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-rw-r--r--arch/powerpc/kernel/Makefile4
-rw-r--r--arch/powerpc/kernel/nvram_64.c8
-rw-r--r--arch/powerpc/kernel/ptrace/Makefile4
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace-decl.h14
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace-fpu.c10
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace-novsx.c8
-rw-r--r--arch/powerpc/kernel/ptrace/ptrace-view.c2
-rw-r--r--arch/powerpc/kernel/signal_32.c20
-rw-r--r--arch/powerpc/kernel/syscalls/syscall.tbl1
-rw-r--r--arch/powerpc/kernel/vdso32/gettimeofday.S11
10 files changed, 49 insertions, 33 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 6084fa499aa3..f66b63e81c3b 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -191,3 +191,7 @@ $(obj)/prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o FORCE
targets += prom_init_check
clean-files := vmlinux.lds
+
+# Force dependency (incbin is bad)
+$(obj)/vdso32_wrapper.o : $(obj)/vdso32/vdso32.so.dbg
+$(obj)/vdso64_wrapper.o : $(obj)/vdso64/vdso64.so.dbg
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 532f22637783..3c8d9bbb51cf 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -647,6 +647,7 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
{
struct oops_log_info *oops_hdr = (struct oops_log_info *)oops_buf;
static unsigned int oops_count = 0;
+ static struct kmsg_dump_iter iter;
static bool panicking = false;
static DEFINE_SPINLOCK(lock);
unsigned long flags;
@@ -681,13 +682,14 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
return;
if (big_oops_buf) {
- kmsg_dump_get_buffer(dumper, false,
+ kmsg_dump_rewind(&iter);
+ kmsg_dump_get_buffer(&iter, false,
big_oops_buf, big_oops_buf_sz, &text_len);
rc = zip_oops(text_len);
}
if (rc != 0) {
- kmsg_dump_rewind(dumper);
- kmsg_dump_get_buffer(dumper, false,
+ kmsg_dump_rewind(&iter);
+ kmsg_dump_get_buffer(&iter, false,
oops_data, oops_data_sz, &text_len);
err_type = ERR_TYPE_KERNEL_PANIC;
oops_hdr->version = cpu_to_be16(OOPS_HDR_VERSION);
diff --git a/arch/powerpc/kernel/ptrace/Makefile b/arch/powerpc/kernel/ptrace/Makefile
index 8ebc11d1168d..77abd1a5a508 100644
--- a/arch/powerpc/kernel/ptrace/Makefile
+++ b/arch/powerpc/kernel/ptrace/Makefile
@@ -6,11 +6,11 @@
CFLAGS_ptrace-view.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'
obj-y += ptrace.o ptrace-view.o
-obj-$(CONFIG_PPC_FPU_REGS) += ptrace-fpu.o
+obj-y += ptrace-fpu.o
obj-$(CONFIG_COMPAT) += ptrace32.o
obj-$(CONFIG_VSX) += ptrace-vsx.o
ifneq ($(CONFIG_VSX),y)
-obj-$(CONFIG_PPC_FPU_REGS) += ptrace-novsx.o
+obj-y += ptrace-novsx.o
endif
obj-$(CONFIG_ALTIVEC) += ptrace-altivec.o
obj-$(CONFIG_SPE) += ptrace-spe.o
diff --git a/arch/powerpc/kernel/ptrace/ptrace-decl.h b/arch/powerpc/kernel/ptrace/ptrace-decl.h
index 3487f2c9735c..eafe5f0f6289 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-decl.h
+++ b/arch/powerpc/kernel/ptrace/ptrace-decl.h
@@ -165,22 +165,8 @@ int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data);
extern const struct user_regset_view user_ppc_native_view;
/* ptrace-fpu */
-#ifdef CONFIG_PPC_FPU_REGS
int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data);
int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data);
-#else
-static inline int
-ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data)
-{
- return -EIO;
-}
-
-static inline int
-ptrace_put_fpr(struct task_struct *child, int index, unsigned long data)
-{
- return -EIO;
-}
-#endif
/* ptrace-(no)adv */
void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
diff --git a/arch/powerpc/kernel/ptrace/ptrace-fpu.c b/arch/powerpc/kernel/ptrace/ptrace-fpu.c
index 8301cb52dd99..5dca19361316 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-fpu.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-fpu.c
@@ -8,32 +8,42 @@
int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data)
{
+#ifdef CONFIG_PPC_FPU_REGS
unsigned int fpidx = index - PT_FPR0;
+#endif
if (index > PT_FPSCR)
return -EIO;
+#ifdef CONFIG_PPC_FPU_REGS
flush_fp_to_thread(child);
if (fpidx < (PT_FPSCR - PT_FPR0))
memcpy(data, &child->thread.TS_FPR(fpidx), sizeof(long));
else
*data = child->thread.fp_state.fpscr;
+#else
+ *data = 0;
+#endif
return 0;
}
int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data)
{
+#ifdef CONFIG_PPC_FPU_REGS
unsigned int fpidx = index - PT_FPR0;
+#endif
if (index > PT_FPSCR)
return -EIO;
+#ifdef CONFIG_PPC_FPU_REGS
flush_fp_to_thread(child);
if (fpidx < (PT_FPSCR - PT_FPR0))
memcpy(&child->thread.TS_FPR(fpidx), &data, sizeof(long));
else
child->thread.fp_state.fpscr = data;
+#endif
return 0;
}
diff --git a/arch/powerpc/kernel/ptrace/ptrace-novsx.c b/arch/powerpc/kernel/ptrace/ptrace-novsx.c
index b3b36835658a..7433f3db979a 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-novsx.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-novsx.c
@@ -21,12 +21,16 @@
int fpr_get(struct task_struct *target, const struct user_regset *regset,
struct membuf to)
{
+#ifdef CONFIG_PPC_FPU_REGS
BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
offsetof(struct thread_fp_state, fpr[32]));
flush_fp_to_thread(target);
return membuf_write(&to, &target->thread.fp_state, 33 * sizeof(u64));
+#else
+ return membuf_write(&to, &empty_zero_page, 33 * sizeof(u64));
+#endif
}
/*
@@ -46,6 +50,7 @@ int fpr_set(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
+#ifdef CONFIG_PPC_FPU_REGS
BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
offsetof(struct thread_fp_state, fpr[32]));
@@ -53,4 +58,7 @@ int fpr_set(struct task_struct *target, const struct user_regset *regset,
return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&target->thread.fp_state, 0, -1);
+#else
+ return 0;
+#endif
}
diff --git a/arch/powerpc/kernel/ptrace/ptrace-view.c b/arch/powerpc/kernel/ptrace/ptrace-view.c
index 48ff9121e9c6..773bcc4ca843 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-view.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-view.c
@@ -512,13 +512,11 @@ static const struct user_regset native_regsets[] = {
.size = sizeof(long), .align = sizeof(long),
.regset_get = gpr_get, .set = gpr_set
},
-#ifdef CONFIG_PPC_FPU_REGS
[REGSET_FPR] = {
.core_note_type = NT_PRFPREG, .n = ELF_NFPREG,
.size = sizeof(double), .align = sizeof(double),
.regset_get = fpr_get, .set = fpr_set
},
-#endif
#ifdef CONFIG_ALTIVEC
[REGSET_VMX] = {
.core_note_type = NT_PPC_VMX, .n = 34,
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 915ea2a457a0..8f05ed0da292 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -798,7 +798,7 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
else
prepare_save_user_regs(1);
- if (!user_write_access_begin(frame, sizeof(*frame)))
+ if (!user_access_begin(frame, sizeof(*frame)))
goto badframe;
/* Put the siginfo & fill in most of the ucontext */
@@ -832,17 +832,15 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
unsafe_put_user(PPC_INST_ADDI + __NR_rt_sigreturn, &mctx->mc_pad[0],
failed);
unsafe_put_user(PPC_INST_SC, &mctx->mc_pad[1], failed);
+ asm("dcbst %y0; sync; icbi %y0; sync" :: "Z" (mctx->mc_pad[0]));
}
unsafe_put_sigset_t(&frame->uc.uc_sigmask, oldset, failed);
- user_write_access_end();
+ user_access_end();
if (copy_siginfo_to_user(&frame->info, &ksig->info))
goto badframe;
- if (tramp == (unsigned long)mctx->mc_pad)
- flush_icache_range(tramp, tramp + 2 * sizeof(unsigned long));
-
regs->link = tramp;
#ifdef CONFIG_PPC_FPU_REGS
@@ -867,7 +865,7 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
return 0;
failed:
- user_write_access_end();
+ user_access_end();
badframe:
signal_fault(tsk, regs, "handle_rt_signal32", frame);
@@ -902,7 +900,7 @@ int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
else
prepare_save_user_regs(1);
- if (!user_write_access_begin(frame, sizeof(*frame)))
+ if (!user_access_begin(frame, sizeof(*frame)))
goto badframe;
sc = (struct sigcontext __user *) &frame->sctx;
@@ -931,11 +929,9 @@ int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
/* Set up the sigreturn trampoline: li r0,sigret; sc */
unsafe_put_user(PPC_INST_ADDI + __NR_sigreturn, &mctx->mc_pad[0], failed);
unsafe_put_user(PPC_INST_SC, &mctx->mc_pad[1], failed);
+ asm("dcbst %y0; sync; icbi %y0; sync" :: "Z" (mctx->mc_pad[0]));
}
- user_write_access_end();
-
- if (tramp == (unsigned long)mctx->mc_pad)
- flush_icache_range(tramp, tramp + 2 * sizeof(unsigned long));
+ user_access_end();
regs->link = tramp;
@@ -958,7 +954,7 @@ int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
return 0;
failed:
- user_write_access_end();
+ user_access_end();
badframe:
signal_fault(tsk, regs, "handle_signal32", frame);
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 0b2480cf3e47..f66f9c9b9d6c 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -522,3 +522,4 @@
440 common process_madvise sys_process_madvise
441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442 common mount_setattr sys_mount_setattr
+443 common quotactl_path sys_quotactl_path
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index a6e29f880e0e..d21d08140a5e 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -65,3 +65,14 @@ V_FUNCTION_END(__kernel_clock_getres)
V_FUNCTION_BEGIN(__kernel_time)
cvdso_call_time __c_kernel_time
V_FUNCTION_END(__kernel_time)
+
+/* Routines for restoring integer registers, called by the compiler. */
+/* Called with r11 pointing to the stack header word of the caller of the */
+/* function, just beyond the end of the integer restore area. */
+_GLOBAL(_restgpr_31_x)
+_GLOBAL(_rest32gpr_31_x)
+ lwz r0,4(r11)
+ lwz r31,-4(r11)
+ mtlr r0
+ mr r1,r11
+ blr
generated by cgit (git 2.34.1) at 2025-05-30 07:56:49 +0000