---

yaml --- r: 339147 b: refs/heads/master c: 7ac468b h: refs/heads/master i: 339145: 1cf149d 339143: 6f78840 v: v3
git-mirror · Nov 29, 2012 · 9c9d193 · 9c9d193
1 parent 48b56fd
commit 9c9d193
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Showing 6 changed files with 3 additions and 43 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d55c5a93db2d5fa95f233ab153f594365d95b777
+refs/heads/master: 7ac468b1300f35143a9b5b100e3970ca7ae1d9b8
diff --git a/trunk/arch/x86/Kconfig b/trunk/arch/x86/Kconfig
@@ -171,13 +171,8 @@ config ARCH_MAY_HAVE_PC_FDC
 	def_bool y
 	depends on ISA_DMA_API
 
-config RWSEM_GENERIC_SPINLOCK
-	def_bool y
-	depends on !X86_XADD
-
 config RWSEM_XCHGADD_ALGORITHM
 	def_bool y
-	depends on X86_XADD
 
 config GENERIC_CALIBRATE_DELAY
 	def_bool y

diff --git a/trunk/arch/x86/Kconfig.cpu b/trunk/arch/x86/Kconfig.cpu
@@ -304,9 +304,6 @@ config X86_L1_CACHE_SHIFT
 	default "4" if MELAN || M486 || MGEODEGX1
 	default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
 
-config X86_XADD
-	def_bool y
-
 config X86_PPRO_FENCE
 	bool "PentiumPro memory ordering errata workaround"
 	depends on M686 || M586MMX || M586TSC || M586 || M486 || MGEODEGX1

diff --git a/trunk/arch/x86/include/asm/atomic.h b/trunk/arch/x86/include/asm/atomic.h
@@ -172,23 +172,7 @@ static inline int atomic_add_negative(int i, atomic_t *v)
  */
 static inline int atomic_add_return(int i, atomic_t *v)
 {
-#ifdef CONFIG_M386
-	int __i;
-	unsigned long flags;
-	if (unlikely(boot_cpu_data.x86 <= 3))
-		goto no_xadd;
-#endif
-	/* Modern 486+ processor */
 	return i + xadd(&v->counter, i);
-
-#ifdef CONFIG_M386
-no_xadd: /* Legacy 386 processor */
-	raw_local_irq_save(flags);
-	__i = atomic_read(v);
-	atomic_set(v, i + __i);
-	raw_local_irq_restore(flags);
-	return i + __i;
-#endif
 }
 
 /**

diff --git a/trunk/arch/x86/include/asm/local.h b/trunk/arch/x86/include/asm/local.h
@@ -124,27 +124,11 @@ static inline int local_add_negative(long i, local_t *l)
  */
 static inline long local_add_return(long i, local_t *l)
 {
-	long __i;
-#ifdef CONFIG_M386
-	unsigned long flags;
-	if (unlikely(boot_cpu_data.x86 <= 3))
-		goto no_xadd;
-#endif
-	/* Modern 486+ processor */
-	__i = i;
+	long __i = i;
 	asm volatile(_ASM_XADD "%0, %1;"
 		     : "+r" (i), "+m" (l->a.counter)
 		     : : "memory");
 	return i + __i;
-
-#ifdef CONFIG_M386
-no_xadd: /* Legacy 386 processor */
-	local_irq_save(flags);
-	__i = local_read(l);
-	local_set(l, i + __i);
-	local_irq_restore(flags);
-	return i + __i;
-#endif
 }
 
 static inline long local_sub_return(long i, local_t *l)

diff --git a/trunk/arch/x86/um/Kconfig b/trunk/arch/x86/um/Kconfig
@@ -31,7 +31,7 @@ config X86_64
 	select MODULES_USE_ELF_RELA
 
 config RWSEM_XCHGADD_ALGORITHM
-	def_bool X86_XADD && 64BIT
+	def_bool 64BIT
 
 config RWSEM_GENERIC_SPINLOCK
 	def_bool !RWSEM_XCHGADD_ALGORITHM