diff options
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/include/asm/fsl_pamu_stash.h | 12 | ||||
-rw-r--r-- | arch/powerpc/kernel/Makefile | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/ptrace/Makefile | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-decl.h | 14 | ||||
-rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-fpu.c | 10 | ||||
-rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-novsx.c | 8 | ||||
-rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-view.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/signal_32.c | 20 |
8 files changed, 35 insertions, 39 deletions
diff --git a/arch/powerpc/include/asm/fsl_pamu_stash.h b/arch/powerpc/include/asm/fsl_pamu_stash.h index 30a31ad2123d..c0fbadb70b5d 100644 --- a/arch/powerpc/include/asm/fsl_pamu_stash.h +++ b/arch/powerpc/include/asm/fsl_pamu_stash.h @@ -7,6 +7,8 @@ #ifndef __FSL_PAMU_STASH_H #define __FSL_PAMU_STASH_H +struct iommu_domain; + /* cache stash targets */ enum pamu_stash_target { PAMU_ATTR_CACHE_L1 = 1, @@ -14,14 +16,6 @@ enum pamu_stash_target { PAMU_ATTR_CACHE_L3, }; -/* - * This attribute allows configuring stashig specific parameters - * in the PAMU hardware. - */ - -struct pamu_stash_attribute { - u32 cpu; /* cpu number */ - u32 cache; /* cache to stash to: L1,L2,L3 */ -}; +int fsl_pamu_configure_l1_stash(struct iommu_domain *domain, u32 cpu); #endif /* __FSL_PAMU_STASH_H */ 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 : $(obj)/vdso64/vdso64.so.dbg diff --git a/arch/powerpc/kernel/ptrace/Makefile b/arch/powerpc/kernel/ptrace/Makefile index 8ebc11d1168d..77abd1a5a508 100644 --- a/arch/powerpc/kernel/ptrace/Makefile +++ b/arch/powerpc/kernel/ptrace/Makefile @@ -6,11 +6,11 @@ CFLAGS_ptrace-view.o += -DUTS_MACHINE='"$(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 2bad8068f598..6ccffc65ac97 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-view.c +++ b/arch/powerpc/kernel/ptrace/ptrace-view.c @@ -522,13 +522,11 @@ 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 75ee918a120a..f651b992fe01 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -775,7 +775,7 @@ 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 */ @@ -809,17 +809,15 @@ 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 @@ -844,7 +842,7 @@ 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); @@ -879,7 +877,7 @@ 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; @@ -908,11 +906,9 @@ 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; @@ -935,7 +931,7 @@ 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); 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