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authorPaul Mackerras <paulus@samba.org>2006-08-31 15:45:48 +1000
committerPaul Mackerras <paulus@samba.org>2006-08-31 15:45:48 +1000
commitaa43f77939c97bf9d3580c6a5e71a5a40290e451 (patch)
tree095c0b8b3da4b6554a3f8ef4b39240a5d9216d4d /include/asm-i386
parent2818c5dec5e28d65d52afbb7695bbbafe6377ee5 (diff)
parent4c15343167b5febe7bb0ba96aad5bef42ae94d3b (diff)
Merge branch 'merge'
Diffstat (limited to 'include/asm-i386')
-rw-r--r--include/asm-i386/alternative.h20
-rw-r--r--include/asm-i386/mmzone.h2
-rw-r--r--include/asm-i386/rwlock.h14
-rw-r--r--include/asm-i386/spinlock.h17
-rw-r--r--include/asm-i386/unistd.h4
-rw-r--r--include/asm-i386/unwind.h1
6 files changed, 14 insertions, 44 deletions
diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h
index 96adbabec74..b01a7ec409c 100644
--- a/include/asm-i386/alternative.h
+++ b/include/asm-i386/alternative.h
@@ -88,9 +88,6 @@ static inline void alternatives_smp_switch(int smp) {}
/*
* Alternative inline assembly for SMP.
*
- * alternative_smp() takes two versions (SMP first, UP second) and is
- * for more complex stuff such as spinlocks.
- *
* The LOCK_PREFIX macro defined here replaces the LOCK and
* LOCK_PREFIX macros used everywhere in the source tree.
*
@@ -110,21 +107,6 @@ static inline void alternatives_smp_switch(int smp) {}
*/
#ifdef CONFIG_SMP
-#define alternative_smp(smpinstr, upinstr, args...) \
- asm volatile ("661:\n\t" smpinstr "\n662:\n" \
- ".section .smp_altinstructions,\"a\"\n" \
- " .align 4\n" \
- " .long 661b\n" /* label */ \
- " .long 663f\n" /* new instruction */ \
- " .byte 0x68\n" /* X86_FEATURE_UP */ \
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
- ".section .smp_altinstr_replacement,\"awx\"\n" \
- "663:\n\t" upinstr "\n" /* replacement */ \
- "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \
- ".previous" : args)
-
#define LOCK_PREFIX \
".section .smp_locks,\"a\"\n" \
" .align 4\n" \
@@ -133,8 +115,6 @@ static inline void alternatives_smp_switch(int smp) {}
"661:\n\tlock; "
#else /* ! CONFIG_SMP */
-#define alternative_smp(smpinstr, upinstr, args...) \
- asm volatile (upinstr : args)
#define LOCK_PREFIX ""
#endif
diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h
index e33e9f9e4c6..22cb07cc8f3 100644
--- a/include/asm-i386/mmzone.h
+++ b/include/asm-i386/mmzone.h
@@ -14,7 +14,7 @@ extern struct pglist_data *node_data[];
#ifdef CONFIG_X86_NUMAQ
#include <asm/numaq.h>
-#else /* summit or generic arch */
+#elif defined(CONFIG_ACPI_SRAT)/* summit or generic arch */
#include <asm/srat.h>
#endif
diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h
index 96b0bef2ea5..3ac1ba98b1b 100644
--- a/include/asm-i386/rwlock.h
+++ b/include/asm-i386/rwlock.h
@@ -21,22 +21,20 @@
#define RW_LOCK_BIAS_STR "0x01000000"
#define __build_read_lock_ptr(rw, helper) \
- alternative_smp("lock; subl $1,(%0)\n\t" \
+ asm volatile(LOCK_PREFIX " ; subl $1,(%0)\n\t" \
"jns 1f\n" \
"call " helper "\n\t" \
- "1:\n", \
- "subl $1,(%0)\n\t", \
+ "1:\n" \
:"a" (rw) : "memory")
#define __build_read_lock_const(rw, helper) \
- alternative_smp("lock; subl $1,%0\n\t" \
+ asm volatile(LOCK_PREFIX " ; subl $1,%0\n\t" \
"jns 1f\n" \
"pushl %%eax\n\t" \
"leal %0,%%eax\n\t" \
"call " helper "\n\t" \
"popl %%eax\n\t" \
- "1:\n", \
- "subl $1,%0\n\t", \
+ "1:\n" : \
"+m" (*(volatile int *)rw) : : "memory")
#define __build_read_lock(rw, helper) do { \
@@ -47,7 +45,7 @@
} while (0)
#define __build_write_lock_ptr(rw, helper) \
- alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
+ asm volatile(LOCK_PREFIX " ; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
"jz 1f\n" \
"call " helper "\n\t" \
"1:\n", \
@@ -55,7 +53,7 @@
:"a" (rw) : "memory")
#define __build_write_lock_const(rw, helper) \
- alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
+ asm volatile(LOCK_PREFIX " ; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
"jz 1f\n" \
"pushl %%eax\n\t" \
"leal %0,%%eax\n\t" \
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index d816c62a7a1..d1020363c41 100644
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -22,7 +22,7 @@
#define __raw_spin_lock_string \
"\n1:\t" \
- "lock ; decb %0\n\t" \
+ LOCK_PREFIX " ; decb %0\n\t" \
"jns 3f\n" \
"2:\t" \
"rep;nop\n\t" \
@@ -38,7 +38,7 @@
*/
#define __raw_spin_lock_string_flags \
"\n1:\t" \
- "lock ; decb %0\n\t" \
+ LOCK_PREFIX " ; decb %0\n\t" \
"jns 5f\n" \
"2:\t" \
"testl $0x200, %1\n\t" \
@@ -57,15 +57,9 @@
"jmp 4b\n" \
"5:\n\t"
-#define __raw_spin_lock_string_up \
- "\n\tdecb %0"
-
static inline void __raw_spin_lock(raw_spinlock_t *lock)
{
- alternative_smp(
- __raw_spin_lock_string,
- __raw_spin_lock_string_up,
- "+m" (lock->slock) : : "memory");
+ asm(__raw_spin_lock_string : "+m" (lock->slock) : : "memory");
}
/*
@@ -76,10 +70,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
#ifndef CONFIG_PROVE_LOCKING
static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
{
- alternative_smp(
- __raw_spin_lock_string_flags,
- __raw_spin_lock_string_up,
- "+m" (lock->slock) : "r" (flags) : "memory");
+ asm(__raw_spin_lock_string_flags : "+m" (lock->slock) : "r" (flags) : "memory");
}
#endif
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index fc1c8ddae14..d983b74e4d9 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -324,8 +324,6 @@
#define __NR_vmsplice 316
#define __NR_move_pages 317
-#ifdef __KERNEL__
-
#define NR_syscalls 318
/*
@@ -425,6 +423,8 @@ __asm__ volatile ("push %%ebp ; push %%ebx ; movl 4(%2),%%ebp ; " \
__syscall_return(type,__res); \
}
+#ifdef __KERNEL__
+
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h
index 69f0f1df672..4c1a0b96856 100644
--- a/include/asm-i386/unwind.h
+++ b/include/asm-i386/unwind.h
@@ -87,6 +87,7 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
#else
#define UNW_PC(frame) ((void)(frame), 0)
+#define UNW_SP(frame) ((void)(frame), 0)
static inline int arch_unw_user_mode(const void *info)
{