diff options
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 70fbde84b83..4e203a89e18 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -350,6 +350,51 @@ static int vr_set(struct task_struct *target, const struct user_regset *regset, } #endif /* CONFIG_ALTIVEC */ +#ifdef CONFIG_VSX +/* + * Currently to set and and get all the vsx state, you need to call + * the fp and VMX calls aswell. This only get/sets the lower 32 + * 128bit VSX registers. + */ + +static int vsr_active(struct task_struct *target, + const struct user_regset *regset) +{ + flush_vsx_to_thread(target); + return target->thread.used_vsr ? regset->n : 0; +} + +static int vsr_get(struct task_struct *target, const struct user_regset *regset, + unsigned int pos, unsigned int count, + void *kbuf, void __user *ubuf) +{ + int ret; + + flush_vsx_to_thread(target); + + ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, + target->thread.fpr, 0, + 32 * sizeof(vector128)); + + return ret; +} + +static int vsr_set(struct task_struct *target, const struct user_regset *regset, + unsigned int pos, unsigned int count, + const void *kbuf, const void __user *ubuf) +{ + int ret; + + flush_vsx_to_thread(target); + + ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, + target->thread.fpr, 0, + 32 * sizeof(vector128)); + + return ret; +} +#endif /* CONFIG_VSX */ + #ifdef CONFIG_SPE /* @@ -426,6 +471,9 @@ enum powerpc_regset { #ifdef CONFIG_ALTIVEC REGSET_VMX, #endif +#ifdef CONFIG_VSX + REGSET_VSX, +#endif #ifdef CONFIG_SPE REGSET_SPE, #endif @@ -449,6 +497,13 @@ static const struct user_regset native_regsets[] = { .active = vr_active, .get = vr_get, .set = vr_set }, #endif +#ifdef CONFIG_VSX + [REGSET_VSX] = { + .n = 32, + .size = sizeof(vector128), .align = sizeof(vector128), + .active = vsr_active, .get = vsr_get, .set = vsr_set + }, +#endif #ifdef CONFIG_SPE [REGSET_SPE] = { .n = 35, @@ -849,6 +904,21 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) sizeof(u32)), (const void __user *) data); #endif +#ifdef CONFIG_VSX + case PTRACE_GETVSRREGS: + return copy_regset_to_user(child, &user_ppc_native_view, + REGSET_VSX, + 0, (32 * sizeof(vector128) + + sizeof(u32)), + (void __user *) data); + + case PTRACE_SETVSRREGS: + return copy_regset_from_user(child, &user_ppc_native_view, + REGSET_VSX, + 0, (32 * sizeof(vector128) + + sizeof(u32)), + (const void __user *) data); +#endif #ifdef CONFIG_SPE case PTRACE_GETEVRREGS: /* Get the child spe register state. */ |