x86/asm changes for v3.1

index b3ed1e1..9412d65 100644
@@ -3,9 +3,11 @@
 
 #ifdef __ASSEMBLY__
 # define __ASM_FORM(x)	x
+# define __ASM_FORM_COMMA(x) x,
 # define __ASM_EX_SEC	.section __ex_table, "a"
 #else
 # define __ASM_FORM(x)	" " #x " "
+# define __ASM_FORM_COMMA(x) " " #x ","
 # define __ASM_EX_SEC	" .section __ex_table,\"a\"\n"
 #endif
 

@@ -15,7 +17,8 @@
 # define __ASM_SEL(a,b) __ASM_FORM(b)
 #endif
 
-#define __ASM_SIZE(inst)	__ASM_SEL(inst##l, inst##q)
+#define __ASM_SIZE(inst, ...)	__ASM_SEL(inst##l##__VA_ARGS__, \
+					  inst##q##__VA_ARGS__)
 #define __ASM_REG(reg)		__ASM_SEL(e##reg, r##reg)
 
 #define _ASM_PTR	__ASM_SEL(.long, .quad)

170 lines not on this page · raw message

index 2c6fc9e..3b629f4 100644
@@ -1,5 +1,6 @@
 #ifdef __ASSEMBLY__
 
+#include <asm/asm.h>
 #include <asm/dwarf2.h>
 
 /* The annotation hides the frame from the unwinder and makes it look

@@ -7,13 +8,13 @@
    frame pointer later */
 #ifdef CONFIG_FRAME_POINTER
 	.macro FRAME
-	pushl_cfi %ebp
-	CFI_REL_OFFSET ebp,0
-	movl %esp,%ebp
+	__ASM_SIZE(push,_cfi)	%__ASM_REG(bp)
+	CFI_REL_OFFSET		__ASM_REG(bp), 0
+	__ASM_SIZE(mov)		%__ASM_REG(sp), %__ASM_REG(bp)
 	.endm
 	.macro ENDFRAME
-	popl_cfi %ebp
-	CFI_RESTORE ebp
+	__ASM_SIZE(pop,_cfi)	%__ASM_REG(bp)
+	CFI_RESTORE		__ASM_REG(bp)
 	.endm
 #else
 	.macro FRAME

49 lines not on this page · raw message

index cd84f72..5e64171 100644
@@ -162,7 +162,7 @@
 #define GDT_ENTRY_DEFAULT_USER32_CS 4
 #define GDT_ENTRY_DEFAULT_USER_DS 5
 #define GDT_ENTRY_DEFAULT_USER_CS 6
-#define __USER32_CS   (GDT_ENTRY_DEFAULT_USER32_CS * 8 + 3)
+#define __USER32_CS   (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
 #define __USER32_DS	__USER_DS
 
 #define GDT_ENTRY_TSS 8	/* needs two entries */

index 3089f70..e9e51f7 100644
@@ -2,7 +2,6 @@
 #define _ASM_X86_SPINLOCK_H
 
 #include <asm/atomic.h>
-#include <asm/rwlock.h>
 #include <asm/page.h>
 #include <asm/processor.h>
 #include <linux/compiler.h>

@@ -234,7 +233,7 @@ static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
  */
 static inline int arch_read_can_lock(arch_rwlock_t *lock)
 {
-	return (int)(lock)->lock > 0;
+	return lock->lock > 0;
 }
 
 /**

@@ -243,12 +242,12 @@ static inline int arch_read_can_lock(arch_rwlock_t *lock)
  */
 static inline int arch_write_can_lock(arch_rwlock_t *lock)
 {
-	return (lock)->lock == RW_LOCK_BIAS;
+	return lock->write == WRITE_LOCK_CMP;
 }
 
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
-	asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t"
+	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t"
 		     "jns 1f\n"
 		     "call __read_lock_failed\n\t"
 		     "1:\n"

@@ -257,47 +256,55 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
 
 static inline void arch_write_lock(arch_rwlock_t *rw)
 {
-	asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t"
+	asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t"
 		     "jz 1f\n"
 		     "call __write_lock_failed\n\t"
 		     "1:\n"
-		     ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory");
+		     ::LOCK_PTR_REG (&rw->write), "i" (RW_LOCK_BIAS)
+		     : "memory");
 }
 
 static inline int arch_read_trylock(arch_rwlock_t *lock)
 {
-	atomic_t *count = (atomic_t *)lock;
+	READ_LOCK_ATOMIC(t) *count = (READ_LOCK_ATOMIC(t) *)lock;
 
-	if (atomic_dec_return(count) >= 0)
+	if (READ_LOCK_ATOMIC(dec_return)(count) >= 0)
 		return 1;
-	atomic_inc(count);
+	READ_LOCK_ATOMIC(inc)(count);
 	return 0;
 }
 
 static inline int arch_write_trylock(arch_rwlock_t *lock)
 {
-	atomic_t *count = (atomic_t *)lock;
+	atomic_t *count = (atomic_t *)&lock->write;
 
-	if (atomic_sub_and_test(RW_LOCK_BIAS, count))
+	if (atomic_sub_and_test(WRITE_LOCK_CMP, count))
 		return 1;
-	atomic_add(RW_LOCK_BIAS, count);
+	atomic_add(WRITE_LOCK_CMP, count);
 	return 0;
 }
 
 static inline void arch_read_unlock(arch_rwlock_t *rw)
 {
-	asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
+	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0"
+		     :"+m" (rw->lock) : : "memory");
 }
 
 static inline void arch_write_unlock(arch_rwlock_t *rw)
 {
-	asm volatile(LOCK_PREFIX "addl %1, %0"
-		     : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory");
+	asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0"
+		     : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory");
 }
 
 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
 
+#undef READ_LOCK_SIZE
+#undef READ_LOCK_ATOMIC
+#undef WRITE_LOCK_ADD
+#undef WRITE_LOCK_SUB
+#undef WRITE_LOCK_CMP
+
 #define arch_spin_relax(lock)	cpu_relax()
 #define arch_read_relax(lock)	cpu_relax()
 #define arch_write_relax(lock)	cpu_relax()

index dcb48b2..7c7a486 100644
@@ -11,10 +11,6 @@ typedef struct arch_spinlock {
 
 #define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
 
-typedef struct {
-	unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED		{ RW_LOCK_BIAS }
+#include <asm/rwlock.h>
 
 #endif /* _ASM_X86_SPINLOCK_TYPES_H */