diff options
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/kernel/signal.c | 141 | ||||
-rw-r--r-- | arch/powerpc/kernel/signal_32.c | 140 |
2 files changed, 141 insertions, 140 deletions
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index d215f9554553..4b0152108f61 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -18,12 +18,153 @@ #include <linux/syscalls.h> #include <asm/hw_breakpoint.h> #include <linux/uaccess.h> +#include <asm/switch_to.h> #include <asm/unistd.h> #include <asm/debug.h> #include <asm/tm.h> #include "signal.h" +#ifdef CONFIG_VSX +unsigned long copy_fpr_to_user(void __user *to, + struct task_struct *task) +{ + u64 buf[ELF_NFPREG]; + int i; + + /* save FPR copy to local buffer then write to the thread_struct */ + for (i = 0; i < (ELF_NFPREG - 1) ; i++) + buf[i] = task->thread.TS_FPR(i); + buf[i] = task->thread.fp_state.fpscr; + return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double)); +} + +unsigned long copy_fpr_from_user(struct task_struct *task, + void __user *from) +{ + u64 buf[ELF_NFPREG]; + int i; + + if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double))) + return 1; + for (i = 0; i < (ELF_NFPREG - 1) ; i++) + task->thread.TS_FPR(i) = buf[i]; + task->thread.fp_state.fpscr = buf[i]; + + return 0; +} + +unsigned long copy_vsx_to_user(void __user *to, + struct task_struct *task) +{ + u64 buf[ELF_NVSRHALFREG]; + int i; + + /* save FPR copy to local buffer then write to the thread_struct */ + for (i = 0; i < ELF_NVSRHALFREG; i++) + buf[i] = task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET]; + return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double)); +} + +unsigned long copy_vsx_from_user(struct task_struct *task, + void __user *from) +{ + u64 buf[ELF_NVSRHALFREG]; + int i; + + if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double))) + return 1; + for (i = 0; i < ELF_NVSRHALFREG ; i++) + task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i]; + return 0; +} + +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +unsigned long copy_ckfpr_to_user(void __user *to, + struct task_struct *task) +{ + u64 buf[ELF_NFPREG]; + int i; + + /* save FPR copy to local buffer then write to the thread_struct */ + for (i = 0; i < (ELF_NFPREG - 1) ; i++) + buf[i] = task->thread.TS_CKFPR(i); + buf[i] = task->thread.ckfp_state.fpscr; + return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double)); +} + +unsigned long copy_ckfpr_from_user(struct task_struct *task, + void __user *from) +{ + u64 buf[ELF_NFPREG]; + int i; + + if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double))) + return 1; + for (i = 0; i < (ELF_NFPREG - 1) ; i++) + task->thread.TS_CKFPR(i) = buf[i]; + task->thread.ckfp_state.fpscr = buf[i]; + + return 0; +} + +unsigned long copy_ckvsx_to_user(void __user *to, + struct task_struct *task) +{ + u64 buf[ELF_NVSRHALFREG]; + int i; + + /* save FPR copy to local buffer then write to the thread_struct */ + for (i = 0; i < ELF_NVSRHALFREG; i++) + buf[i] = task->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET]; + return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double)); +} + +unsigned long copy_ckvsx_from_user(struct task_struct *task, + void __user *from) +{ + u64 buf[ELF_NVSRHALFREG]; + int i; + + if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double))) + return 1; + for (i = 0; i < ELF_NVSRHALFREG ; i++) + task->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i]; + return 0; +} +#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ +#else +inline unsigned long copy_fpr_to_user(void __user *to, + struct task_struct *task) +{ + return __copy_to_user(to, task->thread.fp_state.fpr, + ELF_NFPREG * sizeof(double)); +} + +inline unsigned long copy_fpr_from_user(struct task_struct *task, + void __user *from) +{ + return __copy_from_user(task->thread.fp_state.fpr, from, + ELF_NFPREG * sizeof(double)); +} + +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +inline unsigned long copy_ckfpr_to_user(void __user *to, + struct task_struct *task) +{ + return __copy_to_user(to, task->thread.ckfp_state.fpr, + ELF_NFPREG * sizeof(double)); +} + +inline unsigned long copy_ckfpr_from_user(struct task_struct *task, + void __user *from) +{ + return __copy_from_user(task->thread.ckfp_state.fpr, from, + ELF_NFPREG * sizeof(double)); +} +#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ +#endif + /* Log an error when sending an unhandled signal to a process. Controlled * through debug.exception-trace sysctl. */ diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 1b090a76b444..4f96d29a22bf 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -235,146 +235,6 @@ struct rt_sigframe { int abigap[56]; }; -#ifdef CONFIG_VSX -unsigned long copy_fpr_to_user(void __user *to, - struct task_struct *task) -{ - u64 buf[ELF_NFPREG]; - int i; - - /* save FPR copy to local buffer then write to the thread_struct */ - for (i = 0; i < (ELF_NFPREG - 1) ; i++) - buf[i] = task->thread.TS_FPR(i); - buf[i] = task->thread.fp_state.fpscr; - return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double)); -} - -unsigned long copy_fpr_from_user(struct task_struct *task, - void __user *from) -{ - u64 buf[ELF_NFPREG]; - int i; - - if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double))) - return 1; - for (i = 0; i < (ELF_NFPREG - 1) ; i++) - task->thread.TS_FPR(i) = buf[i]; - task->thread.fp_state.fpscr = buf[i]; - - return 0; -} - -unsigned long copy_vsx_to_user(void __user *to, - struct task_struct *task) -{ - u64 buf[ELF_NVSRHALFREG]; - int i; - - /* save FPR copy to local buffer then write to the thread_struct */ - for (i = 0; i < ELF_NVSRHALFREG; i++) - buf[i] = task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET]; - return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double)); -} - -unsigned long copy_vsx_from_user(struct task_struct *task, - void __user *from) -{ - u64 buf[ELF_NVSRHALFREG]; - int i; - - if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double))) - return 1; - for (i = 0; i < ELF_NVSRHALFREG ; i++) - task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i]; - return 0; -} - -#ifdef CONFIG_PPC_TRANSACTIONAL_MEM -unsigned long copy_ckfpr_to_user(void __user *to, - struct task_struct *task) -{ - u64 buf[ELF_NFPREG]; - int i; - - /* save FPR copy to local buffer then write to the thread_struct */ - for (i = 0; i < (ELF_NFPREG - 1) ; i++) - buf[i] = task->thread.TS_CKFPR(i); - buf[i] = task->thread.ckfp_state.fpscr; - return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double)); -} - -unsigned long copy_ckfpr_from_user(struct task_struct *task, - void __user *from) -{ - u64 buf[ELF_NFPREG]; - int i; - - if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double))) - return 1; - for (i = 0; i < (ELF_NFPREG - 1) ; i++) - task->thread.TS_CKFPR(i) = buf[i]; - task->thread.ckfp_state.fpscr = buf[i]; - - return 0; -} - -unsigned long copy_ckvsx_to_user(void __user *to, - struct task_struct *task) -{ - u64 buf[ELF_NVSRHALFREG]; - int i; - - /* save FPR copy to local buffer then write to the thread_struct */ - for (i = 0; i < ELF_NVSRHALFREG; i++) - buf[i] = task->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET]; - return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double)); -} - -unsigned long copy_ckvsx_from_user(struct task_struct *task, - void __user *from) -{ - u64 buf[ELF_NVSRHALFREG]; - int i; - - if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double))) - return 1; - for (i = 0; i < ELF_NVSRHALFREG ; i++) - task->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i]; - return 0; -} -#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ -#else -inline unsigned long copy_fpr_to_user(void __user *to, - struct task_struct *task) -{ - return __copy_to_user(to, task->thread.fp_state.fpr, - ELF_NFPREG * sizeof(double)); -} - -inline unsigned long copy_fpr_from_user(struct task_struct *task, - void __user *from) -{ - return __copy_from_user(task->thread.fp_state.fpr, from, - ELF_NFPREG * sizeof(double)); -} - -#ifdef CONFIG_PPC_TRANSACTIONAL_MEM -inline unsigned long copy_ckfpr_to_user(void __user *to, - struct task_struct *task) -{ - return __copy_to_user(to, task->thread.ckfp_state.fpr, - ELF_NFPREG * sizeof(double)); -} - -inline unsigned long copy_ckfpr_from_user(struct task_struct *task, - void __user *from) -{ - return __copy_from_user(task->thread.ckfp_state.fpr, from, - ELF_NFPREG * sizeof(double)); -} -#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ -#endif - /* * Save the current user registers on the user stack. * We only save the altivec/spe registers if the process has used |