patch-2.4.10 linux/include/asm-i386/processor.h
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- Lines: 69
- Date:
Sun Sep 23 10:31:02 2001
- Orig file:
v2.4.9/linux/include/asm-i386/processor.h
- Orig date:
Sun Aug 12 13:28:00 2001
diff -u --recursive --new-file v2.4.9/linux/include/asm-i386/processor.h linux/include/asm-i386/processor.h
@@ -14,6 +14,7 @@
#include <asm/types.h>
#include <asm/sigcontext.h>
#include <asm/cpufeature.h>
+#include <linux/cache.h>
#include <linux/config.h>
#include <linux/threads.h>
@@ -52,7 +53,7 @@
unsigned long *pmd_quick;
unsigned long *pte_quick;
unsigned long pgtable_cache_sz;
-};
+} __attribute__((__aligned__(SMP_CACHE_BYTES)));
#define X86_VENDOR_INTEL 0
#define X86_VENDOR_CYRIX 1
@@ -88,6 +89,7 @@
#define cpu_has_fxsr (test_bit(X86_FEATURE_FXSR, boot_cpu_data.x86_capability))
#define cpu_has_xmm (test_bit(X86_FEATURE_XMM, boot_cpu_data.x86_capability))
#define cpu_has_fpu (test_bit(X86_FEATURE_FPU, boot_cpu_data.x86_capability))
+#define cpu_has_apic (test_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability))
extern char ignore_irq13;
@@ -391,9 +393,6 @@
0,{~0,} /* io permissions */ \
}
-#define INIT_MMAP \
-{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL }
-
#define INIT_TSS { \
0,0, /* back_link, __blh */ \
sizeof(init_stack) + (long) &init_stack, /* esp0 */ \
@@ -476,5 +475,33 @@
{
__asm__ __volatile__("rep;nop");
}
+
+/* Prefetch instructions for Pentium III and AMD Athlon */
+#ifdef CONFIG_MPENTIUMIII
+
+#define ARCH_HAS_PREFETCH
+extern inline void prefetch(const void *x)
+{
+ __asm__ __volatile__ ("prefetchnta (%0)" : : "r"(x));
+}
+
+#elif CONFIG_X86_USE_3DNOW
+
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+#define ARCH_HAS_SPINLOCK_PREFETCH
+
+extern inline void prefetch(const void *x)
+{
+ __asm__ __volatile__ ("prefetch (%0)" : : "r"(x));
+}
+
+extern inline void prefetchw(const void *x)
+{
+ __asm__ __volatile__ ("prefetchw (%0)" : : "r"(x));
+}
+#define spin_lock_prefetch(x) prefetchw(x)
+
+#endif
#endif /* __ASM_I386_PROCESSOR_H */
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