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-rw-r--r--arch/sh/Kconfig27
-rw-r--r--arch/sh/Kconfig.debug2
-rw-r--r--arch/sh/Makefile16
-rw-r--r--arch/sh/boards/Makefile2
-rw-r--r--arch/sh/boards/board-ap325rxa.c1
-rw-r--r--arch/sh/boards/mach-se/7343/irq.c1
-rw-r--r--arch/sh/configs/dreamcast_defconfig14
-rw-r--r--arch/sh/include/asm/a.out.h20
-rw-r--r--arch/sh/include/asm/ptrace.h9
-rw-r--r--arch/sh/include/asm/seccomp.h10
-rw-r--r--arch/sh/include/asm/thread_info.h51
-rw-r--r--arch/sh/include/asm/tlb_64.h12
-rw-r--r--arch/sh/include/cpu-sh2/cpu/cache.h6
-rw-r--r--arch/sh/include/cpu-sh2a/cpu/addrspace.h10
-rw-r--r--arch/sh/include/cpu-sh2a/cpu/cache.h3
-rw-r--r--arch/sh/include/cpu-sh2a/cpu/cacheflush.h34
-rw-r--r--arch/sh/kernel/cpu/sh4/sq.c2
-rw-r--r--arch/sh/kernel/cpu/sh5/entry.S19
-rw-r--r--arch/sh/kernel/entry-common.S16
-rw-r--r--arch/sh/kernel/machine_kexec.c8
-rw-r--r--arch/sh/kernel/module.c7
-rw-r--r--arch/sh/kernel/ptrace_32.c157
-rw-r--r--arch/sh/kernel/ptrace_64.c144
-rw-r--r--arch/sh/kernel/setup.c20
-rw-r--r--arch/sh/kernel/signal_32.c22
-rw-r--r--arch/sh/kernel/signal_64.c166
-rw-r--r--arch/sh/mm/Kconfig1
-rw-r--r--arch/sh/mm/Makefile_3211
-rw-r--r--arch/sh/mm/cache-sh2.c45
-rw-r--r--arch/sh/mm/cache-sh2a.c129
-rw-r--r--arch/sh/mm/tlb-sh5.c20
-rw-r--r--arch/sh/tools/Makefile4
32 files changed, 592 insertions, 397 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index cb992c3d6b71..5131d50f851a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -48,6 +48,9 @@ config GENERIC_HWEIGHT
48config GENERIC_HARDIRQS 48config GENERIC_HARDIRQS
49 def_bool y 49 def_bool y
50 50
51config GENERIC_HARDIRQS_NO__DO_IRQ
52 def_bool y
53
51config GENERIC_IRQ_PROBE 54config GENERIC_IRQ_PROBE
52 def_bool y 55 def_bool y
53 56
@@ -63,6 +66,10 @@ config GENERIC_TIME
63config GENERIC_CLOCKEVENTS 66config GENERIC_CLOCKEVENTS
64 def_bool n 67 def_bool n
65 68
69config GENERIC_LOCKBREAK
70 def_bool y
71 depends on SMP && PREEMPT
72
66config SYS_SUPPORTS_PM 73config SYS_SUPPORTS_PM
67 bool 74 bool
68 75
@@ -94,9 +101,6 @@ config ARCH_HAS_ILOG2_U64
94config ARCH_NO_VIRT_TO_BUS 101config ARCH_NO_VIRT_TO_BUS
95 def_bool y 102 def_bool y
96 103
97config ARCH_SUPPORTS_AOUT
98 def_bool y
99
100config IO_TRAPPED 104config IO_TRAPPED
101 bool 105 bool
102 106
@@ -483,6 +487,23 @@ config CRASH_DUMP
483 487
484 For more details see Documentation/kdump/kdump.txt 488 For more details see Documentation/kdump/kdump.txt
485 489
490config SECCOMP
491 bool "Enable seccomp to safely compute untrusted bytecode"
492 depends on PROC_FS
493 default y
494 help
495 This kernel feature is useful for number crunching applications
496 that may need to compute untrusted bytecode during their
497 execution. By using pipes or other transports made available to
498 the process as file descriptors supporting the read/write
499 syscalls, it's possible to isolate those applications in
500 their own address space using seccomp. Once seccomp is
501 enabled via prctl, it cannot be disabled and the task is only
502 allowed to execute a few safe syscalls defined by each seccomp
503 mode.
504
505 If unsure, say N.
506
486config SMP 507config SMP
487 bool "Symmetric multi-processing support" 508 bool "Symmetric multi-processing support"
488 depends on SYS_SUPPORTS_SMP 509 depends on SYS_SUPPORTS_SMP
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 36f4b1f7066d..4d2d102e00d5 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -182,7 +182,7 @@ if SUPERH64
182 182
183config SH64_PROC_ASIDS 183config SH64_PROC_ASIDS
184 bool "Debug: report ASIDs through /proc/asids" 184 bool "Debug: report ASIDs through /proc/asids"
185 depends on PROC_FS 185 depends on PROC_FS && MMU
186 186
187config SH64_SR_WATCH 187config SH64_SR_WATCH
188 bool "Debug: set SR.WATCH to enable hardware watchpoints and trace" 188 bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 25659ce74baa..01d85c74481d 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -95,8 +95,6 @@ head-y := arch/sh/kernel/init_task.o
95head-$(CONFIG_SUPERH32) += arch/sh/kernel/head_32.o 95head-$(CONFIG_SUPERH32) += arch/sh/kernel/head_32.o
96head-$(CONFIG_SUPERH64) += arch/sh/kernel/head_64.o 96head-$(CONFIG_SUPERH64) += arch/sh/kernel/head_64.o
97 97
98LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
99
100core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/ 98core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
101core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ 99core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/
102 100
@@ -145,10 +143,6 @@ cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4
145cpuincdir-$(CONFIG_CPU_SH5) += cpu-sh5 143cpuincdir-$(CONFIG_CPU_SH5) += cpu-sh5
146cpuincdir-y += cpu-common # Must be last 144cpuincdir-y += cpu-common # Must be last
147 145
148libs-$(CONFIG_SUPERH32) := arch/sh/lib/ $(libs-y)
149libs-$(CONFIG_SUPERH64) := arch/sh/lib64/ $(libs-y)
150libs-y += $(LIBGCC)
151
152drivers-y += arch/sh/drivers/ 146drivers-y += arch/sh/drivers/
153drivers-$(CONFIG_OPROFILE) += arch/sh/oprofile/ 147drivers-$(CONFIG_OPROFILE) += arch/sh/oprofile/
154 148
@@ -161,10 +155,16 @@ KBUILD_CFLAGS += -pipe $(cflags-y)
161KBUILD_CPPFLAGS += $(cflags-y) 155KBUILD_CPPFLAGS += $(cflags-y)
162KBUILD_AFLAGS += $(cflags-y) 156KBUILD_AFLAGS += $(cflags-y)
163 157
158LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
159
160libs-$(CONFIG_SUPERH32) := arch/sh/lib/ $(libs-y)
161libs-$(CONFIG_SUPERH64) := arch/sh/lib64/ $(libs-y)
162libs-y += $(LIBGCC)
163
164PHONY += maketools FORCE 164PHONY += maketools FORCE
165 165
166maketools: include/linux/version.h FORCE 166maketools: include/linux/version.h FORCE
167 $(Q)$(MAKE) $(build)=arch/sh/tools arch/sh/include/asm/machtypes.h 167 $(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
168 168
169all: $(KBUILD_IMAGE) 169all: $(KBUILD_IMAGE)
170 170
@@ -215,4 +215,4 @@ arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S
215 $(call filechk,gen-syscalltab) 215 $(call filechk,gen-syscalltab)
216 216
217CLEAN_FILES += arch/sh/lib64/syscalltab.h \ 217CLEAN_FILES += arch/sh/lib64/syscalltab.h \
218 arch/sh/include/asm/machtypes.h 218 include/asm-sh/machtypes.h
diff --git a/arch/sh/boards/Makefile b/arch/sh/boards/Makefile
index ff9b93c5a91b..463022c7df3c 100644
--- a/arch/sh/boards/Makefile
+++ b/arch/sh/boards/Makefile
@@ -5,4 +5,4 @@ obj-$(CONFIG_SH_AP325RXA) += board-ap325rxa.o
5obj-$(CONFIG_SH_MAGIC_PANEL_R2) += board-magicpanelr2.o 5obj-$(CONFIG_SH_MAGIC_PANEL_R2) += board-magicpanelr2.o
6obj-$(CONFIG_SH_RSK7203) += board-rsk7203.o 6obj-$(CONFIG_SH_RSK7203) += board-rsk7203.o
7obj-$(CONFIG_SH_SH7785LCR) += board-sh7785lcr.o 7obj-$(CONFIG_SH_SH7785LCR) += board-sh7785lcr.o
8obj-$(CONFIG_SH_SHMIN) += board-shmin..o 8obj-$(CONFIG_SH_SHMIN) += board-shmin.o
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 9c71603d29a2..025d4fe55a58 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -17,7 +17,6 @@
17#include <linux/mtd/physmap.h> 17#include <linux/mtd/physmap.h>
18#include <linux/delay.h> 18#include <linux/delay.h>
19#include <linux/i2c.h> 19#include <linux/i2c.h>
20#include <linux/delay.h>
21#include <linux/smc911x.h> 20#include <linux/smc911x.h>
22#include <media/soc_camera_platform.h> 21#include <media/soc_camera_platform.h>
23#include <media/sh_mobile_ceu.h> 22#include <media/sh_mobile_ceu.h>
diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c
index 5d96e2eef82a..051c29d4eae0 100644
--- a/arch/sh/boards/mach-se/7343/irq.c
+++ b/arch/sh/boards/mach-se/7343/irq.c
@@ -13,7 +13,6 @@
13#include <linux/init.h> 13#include <linux/init.h>
14#include <linux/irq.h> 14#include <linux/irq.h>
15#include <linux/interrupt.h> 15#include <linux/interrupt.h>
16#include <linux/irq.h>
17#include <linux/io.h> 16#include <linux/io.h>
18#include <mach-se/mach/se7343.h> 17#include <mach-se/mach/se7343.h>
19 18
diff --git a/arch/sh/configs/dreamcast_defconfig b/arch/sh/configs/dreamcast_defconfig
index d4075283956d..3dc1cbd8a981 100644
--- a/arch/sh/configs/dreamcast_defconfig
+++ b/arch/sh/configs/dreamcast_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: 2.6.26 3# Linux kernel version: 2.6.27-rc1
4# Wed Jul 30 01:34:24 2008 4# Mon Aug 4 16:49:13 2008
5# 5#
6CONFIG_SUPERH=y 6CONFIG_SUPERH=y
7CONFIG_SUPERH32=y 7CONFIG_SUPERH32=y
@@ -11,6 +11,7 @@ CONFIG_GENERIC_BUG=y
11CONFIG_GENERIC_FIND_NEXT_BIT=y 11CONFIG_GENERIC_FIND_NEXT_BIT=y
12CONFIG_GENERIC_HWEIGHT=y 12CONFIG_GENERIC_HWEIGHT=y
13CONFIG_GENERIC_HARDIRQS=y 13CONFIG_GENERIC_HARDIRQS=y
14CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
14CONFIG_GENERIC_IRQ_PROBE=y 15CONFIG_GENERIC_IRQ_PROBE=y
15CONFIG_GENERIC_CALIBRATE_DELAY=y 16CONFIG_GENERIC_CALIBRATE_DELAY=y
16CONFIG_GENERIC_TIME=y 17CONFIG_GENERIC_TIME=y
@@ -21,7 +22,6 @@ CONFIG_LOCKDEP_SUPPORT=y
21# CONFIG_ARCH_HAS_ILOG2_U32 is not set 22# CONFIG_ARCH_HAS_ILOG2_U32 is not set
22# CONFIG_ARCH_HAS_ILOG2_U64 is not set 23# CONFIG_ARCH_HAS_ILOG2_U64 is not set
23CONFIG_ARCH_NO_VIRT_TO_BUS=y 24CONFIG_ARCH_NO_VIRT_TO_BUS=y
24CONFIG_ARCH_SUPPORTS_AOUT=y
25CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" 25CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
26 26
27# 27#
@@ -87,6 +87,7 @@ CONFIG_HAVE_OPROFILE=y
87# CONFIG_USE_GENERIC_SMP_HELPERS is not set 87# CONFIG_USE_GENERIC_SMP_HELPERS is not set
88CONFIG_HAVE_CLK=y 88CONFIG_HAVE_CLK=y
89CONFIG_PROC_PAGE_MONITOR=y 89CONFIG_PROC_PAGE_MONITOR=y
90CONFIG_HAVE_GENERIC_DMA_COHERENT=y
90CONFIG_SLABINFO=y 91CONFIG_SLABINFO=y
91CONFIG_RT_MUTEXES=y 92CONFIG_RT_MUTEXES=y
92# CONFIG_TINY_SHMEM is not set 93# CONFIG_TINY_SHMEM is not set
@@ -284,6 +285,7 @@ CONFIG_HZ=250
284# CONFIG_SCHED_HRTICK is not set 285# CONFIG_SCHED_HRTICK is not set
285# CONFIG_KEXEC is not set 286# CONFIG_KEXEC is not set
286# CONFIG_CRASH_DUMP is not set 287# CONFIG_CRASH_DUMP is not set
288CONFIG_SECCOMP=y
287# CONFIG_PREEMPT_NONE is not set 289# CONFIG_PREEMPT_NONE is not set
288# CONFIG_PREEMPT_VOLUNTARY is not set 290# CONFIG_PREEMPT_VOLUNTARY is not set
289CONFIG_PREEMPT=y 291CONFIG_PREEMPT=y
@@ -317,10 +319,6 @@ CONFIG_PCI_LEGACY=y
317# 319#
318CONFIG_BINFMT_ELF=y 320CONFIG_BINFMT_ELF=y
319# CONFIG_BINFMT_MISC is not set 321# CONFIG_BINFMT_MISC is not set
320
321#
322# Networking
323#
324CONFIG_NET=y 322CONFIG_NET=y
325 323
326# 324#
@@ -555,7 +553,7 @@ CONFIG_INPUT_KEYBOARD=y
555# CONFIG_KEYBOARD_XTKBD is not set 553# CONFIG_KEYBOARD_XTKBD is not set
556# CONFIG_KEYBOARD_NEWTON is not set 554# CONFIG_KEYBOARD_NEWTON is not set
557# CONFIG_KEYBOARD_STOWAWAY is not set 555# CONFIG_KEYBOARD_STOWAWAY is not set
558# CONFIG_KEYBOARD_MAPLE is not set 556CONFIG_KEYBOARD_MAPLE=y
559# CONFIG_KEYBOARD_SH_KEYSC is not set 557# CONFIG_KEYBOARD_SH_KEYSC is not set
560CONFIG_INPUT_MOUSE=y 558CONFIG_INPUT_MOUSE=y
561# CONFIG_MOUSE_PS2 is not set 559# CONFIG_MOUSE_PS2 is not set
diff --git a/arch/sh/include/asm/a.out.h b/arch/sh/include/asm/a.out.h
deleted file mode 100644
index 1f93130e179c..000000000000
--- a/arch/sh/include/asm/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
1#ifndef __ASM_SH_A_OUT_H
2#define __ASM_SH_A_OUT_H
3
4struct exec
5{
6 unsigned long a_info; /* Use macros N_MAGIC, etc for access */
7 unsigned a_text; /* length of text, in bytes */
8 unsigned a_data; /* length of data, in bytes */
9 unsigned a_bss; /* length of uninitialized data area for file, in bytes */
10 unsigned a_syms; /* length of symbol table data in file, in bytes */
11 unsigned a_entry; /* start address */
12 unsigned a_trsize; /* length of relocation info for text, in bytes */
13 unsigned a_drsize; /* length of relocation info for data, in bytes */
14};
15
16#define N_TRSIZE(a) ((a).a_trsize)
17#define N_DRSIZE(a) ((a).a_drsize)
18#define N_SYMSIZE(a) ((a).a_syms)
19
20#endif /* __ASM_SH_A_OUT_H */
diff --git a/arch/sh/include/asm/ptrace.h b/arch/sh/include/asm/ptrace.h
index 643ab5a7cf3b..b86aeabba61a 100644
--- a/arch/sh/include/asm/ptrace.h
+++ b/arch/sh/include/asm/ptrace.h
@@ -104,6 +104,15 @@ struct pt_dspregs {
104 104
105extern void show_regs(struct pt_regs *); 105extern void show_regs(struct pt_regs *);
106 106
107/*
108 * These are defined as per linux/ptrace.h.
109 */
110struct task_struct;
111
112#define arch_has_single_step() (1)
113extern void user_enable_single_step(struct task_struct *);
114extern void user_disable_single_step(struct task_struct *);
115
107#ifdef CONFIG_SH_DSP 116#ifdef CONFIG_SH_DSP
108#define task_pt_regs(task) \ 117#define task_pt_regs(task) \
109 ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ 118 ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
new file mode 100644
index 000000000000..3280ed3802ef
--- /dev/null
+++ b/arch/sh/include/asm/seccomp.h
@@ -0,0 +1,10 @@
1#ifndef __ASM_SECCOMP_H
2
3#include <linux/unistd.h>
4
5#define __NR_seccomp_read __NR_read
6#define __NR_seccomp_write __NR_write
7#define __NR_seccomp_exit __NR_exit
8#define __NR_seccomp_sigreturn __NR_rt_sigreturn
9
10#endif /* __ASM_SECCOMP_H */
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index eeb4c747119e..0a894cafb1dd 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -117,24 +117,45 @@ static inline struct thread_info *current_thread_info(void)
117#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ 117#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
118#define TIF_RESTORE_SIGMASK 3 /* restore signal mask in do_signal() */ 118#define TIF_RESTORE_SIGMASK 3 /* restore signal mask in do_signal() */
119#define TIF_SINGLESTEP 4 /* singlestepping active */ 119#define TIF_SINGLESTEP 4 /* singlestepping active */
120#define TIF_SYSCALL_AUDIT 5 120#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */
121#define TIF_SECCOMP 6 /* secure computing */
122#define TIF_NOTIFY_RESUME 7 /* callback before returning to user */
121#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ 123#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
122#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ 124#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */
123#define TIF_MEMDIE 18 125#define TIF_MEMDIE 18
124#define TIF_FREEZE 19 126#define TIF_FREEZE 19 /* Freezing for suspend */
125 127
126#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) 128#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
127#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) 129#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
128#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) 130#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
129#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) 131#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
130#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) 132#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
131#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) 133#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
132#define _TIF_USEDFPU (1<<TIF_USEDFPU) 134#define _TIF_SECCOMP (1 << TIF_SECCOMP)
133#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) 135#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
134#define _TIF_FREEZE (1<<TIF_FREEZE) 136#define _TIF_USEDFPU (1 << TIF_USEDFPU)
135 137#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
136#define _TIF_WORK_MASK 0x000000FE /* work to do on interrupt/exception return */ 138#define _TIF_FREEZE (1 << TIF_FREEZE)
137#define _TIF_ALLWORK_MASK 0x000000FF /* work to do on any return to u-space */ 139
140/*
141 * _TIF_ALLWORK_MASK and _TIF_WORK_MASK need to fit within a byte, or we
142 * blow the tst immediate size constraints and need to fix up
143 * arch/sh/kernel/entry-common.S.
144 */
145
146/* work to do in syscall trace */
147#define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
148 _TIF_SYSCALL_AUDIT | _TIF_SECCOMP)
149
150/* work to do on any return to u-space */
151#define _TIF_ALLWORK_MASK (_TIF_SYSCALL_TRACE | _TIF_SIGPENDING | \
152 _TIF_NEED_RESCHED | _TIF_SYSCALL_AUDIT | \
153 _TIF_SINGLESTEP | _TIF_RESTORE_SIGMASK | \
154 _TIF_NOTIFY_RESUME)
155
156/* work to do on interrupt/exception return */
157#define _TIF_WORK_MASK (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \
158 _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP))
138 159
139#endif /* __KERNEL__ */ 160#endif /* __KERNEL__ */
140 161
diff --git a/arch/sh/include/asm/tlb_64.h b/arch/sh/include/asm/tlb_64.h
index 0a96f3af69e3..ef0ae2a28f23 100644
--- a/arch/sh/include/asm/tlb_64.h
+++ b/arch/sh/include/asm/tlb_64.h
@@ -21,11 +21,9 @@
21#ifndef __ASSEMBLY__ 21#ifndef __ASSEMBLY__
22 22
23/** 23/**
24 * for_each_dtlb_entry 24 * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries
25 * 25 *
26 * @tlb: TLB entry 26 * @tlb: TLB entry
27 *
28 * Iterate over free (non-wired) DTLB entries
29 */ 27 */
30#define for_each_dtlb_entry(tlb) \ 28#define for_each_dtlb_entry(tlb) \
31 for (tlb = cpu_data->dtlb.first; \ 29 for (tlb = cpu_data->dtlb.first; \
@@ -33,11 +31,9 @@
33 tlb += cpu_data->dtlb.step) 31 tlb += cpu_data->dtlb.step)
34 32
35/** 33/**
36 * for_each_itlb_entry 34 * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries
37 * 35 *
38 * @tlb: TLB entry 36 * @tlb: TLB entry
39 *
40 * Iterate over free (non-wired) ITLB entries
41 */ 37 */
42#define for_each_itlb_entry(tlb) \ 38#define for_each_itlb_entry(tlb) \
43 for (tlb = cpu_data->itlb.first; \ 39 for (tlb = cpu_data->itlb.first; \
@@ -45,11 +41,9 @@
45 tlb += cpu_data->itlb.step) 41 tlb += cpu_data->itlb.step)
46 42
47/** 43/**
48 * __flush_tlb_slot 44 * __flush_tlb_slot - Flushes TLB slot @slot.
49 * 45 *
50 * @slot: Address of TLB slot. 46 * @slot: Address of TLB slot.
51 *
52 * Flushes TLB slot @slot.
53 */ 47 */
54static inline void __flush_tlb_slot(unsigned long long slot) 48static inline void __flush_tlb_slot(unsigned long long slot)
55{ 49{
diff --git a/arch/sh/include/cpu-sh2/cpu/cache.h b/arch/sh/include/cpu-sh2/cpu/cache.h
index 4e0b16500686..673515bc4135 100644
--- a/arch/sh/include/cpu-sh2/cpu/cache.h
+++ b/arch/sh/include/cpu-sh2/cpu/cache.h
@@ -21,11 +21,11 @@
21#define CCR 0xffffffec 21#define CCR 0xffffffec
22 22
23#define CCR_CACHE_CE 0x01 /* Cache enable */ 23#define CCR_CACHE_CE 0x01 /* Cache enable */
24#define CCR_CACHE_WT 0x06 /* CCR[bit1=1,bit2=1] */ 24#define CCR_CACHE_WT 0x02 /* CCR[bit1=1,bit2=1] */
25 /* 0x00000000-0x7fffffff: Write-through */ 25 /* 0x00000000-0x7fffffff: Write-through */
26 /* 0x80000000-0x9fffffff: Write-back */ 26 /* 0x80000000-0x9fffffff: Write-back */
27 /* 0xc0000000-0xdfffffff: Write-through */ 27 /* 0xc0000000-0xdfffffff: Write-through */
28#define CCR_CACHE_CB 0x00 /* CCR[bit1=0,bit2=0] */ 28#define CCR_CACHE_CB 0x04 /* CCR[bit1=0,bit2=0] */
29 /* 0x00000000-0x7fffffff: Write-back */ 29 /* 0x00000000-0x7fffffff: Write-back */
30 /* 0x80000000-0x9fffffff: Write-through */ 30 /* 0x80000000-0x9fffffff: Write-through */
31 /* 0xc0000000-0xdfffffff: Write-back */ 31 /* 0xc0000000-0xdfffffff: Write-back */
@@ -36,6 +36,8 @@
36 36
37#define CCR_CACHE_ENABLE CCR_CACHE_CE 37#define CCR_CACHE_ENABLE CCR_CACHE_CE
38#define CCR_CACHE_INVALIDATE CCR_CACHE_CF 38#define CCR_CACHE_INVALIDATE CCR_CACHE_CF
39#define CACHE_PHYSADDR_MASK 0x1ffffc00
40
39#endif 41#endif
40 42
41#endif /* __ASM_CPU_SH2_CACHE_H */ 43#endif /* __ASM_CPU_SH2_CACHE_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/addrspace.h b/arch/sh/include/cpu-sh2a/cpu/addrspace.h
new file mode 100644
index 000000000000..31eb4b58aa6d
--- /dev/null
+++ b/arch/sh/include/cpu-sh2a/cpu/addrspace.h
@@ -0,0 +1,10 @@
1#ifndef __ASM_SH_CPU_SH2A_ADDRSPACE_H
2#define __ASM_SH_CPU_SH2A_ADDRSPACE_H
3
4#define P0SEG 0x00000000
5#define P1SEG 0x00000000
6#define P2SEG 0x20000000
7#define P3SEG 0x40000000
8#define P4SEG 0x60000000
9
10#endif /* __ASM_SH_CPU_SH2A_ADDRSPACE_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/cache.h b/arch/sh/include/cpu-sh2a/cpu/cache.h
index afe228b3f493..defb0baa5a06 100644
--- a/arch/sh/include/cpu-sh2a/cpu/cache.h
+++ b/arch/sh/include/cpu-sh2a/cpu/cache.h
@@ -36,5 +36,8 @@
36 36
37#define CCR_CACHE_ENABLE (CCR_CACHE_OCE | CCR_CACHE_ICE) 37#define CCR_CACHE_ENABLE (CCR_CACHE_OCE | CCR_CACHE_ICE)
38#define CCR_CACHE_INVALIDATE (CCR_CACHE_OCI | CCR_CACHE_ICI) 38#define CCR_CACHE_INVALIDATE (CCR_CACHE_OCI | CCR_CACHE_ICI)
39#define CCR_ICACHE_INVALIDATE CCR_CACHE_ICI
40#define CCR_OCACHE_INVALIDATE CCR_CACHE_OCI
41#define CACHE_PHYSADDR_MASK 0x1ffffc00
39 42
40#endif /* __ASM_CPU_SH2A_CACHE_H */ 43#endif /* __ASM_CPU_SH2A_CACHE_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/cacheflush.h b/arch/sh/include/cpu-sh2a/cpu/cacheflush.h
new file mode 100644
index 000000000000..3d3b9205d2ac
--- /dev/null
+++ b/arch/sh/include/cpu-sh2a/cpu/cacheflush.h
@@ -0,0 +1,34 @@
1#ifndef __ASM_CPU_SH2A_CACHEFLUSH_H
2#define __ASM_CPU_SH2A_CACHEFLUSH_H
3
4/*
5 * Cache flushing:
6 *
7 * - flush_cache_all() flushes entire cache
8 * - flush_cache_mm(mm) flushes the specified mm context's cache lines
9 * - flush_cache_dup mm(mm) handles cache flushing when forking
10 * - flush_cache_page(mm, vmaddr, pfn) flushes a single page
11 * - flush_cache_range(vma, start, end) flushes a range of pages
12 *
13 * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
14 * - flush_icache_range(start, end) flushes(invalidates) a range for icache
15 * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
16 *
17 * Caches are indexed (effectively) by physical address on SH-2, so
18 * we don't need them.
19 */
20#define flush_cache_all() do { } while (0)
21#define flush_cache_mm(mm) do { } while (0)
22#define flush_cache_dup_mm(mm) do { } while (0)
23#define flush_cache_range(vma, start, end) do { } while (0)
24#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
25#define flush_dcache_page(page) do { } while (0)
26#define flush_dcache_mmap_lock(mapping) do { } while (0)
27#define flush_dcache_mmap_unlock(mapping) do { } while (0)
28void flush_icache_range(unsigned long start, unsigned long end);
29#define flush_icache_page(vma,pg) do { } while (0)
30#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
31#define flush_cache_sigtramp(vaddr) do { } while (0)
32
33#define p3_cache_init() do { } while (0)
34#endif /* __ASM_CPU_SH2A_CACHEFLUSH_H */
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index dcdf959a3d44..8a8a993f55ea 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -199,7 +199,7 @@ EXPORT_SYMBOL(sq_remap);
199 199
200/** 200/**
201 * sq_unmap - Unmap a Store Queue allocation 201 * sq_unmap - Unmap a Store Queue allocation
202 * @map: Pre-allocated Store Queue mapping. 202 * @vaddr: Pre-allocated Store Queue mapping.
203 * 203 *
204 * Unmaps the store queue allocation @map that was previously created by 204 * Unmaps the store queue allocation @map that was previously created by
205 * sq_remap(). Also frees up the pte that was previously inserted into 205 * sq_remap(). Also frees up the pte that was previously inserted into
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index ca08e7f26a3a..04c7da968146 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -987,11 +987,11 @@ work_resched:
987work_notifysig: 987work_notifysig:
988 gettr tr1, LINK 988 gettr tr1, LINK
989 989
990 movi do_signal, r6 990 movi do_notify_resume, r6
991 ptabs r6, tr0 991 ptabs r6, tr0
992 or SP, ZERO, r2 992 or SP, ZERO, r2
993 or ZERO, ZERO, r3 993 or r7, ZERO, r3
994 blink tr0, LINK /* Call do_signal(regs, 0), return here */ 994 blink tr0, LINK /* Call do_notify_resume(regs, current_thread_info->flags), return here */
995 995
996restore_all: 996restore_all:
997 /* Do prefetches */ 997 /* Do prefetches */
@@ -1300,18 +1300,20 @@ syscall_allowed:
1300 1300
1301 getcon KCR0, r2 1301 getcon KCR0, r2
1302 ld.l r2, TI_FLAGS, r4 1302 ld.l r2, TI_FLAGS, r4
1303 movi (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT), r6 1303 movi _TIF_WORK_SYSCALL_MASK, r6
1304 and r6, r4, r6 1304 and r6, r4, r6
1305 beq/l r6, ZERO, tr0 1305 beq/l r6, ZERO, tr0
1306 1306
1307 /* Trace it by calling syscall_trace before and after */ 1307 /* Trace it by calling syscall_trace before and after */
1308 movi syscall_trace, r4 1308 movi do_syscall_trace_enter, r4
1309 or SP, ZERO, r2 1309 or SP, ZERO, r2
1310 or ZERO, ZERO, r3
1311 ptabs r4, tr0 1310 ptabs r4, tr0
1312 blink tr0, LINK 1311 blink tr0, LINK
1313 1312
1314 /* Reload syscall number as r5 is trashed by syscall_trace */ 1313 /* Save the retval */
1314 st.q SP, FRAME_R(2), r2
1315
1316 /* Reload syscall number as r5 is trashed by do_syscall_trace_enter */
1315 ld.q SP, FRAME_S(FSYSCALL_ID), r5 1317 ld.q SP, FRAME_S(FSYSCALL_ID), r5
1316 andi r5, 0x1ff, r5 1318 andi r5, 0x1ff, r5
1317 1319
@@ -1343,9 +1345,8 @@ syscall_ret_trace:
1343 /* We get back here only if under trace */ 1345 /* We get back here only if under trace */
1344 st.q SP, FRAME_R(9), r2 /* Save return value */ 1346 st.q SP, FRAME_R(9), r2 /* Save return value */
1345 1347
1346 movi syscall_trace, LINK 1348 movi do_syscall_trace_leave, LINK
1347 or SP, ZERO, r2 1349 or SP, ZERO, r2
1348 movi 1, r3
1349 ptabs LINK, tr0 1350 ptabs LINK, tr0
1350 blink tr0, LINK 1351 blink tr0, LINK
1351 1352
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index 5e0dd1933847..0bc17def55a7 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -202,7 +202,7 @@ work_resched:
202syscall_exit_work: 202syscall_exit_work:
203 ! r0: current_thread_info->flags 203 ! r0: current_thread_info->flags
204 ! r8: current_thread_info 204 ! r8: current_thread_info
205 tst #_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT, r0 205 tst #_TIF_WORK_SYSCALL_MASK, r0
206 bt/s work_pending 206 bt/s work_pending
207 tst #_TIF_NEED_RESCHED, r0 207 tst #_TIF_NEED_RESCHED, r0
208#ifdef CONFIG_TRACE_IRQFLAGS 208#ifdef CONFIG_TRACE_IRQFLAGS
@@ -211,10 +211,8 @@ syscall_exit_work:
211 nop 211 nop
212#endif 212#endif
213 sti 213 sti
214 ! XXX setup arguments...
215 mov r15, r4 214 mov r15, r4
216 mov #1, r5 215 mov.l 8f, r0 ! do_syscall_trace_leave
217 mov.l 4f, r0 ! do_syscall_trace
218 jsr @r0 216 jsr @r0
219 nop 217 nop
220 bra resume_userspace 218 bra resume_userspace
@@ -223,12 +221,11 @@ syscall_exit_work:
223 .align 2 221 .align 2
224syscall_trace_entry: 222syscall_trace_entry:
225 ! Yes it is traced. 223 ! Yes it is traced.
226 ! XXX setup arguments...
227 mov r15, r4 224 mov r15, r4
228 mov #0, r5 225 mov.l 7f, r11 ! Call do_syscall_trace_enter which notifies
229 mov.l 4f, r11 ! Call do_syscall_trace which notifies
230 jsr @r11 ! superior (will chomp R[0-7]) 226 jsr @r11 ! superior (will chomp R[0-7])
231 nop 227 nop
228 mov.l r0, @(OFF_R0,r15) ! Save return value
232 ! Reload R0-R4 from kernel stack, where the 229 ! Reload R0-R4 from kernel stack, where the
233 ! parent may have modified them using 230 ! parent may have modified them using
234 ! ptrace(POKEUSR). (Note that R0-R2 are 231 ! ptrace(POKEUSR). (Note that R0-R2 are
@@ -351,7 +348,7 @@ ENTRY(system_call)
351 ! 348 !
352 get_current_thread_info r8, r10 349 get_current_thread_info r8, r10
353 mov.l @(TI_FLAGS,r8), r8 350 mov.l @(TI_FLAGS,r8), r8
354 mov #(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT), r10 351 mov #_TIF_WORK_SYSCALL_MASK, r10
355 tst r10, r8 352 tst r10, r8
356 bf syscall_trace_entry 353 bf syscall_trace_entry
357 ! 354 !
@@ -389,8 +386,9 @@ syscall_exit:
389#endif 386#endif
3902: .long NR_syscalls 3872: .long NR_syscalls
3913: .long sys_call_table 3883: .long sys_call_table
3924: .long do_syscall_trace
393#ifdef CONFIG_TRACE_IRQFLAGS 389#ifdef CONFIG_TRACE_IRQFLAGS
3945: .long trace_hardirqs_on 3905: .long trace_hardirqs_on
3956: .long trace_hardirqs_off 3916: .long trace_hardirqs_off
396#endif 392#endif
3937: .long do_syscall_trace_enter
3948: .long do_syscall_trace_leave
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index ec1eadce4aaa..4703dff174d5 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -13,6 +13,7 @@
13#include <linux/kexec.h> 13#include <linux/kexec.h>
14#include <linux/delay.h> 14#include <linux/delay.h>
15#include <linux/reboot.h> 15#include <linux/reboot.h>
16#include <linux/numa.h>
16#include <asm/pgtable.h> 17#include <asm/pgtable.h>
17#include <asm/pgalloc.h> 18#include <asm/pgalloc.h>
18#include <asm/mmu_context.h> 19#include <asm/mmu_context.h>
@@ -104,3 +105,10 @@ void machine_kexec(struct kimage *image)
104 (*rnk)(page_list, reboot_code_buffer, image->start, vbr_reg); 105 (*rnk)(page_list, reboot_code_buffer, image->start, vbr_reg);
105} 106}
106 107
108void arch_crash_save_vmcoreinfo(void)
109{
110#ifdef CONFIG_NUMA
111 VMCOREINFO_SYMBOL(node_data);
112 VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
113#endif
114}
diff --git a/arch/sh/kernel/module.c b/arch/sh/kernel/module.c
index 5482e65375a9..c43081039dd5 100644
--- a/arch/sh/kernel/module.c
+++ b/arch/sh/kernel/module.c
@@ -27,6 +27,7 @@
27#include <linux/moduleloader.h> 27#include <linux/moduleloader.h>
28#include <linux/elf.h> 28#include <linux/elf.h>
29#include <linux/vmalloc.h> 29#include <linux/vmalloc.h>
30#include <linux/bug.h>
30#include <linux/fs.h> 31#include <linux/fs.h>
31#include <linux/string.h> 32#include <linux/string.h>
32#include <linux/kernel.h> 33#include <linux/kernel.h>
@@ -36,7 +37,8 @@ void *module_alloc(unsigned long size)
36{ 37{
37 if (size == 0) 38 if (size == 0)
38 return NULL; 39 return NULL;
39 return vmalloc(size); 40
41 return vmalloc_exec(size);
40} 42}
41 43
42 44
@@ -145,9 +147,10 @@ int module_finalize(const Elf_Ehdr *hdr,
145 const Elf_Shdr *sechdrs, 147 const Elf_Shdr *sechdrs,
146 struct module *me) 148 struct module *me)
147{ 149{
148 return 0; 150 return module_bug_finalize(hdr, sechdrs, me);
149} 151}
150 152
151void module_arch_cleanup(struct module *mod) 153void module_arch_cleanup(struct module *mod)
152{ 154{
155 module_bug_cleanup(mod);
153} 156}
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 2bc72def5cf8..035cb300d3dc 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -20,6 +20,8 @@
20#include <linux/signal.h> 20#include <linux/signal.h>
21#include <linux/io.h> 21#include <linux/io.h>
22#include <linux/audit.h> 22#include <linux/audit.h>
23#include <linux/seccomp.h>
24#include <linux/tracehook.h>
23#include <asm/uaccess.h> 25#include <asm/uaccess.h>
24#include <asm/pgtable.h> 26#include <asm/pgtable.h>
25#include <asm/system.h> 27#include <asm/system.h>
@@ -57,7 +59,23 @@ static inline int put_stack_long(struct task_struct *task, int offset,
57 return 0; 59 return 0;
58} 60}
59 61
60static void ptrace_disable_singlestep(struct task_struct *child) 62void user_enable_single_step(struct task_struct *child)
63{
64 struct pt_regs *regs = task_pt_regs(child);
65 long pc;
66
67 pc = get_stack_long(child, (long)&regs->pc);
68
69 /* Next scheduling will set up UBC */
70 if (child->thread.ubc_pc == 0)
71 ubc_usercnt += 1;
72
73 child->thread.ubc_pc = pc;
74
75 set_tsk_thread_flag(child, TIF_SINGLESTEP);
76}
77
78void user_disable_single_step(struct task_struct *child)
61{ 79{
62 clear_tsk_thread_flag(child, TIF_SINGLESTEP); 80 clear_tsk_thread_flag(child, TIF_SINGLESTEP);
63 81
@@ -81,7 +99,7 @@ static void ptrace_disable_singlestep(struct task_struct *child)
81 */ 99 */
82void ptrace_disable(struct task_struct *child) 100void ptrace_disable(struct task_struct *child)
83{ 101{
84 ptrace_disable_singlestep(child); 102 user_disable_single_step(child);
85} 103}
86 104
87long arch_ptrace(struct task_struct *child, long request, long addr, long data) 105long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -90,12 +108,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
90 int ret; 108 int ret;
91 109
92 switch (request) { 110 switch (request) {
93 /* when I and D space are separate, these will need to be fixed. */
94 case PTRACE_PEEKTEXT: /* read word at location addr. */
95 case PTRACE_PEEKDATA:
96 ret = generic_ptrace_peekdata(child, addr, data);
97 break;
98
99 /* read the word at location addr in the USER area. */ 111 /* read the word at location addr in the USER area. */
100 case PTRACE_PEEKUSR: { 112 case PTRACE_PEEKUSR: {
101 unsigned long tmp; 113 unsigned long tmp;
@@ -125,12 +137,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
125 break; 137 break;
126 } 138 }
127 139
128 /* when I and D space are separate, this will have to be fixed. */
129 case PTRACE_POKETEXT: /* write the word at location addr. */
130 case PTRACE_POKEDATA:
131 ret = generic_ptrace_pokedata(child, addr, data);
132 break;
133
134 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ 140 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
135 ret = -EIO; 141 ret = -EIO;
136 if ((addr & 3) || addr < 0 || 142 if ((addr & 3) || addr < 0 ||
@@ -151,67 +157,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
151 } 157 }
152 break; 158 break;
153 159
154 case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
155 case PTRACE_CONT: { /* restart after signal. */
156 ret = -EIO;
157 if (!valid_signal(data))
158 break;
159 if (request == PTRACE_SYSCALL)
160 set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
161 else
162 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
163
164 ptrace_disable_singlestep(child);
165
166 child->exit_code = data;
167 wake_up_process(child);
168 ret = 0;
169 break;
170 }
171
172/*
173 * make the child exit. Best I can do is send it a sigkill.
174 * perhaps it should be put in the status that it wants to
175 * exit.
176 */
177 case PTRACE_KILL: {
178 ret = 0;
179 if (child->exit_state == EXIT_ZOMBIE) /* already dead */
180 break;
181 ptrace_disable_singlestep(child);
182 child->exit_code = SIGKILL;
183 wake_up_process(child);
184 break;
185 }
186
187 case PTRACE_SINGLESTEP: { /* set the trap flag. */
188 long pc;
189 struct pt_regs *regs = NULL;
190
191 ret = -EIO;
192 if (!valid_signal(data))
193 break;
194 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
195 if ((child->ptrace & PT_DTRACE) == 0) {
196 /* Spurious delayed TF traps may occur */
197 child->ptrace |= PT_DTRACE;
198 }
199
200 pc = get_stack_long(child, (long)&regs->pc);
201
202 /* Next scheduling will set up UBC */
203 if (child->thread.ubc_pc == 0)
204 ubc_usercnt += 1;
205 child->thread.ubc_pc = pc;
206
207 set_tsk_thread_flag(child, TIF_SINGLESTEP);
208 child->exit_code = data;
209 /* give it a chance to run. */
210 wake_up_process(child);
211 ret = 0;
212 break;
213 }
214
215#ifdef CONFIG_SH_DSP 160#ifdef CONFIG_SH_DSP
216 case PTRACE_GETDSPREGS: { 161 case PTRACE_GETDSPREGS: {
217 unsigned long dp; 162 unsigned long dp;
@@ -272,39 +217,49 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
272 return ret; 217 return ret;
273} 218}
274 219
275asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit) 220static inline int audit_arch(void)
276{ 221{
277 struct task_struct *tsk = current; 222 int arch = EM_SH;
278 223
279 if (unlikely(current->audit_context) && entryexit) 224#ifdef CONFIG_CPU_LITTLE_ENDIAN
280 audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]), 225 arch |= __AUDIT_ARCH_LE;
281 regs->regs[0]); 226#endif
282 227
283 if (!test_thread_flag(TIF_SYSCALL_TRACE) && 228 return arch;
284 !test_thread_flag(TIF_SINGLESTEP)) 229}
285 goto out;
286 if (!(tsk->ptrace & PT_PTRACED))
287 goto out;
288 230
289 /* the 0x80 provides a way for the tracing parent to distinguish 231asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
290 between a syscall stop and SIGTRAP delivery */ 232{
291 ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) && 233 long ret = 0;
292 !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0));
293 234
294 /* 235 secure_computing(regs->regs[0]);
295 * this isn't the same as continuing with a signal, but it will do 236
296 * for normal use. strace only continues with a signal if the 237 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
297 * stopping signal is not SIGTRAP. -brl 238 tracehook_report_syscall_entry(regs))
298 */ 239 /*
299 if (tsk->exit_code) { 240 * Tracing decided this syscall should not happen.
300 send_sig(tsk->exit_code, tsk, 1); 241 * We'll return a bogus call number to get an ENOSYS
301 tsk->exit_code = 0; 242 * error, but leave the original number in regs->regs[0].
302 } 243 */
244 ret = -1L;
303 245
304out: 246 if (unlikely(current->audit_context))
305 if (unlikely(current->audit_context) && !entryexit) 247 audit_syscall_entry(audit_arch(), regs->regs[3],
306 audit_syscall_entry(AUDIT_ARCH_SH, regs->regs[3],
307 regs->regs[4], regs->regs[5], 248 regs->regs[4], regs->regs[5],
308 regs->regs[6], regs->regs[7]); 249 regs->regs[6], regs->regs[7]);
309 250
251 return ret ?: regs->regs[0];
252}
253
254asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
255{
256 int step;
257
258 if (unlikely(current->audit_context))
259 audit_syscall_exit(AUDITSC_RESULT(regs->regs[0]),
260 regs->regs[0]);
261
262 step = test_thread_flag(TIF_SINGLESTEP);
263 if (step || test_thread_flag(TIF_SYSCALL_TRACE))
264 tracehook_report_syscall_exit(regs, step);
310} 265}
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index d453c47dc522..5922edd416db 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -27,6 +27,8 @@
27#include <linux/signal.h> 27#include <linux/signal.h>
28#include <linux/syscalls.h> 28#include <linux/syscalls.h>
29#include <linux/audit.h> 29#include <linux/audit.h>
30#include <linux/seccomp.h>
31#include <linux/tracehook.h>
30#include <asm/io.h> 32#include <asm/io.h>
31#include <asm/uaccess.h> 33#include <asm/uaccess.h>
32#include <asm/pgtable.h> 34#include <asm/pgtable.h>
@@ -120,18 +122,23 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
120 return 0; 122 return 0;
121} 123}
122 124
125void user_enable_single_step(struct task_struct *child)
126{
127 struct pt_regs *regs = child->thread.uregs;
128
129 regs->sr |= SR_SSTEP; /* auto-resetting upon exception */
130}
131
132void user_disable_single_step(struct task_struct *child)
133{
134 regs->sr &= ~SR_SSTEP;
135}
123 136
124long arch_ptrace(struct task_struct *child, long request, long addr, long data) 137long arch_ptrace(struct task_struct *child, long request, long addr, long data)
125{ 138{
126 int ret; 139 int ret;
127 140
128 switch (request) { 141 switch (request) {
129 /* when I and D space are separate, these will need to be fixed. */
130 case PTRACE_PEEKTEXT: /* read word at location addr. */
131 case PTRACE_PEEKDATA:
132 ret = generic_ptrace_peekdata(child, addr, data);
133 break;
134
135 /* read the word at location addr in the USER area. */ 142 /* read the word at location addr in the USER area. */
136 case PTRACE_PEEKUSR: { 143 case PTRACE_PEEKUSR: {
137 unsigned long tmp; 144 unsigned long tmp;
@@ -154,12 +161,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
154 break; 161 break;
155 } 162 }
156 163
157 /* when I and D space are separate, this will have to be fixed. */
158 case PTRACE_POKETEXT: /* write the word at location addr. */
159 case PTRACE_POKEDATA:
160 ret = generic_ptrace_pokedata(child, addr, data);
161 break;
162
163 case PTRACE_POKEUSR: 164 case PTRACE_POKEUSR:
164 /* write the word at location addr in the USER area. We must 165 /* write the word at location addr in the USER area. We must
165 disallow any changes to certain SR bits or u_fpvalid, since 166 disallow any changes to certain SR bits or u_fpvalid, since
@@ -191,58 +192,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
191 } 192 }
192 break; 193 break;
193 194
194 case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
195 case PTRACE_CONT: { /* restart after signal. */
196 ret = -EIO;
197 if (!valid_signal(data))
198 break;
199 if (request == PTRACE_SYSCALL)
200 set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
201 else
202 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
203 child->exit_code = data;
204 wake_up_process(child);
205 ret = 0;
206 break;
207 }
208
209/*
210 * make the child exit. Best I can do is send it a sigkill.
211 * perhaps it should be put in the status that it wants to
212 * exit.
213 */
214 case PTRACE_KILL: {
215 ret = 0;
216 if (child->exit_state == EXIT_ZOMBIE) /* already dead */
217 break;
218 child->exit_code = SIGKILL;
219 wake_up_process(child);
220 break;
221 }
222
223 case PTRACE_SINGLESTEP: { /* set the trap flag. */
224 struct pt_regs *regs;
225
226 ret = -EIO;
227 if (!valid_signal(data))
228 break;
229 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
230 if ((child->ptrace & PT_DTRACE) == 0) {
231 /* Spurious delayed TF traps may occur */
232 child->ptrace |= PT_DTRACE;
233 }
234
235 regs = child->thread.uregs;
236
237 regs->sr |= SR_SSTEP; /* auto-resetting upon exception */
238
239 child->exit_code = data;
240 /* give it a chance to run. */
241 wake_up_process(child);
242 ret = 0;
243 break;
244 }
245
246 default: 195 default:
247 ret = ptrace_request(child, request, addr, data); 196 ret = ptrace_request(child, request, addr, data);
248 break; 197 break;
@@ -273,38 +222,51 @@ asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
273 return sys_ptrace(request, pid, addr, data); 222 return sys_ptrace(request, pid, addr, data);
274} 223}
275 224
276asmlinkage void syscall_trace(struct pt_regs *regs, int entryexit) 225static inline int audit_arch(void)
277{ 226{
278 struct task_struct *tsk = current; 227 int arch = EM_SH;
279 228
280 if (unlikely(current->audit_context) && entryexit) 229#ifdef CONFIG_64BIT
281 audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]), 230 arch |= __AUDIT_ARCH_64BIT;
282 regs->regs[9]); 231#endif
232#ifdef CONFIG_CPU_LITTLE_ENDIAN
233 arch |= __AUDIT_ARCH_LE;
234#endif
283 235
284 if (!test_thread_flag(TIF_SYSCALL_TRACE) && 236 return arch;
285 !test_thread_flag(TIF_SINGLESTEP)) 237}
286 goto out;
287 if (!(tsk->ptrace & PT_PTRACED))
288 goto out;
289
290 ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) &&
291 !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0));
292
293 /*
294 * this isn't the same as continuing with a signal, but it will do
295 * for normal use. strace only continues with a signal if the
296 * stopping signal is not SIGTRAP. -brl
297 */
298 if (tsk->exit_code) {
299 send_sig(tsk->exit_code, tsk, 1);
300 tsk->exit_code = 0;
301 }
302 238
303out: 239asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
304 if (unlikely(current->audit_context) && !entryexit) 240{
305 audit_syscall_entry(AUDIT_ARCH_SH, regs->regs[1], 241 long long ret = 0;
242
243 secure_computing(regs->regs[9]);
244
245 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
246 tracehook_report_syscall_entry(regs))
247 /*
248 * Tracing decided this syscall should not happen.
249 * We'll return a bogus call number to get an ENOSYS
250 * error, but leave the original number in regs->regs[0].
251 */
252 ret = -1LL;
253
254 if (unlikely(current->audit_context))
255 audit_syscall_entry(audit_arch(), regs->regs[1],
306 regs->regs[2], regs->regs[3], 256 regs->regs[2], regs->regs[3],
307 regs->regs[4], regs->regs[5]); 257 regs->regs[4], regs->regs[5]);
258
259 return ret ?: regs->regs[9];
260}
261
262asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
263{
264 if (unlikely(current->audit_context))
265 audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]),
266 regs->regs[9]);
267
268 if (test_thread_flag(TIF_SYSCALL_TRACE))
269 tracehook_report_syscall_exit(regs, 0);
308} 270}
309 271
310/* Called with interrupts disabled */ 272/* Called with interrupts disabled */
@@ -338,5 +300,5 @@ asmlinkage void do_software_break_point(unsigned long long vec,
338 */ 300 */
339void ptrace_disable(struct task_struct *child) 301void ptrace_disable(struct task_struct *child)
340{ 302{
341 /* nothing to do.. */ 303 user_disable_single_step(child);
342} 304}
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 6339d0c95715..a35207655e7b 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -25,6 +25,7 @@
25#include <linux/smp.h> 25#include <linux/smp.h>
26#include <linux/err.h> 26#include <linux/err.h>
27#include <linux/debugfs.h> 27#include <linux/debugfs.h>
28#include <linux/crash_dump.h>
28#include <asm/uaccess.h> 29#include <asm/uaccess.h>
29#include <asm/io.h> 30#include <asm/io.h>
30#include <asm/page.h> 31#include <asm/page.h>
@@ -286,6 +287,25 @@ static void __init setup_memory(void)
286extern void __init setup_memory(void); 287extern void __init setup_memory(void);
287#endif 288#endif
288 289
290/*
291 * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
292 * is_kdump_kernel() to determine if we are booting after a panic. Hence
293 * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
294 */
295#ifdef CONFIG_CRASH_DUMP
296/* elfcorehdr= specifies the location of elf core header
297 * stored by the crashed kernel.
298 */
299static int __init parse_elfcorehdr(char *arg)
300{
301 if (!arg)
302 return -EINVAL;
303 elfcorehdr_addr = memparse(arg, &arg);
304 return 0;
305}
306early_param("elfcorehdr", parse_elfcorehdr);
307#endif
308
289void __init setup_arch(char **cmdline_p) 309void __init setup_arch(char **cmdline_p)
290{ 310{
291 enable_mmu(); 311 enable_mmu();
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 4bbbde895a53..51689d29ad45 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -24,6 +24,7 @@
24#include <linux/binfmts.h> 24#include <linux/binfmts.h>
25#include <linux/freezer.h> 25#include <linux/freezer.h>
26#include <linux/io.h> 26#include <linux/io.h>
27#include <linux/tracehook.h>
27#include <asm/system.h> 28#include <asm/system.h>
28#include <asm/ucontext.h> 29#include <asm/ucontext.h>
29#include <asm/uaccess.h> 30#include <asm/uaccess.h>
@@ -507,14 +508,13 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
507 switch (regs->regs[0]) { 508 switch (regs->regs[0]) {
508 case -ERESTART_RESTARTBLOCK: 509 case -ERESTART_RESTARTBLOCK:
509 case -ERESTARTNOHAND: 510 case -ERESTARTNOHAND:
511 no_system_call_restart:
510 regs->regs[0] = -EINTR; 512 regs->regs[0] = -EINTR;
511 break; 513 break;
512 514
513 case -ERESTARTSYS: 515 case -ERESTARTSYS:
514 if (!(ka->sa.sa_flags & SA_RESTART)) { 516 if (!(ka->sa.sa_flags & SA_RESTART))
515 regs->regs[0] = -EINTR; 517 goto no_system_call_restart;
516 break;
517 }
518 /* fallthrough */ 518 /* fallthrough */
519 case -ERESTARTNOINTR: 519 case -ERESTARTNOINTR:
520 regs->regs[0] = save_r0; 520 regs->regs[0] = save_r0;
@@ -589,12 +589,15 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
589 * clear the TIF_RESTORE_SIGMASK flag */ 589 * clear the TIF_RESTORE_SIGMASK flag */
590 if (test_thread_flag(TIF_RESTORE_SIGMASK)) 590 if (test_thread_flag(TIF_RESTORE_SIGMASK))
591 clear_thread_flag(TIF_RESTORE_SIGMASK); 591 clear_thread_flag(TIF_RESTORE_SIGMASK);
592
593 tracehook_signal_handler(signr, &info, &ka, regs,
594 test_thread_flag(TIF_SINGLESTEP));
592 } 595 }
593 596
594 return; 597 return;
595 } 598 }
596 599
597 no_signal: 600no_signal:
598 /* Did we come from a system call? */ 601 /* Did we come from a system call? */
599 if (regs->tra >= 0) { 602 if (regs->tra >= 0) {
600 /* Restart the system call - no handlers present */ 603 /* Restart the system call - no handlers present */
@@ -618,9 +621,14 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
618} 621}
619 622
620asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0, 623asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
621 __u32 thread_info_flags) 624 unsigned long thread_info_flags)
622{ 625{
623 /* deal with pending signal delivery */ 626 /* deal with pending signal delivery */
624 if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) 627 if (thread_info_flags & _TIF_SIGPENDING)
625 do_signal(regs, save_r0); 628 do_signal(regs, save_r0);
629
630 if (thread_info_flags & _TIF_NOTIFY_RESUME) {
631 clear_thread_flag(TIF_NOTIFY_RESUME);
632 tracehook_notify_resume(regs);
633 }
626} 634}
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 552eb810cd85..1d62dfef77f1 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -22,6 +22,7 @@
22#include <linux/ptrace.h> 22#include <linux/ptrace.h>
23#include <linux/unistd.h> 23#include <linux/unistd.h>
24#include <linux/stddef.h> 24#include <linux/stddef.h>
25#include <linux/tracehook.h>
25#include <asm/ucontext.h> 26#include <asm/ucontext.h>
26#include <asm/uaccess.h> 27#include <asm/uaccess.h>
27#include <asm/pgtable.h> 28#include <asm/pgtable.h>
@@ -42,7 +43,84 @@
42 43
43#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) 44#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
44 45
45asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset); 46/*
47 * Note that 'init' is a special process: it doesn't get signals it doesn't
48 * want to handle. Thus you cannot kill init even with a SIGKILL even by
49 * mistake.
50 *
51 * Note that we go through the signals twice: once to check the signals that
52 * the kernel can handle, and then we build all the user-level signal handling
53 * stack-frames in one go after that.
54 */
55static int do_signal(struct pt_regs *regs, sigset_t *oldset)
56{
57 siginfo_t info;
58 int signr;
59 struct k_sigaction ka;
60
61 /*
62 * We want the common case to go fast, which
63 * is why we may in certain cases get here from
64 * kernel mode. Just return without doing anything
65 * if so.
66 */
67 if (!user_mode(regs))
68 return 1;
69
70 if (try_to_freeze())
71 goto no_signal;
72
73 if (test_thread_flag(TIF_RESTORE_SIGMASK))
74 oldset = &current->saved_sigmask;
75 else if (!oldset)
76 oldset = &current->blocked;
77
78 signr = get_signal_to_deliver(&info, &ka, regs, 0);
79
80 if (signr > 0) {
81 /* Whee! Actually deliver the signal. */
82 handle_signal(signr, &info, &ka, oldset, regs);
83
84 /*
85 * If a signal was successfully delivered, the saved sigmask
86 * is in its frame, and we can clear the TIF_RESTORE_SIGMASK
87 * flag.
88 */
89 if (test_thread_flag(TIF_RESTORE_SIGMASK))
90 clear_thread_flag(TIF_RESTORE_SIGMASK);
91
92 tracehook_signal_handler(signr, &info, &ka, regs, 0);
93 return 1;
94 }
95
96no_signal:
97 /* Did we come from a system call? */
98 if (regs->syscall_nr >= 0) {
99 /* Restart the system call - no handlers present */
100 switch (regs->regs[REG_RET]) {
101 case -ERESTARTNOHAND:
102 case -ERESTARTSYS:
103 case -ERESTARTNOINTR:
104 /* Decode Syscall # */
105 regs->regs[REG_RET] = regs->syscall_nr;
106 regs->pc -= 4;
107 break;
108
109 case -ERESTART_RESTARTBLOCK:
110 regs->regs[REG_RET] = __NR_restart_syscall;
111 regs->pc -= 4;
112 break;
113 }
114 }
115
116 /* No signal to deliver -- put the saved sigmask back */
117 if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
118 clear_thread_flag(TIF_RESTORE_SIGMASK);
119 sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
120 }
121
122 return 0;
123}
46 124
47/* 125/*
48 * Atomically swap in the new signal mask, and wait for a signal. 126 * Atomically swap in the new signal mask, and wait for a signal.
@@ -643,14 +721,13 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
643 switch (regs->regs[REG_RET]) { 721 switch (regs->regs[REG_RET]) {
644 case -ERESTART_RESTARTBLOCK: 722 case -ERESTART_RESTARTBLOCK:
645 case -ERESTARTNOHAND: 723 case -ERESTARTNOHAND:
724 no_system_call_restart:
646 regs->regs[REG_RET] = -EINTR; 725 regs->regs[REG_RET] = -EINTR;
647 break; 726 break;
648 727
649 case -ERESTARTSYS: 728 case -ERESTARTSYS:
650 if (!(ka->sa.sa_flags & SA_RESTART)) { 729 if (!(ka->sa.sa_flags & SA_RESTART))
651 regs->regs[REG_RET] = -EINTR; 730 goto no_system_call_restart;
652 break;
653 }
654 /* fallthrough */ 731 /* fallthrough */
655 case -ERESTARTNOINTR: 732 case -ERESTARTNOINTR:
656 /* Decode syscall # */ 733 /* Decode syscall # */
@@ -673,80 +750,13 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
673 spin_unlock_irq(&current->sighand->siglock); 750 spin_unlock_irq(&current->sighand->siglock);
674} 751}
675 752
676/* 753asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
677 * Note that 'init' is a special process: it doesn't get signals it doesn't
678 * want to handle. Thus you cannot kill init even with a SIGKILL even by
679 * mistake.
680 *
681 * Note that we go through the signals twice: once to check the signals that
682 * the kernel can handle, and then we build all the user-level signal handling
683 * stack-frames in one go after that.
684 */
685int do_signal(struct pt_regs *regs, sigset_t *oldset)
686{ 754{
687 siginfo_t info; 755 if (thread_info_flags & _TIF_SIGPENDING)
688 int signr; 756 do_signal(regs, 0);
689 struct k_sigaction ka;
690
691 /*
692 * We want the common case to go fast, which
693 * is why we may in certain cases get here from
694 * kernel mode. Just return without doing anything
695 * if so.
696 */
697 if (!user_mode(regs))
698 return 1;
699
700 if (try_to_freeze())
701 goto no_signal;
702
703 if (test_thread_flag(TIF_RESTORE_SIGMASK))
704 oldset = &current->saved_sigmask;
705 else if (!oldset)
706 oldset = &current->blocked;
707
708 signr = get_signal_to_deliver(&info, &ka, regs, 0);
709
710 if (signr > 0) {
711 /* Whee! Actually deliver the signal. */
712 handle_signal(signr, &info, &ka, oldset, regs);
713 757
714 /* 758 if (thread_info_flags & _TIF_NOTIFY_RESUME) {
715 * If a signal was successfully delivered, the saved sigmask 759 clear_thread_flag(TIF_NOTIFY_RESUME);
716 * is in its frame, and we can clear the TIF_RESTORE_SIGMASK 760 tracehook_notify_resume(regs);
717 * flag.
718 */
719 if (test_thread_flag(TIF_RESTORE_SIGMASK))
720 clear_thread_flag(TIF_RESTORE_SIGMASK);
721
722 return 1;
723 } 761 }
724
725no_signal:
726 /* Did we come from a system call? */
727 if (regs->syscall_nr >= 0) {
728 /* Restart the system call - no handlers present */
729 switch (regs->regs[REG_RET]) {
730 case -ERESTARTNOHAND:
731 case -ERESTARTSYS:
732 case -ERESTARTNOINTR:
733 /* Decode Syscall # */
734 regs->regs[REG_RET] = regs->syscall_nr;
735 regs->pc -= 4;
736 break;
737
738 case -ERESTART_RESTARTBLOCK:
739 regs->regs[REG_RET] = __NR_restart_syscall;
740 regs->pc -= 4;
741 break;
742 }
743 }
744
745 /* No signal to deliver -- put the saved sigmask back */
746 if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
747 clear_thread_flag(TIF_RESTORE_SIGMASK);
748 sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
749 }
750
751 return 0;
752} 762}
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 56d0a7daa34b..9c131cac91a4 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -237,7 +237,6 @@ choice
237 237
238config CACHE_WRITEBACK 238config CACHE_WRITEBACK
239 bool "Write-back" 239 bool "Write-back"
240 depends on CPU_SH2A || CPU_SH3 || CPU_SH4 || CPU_SH5
241 240
242config CACHE_WRITETHROUGH 241config CACHE_WRITETHROUGH
243 bool "Write-through" 242 bool "Write-through"
diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index e295db60b91b..70e0906023cc 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -5,12 +5,15 @@
5obj-y := init.o extable_32.o consistent.o 5obj-y := init.o extable_32.o consistent.o
6 6
7ifndef CONFIG_CACHE_OFF 7ifndef CONFIG_CACHE_OFF
8obj-$(CONFIG_CPU_SH2) += cache-sh2.o 8cache-$(CONFIG_CPU_SH2) := cache-sh2.o
9obj-$(CONFIG_CPU_SH3) += cache-sh3.o 9cache-$(CONFIG_CPU_SH2A) := cache-sh2a.o
10obj-$(CONFIG_CPU_SH4) += cache-sh4.o 10cache-$(CONFIG_CPU_SH3) := cache-sh3.o
11obj-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o 11cache-$(CONFIG_CPU_SH4) := cache-sh4.o
12cache-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o
12endif 13endif
13 14
15obj-y += $(cache-y)
16
14mmu-y := tlb-nommu.o pg-nommu.o 17mmu-y := tlb-nommu.o pg-nommu.o
15mmu-$(CONFIG_MMU) := fault_32.o tlbflush_32.o ioremap_32.o 18mmu-$(CONFIG_MMU) := fault_32.o tlbflush_32.o ioremap_32.o
16 19
diff --git a/arch/sh/mm/cache-sh2.c b/arch/sh/mm/cache-sh2.c
index 6614033f6be9..c4e80d2b764b 100644
--- a/arch/sh/mm/cache-sh2.c
+++ b/arch/sh/mm/cache-sh2.c
@@ -2,6 +2,7 @@
2 * arch/sh/mm/cache-sh2.c 2 * arch/sh/mm/cache-sh2.c
3 * 3 *
4 * Copyright (C) 2002 Paul Mundt 4 * Copyright (C) 2002 Paul Mundt
5 * Copyright (C) 2008 Yoshinori Sato
5 * 6 *
6 * Released under the terms of the GNU GPL v2.0. 7 * Released under the terms of the GNU GPL v2.0.
7 */ 8 */
@@ -24,8 +25,15 @@ void __flush_wback_region(void *start, int size)
24 end = ((unsigned long)start + size + L1_CACHE_BYTES-1) 25 end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
25 & ~(L1_CACHE_BYTES-1); 26 & ~(L1_CACHE_BYTES-1);
26 for (v = begin; v < end; v+=L1_CACHE_BYTES) { 27 for (v = begin; v < end; v+=L1_CACHE_BYTES) {
27 /* FIXME cache purge */ 28 unsigned long addr = CACHE_OC_ADDRESS_ARRAY | (v & 0x00000ff0);
28 ctrl_outl((v & 0x1ffffc00), (v & 0x00000ff0) | 0x00000008); 29 int way;
30 for (way = 0; way < 4; way++) {
31 unsigned long data = ctrl_inl(addr | (way << 12));
32 if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) {
33 data &= ~SH_CACHE_UPDATED;
34 ctrl_outl(data, addr | (way << 12));
35 }
36 }
29 } 37 }
30} 38}
31 39
@@ -37,21 +45,40 @@ void __flush_purge_region(void *start, int size)
37 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); 45 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
38 end = ((unsigned long)start + size + L1_CACHE_BYTES-1) 46 end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
39 & ~(L1_CACHE_BYTES-1); 47 & ~(L1_CACHE_BYTES-1);
40 for (v = begin; v < end; v+=L1_CACHE_BYTES) { 48
41 ctrl_outl((v & 0x1ffffc00), (v & 0x00000ff0) | 0x00000008); 49 for (v = begin; v < end; v+=L1_CACHE_BYTES)
42 } 50 ctrl_outl((v & CACHE_PHYSADDR_MASK),
51 CACHE_OC_ADDRESS_ARRAY | (v & 0x00000ff0) | 0x00000008);
43} 52}
44 53
45void __flush_invalidate_region(void *start, int size) 54void __flush_invalidate_region(void *start, int size)
46{ 55{
56#ifdef CONFIG_CACHE_WRITEBACK
57 /*
58 * SH-2 does not support individual line invalidation, only a
59 * global invalidate.
60 */
61 unsigned long ccr;
62 unsigned long flags;
63 local_irq_save(flags);
64 jump_to_uncached();
65
66 ccr = ctrl_inl(CCR);
67 ccr |= CCR_CACHE_INVALIDATE;
68 ctrl_outl(ccr, CCR);
69
70 back_to_cached();
71 local_irq_restore(flags);
72#else
47 unsigned long v; 73 unsigned long v;
48 unsigned long begin, end; 74 unsigned long begin, end;
49 75
50 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1); 76 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
51 end = ((unsigned long)start + size + L1_CACHE_BYTES-1) 77 end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
52 & ~(L1_CACHE_BYTES-1); 78 & ~(L1_CACHE_BYTES-1);
53 for (v = begin; v < end; v+=L1_CACHE_BYTES) {
54 ctrl_outl((v & 0x1ffffc00), (v & 0x00000ff0) | 0x00000008);
55 }
56}
57 79
80 for (v = begin; v < end; v+=L1_CACHE_BYTES)
81 ctrl_outl((v & CACHE_PHYSADDR_MASK),
82 CACHE_OC_ADDRESS_ARRAY | (v & 0x00000ff0) | 0x00000008);
83#endif
84}
diff --git a/arch/sh/mm/cache-sh2a.c b/arch/sh/mm/cache-sh2a.c
new file mode 100644
index 000000000000..62c0c5f35120
--- /dev/null
+++ b/arch/sh/mm/cache-sh2a.c
@@ -0,0 +1,129 @@
1/*
2 * arch/sh/mm/cache-sh2a.c
3 *
4 * Copyright (C) 2008 Yoshinori Sato
5 *
6 * Released under the terms of the GNU GPL v2.0.
7 */
8
9#include <linux/init.h>
10#include <linux/mm.h>
11
12#include <asm/cache.h>
13#include <asm/addrspace.h>
14#include <asm/processor.h>
15#include <asm/cacheflush.h>
16#include <asm/io.h>
17
18void __flush_wback_region(void *start, int size)
19{
20 unsigned long v;
21 unsigned long begin, end;
22 unsigned long flags;
23
24 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
25 end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
26 & ~(L1_CACHE_BYTES-1);
27
28 local_irq_save(flags);
29 jump_to_uncached();
30
31 for (v = begin; v < end; v+=L1_CACHE_BYTES) {
32 unsigned long addr = CACHE_OC_ADDRESS_ARRAY | (v & 0x000007f0);
33 int way;
34 for (way = 0; way < 4; way++) {
35 unsigned long data = ctrl_inl(addr | (way << 11));
36 if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) {
37 data &= ~SH_CACHE_UPDATED;
38 ctrl_outl(data, addr | (way << 11));
39 }
40 }
41 }
42
43 back_to_cached();
44 local_irq_restore(flags);
45}
46
47void __flush_purge_region(void *start, int size)
48{
49 unsigned long v;
50 unsigned long begin, end;
51 unsigned long flags;
52
53 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
54 end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
55 & ~(L1_CACHE_BYTES-1);
56
57 local_irq_save(flags);
58 jump_to_uncached();
59
60 for (v = begin; v < end; v+=L1_CACHE_BYTES) {
61 ctrl_outl((v & CACHE_PHYSADDR_MASK),
62 CACHE_OC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008);
63 }
64 back_to_cached();
65 local_irq_restore(flags);
66}
67
68void __flush_invalidate_region(void *start, int size)
69{
70 unsigned long v;
71 unsigned long begin, end;
72 unsigned long flags;
73
74 begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
75 end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
76 & ~(L1_CACHE_BYTES-1);
77 local_irq_save(flags);
78 jump_to_uncached();
79
80#ifdef CONFIG_CACHE_WRITEBACK
81 ctrl_outl(ctrl_inl(CCR) | CCR_OCACHE_INVALIDATE, CCR);
82 /* I-cache invalidate */
83 for (v = begin; v < end; v+=L1_CACHE_BYTES) {
84 ctrl_outl((v & CACHE_PHYSADDR_MASK),
85 CACHE_IC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008);
86 }
87#else
88 for (v = begin; v < end; v+=L1_CACHE_BYTES) {
89 ctrl_outl((v & CACHE_PHYSADDR_MASK),
90 CACHE_IC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008);
91 ctrl_outl((v & CACHE_PHYSADDR_MASK),
92 CACHE_OC_ADDRESS_ARRAY | (v & 0x000003f0) | 0x00000008);
93 }
94#endif
95 back_to_cached();
96 local_irq_restore(flags);
97}
98
99/* WBack O-Cache and flush I-Cache */
100void flush_icache_range(unsigned long start, unsigned long end)
101{
102 unsigned long v;
103 unsigned long flags;
104
105 start = start & ~(L1_CACHE_BYTES-1);
106 end = (end + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1);
107
108 local_irq_save(flags);
109 jump_to_uncached();
110
111 for (v = start; v < end; v+=L1_CACHE_BYTES) {
112 unsigned long addr = (v & 0x000007f0);
113 int way;
114 /* O-Cache writeback */
115 for (way = 0; way < 4; way++) {
116 unsigned long data = ctrl_inl(CACHE_OC_ADDRESS_ARRAY | addr | (way << 11));
117 if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) {
118 data &= ~SH_CACHE_UPDATED;
119 ctrl_outl(data, CACHE_OC_ADDRESS_ARRAY | addr | (way << 11));
120 }
121 }
122 /* I-Cache invalidate */
123 ctrl_outl(addr,
124 CACHE_IC_ADDRESS_ARRAY | addr | 0x00000008);
125 }
126
127 back_to_cached();
128 local_irq_restore(flags);
129}
diff --git a/arch/sh/mm/tlb-sh5.c b/arch/sh/mm/tlb-sh5.c
index f34274a1ded3..dae131243bcc 100644
--- a/arch/sh/mm/tlb-sh5.c
+++ b/arch/sh/mm/tlb-sh5.c
@@ -15,9 +15,7 @@
15#include <asm/mmu_context.h> 15#include <asm/mmu_context.h>
16 16
17/** 17/**
18 * sh64_tlb_init 18 * sh64_tlb_init - Perform initial setup for the DTLB and ITLB.
19 *
20 * Perform initial setup for the DTLB and ITLB.
21 */ 19 */
22int __init sh64_tlb_init(void) 20int __init sh64_tlb_init(void)
23{ 21{
@@ -46,9 +44,7 @@ int __init sh64_tlb_init(void)
46} 44}
47 45
48/** 46/**
49 * sh64_next_free_dtlb_entry 47 * sh64_next_free_dtlb_entry - Find the next available DTLB entry
50 *
51 * Find the next available DTLB entry
52 */ 48 */
53unsigned long long sh64_next_free_dtlb_entry(void) 49unsigned long long sh64_next_free_dtlb_entry(void)
54{ 50{
@@ -56,9 +52,7 @@ unsigned long long sh64_next_free_dtlb_entry(void)
56} 52}
57 53
58/** 54/**
59 * sh64_get_wired_dtlb_entry 55 * sh64_get_wired_dtlb_entry - Allocate a wired (locked-in) entry in the DTLB
60 *
61 * Allocate a wired (locked-in) entry in the DTLB
62 */ 56 */
63unsigned long long sh64_get_wired_dtlb_entry(void) 57unsigned long long sh64_get_wired_dtlb_entry(void)
64{ 58{
@@ -71,12 +65,10 @@ unsigned long long sh64_get_wired_dtlb_entry(void)
71} 65}
72 66
73/** 67/**
74 * sh64_put_wired_dtlb_entry 68 * sh64_put_wired_dtlb_entry - Free a wired (locked-in) entry in the DTLB.
75 * 69 *
76 * @entry: Address of TLB slot. 70 * @entry: Address of TLB slot.
77 * 71 *
78 * Free a wired (locked-in) entry in the DTLB.
79 *
80 * Works like a stack, last one to allocate must be first one to free. 72 * Works like a stack, last one to allocate must be first one to free.
81 */ 73 */
82int sh64_put_wired_dtlb_entry(unsigned long long entry) 74int sh64_put_wired_dtlb_entry(unsigned long long entry)
@@ -115,7 +107,7 @@ int sh64_put_wired_dtlb_entry(unsigned long long entry)
115} 107}
116 108
117/** 109/**
118 * sh64_setup_tlb_slot 110 * sh64_setup_tlb_slot - Load up a translation in a wired slot.
119 * 111 *
120 * @config_addr: Address of TLB slot. 112 * @config_addr: Address of TLB slot.
121 * @eaddr: Virtual address. 113 * @eaddr: Virtual address.
@@ -154,7 +146,7 @@ inline void sh64_setup_tlb_slot(unsigned long long config_addr,
154} 146}
155 147
156/** 148/**
157 * sh64_teardown_tlb_slot 149 * sh64_teardown_tlb_slot - Teardown a translation.
158 * 150 *
159 * @config_addr: Address of TLB slot. 151 * @config_addr: Address of TLB slot.
160 * 152 *
diff --git a/arch/sh/tools/Makefile b/arch/sh/tools/Makefile
index b5d202be8206..567516b58acc 100644
--- a/arch/sh/tools/Makefile
+++ b/arch/sh/tools/Makefile
@@ -10,7 +10,7 @@
10# Shamelessly cloned from ARM. 10# Shamelessly cloned from ARM.
11# 11#
12 12
13arch/sh/include/asm/machtypes.h: $(src)/gen-mach-types $(src)/mach-types 13include/asm-sh/machtypes.h: $(src)/gen-mach-types $(src)/mach-types
14 @echo ' Generating $@' 14 @echo ' Generating $@'
15 $(Q)if [ ! -d arch/sh/include/asm ]; then mkdir -p arch/sh/include/asm; fi 15 $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi
16 $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; } 16 $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; }
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 07:13:02 -0500