Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 210 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h
new file mode 100644
index 000000000..a429c57ed
--- /dev/null
+++ b/arch/powerpc/kernel/signal.h
@@ -0,0 +1,210 @@
+/*
+ *    Copyright (c) 2007 Benjamin Herrenschmidt, IBM Corporation
+ *    Extracted from signal_32.c and signal_64.c
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file README.legal in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _POWERPC_ARCH_SIGNAL_H
+#define _POWERPC_ARCH_SIGNAL_H
+
+void __user *get_sigframe(struct ksignal *ksig, struct task_struct *tsk,
+			  size_t frame_size, int is_32);
+
+extern int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
+			   struct task_struct *tsk);
+
+extern int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
+			      struct task_struct *tsk);
+
+static inline int __get_user_sigset(sigset_t *dst, const sigset_t __user *src)
+{
+	BUILD_BUG_ON(sizeof(sigset_t) != sizeof(u64));
+
+	return __get_user(dst->sig[0], (u64 __user *)&src->sig[0]);
+}
+#define unsafe_get_user_sigset(dst, src, label) do {			\
+	sigset_t *__dst = dst;						\
+	const sigset_t __user *__src = src;				\
+	int i;								\
+									\
+	for (i = 0; i < _NSIG_WORDS; i++)				\
+		unsafe_get_user(__dst->sig[i], &__src->sig[i], label);	\
+} while (0)
+
+#ifdef CONFIG_VSX
+extern unsigned long copy_vsx_to_user(void __user *to,
+				      struct task_struct *task);
+extern unsigned long copy_ckvsx_to_user(void __user *to,
+					       struct task_struct *task);
+extern unsigned long copy_vsx_from_user(struct task_struct *task,
+					void __user *from);
+extern unsigned long copy_ckvsx_from_user(struct task_struct *task,
+						 void __user *from);
+unsigned long copy_fpr_to_user(void __user *to, struct task_struct *task);
+unsigned long copy_ckfpr_to_user(void __user *to, struct task_struct *task);
+unsigned long copy_fpr_from_user(struct task_struct *task, void __user *from);
+unsigned long copy_ckfpr_from_user(struct task_struct *task, void __user *from);
+
+#define unsafe_copy_fpr_to_user(to, task, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)to;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NFPREG - 1 ; i++)				\
+		unsafe_put_user(__t->thread.TS_FPR(i), &buf[i], label); \
+	unsafe_put_user(__t->thread.fp_state.fpscr, &buf[i], label);	\
+} while (0)
+
+#define unsafe_copy_vsx_to_user(to, task, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)to;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NVSRHALFREG ; i++)				\
+		unsafe_put_user(__t->thread.fp_state.fpr[i][TS_VSRLOWOFFSET], \
+				&buf[i], label);\
+} while (0)
+
+#define unsafe_copy_fpr_from_user(task, from, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)from;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NFPREG - 1; i++)				\
+		unsafe_get_user(__t->thread.TS_FPR(i), &buf[i], label); \
+	unsafe_get_user(__t->thread.fp_state.fpscr, &buf[i], label);	\
+} while (0)
+
+#define unsafe_copy_vsx_from_user(task, from, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)from;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NVSRHALFREG ; i++)				\
+		unsafe_get_user(__t->thread.fp_state.fpr[i][TS_VSRLOWOFFSET], \
+				&buf[i], label);			\
+} while (0)
+
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+#define unsafe_copy_ckfpr_to_user(to, task, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)to;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NFPREG - 1 ; i++)				\
+		unsafe_put_user(__t->thread.TS_CKFPR(i), &buf[i], label);\
+	unsafe_put_user(__t->thread.ckfp_state.fpscr, &buf[i], label);	\
+} while (0)
+
+#define unsafe_copy_ckvsx_to_user(to, task, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)to;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NVSRHALFREG ; i++)				\
+		unsafe_put_user(__t->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET], \
+				&buf[i], label);\
+} while (0)
+
+#define unsafe_copy_ckfpr_from_user(task, from, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)from;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NFPREG - 1 ; i++)				\
+		unsafe_get_user(__t->thread.TS_CKFPR(i), &buf[i], label);\
+	unsafe_get_user(__t->thread.ckfp_state.fpscr, &buf[i], failed);	\
+} while (0)
+
+#define unsafe_copy_ckvsx_from_user(task, from, label)	do {		\
+	struct task_struct *__t = task;					\
+	u64 __user *buf = (u64 __user *)from;				\
+	int i;								\
+									\
+	for (i = 0; i < ELF_NVSRHALFREG ; i++)				\
+		unsafe_get_user(__t->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET], \
+				&buf[i], label);			\
+} while (0)
+#endif
+#elif defined(CONFIG_PPC_FPU_REGS)
+
+#define unsafe_copy_fpr_to_user(to, task, label)		\
+	unsafe_copy_to_user(to, (task)->thread.fp_state.fpr,	\
+			    ELF_NFPREG * sizeof(double), label)
+
+#define unsafe_copy_fpr_from_user(task, from, label)			\
+	unsafe_copy_from_user((task)->thread.fp_state.fpr, from,	\
+			    ELF_NFPREG * sizeof(double), label)
+
+static 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));
+}
+
+static 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
+#define unsafe_copy_ckfpr_to_user(to, task, label)		\
+	unsafe_copy_to_user(to, (task)->thread.ckfp_state.fpr,	\
+			    ELF_NFPREG * sizeof(double), label)
+
+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));
+}
+
+static 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 */
+#else
+#define unsafe_copy_fpr_to_user(to, task, label) do { if (0) goto label;} while (0)
+
+#define unsafe_copy_fpr_from_user(task, from, label) do { if (0) goto label;} while (0)
+
+static inline unsigned long
+copy_fpr_to_user(void __user *to, struct task_struct *task)
+{
+	return 0;
+}
+
+static inline unsigned long
+copy_fpr_from_user(struct task_struct *task, void __user *from)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PPC64
+
+extern int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
+			      struct task_struct *tsk);
+
+#else /* CONFIG_PPC64 */
+
+static inline int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
+				     struct task_struct *tsk)
+{
+	return -EFAULT;
+}
+
+#endif /* !defined(CONFIG_PPC64) */
+
+void signal_fault(struct task_struct *tsk, struct pt_regs *regs,
+		  const char *where, void __user *ptr);
+
+#endif  /* _POWERPC_ARCH_SIGNAL_H */