h> | ||
41 | |||
42 | /* assembler routines */ | ||
43 | asmlinkage void system_call(void); | ||
44 | asmlinkage void buserr(void); | ||
45 | asmlinkage void trap(void); | ||
46 | asmlinkage void nmihandler(void); | ||
47 | #ifdef CONFIG_M68KFPU_EMU | ||
48 | asmlinkage void fpu_emu(void); | ||
49 | #endif | ||
50 | |||
51 | e_vector vectors[256]; | ||
52 | |||
53 | /* nmi handler for the Amiga */ | ||
54 | asm(".text\n" | ||
55 | __ALIGN_STR "\n" | ||
56 | "nmihandler: rte"); | ||
57 | |||
58 | /* | ||
59 | * this must be called very early as the kernel might | ||
60 | * use some instruction that are emulated on the 060 | ||
61 | * and so we're prepared for early probe attempts (e.g. nf_init). | ||
62 | */ | ||
63 | void __init base_trap_init(void) | ||
64 | { | ||
65 | if (MACH_IS_SUN3X) { | ||
66 | extern e_vector *sun3x_prom_vbr; | ||
67 | |||
68 | __asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr)); | ||
69 | } | ||
70 | |||
71 | /* setup the exception vector table */ | ||
72 | __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); | ||
73 | |||
74 | if (CPU_IS_060) { | ||
75 | /* set up ISP entry points */ | ||
76 | asmlinkage void unimp_vec(void) asm ("_060_isp_unimp"); | ||
77 | |||
78 | vectors[VEC_UNIMPII] = unimp_vec; | ||
79 | } | ||
80 | |||
81 | vectors[VEC_BUSERR] = buserr; | ||
82 | vectors[VEC_ILLEGAL] = trap; | ||
83 | vectors[VEC_SYS] = system_call; | ||
84 | } | ||
85 | |||
86 | void __init trap_init (void) | ||
87 | { | ||
88 | int i; | ||
89 | |||
90 | for (i = VEC_SPUR; i <= VEC_INT7; i++) | ||
91 | vectors[i] = bad_inthandler; | ||
92 | |||
93 | for (i = 0; i < VEC_USER; i++) | ||
94 | if (!vectors[i]) | ||
95 | vectors[i] = trap; | ||
96 | |||
97 | for (i = VEC_USER; i < 256; i++) | ||
98 | vectors[i] = bad_inthandler; | ||
99 | |||
100 | #ifdef CONFIG_M68KFPU_EMU | ||
101 | if (FPU_IS_EMU) | ||
102 | vectors[VEC_LINE11] = fpu_emu; | ||
103 | #endif | ||
104 | |||
105 | if (CPU_IS_040 && !FPU_IS_EMU) { | ||
106 | /* set up FPSP entry points */ | ||
107 | asmlinkage void dz_vec(void) asm ("dz"); | ||
108 | asmlinkage void inex_vec(void) asm ("inex"); | ||
109 | asmlinkage void ovfl_vec(void) asm ("ovfl"); | ||
110 | asmlinkage void unfl_vec(void) asm ("unfl"); | ||
111 | asmlinkage void snan_vec(void) asm ("snan"); | ||
112 | asmlinkage void operr_vec(void) asm ("operr"); | ||
113 | asmlinkage void bsun_vec(void) asm ("bsun"); | ||
114 | asmlinkage void fline_vec(void) asm ("fline"); | ||
115 | asmlinkage void unsupp_vec(void) asm ("unsupp"); | ||
116 | |||
117 | vectors[VEC_FPDIVZ] = dz_vec; | ||
118 | vectors[VEC_FPIR] = inex_vec; | ||
119 | vectors[VEC_FPOVER] = ovfl_vec; | ||
120 | vectors[VEC_FPUNDER] = unfl_vec; | ||
121 | vectors[VEC_FPNAN] = snan_vec; | ||
122 | vectors[VEC_FPOE] = operr_vec; | ||
123 | vectors[VEC_FPBRUC] = bsun_vec; | ||
124 | vectors[VEC_LINE11] = fline_vec; | ||
125 | vectors[VEC_FPUNSUP] = unsupp_vec; | ||
126 | } | ||
127 | |||
128 | if (CPU_IS_060 && !FPU_IS_EMU) { | ||
129 | /* set up IFPSP entry points */ | ||
130 | asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan"); | ||
131 | asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr"); | ||
132 | asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl"); | ||
133 | asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl"); | ||
134 | asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz"); | ||
135 | asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex"); | ||
136 | asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline"); | ||
137 | asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp"); | ||
138 | asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd"); | ||
139 | |||
140 | vectors[VEC_FPNAN] = snan_vec6; | ||
141 | vectors[VEC_FPOE] = operr_vec6; | ||
142 | vectors[VEC_FPOVER] = ovfl_vec6; | ||
143 | vectors[VEC_FPUNDER] = unfl_vec6; | ||
144 | vectors[VEC_FPDIVZ] = dz_vec6; | ||
145 | vectors[VEC_FPIR] = inex_vec6; | ||
146 | vectors[VEC_LINE11] = fline_vec6; | ||
147 | vectors[VEC_FPUNSUP] = unsupp_vec6; | ||
148 | vectors[VEC_UNIMPEA] = effadd_vec6; | ||
149 | } | ||
150 | |||
151 | /* if running on an amiga, make the NMI interrupt do nothing */ | ||
152 | if (MACH_IS_AMIGA) { | ||
153 | vectors[VEC_INT7] = nmihandler; | ||
154 | } | ||
155 | } | ||
156 | |||
157 | |||
158 | static const char *vec_names[] = { | ||
159 | [VEC_RESETSP] = "RESET SP", | ||
160 | [VEC_RESETPC] = "RESET PC", | ||
161 | [VEC_BUSERR] = "BUS ERROR", | ||
162 | [VEC_ADDRERR] = "ADDRESS ERROR", | ||
163 | [VEC_ILLEGAL] = "ILLEGAL INSTRUCTION", | ||
164 | [VEC_ZERODIV] = "ZERO DIVIDE", | ||
165 | [VEC_CHK] = "CHK", | ||
166 | [VEC_TRAP] = "TRAPcc", | ||
167 | [VEC_PRIV] = "PRIVILEGE VIOLATION", | ||
168 | [VEC_TRACE] = "TRACE", | ||
169 | [VEC_LINE10] = "LINE 1010", | ||
170 | [VEC_LINE11] = "LINE 1111", | ||
171 | [VEC_RESV12] = "UNASSIGNED RESERVED 12", | ||
172 | [VEC_COPROC] = "COPROCESSOR PROTOCOL VIOLATION", | ||
173 | [VEC_FORMAT] = "FORMAT ERROR", | ||
174 | [VEC_UNINT] = "UNINITIALIZED INTERRUPT", | ||
175 | [VEC_RESV16] = "UNASSIGNED RESERVED 16", | ||
176 | [VEC_RESV17] = "UNASSIGNED RESERVED 17", | ||
177 | [VEC_RESV18] = "UNASSIGNED RESERVED 18", | ||
178 | [VEC_RESV19] = "UNASSIGNED RESERVED 19", | ||
179 | [VEC_RESV20] = "UNASSIGNED RESERVED 20", | ||
180 | [VEC_RESV21] = "UNASSIGNED RESERVED 21", | ||
181 | [VEC_RESV22] = "UNASSIGNED RESERVED 22", | ||
182 | [VEC_RESV23] = "UNASSIGNED RESERVED 23", | ||
183 | [VEC_SPUR] = "SPURIOUS INTERRUPT", | ||
184 | [VEC_INT1] = "LEVEL 1 INT", | ||
185 | [VEC_INT2] = "LEVEL 2 INT", | ||
186 | [VEC_INT3] = "LEVEL 3 INT", | ||
187 | [VEC_INT4] = "LEVEL 4 INT", | ||
188 | [VEC_INT5] = "LEVEL 5 INT", | ||
189 | [VEC_INT6] = "LEVEL 6 INT", | ||
190 | [VEC_INT7] = "LEVEL 7 INT", | ||
191 | [VEC_SYS] = "SYSCALL", | ||
192 | [VEC_TRAP1] = "TRAP #1", | ||
193 | [VEC_TRAP2] = "TRAP #2", | ||
194 | [VEC_TRAP3] = "TRAP #3", | ||
195 | [VEC_TRAP4] = "TRAP #4", | ||
196 | [VEC_TRAP5] = "TRAP #5", | ||
197 | [VEC_TRAP6] = "TRAP #6", | ||
198 | [VEC_TRAP7] = "TRAP #7", | ||
199 | [VEC_TRAP8] = "TRAP #8", | ||
200 | [VEC_TRAP9] = "TRAP #9", | ||
201 | [VEC_TRAP10] = "TRAP #10", | ||
202 | [VEC_TRAP11] = "TRAP #11", | ||
203 | [VEC_TRAP12] = "TRAP #12", | ||
204 | [VEC_TRAP13] = "TRAP #13", | ||
205 | [VEC_TRAP14] = "TRAP #14", | ||
206 | [VEC_TRAP15] = "TRAP #15", | ||
207 | [VEC_FPBRUC] = "FPCP BSUN", | ||
208 | [VEC_FPIR] = "FPCP INEXACT", | ||
209 | [VEC_FPDIVZ] = "FPCP DIV BY 0", | ||
210 | [VEC_FPUNDER] = "FPCP UNDERFLOW", | ||
211 | [VEC_FPOE] = "FPCP OPERAND ERROR", | ||
212 | [VEC_FPOVER] = "FPCP OVERFLOW", | ||
213 | [VEC_FPNAN] = "FPCP SNAN", | ||
214 | [VEC_FPUNSUP] = "FPCP UNSUPPORTED OPERATION", | ||
215 | [VEC_MMUCFG] = "MMU CONFIGURATION ERROR", | ||
216 | [VEC_MMUILL] = "MMU ILLEGAL OPERATION ERROR", | ||
217 | [VEC_MMUACC] = "MMU ACCESS LEVEL VIOLATION ERROR", | ||
218 | [VEC_RESV59] = "UNASSIGNED RESERVED 59", | ||
219 | [VEC_UNIMPEA] = "UNASSIGNED RESERVED 60", | ||
220 | [VEC_UNIMPII] = "UNASSIGNED RESERVED 61", | ||
221 | [VEC_RESV62] = "UNASSIGNED RESERVED 62", | ||
222 | [VEC_RESV63] = "UNASSIGNED RESERVED 63", | ||
223 | }; | ||
224 | |||
225 | static const char *space_names[] = { | ||
226 | [0] = "Space 0", | ||
227 | [USER_DATA] = "User Data", | ||
228 | [USER_PROGRAM] = "User Program", | ||
229 | #ifndef CONFIG_SUN3 | ||
230 | [3] = "Space 3", | ||
231 | #else | 3 | #else |
232 | [FC_CONTROL] = "Control", | 4 | #include "traps_no.c" |
233 | #endif | ||
234 | [4] = "Space 4", | ||
235 | [SUPER_DATA] = "Super Data", | ||
236 | [SUPER_PROGRAM] = "Super Program", | ||
237 | [CPU_SPACE] = "CPU" | ||
238 | }; | ||
239 | |||
240 | void die_if_kernel(char *,struct pt_regs *,int); | ||
241 | asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, | ||
242 | unsigned long error_code); | ||
243 | int send_fault_sig(struct pt_regs *regs); | ||
244 | |||
245 | asmlinkage void trap_c(struct frame *fp); | ||
246 | |||
247 | #if defined (CONFIG_M68060) | ||
248 | static inline void access_error060 (struct frame *fp) | ||
249 | { | ||
250 | unsigned long fslw = fp->un.fmt4.pc; /* is really FSLW for access error */ | ||
251 | |||
252 | #ifdef DEBUG | ||
253 | printk("fslw=%#lx, fa=%#lx\n", fslw, fp->un.fmt4.effaddr); | ||
254 | #endif | ||
255 | |||
256 | if (fslw & MMU060_BPE) { | ||
257 | /* branch prediction error -> clear branch cache */ | ||
258 | __asm__ __volatile__ ("movec %/cacr,%/d0\n\t" | ||
259 | "orl #0x00400000,%/d0\n\t" | ||
260 | "movec %/d0,%/cacr" | ||
261 | : : : "d0" ); | ||
262 | /* return if there's no other error */ | ||
263 | if (!(fslw & MMU060_ERR_BITS) && !(fslw & MMU060_SEE)) | ||
264 | return; | ||
265 | } | ||
266 | |||
267 | if (fslw & (MMU060_DESC_ERR | MMU060_WP | MMU060_SP)) { | ||
268 | unsigned long errorcode; | ||
269 | unsigned long addr = fp->un.fmt4.effaddr; | ||
270 | |||
271 | if (fslw & MMU060_MA) | ||
272 | addr = (addr + PAGE_SIZE - 1) & PAGE_MASK; | ||
273 | |||
274 | errorcode = 1; | ||
275 | if (fslw & MMU060_DESC_ERR) { | ||
276 | __flush_tlb040_one(addr); | ||
277 | errorcode = 0; | ||
278 | } | ||
279 | if (fslw & MMU060_W) | ||
280 | errorcode |= 2; | ||
281 | #ifdef DEBUG | ||
282 | printk("errorcode = %d\n", errorcode ); | ||
283 | #endif | ||
284 | do_page_fault(&fp->ptregs, addr, errorcode); | ||
285 | } else if (fslw & (MMU060_SEE)){ | ||
286 | /* Software Emulation Error. | ||
287 | * fault during mem_read/mem_write in ifpsp060/os.S | ||
288 | */ | ||
289 | send_fault_sig(&fp->ptregs); | ||
290 | } else if (!(fslw & (MMU060_RE|MMU060_WE)) || | ||
291 | send_fault_sig(&fp->ptregs) > 0) { | ||
292 | printk("pc=%#lx, fa=%#lx\n", fp->ptregs.pc, fp->un.fmt4.effaddr); | ||
293 | printk( "68060 access error, fslw=%lx\n", fslw ); | ||
294 | trap_c( fp ); | ||
295 | } | ||
296 | } | ||
297 | #endif /* CONFIG_M68060 */ | ||
298 | |||
299 | #if defined (CONFIG_M68040) | ||
300 | static inline unsigned long probe040(int iswrite, unsigned long addr, int wbs) | ||
301 | { | ||
302 | unsigned long mmusr; | ||
303 | mm_segment_t old_fs = get_fs(); | ||
304 | |||
305 | set_fs(MAKE_MM_SEG(wbs)); | ||
306 | |||
307 | if (iswrite) | ||
308 | asm volatile (".chip 68040; ptestw (%0); .chip 68k" : : "a" (addr)); | ||
309 | else | ||
310 | asm volatile (".chip 68040; ptestr (%0); .chip 68k" : : "a" (addr)); | ||
311 | |||
312 | asm volatile (".chip 68040; movec %%mmusr,%0; .chip 68k" : "=r" (mmusr)); | ||
313 | |||
314 | set_fs(old_fs); | ||
315 | |||
316 | return mmusr; | ||
317 | } | ||
318 | |||
319 | static inline int do_040writeback1(unsigned short wbs, unsigned long wba, | ||
320 | unsigned long wbd) | ||
321 | { | ||
322 | int res = 0; | ||
323 | mm_segment_t old_fs = get_fs(); | ||
324 | |||
325 | /* set_fs can not be moved, otherwise put_user() may oops */ | ||
326 | set_fs(MAKE_MM_SEG(wbs)); | ||
327 | |||
328 | switch (wbs & WBSIZ_040) { | ||
329 | case BA_SIZE_BYTE: | ||
330 | res = put_user(wbd & 0xff, (char __user *)wba); | ||
331 | break; | ||
332 | case BA_SIZE_WORD: | ||
333 | res = put_user(wbd & 0xffff, (short __user *)wba); | ||
334 | break; | ||
335 | case BA_SIZE_LONG: | ||
336 | res = put_user(wbd, (int __user *)wba); | ||
337 | break; | ||
338 | } | ||
339 | |||
340 | /* set_fs can not be moved, otherwise put_user() may oops */ | ||
341 | set_fs(old_fs); | ||
342 | |||
343 | |||
344 | #ifdef DEBUG | ||
345 | printk("do_040writeback1, res=%d\n",res); | ||
346 | #endif | ||
347 | |||
348 | return res; | ||
349 | } | ||
350 | |||
351 | /* after an exception in a writeback the stack frame corresponding | ||
352 | * to that exception is discarded, set a few bits in the old frame | ||
353 | * to simulate what it should look like | ||
354 | */ | ||
355 | static inline void fix_xframe040(struct frame *fp, unsigned long wba, unsigned short wbs) | ||
356 | { | ||
357 | fp->un.fmt7.faddr = wba; | ||
358 | fp->un.fmt7.ssw = wbs & 0xff; | ||
359 | if (wba != current->thread.faddr) | ||
360 | fp->un.fmt7.ssw |= MA_040; | ||
361 | } | ||
362 | |||
363 | static inline void do_040writebacks(struct frame *fp) | ||
364 | { | ||
365 | int res = 0; | ||
366 | #if 0 | ||
367 | if (fp->un.fmt7.wb1s & WBV_040) | ||
368 | printk("access_error040: cannot handle 1st writeback. oops.\n"); | ||
369 | #endif | ||
370 | |||
371 | if ((fp->un.fmt7.wb2s & WBV_040) && | ||
372 | !(fp->un.fmt7.wb2s & WBTT_040)) { | ||
373 | res = do_040writeback1(fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, | ||
374 | fp->un.fmt7.wb2d); | ||
375 | if (res) | ||
376 | fix_xframe040(fp, fp->un.fmt7.wb2a, fp->un.fmt7.wb2s); | ||
377 | else | ||
378 | fp->un.fmt7.wb2s = 0; | ||
379 | } | ||
380 | |||
381 | /* do the 2nd wb only if the first one was successful (except for a kernel wb) */ | ||
382 | if (fp->un.fmt7.wb3s & WBV_040 && (!res || fp->un.fmt7.wb3s & 4)) { | ||
383 | res = do_040writeback1(fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, | ||
384 | fp->un.fmt7.wb3d); | ||
385 | if (res) | ||
386 | { | ||
387 | fix_xframe040(fp, fp->un.fmt7.wb3a, fp->un.fmt7.wb3s); | ||
388 | |||
389 | fp->un.fmt7.wb2s = fp->un.fmt7.wb3s; | ||
390 | fp->un.fmt7.wb3s &= (~WBV_040); | ||
391 | fp->un.fmt7.wb2a = fp->un.fmt7.wb3a; | ||
392 | fp->un.fmt7.wb2d = fp->un.fmt7.wb3d; | ||
393 | } | ||
394 | else | ||
395 | fp->un.fmt7.wb3s = 0; | ||
396 | } | ||
397 | |||
398 | if (res) | ||
399 | send_fault_sig(&fp->ptregs); | ||
400 | } | ||
401 | |||
402 | /* | ||
403 | * called from sigreturn(), must ensure userspace code didn't | ||
404 | * manipulate exception frame to circumvent protection, then complete | ||
405 | * pending writebacks | ||
406 | * we just clear TM2 to turn it into a userspace access | ||
407 | */ | ||
408 | asmlinkage void berr_040cleanup(struct frame *fp) | ||
409 | { | ||
410 | fp->un.fmt7.wb2s &= ~4; | ||
411 | fp->un.fmt7.wb3s &= ~4; | ||
412 | |||
413 | do_040writebacks(fp); | ||
414 | } | ||
415 | |||
416 | static inline void access_error040(struct frame *fp) | ||
417 | { | ||
418 | unsigned short ssw = fp->un.fmt7.ssw; | ||
419 | unsigned long mmusr; | ||
420 | |||
421 | #ifdef DEBUG | ||
422 | printk("ssw=%#x, fa=%#lx\n", ssw, fp->un.fmt7.faddr); | ||
423 | printk("wb1s=%#x, wb2s=%#x, wb3s=%#x\n", fp->un.fmt7.wb1s, | ||
424 | fp->un.fmt7.wb2s, fp->un.fmt7.wb3s); | ||
425 | printk ("wb2a=%lx, wb3a=%lx, wb2d=%lx, wb3d=%lx\n", | ||
426 | fp->un.fmt7.wb2a, fp->un.fmt7.wb3a, | ||
427 | fp->un.fmt7.wb2d, fp->un.fmt7.wb3d); | ||
428 | #endif | ||
429 | |||
430 | if (ssw & ATC_040) { | ||
431 | unsigned long addr = fp->un.fmt7.faddr; | ||
432 | unsigned long errorcode; | ||
433 | |||
434 | /* | ||
435 | * The MMU status has to be determined AFTER the address | ||
436 | * has been corrected if there was a misaligned access (MA). | ||
437 | */ | ||
438 | if (ssw & MA_040) | ||
439 | addr = (addr + 7) & -8; | ||
440 | |||
441 | /* MMU error, get the MMUSR info for this access */ | ||
442 | mmusr = probe040(!(ssw & RW_040), addr, ssw); | ||
443 | #ifdef DEBUG | ||
444 | printk("mmusr = %lx\n", mmusr); | ||
445 | #endif | ||
446 | errorcode = 1; | ||
447 | if (!(mmusr & MMU_R_040)) { | ||
448 | /* clear the invalid atc entry */ | ||
449 | __flush_tlb040_one(addr); | ||
450 | errorcode = 0; | ||
451 | } | ||
452 | |||
453 | /* despite what documentation seems to say, RMW | ||
454 | * accesses have always both the LK and RW bits set */ | ||
455 | if (!(ssw & RW_040) || (ssw & LK_040)) | ||
456 | errorcode |= 2; | ||
457 | |||
458 | if (do_page_fault(&fp->ptregs, addr, errorcode)) { | ||
459 | #ifdef DEBUG | ||
460 | printk("do_page_fault() !=0\n"); | ||
461 | #endif | ||
462 | if (user_mode(&fp->ptregs)){ | ||
463 | /* delay writebacks after signal delivery */ | ||
464 | #ifdef DEBUG | ||
465 | printk(".. was usermode - return\n"); | ||
466 | #endif | ||
467 | return; | ||
468 | } | ||
469 | /* disable writeback into user space from kernel | ||
470 | * (if do_page_fault didn't fix the mapping, | ||
471 | * the writeback won't do good) | ||
472 | */ | ||
473 | disable_wb: | ||
474 | #ifdef DEBUG | ||
475 | printk(".. disabling wb2\n"); | ||
476 | #endif | ||
477 | if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr) | ||
478 | fp->un.fmt7.wb2s &= ~WBV_040; | ||
479 | if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr) | ||
480 | fp->un.fmt7.wb3s &= ~WBV_040; | ||
481 | } | ||
482 | } else { | ||
483 | /* In case of a bus error we either kill the process or expect | ||
484 | * the kernel to catch the fault, which then is also responsible | ||
485 | * for cleaning up the mess. | ||
486 | */ | ||
487 | current->thread.signo = SIGBUS; | ||
488 | current->thread.faddr = fp->un.fmt7.faddr; | ||
489 | if (send_fault_sig(&fp->ptregs) >= 0) | ||
490 | printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw, | ||
491 | fp->un.fmt7.faddr); | ||
492 | goto disable_wb; | ||
493 | } | ||
494 | |||
495 | do_040writebacks(fp); | ||
496 | } | ||
497 | #endif /* CONFIG_M68040 */ | ||
498 | |||
499 | #if defined(CONFIG_SUN3) | ||
500 | #include <asm/sun3mmu.h> | ||
501 | |||
502 | extern int mmu_emu_handle_fault (unsigned long, int, int); | ||
503 | |||
504 | /* sun3 version of bus_error030 */ | ||
505 | |||
506 | static inline void bus_error030 (struct frame *fp) | ||
507 | { | ||
508 | unsigned char buserr_type = sun3_get_buserr (); | ||
509 | unsigned long addr, errorcode; | ||
510 | unsigned short ssw = fp->un.fmtb.ssw; | ||
511 | extern unsigned long _sun3_map_test_start, _sun3_map_test_end; | ||
512 | |||
513 | #ifdef DEBUG | ||
514 | if (ssw & (FC | FB)) | ||
515 | printk ("Instruction fault at %#010lx\n", | ||
516 | ssw & FC ? | ||
517 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 | ||
518 | : | ||
519 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); | ||
520 | if (ssw & DF) | ||
521 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
522 | ssw & RW ? "read" : "write", | ||
523 | fp->un.fmtb.daddr, | ||
524 | space_names[ssw & DFC], fp->ptregs.pc); | ||
525 | #endif | ||
526 | |||
527 | /* | ||
528 | * Check if this page should be demand-mapped. This needs to go before | ||
529 | * the testing for a bad kernel-space access (demand-mapping applies | ||
530 | * to kernel accesses too). | ||
531 | */ | ||
532 | |||
533 | if ((ssw & DF) | ||
534 | && (buserr_type & (SUN3_BUSERR_PROTERR | SUN3_BUSERR_INVALID))) { | ||
535 | if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 0)) | ||
536 | return; | ||
537 | } | ||
538 | |||
539 | /* Check for kernel-space pagefault (BAD). */ | ||
540 | if (fp->ptregs.sr & PS_S) { | ||
541 | /* kernel fault must be a data fault to user space */ | ||
542 | if (! ((ssw & DF) && ((ssw & DFC) == USER_DATA))) { | ||
543 | // try checking the kernel mappings before surrender | ||
544 | if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 1)) | ||
545 | return; | ||
546 | /* instruction fault or kernel data fault! */ | ||
547 | if (ssw & (FC | FB)) | ||
548 | printk ("Instruction fault at %#010lx\n", | ||
549 | fp->ptregs.pc); | ||
550 | if (ssw & DF) { | ||
551 | /* was this fault incurred testing bus mappings? */ | ||
552 | if((fp->ptregs.pc >= (unsigned long)&_sun3_map_test_start) && | ||
553 | (fp->ptregs.pc <= (unsigned long)&_sun3_map_test_end)) { | ||
554 | send_fault_sig(&fp->ptregs); | ||
555 | return; | ||
556 | } | ||
557 | |||
558 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
559 | ssw & RW ? "read" : "write", | ||
560 | fp->un.fmtb.daddr, | ||
561 | space_names[ssw & DFC], fp->ptregs.pc); | ||
562 | } | ||
563 | printk ("BAD KERNEL BUSERR\n"); | ||
564 | |||
565 | die_if_kernel("Oops", &fp->ptregs,0); | ||
566 | force_sig(SIGKILL, current); | ||
567 | return; | ||
568 | } | ||
569 | } else { | ||
570 | /* user fault */ | ||
571 | if (!(ssw & (FC | FB)) && !(ssw & DF)) | ||
572 | /* not an instruction fault or data fault! BAD */ | ||
573 | panic ("USER BUSERR w/o instruction or data fault"); | ||
574 | } | ||
575 | |||
576 | |||
577 | /* First handle the data fault, if any. */ | ||
578 | if (ssw & DF) { | ||
579 | addr = fp->un.fmtb.daddr; | ||
580 | |||
581 | // errorcode bit 0: 0 -> no page 1 -> protection fault | ||
582 | // errorcode bit 1: 0 -> read fault 1 -> write fault | ||
583 | |||
584 | // (buserr_type & SUN3_BUSERR_PROTERR) -> protection fault | ||
585 | // (buserr_type & SUN3_BUSERR_INVALID) -> invalid page fault | ||
586 | |||
587 | if (buserr_type & SUN3_BUSERR_PROTERR) | ||
588 | errorcode = 0x01; | ||
589 | else if (buserr_type & SUN3_BUSERR_INVALID) | ||
590 | errorcode = 0x00; | ||
591 | else { | ||
592 | #ifdef DEBUG | ||
593 | printk ("*** unexpected busfault type=%#04x\n", buserr_type); | ||
594 | printk ("invalid %s access at %#lx from pc %#lx\n", | ||
595 | !(ssw & RW) ? "write" : "read", addr, | ||
596 | fp->ptregs.pc); | ||
597 | #endif | ||
598 | die_if_kernel ("Oops", &fp->ptregs, buserr_type); | ||
599 | force_sig (SIGBUS, current); | ||
600 | return; | ||
601 | } | ||
602 | |||
603 | //todo: wtf is RM bit? --m | ||
604 | if (!(ssw & RW) || ssw & RM) | ||
605 | errorcode |= 0x02; | ||
606 | |||
607 | /* Handle page fault. */ | ||
608 | do_page_fault (&fp->ptregs, addr, errorcode); | ||
609 | |||
610 | /* Retry the data fault now. */ | ||
611 | return; | ||
612 | } | ||
613 | |||
614 | /* Now handle the instruction fault. */ | ||
615 | |||
616 | /* Get the fault address. */ | ||
617 | if (fp->ptregs.format == 0xA) | ||
618 | addr = fp->ptregs.pc + 4; | ||
619 | else | ||
620 | addr = fp->un.fmtb.baddr; | ||
621 | if (ssw & FC) | ||
622 | addr -= 2; | ||
623 | |||
624 | if (buserr_type & SUN3_BUSERR_INVALID) { | ||
625 | if (!mmu_emu_handle_fault (fp->un.fmtb.daddr, 1, 0)) | ||
626 | do_page_fault (&fp->ptregs, addr, 0); | ||
627 | } else { | ||
628 | #ifdef DEBUG | ||
629 | printk ("protection fault on insn access (segv).\n"); | ||
630 | #endif | ||
631 | force_sig (SIGSEGV, current); | ||
632 | } | ||
633 | } | ||
634 | #else | ||
635 | #if defined(CPU_M68020_OR_M68030) | ||
636 | static inline void bus_error030 (struct frame *fp) | ||
637 | { | ||
638 | volatile unsigned short temp; | ||
639 | unsigned short mmusr; | ||
640 | unsigned long addr, errorcode; | ||
641 | unsigned short ssw = fp->un.fmtb.ssw; | ||
642 | #ifdef DEBUG | ||
643 | unsigned long desc; | ||
644 | |||
645 | printk ("pid = %x ", current->pid); | ||
646 | printk ("SSW=%#06x ", ssw); | ||
647 | |||
648 | if (ssw & (FC | FB)) | ||
649 | printk ("Instruction fault at %#010lx\n", | ||
650 | ssw & FC ? | ||
651 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 | ||
652 | : | ||
653 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); | ||
654 | if (ssw & DF) | ||
655 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
656 | ssw & RW ? "read" : "write", | ||
657 | fp->un.fmtb.daddr, | ||
658 | space_names[ssw & DFC], fp->ptregs.pc); | ||
659 | #endif | ||
660 | |||
661 | /* ++andreas: If a data fault and an instruction fault happen | ||
662 | at the same time map in both pages. */ | ||
663 | |||
664 | /* First handle the data fault, if any. */ | ||
665 | if (ssw & DF) { | ||
666 | addr = fp->un.fmtb.daddr; | ||
667 | |||
668 | #ifdef DEBUG | ||
669 | asm volatile ("ptestr %3,%2@,#7,%0\n\t" | ||
670 | "pmove %%psr,%1@" | ||
671 | : "=a&" (desc) | ||
672 | : "a" (&temp), "a" (addr), "d" (ssw)); | ||
673 | #else | ||
674 | asm volatile ("ptestr %2,%1@,#7\n\t" | ||
675 | "pmove %%psr,%0@" | ||
676 | : : "a" (&temp), "a" (addr), "d" (ssw)); | ||
677 | #endif | ||
678 | mmusr = temp; | ||
679 | |||
680 | #ifdef DEBUG | ||
681 | printk("mmusr is %#x for addr %#lx in task %p\n", | ||
682 | mmusr, addr, current); | ||
683 | printk("descriptor address is %#lx, contents %#lx\n", | ||
684 | __va(desc), *(unsigned long *)__va(desc)); | ||
685 | #endif | ||
686 | |||
687 | errorcode = (mmusr & MMU_I) ? 0 : 1; | ||
688 | if (!(ssw & RW) || (ssw & RM)) | ||
689 | errorcode |= 2; | ||
690 | |||
691 | if (mmusr & (MMU_I | MMU_WP)) { | ||
692 | if (ssw & 4) { | ||
693 | printk("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
694 | ssw & RW ? "read" : "write", | ||
695 | fp->un.fmtb.daddr, | ||
696 | space_names[ssw & DFC], fp->ptregs.pc); | ||
697 | goto buserr; | ||
698 | } | ||
699 | /* Don't try to do anything further if an exception was | ||
700 | handled. */ | ||
701 | if (do_page_fault (&fp->ptregs, addr, errorcode) < 0) | ||
702 | return; | ||
703 | } else if (!(mmusr & MMU_I)) { | ||
704 | /* probably a 020 cas fault */ | ||
705 | if (!(ssw & RM) && send_fault_sig(&fp->ptregs) > 0) | ||
706 | printk("unexpected bus error (%#x,%#x)\n", ssw, mmusr); | ||
707 | } else if (mmusr & (MMU_B|MMU_L|MMU_S)) { | ||
708 | printk("invalid %s access at %#lx from pc %#lx\n", | ||
709 | !(ssw & RW) ? "write" : "read", addr, | ||
710 | fp->ptregs.pc); | ||
711 | die_if_kernel("Oops",&fp->ptregs,mmusr); | ||
712 | force_sig(SIGSEGV, current); | ||
713 | return; | ||
714 | } else { | ||
715 | #if 0 | ||
716 | static volatile long tlong; | ||
717 | #endif | ||
718 | |||
719 | printk("weird %s access at %#lx from pc %#lx (ssw is %#x)\n", | ||
720 | !(ssw & RW) ? "write" : "read", addr, | ||
721 | fp->ptregs.pc, ssw); | ||
722 | asm volatile ("ptestr #1,%1@,#0\n\t" | ||
723 | "pmove %%psr,%0@" | ||
724 | : /* no outputs */ | ||
725 | : "a" (&temp), "a" (addr)); | ||
726 | mmusr = temp; | ||
727 | |||
728 | printk ("level 0 mmusr is %#x\n", mmusr); | ||
729 | #if 0 | ||
730 | asm volatile ("pmove %%tt0,%0@" | ||
731 | : /* no outputs */ | ||
732 | : "a" (&tlong)); | ||
733 | printk("tt0 is %#lx, ", tlong); | ||
734 | asm volatile ("pmove %%tt1,%0@" | ||
735 | : /* no outputs */ | ||
736 | : "a" (&tlong)); | ||
737 | printk("tt1 is %#lx\n", tlong); | ||
738 | #endif | ||
739 | #ifdef DEBUG | ||
740 | printk("Unknown SIGSEGV - 1\n"); | ||
741 | #endif | ||
742 | die_if_kernel("Oops",&fp->ptregs,mmusr); | ||
743 | force_sig(SIGSEGV, current); | ||
744 | return; | ||
745 | } | ||
746 | |||
747 | /* setup an ATC entry for the access about to be retried */ | ||
748 | if (!(ssw & RW) || (ssw & RM)) | ||
749 | asm volatile ("ploadw %1,%0@" : /* no outputs */ | ||
750 | : "a" (addr), "d" (ssw)); | ||
751 | else | ||
752 | asm volatile ("ploadr %1,%0@" : /* no outputs */ | ||
753 | : "a" (addr), "d" (ssw)); | ||
754 | } | ||
755 | |||
756 | /* Now handle the instruction fault. */ | ||
757 | |||
758 | if (!(ssw & (FC|FB))) | ||
759 | return; | ||
760 | |||
761 | if (fp->ptregs.sr & PS_S) { | ||
762 | printk("Instruction fault at %#010lx\n", | ||
763 | fp->ptregs.pc); | ||
764 | buserr: | ||
765 | printk ("BAD KERNEL BUSERR\n"); | ||
766 | die_if_kernel("Oops",&fp->ptregs,0); | ||
767 | force_sig(SIGKILL, current); | ||
768 | return; | ||
769 | } | ||
770 | |||
771 | /* get the fault address */ | ||
772 | if (fp->ptregs.format == 10) | ||
773 | addr = fp->ptregs.pc + 4; | ||
774 | else | ||
775 | addr = fp->un.fmtb.baddr; | ||
776 | if (ssw & FC) | ||
777 | addr -= 2; | ||
778 | |||
779 | if ((ssw & DF) && ((addr ^ fp->un.fmtb.daddr) & PAGE_MASK) == 0) | ||
780 | /* Insn fault on same page as data fault. But we | ||
781 | should still create the ATC entry. */ | ||
782 | goto create_atc_entry; | ||
783 | |||
784 | #ifdef DEBUG | ||
785 | asm volatile ("ptestr #1,%2@,#7,%0\n\t" | ||
786 | "pmove %%psr,%1@" | ||
787 | : "=a&" (desc) | ||
788 | : "a" (&temp), "a" (addr)); | ||
789 | #else | ||
790 | asm volatile ("ptestr #1,%1@,#7\n\t" | ||
791 | "pmove %%psr,%0@" | ||
792 | : : "a" (&temp), "a" (addr)); | ||
793 | #endif | ||
794 | mmusr = temp; | ||
795 | |||
796 | #ifdef DEBUG | ||
797 | printk ("mmusr is %#x for addr %#lx in task %p\n", | ||
798 | mmusr, addr, current); | ||
799 | printk ("descriptor address is %#lx, contents %#lx\n", | ||
800 | __va(desc), *(unsigned long *)__va(desc)); | ||
801 | #endif | ||
802 | |||
803 | if (mmusr & MMU_I) | ||
804 | do_page_fault (&fp->ptregs, addr, 0); | ||
805 | else if (mmusr & (MMU_B|MMU_L|MMU_S)) { | ||
806 | printk ("invalid insn access at %#lx from pc %#lx\n", | ||
807 | addr, fp->ptregs.pc); | ||
808 | #ifdef DEBUG | ||
809 | printk("Unknown SIGSEGV - 2\n"); | ||
810 | #endif | ||
811 | die_if_kernel("Oops",&fp->ptregs,mmusr); | ||
812 | force_sig(SIGSEGV, current); | ||
813 | return; | ||
814 | } | ||
815 | |||
816 | create_atc_entry: | ||
817 | /* setup an ATC entry for the access about to be retried */ | ||
818 | asm volatile ("ploadr #2,%0@" : /* no outputs */ | ||
819 | : "a" (addr)); | ||
820 | } | ||
821 | #endif /* CPU_M68020_OR_M68030 */ | ||
822 | #endif /* !CONFIG_SUN3 */ | ||
823 | |||
824 | asmlinkage void buserr_c(struct frame *fp) | ||
825 | { | ||
826 | /* Only set esp0 if coming from user mode */ | ||
827 | if (user_mode(&fp->ptregs)) | ||
828 | current->thread.esp0 = (unsigned long) fp; | ||
829 | |||
830 | #ifdef DEBUG | ||
831 | printk ("*** Bus Error *** Format is %x\n", fp->ptregs.format); | ||
832 | #endif | ||
833 | |||
834 | switch (fp->ptregs.format) { | ||
835 | #if defined (CONFIG_M68060) | ||
836 | case 4: /* 68060 access error */ | ||
837 | access_error060 (fp); | ||
838 | break; | ||
839 | #endif | ||
840 | #if defined (CONFIG_M68040) | ||
841 | case 0x7: /* 68040 access error */ | ||
842 | access_error040 (fp); | ||
843 | break; | ||
844 | #endif | ||
845 | #if defined (CPU_M68020_OR_M68030) | ||
846 | case 0xa: | ||
847 | case 0xb: | ||
848 | bus_error030 (fp); | ||
849 | break; | ||
850 | #endif | ||
851 | default: | ||
852 | die_if_kernel("bad frame format",&fp->ptregs,0); | ||
853 | #ifdef DEBUG | ||
854 | printk("Unknown SIGSEGV - 4\n"); | ||
855 | #endif | ||
856 | force_sig(SIGSEGV, current); | ||
857 | } | ||
858 | } | ||
859 | |||
860 | |||
861 | static int kstack_depth_to_print = 48; | ||
862 | |||
863 | void show_trace(unsigned long *stack) | ||
864 | { | ||
865 | unsigned long *endstack; | ||
866 | unsigned long addr; | ||
867 | int i; | ||
868 | |||
869 | printk("Call Trace:"); | ||
870 | addr = (unsigned long)stack + THREAD_SIZE - 1; | ||
871 | endstack = (unsigned long *)(addr & -THREAD_SIZE); | ||
872 | i = 0; | ||
873 | while (stack + 1 <= endstack) { | ||
874 | addr = *stack++; | ||
875 | /* | ||
876 | * If the address is either in the text segment of the | ||
877 | * kernel, or in the region which contains vmalloc'ed | ||
878 | * memory, it *may* be the address of a calling | ||
879 | * routine; if so, print it so that someone tracing | ||
880 | * down the cause of the crash will be able to figure | ||
881 | * out the call path that was taken. | ||
882 | */ | ||
883 | if (__kernel_text_address(addr)) { | ||
884 | #ifndef CONFIG_KALLSYMS | ||
885 | if (i % 5 == 0) | ||
886 | printk("\n "); | ||
887 | #endif | ||
888 | printk(" [<%08lx>] %pS\n", addr, (void *)addr); | ||
889 | i++; | ||
890 | } | ||
891 | } | ||
892 | printk("\n"); | ||
893 | } | ||
894 | |||
895 | void show_registers(struct pt_regs *regs) | ||
896 | { | ||
897 | struct frame *fp = (struct frame *)regs; | ||
898 | mm_segment_t old_fs = get_fs(); | ||
899 | u16 c, *cp; | ||
900 | unsigned long addr; | ||
901 | int i; | ||
902 | |||
903 | print_modules(); | ||
904 | printk("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc); | ||
905 | printk("SR: %04x SP: %p a2: %08lx\n", regs->sr, regs, regs->a2); | ||
906 | printk("d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", | ||
907 | regs->d0, regs->d1, regs->d2, regs->d3); | ||
908 | printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", | ||
909 | regs->d4, regs->d5, regs->a0, regs->a1); | ||
910 | |||
911 | printk("Process %s (pid: %d, task=%p)\n", | ||
912 | current->comm, task_pid_nr(current), current); | ||
913 | addr = (unsigned long)&fp->un; | ||
914 | printk("Frame format=%X ", regs->format); | ||
915 | switch (regs->format) { | ||
916 | case 0x2: | ||
917 | printk("instr addr=%08lx\n", fp->un.fmt2.iaddr); | ||
918 | addr += sizeof(fp->un.fmt2); | ||
919 | break; | ||
920 | case 0x3: | ||
921 | printk("eff addr=%08lx\n", fp->un.fmt3.effaddr); | ||
922 | addr += sizeof(fp->un.fmt3); | ||
923 | break; | ||
924 | case 0x4: | ||
925 | printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n" | ||
926 | : "eff addr=%08lx pc=%08lx\n"), | ||
927 | fp->un.fmt4.effaddr, fp->un.fmt4.pc); | ||
928 | addr += sizeof(fp->un.fmt4); | ||
929 | break; | ||
930 | case 0x7: | ||
931 | printk("eff addr=%08lx ssw=%04x faddr=%08lx\n", | ||
932 | fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr); | ||
933 | printk("wb 1 stat/addr/data: %04x %08lx %08lx\n", | ||
934 | fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0); | ||
935 | printk("wb 2 stat/addr/data: %04x %08lx %08lx\n", | ||
936 | fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d); | ||
937 | printk("wb 3 stat/addr/data: %04x %08lx %08lx\n", | ||
938 | fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d); | ||
939 | printk("push data: %08lx %08lx %08lx %08lx\n", | ||
940 | fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2, | ||
941 | fp->un.fmt7.pd3); | ||
942 | addr += sizeof(fp->un.fmt7); | ||
943 | break; | ||
944 | case 0x9: | ||
945 | printk("instr addr=%08lx\n", fp->un.fmt9.iaddr); | ||
946 | addr += sizeof(fp->un.fmt9); | ||
947 | break; | ||
948 | case 0xa: | ||
949 | printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", | ||
950 | fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb, | ||
951 | fp->un.fmta.daddr, fp->un.fmta.dobuf); | ||
952 | addr += sizeof(fp->un.fmta); | ||
953 | break; | ||
954 | case 0xb: | ||
955 | printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", | ||
956 | fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb, | ||
957 | fp->un.fmtb.daddr, fp->un.fmtb.dobuf); | ||
958 | printk("baddr=%08lx dibuf=%08lx ver=%x\n", | ||
959 | fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver); | ||
960 | addr += sizeof(fp->un.fmtb); | ||
961 | break; | ||
962 | default: | ||
963 | printk("\n"); | ||
964 | } | ||
965 | show_stack(NULL, (unsigned long *)addr); | ||
966 | |||
967 | printk("Code:"); | ||
968 | set_fs(KERNEL_DS); | ||
969 | cp = (u16 *)regs->pc; | ||
970 | for (i = -8; i < 16; i++) { | ||
971 | if (get_user(c, cp + i) && i >= 0) { | ||
972 | printk(" Bad PC value."); | ||
973 | break; | ||
974 | } | ||
975 | printk(i ? " %04x" : " <%04x>", c); | ||
976 | } | ||
977 | set_fs(old_fs); | ||
978 | printk ("\n"); | ||
979 | } | ||
980 | |||
981 | void show_stack(struct task_struct *task, unsigned long *stack) | ||
982 | { | ||
983 | unsigned long *p; | ||
984 | unsigned long *endstack; | ||
985 | int i; | ||
986 | |||
987 | if (!stack) { | ||
988 | if (task) | ||
989 | stack = (unsigned long *)task->thread.esp0; | ||
990 | else | ||
991 | stack = (unsigned long *)&stack; | ||
992 | } | ||
993 | endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1) & -THREAD_SIZE); | ||
994 | |||
995 | printk("Stack from %08lx:", (unsigned long)stack); | ||
996 | p = stack; | ||
997 | for (i = 0; i < kstack_depth_to_print; i++) { | ||
998 | if (p + 1 > endstack) | ||
999 | break; | ||
1000 | if (i % 8 == 0) | ||
1001 | printk("\n "); | ||
1002 | printk(" %08lx", *p++); | ||
1003 | } | ||
1004 | printk("\n"); | ||
1005 | show_trace(stack); | ||
1006 | } | ||
1007 | |||
1008 | /* | ||
1009 | * The architecture-independent backtrace generator | ||
1010 | */ | ||
1011 | void dump_stack(void) | ||
1012 | { | ||
1013 | unsigned long stack; | ||
1014 | |||
1015 | show_trace(&stack); | ||
1016 | } | ||
1017 | |||
1018 | EXPORT_SYMBOL(dump_stack); | ||
1019 | |||
1020 | void bad_super_trap (struct frame *fp) | ||
1021 | { | ||
1022 | console_verbose(); | ||
1023 | if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names)) | ||
1024 | printk ("*** %s *** FORMAT=%X\n", | ||
1025 | vec_names[(fp->ptregs.vector) >> 2], | ||
1026 | fp->ptregs.format); | ||
1027 | else | ||
1028 | printk ("*** Exception %d *** FORMAT=%X\n", | ||
1029 | (fp->ptregs.vector) >> 2, | ||
1030 | fp->ptregs.format); | ||
1031 | if (fp->ptregs.vector >> 2 == VEC_ADDRERR && CPU_IS_020_OR_030) { | ||
1032 | unsigned short ssw = fp->un.fmtb.ssw; | ||
1033 | |||
1034 | printk ("SSW=%#06x ", ssw); | ||
1035 | |||
1036 | if (ssw & RC) | ||
1037 | printk ("Pipe stage C instruction fault at %#010lx\n", | ||
1038 | (fp->ptregs.format) == 0xA ? | ||
1039 | fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2); | ||
1040 | if (ssw & RB) | ||
1041 | printk ("Pipe stage B instruction fault at %#010lx\n", | ||
1042 | (fp->ptregs.format) == 0xA ? | ||
1043 | fp->ptregs.pc + 4 : fp->un.fmtb.baddr); | ||
1044 | if (ssw & DF) | ||
1045 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
1046 | ssw & RW ? "read" : "write", | ||
1047 | fp->un.fmtb.daddr, space_names[ssw & DFC], | ||
1048 | fp->ptregs.pc); | ||
1049 | } | ||
1050 | printk ("Current process id is %d\n", task_pid_nr(current)); | ||
1051 | die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); | ||
1052 | } | ||
1053 | |||
1054 | asmlinkage void trap_c(struct frame *fp) | ||
1055 | { | ||
1056 | int sig; | ||
1057 | siginfo_t info; | ||
1058 | |||
1059 | if (fp->ptregs.sr & PS_S) { | ||
1060 | if (fp->ptregs.vector == VEC_TRACE << 2) { | ||
1061 | /* traced a trapping instruction on a 68020/30, | ||
1062 | * real exception will be executed afterwards. | ||
1063 | */ | ||
1064 | } else if (!handle_kernel_fault(&fp->ptregs)) | ||
1065 | bad_super_trap(fp); | ||
1066 | return; | ||
1067 | } | ||
1068 | |||
1069 | /* send the appropriate signal to the user program */ | ||
1070 | switch ((fp->ptregs.vector) >> 2) { | ||
1071 | case VEC_ADDRERR: | ||
1072 | info.si_code = BUS_ADRALN; | ||
1073 | sig = SIGBUS; | ||
1074 | break; | ||
1075 | case VEC_ILLEGAL: | ||
1076 | case VEC_LINE10: | ||
1077 | case VEC_LINE11: | ||
1078 | info.si_code = ILL_ILLOPC; | ||
1079 | sig = SIGILL; | ||
1080 | break; | ||
1081 | case VEC_PRIV: | ||
1082 | info.si_code = ILL_PRVOPC; | ||
1083 | sig = SIGILL; | ||
1084 | break; | ||
1085 | case VEC_COPROC: | ||
1086 | info.si_code = ILL_COPROC; | ||
1087 | sig = SIGILL; | ||
1088 | break; | ||
1089 | case VEC_TRAP1: | ||
1090 | case VEC_TRAP2: | ||
1091 | case VEC_TRAP3: | ||
1092 | case VEC_TRAP4: | ||
1093 | case VEC_TRAP5: | ||
1094 | case VEC_TRAP6: | ||
1095 | case VEC_TRAP7: | ||
1096 | case VEC_TRAP8: | ||
1097 | case VEC_TRAP9: | ||
1098 | case VEC_TRAP10: | ||
1099 | case VEC_TRAP11: | ||
1100 | case VEC_TRAP12: | ||
1101 | case VEC_TRAP13: | ||
1102 | case VEC_TRAP14: | ||
1103 | info.si_code = ILL_ILLTRP; | ||
1104 | sig = SIGILL; | ||
1105 | break; | ||
1106 | case VEC_FPBRUC: | ||
1107 | case VEC_FPOE: | ||
1108 | case VEC_FPNAN: | ||
1109 | info.si_code = FPE_FLTINV; | ||
1110 | sig = SIGFPE; | ||
1111 | break; | ||
1112 | case VEC_FPIR: | ||
1113 | info.si_code = FPE_FLTRES; | ||
1114 | sig = SIGFPE; | ||
1115 | break; | ||
1116 | case VEC_FPDIVZ: | ||
1117 | info.si_code = FPE_FLTDIV; | ||
1118 | sig = SIGFPE; | ||
1119 | break; | ||
1120 | case VEC_FPUNDER: | ||
1121 | info.si_code = FPE_FLTUND; | ||
1122 | sig = SIGFPE; | ||
1123 | break; | ||
1124 | case VEC_FPOVER: | ||
1125 | info.si_code = FPE_FLTOVF; | ||
1126 | sig = SIGFPE; | ||
1127 | break; | ||
1128 | case VEC_ZERODIV: | ||
1129 | info.si_code = FPE_INTDIV; | ||
1130 | sig = SIGFPE; | ||
1131 | break; | ||
1132 | case VEC_CHK: | ||
1133 | case VEC_TRAP: | ||
1134 | info.si_code = FPE_INTOVF; | ||
1135 | sig = SIGFPE; | ||
1136 | break; | ||
1137 | case VEC_TRACE: /* ptrace single step */ | ||
1138 | info.si_code = TRAP_TRACE; | ||
1139 | sig = SIGTRAP; | ||
1140 | break; | ||
1141 | case VEC_TRAP15: /* breakpoint */ | ||
1142 | info.si_code = TRAP_BRKPT; | ||
1143 | sig = SIGTRAP; | ||
1144 | break; | ||
1145 | default: | ||
1146 | info.si_code = ILL_ILLOPC; | ||
1147 | sig = SIGILL; | ||
1148 | break; | ||
1149 | } | ||
1150 | info.si_signo = sig; | ||
1151 | info.si_errno = 0; | ||
1152 | switch (fp->ptregs.format) { | ||
1153 | default: | ||
1154 | info.si_addr = (void *) fp->ptregs.pc; | ||
1155 | break; | ||
1156 | case 2: | ||
1157 | info.si_addr = (void *) fp->un.fmt2.iaddr; | ||
1158 | break; | ||
1159 | case 7: | ||
1160 | info.si_addr = (void *) fp->un.fmt7.effaddr; | ||
1161 | break; | ||
1162 | case 9: | ||
1163 | info.si_addr = (void *) fp->un.fmt9.iaddr; | ||
1164 | break; | ||
1165 | case 10: | ||
1166 | info.si_addr = (void *) fp->un.fmta.daddr; | ||
1167 | break; | ||
1168 | case 11: | ||
1169 | info.si_addr = (void *) fp->un.fmtb.daddr; | ||
1170 | break; | ||
1171 | } | ||
1172 | force_sig_info (sig, &info, current); | ||
1173 | } | ||
1174 | |||
1175 | void die_if_kernel (char *str, struct pt_regs *fp, int nr) | ||
1176 | { | ||
1177 | if (!(fp->sr & PS_S)) | ||
1178 | return; | ||
1179 | |||
1180 | console_verbose(); | ||
1181 | printk("%s: %08x\n",str,nr); | ||
1182 | show_registers(fp); | ||
1183 | add_taint(TAINT_DIE); | ||
1184 | do_exit(SIGSEGV); | ||
1185 | } | ||
1186 | |||
1187 | /* | ||
1188 | * This function is called if an error occur while accessing | ||
1189 | * user-space from the fpsp040 code. | ||
1190 | */ | ||
1191 | asmlinkage void fpsp040_die(void) | ||
1192 | { | ||
1193 | do_exit(SIGSEGV); | ||
1194 | } | ||
1195 | |||
1196 | #ifdef CONFIG_M68KFPU_EMU | ||
1197 | asmlinkage void fpemu_signal(int signal, int code, void *addr) | ||
1198 | { | ||
1199 | siginfo_t info; | ||
1200 | |||
1201 | info.si_signo = signal; | ||
1202 | info.si_errno = 0; | ||
1203 | info.si_code = code; | ||
1204 | info.si_addr = addr; | ||
1205 | force_sig_info(signal, &info, current); | ||
1206 | } | ||
1207 | #endif | 5 | #endif |
diff --git a/arch/m68k/kernel/traps_mm.c b/arch/m68k/kernel/traps_mm.c new file mode 100644 index 000000000000..4022bbc28878 --- /dev/null +++ b/arch/m68k/kernel/traps_mm.c | |||
@@ -0,0 +1,1207 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/kernel/traps.c | ||
3 | * | ||
4 | * Copyright (C) 1993, 1994 by Hamish Macdonald | ||
5 | * | ||
6 | * 68040 fixes by Michael Rausch | ||
7 | * 68040 fixes by Martin Apel | ||
8 | * 68040 fixes and writeback by Richard Zidlicky | ||
9 | * 68060 fixes by Roman Hodek | ||
10 | * 68060 fixes by Jesper Skov | ||
11 | * | ||
12 | * This file is subject to the terms and conditions of the GNU General Public | ||
13 | * License. See the file COPYING in the main directory of this archive | ||
14 | * for more details. | ||
15 | */ | ||
16 | |||
17 | /* | ||
18 | * Sets up all exception vectors | ||
19 | */ | ||
20 | |||
21 | #include <linux/sched.h> | ||
22 | #include <linux/signal.h> | ||
23 | #include <linux/kernel.h> | ||
24 | #include <linux/mm.h> | ||
25 | #include <linux/module.h> | ||
26 | #include <linux/user.h> | ||
27 | #include <linux/string.h> | ||
28 | #include <linux/linkage.h> | ||
29 | #include <linux/init.h> | ||
30 | #include <linux/ptrace.h> | ||
31 | #include <linux/kallsyms.h> | ||
32 | |||
33 | #include <asm/setup.h> | ||
34 | #include <asm/fpu.h> | ||
35 | #include <asm/system.h> | ||
36 | #include <asm/uaccess.h> | ||
37 | #include <asm/traps.h> | ||
38 | #include <asm/pgalloc.h> | ||
39 | #include <asm/machdep.h> | ||
40 | #include <asm/siginfo.h> | ||
41 | |||
42 | /* assembler routines */ | ||
43 | asmlinkage void system_call(void); | ||
44 | asmlinkage void buserr(void); | ||
45 | asmlinkage void trap(void); | ||
46 | asmlinkage void nmihandler(void); | ||
47 | #ifdef CONFIG_M68KFPU_EMU | ||
48 | asmlinkage void fpu_emu(void); | ||
49 | #endif | ||
50 | |||
51 | e_vector vectors[256]; | ||
52 | |||
53 | /* nmi handler for the Amiga */ | ||
54 | asm(".text\n" | ||
55 | __ALIGN_STR "\n" | ||
56 | "nmihandler: rte"); | ||
57 | |||
58 | /* | ||
59 | * this must be called very early as the kernel might | ||
60 | * use some instruction that are emulated on the 060 | ||
61 | * and so we're prepared for early probe attempts (e.g. nf_init). | ||
62 | */ | ||
63 | void __init base_trap_init(void) | ||
64 | { | ||
65 | if (MACH_IS_SUN3X) { | ||
66 | extern e_vector *sun3x_prom_vbr; | ||
67 | |||
68 | __asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr)); | ||
69 | } | ||
70 | |||
71 | /* setup the exception vector table */ | ||
72 | __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); | ||
73 | |||
74 | if (CPU_IS_060) { | ||
75 | /* set up ISP entry points */ | ||
76 | asmlinkage void unimp_vec(void) asm ("_060_isp_unimp"); | ||
77 | |||
78 | vectors[VEC_UNIMPII] = unimp_vec; | ||
79 | } | ||
80 | |||
81 | vectors[VEC_BUSERR] = buserr; | ||
82 | vectors[VEC_ILLEGAL] = trap; | ||
83 | vectors[VEC_SYS] = system_call; | ||
84 | } | ||
85 | |||
86 | void __init trap_init (void) | ||
87 | { | ||
88 | int i; | ||
89 | |||
90 | for (i = VEC_SPUR; i <= VEC_INT7; i++) | ||
91 | vectors[i] = bad_inthandler; | ||
92 | |||
93 | for (i = 0; i < VEC_USER; i++) | ||
94 | if (!vectors[i]) | ||
95 | vectors[i] = trap; | ||
96 | |||
97 | for (i = VEC_USER; i < 256; i++) | ||
98 | vectors[i] = bad_inthandler; | ||
99 | |||
100 | #ifdef CONFIG_M68KFPU_EMU | ||
101 | if (FPU_IS_EMU) | ||
102 | vectors[VEC_LINE11] = fpu_emu; | ||
103 | #endif | ||
104 | |||
105 | if (CPU_IS_040 && !FPU_IS_EMU) { | ||
106 | /* set up FPSP entry points */ | ||
107 | asmlinkage void dz_vec(void) asm ("dz"); | ||
108 | asmlinkage void inex_vec(void) asm ("inex"); | ||
109 | asmlinkage void ovfl_vec(void) asm ("ovfl"); | ||
110 | asmlinkage void unfl_vec(void) asm ("unfl"); | ||
111 | asmlinkage void snan_vec(void) asm ("snan"); | ||
112 | asmlinkage void operr_vec(void) asm ("operr"); | ||
113 | asmlinkage void bsun_vec(void) asm ("bsun"); | ||
114 | asmlinkage void fline_vec(void) asm ("fline"); | ||
115 | asmlinkage void unsupp_vec(void) asm ("unsupp"); | ||
116 | |||
117 | vectors[VEC_FPDIVZ] = dz_vec; | ||
118 | vectors[VEC_FPIR] = inex_vec; | ||
119 | vectors[VEC_FPOVER] = ovfl_vec; | ||
120 | vectors[VEC_FPUNDER] = unfl_vec; | ||
121 | vectors[VEC_FPNAN] = snan_vec; | ||
122 | vectors[VEC_FPOE] = operr_vec; | ||
123 | vectors[VEC_FPBRUC] = bsun_vec; | ||
124 | vectors[VEC_LINE11] = fline_vec; | ||
125 | vectors[VEC_FPUNSUP] = unsupp_vec; | ||
126 | } | ||
127 | |||
128 | if (CPU_IS_060 && !FPU_IS_EMU) { | ||
129 | /* set up IFPSP entry points */ | ||
130 | asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan"); | ||
131 | asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr"); | ||
132 | asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl"); | ||
133 | asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl"); | ||
134 | asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz"); | ||
135 | asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex"); | ||
136 | asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline"); | ||
137 | asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp"); | ||
138 | asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd"); | ||
139 | |||
140 | vectors[VEC_FPNAN] = snan_vec6; | ||
141 | vectors[VEC_FPOE] = operr_vec6; | ||
142 | vectors[VEC_FPOVER] = ovfl_vec6; | ||
143 | vectors[VEC_FPUNDER] = unfl_vec6; | ||
144 | vectors[VEC_FPDIVZ] = dz_vec6; | ||
145 | vectors[VEC_FPIR] = inex_vec6; | ||
146 | vectors[VEC_LINE11] = fline_vec6; | ||
147 | vectors[VEC_FPUNSUP] = unsupp_vec6; | ||
148 | vectors[VEC_UNIMPEA] = effadd_vec6; | ||
149 | } | ||
150 | |||
151 | /* if running on an amiga, make the NMI interrupt do nothing */ | ||
152 | if (MACH_IS_AMIGA) { | ||
153 | vectors[VEC_INT7] = nmihandler; | ||
154 | } | ||
155 | } | ||
156 | |||
157 | |||
158 | static const char *vec_names[] = { | ||
159 | [VEC_RESETSP] = "RESET SP", | ||
160 | [VEC_RESETPC] = "RESET PC", | ||
161 | [VEC_BUSERR] = "BUS ERROR", | ||
162 | [VEC_ADDRERR] = "ADDRESS ERROR", | ||
163 | [VEC_ILLEGAL] = "ILLEGAL INSTRUCTION", | ||
164 | [VEC_ZERODIV] = "ZERO DIVIDE", | ||
165 | [VEC_CHK] = "CHK", | ||
166 | [VEC_TRAP] = "TRAPcc", | ||
167 | [VEC_PRIV] = "PRIVILEGE VIOLATION", | ||
168 | [VEC_TRACE] = "TRACE", | ||
169 | [VEC_LINE10] = "LINE 1010", | ||
170 | [VEC_LINE11] = "LINE 1111", | ||
171 | [VEC_RESV12] = "UNASSIGNED RESERVED 12", | ||
172 | [VEC_COPROC] = "COPROCESSOR PROTOCOL VIOLATION", | ||
173 | [VEC_FORMAT] = "FORMAT ERROR", | ||
174 | [VEC_UNINT] = "UNINITIALIZED INTERRUPT", | ||
175 | [VEC_RESV16] = "UNASSIGNED RESERVED 16", | ||
176 | [VEC_RESV17] = "UNASSIGNED RESERVED 17", | ||
177 | [VEC_RESV18] = "UNASSIGNED RESERVED 18", | ||
178 | [VEC_RESV19] = "UNASSIGNED RESERVED 19", | ||
179 | [VEC_RESV20] = "UNASSIGNED RESERVED 20", | ||
180 | [VEC_RESV21] = "UNASSIGNED RESERVED 21", | ||
181 | [VEC_RESV22] = "UNASSIGNED RESERVED 22", | ||
182 | [VEC_RESV23] = "UNASSIGNED RESERVED 23", | ||
183 | [VEC_SPUR] = "SPURIOUS INTERRUPT", | ||
184 | [VEC_INT1] = "LEVEL 1 INT", | ||
185 | [VEC_INT2] = "LEVEL 2 INT", | ||
186 | [VEC_INT3] = "LEVEL 3 INT", | ||
187 | [VEC_INT4] = "LEVEL 4 INT", | ||
188 | [VEC_INT5] = "LEVEL 5 INT", | ||
189 | [VEC_INT6] = "LEVEL 6 INT", | ||
190 | [VEC_INT7] = "LEVEL 7 INT", | ||
191 | [VEC_SYS] = "SYSCALL", | ||
192 | [VEC_TRAP1] = "TRAP #1", | ||
193 | [VEC_TRAP2] = "TRAP #2", | ||
194 | [VEC_TRAP3] = "TRAP #3", | ||
195 | [VEC_TRAP4] = "TRAP #4", | ||
196 | [VEC_TRAP5] = "TRAP #5", | ||
197 | [VEC_TRAP6] = "TRAP #6", | ||
198 | [VEC_TRAP7] = "TRAP #7", | ||
199 | [VEC_TRAP8] = "TRAP #8", | ||
200 | [VEC_TRAP9] = "TRAP #9", | ||
201 | [VEC_TRAP10] = "TRAP #10", | ||
202 | [VEC_TRAP11] = "TRAP #11", | ||
203 | [VEC_TRAP12] = "TRAP #12", | ||
204 | [VEC_TRAP13] = "TRAP #13", | ||
205 | [VEC_TRAP14] = "TRAP #14", | ||
206 | [VEC_TRAP15] = "TRAP #15", | ||
207 | [VEC_FPBRUC] = "FPCP BSUN", | ||
208 | [VEC_FPIR] = "FPCP INEXACT", | ||
209 | [VEC_FPDIVZ] = "FPCP DIV BY 0", | ||
210 | [VEC_FPUNDER] = "FPCP UNDERFLOW", | ||
211 | [VEC_FPOE] = "FPCP OPERAND ERROR", | ||
212 | [VEC_FPOVER] = "FPCP OVERFLOW", | ||
213 | [VEC_FPNAN] = "FPCP SNAN", | ||
214 | [VEC_FPUNSUP] = "FPCP UNSUPPORTED OPERATION", | ||
215 | [VEC_MMUCFG] = "MMU CONFIGURATION ERROR", | ||
216 | [VEC_MMUILL] = "MMU ILLEGAL OPERATION ERROR", | ||
217 | [VEC_MMUACC] = "MMU ACCESS LEVEL VIOLATION ERROR", | ||
218 | [VEC_RESV59] = "UNASSIGNED RESERVED 59", | ||
219 | [VEC_UNIMPEA] = "UNASSIGNED RESERVED 60", | ||
220 | [VEC_UNIMPII] = "UNASSIGNED RESERVED 61", | ||
221 | [VEC_RESV62] = "UNASSIGNED RESERVED 62", | ||
222 | [VEC_RESV63] = "UNASSIGNED RESERVED 63", | ||
223 | }; | ||
224 | |||
225 | static const char *space_names[] = { | ||
226 | [0] = "Space 0", | ||
227 | [USER_DATA] = "User Data", | ||
228 | [USER_PROGRAM] = "User Program", | ||
229 | #ifndef CONFIG_SUN3 | ||
230 | [3] = "Space 3", | ||
231 | #else | ||
232 | [FC_CONTROL] = "Control", | ||
233 | #endif | ||
234 | [4] = "Space 4", | ||
235 | [SUPER_DATA] = "Super Data", | ||
236 | [SUPER_PROGRAM] = "Super Program", | ||
237 | [CPU_SPACE] = "CPU" | ||
238 | }; | ||
239 | |||
240 | void die_if_kernel(char *,struct pt_regs *,int); | ||
241 | asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, | ||
242 | unsigned long error_code); | ||
243 | int send_fault_sig(struct pt_regs *regs); | ||
244 | |||
245 | asmlinkage void trap_c(struct frame *fp); | ||
246 | |||
247 | #if defined (CONFIG_M68060) | ||
248 | static inline void access_error060 (struct frame *fp) | ||
249 | { | ||
250 | unsigned long fslw = fp->un.fmt4.pc; /* is really FSLW for access error */ | ||
251 | |||
252 | #ifdef DEBUG | ||
253 | printk("fslw=%#lx, fa=%#lx\n", fslw, fp->un.fmt4.effaddr); | ||
254 | #endif | ||
255 | |||
256 | if (fslw & MMU060_BPE) { | ||
257 | /* branch prediction error -> clear branch cache */ | ||
258 | __asm__ __volatile__ ("movec %/cacr,%/d0\n\t" | ||
259 | "orl #0x00400000,%/d0\n\t" | ||
260 | "movec %/d0,%/cacr" | ||
261 | : : : "d0" ); | ||
262 | /* return if there's no other error */ | ||
263 | if (!(fslw & MMU060_ERR_BITS) && !(fslw & MMU060_SEE)) | ||
264 | return; | ||
265 | } | ||
266 | |||
267 | if (fslw & (MMU060_DESC_ERR | MMU060_WP | MMU060_SP)) { | ||
268 | unsigned long errorcode; | ||
269 | unsigned long addr = fp->un.fmt4.effaddr; | ||
270 | |||
271 | if (fslw & MMU060_MA) | ||
272 | addr = (addr + PAGE_SIZE - 1) & PAGE_MASK; | ||
273 | |||
274 | errorcode = 1; | ||
275 | if (fslw & MMU060_DESC_ERR) { | ||
276 | __flush_tlb040_one(addr); | ||
277 | errorcode = 0; | ||
278 | } | ||
279 | if (fslw & MMU060_W) | ||
280 | errorcode |= 2; | ||
281 | #ifdef DEBUG | ||
282 | printk("errorcode = %d\n", errorcode ); | ||
283 | #endif | ||
284 | do_page_fault(&fp->ptregs, addr, errorcode); | ||
285 | } else if (fslw & (MMU060_SEE)){ | ||
286 | /* Software Emulation Error. | ||
287 | * fault during mem_read/mem_write in ifpsp060/os.S | ||
288 | */ | ||
289 | send_fault_sig(&fp->ptregs); | ||
290 | } else if (!(fslw & (MMU060_RE|MMU060_WE)) || | ||
291 | send_fault_sig(&fp->ptregs) > 0) { | ||
292 | printk("pc=%#lx, fa=%#lx\n", fp->ptregs.pc, fp->un.fmt4.effaddr); | ||
293 | printk( "68060 access error, fslw=%lx\n", fslw ); | ||
294 | trap_c( fp ); | ||
295 | } | ||
296 | } | ||
297 | #endif /* CONFIG_M68060 */ | ||
298 | |||
299 | #if defined (CONFIG_M68040) | ||
300 | static inline unsigned long probe040(int iswrite, unsigned long addr, int wbs) | ||
301 | { | ||
302 | unsigned long mmusr; | ||
303 | mm_segment_t old_fs = get_fs(); | ||
304 | |||
305 | set_fs(MAKE_MM_SEG(wbs)); | ||
306 | |||
307 | if (iswrite) | ||
308 | asm volatile (".chip 68040; ptestw (%0); .chip 68k" : : "a" (addr)); | ||
309 | else | ||
310 | asm volatile (".chip 68040; ptestr (%0); .chip 68k" : : "a" (addr)); | ||
311 | |||
312 | asm volatile (".chip 68040; movec %%mmusr,%0; .chip 68k" : "=r" (mmusr)); | ||
313 | |||
314 | set_fs(old_fs); | ||
315 | |||
316 | return mmusr; | ||
317 | } | ||
318 | |||
319 | static inline int do_040writeback1(unsigned short wbs, unsigned long wba, | ||
320 | unsigned long wbd) | ||
321 | { | ||
322 | int res = 0; | ||
323 | mm_segment_t old_fs = get_fs(); | ||
324 | |||
325 | /* set_fs can not be moved, otherwise put_user() may oops */ | ||
326 | set_fs(MAKE_MM_SEG(wbs)); | ||
327 | |||
328 | switch (wbs & WBSIZ_040) { | ||
329 | case BA_SIZE_BYTE: | ||
330 | res = put_user(wbd & 0xff, (char __user *)wba); | ||
331 | break; | ||
332 | case BA_SIZE_WORD: | ||
333 | res = put_user(wbd & 0xffff, (short __user *)wba); | ||
334 | break; | ||
335 | case BA_SIZE_LONG: | ||
336 | res = put_user(wbd, (int __user *)wba); | ||
337 | break; | ||
338 | } | ||
339 | |||
340 | /* set_fs can not be moved, otherwise put_user() may oops */ | ||
341 | set_fs(old_fs); | ||
342 | |||
343 | |||
344 | #ifdef DEBUG | ||
345 | printk("do_040writeback1, res=%d\n",res); | ||
346 | #endif | ||
347 | |||
348 | return res; | ||
349 | } | ||
350 | |||
351 | /* after an exception in a writeback the stack frame corresponding | ||
352 | * to that exception is discarded, set a few bits in the old frame | ||
353 | * to simulate what it should look like | ||
354 | */ | ||
355 | static inline void fix_xframe040(struct frame *fp, unsigned long wba, unsigned short wbs) | ||
356 | { | ||
357 | fp->un.fmt7.faddr = wba; | ||
358 | fp->un.fmt7.ssw = wbs & 0xff; | ||
359 | if (wba != current->thread.faddr) | ||
360 | fp->un.fmt7.ssw |= MA_040; | ||
361 | } | ||
362 | |||
363 | static inline void do_040writebacks(struct frame *fp) | ||
364 | { | ||
365 | int res = 0; | ||
366 | #if 0 | ||
367 | if (fp->un.fmt7.wb1s & WBV_040) | ||
368 | printk("access_error040: cannot handle 1st writeback. oops.\n"); | ||
369 | #endif | ||
370 | |||
371 | if ((fp->un.fmt7.wb2s & WBV_040) && | ||
372 | !(fp->un.fmt7.wb2s & WBTT_040)) { | ||
373 | res = do_040writeback1(fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, | ||
374 | fp->un.fmt7.wb2d); | ||
375 | if (res) | ||
376 | fix_xframe040(fp, fp->un.fmt7.wb2a, fp->un.fmt7.wb2s); | ||
377 | else | ||
378 | fp->un.fmt7.wb2s = 0; | ||
379 | } | ||
380 | |||
381 | /* do the 2nd wb only if the first one was successful (except for a kernel wb) */ | ||
382 | if (fp->un.fmt7.wb3s & WBV_040 && (!res || fp->un.fmt7.wb3s & 4)) { | ||
383 | res = do_040writeback1(fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, | ||
384 | fp->un.fmt7.wb3d); | ||
385 | if (res) | ||
386 | { | ||
387 | fix_xframe040(fp, fp->un.fmt7.wb3a, fp->un.fmt7.wb3s); | ||
388 | |||
389 | fp->un.fmt7.wb2s = fp->un.fmt7.wb3s; | ||
390 | fp->un.fmt7.wb3s &= (~WBV_040); | ||
391 | fp->un.fmt7.wb2a = fp->un.fmt7.wb3a; | ||
392 | fp->un.fmt7.wb2d = fp->un.fmt7.wb3d; | ||
393 | } | ||
394 | else | ||
395 | fp->un.fmt7.wb3s = 0; | ||
396 | } | ||
397 | |||
398 | if (res) | ||
399 | send_fault_sig(&fp->ptregs); | ||
400 | } | ||
401 | |||
402 | /* | ||
403 | * called from sigreturn(), must ensure userspace code didn't | ||
404 | * manipulate exception frame to circumvent protection, then complete | ||
405 | * pending writebacks | ||
406 | * we just clear TM2 to turn it into a userspace access | ||
407 | */ | ||
408 | asmlinkage void berr_040cleanup(struct frame *fp) | ||
409 | { | ||
410 | fp->un.fmt7.wb2s &= ~4; | ||
411 | fp->un.fmt7.wb3s &= ~4; | ||
412 | |||
413 | do_040writebacks(fp); | ||
414 | } | ||
415 | |||
416 | static inline void access_error040(struct frame *fp) | ||
417 | { | ||
418 | unsigned short ssw = fp->un.fmt7.ssw; | ||
419 | unsigned long mmusr; | ||
420 | |||
421 | #ifdef DEBUG | ||
422 | printk("ssw=%#x, fa=%#lx\n", ssw, fp->un.fmt7.faddr); | ||
423 | printk("wb1s=%#x, wb2s=%#x, wb3s=%#x\n", fp->un.fmt7.wb1s, | ||
424 | fp->un.fmt7.wb2s, fp->un.fmt7.wb3s); | ||
425 | printk ("wb2a=%lx, wb3a=%lx, wb2d=%lx, wb3d=%lx\n", | ||
426 | fp->un.fmt7.wb2a, fp->un.fmt7.wb3a, | ||
427 | fp->un.fmt7.wb2d, fp->un.fmt7.wb3d); | ||
428 | #endif | ||
429 | |||
430 | if (ssw & ATC_040) { | ||
431 | unsigned long addr = fp->un.fmt7.faddr; | ||
432 | unsigned long errorcode; | ||
433 | |||
434 | /* | ||
435 | * The MMU status has to be determined AFTER the address | ||
436 | * has been corrected if there was a misaligned access (MA). | ||
437 | */ | ||
438 | if (ssw & MA_040) | ||
439 | addr = (addr + 7) & -8; | ||
440 | |||
441 | /* MMU error, get the MMUSR info for this access */ | ||
442 | mmusr = probe040(!(ssw & RW_040), addr, ssw); | ||
443 | #ifdef DEBUG | ||
444 | printk("mmusr = %lx\n", mmusr); | ||
445 | #endif | ||
446 | errorcode = 1; | ||
447 | if (!(mmusr & MMU_R_040)) { | ||
448 | /* clear the invalid atc entry */ | ||
449 | __flush_tlb040_one(addr); | ||
450 | errorcode = 0; | ||
451 | } | ||
452 | |||
453 | /* despite what documentation seems to say, RMW | ||
454 | * accesses have always both the LK and RW bits set */ | ||
455 | if (!(ssw & RW_040) || (ssw & LK_040)) | ||
456 | errorcode |= 2; | ||
457 | |||
458 | if (do_page_fault(&fp->ptregs, addr, errorcode)) { | ||
459 | #ifdef DEBUG | ||
460 | printk("do_page_fault() !=0\n"); | ||
461 | #endif | ||
462 | if (user_mode(&fp->ptregs)){ | ||
463 | /* delay writebacks after signal delivery */ | ||
464 | #ifdef DEBUG | ||
465 | printk(".. was usermode - return\n"); | ||
466 | #endif | ||
467 | return; | ||
468 | } | ||
469 | /* disable writeback into user space from kernel | ||
470 | * (if do_page_fault didn't fix the mapping, | ||
471 | * the writeback won't do good) | ||
472 | */ | ||
473 | disable_wb: | ||
474 | #ifdef DEBUG | ||
475 | printk(".. disabling wb2\n"); | ||
476 | #endif | ||
477 | if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr) | ||
478 | fp->un.fmt7.wb2s &= ~WBV_040; | ||
479 | if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr) | ||
480 | fp->un.fmt7.wb3s &= ~WBV_040; | ||
481 | } | ||
482 | } else { | ||
483 | /* In case of a bus error we either kill the process or expect | ||
484 | * the kernel to catch the fault, which then is also responsible | ||
485 | * for cleaning up the mess. | ||
486 | */ | ||
487 | current->thread.signo = SIGBUS; | ||
488 | current->thread.faddr = fp->un.fmt7.faddr; | ||
489 | if (send_fault_sig(&fp->ptregs) >= 0) | ||
490 | printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw, | ||
491 | fp->un.fmt7.faddr); | ||
492 | goto disable_wb; | ||
493 | } | ||
494 | |||
495 | do_040writebacks(fp); | ||
496 | } | ||
497 | #endif /* CONFIG_M68040 */ | ||
498 | |||
499 | #if defined(CONFIG_SUN3) | ||
500 | #include <asm/sun3mmu.h> | ||
501 | |||
502 | extern int mmu_emu_handle_fault (unsigned long, int, int); | ||
503 | |||
504 | /* sun3 version of bus_error030 */ | ||
505 | |||
506 | static inline void bus_error030 (struct frame *fp) | ||
507 | { | ||
508 | unsigned char buserr_type = sun3_get_buserr (); | ||
509 | unsigned long addr, errorcode; | ||
510 | unsigned short ssw = fp->un.fmtb.ssw; | ||
511 | extern unsigned long _sun3_map_test_start, _sun3_map_test_end; | ||
512 | |||
513 | #ifdef DEBUG | ||
514 | if (ssw & (FC | FB)) | ||
515 | printk ("Instruction fault at %#010lx\n", | ||
516 | ssw & FC ? | ||
517 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 | ||
518 | : | ||
519 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); | ||
520 | if (ssw & DF) | ||
521 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
522 | ssw & RW ? "read" : "write", | ||
523 | fp->un.fmtb.daddr, | ||
524 | space_names[ssw & DFC], fp->ptregs.pc); | ||
525 | #endif | ||
526 | |||
527 | /* | ||
528 | * Check if this page should be demand-mapped. This needs to go before | ||
529 | * the testing for a bad kernel-space access (demand-mapping applies | ||
530 | * to kernel accesses too). | ||
531 | */ | ||
532 | |||
533 | if ((ssw & DF) | ||
534 | && (buserr_type & (SUN3_BUSERR_PROTERR | SUN3_BUSERR_INVALID))) { | ||
535 | if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 0)) | ||
536 | return; | ||
537 | } | ||
538 | |||
539 | /* Check for kernel-space pagefault (BAD). */ | ||
540 | if (fp->ptregs.sr & PS_S) { | ||
541 | /* kernel fault must be a data fault to user space */ | ||
542 | if (! ((ssw & DF) && ((ssw & DFC) == USER_DATA))) { | ||
543 | // try checking the kernel mappings before surrender | ||
544 | if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 1)) | ||
545 | return; | ||
546 | /* instruction fault or kernel data fault! */ | ||
547 | if (ssw & (FC | FB)) | ||
548 | printk ("Instruction fault at %#010lx\n", | ||
549 | fp->ptregs.pc); | ||
550 | if (ssw & DF) { | ||
551 | /* was this fault incurred testing bus mappings? */ | ||
552 | if((fp->ptregs.pc >= (unsigned long)&_sun3_map_test_start) && | ||
553 | (fp->ptregs.pc <= (unsigned long)&_sun3_map_test_end)) { | ||
554 | send_fault_sig(&fp->ptregs); | ||
555 | return; | ||
556 | } | ||
557 | |||
558 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
559 | ssw & RW ? "read" : "write", | ||
560 | fp->un.fmtb.daddr, | ||
561 | space_names[ssw & DFC], fp->ptregs.pc); | ||
562 | } | ||
563 | printk ("BAD KERNEL BUSERR\n"); | ||
564 | |||
565 | die_if_kernel("Oops", &fp->ptregs,0); | ||
566 | force_sig(SIGKILL, current); | ||
567 | return; | ||
568 | } | ||
569 | } else { | ||
570 | /* user fault */ | ||
571 | if (!(ssw & (FC | FB)) && !(ssw & DF)) | ||
572 | /* not an instruction fault or data fault! BAD */ | ||
573 | panic ("USER BUSERR w/o instruction or data fault"); | ||
574 | } | ||
575 | |||
576 | |||
577 | /* First handle the data fault, if any. */ | ||
578 | if (ssw & DF) { | ||
579 | addr = fp->un.fmtb.daddr; | ||
580 | |||
581 | // errorcode bit 0: 0 -> no page 1 -> protection fault | ||
582 | // errorcode bit 1: 0 -> read fault 1 -> write fault | ||
583 | |||
584 | // (buserr_type & SUN3_BUSERR_PROTERR) -> protection fault | ||
585 | // (buserr_type & SUN3_BUSERR_INVALID) -> invalid page fault | ||
586 | |||
587 | if (buserr_type & SUN3_BUSERR_PROTERR) | ||
588 | errorcode = 0x01; | ||
589 | else if (buserr_type & SUN3_BUSERR_INVALID) | ||
590 | errorcode = 0x00; | ||
591 | else { | ||
592 | #ifdef DEBUG | ||
593 | printk ("*** unexpected busfault type=%#04x\n", buserr_type); | ||
594 | printk ("invalid %s access at %#lx from pc %#lx\n", | ||
595 | !(ssw & RW) ? "write" : "read", addr, | ||
596 | fp->ptregs.pc); | ||
597 | #endif | ||
598 | die_if_kernel ("Oops", &fp->ptregs, buserr_type); | ||
599 | force_sig (SIGBUS, current); | ||
600 | return; | ||
601 | } | ||
602 | |||
603 | //todo: wtf is RM bit? --m | ||
604 | if (!(ssw & RW) || ssw & RM) | ||
605 | errorcode |= 0x02; | ||
606 | |||
607 | /* Handle page fault. */ | ||
608 | do_page_fault (&fp->ptregs, addr, errorcode); | ||
609 | |||
610 | /* Retry the data fault now. */ | ||
611 | return; | ||
612 | } | ||
613 | |||
614 | /* Now handle the instruction fault. */ | ||
615 | |||
616 | /* Get the fault address. */ | ||
617 | if (fp->ptregs.format == 0xA) | ||
618 | addr = fp->ptregs.pc + 4; | ||
619 | else | ||
620 | addr = fp->un.fmtb.baddr; | ||
621 | if (ssw & FC) | ||
622 | addr -= 2; | ||
623 | |||
624 | if (buserr_type & SUN3_BUSERR_INVALID) { | ||
625 | if (!mmu_emu_handle_fault (fp->un.fmtb.daddr, 1, 0)) | ||
626 | do_page_fault (&fp->ptregs, addr, 0); | ||
627 | } else { | ||
628 | #ifdef DEBUG | ||
629 | printk ("protection fault on insn access (segv).\n"); | ||
630 | #endif | ||
631 | force_sig (SIGSEGV, current); | ||
632 | } | ||
633 | } | ||
634 | #else | ||
635 | #if defined(CPU_M68020_OR_M68030) | ||
636 | static inline void bus_error030 (struct frame *fp) | ||
637 | { | ||
638 | volatile unsigned short temp; | ||
639 | unsigned short mmusr; | ||
640 | unsigned long addr, errorcode; | ||
641 | unsigned short ssw = fp->un.fmtb.ssw; | ||
642 | #ifdef DEBUG | ||
643 | unsigned long desc; | ||
644 | |||
645 | printk ("pid = %x ", current->pid); | ||
646 | printk ("SSW=%#06x ", ssw); | ||
647 | |||
648 | if (ssw & (FC | FB)) | ||
649 | printk ("Instruction fault at %#010lx\n", | ||
650 | ssw & FC ? | ||
651 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 | ||
652 | : | ||
653 | fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); | ||
654 | if (ssw & DF) | ||
655 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
656 | ssw & RW ? "read" : "write", | ||
657 | fp->un.fmtb.daddr, | ||
658 | space_names[ssw & DFC], fp->ptregs.pc); | ||
659 | #endif | ||
660 | |||
661 | /* ++andreas: If a data fault and an instruction fault happen | ||
662 | at the same time map in both pages. */ | ||
663 | |||
664 | /* First handle the data fault, if any. */ | ||
665 | if (ssw & DF) { | ||
666 | addr = fp->un.fmtb.daddr; | ||
667 | |||
668 | #ifdef DEBUG | ||
669 | asm volatile ("ptestr %3,%2@,#7,%0\n\t" | ||
670 | "pmove %%psr,%1@" | ||
671 | : "=a&" (desc) | ||
672 | : "a" (&temp), "a" (addr), "d" (ssw)); | ||
673 | #else | ||
674 | asm volatile ("ptestr %2,%1@,#7\n\t" | ||
675 | "pmove %%psr,%0@" | ||
676 | : : "a" (&temp), "a" (addr), "d" (ssw)); | ||
677 | #endif | ||
678 | mmusr = temp; | ||
679 | |||
680 | #ifdef DEBUG | ||
681 | printk("mmusr is %#x for addr %#lx in task %p\n", | ||
682 | mmusr, addr, current); | ||
683 | printk("descriptor address is %#lx, contents %#lx\n", | ||
684 | __va(desc), *(unsigned long *)__va(desc)); | ||
685 | #endif | ||
686 | |||
687 | errorcode = (mmusr & MMU_I) ? 0 : 1; | ||
688 | if (!(ssw & RW) || (ssw & RM)) | ||
689 | errorcode |= 2; | ||
690 | |||
691 | if (mmusr & (MMU_I | MMU_WP)) { | ||
692 | if (ssw & 4) { | ||
693 | printk("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
694 | ssw & RW ? "read" : "write", | ||
695 | fp->un.fmtb.daddr, | ||
696 | space_names[ssw & DFC], fp->ptregs.pc); | ||
697 | goto buserr; | ||
698 | } | ||
699 | /* Don't try to do anything further if an exception was | ||
700 | handled. */ | ||
701 | if (do_page_fault (&fp->ptregs, addr, errorcode) < 0) | ||
702 | return; | ||
703 | } else if (!(mmusr & MMU_I)) { | ||
704 | /* probably a 020 cas fault */ | ||
705 | if (!(ssw & RM) && send_fault_sig(&fp->ptregs) > 0) | ||
706 | printk("unexpected bus error (%#x,%#x)\n", ssw, mmusr); | ||
707 | } else if (mmusr & (MMU_B|MMU_L|MMU_S)) { | ||
708 | printk("invalid %s access at %#lx from pc %#lx\n", | ||
709 | !(ssw & RW) ? "write" : "read", addr, | ||
710 | fp->ptregs.pc); | ||
711 | die_if_kernel("Oops",&fp->ptregs,mmusr); | ||
712 | force_sig(SIGSEGV, current); | ||
713 | return; | ||
714 | } else { | ||
715 | #if 0 | ||
716 | static volatile long tlong; | ||
717 | #endif | ||
718 | |||
719 | printk("weird %s access at %#lx from pc %#lx (ssw is %#x)\n", | ||
720 | !(ssw & RW) ? "write" : "read", addr, | ||
721 | fp->ptregs.pc, ssw); | ||
722 | asm volatile ("ptestr #1,%1@,#0\n\t" | ||
723 | "pmove %%psr,%0@" | ||
724 | : /* no outputs */ | ||
725 | : "a" (&temp), "a" (addr)); | ||
726 | mmusr = temp; | ||
727 | |||
728 | printk ("level 0 mmusr is %#x\n", mmusr); | ||
729 | #if 0 | ||
730 | asm volatile ("pmove %%tt0,%0@" | ||
731 | : /* no outputs */ | ||
732 | : "a" (&tlong)); | ||
733 | printk("tt0 is %#lx, ", tlong); | ||
734 | asm volatile ("pmove %%tt1,%0@" | ||
735 | : /* no outputs */ | ||
736 | : "a" (&tlong)); | ||
737 | printk("tt1 is %#lx\n", tlong); | ||
738 | #endif | ||
739 | #ifdef DEBUG | ||
740 | printk("Unknown SIGSEGV - 1\n"); | ||
741 | #endif | ||
742 | die_if_kernel("Oops",&fp->ptregs,mmusr); | ||
743 | force_sig(SIGSEGV, current); | ||
744 | return; | ||
745 | } | ||
746 | |||
747 | /* setup an ATC entry for the access about to be retried */ | ||
748 | if (!(ssw & RW) || (ssw & RM)) | ||
749 | asm volatile ("ploadw %1,%0@" : /* no outputs */ | ||
750 | : "a" (addr), "d" (ssw)); | ||
751 | else | ||
752 | asm volatile ("ploadr %1,%0@" : /* no outputs */ | ||
753 | : "a" (addr), "d" (ssw)); | ||
754 | } | ||
755 | |||
756 | /* Now handle the instruction fault. */ | ||
757 | |||
758 | if (!(ssw & (FC|FB))) | ||
759 | return; | ||
760 | |||
761 | if (fp->ptregs.sr & PS_S) { | ||
762 | printk("Instruction fault at %#010lx\n", | ||
763 | fp->ptregs.pc); | ||
764 | buserr: | ||
765 | printk ("BAD KERNEL BUSERR\n"); | ||
766 | die_if_kernel("Oops",&fp->ptregs,0); | ||
767 | force_sig(SIGKILL, current); | ||
768 | return; | ||
769 | } | ||
770 | |||
771 | /* get the fault address */ | ||
772 | if (fp->ptregs.format == 10) | ||
773 | addr = fp->ptregs.pc + 4; | ||
774 | else | ||
775 | addr = fp->un.fmtb.baddr; | ||
776 | if (ssw & FC) | ||
777 | addr -= 2; | ||
778 | |||
779 | if ((ssw & DF) && ((addr ^ fp->un.fmtb.daddr) & PAGE_MASK) == 0) | ||
780 | /* Insn fault on same page as data fault. But we | ||
781 | should still create the ATC entry. */ | ||
782 | goto create_atc_entry; | ||
783 | |||
784 | #ifdef DEBUG | ||
785 | asm volatile ("ptestr #1,%2@,#7,%0\n\t" | ||
786 | "pmove %%psr,%1@" | ||
787 | : "=a&" (desc) | ||
788 | : "a" (&temp), "a" (addr)); | ||
789 | #else | ||
790 | asm volatile ("ptestr #1,%1@,#7\n\t" | ||
791 | "pmove %%psr,%0@" | ||
792 | : : "a" (&temp), "a" (addr)); | ||
793 | #endif | ||
794 | mmusr = temp; | ||
795 | |||
796 | #ifdef DEBUG | ||
797 | printk ("mmusr is %#x for addr %#lx in task %p\n", | ||
798 | mmusr, addr, current); | ||
799 | printk ("descriptor address is %#lx, contents %#lx\n", | ||
800 | __va(desc), *(unsigned long *)__va(desc)); | ||
801 | #endif | ||
802 | |||
803 | if (mmusr & MMU_I) | ||
804 | do_page_fault (&fp->ptregs, addr, 0); | ||
805 | else if (mmusr & (MMU_B|MMU_L|MMU_S)) { | ||
806 | printk ("invalid insn access at %#lx from pc %#lx\n", | ||
807 | addr, fp->ptregs.pc); | ||
808 | #ifdef DEBUG | ||
809 | printk("Unknown SIGSEGV - 2\n"); | ||
810 | #endif | ||
811 | die_if_kernel("Oops",&fp->ptregs,mmusr); | ||
812 | force_sig(SIGSEGV, current); | ||
813 | return; | ||
814 | } | ||
815 | |||
816 | create_atc_entry: | ||
817 | /* setup an ATC entry for the access about to be retried */ | ||
818 | asm volatile ("ploadr #2,%0@" : /* no outputs */ | ||
819 | : "a" (addr)); | ||
820 | } | ||
821 | #endif /* CPU_M68020_OR_M68030 */ | ||
822 | #endif /* !CONFIG_SUN3 */ | ||
823 | |||
824 | asmlinkage void buserr_c(struct frame *fp) | ||
825 | { | ||
826 | /* Only set esp0 if coming from user mode */ | ||
827 | if (user_mode(&fp->ptregs)) | ||
828 | current->thread.esp0 = (unsigned long) fp; | ||
829 | |||
830 | #ifdef DEBUG | ||
831 | printk ("*** Bus Error *** Format is %x\n", fp->ptregs.format); | ||
832 | #endif | ||
833 | |||
834 | switch (fp->ptregs.format) { | ||
835 | #if defined (CONFIG_M68060) | ||
836 | case 4: /* 68060 access error */ | ||
837 | access_error060 (fp); | ||
838 | break; | ||
839 | #endif | ||
840 | #if defined (CONFIG_M68040) | ||
841 | case 0x7: /* 68040 access error */ | ||
842 | access_error040 (fp); | ||
843 | break; | ||
844 | #endif | ||
845 | #if defined (CPU_M68020_OR_M68030) | ||
846 | case 0xa: | ||
847 | case 0xb: | ||
848 | bus_error030 (fp); | ||
849 | break; | ||
850 | #endif | ||
851 | default: | ||
852 | die_if_kernel("bad frame format",&fp->ptregs,0); | ||
853 | #ifdef DEBUG | ||
854 | printk("Unknown SIGSEGV - 4\n"); | ||
855 | #endif | ||
856 | force_sig(SIGSEGV, current); | ||
857 | } | ||
858 | } | ||
859 | |||
860 | |||
861 | static int kstack_depth_to_print = 48; | ||
862 | |||
863 | void show_trace(unsigned long *stack) | ||
864 | { | ||
865 | unsigned long *endstack; | ||
866 | unsigned long addr; | ||
867 | int i; | ||
868 | |||
869 | printk("Call Trace:"); | ||
870 | addr = (unsigned long)stack + THREAD_SIZE - 1; | ||
871 | endstack = (unsigned long *)(addr & -THREAD_SIZE); | ||
872 | i = 0; | ||
873 | while (stack + 1 <= endstack) { | ||
874 | addr = *stack++; | ||
875 | /* | ||
876 | * If the address is either in the text segment of the | ||
877 | * kernel, or in the region which contains vmalloc'ed | ||
878 | * memory, it *may* be the address of a calling | ||
879 | * routine; if so, print it so that someone tracing | ||
880 | * down the cause of the crash will be able to figure | ||
881 | * out the call path that was taken. | ||
882 | */ | ||
883 | if (__kernel_text_address(addr)) { | ||
884 | #ifndef CONFIG_KALLSYMS | ||
885 | if (i % 5 == 0) | ||
886 | printk("\n "); | ||
887 | #endif | ||
888 | printk(" [<%08lx>] %pS\n", addr, (void *)addr); | ||
889 | i++; | ||
890 | } | ||
891 | } | ||
892 | printk("\n"); | ||
893 | } | ||
894 | |||
895 | void show_registers(struct pt_regs *regs) | ||
896 | { | ||
897 | struct frame *fp = (struct frame *)regs; | ||
898 | mm_segment_t old_fs = get_fs(); | ||
899 | u16 c, *cp; | ||
900 | unsigned long addr; | ||
901 | int i; | ||
902 | |||
903 | print_modules(); | ||
904 | printk("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc); | ||
905 | printk("SR: %04x SP: %p a2: %08lx\n", regs->sr, regs, regs->a2); | ||
906 | printk("d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", | ||
907 | regs->d0, regs->d1, regs->d2, regs->d3); | ||
908 | printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", | ||
909 | regs->d4, regs->d5, regs->a0, regs->a1); | ||
910 | |||
911 | printk("Process %s (pid: %d, task=%p)\n", | ||
912 | current->comm, task_pid_nr(current), current); | ||
913 | addr = (unsigned long)&fp->un; | ||
914 | printk("Frame format=%X ", regs->format); | ||
915 | switch (regs->format) { | ||
916 | case 0x2: | ||
917 | printk("instr addr=%08lx\n", fp->un.fmt2.iaddr); | ||
918 | addr += sizeof(fp->un.fmt2); | ||
919 | break; | ||
920 | case 0x3: | ||
921 | printk("eff addr=%08lx\n", fp->un.fmt3.effaddr); | ||
922 | addr += sizeof(fp->un.fmt3); | ||
923 | break; | ||
924 | case 0x4: | ||
925 | printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n" | ||
926 | : "eff addr=%08lx pc=%08lx\n"), | ||
927 | fp->un.fmt4.effaddr, fp->un.fmt4.pc); | ||
928 | addr += sizeof(fp->un.fmt4); | ||
929 | break; | ||
930 | case 0x7: | ||
931 | printk("eff addr=%08lx ssw=%04x faddr=%08lx\n", | ||
932 | fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr); | ||
933 | printk("wb 1 stat/addr/data: %04x %08lx %08lx\n", | ||
934 | fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0); | ||
935 | printk("wb 2 stat/addr/data: %04x %08lx %08lx\n", | ||
936 | fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d); | ||
937 | printk("wb 3 stat/addr/data: %04x %08lx %08lx\n", | ||
938 | fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d); | ||
939 | printk("push data: %08lx %08lx %08lx %08lx\n", | ||
940 | fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2, | ||
941 | fp->un.fmt7.pd3); | ||
942 | addr += sizeof(fp->un.fmt7); | ||
943 | break; | ||
944 | case 0x9: | ||
945 | printk("instr addr=%08lx\n", fp->un.fmt9.iaddr); | ||
946 | addr += sizeof(fp->un.fmt9); | ||
947 | break; | ||
948 | case 0xa: | ||
949 | printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", | ||
950 | fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb, | ||
951 | fp->un.fmta.daddr, fp->un.fmta.dobuf); | ||
952 | addr += sizeof(fp->un.fmta); | ||
953 | break; | ||
954 | case 0xb: | ||
955 | printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", | ||
956 | fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb, | ||
957 | fp->un.fmtb.daddr, fp->un.fmtb.dobuf); | ||
958 | printk("baddr=%08lx dibuf=%08lx ver=%x\n", | ||
959 | fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver); | ||
960 | addr += sizeof(fp->un.fmtb); | ||
961 | break; | ||
962 | default: | ||
963 | printk("\n"); | ||
964 | } | ||
965 | show_stack(NULL, (unsigned long *)addr); | ||
966 | |||
967 | printk("Code:"); | ||
968 | set_fs(KERNEL_DS); | ||
969 | cp = (u16 *)regs->pc; | ||
970 | for (i = -8; i < 16; i++) { | ||
971 | if (get_user(c, cp + i) && i >= 0) { | ||
972 | printk(" Bad PC value."); | ||
973 | break; | ||
974 | } | ||
975 | printk(i ? " %04x" : " <%04x>", c); | ||
976 | } | ||
977 | set_fs(old_fs); | ||
978 | printk ("\n"); | ||
979 | } | ||
980 | |||
981 | void show_stack(struct task_struct *task, unsigned long *stack) | ||
982 | { | ||
983 | unsigned long *p; | ||
984 | unsigned long *endstack; | ||
985 | int i; | ||
986 | |||
987 | if (!stack) { | ||
988 | if (task) | ||
989 | stack = (unsigned long *)task->thread.esp0; | ||
990 | else | ||
991 | stack = (unsigned long *)&stack; | ||
992 | } | ||
993 | endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1) & -THREAD_SIZE); | ||
994 | |||
995 | printk("Stack from %08lx:", (unsigned long)stack); | ||
996 | p = stack; | ||
997 | for (i = 0; i < kstack_depth_to_print; i++) { | ||
998 | if (p + 1 > endstack) | ||
999 | break; | ||
1000 | if (i % 8 == 0) | ||
1001 | printk("\n "); | ||
1002 | printk(" %08lx", *p++); | ||
1003 | } | ||
1004 | printk("\n"); | ||
1005 | show_trace(stack); | ||
1006 | } | ||
1007 | |||
1008 | /* | ||
1009 | * The architecture-independent backtrace generator | ||
1010 | */ | ||
1011 | void dump_stack(void) | ||
1012 | { | ||
1013 | unsigned long stack; | ||
1014 | |||
1015 | show_trace(&stack); | ||
1016 | } | ||
1017 | |||
1018 | EXPORT_SYMBOL(dump_stack); | ||
1019 | |||
1020 | void bad_super_trap (struct frame *fp) | ||
1021 | { | ||
1022 | console_verbose(); | ||
1023 | if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names)) | ||
1024 | printk ("*** %s *** FORMAT=%X\n", | ||
1025 | vec_names[(fp->ptregs.vector) >> 2], | ||
1026 | fp->ptregs.format); | ||
1027 | else | ||
1028 | printk ("*** Exception %d *** FORMAT=%X\n", | ||
1029 | (fp->ptregs.vector) >> 2, | ||
1030 | fp->ptregs.format); | ||
1031 | if (fp->ptregs.vector >> 2 == VEC_ADDRERR && CPU_IS_020_OR_030) { | ||
1032 | unsigned short ssw = fp->un.fmtb.ssw; | ||
1033 | |||
1034 | printk ("SSW=%#06x ", ssw); | ||
1035 | |||
1036 | if (ssw & RC) | ||
1037 | printk ("Pipe stage C instruction fault at %#010lx\n", | ||
1038 | (fp->ptregs.format) == 0xA ? | ||
1039 | fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2); | ||
1040 | if (ssw & RB) | ||
1041 | printk ("Pipe stage B instruction fault at %#010lx\n", | ||
1042 | (fp->ptregs.format) == 0xA ? | ||
1043 | fp->ptregs.pc + 4 : fp->un.fmtb.baddr); | ||
1044 | if (ssw & DF) | ||
1045 | printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", | ||
1046 | ssw & RW ? "read" : "write", | ||
1047 | fp->un.fmtb.daddr, space_names[ssw & DFC], | ||
1048 | fp->ptregs.pc); | ||
1049 | } | ||
1050 | printk ("Current process id is %d\n", task_pid_nr(current)); | ||
1051 | die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); | ||
1052 | } | ||
1053 | |||
1054 | asmlinkage void trap_c(struct frame *fp) | ||
1055 | { | ||
1056 | int sig; | ||
1057 | siginfo_t info; | ||
1058 | |||
1059 | if (fp->ptregs.sr & PS_S) { | ||
1060 | if (fp->ptregs.vector == VEC_TRACE << 2) { | ||
1061 | /* traced a trapping instruction on a 68020/30, | ||
1062 | * real exception will be executed afterwards. | ||
1063 | */ | ||
1064 | } else if (!handle_kernel_fault(&fp->ptregs)) | ||
1065 | bad_super_trap(fp); | ||
1066 | return; | ||
1067 | } | ||
1068 | |||
1069 | /* send the appropriate signal to the user program */ | ||
1070 | switch ((fp->ptregs.vector) >> 2) { | ||
1071 | case VEC_ADDRERR: | ||
1072 | info.si_code = BUS_ADRALN; | ||
1073 | sig = SIGBUS; | ||
1074 | break; | ||
1075 | case VEC_ILLEGAL: | ||
1076 | case VEC_LINE10: | ||
1077 | case VEC_LINE11: | ||
1078 | info.si_code = ILL_ILLOPC; | ||
1079 | sig = SIGILL; | ||
1080 | break; | ||
1081 | case VEC_PRIV: | ||
1082 | info.si_code = ILL_PRVOPC; | ||
1083 | sig = SIGILL; | ||
1084 | break; | ||
1085 | case VEC_COPROC: | ||
1086 | info.si_code = ILL_COPROC; | ||
1087 | sig = SIGILL; | ||
1088 | break; | ||
1089 | case VEC_TRAP1: | ||
1090 | case VEC_TRAP2: | ||
1091 | case VEC_TRAP3: | ||
1092 | case VEC_TRAP4: | ||
1093 | case VEC_TRAP5: | ||
1094 | case VEC_TRAP6: | ||
1095 | case VEC_TRAP7: | ||
1096 | case VEC_TRAP8: | ||
1097 | case VEC_TRAP9: | ||
1098 | case VEC_TRAP10: | ||
1099 | case VEC_TRAP11: | ||
1100 | case VEC_TRAP12: | ||
1101 | case VEC_TRAP13: | ||
1102 | case VEC_TRAP14: | ||
1103 | info.si_code = ILL_ILLTRP; | ||
1104 | sig = SIGILL; | ||
1105 | break; | ||
1106 | case VEC_FPBRUC: | ||
1107 | case VEC_FPOE: | ||
1108 | case VEC_FPNAN: | ||
1109 | info.si_code = FPE_FLTINV; | ||
1110 | sig = SIGFPE; | ||
1111 | break; | ||
1112 | case VEC_FPIR: | ||
1113 | info.si_code = FPE_FLTRES; | ||
1114 | sig = SIGFPE; | ||
1115 | break; | ||
1116 | case VEC_FPDIVZ: | ||
1117 | info.si_code = FPE_FLTDIV; | ||
1118 | sig = SIGFPE; | ||
1119 | break; | ||
1120 | case VEC_FPUNDER: | ||
1121 | info.si_code = FPE_FLTUND; | ||
1122 | sig = SIGFPE; | ||
1123 | break; | ||
1124 | case VEC_FPOVER: | ||
1125 | info.si_code = FPE_FLTOVF; | ||
1126 | sig = SIGFPE; | ||
1127 | break; | ||
1128 | case VEC_ZERODIV: | ||
1129 | info.si_code = FPE_INTDIV; | ||
1130 | sig = SIGFPE; | ||
1131 | break; | ||
1132 | case VEC_CHK: | ||
1133 | case VEC_TRAP: | ||
1134 | info.si_code = FPE_INTOVF; | ||
1135 | sig = SIGFPE; | ||
1136 | break; | ||
1137 | case VEC_TRACE: /* ptrace single step */ | ||
1138 | info.si_code = TRAP_TRACE; | ||
1139 | sig = SIGTRAP; | ||
1140 | break; | ||
1141 | case VEC_TRAP15: /* breakpoint */ | ||
1142 | info.si_code = TRAP_BRKPT; | ||
1143 | sig = SIGTRAP; | ||
1144 | break; | ||
1145 | default: | ||
1146 | info.si_code = ILL_ILLOPC; | ||
1147 | sig = SIGILL; | ||
1148 | break; | ||
1149 | } | ||
1150 | info.si_signo = sig; | ||
1151 | info.si_errno = 0; | ||
1152 | switch (fp->ptregs.format) { | ||
1153 | default: | ||
1154 | info.si_addr = (void *) fp->ptregs.pc; | ||
1155 | break; | ||
1156 | case 2: | ||
1157 | info.si_addr = (void *) fp->un.fmt2.iaddr; | ||
1158 | break; | ||
1159 | case 7: | ||
1160 | info.si_addr = (void *) fp->un.fmt7.effaddr; | ||
1161 | break; | ||
1162 | case 9: | ||
1163 | info.si_addr = (void *) fp->un.fmt9.iaddr; | ||
1164 | break; | ||
1165 | case 10: | ||
1166 | info.si_addr = (void *) fp->un.fmta.daddr; | ||
1167 | break; | ||
1168 | case 11: | ||
1169 | info.si_addr = (void *) fp->un.fmtb.daddr; | ||
1170 | break; | ||
1171 | } | ||
1172 | force_sig_info (sig, &info, current); | ||
1173 | } | ||
1174 | |||
1175 | void die_if_kernel (char *str, struct pt_regs *fp, int nr) | ||
1176 | { | ||
1177 | if (!(fp->sr & PS_S)) | ||
1178 | return; | ||
1179 | |||
1180 | console_verbose(); | ||
1181 | printk("%s: %08x\n",str,nr); | ||
1182 | show_registers(fp); | ||
1183 | add_taint(TAINT_DIE); | ||
1184 | do_exit(SIGSEGV); | ||
1185 | } | ||
1186 | |||
1187 | /* | ||
1188 | * This function is called if an error occur while accessing | ||
1189 | * user-space from the fpsp040 code. | ||
1190 | */ | ||
1191 | asmlinkage void fpsp040_die(void) | ||
1192 | { | ||
1193 | do_exit(SIGSEGV); | ||
1194 | } | ||
1195 | |||
1196 | #ifdef CONFIG_M68KFPU_EMU | ||
1197 | asmlinkage void fpemu_signal(int signal, int code, void *addr) | ||
1198 | { | ||
1199 | siginfo_t info; | ||
1200 | |||
1201 | info.si_signo = signal; | ||
1202 | info.si_errno = 0; | ||
1203 | info.si_code = code; | ||
1204 | info.si_addr = addr; | ||
1205 | force_sig_info(signal, &info, current); | ||
1206 | } | ||
1207 | #endif | ||
diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68k/kernel/traps_no.c index a768008dfd06..a768008dfd06 100644 --- a/arch/m68knommu/kernel/traps.c +++ b/arch/m68k/kernel/traps_no.c | |||
diff --git a/arch/m68k/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds.S index 99ba315bd0a8..030dabf0bc53 100644 --- a/arch/m68k/kernel/vmlinux.lds.S +++ b/arch/m68k/kernel/vmlinux.lds.S | |||
@@ -1,10 +1,5 @@ | |||
1 | PHDRS | 1 | #ifdef CONFIG_MMU |
2 | { | 2 | #include "vmlinux.lds_mm.S" |
3 | text PT_LOAD FILEHDR PHDRS FLAGS (7); | ||
4 | data PT_LOAD FLAGS (7); | ||
5 | } | ||
6 | #ifdef CONFIG_SUN3 | ||
7 | #include "vmlinux-sun3.lds" | ||
8 | #else | 3 | #else |
9 | #include "vmlinux-std.lds" | 4 | #include "vmlinux.lds_no.S" |
10 | #endif | 5 | #endif |
diff --git a/arch/m68k/kernel/vmlinux.lds_mm.S b/arch/m68k/kernel/vmlinux.lds_mm.S new file mode 100644 index 000000000000..99ba315bd0a8 --- /dev/null +++ b/arch/m68k/kernel/vmlinux.lds_mm.S | |||
@@ -0,0 +1,10 @@ | |||
1 | PHDRS | ||
2 | { | ||
3 | text PT_LOAD FILEHDR PHDRS FLAGS (7); | ||
4 | data PT_LOAD FLAGS (7); | ||
5 | } | ||
6 | #ifdef CONFIG_SUN3 | ||
7 | #include "vmlinux-sun3.lds" | ||
8 | #else | ||
9 | #include "vmlinux-std.lds" | ||
10 | #endif | ||
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds_no.S index 47e15ebfd893..47e15ebfd893 100644 --- a/arch/m68knommu/kernel/vmlinux.lds.S +++ b/arch/m68k/kernel/vmlinux.lds_no.S | |||
diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile index af9abf8d9d98..1f95881d8437 100644 --- a/arch/m68k/lib/Makefile +++ b/arch/m68k/lib/Makefile | |||
@@ -1,6 +1,5 @@ | |||
1 | # | 1 | ifdef CONFIG_MMU |
2 | # Makefile for m68k-specific library files.. | 2 | include arch/m68k/lib/Makefile_mm |
3 | # | 3 | else |
4 | 4 | include arch/m68k/lib/Makefile_no | |
5 | lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ | 5 | endif |
6 | checksum.o string.o uaccess.o | ||
diff --git a/arch/m68k/lib/Makefile_mm b/arch/m68k/lib/Makefile_mm new file mode 100644 index 000000000000..af9abf8d9d98 --- /dev/null +++ b/arch/m68k/lib/Makefile_mm | |||
@@ -0,0 +1,6 @@ | |||
1 | # | ||
2 | # Makefile for m68k-specific library files.. | ||
3 | # | ||
4 | |||
5 | lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ | ||
6 | checksum.o string.o uaccess.o | ||
diff --git a/arch/m68knommu/lib/Makefile b/arch/m68k/lib/Makefile_no index 32d852e586d7..32d852e586d7 100644 --- a/arch/m68knommu/lib/Makefile +++ b/arch/m68k/lib/Makefile_no | |||
diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c index 6216f12a756b..1297536060de 100644 --- a/arch/m68k/lib/checksum.c +++ b/arch/m68k/lib/checksum.c | |||
@@ -1,425 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX | 2 | #include "checksum_mm.c" |
3 | * operating system. INET is implemented using the BSD Socket | 3 | #else |
4 | * interface as the means of communication with the user level. | 4 | #include "checksum_no.c" |
5 | * | 5 | #endif |
6 | * IP/TCP/UDP checksumming routines | ||
7 | * | ||
8 | * Authors: Jorge Cwik, <jorge@laser.satlink.net> | ||
9 | * Arnt Gulbrandsen, <agulbra@nvg.unit.no> | ||
10 | * Tom May, <ftom@netcom.com> | ||
11 | * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> | ||
12 | * Lots of code moved from tcp.c and ip.c; see those files | ||
13 | * for more names. | ||
14 | * | ||
15 | * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: | ||
16 | * Fixed some nasty bugs, causing some horrible crashes. | ||
17 | * A: At some points, the sum (%0) was used as | ||
18 | * length-counter instead of the length counter | ||
19 | * (%1). Thanks to Roman Hodek for pointing this out. | ||
20 | * B: GCC seems to mess up if one uses too many | ||
21 | * data-registers to hold input values and one tries to | ||
22 | * specify d0 and d1 as scratch registers. Letting gcc | ||
23 | * choose these registers itself solves the problem. | ||
24 | * | ||
25 | * This program is free software; you can redistribute it and/or | ||
26 | * modify it under the terms of the GNU General Public License | ||
27 | * as published by the Free Software Foundation; either version | ||
28 | * 2 of the License, or (at your option) any later version. | ||
29 | * | ||
30 | * 1998/8/31 Andreas Schwab: | ||
31 | * Zero out rest of buffer on exception in | ||
32 | * csum_partial_copy_from_user. | ||
33 | */ | ||
34 | |||
35 | #include <linux/module.h> | ||
36 | #include <net/checksum.h> | ||
37 | |||
38 | /* | ||
39 | * computes a partial checksum, e.g. for TCP/UDP fragments | ||
40 | */ | ||
41 | |||
42 | __wsum csum_partial(const void *buff, int len, __wsum sum) | ||
43 | { | ||
44 | unsigned long tmp1, tmp2; | ||
45 | /* | ||
46 | * Experiments with ethernet and slip connections show that buff | ||
47 | * is aligned on either a 2-byte or 4-byte boundary. | ||
48 | */ | ||
49 | __asm__("movel %2,%3\n\t" | ||
50 | "btst #1,%3\n\t" /* Check alignment */ | ||
51 | "jeq 2f\n\t" | ||
52 | "subql #2,%1\n\t" /* buff%4==2: treat first word */ | ||
53 | "jgt 1f\n\t" | ||
54 | "addql #2,%1\n\t" /* len was == 2, treat only rest */ | ||
55 | "jra 4f\n" | ||
56 | "1:\t" | ||
57 | "addw %2@+,%0\n\t" /* add first word to sum */ | ||
58 | "clrl %3\n\t" | ||
59 | "addxl %3,%0\n" /* add X bit */ | ||
60 | "2:\t" | ||
61 | /* unrolled loop for the main part: do 8 longs at once */ | ||
62 | "movel %1,%3\n\t" /* save len in tmp1 */ | ||
63 | "lsrl #5,%1\n\t" /* len/32 */ | ||
64 | "jeq 2f\n\t" /* not enough... */ | ||
65 | "subql #1,%1\n" | ||
66 | "1:\t" | ||
67 | "movel %2@+,%4\n\t" | ||
68 | "addxl %4,%0\n\t" | ||
69 | "movel %2@+,%4\n\t" | ||
70 | "addxl %4,%0\n\t" | ||
71 | "movel %2@+,%4\n\t" | ||
72 | "addxl %4,%0\n\t" | ||
73 | "movel %2@+,%4\n\t" | ||
74 | "addxl %4,%0\n\t" | ||
75 | "movel %2@+,%4\n\t" | ||
76 | "addxl %4,%0\n\t" | ||
77 | "movel %2@+,%4\n\t" | ||
78 | "addxl %4,%0\n\t" | ||
79 | "movel %2@+,%4\n\t" | ||
80 | "addxl %4,%0\n\t" | ||
81 | "movel %2@+,%4\n\t" | ||
82 | "addxl %4,%0\n\t" | ||
83 | "dbra %1,1b\n\t" | ||
84 | "clrl %4\n\t" | ||
85 | "addxl %4,%0\n\t" /* add X bit */ | ||
86 | "clrw %1\n\t" | ||
87 | "subql #1,%1\n\t" | ||
88 | "jcc 1b\n" | ||
89 | "2:\t" | ||
90 | "movel %3,%1\n\t" /* restore len from tmp1 */ | ||
91 | "andw #0x1c,%3\n\t" /* number of rest longs */ | ||
92 | "jeq 4f\n\t" | ||
93 | "lsrw #2,%3\n\t" | ||
94 | "subqw #1,%3\n" | ||
95 | "3:\t" | ||
96 | /* loop for rest longs */ | ||
97 | "movel %2@+,%4\n\t" | ||
98 | "addxl %4,%0\n\t" | ||
99 | "dbra %3,3b\n\t" | ||
100 | "clrl %4\n\t" | ||
101 | "addxl %4,%0\n" /* add X bit */ | ||
102 | "4:\t" | ||
103 | /* now check for rest bytes that do not fit into longs */ | ||
104 | "andw #3,%1\n\t" | ||
105 | "jeq 7f\n\t" | ||
106 | "clrl %4\n\t" /* clear tmp2 for rest bytes */ | ||
107 | "subqw #2,%1\n\t" | ||
108 | "jlt 5f\n\t" | ||
109 | "movew %2@+,%4\n\t" /* have rest >= 2: get word */ | ||
110 | "swap %4\n\t" /* into bits 16..31 */ | ||
111 | "tstw %1\n\t" /* another byte? */ | ||
112 | "jeq 6f\n" | ||
113 | "5:\t" | ||
114 | "moveb %2@,%4\n\t" /* have odd rest: get byte */ | ||
115 | "lslw #8,%4\n\t" /* into bits 8..15; 16..31 untouched */ | ||
116 | "6:\t" | ||
117 | "addl %4,%0\n\t" /* now add rest long to sum */ | ||
118 | "clrl %4\n\t" | ||
119 | "addxl %4,%0\n" /* add X bit */ | ||
120 | "7:\t" | ||
121 | : "=d" (sum), "=d" (len), "=a" (buff), | ||
122 | "=&d" (tmp1), "=&d" (tmp2) | ||
123 | : "0" (sum), "1" (len), "2" (buff) | ||
124 | ); | ||
125 | return(sum); | ||
126 | } | ||
127 | |||
128 | EXPORT_SYMBOL(csum_partial); | ||
129 | |||
130 | |||
131 | /* | ||
132 | * copy from user space while checksumming, with exception handling. | ||
133 | */ | ||
134 | |||
135 | __wsum | ||
136 | csum_partial_copy_from_user(const void __user *src, void *dst, | ||
137 | int len, __wsum sum, int *csum_err) | ||
138 | { | ||
139 | /* | ||
140 | * GCC doesn't like more than 10 operands for the asm | ||
141 | * statements so we have to use tmp2 for the error | ||
142 | * code. | ||
143 | */ | ||
144 | unsigned long tmp1, tmp2; | ||
145 | |||
146 | __asm__("movel %2,%4\n\t" | ||
147 | "btst #1,%4\n\t" /* Check alignment */ | ||
148 | "jeq 2f\n\t" | ||
149 | "subql #2,%1\n\t" /* buff%4==2: treat first word */ | ||
150 | "jgt 1f\n\t" | ||
151 | "addql #2,%1\n\t" /* len was == 2, treat only rest */ | ||
152 | "jra 4f\n" | ||
153 | "1:\n" | ||
154 | "10:\t" | ||
155 | "movesw %2@+,%4\n\t" /* add first word to sum */ | ||
156 | "addw %4,%0\n\t" | ||
157 | "movew %4,%3@+\n\t" | ||
158 | "clrl %4\n\t" | ||
159 | "addxl %4,%0\n" /* add X bit */ | ||
160 | "2:\t" | ||
161 | /* unrolled loop for the main part: do 8 longs at once */ | ||
162 | "movel %1,%4\n\t" /* save len in tmp1 */ | ||
163 | "lsrl #5,%1\n\t" /* len/32 */ | ||
164 | "jeq 2f\n\t" /* not enough... */ | ||
165 | "subql #1,%1\n" | ||
166 | "1:\n" | ||
167 | "11:\t" | ||
168 | "movesl %2@+,%5\n\t" | ||
169 | "addxl %5,%0\n\t" | ||
170 | "movel %5,%3@+\n\t" | ||
171 | "12:\t" | ||
172 | "movesl %2@+,%5\n\t" | ||
173 | "addxl %5,%0\n\t" | ||
174 | "movel %5,%3@+\n\t" | ||
175 | "13:\t" | ||
176 | "movesl %2@+,%5\n\t" | ||
177 | "addxl %5,%0\n\t" | ||
178 | "movel %5,%3@+\n\t" | ||
179 | "14:\t" | ||
180 | "movesl %2@+,%5\n\t" | ||
181 | "addxl %5,%0\n\t" | ||
182 | "movel %5,%3@+\n\t" | ||
183 | "15:\t" | ||
184 | "movesl %2@+,%5\n\t" | ||
185 | "addxl %5,%0\n\t" | ||
186 | "movel %5,%3@+\n\t" | ||
187 | "16:\t" | ||
188 | "movesl %2@+,%5\n\t" | ||
189 | "addxl %5,%0\n\t" | ||
190 | "movel %5,%3@+\n\t" | ||
191 | "17:\t" | ||
192 | "movesl %2@+,%5\n\t" | ||
193 | "addxl %5,%0\n\t" | ||
194 | "movel %5,%3@+\n\t" | ||
195 | "18:\t" | ||
196 | "movesl %2@+,%5\n\t" | ||
197 | "addxl %5,%0\n\t" | ||
198 | "movel %5,%3@+\n\t" | ||
199 | "dbra %1,1b\n\t" | ||
200 | "clrl %5\n\t" | ||
201 | "addxl %5,%0\n\t" /* add X bit */ | ||
202 | "clrw %1\n\t" | ||
203 | "subql #1,%1\n\t" | ||
204 | "jcc 1b\n" | ||
205 | "2:\t" | ||
206 | "movel %4,%1\n\t" /* restore len from tmp1 */ | ||
207 | "andw #0x1c,%4\n\t" /* number of rest longs */ | ||
208 | "jeq 4f\n\t" | ||
209 | "lsrw #2,%4\n\t" | ||
210 | "subqw #1,%4\n" | ||
211 | "3:\n" | ||
212 | /* loop for rest longs */ | ||
213 | "19:\t" | ||
214 | "movesl %2@+,%5\n\t" | ||
215 | "addxl %5,%0\n\t" | ||
216 | "movel %5,%3@+\n\t" | ||
217 | "dbra %4,3b\n\t" | ||
218 | "clrl %5\n\t" | ||
219 | "addxl %5,%0\n" /* add X bit */ | ||
220 | "4:\t" | ||
221 | /* now check for rest bytes that do not fit into longs */ | ||
222 | "andw #3,%1\n\t" | ||
223 | "jeq 7f\n\t" | ||
224 | "clrl %5\n\t" /* clear tmp2 for rest bytes */ | ||
225 | "subqw #2,%1\n\t" | ||
226 | "jlt 5f\n\t" | ||
227 | "20:\t" | ||
228 | "movesw %2@+,%5\n\t" /* have rest >= 2: get word */ | ||
229 | "movew %5,%3@+\n\t" | ||
230 | "swap %5\n\t" /* into bits 16..31 */ | ||
231 | "tstw %1\n\t" /* another byte? */ | ||
232 | "jeq 6f\n" | ||
233 | "5:\n" | ||
234 | "21:\t" | ||
235 | "movesb %2@,%5\n\t" /* have odd rest: get byte */ | ||
236 | "moveb %5,%3@+\n\t" | ||
237 | "lslw #8,%5\n\t" /* into bits 8..15; 16..31 untouched */ | ||
238 | "6:\t" | ||
239 | "addl %5,%0\n\t" /* now add rest long to sum */ | ||
240 | "clrl %5\n\t" | ||
241 | "addxl %5,%0\n\t" /* add X bit */ | ||
242 | "7:\t" | ||
243 | "clrl %5\n" /* no error - clear return value */ | ||
244 | "8:\n" | ||
245 | ".section .fixup,\"ax\"\n" | ||
246 | ".even\n" | ||
247 | /* If any exception occurs zero out the rest. | ||
248 | Similarities with the code above are intentional :-) */ | ||
249 | "90:\t" | ||
250 | "clrw %3@+\n\t" | ||
251 | "movel %1,%4\n\t" | ||
252 | "lsrl #5,%1\n\t" | ||
253 | "jeq 1f\n\t" | ||
254 | "subql #1,%1\n" | ||
255 | "91:\t" | ||
256 | "clrl %3@+\n" | ||
257 | "92:\t" | ||
258 | "clrl %3@+\n" | ||
259 | "93:\t" | ||
260 | "clrl %3@+\n" | ||
261 | "94:\t" | ||
262 | "clrl %3@+\n" | ||
263 | "95:\t" | ||
264 | "clrl %3@+\n" | ||
265 | "96:\t" | ||
266 | "clrl %3@+\n" | ||
267 | "97:\t" | ||
268 | "clrl %3@+\n" | ||
269 | "98:\t" | ||
270 | "clrl %3@+\n\t" | ||
271 | "dbra %1,91b\n\t" | ||
272 | "clrw %1\n\t" | ||
273 | "subql #1,%1\n\t" | ||
274 | "jcc 91b\n" | ||
275 | "1:\t" | ||
276 | "movel %4,%1\n\t" | ||
277 | "andw #0x1c,%4\n\t" | ||
278 | "jeq 1f\n\t" | ||
279 | "lsrw #2,%4\n\t" | ||
280 | "subqw #1,%4\n" | ||
281 | "99:\t" | ||
282 | "clrl %3@+\n\t" | ||
283 | "dbra %4,99b\n\t" | ||
284 | "1:\t" | ||
285 | "andw #3,%1\n\t" | ||
286 | "jeq 9f\n" | ||
287 | "100:\t" | ||
288 | "clrw %3@+\n\t" | ||
289 | "tstw %1\n\t" | ||
290 | "jeq 9f\n" | ||
291 | "101:\t" | ||
292 | "clrb %3@+\n" | ||
293 | "9:\t" | ||
294 | #define STR(X) STR1(X) | ||
295 | #define STR1(X) #X | ||
296 | "moveq #-" STR(EFAULT) ",%5\n\t" | ||
297 | "jra 8b\n" | ||
298 | ".previous\n" | ||
299 | ".section __ex_table,\"a\"\n" | ||
300 | ".long 10b,90b\n" | ||
301 | ".long 11b,91b\n" | ||
302 | ".long 12b,92b\n" | ||
303 | ".long 13b,93b\n" | ||
304 | ".long 14b,94b\n" | ||
305 | ".long 15b,95b\n" | ||
306 | ".long 16b,96b\n" | ||
307 | ".long 17b,97b\n" | ||
308 | ".long 18b,98b\n" | ||
309 | ".long 19b,99b\n" | ||
310 | ".long 20b,100b\n" | ||
311 | ".long 21b,101b\n" | ||
312 | ".previous" | ||
313 | : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), | ||
314 | "=&d" (tmp1), "=d" (tmp2) | ||
315 | : "0" (sum), "1" (len), "2" (src), "3" (dst) | ||
316 | ); | ||
317 | |||
318 | *csum_err = tmp2; | ||
319 | |||
320 | return(sum); | ||
321 | } | ||
322 | |||
323 | EXPORT_SYMBOL(csum_partial_copy_from_user); | ||
324 | |||
325 | |||
326 | /* | ||
327 | * copy from kernel space while checksumming, otherwise like csum_partial | ||
328 | */ | ||
329 | |||
330 | __wsum | ||
331 | csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) | ||
332 | { | ||
333 | unsigned long tmp1, tmp2; | ||
334 | __asm__("movel %2,%4\n\t" | ||
335 | "btst #1,%4\n\t" /* Check alignment */ | ||
336 | "jeq 2f\n\t" | ||
337 | "subql #2,%1\n\t" /* buff%4==2: treat first word */ | ||
338 | "jgt 1f\n\t" | ||
339 | "addql #2,%1\n\t" /* len was == 2, treat only rest */ | ||
340 | "jra 4f\n" | ||
341 | "1:\t" | ||
342 | "movew %2@+,%4\n\t" /* add first word to sum */ | ||
343 | "addw %4,%0\n\t" | ||
344 | "movew %4,%3@+\n\t" | ||
345 | "clrl %4\n\t" | ||
346 | "addxl %4,%0\n" /* add X bit */ | ||
347 | "2:\t" | ||
348 | /* unrolled loop for the main part: do 8 longs at once */ | ||
349 | "movel %1,%4\n\t" /* save len in tmp1 */ | ||
350 | "lsrl #5,%1\n\t" /* len/32 */ | ||
351 | "jeq 2f\n\t" /* not enough... */ | ||
352 | "subql #1,%1\n" | ||
353 | "1:\t" | ||
354 | "movel %2@+,%5\n\t" | ||
355 | "addxl %5,%0\n\t" | ||
356 | "movel %5,%3@+\n\t" | ||
357 | "movel %2@+,%5\n\t" | ||
358 | "addxl %5,%0\n\t" | ||
359 | "movel %5,%3@+\n\t" | ||
360 | "movel %2@+,%5\n\t" | ||
361 | "addxl %5,%0\n\t" | ||
362 | "movel %5,%3@+\n\t" | ||
363 | "movel %2@+,%5\n\t" | ||
364 | "addxl %5,%0\n\t" | ||
365 | "movel %5,%3@+\n\t" | ||
366 | "movel %2@+,%5\n\t" | ||
367 | "addxl %5,%0\n\t" | ||
368 | "movel %5,%3@+\n\t" | ||
369 | "movel %2@+,%5\n\t" | ||
370 | "addxl %5,%0\n\t" | ||
371 | "movel %5,%3@+\n\t" | ||
372 | "movel %2@+,%5\n\t" | ||
373 | "addxl %5,%0\n\t" | ||
374 | "movel %5,%3@+\n\t" | ||
375 | "movel %2@+,%5\n\t" | ||
376 | "addxl %5,%0\n\t" | ||
377 | "movel %5,%3@+\n\t" | ||
378 | "dbra %1,1b\n\t" | ||
379 | "clrl %5\n\t" | ||
380 | "addxl %5,%0\n\t" /* add X bit */ | ||
381 | "clrw %1\n\t" | ||
382 | "subql #1,%1\n\t" | ||
383 | "jcc 1b\n" | ||
384 | "2:\t" | ||
385 | "movel %4,%1\n\t" /* restore len from tmp1 */ | ||
386 | "andw #0x1c,%4\n\t" /* number of rest longs */ | ||
387 | "jeq 4f\n\t" | ||
388 | "lsrw #2,%4\n\t" | ||
389 | "subqw #1,%4\n" | ||
390 | "3:\t" | ||
391 | /* loop for rest longs */ | ||
392 | "movel %2@+,%5\n\t" | ||
393 | "addxl %5,%0\n\t" | ||
394 | "movel %5,%3@+\n\t" | ||
395 | "dbra %4,3b\n\t" | ||
396 | "clrl %5\n\t" | ||
397 | "addxl %5,%0\n" /* add X bit */ | ||
398 | "4:\t" | ||
399 | /* now check for rest bytes that do not fit into longs */ | ||
400 | "andw #3,%1\n\t" | ||
401 | "jeq 7f\n\t" | ||
402 | "clrl %5\n\t" /* clear tmp2 for rest bytes */ | ||
403 | "subqw #2,%1\n\t" | ||
404 | "jlt 5f\n\t" | ||
405 | "movew %2@+,%5\n\t" /* have rest >= 2: get word */ | ||
406 | "movew %5,%3@+\n\t" | ||
407 | "swap %5\n\t" /* into bits 16..31 */ | ||
408 | "tstw %1\n\t" /* another byte? */ | ||
409 | "jeq 6f\n" | ||
410 | "5:\t" | ||
411 | "moveb %2@,%5\n\t" /* have odd rest: get byte */ | ||
412 | "moveb %5,%3@+\n\t" | ||
413 | "lslw #8,%5\n" /* into bits 8..15; 16..31 untouched */ | ||
414 | "6:\t" | ||
415 | "addl %5,%0\n\t" /* now add rest long to sum */ | ||
416 | "clrl %5\n\t" | ||
417 | "addxl %5,%0\n" /* add X bit */ | ||
418 | "7:\t" | ||
419 | : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), | ||
420 | "=&d" (tmp1), "=&d" (tmp2) | ||
421 | : "0" (sum), "1" (len), "2" (src), "3" (dst) | ||
422 | ); | ||
423 | return(sum); | ||
424 | } | ||
425 | EXPORT_SYMBOL(csum_partial_copy_nocheck); | ||
diff --git a/arch/m68k/lib/checksum_mm.c b/arch/m68k/lib/checksum_mm.c new file mode 100644 index 000000000000..6216f12a756b --- /dev/null +++ b/arch/m68k/lib/checksum_mm.c | |||
@@ -0,0 +1,425 @@ | |||
1 | /* | ||
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX | ||
3 | * operating system. INET is implemented using the BSD Socket | ||
4 | * interface as the means of communication with the user level. | ||
5 | * | ||
6 | * IP/TCP/UDP checksumming routines | ||
7 | * | ||
8 | * Authors: Jorge Cwik, <jorge@laser.satlink.net> | ||
9 | * Arnt Gulbrandsen, <agulbra@nvg.unit.no> | ||
10 | * Tom May, <ftom@netcom.com> | ||
11 | * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> | ||
12 | * Lots of code moved from tcp.c and ip.c; see those files | ||
13 | * for more names. | ||
14 | * | ||
15 | * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: | ||
16 | * Fixed some nasty bugs, causing some horrible crashes. | ||
17 | * A: At some points, the sum (%0) was used as | ||
18 | * length-counter instead of the length counter | ||
19 | * (%1). Thanks to Roman Hodek for pointing this out. | ||
20 | * B: GCC seems to mess up if one uses too many | ||
21 | * data-registers to hold input values and one tries to | ||
22 | * specify d0 and d1 as scratch registers. Letting gcc | ||
23 | * choose these registers itself solves the problem. | ||
24 | * | ||
25 | * This program is free software; you can redistribute it and/or | ||
26 | * modify it under the terms of the GNU General Public License | ||
27 | * as published by the Free Software Foundation; either version | ||
28 | * 2 of the License, or (at your option) any later version. | ||
29 | * | ||
30 | * 1998/8/31 Andreas Schwab: | ||
31 | * Zero out rest of buffer on exception in | ||
32 | * csum_partial_copy_from_user. | ||
33 | */ | ||
34 | |||
35 | #include <linux/module.h> | ||
36 | #include <net/checksum.h> | ||
37 | |||
38 | /* | ||
39 | * computes a partial checksum, e.g. for TCP/UDP fragments | ||
40 | */ | ||
41 | |||
42 | __wsum csum_partial(const void *buff, int len, __wsum sum) | ||
43 | { | ||
44 | unsigned long tmp1, tmp2; | ||
45 | /* | ||
46 | * Experiments with ethernet and slip connections show that buff | ||
47 | * is aligned on either a 2-byte or 4-byte boundary. | ||
48 | */ | ||
49 | __asm__("movel %2,%3\n\t" | ||
50 | "btst #1,%3\n\t" /* Check alignment */ | ||
51 | "jeq 2f\n\t" | ||
52 | "subql #2,%1\n\t" /* buff%4==2: treat first word */ | ||
53 | "jgt 1f\n\t" | ||
54 | "addql #2,%1\n\t" /* len was == 2, treat only rest */ | ||
55 | "jra 4f\n" | ||
56 | "1:\t" | ||
57 | "addw %2@+,%0\n\t" /* add first word to sum */ | ||
58 | "clrl %3\n\t" | ||
59 | "addxl %3,%0\n" /* add X bit */ | ||
60 | "2:\t" | ||
61 | /* unrolled loop for the main part: do 8 longs at once */ | ||
62 | "movel %1,%3\n\t" /* save len in tmp1 */ | ||
63 | "lsrl #5,%1\n\t" /* len/32 */ | ||
64 | "jeq 2f\n\t" /* not enough... */ | ||
65 | "subql #1,%1\n" | ||
66 | "1:\t" | ||
67 | "movel %2@+,%4\n\t" | ||
68 | "addxl %4,%0\n\t" | ||
69 | "movel %2@+,%4\n\t" | ||
70 | "addxl %4,%0\n\t" | ||
71 | "movel %2@+,%4\n\t" | ||
72 | "addxl %4,%0\n\t" | ||
73 | "movel %2@+,%4\n\t" | ||
74 | "addxl %4,%0\n\t" | ||
75 | "movel %2@+,%4\n\t" | ||
76 | "addxl %4,%0\n\t" | ||
77 | "movel %2@+,%4\n\t" | ||
78 | "addxl %4,%0\n\t" | ||
79 | "movel %2@+,%4\n\t" | ||
80 | "addxl %4,%0\n\t" | ||
81 | "movel %2@+,%4\n\t" | ||
82 | "addxl %4,%0\n\t" | ||
83 | "dbra %1,1b\n\t" | ||
84 | "clrl %4\n\t" | ||
85 | "addxl %4,%0\n\t" /* add X bit */ | ||
86 | "clrw %1\n\t" | ||
87 | "subql #1,%1\n\t" | ||
88 | "jcc 1b\n" | ||
89 | "2:\t" | ||
90 | "movel %3,%1\n\t" /* restore len from tmp1 */ | ||
91 | "andw #0x1c,%3\n\t" /* number of rest longs */ | ||
92 | "jeq 4f\n\t" | ||
93 | "lsrw #2,%3\n\t" | ||
94 | "subqw #1,%3\n" | ||
95 | "3:\t" | ||
96 | /* loop for rest longs */ | ||
97 | "movel %2@+,%4\n\t" | ||
98 | "addxl %4,%0\n\t" | ||
99 | "dbra %3,3b\n\t" | ||
100 | "clrl %4\n\t" | ||
101 | "addxl %4,%0\n" /* add X bit */ | ||
102 | "4:\t" | ||
103 | /* now check for rest bytes that do not fit into longs */ | ||
104 | "andw #3,%1\n\t" | ||
105 | "jeq 7f\n\t" | ||
106 | "clrl %4\n\t" /* clear tmp2 for rest bytes */ | ||
107 | "subqw #2,%1\n\t" | ||
108 | "jlt 5f\n\t" | ||
109 | "movew %2@+,%4\n\t" /* have rest >= 2: get word */ | ||
110 | "swap %4\n\t" /* into bits 16..31 */ | ||
111 | "tstw %1\n\t" /* another byte? */ | ||
112 | "jeq 6f\n" | ||
113 | "5:\t" | ||
114 | "moveb %2@,%4\n\t" /* have odd rest: get byte */ | ||
115 | "lslw #8,%4\n\t" /* into bits 8..15; 16..31 untouched */ | ||
116 | "6:\t" | ||
117 | "addl %4,%0\n\t" /* now add rest long to sum */ | ||
118 | "clrl %4\n\t" | ||
119 | "addxl %4,%0\n" /* add X bit */ | ||
120 | "7:\t" | ||
121 | : "=d" (sum), "=d" (len), "=a" (buff), | ||
122 | "=&d" (tmp1), "=&d" (tmp2) | ||
123 | : "0" (sum), "1" (len), "2" (buff) | ||
124 | ); | ||
125 | return(sum); | ||
126 | } | ||
127 | |||
128 | EXPORT_SYMBOL(csum_partial); | ||
129 | |||
130 | |||
131 | /* | ||
132 | * copy from user space while checksumming, with exception handling. | ||
133 | */ | ||
134 | |||
135 | __wsum | ||
136 | csum_partial_copy_from_user(const void __user *src, void *dst, | ||
137 | int len, __wsum sum, int *csum_err) | ||
138 | { | ||
139 | /* | ||
140 | * GCC doesn't like more than 10 operands for the asm | ||
141 | * statements so we have to use tmp2 for the error | ||
142 | * code. | ||
143 | */ | ||
144 | unsigned long tmp1, tmp2; | ||
145 | |||
146 | __asm__("movel %2,%4\n\t" | ||
147 | "btst #1,%4\n\t" /* Check alignment */ | ||
148 | "jeq 2f\n\t" | ||
149 | "subql #2,%1\n\t" /* buff%4==2: treat first word */ | ||
150 | "jgt 1f\n\t" | ||
151 | "addql #2,%1\n\t" /* len was == 2, treat only rest */ | ||
152 | "jra 4f\n" | ||
153 | "1:\n" | ||
154 | "10:\t" | ||
155 | "movesw %2@+,%4\n\t" /* add first word to sum */ | ||
156 | "addw %4,%0\n\t" | ||
157 | "movew %4,%3@+\n\t" | ||
158 | "clrl %4\n\t" | ||
159 | "addxl %4,%0\n" /* add X bit */ | ||
160 | "2:\t" | ||
161 | /* unrolled loop for the main part: do 8 longs at once */ | ||
162 | "movel %1,%4\n\t" /* save len in tmp1 */ | ||
163 | "lsrl #5,%1\n\t" /* len/32 */ | ||
164 | "jeq 2f\n\t" /* not enough... */ | ||
165 | "subql #1,%1\n" | ||
166 | "1:\n" | ||
167 | "11:\t" | ||
168 | "movesl %2@+,%5\n\t" | ||
169 | "addxl %5,%0\n\t" | ||
170 | "movel %5,%3@+\n\t" | ||
171 | "12:\t" | ||
172 | "movesl %2@+,%5\n\t" | ||
173 | "addxl %5,%0\n\t" | ||
174 | "movel %5,%3@+\n\t" | ||
175 | "13:\t" | ||
176 | "movesl %2@+,%5\n\t" | ||
177 | "addxl %5,%0\n\t" | ||
178 | "movel %5,%3@+\n\t" | ||
179 | "14:\t" | ||
180 | "movesl %2@+,%5\n\t" | ||
181 | "addxl %5,%0\n\t" | ||
182 | "movel %5,%3@+\n\t" | ||
183 | "15:\t" | ||
184 | "movesl %2@+,%5\n\t" | ||
185 | "addxl %5,%0\n\t" | ||
186 | "movel %5,%3@+\n\t" | ||
187 | "16:\t" | ||
188 | "movesl %2@+,%5\n\t" | ||
189 | "addxl %5,%0\n\t" | ||
190 | "movel %5,%3@+\n\t" | ||
191 | "17:\t" | ||
192 | "movesl %2@+,%5\n\t" | ||
193 | "addxl %5,%0\n\t" | ||
194 | "movel %5,%3@+\n\t" | ||
195 | "18:\t" | ||
196 | "movesl %2@+,%5\n\t" | ||
197 | "addxl %5,%0\n\t" | ||
198 | "movel %5,%3@+\n\t" | ||
199 | "dbra %1,1b\n\t" | ||
200 | "clrl %5\n\t" | ||
201 | "addxl %5,%0\n\t" /* add X bit */ | ||
202 | "clrw %1\n\t" | ||
203 | "subql #1,%1\n\t" | ||
204 | "jcc 1b\n" | ||
205 | "2:\t" | ||
206 | "movel %4,%1\n\t" /* restore len from tmp1 */ | ||
207 | "andw #0x1c,%4\n\t" /* number of rest longs */ | ||
208 | "jeq 4f\n\t" | ||
209 | "lsrw #2,%4\n\t" | ||
210 | "subqw #1,%4\n" | ||
211 | "3:\n" | ||
212 | /* loop for rest longs */ | ||
213 | "19:\t" | ||
214 | "movesl %2@+,%5\n\t" | ||
215 | "addxl %5,%0\n\t" | ||
216 | "movel %5,%3@+\n\t" | ||
217 | "dbra %4,3b\n\t" | ||
218 | "clrl %5\n\t" | ||
219 | "addxl %5,%0\n" /* add X bit */ | ||
220 | "4:\t" | ||
221 | /* now check for rest bytes that do not fit into longs */ | ||
222 | "andw #3,%1\n\t" | ||
223 | "jeq 7f\n\t" | ||
224 | "clrl %5\n\t" /* clear tmp2 for rest bytes */ | ||
225 | "subqw #2,%1\n\t" | ||
226 | "jlt 5f\n\t" | ||
227 | "20:\t" | ||
228 | "movesw %2@+,%5\n\t" /* have rest >= 2: get word */ | ||
229 | "movew %5,%3@+\n\t" | ||
230 | "swap %5\n\t" /* into bits 16..31 */ | ||
231 | "tstw %1\n\t" /* another byte? */ | ||
232 | "jeq 6f\n" | ||
233 | "5:\n" | ||
234 | "21:\t" | ||
235 | "movesb %2@,%5\n\t" /* have odd rest: get byte */ | ||
236 | "moveb %5,%3@+\n\t" | ||
237 | "lslw #8,%5\n\t" /* into bits 8..15; 16..31 untouched */ | ||
238 | "6:\t" | ||
239 | "addl %5,%0\n\t" /* now add rest long to sum */ | ||
240 | "clrl %5\n\t" | ||
241 | "addxl %5,%0\n\t" /* add X bit */ | ||
242 | "7:\t" | ||
243 | "clrl %5\n" /* no error - clear return value */ | ||
244 | "8:\n" | ||
245 | ".section .fixup,\"ax\"\n" | ||
246 | ".even\n" | ||
247 | /* If any exception occurs zero out the rest. | ||
248 | Similarities with the code above are intentional :-) */ | ||
249 | "90:\t" | ||
250 | "clrw %3@+\n\t" | ||
251 | "movel %1,%4\n\t" | ||
252 | "lsrl #5,%1\n\t" | ||
253 | "jeq 1f\n\t" | ||
254 | "subql #1,%1\n" | ||
255 | "91:\t" | ||
256 | "clrl %3@+\n" | ||
257 | "92:\t" | ||
258 | "clrl %3@+\n" | ||
259 | "93:\t" | ||
260 | "clrl %3@+\n" | ||
261 | "94:\t" | ||
262 | "clrl %3@+\n" | ||
263 | "95:\t" | ||
264 | "clrl %3@+\n" | ||
265 | "96:\t" | ||
266 | "clrl %3@+\n" | ||
267 | "97:\t" | ||
268 | "clrl %3@+\n" | ||
269 | "98:\t" | ||
270 | "clrl %3@+\n\t" | ||
271 | "dbra %1,91b\n\t" | ||
272 | "clrw %1\n\t" | ||
273 | "subql #1,%1\n\t" | ||
274 | "jcc 91b\n" | ||
275 | "1:\t" | ||
276 | "movel %4,%1\n\t" | ||
277 | "andw #0x1c,%4\n\t" | ||
278 | "jeq 1f\n\t" | ||
279 | "lsrw #2,%4\n\t" | ||
280 | "subqw #1,%4\n" | ||
281 | "99:\t" | ||
282 | "clrl %3@+\n\t" | ||
283 | "dbra %4,99b\n\t" | ||
284 | "1:\t" | ||
285 | "andw #3,%1\n\t" | ||
286 | "jeq 9f\n" | ||
287 | "100:\t" | ||
288 | "clrw %3@+\n\t" | ||
289 | "tstw %1\n\t" | ||
290 | "jeq 9f\n" | ||
291 | "101:\t" | ||
292 | "clrb %3@+\n" | ||
293 | "9:\t" | ||
294 | #define STR(X) STR1(X) | ||
295 | #define STR1(X) #X | ||
296 | "moveq #-" STR(EFAULT) ",%5\n\t" | ||
297 | "jra 8b\n" | ||
298 | ".previous\n" | ||
299 | ".section __ex_table,\"a\"\n" | ||
300 | ".long 10b,90b\n" | ||
301 | ".long 11b,91b\n" | ||
302 | ".long 12b,92b\n" | ||
303 | ".long 13b,93b\n" | ||
304 | ".long 14b,94b\n" | ||
305 | ".long 15b,95b\n" | ||
306 | ".long 16b,96b\n" | ||
307 | ".long 17b,97b\n" | ||
308 | ".long 18b,98b\n" | ||
309 | ".long 19b,99b\n" | ||
310 | ".long 20b,100b\n" | ||
311 | ".long 21b,101b\n" | ||
312 | ".previous" | ||
313 | : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), | ||
314 | "=&d" (tmp1), "=d" (tmp2) | ||
315 | : "0" (sum), "1" (len), "2" (src), "3" (dst) | ||
316 | ); | ||
317 | |||
318 | *csum_err = tmp2; | ||
319 | |||
320 | return(sum); | ||
321 | } | ||
322 | |||
323 | EXPORT_SYMBOL(csum_partial_copy_from_user); | ||
324 | |||
325 | |||
326 | /* | ||
327 | * copy from kernel space while checksumming, otherwise like csum_partial | ||
328 | */ | ||
329 | |||
330 | __wsum | ||
331 | csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) | ||
332 | { | ||
333 | unsigned long tmp1, tmp2; | ||
334 | __asm__("movel %2,%4\n\t" | ||
335 | "btst #1,%4\n\t" /* Check alignment */ | ||
336 | "jeq 2f\n\t" | ||
337 | "subql #2,%1\n\t" /* buff%4==2: treat first word */ | ||
338 | "jgt 1f\n\t" | ||
339 | "addql #2,%1\n\t" /* len was == 2, treat only rest */ | ||
340 | "jra 4f\n" | ||
341 | "1:\t" | ||
342 | "movew %2@+,%4\n\t" /* add first word to sum */ | ||
343 | "addw %4,%0\n\t" | ||
344 | "movew %4,%3@+\n\t" | ||
345 | "clrl %4\n\t" | ||
346 | "addxl %4,%0\n" /* add X bit */ | ||
347 | "2:\t" | ||
348 | /* unrolled loop for the main part: do 8 longs at once */ | ||
349 | "movel %1,%4\n\t" /* save len in tmp1 */ | ||
350 | "lsrl #5,%1\n\t" /* len/32 */ | ||
351 | "jeq 2f\n\t" /* not enough... */ | ||
352 | "subql #1,%1\n" | ||
353 | "1:\t" | ||
354 | "movel %2@+,%5\n\t" | ||
355 | "addxl %5,%0\n\t" | ||
356 | "movel %5,%3@+\n\t" | ||
357 | "movel %2@+,%5\n\t" | ||
358 | "addxl %5,%0\n\t" | ||
359 | "movel %5,%3@+\n\t" | ||
360 | "movel %2@+,%5\n\t" | ||
361 | "addxl %5,%0\n\t" | ||
362 | "movel %5,%3@+\n\t" | ||
363 | "movel %2@+,%5\n\t" | ||
364 | "addxl %5,%0\n\t" | ||
365 | "movel %5,%3@+\n\t" | ||
366 | "movel %2@+,%5\n\t" | ||
367 | "addxl %5,%0\n\t" | ||
368 | "movel %5,%3@+\n\t" | ||
369 | "movel %2@+,%5\n\t" | ||
370 | "addxl %5,%0\n\t" | ||
371 | "movel %5,%3@+\n\t" | ||
372 | "movel %2@+,%5\n\t" | ||
373 | "addxl %5,%0\n\t" | ||
374 | "movel %5,%3@+\n\t" | ||
375 | "movel %2@+,%5\n\t" | ||
376 | "addxl %5,%0\n\t" | ||
377 | "movel %5,%3@+\n\t" | ||
378 | "dbra %1,1b\n\t" | ||
379 | "clrl %5\n\t" | ||
380 | "addxl %5,%0\n\t" /* add X bit */ | ||
381 | "clrw %1\n\t" | ||
382 | "subql #1,%1\n\t" | ||
383 | "jcc 1b\n" | ||
384 | "2:\t" | ||
385 | "movel %4,%1\n\t" /* restore len from tmp1 */ | ||
386 | "andw #0x1c,%4\n\t" /* number of rest longs */ | ||
387 | "jeq 4f\n\t" | ||
388 | "lsrw #2,%4\n\t" | ||
389 | "subqw #1,%4\n" | ||
390 | "3:\t" | ||
391 | /* loop for rest longs */ | ||
392 | "movel %2@+,%5\n\t" | ||
393 | "addxl %5,%0\n\t" | ||
394 | "movel %5,%3@+\n\t" | ||
395 | "dbra %4,3b\n\t" | ||
396 | "clrl %5\n\t" | ||
397 | "addxl %5,%0\n" /* add X bit */ | ||
398 | "4:\t" | ||
399 | /* now check for rest bytes that do not fit into longs */ | ||
400 | "andw #3,%1\n\t" | ||
401 | "jeq 7f\n\t" | ||
402 | "clrl %5\n\t" /* clear tmp2 for rest bytes */ | ||
403 | "subqw #2,%1\n\t" | ||
404 | "jlt 5f\n\t" | ||
405 | "movew %2@+,%5\n\t" /* have rest >= 2: get word */ | ||
406 | "movew %5,%3@+\n\t" | ||
407 | "swap %5\n\t" /* into bits 16..31 */ | ||
408 | "tstw %1\n\t" /* another byte? */ | ||
409 | "jeq 6f\n" | ||
410 | "5:\t" | ||
411 | "moveb %2@,%5\n\t" /* have odd rest: get byte */ | ||
412 | "moveb %5,%3@+\n\t" | ||
413 | "lslw #8,%5\n" /* into bits 8..15; 16..31 untouched */ | ||
414 | "6:\t" | ||
415 | "addl %5,%0\n\t" /* now add rest long to sum */ | ||
416 | "clrl %5\n\t" | ||
417 | "addxl %5,%0\n" /* add X bit */ | ||
418 | "7:\t" | ||
419 | : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), | ||
420 | "=&d" (tmp1), "=&d" (tmp2) | ||
421 | : "0" (sum), "1" (len), "2" (src), "3" (dst) | ||
422 | ); | ||
423 | return(sum); | ||
424 | } | ||
425 | EXPORT_SYMBOL(csum_partial_copy_nocheck); | ||
diff --git a/arch/m68knommu/lib/checksum.c b/arch/m68k/lib/checksum_no.c index eccf25d3d73e..eccf25d3d73e 100644 --- a/arch/m68knommu/lib/checksum.c +++ b/arch/m68k/lib/checksum_no.c | |||
diff --git a/arch/m68knommu/lib/delay.c b/arch/m68k/lib/delay.c index 5bd5472d38a0..5bd5472d38a0 100644 --- a/arch/m68knommu/lib/delay.c +++ b/arch/m68k/lib/delay.c | |||
diff --git a/arch/m68knommu/lib/divsi3.S b/arch/m68k/lib/divsi3.S index ec307b61991e..ec307b61991e 100644 --- a/arch/m68knommu/lib/divsi3.S +++ b/arch/m68k/lib/divsi3.S | |||
diff --git a/arch/m68knommu/lib/memcpy.c b/arch/m68k/lib/memcpy.c index b50dbcad4746..b50dbcad4746 100644 --- a/arch/m68knommu/lib/memcpy.c +++ b/arch/m68k/lib/memcpy.c | |||
diff --git a/arch/m68knommu/lib/memmove.c b/arch/m68k/lib/memmove.c index b3dcfe9dab7e..b3dcfe9dab7e 100644 --- a/arch/m68knommu/lib/memmove.c +++ b/arch/m68k/lib/memmove.c | |||
diff --git a/arch/m68knommu/lib/memset.c b/arch/m68k/lib/memset.c index 1389bf455633..1389bf455633 100644 --- a/arch/m68knommu/lib/memset.c +++ b/arch/m68k/lib/memset.c | |||
diff --git a/arch/m68knommu/lib/modsi3.S b/arch/m68k/lib/modsi3.S index ef3849435768..ef3849435768 100644 --- a/arch/m68knommu/lib/modsi3.S +++ b/arch/m68k/lib/modsi3.S | |||
diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c index be4f275649e3..16e0eb338ee0 100644 --- a/arch/m68k/lib/muldi3.c +++ b/arch/m68k/lib/muldi3.c | |||
@@ -1,63 +1,5 @@ | |||
1 | /* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and | 1 | #ifdef CONFIG_MMU |
2 | gcc-2.7.2.3/longlong.h which is: */ | 2 | #include "muldi3_mm.c" |
3 | /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. | 3 | #else |
4 | 4 | #include "muldi3_no.c" | |
5 | This file is part of GNU CC. | 5 | #endif |
6 | |||
7 | GNU CC is free software; you can redistribute it and/or modify | ||
8 | it under the terms of the GNU General Public License as published by | ||
9 | the Free Software Foundation; either version 2, or (at your option) | ||
10 | any later version. | ||
11 | |||
12 | GNU CC is distributed in the hope that it will be useful, | ||
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | GNU General Public License for more details. | ||
16 | |||
17 | You should have received a copy of the GNU General Public License | ||
18 | along with GNU CC; see the file COPYING. If not, write to | ||
19 | the Free Software Foundation, 59 Temple Place - Suite 330, | ||
20 | Boston, MA 02111-1307, USA. */ | ||
21 | |||
22 | #define BITS_PER_UNIT 8 | ||
23 | |||
24 | #define umul_ppmm(w1, w0, u, v) \ | ||
25 | __asm__ ("mulu%.l %3,%1:%0" \ | ||
26 | : "=d" ((USItype)(w0)), \ | ||
27 | "=d" ((USItype)(w1)) \ | ||
28 | : "%0" ((USItype)(u)), \ | ||
29 | "dmi" ((USItype)(v))) | ||
30 | |||
31 | #define __umulsidi3(u, v) \ | ||
32 | ({DIunion __w; \ | ||
33 | umul_ppmm (__w.s.high, __w.s.low, u, v); \ | ||
34 | __w.ll; }) | ||
35 | |||
36 | typedef int SItype __attribute__ ((mode (SI))); | ||
37 | typedef unsigned int USItype __attribute__ ((mode (SI))); | ||
38 | typedef int DItype __attribute__ ((mode (DI))); | ||
39 | typedef int word_type __attribute__ ((mode (__word__))); | ||
40 | |||
41 | struct DIstruct {SItype high, low;}; | ||
42 | |||
43 | typedef union | ||
44 | { | ||
45 | struct DIstruct s; | ||
46 | DItype ll; | ||
47 | } DIunion; | ||
48 | |||
49 | DItype | ||
50 | __muldi3 (DItype u, DItype v) | ||
51 | { | ||
52 | DIunion w; | ||
53 | DIunion uu, vv; | ||
54 | |||
55 | uu.ll = u, | ||
56 | vv.ll = v; | ||
57 | |||
58 | w.ll = __umulsidi3 (uu.s.low, vv.s.low); | ||
59 | w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high | ||
60 | + (USItype) uu.s.high * (USItype) vv.s.low); | ||
61 | |||
62 | return w.ll; | ||
63 | } | ||
diff --git a/arch/m68knommu/lib/ashrdi3.c b/arch/m68k/lib/muldi3_mm.c index 78efb65e315a..be4f275649e3 100644 --- a/arch/m68knommu/lib/ashrdi3.c +++ b/arch/m68k/lib/muldi3_mm.c | |||
@@ -1,4 +1,5 @@ | |||
1 | /* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ | 1 | /* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and |
2 | gcc-2.7.2.3/longlong.h which is: */ | ||
2 | /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. | 3 | /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. |
3 | 4 | ||
4 | This file is part of GNU CC. | 5 | This file is part of GNU CC. |
@@ -20,7 +21,19 @@ Boston, MA 02111-1307, USA. */ | |||
20 | 21 | ||
21 | #define BITS_PER_UNIT 8 | 22 | #define BITS_PER_UNIT 8 |
22 | 23 | ||
23 | typedef int SItype __attribute__ ((mode (SI))); | 24 | #define umul_ppmm(w1, w0, u, v) \ |
25 | __asm__ ("mulu%.l %3,%1:%0" \ | ||
26 | : "=d" ((USItype)(w0)), \ | ||
27 | "=d" ((USItype)(w1)) \ | ||
28 | : "%0" ((USItype)(u)), \ | ||
29 | "dmi" ((USItype)(v))) | ||
30 | |||
31 | #define __umulsidi3(u, v) \ | ||
32 | ({DIunion __w; \ | ||
33 | umul_ppmm (__w.s.high, __w.s.low, u, v); \ | ||
34 | __w.ll; }) | ||
35 | |||
36 | typedef int SItype __attribute__ ((mode (SI))); | ||
24 | typedef unsigned int USItype __attribute__ ((mode (SI))); | 37 | typedef unsigned int USItype __attribute__ ((mode (SI))); |
25 | typedef int DItype __attribute__ ((mode (DI))); | 38 | typedef int DItype __attribute__ ((mode (DI))); |
26 | typedef int word_type __attribute__ ((mode (__word__))); | 39 | typedef int word_type __attribute__ ((mode (__word__))); |
@@ -34,30 +47,17 @@ typedef union | |||
34 | } DIunion; | 47 | } DIunion; |
35 | 48 | ||
36 | DItype | 49 | DItype |
37 | __ashrdi3 (DItype u, word_type b) | 50 | __muldi3 (DItype u, DItype v) |
38 | { | 51 | { |
39 | DIunion w; | 52 | DIunion w; |
40 | word_type bm; | 53 | DIunion uu, vv; |
41 | DIunion uu; | 54 | |
42 | 55 | uu.ll = u, | |
43 | if (b == 0) | 56 | vv.ll = v; |
44 | return u; | 57 | |
45 | 58 | w.ll = __umulsidi3 (uu.s.low, vv.s.low); | |
46 | uu.ll = u; | 59 | w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high |
47 | 60 | + (USItype) uu.s.high * (USItype) vv.s.low); | |
48 | bm = (sizeof (SItype) * BITS_PER_UNIT) - b; | ||
49 | if (bm <= 0) | ||
50 | { | ||
51 | /* w.s.high = 1..1 or 0..0 */ | ||
52 | w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1); | ||
53 | w.s.low = uu.s.high >> -bm; | ||
54 | } | ||
55 | else | ||
56 | { | ||
57 | USItype carries = (USItype)uu.s.high << bm; | ||
58 | w.s.high = uu.s.high >> b; | ||
59 | w.s.low = ((USItype)uu.s.low >> b) | carries; | ||
60 | } | ||
61 | 61 | ||
62 | return w.ll; | 62 | return w.ll; |
63 | } | 63 | } |
diff --git a/arch/m68knommu/lib/muldi3.c b/arch/m68k/lib/muldi3_no.c index 34af72c30303..34af72c30303 100644 --- a/arch/m68knommu/lib/muldi3.c +++ b/arch/m68k/lib/muldi3_no.c | |||
diff --git a/arch/m68knommu/lib/mulsi3.S b/arch/m68k/lib/mulsi3.S index ce29ea37b45f..ce29ea37b45f 100644 --- a/arch/m68knommu/lib/mulsi3.S +++ b/arch/m68k/lib/mulsi3.S | |||
diff --git a/arch/m68knommu/lib/udivsi3.S b/arch/m68k/lib/udivsi3.S index c424c4a1f0a3..c424c4a1f0a3 100644 --- a/arch/m68knommu/lib/udivsi3.S +++ b/arch/m68k/lib/udivsi3.S | |||
diff --git a/arch/m68knommu/lib/umodsi3.S b/arch/m68k/lib/umodsi3.S index 5def5f626478..5def5f626478 100644 --- a/arch/m68knommu/lib/umodsi3.S +++ b/arch/m68k/lib/umodsi3.S | |||
diff --git a/arch/m68k/mm/Makefile b/arch/m68k/mm/Makefile index 5eaa43c4cb3c..b60270e4954b 100644 --- a/arch/m68k/mm/Makefile +++ b/arch/m68k/mm/Makefile | |||
@@ -1,8 +1,5 @@ | |||
1 | # | 1 | ifdef CONFIG_MMU |
2 | # Makefile for the linux m68k-specific parts of the memory manager. | 2 | include arch/m68k/mm/Makefile_mm |
3 | # | 3 | else |
4 | 4 | include arch/m68k/mm/Makefile_no | |
5 | obj-y := cache.o init.o fault.o hwtest.o | 5 | endif |
6 | |||
7 | obj-$(CONFIG_MMU_MOTOROLA) += kmap.o memory.o motorola.o | ||
8 | obj-$(CONFIG_MMU_SUN3) += sun3kmap.o sun3mmu.o | ||
diff --git a/arch/m68k/mm/Makefile_mm b/arch/m68k/mm/Makefile_mm new file mode 100644 index 000000000000..5eaa43c4cb3c --- /dev/null +++ b/arch/m68k/mm/Makefile_mm | |||
@@ -0,0 +1,8 @@ | |||
1 | # | ||
2 | # Makefile for the linux m68k-specific parts of the memory manager. | ||
3 | # | ||
4 | |||
5 | obj-y := cache.o init.o fault.o hwtest.o | ||
6 | |||
7 | obj-$(CONFIG_MMU_MOTOROLA) += kmap.o memory.o motorola.o | ||
8 | obj-$(CONFIG_MMU_SUN3) += sun3kmap.o sun3mmu.o | ||
diff --git a/arch/m68knommu/mm/Makefile b/arch/m68k/mm/Makefile_no index b54ab6b4b523..b54ab6b4b523 100644 --- a/arch/m68knommu/mm/Makefile +++ b/arch/m68k/mm/Makefile_no | |||
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 8bc842554e5b..27b5ce089a34 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c | |||
@@ -1,150 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/mm/init.c | 2 | #include "init_mm.c" |
3 | * | 3 | #else |
4 | * Copyright (C) 1995 Hamish Macdonald | 4 | #include "init_no.c" |
5 | * | ||
6 | * Contains common initialization routines, specific init code moved | ||
7 | * to motorola.c and sun3mmu.c | ||
8 | */ | ||
9 | |||
10 | #include <linux/module.h> | ||
11 | #include <linux/signal.h> | ||
12 | #include <linux/sched.h> | ||
13 | #include <linux/mm.h> | ||
14 | #include <linux/swap.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/string.h> | ||
17 | #include <linux/types.h> | ||
18 | #include <linux/init.h> | ||
19 | #include <linux/bootmem.h> | ||
20 | #include <linux/gfp.h> | ||
21 | |||
22 | #include <asm/setup.h> | ||
23 | #include <asm/uaccess.h> | ||
24 | #include <asm/page.h> | ||
25 | #include <asm/pgalloc.h> | ||
26 | #include <asm/system.h> | ||
27 | #include <asm/machdep.h> | ||
28 | #include <asm/io.h> | ||
29 | #ifdef CONFIG_ATARI | ||
30 | #include <asm/atari_stram.h> | ||
31 | #endif | ||
32 | #include <asm/sections.h> | ||
33 | #include <asm/tlb.h> | ||
34 | |||
35 | DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); | ||
36 | |||
37 | pg_data_t pg_data_map[MAX_NUMNODES]; | ||
38 | EXPORT_SYMBOL(pg_data_map); | ||
39 | |||
40 | int m68k_virt_to_node_shift; | ||
41 | |||
42 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
43 | pg_data_t *pg_data_table[65]; | ||
44 | EXPORT_SYMBOL(pg_data_table); | ||
45 | #endif | ||
46 | |||
47 | void __init m68k_setup_node(int node) | ||
48 | { | ||
49 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
50 | struct mem_info *info = m68k_memory + node; | ||
51 | int i, end; | ||
52 | |||
53 | i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift(); | ||
54 | end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift(); | ||
55 | for (; i <= end; i++) { | ||
56 | if (pg_data_table[i]) | ||
57 | printk("overlap at %u for chunk %u\n", i, node); | ||
58 | pg_data_table[i] = pg_data_map + node; | ||
59 | } | ||
60 | #endif | ||
61 | pg_data_map[node].bdata = bootmem_node_data + node; | ||
62 | node_set_online(node); | ||
63 | } | ||
64 | |||
65 | |||
66 | /* | ||
67 | * ZERO_PAGE is a special page that is used for zero-initialized | ||
68 | * data and COW. | ||
69 | */ | ||
70 | |||
71 | void *empty_zero_page; | ||
72 | EXPORT_SYMBOL(empty_zero_page); | ||
73 | |||
74 | extern void init_pointer_table(unsigned long ptable); | ||
75 | |||
76 | /* References to section boundaries */ | ||
77 | |||
78 | extern pmd_t *zero_pgtable; | ||
79 | |||
80 | void __init mem_init(void) | ||
81 | { | ||
82 | pg_data_t *pgdat; | ||
83 | int codepages = 0; | ||
84 | int datapages = 0; | ||
85 | int initpages = 0; | ||
86 | int i; | ||
87 | |||
88 | #ifdef CONFIG_ATARI | ||
89 | if (MACH_IS_ATARI) | ||
90 | atari_stram_mem_init_hook(); | ||
91 | #endif | ||
92 | |||
93 | /* this will put all memory onto the freelists */ | ||
94 | totalram_pages = num_physpages = 0; | ||
95 | for_each_online_pgdat(pgdat) { | ||
96 | num_physpages += pgdat->node_present_pages; | ||
97 | |||
98 | totalram_pages += free_all_bootmem_node(pgdat); | ||
99 | for (i = 0; i < pgdat->node_spanned_pages; i++) { | ||
100 | struct page *page = pgdat->node_mem_map + i; | ||
101 | char *addr = page_to_virt(page); | ||
102 | |||
103 | if (!PageReserved(page)) | ||
104 | continue; | ||
105 | if (addr >= _text && | ||
106 | addr < _etext) | ||
107 | codepages++; | ||
108 | else if (addr >= __init_begin && | ||
109 | addr < __init_end) | ||
110 | initpages++; | ||
111 | else | ||
112 | datapages++; | ||
113 | } | ||
114 | } | ||
115 | |||
116 | #ifndef CONFIG_SUN3 | ||
117 | /* insert pointer tables allocated so far into the tablelist */ | ||
118 | init_pointer_table((unsigned long)kernel_pg_dir); | ||
119 | for (i = 0; i < PTRS_PER_PGD; i++) { | ||
120 | if (pgd_present(kernel_pg_dir[i])) | ||
121 | init_pointer_table(__pgd_page(kernel_pg_dir[i])); | ||
122 | } | ||
123 | |||
124 | /* insert also pointer table that we used to unmap the zero page */ | ||
125 | if (zero_pgtable) | ||
126 | init_pointer_table((unsigned long)zero_pgtable); | ||
127 | #endif | ||
128 | |||
129 | printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", | ||
130 | nr_free_pages() << (PAGE_SHIFT-10), | ||
131 | totalram_pages << (PAGE_SHIFT-10), | ||
132 | codepages << (PAGE_SHIFT-10), | ||
133 | datapages << (PAGE_SHIFT-10), | ||
134 | initpages << (PAGE_SHIFT-10)); | ||
135 | } | ||
136 | |||
137 | #ifdef CONFIG_BLK_DEV_INITRD | ||
138 | void free_initrd_mem(unsigned long start, unsigned long end) | ||
139 | { | ||
140 | int pages = 0; | ||
141 | for (; start < end; start += PAGE_SIZE) { | ||
142 | ClearPageReserved(virt_to_page(start)); | ||
143 | init_page_count(virt_to_page(start)); | ||
144 | free_page(start); | ||
145 | totalram_pages++; | ||
146 | pages++; | ||
147 | } | ||
148 | printk ("Freeing initrd memory: %dk freed\n", pages); | ||
149 | } | ||
150 | #endif | 5 | #endif |
diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c new file mode 100644 index 000000000000..8bc842554e5b --- /dev/null +++ b/arch/m68k/mm/init_mm.c | |||
@@ -0,0 +1,150 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/mm/init.c | ||
3 | * | ||
4 | * Copyright (C) 1995 Hamish Macdonald | ||
5 | * | ||
6 | * Contains common initialization routines, specific init code moved | ||
7 | * to motorola.c and sun3mmu.c | ||
8 | */ | ||
9 | |||
10 | #include <linux/module.h> | ||
11 | #include <linux/signal.h> | ||
12 | #include <linux/sched.h> | ||
13 | #include <linux/mm.h> | ||
14 | #include <linux/swap.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/string.h> | ||
17 | #include <linux/types.h> | ||
18 | #include <linux/init.h> | ||
19 | #include <linux/bootmem.h> | ||
20 | #include <linux/gfp.h> | ||
21 | |||
22 | #include <asm/setup.h> | ||
23 | #include <asm/uaccess.h> | ||
24 | #include <asm/page.h> | ||
25 | #include <asm/pgalloc.h> | ||
26 | #include <asm/system.h> | ||
27 | #include <asm/machdep.h> | ||
28 | #include <asm/io.h> | ||
29 | #ifdef CONFIG_ATARI | ||
30 | #include <asm/atari_stram.h> | ||
31 | #endif | ||
32 | #include <asm/sections.h> | ||
33 | #include <asm/tlb.h> | ||
34 | |||
35 | DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); | ||
36 | |||
37 | pg_data_t pg_data_map[MAX_NUMNODES]; | ||
38 | EXPORT_SYMBOL(pg_data_map); | ||
39 | |||
40 | int m68k_virt_to_node_shift; | ||
41 | |||
42 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
43 | pg_data_t *pg_data_table[65]; | ||
44 | EXPORT_SYMBOL(pg_data_table); | ||
45 | #endif | ||
46 | |||
47 | void __init m68k_setup_node(int node) | ||
48 | { | ||
49 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
50 | struct mem_info *info = m68k_memory + node; | ||
51 | int i, end; | ||
52 | |||
53 | i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift(); | ||
54 | end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift(); | ||
55 | for (; i <= end; i++) { | ||
56 | if (pg_data_table[i]) | ||
57 | printk("overlap at %u for chunk %u\n", i, node); | ||
58 | pg_data_table[i] = pg_data_map + node; | ||
59 | } | ||
60 | #endif | ||
61 | pg_data_map[node].bdata = bootmem_node_data + node; | ||
62 | node_set_online(node); | ||
63 | } | ||
64 | |||
65 | |||
66 | /* | ||
67 | * ZERO_PAGE is a special page that is used for zero-initialized | ||
68 | * data and COW. | ||
69 | */ | ||
70 | |||
71 | void *empty_zero_page; | ||
72 | EXPORT_SYMBOL(empty_zero_page); | ||
73 | |||
74 | extern void init_pointer_table(unsigned long ptable); | ||
75 | |||
76 | /* References to section boundaries */ | ||
77 | |||
78 | extern pmd_t *zero_pgtable; | ||
79 | |||
80 | void __init mem_init(void) | ||
81 | { | ||
82 | pg_data_t *pgdat; | ||
83 | int codepages = 0; | ||
84 | int datapages = 0; | ||
85 | int initpages = 0; | ||
86 | int i; | ||
87 | |||
88 | #ifdef CONFIG_ATARI | ||
89 | if (MACH_IS_ATARI) | ||
90 | atari_stram_mem_init_hook(); | ||
91 | #endif | ||
92 | |||
93 | /* this will put all memory onto the freelists */ | ||
94 | totalram_pages = num_physpages = 0; | ||
95 | for_each_online_pgdat(pgdat) { | ||
96 | num_physpages += pgdat->node_present_pages; | ||
97 | |||
98 | totalram_pages += free_all_bootmem_node(pgdat); | ||
99 | for (i = 0; i < pgdat->node_spanned_pages; i++) { | ||
100 | struct page *page = pgdat->node_mem_map + i; | ||
101 | char *addr = page_to_virt(page); | ||
102 | |||
103 | if (!PageReserved(page)) | ||
104 | continue; | ||
105 | if (addr >= _text && | ||
106 | addr < _etext) | ||
107 | codepages++; | ||
108 | else if (addr >= __init_begin && | ||
109 | addr < __init_end) | ||
110 | initpages++; | ||
111 | else | ||
112 | datapages++; | ||
113 | } | ||
114 | } | ||
115 | |||
116 | #ifndef CONFIG_SUN3 | ||
117 | /* insert pointer tables allocated so far into the tablelist */ | ||
118 | init_pointer_table((unsigned long)kernel_pg_dir); | ||
119 | for (i = 0; i < PTRS_PER_PGD; i++) { | ||
120 | if (pgd_present(kernel_pg_dir[i])) | ||
121 | init_pointer_table(__pgd_page(kernel_pg_dir[i])); | ||
122 | } | ||
123 | |||
124 | /* insert also pointer table that we used to unmap the zero page */ | ||
125 | if (zero_pgtable) | ||
126 | init_pointer_table((unsigned long)zero_pgtable); | ||
127 | #endif | ||
128 | |||
129 | printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", | ||
130 | nr_free_pages() << (PAGE_SHIFT-10), | ||
131 | totalram_pages << (PAGE_SHIFT-10), | ||
132 | codepages << (PAGE_SHIFT-10), | ||
133 | datapages << (PAGE_SHIFT-10), | ||
134 | initpages << (PAGE_SHIFT-10)); | ||
135 | } | ||
136 | |||
137 | #ifdef CONFIG_BLK_DEV_INITRD | ||
138 | void free_initrd_mem(unsigned long start, unsigned long end) | ||
139 | { | ||
140 | int pages = 0; | ||
141 | for (; start < end; start += PAGE_SIZE) { | ||
142 | ClearPageReserved(virt_to_page(start)); | ||
143 | init_page_count(virt_to_page(start)); | ||
144 | free_page(start); | ||
145 | totalram_pages++; | ||
146 | pages++; | ||
147 | } | ||
148 | printk ("Freeing initrd memory: %dk freed\n", pages); | ||
149 | } | ||
150 | #endif | ||
diff --git a/arch/m68knommu/mm/init.c b/arch/m68k/mm/init_no.c index 8a6653f56bd8..8a6653f56bd8 100644 --- a/arch/m68knommu/mm/init.c +++ b/arch/m68k/mm/init_no.c | |||
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 69345849454b..a373d136b2b2 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c | |||
@@ -1,367 +1,5 @@ | |||
1 | /* | 1 | #ifdef CONFIG_MMU |
2 | * linux/arch/m68k/mm/kmap.c | 2 | #include "kmap_mm.c" |
3 | * | ||
4 | * Copyright (C) 1997 Roman Hodek | ||
5 | * | ||
6 | * 10/01/99 cleaned up the code and changing to the same interface | ||
7 | * used by other architectures /Roman Zippel | ||
8 | */ | ||
9 | |||
10 | #include <linux/module.h> | ||
11 | #include <linux/mm.h> | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/string.h> | ||
14 | #include <linux/types.h> | ||
15 | #include <linux/slab.h> | ||
16 | #include <linux/vmalloc.h> | ||
17 | |||
18 | #include <asm/setup.h> | ||
19 | #include <asm/segment.h> | ||
20 | #include <asm/page.h> | ||
21 | #include <asm/pgalloc.h> | ||
22 | #include <asm/io.h> | ||
23 | #include <asm/system.h> | ||
24 | |||
25 | #undef DEBUG | ||
26 | |||
27 | #define PTRTREESIZE (256*1024) | ||
28 | |||
29 | /* | ||
30 | * For 040/060 we can use the virtual memory area like other architectures, | ||
31 | * but for 020/030 we want to use early termination page descriptor and we | ||
32 | * can't mix this with normal page descriptors, so we have to copy that code | ||
33 | * (mm/vmalloc.c) and return appriorate aligned addresses. | ||
34 | */ | ||
35 | |||
36 | #ifdef CPU_M68040_OR_M68060_ONLY | ||
37 | |||
38 | #define IO_SIZE PAGE_SIZE | ||
39 | |||
40 | static inline struct vm_struct *get_io_area(unsigned long size) | ||
41 | { | ||
42 | return get_vm_area(size, VM_IOREMAP); | ||
43 | } | ||
44 | |||
45 | |||
46 | static inline void free_io_area(void *addr) | ||
47 | { | ||
48 | vfree((void *)(PAGE_MASK & (unsigned long)addr)); | ||
49 | } | ||
50 | |||
51 | #else | 3 | #else |
52 | 4 | #include "kmap_no.c" | |
53 | #define IO_SIZE (256*1024) | ||
54 | |||
55 | static struct vm_struct *iolist; | ||
56 | |||
57 | static struct vm_struct *get_io_area(unsigned long size) | ||
58 | { | ||
59 | unsigned long addr; | ||
60 | struct vm_struct **p, *tmp, *area; | ||
61 | |||
62 | area = kmalloc(sizeof(*area), GFP_KERNEL); | ||
63 | if (!area) | ||
64 | return NULL; | ||
65 | addr = KMAP_START; | ||
66 | for (p = &iolist; (tmp = *p) ; p = &tmp->next) { | ||
67 | if (size + addr < (unsigned long)tmp->addr) | ||
68 | break; | ||
69 | if (addr > KMAP_END-size) { | ||
70 | kfree(area); | ||
71 | return NULL; | ||
72 | } | ||
73 | addr = tmp->size + (unsigned long)tmp->addr; | ||
74 | } | ||
75 | area->addr = (void *)addr; | ||
76 | area->size = size + IO_SIZE; | ||
77 | area->next = *p; | ||
78 | *p = area; | ||
79 | return area; | ||
80 | } | ||
81 | |||
82 | static inline void free_io_area(void *addr) | ||
83 | { | ||
84 | struct vm_struct **p, *tmp; | ||
85 | |||
86 | if (!addr) | ||
87 | return; | ||
88 | addr = (void *)((unsigned long)addr & -IO_SIZE); | ||
89 | for (p = &iolist ; (tmp = *p) ; p = &tmp->next) { | ||
90 | if (tmp->addr == addr) { | ||
91 | *p = tmp->next; | ||
92 | __iounmap(tmp->addr, tmp->size); | ||
93 | kfree(tmp); | ||
94 | return; | ||
95 | } | ||
96 | } | ||
97 | } | ||
98 | |||
99 | #endif | 5 | #endif |
100 | |||
101 | /* | ||
102 | * Map some physical address range into the kernel address space. | ||
103 | */ | ||
104 | /* Rewritten by Andreas Schwab to remove all races. */ | ||
105 | |||
106 | void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) | ||
107 | { | ||
108 | struct vm_struct *area; | ||
109 | unsigned long virtaddr, retaddr; | ||
110 | long offset; | ||
111 | pgd_t *pgd_dir; | ||
112 | pmd_t *pmd_dir; | ||
113 | pte_t *pte_dir; | ||
114 | |||
115 | /* | ||
116 | * Don't allow mappings that wrap.. | ||
117 | */ | ||
118 | if (!size || physaddr > (unsigned long)(-size)) | ||
119 | return NULL; | ||
120 | |||
121 | #ifdef CONFIG_AMIGA | ||
122 | if (MACH_IS_AMIGA) { | ||
123 | if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000) | ||
124 | && (cacheflag == IOMAP_NOCACHE_SER)) | ||
125 | return (void __iomem *)physaddr; | ||
126 | } | ||
127 | #endif | ||
128 | |||
129 | #ifdef DEBUG | ||
130 | printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag); | ||
131 | #endif | ||
132 | /* | ||
133 | * Mappings have to be aligned | ||
134 | */ | ||
135 | offset = physaddr & (IO_SIZE - 1); | ||
136 | physaddr &= -IO_SIZE; | ||
137 | size = (size + offset + IO_SIZE - 1) & -IO_SIZE; | ||
138 | |||
139 | /* | ||
140 | * Ok, go for it.. | ||
141 | */ | ||
142 | area = get_io_area(size); | ||
143 | if (!area) | ||
144 | return NULL; | ||
145 | |||
146 | virtaddr = (unsigned long)area->addr; | ||
147 | retaddr = virtaddr + offset; | ||
148 | #ifdef DEBUG | ||
149 | printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr); | ||
150 | #endif | ||
151 | |||
152 | /* | ||
153 | * add cache and table flags to physical address | ||
154 | */ | ||
155 | if (CPU_IS_040_OR_060) { | ||
156 | physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 | | ||
157 | _PAGE_ACCESSED | _PAGE_DIRTY); | ||
158 | switch (cacheflag) { | ||
159 | case IOMAP_FULL_CACHING: | ||
160 | physaddr |= _PAGE_CACHE040; | ||
161 | break; | ||
162 | case IOMAP_NOCACHE_SER: | ||
163 | default: | ||
164 | physaddr |= _PAGE_NOCACHE_S; | ||
165 | break; | ||
166 | case IOMAP_NOCACHE_NONSER: | ||
167 | physaddr |= _PAGE_NOCACHE; | ||
168 | break; | ||
169 | case IOMAP_WRITETHROUGH: | ||
170 | physaddr |= _PAGE_CACHE040W; | ||
171 | break; | ||
172 | } | ||
173 | } else { | ||
174 | physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); | ||
175 | switch (cacheflag) { | ||
176 | case IOMAP_NOCACHE_SER: | ||
177 | case IOMAP_NOCACHE_NONSER: | ||
178 | default: | ||
179 | physaddr |= _PAGE_NOCACHE030; | ||
180 | break; | ||
181 | case IOMAP_FULL_CACHING: | ||
182 | case IOMAP_WRITETHROUGH: | ||
183 | break; | ||
184 | } | ||
185 | } | ||
186 | |||
187 | while ((long)size > 0) { | ||
188 | #ifdef DEBUG | ||
189 | if (!(virtaddr & (PTRTREESIZE-1))) | ||
190 | printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr); | ||
191 | #endif | ||
192 | pgd_dir = pgd_offset_k(virtaddr); | ||
193 | pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr); | ||
194 | if (!pmd_dir) { | ||
195 | printk("ioremap: no mem for pmd_dir\n"); | ||
196 | return NULL; | ||
197 | } | ||
198 | |||
199 | if (CPU_IS_020_OR_030) { | ||
200 | pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; | ||
201 | physaddr += PTRTREESIZE; | ||
202 | virtaddr += PTRTREESIZE; | ||
203 | size -= PTRTREESIZE; | ||
204 | } else { | ||
205 | pte_dir = pte_alloc_kernel(pmd_dir, virtaddr); | ||
206 | if (!pte_dir) { | ||
207 | printk("ioremap: no mem for pte_dir\n"); | ||
208 | return NULL; | ||
209 | } | ||
210 | |||
211 | pte_val(*pte_dir) = physaddr; | ||
212 | virtaddr += PAGE_SIZE; | ||
213 | physaddr += PAGE_SIZE; | ||
214 | size -= PAGE_SIZE; | ||
215 | } | ||
216 | } | ||
217 | #ifdef DEBUG | ||
218 | printk("\n"); | ||
219 | #endif | ||
220 | flush_tlb_all(); | ||
221 | |||
222 | return (void __iomem *)retaddr; | ||
223 | } | ||
224 | EXPORT_SYMBOL(__ioremap); | ||
225 | |||
226 | /* | ||
227 | * Unmap a ioremap()ed region again | ||
228 | */ | ||
229 | void iounmap(void __iomem *addr) | ||
230 | { | ||
231 | #ifdef CONFIG_AMIGA | ||
232 | if ((!MACH_IS_AMIGA) || | ||
233 | (((unsigned long)addr < 0x40000000) || | ||
234 | ((unsigned long)addr > 0x60000000))) | ||
235 | free_io_area((__force void *)addr); | ||
236 | #else | ||
237 | free_io_area((__force void *)addr); | ||
238 | #endif | ||
239 | } | ||
240 | EXPORT_SYMBOL(iounmap); | ||
241 | |||
242 | /* | ||
243 | * __iounmap unmaps nearly everything, so be careful | ||
244 | * it doesn't free currently pointer/page tables anymore but it | ||
245 | * wans't used anyway and might be added later. | ||
246 | */ | ||
247 | void __iounmap(void *addr, unsigned long size) | ||
248 | { | ||
249 | unsigned long virtaddr = (unsigned long)addr; | ||
250 | pgd_t *pgd_dir; | ||
251 | pmd_t *pmd_dir; | ||
252 | pte_t *pte_dir; | ||
253 | |||
254 | while ((long)size > 0) { | ||
255 | pgd_dir = pgd_offset_k(virtaddr); | ||
256 | if (pgd_bad(*pgd_dir)) { | ||
257 | printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); | ||
258 | pgd_clear(pgd_dir); | ||
259 | return; | ||
260 | } | ||
261 | pmd_dir = pmd_offset(pgd_dir, virtaddr); | ||
262 | |||
263 | if (CPU_IS_020_OR_030) { | ||
264 | int pmd_off = (virtaddr/PTRTREESIZE) & 15; | ||
265 | int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; | ||
266 | |||
267 | if (pmd_type == _PAGE_PRESENT) { | ||
268 | pmd_dir->pmd[pmd_off] = 0; | ||
269 | virtaddr += PTRTREESIZE; | ||
270 | size -= PTRTREESIZE; | ||
271 | continue; | ||
272 | } else if (pmd_type == 0) | ||
273 | continue; | ||
274 | } | ||
275 | |||
276 | if (pmd_bad(*pmd_dir)) { | ||
277 | printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); | ||
278 | pmd_clear(pmd_dir); | ||
279 | return; | ||
280 | } | ||
281 | pte_dir = pte_offset_kernel(pmd_dir, virtaddr); | ||
282 | |||
283 | pte_val(*pte_dir) = 0; | ||
284 | virtaddr += PAGE_SIZE; | ||
285 | size -= PAGE_SIZE; | ||
286 | } | ||
287 | |||
288 | flush_tlb_all(); | ||
289 | } | ||
290 | |||
291 | /* | ||
292 | * Set new cache mode for some kernel address space. | ||
293 | * The caller must push data for that range itself, if such data may already | ||
294 | * be in the cache. | ||
295 | */ | ||
296 | void kernel_set_cachemode(void *addr, unsigned long size, int cmode) | ||
297 | { | ||
298 | unsigned long virtaddr = (unsigned long)addr; | ||
299 | pgd_t *pgd_dir; | ||
300 | pmd_t *pmd_dir; | ||
301 | pte_t *pte_dir; | ||
302 | |||
303 | if (CPU_IS_040_OR_060) { | ||
304 | switch (cmode) { | ||
305 | case IOMAP_FULL_CACHING: | ||
306 | cmode = _PAGE_CACHE040; | ||
307 | break; | ||
308 | case IOMAP_NOCACHE_SER: | ||
309 | default: | ||
310 | cmode = _PAGE_NOCACHE_S; | ||
311 | break; | ||
312 | case IOMAP_NOCACHE_NONSER: | ||
313 | cmode = _PAGE_NOCACHE; | ||
314 | break; | ||
315 | case IOMAP_WRITETHROUGH: | ||
316 | cmode = _PAGE_CACHE040W; | ||
317 | break; | ||
318 | } | ||
319 | } else { | ||
320 | switch (cmode) { | ||
321 | case IOMAP_NOCACHE_SER: | ||
322 | case IOMAP_NOCACHE_NONSER: | ||
323 | default: | ||
324 | cmode = _PAGE_NOCACHE030; | ||
325 | break; | ||
326 | case IOMAP_FULL_CACHING: | ||
327 | case IOMAP_WRITETHROUGH: | ||
328 | cmode = 0; | ||
329 | } | ||
330 | } | ||
331 | |||
332 | while ((long)size > 0) { | ||
333 | pgd_dir = pgd_offset_k(virtaddr); | ||
334 | if (pgd_bad(*pgd_dir)) { | ||
335 | printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); | ||
336 | pgd_clear(pgd_dir); | ||
337 | return; | ||
338 | } | ||
339 | pmd_dir = pmd_offset(pgd_dir, virtaddr); | ||
340 | |||
341 | if (CPU_IS_020_OR_030) { | ||
342 | int pmd_off = (virtaddr/PTRTREESIZE) & 15; | ||
343 | |||
344 | if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { | ||
345 | pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] & | ||
346 | _CACHEMASK040) | cmode; | ||
347 | virtaddr += PTRTREESIZE; | ||
348 | size -= PTRTREESIZE; | ||
349 | continue; | ||
350 | } | ||
351 | } | ||
352 | |||
353 | if (pmd_bad(*pmd_dir)) { | ||
354 | printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); | ||
355 | pmd_clear(pmd_dir); | ||
356 | return; | ||
357 | } | ||
358 | pte_dir = pte_offset_kernel(pmd_dir, virtaddr); | ||
359 | |||
360 | pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode; | ||
361 | virtaddr += PAGE_SIZE; | ||
362 | size -= PAGE_SIZE; | ||
363 | } | ||
364 | |||
365 | flush_tlb_all(); | ||
366 | } | ||
367 | EXPORT_SYMBOL(kernel_set_cachemode); | ||
diff --git a/arch/m68k/mm/kmap_mm.c b/arch/m68k/mm/kmap_mm.c new file mode 100644 index 000000000000..69345849454b --- /dev/null +++ b/arch/m68k/mm/kmap_mm.c | |||
@@ -0,0 +1,367 @@ | |||
1 | /* | ||
2 | * linux/arch/m68k/mm/kmap.c | ||
3 | * | ||
4 | * Copyright (C) 1997 Roman Hodek | ||
5 | * | ||
6 | * 10/01/99 cleaned up the code and changing to the same interface | ||
7 | * used by other architectures /Roman Zippel | ||
8 | */ | ||
9 | |||
10 | #include <linux/module.h> | ||
11 | #include <linux/mm.h> | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/string.h> | ||
14 | #include <linux/types.h> | ||
15 | #include <linux/slab.h> | ||
16 | #include <linux/vmalloc.h> | ||
17 | |||
18 | #include <asm/setup.h> | ||
19 | #include <asm/segment.h> | ||
20 | #include <asm/page.h> | ||
21 | #include <asm/pgalloc.h> | ||
22 | #include <asm/io.h> | ||
23 | #include <asm/system.h> | ||
24 | |||
25 | #undef DEBUG | ||
26 | |||
27 | #define PTRTREESIZE (256*1024) | ||
28 | |||
29 | /* | ||
30 | * For 040/060 we can use the virtual memory area like other architectures, | ||
31 | * but for 020/030 we want to use early termination page descriptor and we | ||
32 | * can't mix this with normal page descriptors, so we have to copy that code | ||
33 | * (mm/vmalloc.c) and return appriorate aligned addresses. | ||
34 | */ | ||
35 | |||
36 | #ifdef CPU_M68040_OR_M68060_ONLY | ||
37 | |||
38 | #define IO_SIZE PAGE_SIZE | ||
39 | |||
40 | static inline struct vm_struct *get_io_area(unsigned long size) | ||
41 | { | ||
42 | return get_vm_area(size, VM_IOREMAP); | ||
43 | } | ||
44 | |||
45 | |||
46 | static inline void free_io_area(void *addr) | ||
47 | { | ||
48 | vfree((void *)(PAGE_MASK & (unsigned long)addr)); | ||
49 | } | ||
50 | |||
51 | #else | ||
52 | |||
53 | #define IO_SIZE (256*1024) | ||
54 | |||
55 | static struct vm_struct *iolist; | ||
56 | |||
57 | static struct vm_struct *get_io_area(unsigned long size) | ||
58 | { | ||
59 | unsigned long addr; | ||
60 | struct vm_struct **p, *tmp, *area; | ||
61 | |||
62 | area = kmalloc(sizeof(*area), GFP_KERNEL); | ||
63 | if (!area) | ||
64 | return NULL; | ||
65 | addr = KMAP_START; | ||
66 | for (p = &iolist; (tmp = *p) ; p = &tmp->next) { | ||
67 | if (size + addr < (unsigned long)tmp->addr) | ||
68 | break; | ||
69 | if (addr > KMAP_END-size) { | ||
70 | kfree(area); | ||
71 | return NULL; | ||
72 | } | ||
73 | addr = tmp->size + (unsigned long)tmp->addr; | ||
74 | } | ||
75 | area->addr = (void *)addr; | ||
76 | area->size = size + IO_SIZE; | ||
77 | area->next = *p; | ||
78 | *p = area; | ||
79 | return area; | ||
80 | } | ||
81 | |||
82 | static inline void free_io_area(void *addr) | ||
83 | { | ||
84 | struct vm_struct **p, *tmp; | ||
85 | |||
86 | if (!addr) | ||
87 | return; | ||
88 | addr = (void *)((unsigned long)addr & -IO_SIZE); | ||
89 | for (p = &iolist ; (tmp = *p) ; p = &tmp->next) { | ||
90 | if (tmp->addr == addr) { | ||
91 | *p = tmp->next; | ||
92 | __iounmap(tmp->addr, tmp->size); | ||
93 | kfree(tmp); | ||
94 | return; | ||
95 | } | ||
96 | } | ||
97 | } | ||
98 | |||
99 | #endif | ||
100 | |||
101 | /* | ||
102 | * Map some physical address range into the kernel address space. | ||
103 | */ | ||
104 | /* Rewritten by Andreas Schwab to remove all races. */ | ||
105 | |||
106 | void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) | ||
107 | { | ||
108 | struct vm_struct *area; | ||
109 | unsigned long virtaddr, retaddr; | ||
110 | long offset; | ||
111 | pgd_t *pgd_dir; | ||
112 | pmd_t *pmd_dir; | ||
113 | pte_t *pte_dir; | ||
114 | |||
115 | /* | ||
116 | * Don't allow mappings that wrap.. | ||
117 | */ | ||
118 | if (!size || physaddr > (unsigned long)(-size)) | ||
119 | return NULL; | ||
120 | |||
121 | #ifdef CONFIG_AMIGA | ||
122 | if (MACH_IS_AMIGA) { | ||
123 | if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000) | ||
124 | && (cacheflag == IOMAP_NOCACHE_SER)) | ||
125 | return (void __iomem *)physaddr; | ||
126 | } | ||
127 | #endif | ||
128 | |||
129 | #ifdef DEBUG | ||
130 | printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag); | ||
131 | #endif | ||
132 | /* | ||
133 | * Mappings have to be aligned | ||
134 | */ | ||
135 | offset = physaddr & (IO_SIZE - 1); | ||
136 | physaddr &= -IO_SIZE; | ||
137 | size = (size + offset + IO_SIZE - 1) & -IO_SIZE; | ||
138 | |||
139 | /* | ||
140 | * Ok, go for it.. | ||
141 | */ | ||
142 | area = get_io_area(size); | ||
143 | if (!area) | ||
144 | return NULL; | ||
145 | |||
146 | virtaddr = (unsigned long)area->addr; | ||
147 | retaddr = virtaddr + offset; | ||
148 | #ifdef DEBUG | ||
149 | printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr); | ||
150 | #endif | ||
151 | |||
152 | /* | ||
153 | * add cache and table flags to physical address | ||
154 | */ | ||
155 | if (CPU_IS_040_OR_060) { | ||
156 | physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 | | ||
157 | _PAGE_ACCESSED | _PAGE_DIRTY); | ||
158 | switch (cacheflag) { | ||
159 | case IOMAP_FULL_CACHING: | ||
160 | physaddr |= _PAGE_CACHE040; | ||
161 | break; | ||
162 | case IOMAP_NOCACHE_SER: | ||
163 | default: | ||
164 | physaddr |= _PAGE_NOCACHE_S; | ||
165 | break; | ||
166 | case IOMAP_NOCACHE_NONSER: | ||
167 | physaddr |= _PAGE_NOCACHE; | ||
168 | break; | ||
169 | case IOMAP_WRITETHROUGH: | ||
170 | physaddr |= _PAGE_CACHE040W; | ||
171 | break; | ||
172 | } | ||
173 | } else { | ||
174 | physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); | ||
175 | switch (cacheflag) { | ||
176 | case IOMAP_NOCACHE_SER: | ||
177 | case IOMAP_NOCACHE_NONSER: | ||
178 | default: | ||
179 | physaddr |= _PAGE_NOCACHE030; | ||
180 | break; | ||
181 | case IOMAP_FULL_CACHING: | ||
182 | case IOMAP_WRITETHROUGH: | ||
183 | break; | ||
184 | } | ||
185 | } | ||
186 | |||
187 | while ((long)size > 0) { | ||
188 | #ifdef DEBUG | ||
189 | if (!(virtaddr & (PTRTREESIZE-1))) | ||
190 | printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr); | ||
191 | #endif | ||
192 | pgd_dir = pgd_offset_k(virtaddr); | ||
193 | pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr); | ||
194 | if (!pmd_dir) { | ||
195 | printk("ioremap: no mem for pmd_dir\n"); | ||
196 | return NULL; | ||
197 | } | ||
198 | |||
199 | if (CPU_IS_020_OR_030) { | ||
200 | pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; | ||
201 | physaddr += PTRTREESIZE; | ||
202 | virtaddr += PTRTREESIZE; | ||
203 | size -= PTRTREESIZE; | ||
204 | } else { | ||
205 | pte_dir = pte_alloc_kernel(pmd_dir, virtaddr); | ||
206 | if (!pte_dir) { | ||
207 | printk("ioremap: no mem for pte_dir\n"); | ||
208 | return NULL; | ||
209 | } | ||
210 | |||
211 | pte_val(*pte_dir) = physaddr; | ||
212 | virtaddr += PAGE_SIZE; | ||
213 | physaddr += PAGE_SIZE; | ||
214 | size -= PAGE_SIZE; | ||
215 | } | ||
216 | } | ||
217 | #ifdef DEBUG | ||
218 | printk("\n"); | ||
219 | #endif | ||
220 | flush_tlb_all(); | ||
221 | |||
222 | return (void __iomem *)retaddr; | ||
223 | } | ||
224 | EXPORT_SYMBOL(__ioremap); | ||
225 | |||
226 | /* | ||
227 | * Unmap a ioremap()ed region again | ||
228 | */ | ||
229 | void iounmap(void __iomem *addr) | ||
230 | { | ||
231 | #ifdef CONFIG_AMIGA | ||
232 | if ((!MACH_IS_AMIGA) || | ||
233 | (((unsigned long)addr < 0x40000000) || | ||
234 | ((unsigned long)addr > 0x60000000))) | ||
235 | free_io_area((__force void *)addr); | ||
236 | #else | ||
237 | free_io_area((__force void *)addr); | ||
238 | #endif | ||
239 | } | ||
240 | EXPORT_SYMBOL(iounmap); | ||
241 | |||
242 | /* | ||
243 | * __iounmap unmaps nearly everything, so be careful | ||
244 | * it doesn't free currently pointer/page tables anymore but it | ||
245 | * wans't used anyway and might be added later. | ||
246 | */ | ||
247 | void __iounmap(void *addr, unsigned long size) | ||
248 | { | ||
249 | unsigned long virtaddr = (unsigned long)addr; | ||
250 | pgd_t *pgd_dir; | ||
251 | pmd_t *pmd_dir; | ||
252 | pte_t *pte_dir; | ||
253 | |||
254 | while ((long)size > 0) { | ||
255 | pgd_dir = pgd_offset_k(virtaddr); | ||
256 | if (pgd_bad(*pgd_dir)) { | ||
257 | printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); | ||
258 | pgd_clear(pgd_dir); | ||
259 | return; | ||
260 | } | ||
261 | pmd_dir = pmd_offset(pgd_dir, virtaddr); | ||
262 | |||
263 | if (CPU_IS_020_OR_030) { | ||
264 | int pmd_off = (virtaddr/PTRTREESIZE) & 15; | ||
265 | int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; | ||
266 | |||
267 | if (pmd_type == _PAGE_PRESENT) { | ||
268 | pmd_dir->pmd[pmd_off] = 0; | ||
269 | virtaddr += PTRTREESIZE; | ||
270 | size -= PTRTREESIZE; | ||
271 | continue; | ||
272 | } else if (pmd_type == 0) | ||
273 | continue; | ||
274 | } | ||
275 | |||
276 | if (pmd_bad(*pmd_dir)) { | ||
277 | printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); | ||
278 | pmd_clear(pmd_dir); | ||
279 | return; | ||
280 | } | ||
281 | pte_dir = pte_offset_kernel(pmd_dir, virtaddr); | ||
282 | |||
283 | pte_val(*pte_dir) = 0; | ||
284 | virtaddr += PAGE_SIZE; | ||
285 | size -= PAGE_SIZE; | ||
286 | } | ||
287 | |||
288 | flush_tlb_all(); | ||
289 | } | ||
290 | |||
291 | /* | ||
292 | * Set new cache mode for some kernel address space. | ||
293 | * The caller must push data for that range itself, if such data may already | ||
294 | * be in the cache. | ||
295 | */ | ||
296 | void kernel_set_cachemode(void *addr, unsigned long size, int cmode) | ||
297 | { | ||
298 | unsigned long virtaddr = (unsigned long)addr; | ||
299 | pgd_t *pgd_dir; | ||
300 | pmd_t *pmd_dir; | ||
301 | pte_t *pte_dir; | ||
302 | |||
303 | if (CPU_IS_040_OR_060) { | ||
304 | switch (cmode) { | ||
305 | case IOMAP_FULL_CACHING: | ||
306 | cmode = _PAGE_CACHE040; | ||
307 | break; | ||
308 | case IOMAP_NOCACHE_SER: | ||
309 | default: | ||
310 | cmode = _PAGE_NOCACHE_S; | ||
311 | break; | ||
312 | case IOMAP_NOCACHE_NONSER: | ||
313 | cmode = _PAGE_NOCACHE; | ||
314 | break; | ||
315 | case IOMAP_WRITETHROUGH: | ||
316 | cmode = _PAGE_CACHE040W; | ||
317 | break; | ||
318 | } | ||
319 | } else { | ||
320 | switch (cmode) { | ||
321 | case IOMAP_NOCACHE_SER: | ||
322 | case IOMAP_NOCACHE_NONSER: | ||
323 | default: | ||
324 | cmode = _PAGE_NOCACHE030; | ||
325 | break; | ||
326 | case IOMAP_FULL_CACHING: | ||
327 | case IOMAP_WRITETHROUGH: | ||
328 | cmode = 0; | ||
329 | } | ||
330 | } | ||
331 | |||
332 | while ((long)size > 0) { | ||
333 | pgd_dir = pgd_offset_k(virtaddr); | ||
334 | if (pgd_bad(*pgd_dir)) { | ||
335 | printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); | ||
336 | pgd_clear(pgd_dir); | ||
337 | return; | ||
338 | } | ||
339 | pmd_dir = pmd_offset(pgd_dir, virtaddr); | ||
340 | |||
341 | if (CPU_IS_020_OR_030) { | ||
342 | int pmd_off = (virtaddr/PTRTREESIZE) & 15; | ||
343 | |||
344 | if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { | ||
345 | pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] & | ||
346 | _CACHEMASK040) | cmode; | ||
347 | virtaddr += PTRTREESIZE; | ||
348 | size -= PTRTREESIZE; | ||
349 | continue; | ||
350 | } | ||
351 | } | ||
352 | |||
353 | if (pmd_bad(*pmd_dir)) { | ||
354 | printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); | ||
355 | pmd_clear(pmd_dir); | ||
356 | return; | ||
357 | } | ||
358 | pte_dir = pte_offset_kernel(pmd_dir, virtaddr); | ||
359 | |||
360 | pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode; | ||
361 | virtaddr += PAGE_SIZE; | ||
362 | size -= PAGE_SIZE; | ||
363 | } | ||
364 | |||
365 | flush_tlb_all(); | ||
366 | } | ||
367 | EXPORT_SYMBOL(kernel_set_cachemode); | ||
diff --git a/arch/m68knommu/mm/kmap.c b/arch/m68k/mm/kmap_no.c index ece8d5ad4e6c..ece8d5ad4e6c 100644 --- a/arch/m68knommu/mm/kmap.c +++ b/arch/m68k/mm/kmap_no.c | |||
diff --git a/arch/m68knommu/platform/5206/Makefile b/arch/m68k/platform/5206/Makefile index b5db05625cfa..b5db05625cfa 100644 --- a/arch/m68knommu/platform/5206/Makefile +++ b/arch/m68k/platform/5206/Makefile | |||
diff --git a/arch/m68knommu/platform/5206/config.c b/arch/m68k/platform/5206/config.c index 9c335465e66d..9c335465e66d 100644 --- a/arch/m68knommu/platform/5206/config.c +++ b/arch/m68k/platform/5206/config.c | |||
diff --git a/arch/m68knommu/platform/5206/gpio.c b/arch/m68k/platform/5206/gpio.c index b9ab4a120f28..b9ab4a120f28 100644 --- a/arch/m68knommu/platform/5206/gpio.c +++ b/arch/m68k/platform/5206/gpio.c | |||
diff --git a/arch/m68knommu/platform/5206e/Makefile b/arch/m68k/platform/5206e/Makefile index b5db05625cfa..b5db05625cfa 100644 --- a/arch/m68knommu/platform/5206e/Makefile +++ b/arch/m68k/platform/5206e/Makefile | |||
diff --git a/arch/m68knommu/platform/5206e/config.c b/arch/m68k/platform/5206e/config.c index 942397984c66..942397984c66 100644 --- a/arch/m68knommu/platform/5206e/config.c +++ b/arch/m68k/platform/5206e/config.c | |||
diff --git a/arch/m68knommu/platform/5206e/gpio.c b/arch/m68k/platform/5206e/gpio.c index b9ab4a120f28..b9ab4a120f28 100644 --- a/arch/m68knommu/platform/5206e/gpio.c +++ b/arch/m68k/platform/5206e/gpio.c | |||
diff --git a/arch/m68knommu/platform/520x/Makefile b/arch/m68k/platform/520x/Makefile index ad3f4e5a57ce..ad3f4e5a57ce 100644 --- a/arch/m68knommu/platform/520x/Makefile +++ b/arch/m68k/platform/520x/Makefile | |||
diff --git a/arch/m68knommu/platform/520x/config.c b/arch/m68k/platform/520x/config.c index 621238f1a219..621238f1a219 100644 --- a/arch/m68knommu/platform/520x/config.c +++ b/arch/m68k/platform/520x/config.c | |||
diff --git a/arch/m68knommu/platform/520x/gpio.c b/arch/m68k/platform/520x/gpio.c index d757328563d1..d757328563d1 100644 --- a/arch/m68knommu/platform/520x/gpio.c +++ b/arch/m68k/platform/520x/gpio.c | |||
diff --git a/arch/m68knommu/platform/523x/Makefile b/arch/m68k/platform/523x/Makefile index c04b8f71c88c..c04b8f71c88c 100644 --- a/arch/m68knommu/platform/523x/Makefile +++ b/arch/m68k/platform/523x/Makefile | |||
diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68k/platform/523x/config.c index 418a76feb1e3..418a76feb1e3 100644 --- a/arch/m68knommu/platform/523x/config.c +++ b/arch/m68k/platform/523x/config.c | |||
diff --git a/arch/m68knommu/platform/523x/gpio.c b/arch/m68k/platform/523x/gpio.c index 327ebf142c8e..327ebf142c8e 100644 --- a/arch/m68knommu/platform/523x/gpio.c +++ b/arch/m68k/platform/523x/gpio.c | |||
diff --git a/arch/m68knommu/platform/5249/Makefile b/arch/m68k/platform/5249/Makefile index 4bed30fd0073..4bed30fd0073 100644 --- a/arch/m68knommu/platform/5249/Makefile +++ b/arch/m68k/platform/5249/Makefile | |||
diff --git a/arch/m68knommu/platform/5249/config.c b/arch/m68k/platform/5249/config.c index ceb31e5744a6..ceb31e5744a6 100644 --- a/arch/m68knommu/platform/5249/config.c +++ b/arch/m68k/platform/5249/config.c | |||
diff --git a/arch/m68knommu/platform/5249/gpio.c b/arch/m68k/platform/5249/gpio.c index 2b56c6ef65bf..2b56c6ef65bf 100644 --- a/arch/m68knommu/platform/5249/gpio.c +++ b/arch/m68k/platform/5249/gpio.c | |||
diff --git a/arch/m68knommu/platform/5249/intc2.c b/arch/m68k/platform/5249/intc2.c index 8f4b63e17366..8f4b63e17366 100644 --- a/arch/m68knommu/platform/5249/intc2.c +++ b/arch/m68k/platform/5249/intc2.c | |||
diff --git a/arch/m68knommu/platform/5272/Makefile b/arch/m68k/platform/5272/Makefile index 34110fc14301..34110fc14301 100644 --- a/arch/m68knommu/platform/5272/Makefile +++ b/arch/m68k/platform/5272/Makefile | |||
diff --git a/arch/m68knommu/platform/5272/config.c b/arch/m68k/platform/5272/config.c index 65bb582734e1..65bb582734e1 100644 --- a/arch/m68knommu/platform/5272/config.c +++ b/arch/m68k/platform/5272/config.c | |||
diff --git a/arch/m68knommu/platform/5272/gpio.c b/arch/m68k/platform/5272/gpio.c index 57ac10a5d7f7..57ac10a5d7f7 100644 --- a/arch/m68knommu/platform/5272/gpio.c +++ b/arch/m68k/platform/5272/gpio.c | |||
diff --git a/arch/m68knommu/platform/5272/intc.c b/arch/m68k/platform/5272/intc.c index 969ff0a467c6..969ff0a467c6 100644 --- a/arch/m68knommu/platform/5272/intc.c +++ b/arch/m68k/platform/5272/intc.c | |||
diff --git a/arch/m68knommu/platform/527x/Makefile b/arch/m68k/platform/527x/Makefile index 6ac4b57370ea..6ac4b57370ea 100644 --- a/arch/m68knommu/platform/527x/Makefile +++ b/arch/m68k/platform/527x/Makefile | |||
diff --git a/arch/m68knommu/platform/527x/config.c b/arch/m68k/platform/527x/config.c index fa359593b613..fa359593b613 100644 --- a/arch/m68knommu/platform/527x/config.c +++ b/arch/m68k/platform/527x/config.c | |||
diff --git a/arch/m68knommu/platform/527x/gpio.c b/arch/m68k/platform/527x/gpio.c index 205da0aa0f2d..205da0aa0f2d 100644 --- a/arch/m68knommu/platform/527x/gpio.c +++ b/arch/m68k/platform/527x/gpio.c | |||
diff --git a/arch/m68knommu/platform/528x/Makefile b/arch/m68k/platform/528x/Makefile index 6ac4b57370ea..6ac4b57370ea 100644 --- a/arch/m68knommu/platform/528x/Makefile +++ b/arch/m68k/platform/528x/Makefile | |||
diff --git a/arch/m68knommu/platform/528x/config.c b/arch/m68k/platform/528x/config.c index ac39fc661219..ac39fc661219 100644 --- a/arch/m68knommu/platform/528x/config.c +++ b/arch/m68k/platform/528x/config.c | |||
diff --git a/arch/m68knommu/platform/528x/gpio.c b/arch/m68k/platform/528x/gpio.c index 526db665d87e..526db665d87e 100644 --- a/arch/m68knommu/platform/528x/gpio.c +++ b/arch/m68k/platform/528x/gpio.c | |||
diff --git a/arch/m68knommu/platform/5307/Makefile b/arch/m68k/platform/5307/Makefile index d4293b791f2e..d4293b791f2e 100644 --- a/arch/m68knommu/platform/5307/Makefile +++ b/arch/m68k/platform/5307/Makefile | |||
diff --git a/arch/m68knommu/platform/5307/config.c b/arch/m68k/platform/5307/config.c index 00900ac06a9c..00900ac06a9c 100644 --- a/arch/m68knommu/platform/5307/config.c +++ b/arch/m68k/platform/5307/config.c | |||
diff --git a/arch/m68knommu/platform/5307/gpio.c b/arch/m68k/platform/5307/gpio.c index 5850612b4a38..5850612b4a38 100644 --- a/arch/m68knommu/platform/5307/gpio.c +++ b/arch/m68k/platform/5307/gpio.c | |||
diff --git a/arch/m68knommu/platform/5307/nettel.c b/arch/m68k/platform/5307/nettel.c index e925ea4602f8..e925ea4602f8 100644 --- a/arch/m68knommu/platform/5307/nettel.c +++ b/arch/m68k/platform/5307/nettel.c | |||
diff --git a/arch/m68knommu/platform/532x/Makefile b/arch/m68k/platform/532x/Makefile index ce01669399c6..ce01669399c6 100644 --- a/arch/m68knommu/platform/532x/Makefile +++ b/arch/m68k/platform/532x/Makefile | |||
diff --git a/arch/m68knommu/platform/532x/config.c b/arch/m68k/platform/532x/config.c index ca51323f957b..ca51323f957b 100644 --- a/arch/m68knommu/platform/532x/config.c +++ b/arch/m68k/platform/532x/config.c | |||
diff --git a/arch/m68knommu/platform/532x/gpio.c b/arch/m68k/platform/532x/gpio.c index 212a85deac90..212a85deac90 100644 --- a/arch/m68knommu/platform/532x/gpio.c +++ b/arch/m68k/platform/532x/gpio.c | |||
diff --git a/arch/m68knommu/platform/5407/Makefile b/arch/m68k/platform/5407/Makefile index e83fe148eddc..e83fe148eddc 100644 --- a/arch/m68knommu/platform/5407/Makefile +++ b/arch/m68k/platform/5407/Makefile | |||
diff --git a/arch/m68knommu/platform/5407/config.c b/arch/m68k/platform/5407/config.c index 70ea789a400c..70ea789a400c 100644 --- a/arch/m68knommu/platform/5407/config.c +++ b/arch/m68k/platform/5407/config.c | |||
diff --git a/arch/m68knommu/platform/5407/gpio.c b/arch/m68k/platform/5407/gpio.c index 5850612b4a38..5850612b4a38 100644 --- a/arch/m68knommu/platform/5407/gpio.c +++ b/arch/m68k/platform/5407/gpio.c | |||
diff --git a/arch/m68knommu/platform/54xx/Makefile b/arch/m68k/platform/54xx/Makefile index 6cfd090ec3cd..6cfd090ec3cd 100644 --- a/arch/m68knommu/platform/54xx/Makefile +++ b/arch/m68k/platform/54xx/Makefile | |||
diff --git a/arch/m68knommu/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c index 78130984db95..78130984db95 100644 --- a/arch/m68knommu/platform/54xx/config.c +++ b/arch/m68k/platform/54xx/config.c | |||
diff --git a/arch/m68knommu/platform/54xx/firebee.c b/arch/m68k/platform/54xx/firebee.c index 46d50534f981..46d50534f981 100644 --- a/arch/m68knommu/platform/54xx/firebee.c +++ b/arch/m68k/platform/54xx/firebee.c | |||
diff --git a/arch/m68knommu/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile index 5e5435552d56..5e5435552d56 100644 --- a/arch/m68knommu/platform/68328/Makefile +++ b/arch/m68k/platform/68328/Makefile | |||
diff --git a/arch/m68knommu/platform/68328/bootlogo.h b/arch/m68k/platform/68328/bootlogo.h index 67bc2c17386e..67bc2c17386e 100644 --- a/arch/m68knommu/platform/68328/bootlogo.h +++ b/arch/m68k/platform/68328/bootlogo.h | |||
diff --git a/arch/m68knommu/platform/68328/bootlogo.pl b/arch/m68k/platform/68328/bootlogo.pl index b04ae3f50da5..b04ae3f50da5 100644 --- a/arch/m68knommu/platform/68328/bootlogo.pl +++ b/arch/m68k/platform/68328/bootlogo.pl | |||
diff --git a/arch/m68knommu/platform/68328/config.c b/arch/m68k/platform/68328/config.c index a7bd21deb00f..a7bd21deb00f 100644 --- a/arch/m68knommu/platform/68328/config.c +++ b/arch/m68k/platform/68328/config.c | |||
diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S index 676960cf022a..676960cf022a 100644 --- a/arch/m68knommu/platform/68328/entry.S +++ b/arch/m68k/platform/68328/entry.S | |||
diff --git a/arch/m68knommu/platform/68328/head-de2.S b/arch/m68k/platform/68328/head-de2.S index f632fdcb93e9..f632fdcb93e9 100644 --- a/arch/m68knommu/platform/68328/head-de2.S +++ b/arch/m68k/platform/68328/head-de2.S | |||
diff --git a/arch/m68knommu/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S index aecff532b343..aecff532b343 100644 --- a/arch/m68knommu/platform/68328/head-pilot.S +++ b/arch/m68k/platform/68328/head-pilot.S | |||
diff --git a/arch/m68knommu/platform/68328/head-ram.S b/arch/m68k/platform/68328/head-ram.S index 7f1aeeacb219..7f1aeeacb219 100644 --- a/arch/m68knommu/platform/68328/head-ram.S +++ b/arch/m68k/platform/68328/head-ram.S | |||
diff --git a/arch/m68knommu/platform/68328/head-rom.S b/arch/m68k/platform/68328/head-rom.S index 6ec77d3ea0b3..6ec77d3ea0b3 100644 --- a/arch/m68knommu/platform/68328/head-rom.S +++ b/arch/m68k/platform/68328/head-rom.S | |||
diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68k/platform/68328/ints.c index e5631831a200..e5631831a200 100644 --- a/arch/m68knommu/platform/68328/ints.c +++ b/arch/m68k/platform/68328/ints.c | |||
diff --git a/arch/m68knommu/platform/68328/romvec.S b/arch/m68k/platform/68328/romvec.S index 31084466eae8..31084466eae8 100644 --- a/arch/m68knommu/platform/68328/romvec.S +++ b/arch/m68k/platform/68328/romvec.S | |||
diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68k/platform/68328/timers.c index 309f725995bf..309f725995bf 100644 --- a/arch/m68knommu/platform/68328/timers.c +++ b/arch/m68k/platform/68328/timers.c | |||
diff --git a/arch/m68knommu/platform/68360/Makefile b/arch/m68k/platform/68360/Makefile index cf5af73a5789..cf5af73a5789 100644 --- a/arch/m68knommu/platform/68360/Makefile +++ b/arch/m68k/platform/68360/Makefile | |||
diff --git a/arch/m68knommu/platform/68360/commproc.c b/arch/m68k/platform/68360/commproc.c index 8e4e10cc0080..8e4e10cc0080 100644 --- a/arch/m68knommu/platform/68360/commproc.c +++ b/arch/m68k/platform/68360/commproc.c | |||
diff --git a/arch/m68knommu/platform/68360/config.c b/arch/m68k/platform/68360/config.c index 9dd5bca38749..9dd5bca38749 100644 --- a/arch/m68knommu/platform/68360/config.c +++ b/arch/m68k/platform/68360/config.c | |||
diff --git a/arch/m68knommu/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S index 46c1b18c9dcb..46c1b18c9dcb 100644 --- a/arch/m68knommu/platform/68360/entry.S +++ b/arch/m68k/platform/68360/entry.S | |||
diff --git a/arch/m68knommu/platform/68360/head-ram.S b/arch/m68k/platform/68360/head-ram.S index 8eb94fb6b971..8eb94fb6b971 100644 --- a/arch/m68knommu/platform/68360/head-ram.S +++ b/arch/m68k/platform/68360/head-ram.S | |||
diff --git a/arch/m68knommu/platform/68360/head-rom.S b/arch/m68k/platform/68360/head-rom.S index 97510e55b802..97510e55b802 100644 --- a/arch/m68knommu/platform/68360/head-rom.S +++ b/arch/m68k/platform/68360/head-rom.S | |||
diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68k/platform/68360/ints.c index 8de3feb568c6..8de3feb568c6 100644 --- a/arch/m68knommu/platform/68360/ints.c +++ b/arch/m68k/platform/68360/ints.c | |||
diff --git a/arch/m68knommu/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile index ee97735a242c..ee97735a242c 100644 --- a/arch/m68knommu/platform/68EZ328/Makefile +++ b/arch/m68k/platform/68EZ328/Makefile | |||
diff --git a/arch/m68knommu/platform/68EZ328/bootlogo.h b/arch/m68k/platform/68EZ328/bootlogo.h index e842bdae5839..e842bdae5839 100644 --- a/arch/m68knommu/platform/68EZ328/bootlogo.h +++ b/arch/m68k/platform/68EZ328/bootlogo.h | |||
diff --git a/arch/m68knommu/platform/68EZ328/config.c b/arch/m68k/platform/68EZ328/config.c index 1be1a16f6896..1be1a16f6896 100644 --- a/arch/m68knommu/platform/68EZ328/config.c +++ b/arch/m68k/platform/68EZ328/config.c | |||
diff --git a/arch/m68knommu/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile index 447ffa0fd7c7..447ffa0fd7c7 100644 --- a/arch/m68knommu/platform/68VZ328/Makefile +++ b/arch/m68k/platform/68VZ328/Makefile | |||
diff --git a/arch/m68knommu/platform/68VZ328/config.c b/arch/m68k/platform/68VZ328/config.c index eabaabe8af36..eabaabe8af36 100644 --- a/arch/m68knommu/platform/68VZ328/config.c +++ b/arch/m68k/platform/68VZ328/config.c | |||
diff --git a/arch/m68knommu/platform/Makefile b/arch/m68k/platform/Makefile index fc932bf65d34..fc932bf65d34 100644 --- a/arch/m68knommu/platform/Makefile +++ b/arch/m68k/platform/Makefile | |||
diff --git a/arch/m68knommu/platform/coldfire/Makefile b/arch/m68k/platform/coldfire/Makefile index a8967baabd72..a8967baabd72 100644 --- a/arch/m68knommu/platform/coldfire/Makefile +++ b/arch/m68k/platform/coldfire/Makefile | |||
diff --git a/arch/m68knommu/platform/coldfire/cache.c b/arch/m68k/platform/coldfire/cache.c index 235d3c4f4f0f..235d3c4f4f0f 100644 --- a/arch/m68knommu/platform/coldfire/cache.c +++ b/arch/m68k/platform/coldfire/cache.c | |||
diff --git a/arch/m68knommu/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c index 9f1260c5e2ad..9f1260c5e2ad 100644 --- a/arch/m68knommu/platform/coldfire/clk.c +++ b/arch/m68k/platform/coldfire/clk.c | |||
diff --git a/arch/m68knommu/platform/coldfire/dma.c b/arch/m68k/platform/coldfire/dma.c index e88b95e2cc62..e88b95e2cc62 100644 --- a/arch/m68knommu/platform/coldfire/dma.c +++ b/arch/m68k/platform/coldfire/dma.c | |||
diff --git a/arch/m68knommu/platform/coldfire/dma_timer.c b/arch/m68k/platform/coldfire/dma_timer.c index a5f562823d7a..a5f562823d7a 100644 --- a/arch/m68knommu/platform/coldfire/dma_timer.c +++ b/arch/m68k/platform/coldfire/dma_timer.c | |||
diff --git a/arch/m68knommu/platform/coldfire/entry.S b/arch/m68k/platform/coldfire/entry.S index 5837cf080b6d..5837cf080b6d 100644 --- a/arch/m68knommu/platform/coldfire/entry.S +++ b/arch/m68k/platform/coldfire/entry.S | |||
diff --git a/arch/m68knommu/platform/coldfire/gpio.c b/arch/m68k/platform/coldfire/gpio.c index ff0045793450..ff0045793450 100644 --- a/arch/m68knommu/platform/coldfire/gpio.c +++ b/arch/m68k/platform/coldfire/gpio.c | |||
diff --git a/arch/m68knommu/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S index 129bff4956b5..129bff4956b5 100644 --- a/arch/m68knommu/platform/coldfire/head.S +++ b/arch/m68k/platform/coldfire/head.S | |||
diff --git a/arch/m68knommu/platform/coldfire/intc-2.c b/arch/m68k/platform/coldfire/intc-2.c index 2cbfbf035db9..2cbfbf035db9 100644 --- a/arch/m68knommu/platform/coldfire/intc-2.c +++ b/arch/m68k/platform/coldfire/intc-2.c | |||
diff --git a/arch/m68knommu/platform/coldfire/intc-simr.c b/arch/m68k/platform/coldfire/intc-simr.c index e642b24ab729..e642b24ab729 100644 --- a/arch/m68knommu/platform/coldfire/intc-simr.c +++ b/arch/m68k/platform/coldfire/intc-simr.c | |||
diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68k/platform/coldfire/intc.c index d648081a63f6..d648081a63f6 100644 --- a/arch/m68knommu/platform/coldfire/intc.c +++ b/arch/m68k/platform/coldfire/intc.c | |||
diff --git a/arch/m68knommu/platform/coldfire/pinmux.c b/arch/m68k/platform/coldfire/pinmux.c index 8c62b825939f..8c62b825939f 100644 --- a/arch/m68knommu/platform/coldfire/pinmux.c +++ b/arch/m68k/platform/coldfire/pinmux.c | |||
diff --git a/arch/m68knommu/platform/coldfire/pit.c b/arch/m68k/platform/coldfire/pit.c index c2b980926bec..c2b980926bec 100644 --- a/arch/m68knommu/platform/coldfire/pit.c +++ b/arch/m68k/platform/coldfire/pit.c | |||
diff --git a/arch/m68knommu/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c index 0a1b937c3e18..0a1b937c3e18 100644 --- a/arch/m68knommu/platform/coldfire/sltimers.c +++ b/arch/m68k/platform/coldfire/sltimers.c | |||
diff --git a/arch/m68knommu/platform/coldfire/timers.c b/arch/m68k/platform/coldfire/timers.c index 60242f65fea9..60242f65fea9 100644 --- a/arch/m68knommu/platform/coldfire/timers.c +++ b/arch/m68k/platform/coldfire/timers.c | |||
diff --git a/arch/m68knommu/platform/coldfire/vectors.c b/arch/m68k/platform/coldfire/vectors.c index a21d3f870b7a..a21d3f870b7a 100644 --- a/arch/m68knommu/platform/coldfire/vectors.c +++ b/arch/m68k/platform/coldfire/vectors.c | |||
diff --git a/arch/m68knommu/Kconfig.debug b/arch/m68knommu/Kconfig.debug deleted file mode 100644 index ed6d9a83bfdb..000000000000 --- a/arch/m68knommu/Kconfig.debug +++ /dev/null | |||
@@ -1,35 +0,0 @@ | |||
1 | menu "Kernel hacking" | ||
2 | |||
3 | source "lib/Kconfig.debug" | ||
4 | |||
5 | config FULLDEBUG | ||
6 | bool "Full Symbolic/Source Debugging support" | ||
7 | help | ||
8 | Enable debugging symbols on kernel build. | ||
9 | |||
10 | config HIGHPROFILE | ||
11 | bool "Use fast second timer for profiling" | ||
12 | depends on COLDFIRE | ||
13 | help | ||
14 | Use a fast secondary clock to produce profiling information. | ||
15 | |||
16 | config BOOTPARAM | ||
17 | bool 'Compiled-in Kernel Boot Parameter' | ||
18 | |||
19 | config BOOTPARAM_STRING | ||
20 | string 'Kernel Boot Parameter' | ||
21 | default 'console=ttyS0,19200' | ||
22 | depends on BOOTPARAM | ||
23 | |||
24 | config NO_KERNEL_MSG | ||
25 | bool "Suppress Kernel BUG Messages" | ||
26 | help | ||
27 | Do not output any debug BUG messages within the kernel. | ||
28 | |||
29 | config BDM_DISABLE | ||
30 | bool "Disable BDM signals" | ||
31 | depends on (EXPERIMENTAL && COLDFIRE) | ||
32 | help | ||
33 | Disable the ColdFire CPU's BDM signals. | ||
34 | |||
35 | endmenu | ||
diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig deleted file mode 100644 index 2f5655c577af..000000000000 --- a/arch/m68knommu/defconfig +++ /dev/null | |||
@@ -1,74 +0,0 @@ | |||
1 | CONFIG_EXPERIMENTAL=y | ||
2 | CONFIG_LOG_BUF_SHIFT=14 | ||
3 | # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set | ||
4 | CONFIG_EXPERT=y | ||
5 | # CONFIG_KALLSYMS is not set | ||
6 | # CONFIG_HOTPLUG is not set | ||
7 | # CONFIG_FUTEX is not set | ||
8 | # CONFIG_EPOLL is not set | ||
9 | # CONFIG_SIGNALFD is not set | ||
10 | # CONFIG_TIMERFD is not set | ||
11 | # CONFIG_EVENTFD is not set | ||
12 | # CONFIG_AIO is not set | ||
13 | # CONFIG_VM_EVENT_COUNTERS is not set | ||
14 | # CONFIG_COMPAT_BRK is not set | ||
15 | # CONFIG_BLK_DEV_BSG is not set | ||
16 | # CONFIG_IOSCHED_DEADLINE is not set | ||
17 | # CONFIG_IOSCHED_CFQ is not set | ||
18 | CONFIG_M520x=y | ||
19 | CONFIG_CLOCK_SET=y | ||
20 | CONFIG_CLOCK_FREQ=166666666 | ||
21 | CONFIG_CLOCK_DIV=2 | ||
22 | CONFIG_M5208EVB=y | ||
23 | # CONFIG_4KSTACKS is not set | ||
24 | CONFIG_RAMBASE=0x40000000 | ||
25 | CONFIG_RAMSIZE=0x2000000 | ||
26 | CONFIG_VECTORBASE=0x40000000 | ||
27 | CONFIG_KERNELBASE=0x40020000 | ||
28 | CONFIG_RAM16BIT=y | ||
29 | CONFIG_BINFMT_FLAT=y | ||
30 | CONFIG_NET=y | ||
31 | CONFIG_PACKET=y | ||
32 | CONFIG_UNIX=y | ||
33 | CONFIG_INET=y | ||
34 | # CONFIG_INET_XFRM_MODE_TRANSPORT is not set | ||
35 | # CONFIG_INET_XFRM_MODE_TUNNEL is not set | ||
36 | # CONFIG_INET_XFRM_MODE_BEET is not set | ||
37 | # CONFIG_INET_LRO is not set | ||
38 | # CONFIG_INET_DIAG is not set | ||
39 | # CONFIG_IPV6 is not set | ||
40 | CONFIG_MTD=y | ||
41 | CONFIG_MTD_PARTITIONS=y | ||
42 | CONFIG_MTD_CHAR=y | ||
43 | CONFIG_MTD_BLOCK=y | ||
44 | CONFIG_MTD_RAM=y | ||
45 | CONFIG_MTD_UCLINUX=y | ||
46 | CONFIG_BLK_DEV_RAM=y | ||
47 | # CONFIG_MISC_DEVICES is not set | ||
48 | CONFIG_NETDEVICES=y | ||
49 | CONFIG_NET_ETHERNET=y | ||
50 | CONFIG_FEC=y | ||
51 | # CONFIG_NETDEV_1000 is not set | ||
52 | # CONFIG_NETDEV_10000 is not set | ||
53 | # CONFIG_INPUT is not set | ||
54 | # CONFIG_SERIO is not set | ||
55 | # CONFIG_VT is not set | ||
56 | CONFIG_SERIAL_MCF=y | ||
57 | CONFIG_SERIAL_MCF_BAUDRATE=115200 | ||
58 | CONFIG_SERIAL_MCF_CONSOLE=y | ||
59 | # CONFIG_UNIX98_PTYS is not set | ||
60 | # CONFIG_HW_RANDOM is not set | ||
61 | # CONFIG_HWMON is not set | ||
62 | # CONFIG_USB_SUPPORT is not set | ||
63 | CONFIG_EXT2_FS=y | ||
64 | # CONFIG_FILE_LOCKING is not set | ||
65 | # CONFIG_DNOTIFY is not set | ||
66 | # CONFIG_SYSFS is not set | ||
67 | CONFIG_ROMFS_FS=y | ||
68 | CONFIG_ROMFS_BACKED_BY_MTD=y | ||
69 | # CONFIG_NETWORK_FILESYSTEMS is not set | ||
70 | # CONFIG_RCU_CPU_STALL_DETECTOR is not set | ||
71 | CONFIG_SYSCTL_SYSCALL_CHECK=y | ||
72 | CONFIG_FULLDEBUG=y | ||
73 | CONFIG_BOOTPARAM=y | ||
74 | CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" | ||
diff --git a/arch/m68knommu/kernel/.gitignore b/arch/m68knommu/kernel/.gitignore deleted file mode 100644 index c5f676c3c224..000000000000 --- a/arch/m68knommu/kernel/.gitignore +++ /dev/null | |||
@@ -1 +0,0 @@ | |||
1 | vmlinux.lds | ||
diff --git a/arch/m68knommu/lib/ashldi3.c b/arch/m68knommu/lib/ashldi3.c deleted file mode 100644 index 008403eb8ce2..000000000000 --- a/arch/m68knommu/lib/ashldi3.c +++ /dev/null | |||
@@ -1,62 +0,0 @@ | |||
1 | /* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */ | ||
2 | /* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. | ||
3 | |||
4 | This file is part of GNU CC. | ||
5 | |||
6 | GNU CC is free software; you can redistribute it and/or modify | ||
7 | it under the terms of the GNU General Public License as published by | ||
8 | the Free Software Foundation; either version 2, or (at your option) | ||
9 | any later version. | ||
10 | |||
11 | GNU CC is distributed in the hope that it will be useful, | ||
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | GNU General Public License for more details. | ||
15 | |||
16 | You should have received a copy of the GNU General Public License | ||
17 | along with GNU CC; see the file COPYING. If not, write to | ||
18 | the Free Software Foundation, 59 Temple Place - Suite 330, | ||
19 | Boston, MA 02111-1307, USA. */ | ||
20 | |||
21 | #define BITS_PER_UNIT 8 | ||
22 | |||
23 | typedef int SItype __attribute__ ((mode (SI))); | ||
24 | typedef unsigned int USItype __attribute__ ((mode (SI))); | ||
25 | typedef int DItype __attribute__ ((mode (DI))); | ||
26 | typedef int word_type __attribute__ ((mode (__word__))); | ||
27 | |||
28 | struct DIstruct {SItype high, low;}; | ||
29 | |||
30 | typedef union | ||
31 | { | ||
32 | struct DIstruct s; | ||
33 | DItype ll; | ||
34 | } DIunion; | ||
35 | |||
36 | DItype | ||
37 | __ashldi3 (DItype u, word_type b) | ||
38 | { | ||
39 | DIunion w; | ||
40 | word_type bm; | ||
41 | DIunion uu; | ||
42 | |||
43 | if (b == 0) | ||
44 | return u; | ||
45 | |||
46 | uu.ll = u; | ||
47 | |||
48 | bm = (sizeof (SItype) * BITS_PER_UNIT) - b; | ||
49 | if (bm <= 0) | ||
50 | { | ||
51 | w.s.low = 0; | ||
52 | w.s.high = (USItype)uu.s.low << -bm; | ||
53 | } | ||
54 | else | ||
55 | { | ||
56 | USItype carries = (USItype)uu.s.low >> bm; | ||
57 | w.s.low = (USItype)uu.s.low << b; | ||
58 | w.s.high = ((USItype)uu.s.high << b) | carries; | ||
59 | } | ||
60 | |||
61 | return w.ll; | ||
62 | } | ||
diff --git a/arch/m68knommu/lib/lshrdi3.c b/arch/m68knommu/lib/lshrdi3.c deleted file mode 100644 index 93b1cb6fdee8..000000000000 --- a/arch/m68knommu/lib/lshrdi3.c +++ /dev/null | |||
@@ -1,62 +0,0 @@ | |||
1 | /* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ | ||
2 | /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. | ||
3 | |||
4 | This file is part of GNU CC. | ||
5 | |||
6 | GNU CC is free software; you can redistribute it and/or modify | ||
7 | it under the terms of the GNU General Public License as published by | ||
8 | the Free Software Foundation; either version 2, or (at your option) | ||
9 | any later version. | ||
10 | |||
11 | GNU CC is distributed in the hope that it will be useful, | ||
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | GNU General Public License for more details. | ||
15 | |||
16 | You should have received a copy of the GNU General Public License | ||
17 | along with GNU CC; see the file COPYING. If not, write to | ||
18 | the Free Software Foundation, 59 Temple Place - Suite 330, | ||
19 | Boston, MA 02111-1307, USA. */ | ||
20 | |||
21 | #define BITS_PER_UNIT 8 | ||
22 | |||
23 | typedef int SItype __attribute__ ((mode (SI))); | ||
24 | typedef unsigned int USItype __attribute__ ((mode (SI))); | ||
25 | typedef int DItype __attribute__ ((mode (DI))); | ||
26 | typedef int word_type __attribute__ ((mode (__word__))); | ||
27 | |||
28 | struct DIstruct {SItype high, low;}; | ||
29 | |||
30 | typedef union | ||
31 | { | ||
32 | struct DIstruct s; | ||
33 | DItype ll; | ||
34 | } DIunion; | ||
35 | |||
36 | DItype | ||
37 | __lshrdi3 (DItype u, word_type b) | ||
38 | { | ||
39 | DIunion w; | ||
40 | word_type bm; | ||
41 | DIunion uu; | ||
42 | |||
43 | if (b == 0) | ||
44 | return u; | ||
45 | |||
46 | uu.ll = u; | ||
47 | |||
48 | bm = (sizeof (SItype) * BITS_PER_UNIT) - b; | ||
49 | if (bm <= 0) | ||
50 | { | ||
51 | w.s.high = 0; | ||
52 | w.s.low = (USItype)uu.s.high >> -bm; | ||
53 | } | ||
54 | else | ||
55 | { | ||
56 | USItype carries = (USItype)uu.s.high << bm; | ||
57 | w.s.high = (USItype)uu.s.high >> b; | ||
58 | w.s.low = ((USItype)uu.s.low >> b) | carries; | ||
59 | } | ||
60 | |||
61 | return w.ll; | ||
62 | } | ||