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Diffstat (limited to 'include/asm-x86/processor_32.h')
-rw-r--r--include/asm-x86/processor_32.h31
1 files changed, 28 insertions, 3 deletions
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 3845fe72383e..83800e7496ee 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -595,7 +595,9 @@ static inline void load_esp0(struct tss_struct *tss, struct thread_struct *threa
* clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx
* resulting in stale register contents being returned.
*/
-static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx)
+static inline void cpuid(unsigned int op,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
{
*eax = op;
*ecx = 0;
@@ -603,8 +605,9 @@ static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx,
}
/* Some CPUID calls want 'count' to be placed in ecx */
-static inline void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx,
- int *edx)
+static inline void cpuid_count(unsigned int op, int count,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
{
*eax = op;
*ecx = count;
@@ -674,6 +677,17 @@ static inline unsigned int cpuid_edx(unsigned int op)
#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n"
#define K7_NOP8 K7_NOP7 ASM_NOP1
+/* P6 nops */
+/* uses eax dependencies (Intel-recommended choice) */
+#define P6_NOP1 GENERIC_NOP1
+#define P6_NOP2 ".byte 0x66,0x90\n"
+#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
+#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n"
+#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n"
+#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n"
+#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n"
+#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n"
+
#ifdef CONFIG_MK8
#define ASM_NOP1 K8_NOP1
#define ASM_NOP2 K8_NOP2
@@ -692,6 +706,17 @@ static inline unsigned int cpuid_edx(unsigned int op)
#define ASM_NOP6 K7_NOP6
#define ASM_NOP7 K7_NOP7
#define ASM_NOP8 K7_NOP8
+#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \
+ defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \
+ defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4)
+#define ASM_NOP1 P6_NOP1
+#define ASM_NOP2 P6_NOP2
+#define ASM_NOP3 P6_NOP3
+#define ASM_NOP4 P6_NOP4
+#define ASM_NOP5 P6_NOP5
+#define ASM_NOP6 P6_NOP6
+#define ASM_NOP7 P6_NOP7
+#define ASM_NOP8 P6_NOP8
#else
#define ASM_NOP1 GENERIC_NOP1
#define ASM_NOP2 GENERIC_NOP2