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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/sh/include/asm/uaccess_32.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/sh/include/asm/uaccess_32.h')
-rw-r--r--kernel/arch/sh/include/asm/uaccess_32.h173
1 files changed, 173 insertions, 0 deletions
diff --git a/kernel/arch/sh/include/asm/uaccess_32.h b/kernel/arch/sh/include/asm/uaccess_32.h
new file mode 100644
index 000000000..c0de7ee35
--- /dev/null
+++ b/kernel/arch/sh/include/asm/uaccess_32.h
@@ -0,0 +1,173 @@
+/*
+ * User space memory access functions
+ *
+ * Copyright (C) 1999, 2002 Niibe Yutaka
+ * Copyright (C) 2003 - 2008 Paul Mundt
+ *
+ * Based on:
+ * MIPS implementation version 1.15 by
+ * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
+ * and i386 version.
+ */
+#ifndef __ASM_SH_UACCESS_32_H
+#define __ASM_SH_UACCESS_32_H
+
+#define __get_user_size(x,ptr,size,retval) \
+do { \
+ retval = 0; \
+ switch (size) { \
+ case 1: \
+ __get_user_asm(x, ptr, retval, "b"); \
+ break; \
+ case 2: \
+ __get_user_asm(x, ptr, retval, "w"); \
+ break; \
+ case 4: \
+ __get_user_asm(x, ptr, retval, "l"); \
+ break; \
+ default: \
+ __get_user_unknown(); \
+ break; \
+ } \
+} while (0)
+
+#ifdef CONFIG_MMU
+#define __get_user_asm(x, addr, err, insn) \
+({ \
+__asm__ __volatile__( \
+ "1:\n\t" \
+ "mov." insn " %2, %1\n\t" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:\n\t" \
+ "mov #0, %1\n\t" \
+ "mov.l 4f, %0\n\t" \
+ "jmp @%0\n\t" \
+ " mov %3, %0\n\t" \
+ ".balign 4\n" \
+ "4: .long 2b\n\t" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n\t" \
+ ".long 1b, 3b\n\t" \
+ ".previous" \
+ :"=&r" (err), "=&r" (x) \
+ :"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
+#else
+#define __get_user_asm(x, addr, err, insn) \
+do { \
+ __asm__ __volatile__ ( \
+ "mov." insn " %1, %0\n\t" \
+ : "=&r" (x) \
+ : "m" (__m(addr)) \
+ ); \
+} while (0)
+#endif /* CONFIG_MMU */
+
+extern void __get_user_unknown(void);
+
+#define __put_user_size(x,ptr,size,retval) \
+do { \
+ retval = 0; \
+ switch (size) { \
+ case 1: \
+ __put_user_asm(x, ptr, retval, "b"); \
+ break; \
+ case 2: \
+ __put_user_asm(x, ptr, retval, "w"); \
+ break; \
+ case 4: \
+ __put_user_asm(x, ptr, retval, "l"); \
+ break; \
+ case 8: \
+ __put_user_u64(x, ptr, retval); \
+ break; \
+ default: \
+ __put_user_unknown(); \
+ } \
+} while (0)
+
+#ifdef CONFIG_MMU
+#define __put_user_asm(x, addr, err, insn) \
+do { \
+ __asm__ __volatile__ ( \
+ "1:\n\t" \
+ "mov." insn " %1, %2\n\t" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:\n\t" \
+ "mov.l 4f, %0\n\t" \
+ "jmp @%0\n\t" \
+ " mov %3, %0\n\t" \
+ ".balign 4\n" \
+ "4: .long 2b\n\t" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n\t" \
+ ".long 1b, 3b\n\t" \
+ ".previous" \
+ : "=&r" (err) \
+ : "r" (x), "m" (__m(addr)), "i" (-EFAULT), \
+ "0" (err) \
+ : "memory" \
+ ); \
+} while (0)
+#else
+#define __put_user_asm(x, addr, err, insn) \
+do { \
+ __asm__ __volatile__ ( \
+ "mov." insn " %0, %1\n\t" \
+ : /* no outputs */ \
+ : "r" (x), "m" (__m(addr)) \
+ : "memory" \
+ ); \
+} while (0)
+#endif /* CONFIG_MMU */
+
+#if defined(CONFIG_CPU_LITTLE_ENDIAN)
+#define __put_user_u64(val,addr,retval) \
+({ \
+__asm__ __volatile__( \
+ "1:\n\t" \
+ "mov.l %R1,%2\n\t" \
+ "mov.l %S1,%T2\n\t" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:\n\t" \
+ "mov.l 4f,%0\n\t" \
+ "jmp @%0\n\t" \
+ " mov %3,%0\n\t" \
+ ".balign 4\n" \
+ "4: .long 2b\n\t" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n\t" \
+ ".long 1b, 3b\n\t" \
+ ".previous" \
+ : "=r" (retval) \
+ : "r" (val), "m" (__m(addr)), "i" (-EFAULT), "0" (retval) \
+ : "memory"); })
+#else
+#define __put_user_u64(val,addr,retval) \
+({ \
+__asm__ __volatile__( \
+ "1:\n\t" \
+ "mov.l %S1,%2\n\t" \
+ "mov.l %R1,%T2\n\t" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:\n\t" \
+ "mov.l 4f,%0\n\t" \
+ "jmp @%0\n\t" \
+ " mov %3,%0\n\t" \
+ ".balign 4\n" \
+ "4: .long 2b\n\t" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n\t" \
+ ".long 1b, 3b\n\t" \
+ ".previous" \
+ : "=r" (retval) \
+ : "r" (val), "m" (__m(addr)), "i" (-EFAULT), "0" (retval) \
+ : "memory"); })
+#endif
+
+extern void __put_user_unknown(void);
+
+#endif /* __ASM_SH_UACCESS_32_H */