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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-24 12:01:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-24 12:01:44 -0400
commita6b49cb210f878709bdc0bddc16a853f18790d02 (patch)
tree6147078ef0ce584cb6a8dae7468f060ef5838d12 /arch/microblaze
parent2c9871de0ae89a0e2c365ea6e277135fe031d8b4 (diff)
parentbfc8125858d777bd5bdba03a091c07cc2e0e17c0 (diff)
Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (24 commits) microblaze: Disable heartbeat/enable emaclite in defconfigs microblaze: Support simpleImage.dts make target microblaze: Fix _start symbol to physical address microblaze: Use LOAD_OFFSET macro to get correct LMA for all sections microblaze: Create the LOAD_OFFSET macro used to compute VMA vs LMA offsets microblaze: Copy ppc asm-compat.h for clean handling of constants in asm and C microblaze: Actually show KiB rather than pages in "Freeing initrd memory:" microblaze: Support ptrace syscall tracing. microblaze: Updated CPU version and FPGA family codes in PVR microblaze: Generate correct signal and siginfo for integer div-by-zero microblaze: Don't be noisy when userspace causes hardware exceptions microblaze: Remove ipc.h file which points to non-existing asm-generic file microblaze: Clear sticky FSR register after generating exception signals microblaze: Ensure CPU usermode is set on new userspace processes microblaze: Use correct kbuild variable KBUILD_CFLAGS microblaze: Save and restore msr in hw exception microblaze: Add architectural support for USB EHCI host controllers microblaze: Implement include/asm/syscall.h. microblaze: Improve checking mechanism for MSR instruction microblaze: Add checking mechanism for MSR instruction ...
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/Kconfig1
-rw-r--r--arch/microblaze/Makefile31
-rw-r--r--arch/microblaze/boot/Makefile41
l---------arch/microblaze/boot/dts/system.dts1
-rw-r--r--arch/microblaze/boot/linked_dtb.S3
-rw-r--r--arch/microblaze/configs/mmu_defconfig30
-rw-r--r--arch/microblaze/configs/nommu_defconfig35
-rw-r--r--arch/microblaze/include/asm/asm-compat.h17
-rw-r--r--arch/microblaze/include/asm/io.h3
-rw-r--r--arch/microblaze/include/asm/ipc.h1
-rw-r--r--arch/microblaze/include/asm/page.h3
-rw-r--r--arch/microblaze/include/asm/setup.h2
-rw-r--r--arch/microblaze/include/asm/syscall.h99
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo.c3
-rw-r--r--arch/microblaze/kernel/entry.S72
-rw-r--r--arch/microblaze/kernel/exceptions.c33
-rw-r--r--arch/microblaze/kernel/head.S14
-rw-r--r--arch/microblaze/kernel/hw_exception_handler.S10
-rw-r--r--arch/microblaze/kernel/process.c1
-rw-r--r--arch/microblaze/kernel/ptrace.c62
-rw-r--r--arch/microblaze/kernel/setup.c12
-rw-r--r--arch/microblaze/kernel/vmlinux.lds.S72
-rw-r--r--arch/microblaze/mm/init.c3
23 files changed, 436 insertions, 113 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 2db722d80d4d..bbd8327f1890 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -6,6 +6,7 @@ mainmenu "Linux/Microblaze Kernel Configuration"
6config MICROBLAZE 6config MICROBLAZE
7 def_bool y 7 def_bool y
8 select HAVE_LMB 8 select HAVE_LMB
9 select USB_ARCH_HAS_EHCI
9 select ARCH_WANT_OPTIONAL_GPIOLIB 10 select ARCH_WANT_OPTIONAL_GPIOLIB
10 11
11config SWAP 12config SWAP
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 8439598d4655..34187354304a 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -37,12 +37,12 @@ CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
37CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER)) 37CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
38 38
39# r31 holds current when in kernel mode 39# r31 holds current when in kernel mode
40KBUILD_KERNEL += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2) 40KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
41 41
42LDFLAGS := 42LDFLAGS :=
43LDFLAGS_vmlinux := 43LDFLAGS_vmlinux :=
44 44
45LIBGCC := $(shell $(CC) $(KBUILD_KERNEL) -print-libgcc-file-name) 45LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
46 46
47head-y := arch/microblaze/kernel/head.o 47head-y := arch/microblaze/kernel/head.o
48libs-y += arch/microblaze/lib/ 48libs-y += arch/microblaze/lib/
@@ -53,22 +53,41 @@ core-y += arch/microblaze/platform/
53 53
54boot := arch/microblaze/boot 54boot := arch/microblaze/boot
55 55
56# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
57DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
58
59ifneq ($(DTB),)
60 core-y += $(boot)/
61endif
62
56# defines filename extension depending memory management type 63# defines filename extension depending memory management type
57ifeq ($(CONFIG_MMU),) 64ifeq ($(CONFIG_MMU),)
58MMU := -nommu 65MMU := -nommu
59endif 66endif
60 67
61export MMU 68export MMU DTB
62 69
63all: linux.bin 70all: linux.bin
64 71
72BOOT_TARGETS = linux.bin linux.bin.gz simpleImage.%
73
65archclean: 74archclean:
66 $(Q)$(MAKE) $(clean)=$(boot) 75 $(Q)$(MAKE) $(clean)=$(boot)
67 76
68linux.bin linux.bin.gz: vmlinux 77$(BOOT_TARGETS): vmlinux
69 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 78 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
70 79
71define archhelp 80define archhelp
72 echo '* linux.bin - Create raw binary' 81 echo '* linux.bin - Create raw binary'
73 echo ' linux.bin.gz - Create compressed raw binary' 82 echo ' linux.bin.gz - Create compressed raw binary'
83 echo ' simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
84 echo ' - stripped elf with fdt blob
85 echo ' simpleImage.<dt>.unstrip - full ELF image with fdt blob'
86 echo ' *_defconfig - Select default config from arch/microblaze/configs'
87 echo ''
88 echo ' Targets with <dt> embed a device tree blob inside the image'
89 echo ' These targets support board with firmware that does not'
90 echo ' support passing a device tree directly. Replace <dt> with the'
91 echo ' name of a dts file from the arch/microblaze/boot/dts/ directory'
92 echo ' (minus the .dts extension).'
74endef 93endef
diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile
index c2bb043a029d..21f13322a4ca 100644
--- a/arch/microblaze/boot/Makefile
+++ b/arch/microblaze/boot/Makefile
@@ -2,10 +2,24 @@
2# arch/microblaze/boot/Makefile 2# arch/microblaze/boot/Makefile
3# 3#
4 4
5targets := linux.bin linux.bin.gz 5obj-y += linked_dtb.o
6
7targets := linux.bin linux.bin.gz simpleImage.%
6 8
7OBJCOPYFLAGS_linux.bin := -O binary 9OBJCOPYFLAGS_linux.bin := -O binary
8 10
11# Where the DTS files live
12dtstree := $(srctree)/$(src)/dts
13
14# Ensure system.dtb exists
15$(obj)/linked_dtb.o: $(obj)/system.dtb
16
17# Generate system.dtb from $(DTB).dtb
18ifneq ($(DTB),system)
19$(obj)/system.dtb: $(obj)/$(DTB).dtb
20 $(call if_changed,cp)
21endif
22
9$(obj)/linux.bin: vmlinux FORCE 23$(obj)/linux.bin: vmlinux FORCE
10 [ -n $(CONFIG_INITRAMFS_SOURCE) ] && [ ! -e $(CONFIG_INITRAMFS_SOURCE) ] && \ 24 [ -n $(CONFIG_INITRAMFS_SOURCE) ] && [ ! -e $(CONFIG_INITRAMFS_SOURCE) ] && \
11 touch $(CONFIG_INITRAMFS_SOURCE) || echo "No CPIO image" 25 touch $(CONFIG_INITRAMFS_SOURCE) || echo "No CPIO image"
@@ -16,4 +30,27 @@ $(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
16 $(call if_changed,gzip) 30 $(call if_changed,gzip)
17 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' 31 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
18 32
19clean-kernel += linux.bin linux.bin.gz 33quiet_cmd_cp = CP $< $@$2
34 cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
35
36quiet_cmd_strip = STRIP $@
37 cmd_strip = $(STRIP) -K _start -K _end -K __log_buf -K _fdt_start vmlinux -o $@
38
39$(obj)/simpleImage.%: vmlinux FORCE
40 $(call if_changed,cp,.unstrip)
41 $(call if_changed,strip)
42 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
43
44# Rule to build device tree blobs
45DTC = $(objtree)/scripts/dtc/dtc
46
47# Rule to build device tree blobs
48quiet_cmd_dtc = DTC $@
49 cmd_dtc = $(DTC) -O dtb -o $(obj)/$*.dtb -b 0 -p 1024 $(dtstree)/$*.dts
50
51$(obj)/%.dtb: $(dtstree)/%.dts FORCE
52 $(call if_changed,dtc)
53
54clean-kernel += linux.bin linux.bin.gz simpleImage.*
55
56clean-files += *.dtb
diff --git a/arch/microblaze/boot/dts/system.dts b/arch/microblaze/boot/dts/system.dts
new file mode 120000
index 000000000000..7cb657892f21
--- /dev/null
+++ b/arch/microblaze/boot/dts/system.dts
@@ -0,0 +1 @@
../../platform/generic/system.dts \ No newline at end of file
diff --git a/arch/microblaze/boot/linked_dtb.S b/arch/microblaze/boot/linked_dtb.S
new file mode 100644
index 000000000000..cb2b537aebee
--- /dev/null
+++ b/arch/microblaze/boot/linked_dtb.S
@@ -0,0 +1,3 @@
1.section __fdt_blob,"a"
2.incbin "arch/microblaze/boot/system.dtb"
3
diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index 09c32962b66f..bb7c374713ad 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -1,7 +1,7 @@
1# 1#
2# Automatically generated make config: don't edit 2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.31-rc6 3# Linux kernel version: 2.6.31
4# Tue Aug 18 11:00:02 2009 4# Thu Sep 24 10:28:50 2009
5# 5#
6CONFIG_MICROBLAZE=y 6CONFIG_MICROBLAZE=y
7# CONFIG_SWAP is not set 7# CONFIG_SWAP is not set
@@ -42,11 +42,12 @@ CONFIG_SYSVIPC_SYSCTL=y
42# 42#
43# RCU Subsystem 43# RCU Subsystem
44# 44#
45CONFIG_CLASSIC_RCU=y 45CONFIG_TREE_RCU=y
46# CONFIG_TREE_RCU is not set 46# CONFIG_TREE_PREEMPT_RCU is not set
47# CONFIG_PREEMPT_RCU is not set 47# CONFIG_RCU_TRACE is not set
48CONFIG_RCU_FANOUT=32
49# CONFIG_RCU_FANOUT_EXACT is not set
48# CONFIG_TREE_RCU_TRACE is not set 50# CONFIG_TREE_RCU_TRACE is not set
49# CONFIG_PREEMPT_RCU_TRACE is not set
50CONFIG_IKCONFIG=y 51CONFIG_IKCONFIG=y
51CONFIG_IKCONFIG_PROC=y 52CONFIG_IKCONFIG_PROC=y
52CONFIG_LOG_BUF_SHIFT=17 53CONFIG_LOG_BUF_SHIFT=17
@@ -260,6 +261,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
260# CONFIG_NETFILTER is not set 261# CONFIG_NETFILTER is not set
261# CONFIG_IP_DCCP is not set 262# CONFIG_IP_DCCP is not set
262# CONFIG_IP_SCTP is not set 263# CONFIG_IP_SCTP is not set
264# CONFIG_RDS is not set
263# CONFIG_TIPC is not set 265# CONFIG_TIPC is not set
264# CONFIG_ATM is not set 266# CONFIG_ATM is not set
265# CONFIG_BRIDGE is not set 267# CONFIG_BRIDGE is not set
@@ -357,12 +359,10 @@ CONFIG_NET_ETHERNET=y
357# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set 359# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
358# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set 360# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
359# CONFIG_KS8842 is not set 361# CONFIG_KS8842 is not set
362CONFIG_XILINX_EMACLITE=y
360CONFIG_NETDEV_1000=y 363CONFIG_NETDEV_1000=y
361CONFIG_NETDEV_10000=y 364CONFIG_NETDEV_10000=y
362 365CONFIG_WLAN=y
363#
364# Wireless LAN
365#
366# CONFIG_WLAN_PRE80211 is not set 366# CONFIG_WLAN_PRE80211 is not set
367# CONFIG_WLAN_80211 is not set 367# CONFIG_WLAN_80211 is not set
368 368
@@ -460,6 +460,7 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
460# CONFIG_DISPLAY_SUPPORT is not set 460# CONFIG_DISPLAY_SUPPORT is not set
461# CONFIG_SOUND is not set 461# CONFIG_SOUND is not set
462# CONFIG_USB_SUPPORT is not set 462# CONFIG_USB_SUPPORT is not set
463CONFIG_USB_ARCH_HAS_EHCI=y
463# CONFIG_MMC is not set 464# CONFIG_MMC is not set
464# CONFIG_MEMSTICK is not set 465# CONFIG_MEMSTICK is not set
465# CONFIG_NEW_LEDS is not set 466# CONFIG_NEW_LEDS is not set
@@ -488,6 +489,7 @@ CONFIG_EXT2_FS=y
488# CONFIG_GFS2_FS is not set 489# CONFIG_GFS2_FS is not set
489# CONFIG_OCFS2_FS is not set 490# CONFIG_OCFS2_FS is not set
490# CONFIG_BTRFS_FS is not set 491# CONFIG_BTRFS_FS is not set
492# CONFIG_NILFS2_FS is not set
491CONFIG_FILE_LOCKING=y 493CONFIG_FILE_LOCKING=y
492CONFIG_FSNOTIFY=y 494CONFIG_FSNOTIFY=y
493# CONFIG_DNOTIFY is not set 495# CONFIG_DNOTIFY is not set
@@ -546,7 +548,6 @@ CONFIG_MISC_FILESYSTEMS=y
546# CONFIG_ROMFS_FS is not set 548# CONFIG_ROMFS_FS is not set
547# CONFIG_SYSV_FS is not set 549# CONFIG_SYSV_FS is not set
548# CONFIG_UFS_FS is not set 550# CONFIG_UFS_FS is not set
549# CONFIG_NILFS2_FS is not set
550CONFIG_NETWORK_FILESYSTEMS=y 551CONFIG_NETWORK_FILESYSTEMS=y
551CONFIG_NFS_FS=y 552CONFIG_NFS_FS=y
552CONFIG_NFS_V3=y 553CONFIG_NFS_V3=y
@@ -671,18 +672,20 @@ CONFIG_DEBUG_INFO=y
671# CONFIG_DEBUG_LIST is not set 672# CONFIG_DEBUG_LIST is not set
672# CONFIG_DEBUG_SG is not set 673# CONFIG_DEBUG_SG is not set
673# CONFIG_DEBUG_NOTIFIERS is not set 674# CONFIG_DEBUG_NOTIFIERS is not set
675# CONFIG_DEBUG_CREDENTIALS is not set
674# CONFIG_BOOT_PRINTK_DELAY is not set 676# CONFIG_BOOT_PRINTK_DELAY is not set
675# CONFIG_RCU_TORTURE_TEST is not set 677# CONFIG_RCU_TORTURE_TEST is not set
676# CONFIG_RCU_CPU_STALL_DETECTOR is not set 678# CONFIG_RCU_CPU_STALL_DETECTOR is not set
677# CONFIG_BACKTRACE_SELF_TEST is not set 679# CONFIG_BACKTRACE_SELF_TEST is not set
678# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set 680# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
681# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
679# CONFIG_FAULT_INJECTION is not set 682# CONFIG_FAULT_INJECTION is not set
680# CONFIG_SYSCTL_SYSCALL_CHECK is not set 683# CONFIG_SYSCTL_SYSCALL_CHECK is not set
681# CONFIG_PAGE_POISONING is not set 684# CONFIG_PAGE_POISONING is not set
682# CONFIG_SAMPLES is not set 685# CONFIG_SAMPLES is not set
683# CONFIG_KMEMCHECK is not set 686# CONFIG_KMEMCHECK is not set
684CONFIG_EARLY_PRINTK=y 687CONFIG_EARLY_PRINTK=y
685CONFIG_HEART_BEAT=y 688# CONFIG_HEART_BEAT is not set
686CONFIG_DEBUG_BOOTMEM=y 689CONFIG_DEBUG_BOOTMEM=y
687 690
688# 691#
@@ -697,7 +700,6 @@ CONFIG_CRYPTO=y
697# 700#
698# Crypto core or helper 701# Crypto core or helper
699# 702#
700# CONFIG_CRYPTO_FIPS is not set
701# CONFIG_CRYPTO_MANAGER is not set 703# CONFIG_CRYPTO_MANAGER is not set
702# CONFIG_CRYPTO_MANAGER2 is not set 704# CONFIG_CRYPTO_MANAGER2 is not set
703# CONFIG_CRYPTO_GF128MUL is not set 705# CONFIG_CRYPTO_GF128MUL is not set
@@ -729,11 +731,13 @@ CONFIG_CRYPTO=y
729# 731#
730# CONFIG_CRYPTO_HMAC is not set 732# CONFIG_CRYPTO_HMAC is not set
731# CONFIG_CRYPTO_XCBC is not set 733# CONFIG_CRYPTO_XCBC is not set
734# CONFIG_CRYPTO_VMAC is not set
732 735
733# 736#
734# Digest 737# Digest
735# 738#
736# CONFIG_CRYPTO_CRC32C is not set 739# CONFIG_CRYPTO_CRC32C is not set
740# CONFIG_CRYPTO_GHASH is not set
737# CONFIG_CRYPTO_MD4 is not set 741# CONFIG_CRYPTO_MD4 is not set
738# CONFIG_CRYPTO_MD5 is not set 742# CONFIG_CRYPTO_MD5 is not set
739# CONFIG_CRYPTO_MICHAEL_MIC is not set 743# CONFIG_CRYPTO_MICHAEL_MIC is not set
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
index 8b638615a972..adb839bab704 100644
--- a/arch/microblaze/configs/nommu_defconfig
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -1,7 +1,7 @@
1# 1#
2# Automatically generated make config: don't edit 2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.31-rc6 3# Linux kernel version: 2.6.31
4# Tue Aug 18 10:35:30 2009 4# Thu Sep 24 10:29:43 2009
5# 5#
6CONFIG_MICROBLAZE=y 6CONFIG_MICROBLAZE=y
7# CONFIG_SWAP is not set 7# CONFIG_SWAP is not set
@@ -44,11 +44,12 @@ CONFIG_BSD_PROCESS_ACCT_V3=y
44# 44#
45# RCU Subsystem 45# RCU Subsystem
46# 46#
47CONFIG_CLASSIC_RCU=y 47CONFIG_TREE_RCU=y
48# CONFIG_TREE_RCU is not set 48# CONFIG_TREE_PREEMPT_RCU is not set
49# CONFIG_PREEMPT_RCU is not set 49# CONFIG_RCU_TRACE is not set
50CONFIG_RCU_FANOUT=32
51# CONFIG_RCU_FANOUT_EXACT is not set
50# CONFIG_TREE_RCU_TRACE is not set 52# CONFIG_TREE_RCU_TRACE is not set
51# CONFIG_PREEMPT_RCU_TRACE is not set
52CONFIG_IKCONFIG=y 53CONFIG_IKCONFIG=y
53CONFIG_IKCONFIG_PROC=y 54CONFIG_IKCONFIG_PROC=y
54CONFIG_LOG_BUF_SHIFT=17 55CONFIG_LOG_BUF_SHIFT=17
@@ -243,6 +244,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
243# CONFIG_NETFILTER is not set 244# CONFIG_NETFILTER is not set
244# CONFIG_IP_DCCP is not set 245# CONFIG_IP_DCCP is not set
245# CONFIG_IP_SCTP is not set 246# CONFIG_IP_SCTP is not set
247# CONFIG_RDS is not set
246# CONFIG_TIPC is not set 248# CONFIG_TIPC is not set
247# CONFIG_ATM is not set 249# CONFIG_ATM is not set
248# CONFIG_BRIDGE is not set 250# CONFIG_BRIDGE is not set
@@ -272,6 +274,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
272# CONFIG_AF_RXRPC is not set 274# CONFIG_AF_RXRPC is not set
273CONFIG_WIRELESS=y 275CONFIG_WIRELESS=y
274# CONFIG_CFG80211 is not set 276# CONFIG_CFG80211 is not set
277CONFIG_CFG80211_DEFAULT_PS_VALUE=0
275CONFIG_WIRELESS_OLD_REGULATORY=y 278CONFIG_WIRELESS_OLD_REGULATORY=y
276# CONFIG_WIRELESS_EXT is not set 279# CONFIG_WIRELESS_EXT is not set
277# CONFIG_LIB80211 is not set 280# CONFIG_LIB80211 is not set
@@ -279,7 +282,6 @@ CONFIG_WIRELESS_OLD_REGULATORY=y
279# 282#
280# CFG80211 needs to be enabled for MAC80211 283# CFG80211 needs to be enabled for MAC80211
281# 284#
282CONFIG_MAC80211_DEFAULT_PS_VALUE=0
283# CONFIG_WIMAX is not set 285# CONFIG_WIMAX is not set
284# CONFIG_RFKILL is not set 286# CONFIG_RFKILL is not set
285# CONFIG_NET_9P is not set 287# CONFIG_NET_9P is not set
@@ -304,6 +306,7 @@ CONFIG_MTD_PARTITIONS=y
304# CONFIG_MTD_TESTS is not set 306# CONFIG_MTD_TESTS is not set
305# CONFIG_MTD_REDBOOT_PARTS is not set 307# CONFIG_MTD_REDBOOT_PARTS is not set
306CONFIG_MTD_CMDLINE_PARTS=y 308CONFIG_MTD_CMDLINE_PARTS=y
309# CONFIG_MTD_OF_PARTS is not set
307# CONFIG_MTD_AR7_PARTS is not set 310# CONFIG_MTD_AR7_PARTS is not set
308 311
309# 312#
@@ -349,6 +352,7 @@ CONFIG_MTD_RAM=y
349# 352#
350# CONFIG_MTD_COMPLEX_MAPPINGS is not set 353# CONFIG_MTD_COMPLEX_MAPPINGS is not set
351# CONFIG_MTD_PHYSMAP is not set 354# CONFIG_MTD_PHYSMAP is not set
355# CONFIG_MTD_PHYSMAP_OF is not set
352CONFIG_MTD_UCLINUX=y 356CONFIG_MTD_UCLINUX=y
353# CONFIG_MTD_PLATRAM is not set 357# CONFIG_MTD_PLATRAM is not set
354 358
@@ -429,12 +433,10 @@ CONFIG_NET_ETHERNET=y
429# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set 433# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
430# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set 434# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
431# CONFIG_KS8842 is not set 435# CONFIG_KS8842 is not set
436# CONFIG_XILINX_EMACLITE is not set
432CONFIG_NETDEV_1000=y 437CONFIG_NETDEV_1000=y
433CONFIG_NETDEV_10000=y 438CONFIG_NETDEV_10000=y
434 439CONFIG_WLAN=y
435#
436# Wireless LAN
437#
438# CONFIG_WLAN_PRE80211 is not set 440# CONFIG_WLAN_PRE80211 is not set
439# CONFIG_WLAN_80211 is not set 441# CONFIG_WLAN_80211 is not set
440 442
@@ -535,7 +537,7 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y
535CONFIG_USB_SUPPORT=y 537CONFIG_USB_SUPPORT=y
536CONFIG_USB_ARCH_HAS_HCD=y 538CONFIG_USB_ARCH_HAS_HCD=y
537# CONFIG_USB_ARCH_HAS_OHCI is not set 539# CONFIG_USB_ARCH_HAS_OHCI is not set
538# CONFIG_USB_ARCH_HAS_EHCI is not set 540CONFIG_USB_ARCH_HAS_EHCI=y
539# CONFIG_USB is not set 541# CONFIG_USB is not set
540# CONFIG_USB_OTG_WHITELIST is not set 542# CONFIG_USB_OTG_WHITELIST is not set
541# CONFIG_USB_OTG_BLACKLIST_HUB is not set 543# CONFIG_USB_OTG_BLACKLIST_HUB is not set
@@ -579,6 +581,7 @@ CONFIG_FS_POSIX_ACL=y
579# CONFIG_GFS2_FS is not set 581# CONFIG_GFS2_FS is not set
580# CONFIG_OCFS2_FS is not set 582# CONFIG_OCFS2_FS is not set
581# CONFIG_BTRFS_FS is not set 583# CONFIG_BTRFS_FS is not set
584# CONFIG_NILFS2_FS is not set
582CONFIG_FILE_LOCKING=y 585CONFIG_FILE_LOCKING=y
583CONFIG_FSNOTIFY=y 586CONFIG_FSNOTIFY=y
584# CONFIG_DNOTIFY is not set 587# CONFIG_DNOTIFY is not set
@@ -639,7 +642,6 @@ CONFIG_ROMFS_BACKED_BY_BLOCK=y
639CONFIG_ROMFS_ON_BLOCK=y 642CONFIG_ROMFS_ON_BLOCK=y
640# CONFIG_SYSV_FS is not set 643# CONFIG_SYSV_FS is not set
641# CONFIG_UFS_FS is not set 644# CONFIG_UFS_FS is not set
642# CONFIG_NILFS2_FS is not set
643CONFIG_NETWORK_FILESYSTEMS=y 645CONFIG_NETWORK_FILESYSTEMS=y
644CONFIG_NFS_FS=y 646CONFIG_NFS_FS=y
645CONFIG_NFS_V3=y 647CONFIG_NFS_V3=y
@@ -710,18 +712,20 @@ CONFIG_DEBUG_INFO=y
710CONFIG_DEBUG_LIST=y 712CONFIG_DEBUG_LIST=y
711CONFIG_DEBUG_SG=y 713CONFIG_DEBUG_SG=y
712# CONFIG_DEBUG_NOTIFIERS is not set 714# CONFIG_DEBUG_NOTIFIERS is not set
715# CONFIG_DEBUG_CREDENTIALS is not set
713# CONFIG_BOOT_PRINTK_DELAY is not set 716# CONFIG_BOOT_PRINTK_DELAY is not set
714# CONFIG_RCU_TORTURE_TEST is not set 717# CONFIG_RCU_TORTURE_TEST is not set
715# CONFIG_RCU_CPU_STALL_DETECTOR is not set 718# CONFIG_RCU_CPU_STALL_DETECTOR is not set
716# CONFIG_BACKTRACE_SELF_TEST is not set 719# CONFIG_BACKTRACE_SELF_TEST is not set
717# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set 720# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
721# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
718# CONFIG_FAULT_INJECTION is not set 722# CONFIG_FAULT_INJECTION is not set
719CONFIG_SYSCTL_SYSCALL_CHECK=y 723CONFIG_SYSCTL_SYSCALL_CHECK=y
720# CONFIG_PAGE_POISONING is not set 724# CONFIG_PAGE_POISONING is not set
721# CONFIG_DYNAMIC_DEBUG is not set 725# CONFIG_DYNAMIC_DEBUG is not set
722# CONFIG_SAMPLES is not set 726# CONFIG_SAMPLES is not set
723CONFIG_EARLY_PRINTK=y 727CONFIG_EARLY_PRINTK=y
724CONFIG_HEART_BEAT=y 728# CONFIG_HEART_BEAT is not set
725# CONFIG_DEBUG_BOOTMEM is not set 729# CONFIG_DEBUG_BOOTMEM is not set
726 730
727# 731#
@@ -736,7 +740,6 @@ CONFIG_CRYPTO=y
736# 740#
737# Crypto core or helper 741# Crypto core or helper
738# 742#
739# CONFIG_CRYPTO_FIPS is not set
740# CONFIG_CRYPTO_MANAGER is not set 743# CONFIG_CRYPTO_MANAGER is not set
741# CONFIG_CRYPTO_MANAGER2 is not set 744# CONFIG_CRYPTO_MANAGER2 is not set
742# CONFIG_CRYPTO_GF128MUL is not set 745# CONFIG_CRYPTO_GF128MUL is not set
@@ -768,11 +771,13 @@ CONFIG_CRYPTO=y
768# 771#
769# CONFIG_CRYPTO_HMAC is not set 772# CONFIG_CRYPTO_HMAC is not set
770# CONFIG_CRYPTO_XCBC is not set 773# CONFIG_CRYPTO_XCBC is not set
774# CONFIG_CRYPTO_VMAC is not set
771 775
772# 776#
773# Digest 777# Digest
774# 778#
775# CONFIG_CRYPTO_CRC32C is not set 779# CONFIG_CRYPTO_CRC32C is not set
780# CONFIG_CRYPTO_GHASH is not set
776# CONFIG_CRYPTO_MD4 is not set 781# CONFIG_CRYPTO_MD4 is not set
777# CONFIG_CRYPTO_MD5 is not set 782# CONFIG_CRYPTO_MD5 is not set
778# CONFIG_CRYPTO_MICHAEL_MIC is not set 783# CONFIG_CRYPTO_MICHAEL_MIC is not set
diff --git a/arch/microblaze/include/asm/asm-compat.h b/arch/microblaze/include/asm/asm-compat.h
new file mode 100644
index 000000000000..e7bc9dc11b57
--- /dev/null
+++ b/arch/microblaze/include/asm/asm-compat.h
@@ -0,0 +1,17 @@
1#ifndef _ASM_MICROBLAZE_ASM_COMPAT_H
2#define _ASM_MICROBLAZE_ASM_COMPAT_H
3
4#include <asm/types.h>
5
6#ifdef __ASSEMBLY__
7# define stringify_in_c(...) __VA_ARGS__
8# define ASM_CONST(x) x
9#else
10/* This version of stringify will deal with commas... */
11# define __stringify_in_c(...) #__VA_ARGS__
12# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " "
13# define __ASM_CONST(x) x##UL
14# define ASM_CONST(x) __ASM_CONST(x)
15#endif
16
17#endif /* _ASM_MICROBLAZE_ASM_COMPAT_H */
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 7c3ec13b44d8..fc9997b73c09 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -210,6 +210,9 @@ static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
210#define in_be32(a) __raw_readl((const void __iomem __force *)(a)) 210#define in_be32(a) __raw_readl((const void __iomem __force *)(a))
211#define in_be16(a) __raw_readw(a) 211#define in_be16(a) __raw_readw(a)
212 212
213#define writel_be(v, a) out_be32((__force unsigned *)a, v)
214#define readl_be(a) in_be32((__force unsigned *)a)
215
213/* 216/*
214 * Little endian 217 * Little endian
215 */ 218 */
diff --git a/arch/microblaze/include/asm/ipc.h b/arch/microblaze/include/asm/ipc.h
deleted file mode 100644
index a46e3d9c2a3f..000000000000
--- a/arch/microblaze/include/asm/ipc.h
+++ /dev/null
@@ -1 +0,0 @@
1#include <asm-generic/ipc.h>
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index 72aceae88680..880c988c2237 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -17,6 +17,7 @@
17 17
18#include <linux/pfn.h> 18#include <linux/pfn.h>
19#include <asm/setup.h> 19#include <asm/setup.h>
20#include <asm/asm-compat.h>
20#include <linux/const.h> 21#include <linux/const.h>
21 22
22#ifdef __KERNEL__ 23#ifdef __KERNEL__
@@ -26,6 +27,8 @@
26#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) 27#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
27#define PAGE_MASK (~(PAGE_SIZE-1)) 28#define PAGE_MASK (~(PAGE_SIZE-1))
28 29
30#define LOAD_OFFSET ASM_CONST((CONFIG_KERNEL_START-CONFIG_KERNEL_BASE_ADDR))
31
29#ifndef __ASSEMBLY__ 32#ifndef __ASSEMBLY__
30 33
31#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1))) 34#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 27f8dafd8c34..ed67c9ed15b8 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -38,7 +38,7 @@ extern void early_console_reg_tlb_alloc(unsigned int addr);
38void time_init(void); 38void time_init(void);
39void init_IRQ(void); 39void init_IRQ(void);
40void machine_early_init(const char *cmdline, unsigned int ram, 40void machine_early_init(const char *cmdline, unsigned int ram,
41 unsigned int fdt); 41 unsigned int fdt, unsigned int msr);
42 42
43void machine_restart(char *cmd); 43void machine_restart(char *cmd);
44void machine_shutdown(void); 44void machine_shutdown(void);
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
new file mode 100644
index 000000000000..048dfcd8d89d
--- /dev/null
+++ b/arch/microblaze/include/asm/syscall.h
@@ -0,0 +1,99 @@
1#ifndef __ASM_MICROBLAZE_SYSCALL_H
2#define __ASM_MICROBLAZE_SYSCALL_H
3
4#include <linux/kernel.h>
5#include <linux/sched.h>
6#include <asm/ptrace.h>
7
8/* The system call number is given by the user in R12 */
9static inline long syscall_get_nr(struct task_struct *task,
10 struct pt_regs *regs)
11{
12 return regs->r12;
13}
14
15static inline void syscall_rollback(struct task_struct *task,
16 struct pt_regs *regs)
17{
18 /* TODO. */
19}
20
21static inline long syscall_get_error(struct task_struct *task,
22 struct pt_regs *regs)
23{
24 return IS_ERR_VALUE(regs->r3) ? regs->r3 : 0;
25}
26
27static inline long syscall_get_return_value(struct task_struct *task,
28 struct pt_regs *regs)
29{
30 return regs->r3;
31}
32
33static inline void syscall_set_return_value(struct task_struct *task,
34 struct pt_regs *regs,
35 int error, long val)
36{
37 if (error)
38 regs->r3 = -error;
39 else
40 regs->r3 = val;
41}
42
43static inline microblaze_reg_t microblaze_get_syscall_arg(struct pt_regs *regs,
44 unsigned int n)
45{
46 switch (n) {
47 case 5: return regs->r10;
48 case 4: return regs->r9;
49 case 3: return regs->r8;
50 case 2: return regs->r7;
51 case 1: return regs->r6;
52 case 0: return regs->r5;
53 default:
54 BUG();
55 }
56 return ~0;
57}
58
59static inline void microblaze_set_syscall_arg(struct pt_regs *regs,
60 unsigned int n,
61 unsigned long val)
62{
63 switch (n) {
64 case 5:
65 regs->r10 = val;
66 case 4:
67 regs->r9 = val;
68 case 3:
69 regs->r8 = val;
70 case 2:
71 regs->r7 = val;
72 case 1:
73 regs->r6 = val;
74 case 0:
75 regs->r5 = val;
76 default:
77 BUG();
78 }
79}
80
81static inline void syscall_get_arguments(struct task_struct *task,
82 struct pt_regs *regs,
83 unsigned int i, unsigned int n,
84 unsigned long *args)
85{
86 while (n--)
87 *args++ = microblaze_get_syscall_arg(regs, i++);
88}
89
90static inline void syscall_set_arguments(struct task_struct *task,
91 struct pt_regs *regs,
92 unsigned int i, unsigned int n,
93 const unsigned long *args)
94{
95 while (n--)
96 microblaze_set_syscall_arg(regs, i++, *args++);
97}
98
99#endif /* __ASM_MICROBLAZE_SYSCALL_H */
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
index c411c6757deb..3539babc1c18 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -28,6 +28,7 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
28 {"7.10.d", 0x0b}, 28 {"7.10.d", 0x0b},
29 {"7.20.a", 0x0c}, 29 {"7.20.a", 0x0c},
30 {"7.20.b", 0x0d}, 30 {"7.20.b", 0x0d},
31 {"7.20.c", 0x0e},
31 /* FIXME There is no keycode defined in MBV for these versions */ 32 /* FIXME There is no keycode defined in MBV for these versions */
32 {"2.10.a", 0x10}, 33 {"2.10.a", 0x10},
33 {"3.00.a", 0x20}, 34 {"3.00.a", 0x20},
@@ -49,6 +50,8 @@ const struct family_string_key family_string_lookup[] = {
49 {"spartan3a", 0xa}, 50 {"spartan3a", 0xa},
50 {"spartan3an", 0xb}, 51 {"spartan3an", 0xb},
51 {"spartan3adsp", 0xc}, 52 {"spartan3adsp", 0xc},
53 {"spartan6", 0xd},
54 {"virtex6", 0xe},
52 /* FIXME There is no key code defined for spartan2 */ 55 /* FIXME There is no key code defined for spartan2 */
53 {"spartan2", 0xf0}, 56 {"spartan2", 0xf0},
54 {NULL, 0}, 57 {NULL, 0},
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index c7353e79f4a2..acc1f05d1e2c 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -308,38 +308,69 @@ C_ENTRY(_user_exception):
308 swi r12, r1, PTO+PT_R0; 308 swi r12, r1, PTO+PT_R0;
309 tovirt(r1,r1) 309 tovirt(r1,r1)
310 310
311 la r15, r0, ret_from_trap-8
312/* where the trap should return need -8 to adjust for rtsd r15, 8*/ 311/* where the trap should return need -8 to adjust for rtsd r15, 8*/
313/* Jump to the appropriate function for the system call number in r12 312/* Jump to the appropriate function for the system call number in r12
314 * (r12 is not preserved), or return an error if r12 is not valid. The LP 313 * (r12 is not preserved), or return an error if r12 is not valid. The LP
315 * register should point to the location where 314 * register should point to the location where
316 * the called function should return. [note that MAKE_SYS_CALL uses label 1] */ 315 * the called function should return. [note that MAKE_SYS_CALL uses label 1] */
317 /* See if the system call number is valid. */ 316
317 # Step into virtual mode.
318 set_vms;
319 addik r11, r0, 3f
320 rtid r11, 0
321 nop
3223:
323 add r11, r0, CURRENT_TASK /* Get current task ptr into r11 */
324 lwi r11, r11, TS_THREAD_INFO /* get thread info */
325 lwi r11, r11, TI_FLAGS /* get flags in thread info */
326 andi r11, r11, _TIF_WORK_SYSCALL_MASK
327 beqi r11, 4f
328
329 addik r3, r0, -ENOSYS
330 swi r3, r1, PTO + PT_R3
331 brlid r15, do_syscall_trace_enter
332 addik r5, r1, PTO + PT_R0
333
334 # do_syscall_trace_enter returns the new syscall nr.
335 addk r12, r0, r3
336 lwi r5, r1, PTO+PT_R5;
337 lwi r6, r1, PTO+PT_R6;
338 lwi r7, r1, PTO+PT_R7;
339 lwi r8, r1, PTO+PT_R8;
340 lwi r9, r1, PTO+PT_R9;
341 lwi r10, r1, PTO+PT_R10;
3424:
343/* Jump to the appropriate function for the system call number in r12
344 * (r12 is not preserved), or return an error if r12 is not valid.
345 * The LP register should point to the location where the called function
346 * should return. [note that MAKE_SYS_CALL uses label 1] */
347 /* See if the system call number is valid */
318 addi r11, r12, -__NR_syscalls; 348 addi r11, r12, -__NR_syscalls;
319 bgei r11,1f; 349 bgei r11,5f;
320 /* Figure out which function to use for this system call. */ 350 /* Figure out which function to use for this system call. */
321 /* Note Microblaze barrel shift is optional, so don't rely on it */ 351 /* Note Microblaze barrel shift is optional, so don't rely on it */
322 add r12, r12, r12; /* convert num -> ptr */ 352 add r12, r12, r12; /* convert num -> ptr */
323 add r12, r12, r12; 353 add r12, r12, r12;
324 354
325 /* Trac syscalls and stored them to r0_ram */ 355 /* Trac syscalls and stored them to r0_ram */
326 lwi r3, r12, 0x400 + TOPHYS(r0_ram) 356 lwi r3, r12, 0x400 + r0_ram
327 addi r3, r3, 1 357 addi r3, r3, 1
328 swi r3, r12, 0x400 + TOPHYS(r0_ram) 358 swi r3, r12, 0x400 + r0_ram
359
360 # Find and jump into the syscall handler.
361 lwi r12, r12, sys_call_table
362 /* where the trap should return need -8 to adjust for rtsd r15, 8 */
363 la r15, r0, ret_from_trap-8
364 bra r12
329 365
330 lwi r12, r12, TOPHYS(sys_call_table); /* Function ptr */
331 /* Make the system call. to r12*/
332 set_vms;
333 rtid r12, 0;
334 nop;
335 /* The syscall number is invalid, return an error. */ 366 /* The syscall number is invalid, return an error. */
3361: VM_ON; /* RETURN() expects virtual mode*/ 3675:
337 addi r3, r0, -ENOSYS; 368 addi r3, r0, -ENOSYS;
338 rtsd r15,8; /* looks like a normal subroutine return */ 369 rtsd r15,8; /* looks like a normal subroutine return */
339 or r0, r0, r0 370 or r0, r0, r0
340 371
341 372
342/* Entry point used to return from a syscall/trap. */ 373/* Entry point used to return from a syscall/trap */
343/* We re-enable BIP bit before state restore */ 374/* We re-enable BIP bit before state restore */
344C_ENTRY(ret_from_trap): 375C_ENTRY(ret_from_trap):
345 set_bip; /* Ints masked for state restore*/ 376 set_bip; /* Ints masked for state restore*/
@@ -349,6 +380,23 @@ C_ENTRY(ret_from_trap):
349 380
350 /* We're returning to user mode, so check for various conditions that 381 /* We're returning to user mode, so check for various conditions that
351 * trigger rescheduling. */ 382 * trigger rescheduling. */
383 # FIXME: Restructure all these flag checks.
384 add r11, r0, CURRENT_TASK; /* Get current task ptr into r11 */
385 lwi r11, r11, TS_THREAD_INFO; /* get thread info */
386 lwi r11, r11, TI_FLAGS; /* get flags in thread info */
387 andi r11, r11, _TIF_WORK_SYSCALL_MASK
388 beqi r11, 1f
389
390 swi r3, r1, PTO + PT_R3
391 swi r4, r1, PTO + PT_R4
392 brlid r15, do_syscall_trace_leave
393 addik r5, r1, PTO + PT_R0
394 lwi r3, r1, PTO + PT_R3
395 lwi r4, r1, PTO + PT_R4
3961:
397
398 /* We're returning to user mode, so check for various conditions that
399 * trigger rescheduling. */
352 /* Get current task ptr into r11 */ 400 /* Get current task ptr into r11 */
353 add r11, r0, CURRENT_TASK; /* Get current task ptr into r11 */ 401 add r11, r0, CURRENT_TASK; /* Get current task ptr into r11 */
354 lwi r11, r11, TS_THREAD_INFO; /* get thread info */ 402 lwi r11, r11, TS_THREAD_INFO; /* get thread info */
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
index 0cb64a31e89a..d9f70f83097f 100644
--- a/arch/microblaze/kernel/exceptions.c
+++ b/arch/microblaze/kernel/exceptions.c
@@ -72,7 +72,8 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
72#endif 72#endif
73 73
74#if 0 74#if 0
75 printk(KERN_WARNING "Exception %02x in %s mode, FSR=%08x PC=%08x ESR=%08x\n", 75 printk(KERN_WARNING "Exception %02x in %s mode, FSR=%08x PC=%08x " \
76 "ESR=%08x\n",
76 type, user_mode(regs) ? "user" : "kernel", fsr, 77 type, user_mode(regs) ? "user" : "kernel", fsr,
77 (unsigned int) regs->pc, (unsigned int) regs->esr); 78 (unsigned int) regs->pc, (unsigned int) regs->esr);
78#endif 79#endif
@@ -80,42 +81,50 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
80 switch (type & 0x1F) { 81 switch (type & 0x1F) {
81 case MICROBLAZE_ILL_OPCODE_EXCEPTION: 82 case MICROBLAZE_ILL_OPCODE_EXCEPTION:
82 if (user_mode(regs)) { 83 if (user_mode(regs)) {
83 printk(KERN_WARNING "Illegal opcode exception in user mode.\n"); 84 pr_debug(KERN_WARNING "Illegal opcode exception " \
85 "in user mode.\n");
84 _exception(SIGILL, regs, ILL_ILLOPC, addr); 86 _exception(SIGILL, regs, ILL_ILLOPC, addr);
85 return; 87 return;
86 } 88 }
87 printk(KERN_WARNING "Illegal opcode exception in kernel mode.\n"); 89 printk(KERN_WARNING "Illegal opcode exception " \
90 "in kernel mode.\n");
88 die("opcode exception", regs, SIGBUS); 91 die("opcode exception", regs, SIGBUS);
89 break; 92 break;
90 case MICROBLAZE_IBUS_EXCEPTION: 93 case MICROBLAZE_IBUS_EXCEPTION:
91 if (user_mode(regs)) { 94 if (user_mode(regs)) {
92 printk(KERN_WARNING "Instruction bus error exception in user mode.\n"); 95 pr_debug(KERN_WARNING "Instruction bus error " \
96 "exception in user mode.\n");
93 _exception(SIGBUS, regs, BUS_ADRERR, addr); 97 _exception(SIGBUS, regs, BUS_ADRERR, addr);
94 return; 98 return;
95 } 99 }
96 printk(KERN_WARNING "Instruction bus error exception in kernel mode.\n"); 100 printk(KERN_WARNING "Instruction bus error exception " \
101 "in kernel mode.\n");
97 die("bus exception", regs, SIGBUS); 102 die("bus exception", regs, SIGBUS);
98 break; 103 break;
99 case MICROBLAZE_DBUS_EXCEPTION: 104 case MICROBLAZE_DBUS_EXCEPTION:
100 if (user_mode(regs)) { 105 if (user_mode(regs)) {
101 printk(KERN_WARNING "Data bus error exception in user mode.\n"); 106 pr_debug(KERN_WARNING "Data bus error exception " \
107 "in user mode.\n");
102 _exception(SIGBUS, regs, BUS_ADRERR, addr); 108 _exception(SIGBUS, regs, BUS_ADRERR, addr);
103 return; 109 return;
104 } 110 }
105 printk(KERN_WARNING "Data bus error exception in kernel mode.\n"); 111 printk(KERN_WARNING "Data bus error exception " \
112 "in kernel mode.\n");
106 die("bus exception", regs, SIGBUS); 113 die("bus exception", regs, SIGBUS);
107 break; 114 break;
108 case MICROBLAZE_DIV_ZERO_EXCEPTION: 115 case MICROBLAZE_DIV_ZERO_EXCEPTION:
109 if (user_mode(regs)) { 116 if (user_mode(regs)) {
110 printk(KERN_WARNING "Divide by zero exception in user mode\n"); 117 pr_debug(KERN_WARNING "Divide by zero exception " \
111 _exception(SIGILL, regs, ILL_ILLOPC, addr); 118 "in user mode\n");
119 _exception(SIGILL, regs, FPE_INTDIV, addr);
112 return; 120 return;
113 } 121 }
114 printk(KERN_WARNING "Divide by zero exception in kernel mode.\n"); 122 printk(KERN_WARNING "Divide by zero exception " \
123 "in kernel mode.\n");
115 die("Divide by exception", regs, SIGBUS); 124 die("Divide by exception", regs, SIGBUS);
116 break; 125 break;
117 case MICROBLAZE_FPU_EXCEPTION: 126 case MICROBLAZE_FPU_EXCEPTION:
118 printk(KERN_WARNING "FPU exception\n"); 127 pr_debug(KERN_WARNING "FPU exception\n");
119 /* IEEE FP exception */ 128 /* IEEE FP exception */
120 /* I removed fsr variable and use code var for storing fsr */ 129 /* I removed fsr variable and use code var for storing fsr */
121 if (fsr & FSR_IO) 130 if (fsr & FSR_IO)
@@ -133,7 +142,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
133 142
134#ifdef CONFIG_MMU 143#ifdef CONFIG_MMU
135 case MICROBLAZE_PRIVILEGED_EXCEPTION: 144 case MICROBLAZE_PRIVILEGED_EXCEPTION:
136 printk(KERN_WARNING "Privileged exception\n"); 145 pr_debug(KERN_WARNING "Privileged exception\n");
137 /* "brk r0,r0" - used as debug breakpoint */ 146 /* "brk r0,r0" - used as debug breakpoint */
138 if (get_user(code, (unsigned long *)regs->pc) == 0 147 if (get_user(code, (unsigned long *)regs->pc) == 0
139 && code == 0x980c0000) { 148 && code == 0x980c0000) {
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index e41c6ce2a7be..697ce3007f30 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -54,6 +54,16 @@ ENTRY(_start)
54 mfs r1, rmsr 54 mfs r1, rmsr
55 andi r1, r1, ~2 55 andi r1, r1, ~2
56 mts rmsr, r1 56 mts rmsr, r1
57/*
58 * Here is checking mechanism which check if Microblaze has msr instructions
59 * We load msr and compare it with previous r1 value - if is the same,
60 * msr instructions works if not - cpu don't have them.
61 */
62 /* r8=0 - I have msr instr, 1 - I don't have them */
63 rsubi r0, r0, 1 /* set the carry bit */
64 msrclr r0, 0x4 /* try to clear it */
65 /* read the carry bit, r8 will be '0' if msrclr exists */
66 addik r8, r0, 0
57 67
58/* r7 may point to an FDT, or there may be one linked in. 68/* r7 may point to an FDT, or there may be one linked in.
59 if it's in r7, we've got to save it away ASAP. 69 if it's in r7, we've got to save it away ASAP.
@@ -209,8 +219,8 @@ start_here:
209 * Please see $(ARCH)/mach-$(SUBARCH)/setup.c for 219 * Please see $(ARCH)/mach-$(SUBARCH)/setup.c for
210 * the function. 220 * the function.
211 */ 221 */
212 la r8, r0, machine_early_init 222 la r9, r0, machine_early_init
213 brald r15, r8 223 brald r15, r9
214 nop 224 nop
215 225
216#ifndef CONFIG_MMU 226#ifndef CONFIG_MMU
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 3288c9737671..6b0288ebccd6 100644
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -84,9 +84,10 @@
84#define NUM_TO_REG(num) r ## num 84#define NUM_TO_REG(num) r ## num
85 85
86#ifdef CONFIG_MMU 86#ifdef CONFIG_MMU
87/* FIXME you can't change first load of MSR because there is
88 * hardcoded jump bri 4 */
89 #define RESTORE_STATE \ 87 #define RESTORE_STATE \
88 lwi r5, r1, 0; \
89 mts rmsr, r5; \
90 nop; \
90 lwi r3, r1, PT_R3; \ 91 lwi r3, r1, PT_R3; \
91 lwi r4, r1, PT_R4; \ 92 lwi r4, r1, PT_R4; \
92 lwi r5, r1, PT_R5; \ 93 lwi r5, r1, PT_R5; \
@@ -309,6 +310,9 @@ _hw_exception_handler:
309 lwi r31, r0, TOPHYS(PER_CPU(CURRENT_SAVE)) /* get saved current */ 310 lwi r31, r0, TOPHYS(PER_CPU(CURRENT_SAVE)) /* get saved current */
310#endif 311#endif
311 312
313 mfs r5, rmsr;
314 nop
315 swi r5, r1, 0;
312 mfs r3, resr 316 mfs r3, resr
313 nop 317 nop
314 mfs r4, rear; 318 mfs r4, rear;
@@ -380,6 +384,8 @@ handle_other_ex: /* Handle Other exceptions here */
380 addk r8, r17, r0; /* Load exception address */ 384 addk r8, r17, r0; /* Load exception address */
381 bralid r15, full_exception; /* Branch to the handler */ 385 bralid r15, full_exception; /* Branch to the handler */
382 nop; 386 nop;
387 mts r0, rfsr; /* Clear sticky fsr */
388 nop
383 389
384 /* 390 /*
385 * Trigger execution of the signal handler by enabling 391 * Trigger execution of the signal handler by enabling
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 00b12c6d5326..4201c743cc9f 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -235,6 +235,7 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp)
235 regs->pc = pc; 235 regs->pc = pc;
236 regs->r1 = usp; 236 regs->r1 = usp;
237 regs->pt_mode = 0; 237 regs->pt_mode = 0;
238 regs->msr |= MSR_UMS;
238} 239}
239 240
240#ifdef CONFIG_MMU 241#ifdef CONFIG_MMU
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 53ff39af6a5c..4b3ac32754de 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -29,6 +29,10 @@
29#include <linux/sched.h> 29#include <linux/sched.h>
30#include <linux/ptrace.h> 30#include <linux/ptrace.h>
31#include <linux/signal.h> 31#include <linux/signal.h>
32#include <linux/elf.h>
33#include <linux/audit.h>
34#include <linux/seccomp.h>
35#include <linux/tracehook.h>
32 36
33#include <linux/errno.h> 37#include <linux/errno.h>
34#include <asm/processor.h> 38#include <asm/processor.h>
@@ -174,6 +178,64 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
174 return rval; 178 return rval;
175} 179}
176 180
181asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
182{
183 long ret = 0;
184
185 secure_computing(regs->r12);
186
187 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
188 tracehook_report_syscall_entry(regs))
189 /*
190 * Tracing decided this syscall should not happen.
191 * We'll return a bogus call number to get an ENOSYS
192 * error, but leave the original number in regs->regs[0].
193 */
194 ret = -1L;
195
196 if (unlikely(current->audit_context))
197 audit_syscall_entry(EM_XILINX_MICROBLAZE, regs->r12,
198 regs->r5, regs->r6,
199 regs->r7, regs->r8);
200
201 return ret ?: regs->r12;
202}
203
204asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
205{
206 int step;
207
208 if (unlikely(current->audit_context))
209 audit_syscall_exit(AUDITSC_RESULT(regs->r3), regs->r3);
210
211 step = test_thread_flag(TIF_SINGLESTEP);
212 if (step || test_thread_flag(TIF_SYSCALL_TRACE))
213 tracehook_report_syscall_exit(regs, step);
214}
215
216#if 0
217static asmlinkage void syscall_trace(void)
218{
219 if (!test_thread_flag(TIF_SYSCALL_TRACE))
220 return;
221 if (!(current->ptrace & PT_PTRACED))
222 return;
223 /* The 0x80 provides a way for the tracing parent to distinguish
224 between a syscall stop and SIGTRAP delivery */
225 ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
226 ? 0x80 : 0));
227 /*
228 * this isn't the same as continuing with a signal, but it will do
229 * for normal use. strace only continues with a signal if the
230 * stopping signal is not SIGTRAP. -brl
231 */
232 if (current->exit_code) {
233 send_sig(current->exit_code, current, 1);
234 current->exit_code = 0;
235 }
236}
237#endif
238
177void ptrace_disable(struct task_struct *child) 239void ptrace_disable(struct task_struct *child)
178{ 240{
179 /* nothing to do */ 241 /* nothing to do */
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 2a97bf513b64..8c1e0f4dcf18 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -94,7 +94,7 @@ inline unsigned get_romfs_len(unsigned *addr)
94#endif /* CONFIG_MTD_UCLINUX_EBSS */ 94#endif /* CONFIG_MTD_UCLINUX_EBSS */
95 95
96void __init machine_early_init(const char *cmdline, unsigned int ram, 96void __init machine_early_init(const char *cmdline, unsigned int ram,
97 unsigned int fdt) 97 unsigned int fdt, unsigned int msr)
98{ 98{
99 unsigned long *src, *dst = (unsigned long *)0x0; 99 unsigned long *src, *dst = (unsigned long *)0x0;
100 100
@@ -157,6 +157,16 @@ void __init machine_early_init(const char *cmdline, unsigned int ram,
157 early_printk("New klimit: 0x%08x\n", (unsigned)klimit); 157 early_printk("New klimit: 0x%08x\n", (unsigned)klimit);
158#endif 158#endif
159 159
160#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
161 if (msr)
162 early_printk("!!!Your kernel has setup MSR instruction but "
163 "CPU don't have it %d\n", msr);
164#else
165 if (!msr)
166 early_printk("!!!Your kernel not setup MSR instruction but "
167 "CPU have it %d\n", msr);
168#endif
169
160 for (src = __ivt_start; src < __ivt_end; src++, dst++) 170 for (src = __ivt_start; src < __ivt_end; src++, dst++)
161 *dst = *src; 171 *dst = *src;
162 172
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index ec5fa91a48d8..e704188d7855 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -12,13 +12,16 @@ OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze")
12OUTPUT_ARCH(microblaze) 12OUTPUT_ARCH(microblaze)
13ENTRY(_start) 13ENTRY(_start)
14 14
15#include <asm/page.h>
15#include <asm-generic/vmlinux.lds.h> 16#include <asm-generic/vmlinux.lds.h>
17#include <asm/thread_info.h>
16 18
17jiffies = jiffies_64 + 4; 19jiffies = jiffies_64 + 4;
18 20
19SECTIONS { 21SECTIONS {
20 . = CONFIG_KERNEL_START; 22 . = CONFIG_KERNEL_START;
21 .text : { 23 _start = CONFIG_KERNEL_BASE_ADDR;
24 .text : AT(ADDR(.text) - LOAD_OFFSET) {
22 _text = . ; 25 _text = . ;
23 _stext = . ; 26 _stext = . ;
24 *(.text .text.*) 27 *(.text .text.*)
@@ -33,24 +36,22 @@ SECTIONS {
33 } 36 }
34 37
35 . = ALIGN (4) ; 38 . = ALIGN (4) ;
36 _fdt_start = . ; /* place for fdt blob */ 39 __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
37 . = . + 0x4000; 40 _fdt_start = . ; /* place for fdt blob */
38 _fdt_end = . ; 41 *(__fdt_blob) ; /* Any link-placed DTB */
42 . = _fdt_start + 0x4000; /* Pad up to 16kbyte */
43 _fdt_end = . ;
44 }
39 45
40 . = ALIGN(16); 46 . = ALIGN(16);
41 RODATA 47 RODATA
42 . = ALIGN(16); 48 EXCEPTION_TABLE(16)
43 __ex_table : {
44 __start___ex_table = .;
45 *(__ex_table)
46 __stop___ex_table = .;
47 }
48 49
49 /* 50 /*
50 * sdata2 section can go anywhere, but must be word aligned 51 * sdata2 section can go anywhere, but must be word aligned
51 * and SDA2_BASE must point to the middle of it 52 * and SDA2_BASE must point to the middle of it
52 */ 53 */
53 .sdata2 : { 54 .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
54 _ssrw = .; 55 _ssrw = .;
55 . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */ 56 . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */
56 *(.sdata2) 57 *(.sdata2)
@@ -61,12 +62,7 @@ SECTIONS {
61 } 62 }
62 63
63 _sdata = . ; 64 _sdata = . ;
64 .data ALIGN (4096) : { /* page aligned when MMU used - origin 0x4 */ 65 RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
65 DATA_DATA
66 CONSTRUCTORS
67 }
68 . = ALIGN(32);
69 .data.cacheline_aligned : { *(.data.cacheline_aligned) }
70 _edata = . ; 66 _edata = . ;
71 67
72 /* Reserve some low RAM for r0 based memory references */ 68 /* Reserve some low RAM for r0 based memory references */
@@ -74,18 +70,14 @@ SECTIONS {
74 r0_ram = . ; 70 r0_ram = . ;
75 . = . + 4096; /* a page should be enough */ 71 . = . + 4096; /* a page should be enough */
76 72
77 /* The initial task */
78 . = ALIGN(8192);
79 .data.init_task : { *(.data.init_task) }
80
81 /* Under the microblaze ABI, .sdata and .sbss must be contiguous */ 73 /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
82 . = ALIGN(8); 74 . = ALIGN(8);
83 .sdata : { 75 .sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
84 _ssro = .; 76 _ssro = .;
85 *(.sdata) 77 *(.sdata)
86 } 78 }
87 79
88 .sbss : { 80 .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {
89 _ssbss = .; 81 _ssbss = .;
90 *(.sbss) 82 *(.sbss)
91 _esbss = .; 83 _esbss = .;
@@ -96,47 +88,36 @@ SECTIONS {
96 88
97 __init_begin = .; 89 __init_begin = .;
98 90
99 . = ALIGN(4096); 91 INIT_TEXT_SECTION(PAGE_SIZE)
100 .init.text : {
101 _sinittext = . ;
102 INIT_TEXT
103 _einittext = .;
104 }
105 92
106 .init.data : { 93 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
107 INIT_DATA 94 INIT_DATA
108 } 95 }
109 96
110 . = ALIGN(4); 97 . = ALIGN(4);
111 .init.ivt : { 98 .init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
112 __ivt_start = .; 99 __ivt_start = .;
113 *(.init.ivt) 100 *(.init.ivt)
114 __ivt_end = .; 101 __ivt_end = .;
115 } 102 }
116 103
117 .init.setup : { 104 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
118 __setup_start = .; 105 INIT_SETUP(0)
119 *(.init.setup)
120 __setup_end = .;
121 } 106 }
122 107
123 .initcall.init : { 108 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
124 __initcall_start = .; 109 INIT_CALLS
125 INITCALLS
126 __initcall_end = .;
127 } 110 }
128 111
129 .con_initcall.init : { 112 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
130 __con_initcall_start = .; 113 CON_INITCALL
131 *(.con_initcall.init)
132 __con_initcall_end = .;
133 } 114 }
134 115
135 SECURITY_INIT 116 SECURITY_INIT
136 117
137 __init_end_before_initramfs = .; 118 __init_end_before_initramfs = .;
138 119
139 .init.ramfs ALIGN(4096) : { 120 .init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
140 __initramfs_start = .; 121 __initramfs_start = .;
141 *(.init.ramfs) 122 *(.init.ramfs)
142 __initramfs_end = .; 123 __initramfs_end = .;
@@ -152,7 +133,8 @@ SECTIONS {
152 } 133 }
153 __init_end = .; 134 __init_end = .;
154 135
155 .bss ALIGN (4096) : { /* page aligned when MMU used */ 136 .bss ALIGN (4096) : AT(ADDR(.bss) - LOAD_OFFSET) {
137 /* page aligned when MMU used */
156 __bss_start = . ; 138 __bss_start = . ;
157 *(.bss*) 139 *(.bss*)
158 *(COMMON) 140 *(COMMON)
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 1110784eb3f7..a44892e7cd5b 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -180,7 +180,8 @@ void free_initrd_mem(unsigned long start, unsigned long end)
180 totalram_pages++; 180 totalram_pages++;
181 pages++; 181 pages++;
182 } 182 }
183 printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages); 183 printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n",
184 (int)(pages * (PAGE_SIZE / 1024)));
184} 185}
185#endif 186#endif
186 187
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-03 19:47:13 -0500