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-rw-r--r--vpx_ports/x86.h229
1 files changed, 116 insertions, 113 deletions
diff --git a/vpx_ports/x86.h b/vpx_ports/x86.h
index 9dd8c4b59..f1cf6265e 100644
--- a/vpx_ports/x86.h
+++ b/vpx_ports/x86.h
@@ -14,78 +14,77 @@
#include <stdlib.h>
#include "vpx_config.h"
-typedef enum
-{
- VPX_CPU_UNKNOWN = -1,
- VPX_CPU_AMD,
- VPX_CPU_AMD_OLD,
- VPX_CPU_CENTAUR,
- VPX_CPU_CYRIX,
- VPX_CPU_INTEL,
- VPX_CPU_NEXGEN,
- VPX_CPU_NSC,
- VPX_CPU_RISE,
- VPX_CPU_SIS,
- VPX_CPU_TRANSMETA,
- VPX_CPU_TRANSMETA_OLD,
- VPX_CPU_UMC,
- VPX_CPU_VIA,
-
- VPX_CPU_LAST
+typedef enum {
+ VPX_CPU_UNKNOWN = -1,
+ VPX_CPU_AMD,
+ VPX_CPU_AMD_OLD,
+ VPX_CPU_CENTAUR,
+ VPX_CPU_CYRIX,
+ VPX_CPU_INTEL,
+ VPX_CPU_NEXGEN,
+ VPX_CPU_NSC,
+ VPX_CPU_RISE,
+ VPX_CPU_SIS,
+ VPX_CPU_TRANSMETA,
+ VPX_CPU_TRANSMETA_OLD,
+ VPX_CPU_UMC,
+ VPX_CPU_VIA,
+
+ VPX_CPU_LAST
} vpx_cpu_t;
#if defined(__GNUC__) && __GNUC__
#if ARCH_X86_64
#define cpuid(func,ax,bx,cx,dx)\
- __asm__ __volatile__ (\
- "cpuid \n\t" \
- : "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) \
- : "a" (func));
+ __asm__ __volatile__ (\
+ "cpuid \n\t" \
+ : "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) \
+ : "a" (func));
#else
#define cpuid(func,ax,bx,cx,dx)\
- __asm__ __volatile__ (\
- "mov %%ebx, %%edi \n\t" \
- "cpuid \n\t" \
- "xchg %%edi, %%ebx \n\t" \
- : "=a" (ax), "=D" (bx), "=c" (cx), "=d" (dx) \
- : "a" (func));
+ __asm__ __volatile__ (\
+ "mov %%ebx, %%edi \n\t" \
+ "cpuid \n\t" \
+ "xchg %%edi, %%ebx \n\t" \
+ : "=a" (ax), "=D" (bx), "=c" (cx), "=d" (dx) \
+ : "a" (func));
#endif
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
#if ARCH_X86_64
#define cpuid(func,ax,bx,cx,dx)\
- asm volatile (\
- "xchg %rsi, %rbx \n\t" \
- "cpuid \n\t" \
- "movl %ebx, %edi \n\t" \
- "xchg %rsi, %rbx \n\t" \
- : "=a" (ax), "=D" (bx), "=c" (cx), "=d" (dx) \
- : "a" (func));
+ asm volatile (\
+ "xchg %rsi, %rbx \n\t" \
+ "cpuid \n\t" \
+ "movl %ebx, %edi \n\t" \
+ "xchg %rsi, %rbx \n\t" \
+ : "=a" (ax), "=D" (bx), "=c" (cx), "=d" (dx) \
+ : "a" (func));
#else
#define cpuid(func,ax,bx,cx,dx)\
- asm volatile (\
- "pushl %ebx \n\t" \
- "cpuid \n\t" \
- "movl %ebx, %edi \n\t" \
- "popl %ebx \n\t" \
- : "=a" (ax), "=D" (bx), "=c" (cx), "=d" (dx) \
- : "a" (func));
+ asm volatile (\
+ "pushl %ebx \n\t" \
+ "cpuid \n\t" \
+ "movl %ebx, %edi \n\t" \
+ "popl %ebx \n\t" \
+ : "=a" (ax), "=D" (bx), "=c" (cx), "=d" (dx) \
+ : "a" (func));
#endif
#else
#if ARCH_X86_64
void __cpuid(int CPUInfo[4], int info_type);
#pragma intrinsic(__cpuid)
#define cpuid(func,a,b,c,d) do{\
- int regs[4];\
- __cpuid(regs,func); a=regs[0]; b=regs[1]; c=regs[2]; d=regs[3];\
- } while(0)
+ int regs[4];\
+ __cpuid(regs,func); a=regs[0]; b=regs[1]; c=regs[2]; d=regs[3];\
+ } while(0)
#else
#define cpuid(func,a,b,c,d)\
- __asm mov eax, func\
- __asm cpuid\
- __asm mov a, eax\
- __asm mov b, ebx\
- __asm mov c, ecx\
- __asm mov d, edx
+ __asm mov eax, func\
+ __asm cpuid\
+ __asm mov a, eax\
+ __asm mov b, ebx\
+ __asm mov c, ecx\
+ __asm mov d, edx
#endif
#endif
@@ -100,47 +99,46 @@ void __cpuid(int CPUInfo[4], int info_type);
#endif
static int
-x86_simd_caps(void)
-{
- unsigned int flags = 0;
- unsigned int mask = ~0;
- unsigned int reg_eax, reg_ebx, reg_ecx, reg_edx;
- char *env;
- (void)reg_ebx;
+x86_simd_caps(void) {
+ unsigned int flags = 0;
+ unsigned int mask = ~0;
+ unsigned int reg_eax, reg_ebx, reg_ecx, reg_edx;
+ char *env;
+ (void)reg_ebx;
- /* See if the CPU capabilities are being overridden by the environment */
- env = getenv("VPX_SIMD_CAPS");
+ /* See if the CPU capabilities are being overridden by the environment */
+ env = getenv("VPX_SIMD_CAPS");
- if (env && *env)
- return (int)strtol(env, NULL, 0);
+ if (env && *env)
+ return (int)strtol(env, NULL, 0);
- env = getenv("VPX_SIMD_CAPS_MASK");
+ env = getenv("VPX_SIMD_CAPS_MASK");
- if (env && *env)
- mask = strtol(env, NULL, 0);
+ if (env && *env)
+ mask = strtol(env, NULL, 0);
- /* Ensure that the CPUID instruction supports extended features */
- cpuid(0, reg_eax, reg_ebx, reg_ecx, reg_edx);
+ /* Ensure that the CPUID instruction supports extended features */
+ cpuid(0, reg_eax, reg_ebx, reg_ecx, reg_edx);
- if (reg_eax < 1)
- return 0;
+ if (reg_eax < 1)
+ return 0;
- /* Get the standard feature flags */
- cpuid(1, reg_eax, reg_ebx, reg_ecx, reg_edx);
+ /* Get the standard feature flags */
+ cpuid(1, reg_eax, reg_ebx, reg_ecx, reg_edx);
- if (reg_edx & BIT(23)) flags |= HAS_MMX;
+ if (reg_edx & BIT(23)) flags |= HAS_MMX;
- if (reg_edx & BIT(25)) flags |= HAS_SSE; /* aka xmm */
+ if (reg_edx & BIT(25)) flags |= HAS_SSE; /* aka xmm */
- if (reg_edx & BIT(26)) flags |= HAS_SSE2; /* aka wmt */
+ if (reg_edx & BIT(26)) flags |= HAS_SSE2; /* aka wmt */
- if (reg_ecx & BIT(0)) flags |= HAS_SSE3;
+ if (reg_ecx & BIT(0)) flags |= HAS_SSE3;
- if (reg_ecx & BIT(9)) flags |= HAS_SSSE3;
+ if (reg_ecx & BIT(9)) flags |= HAS_SSSE3;
- if (reg_ecx & BIT(19)) flags |= HAS_SSE4_1;
+ if (reg_ecx & BIT(19)) flags |= HAS_SSE4_1;
- return flags & mask;
+ return flags & mask;
}
vpx_cpu_t vpx_x86_vendor(void);
@@ -150,21 +148,20 @@ unsigned __int64 __rdtsc(void);
#pragma intrinsic(__rdtsc)
#endif
static unsigned int
-x86_readtsc(void)
-{
+x86_readtsc(void) {
#if defined(__GNUC__) && __GNUC__
- unsigned int tsc;
- __asm__ __volatile__("rdtsc\n\t":"=a"(tsc):);
- return tsc;
+ unsigned int tsc;
+ __asm__ __volatile__("rdtsc\n\t":"=a"(tsc):);
+ return tsc;
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
- unsigned int tsc;
- asm volatile("rdtsc\n\t":"=a"(tsc):);
- return tsc;
+ unsigned int tsc;
+ asm volatile("rdtsc\n\t":"=a"(tsc):);
+ return tsc;
#else
#if ARCH_X86_64
- return (unsigned int)__rdtsc();
+ return (unsigned int)__rdtsc();
#else
- __asm rdtsc;
+ __asm rdtsc;
#endif
#endif
}
@@ -172,31 +169,29 @@ x86_readtsc(void)
#if defined(__GNUC__) && __GNUC__
#define x86_pause_hint()\
- __asm__ __volatile__ ("pause \n\t")
+ __asm__ __volatile__ ("pause \n\t")
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
#define x86_pause_hint()\
- asm volatile ("pause \n\t")
+ asm volatile ("pause \n\t")
#else
#if ARCH_X86_64
#define x86_pause_hint()\
- _mm_pause();
+ _mm_pause();
#else
#define x86_pause_hint()\
- __asm pause
+ __asm pause
#endif
#endif
#if defined(__GNUC__) && __GNUC__
static void
-x87_set_control_word(unsigned short mode)
-{
- __asm__ __volatile__("fldcw %0" : : "m"(*&mode));
+x87_set_control_word(unsigned short mode) {
+ __asm__ __volatile__("fldcw %0" : : "m"( *&mode));
}
static unsigned short
-x87_get_control_word(void)
-{
- unsigned short mode;
- __asm__ __volatile__("fstcw %0\n\t":"=m"(*&mode):);
+x87_get_control_word(void) {
+ unsigned short mode;
+ __asm__ __volatile__("fstcw %0\n\t":"=m"( *&mode):);
return mode;
}
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
@@ -210,7 +205,18 @@ x87_get_control_word(void)
{
unsigned short mode;
asm volatile("fstcw %0\n\t":"=m"(*&mode):);
- return mode;
+ return mode;
+}
+#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+static void
+x87_set_control_word(unsigned short mode) {
+ asm volatile("fldcw %0" : : "m"( *&mode));
+}
+static unsigned short
+x87_get_control_word(void) {
+ unsigned short mode;
+ asm volatile("fstcw %0\n\t":"=m"( *&mode):);
+ return mode;
}
#elif ARCH_X86_64
/* No fldcw intrinsics on Windows x64, punt to external asm */
@@ -220,25 +226,22 @@ extern unsigned short vpx_winx64_fstcw(void);
#define x87_get_control_word vpx_winx64_fstcw
#else
static void
-x87_set_control_word(unsigned short mode)
-{
- __asm { fldcw mode }
+x87_set_control_word(unsigned short mode) {
+ __asm { fldcw mode }
}
static unsigned short
-x87_get_control_word(void)
-{
- unsigned short mode;
- __asm { fstcw mode }
- return mode;
+x87_get_control_word(void) {
+ unsigned short mode;
+ __asm { fstcw mode }
+ return mode;
}
#endif
static unsigned short
-x87_set_double_precision(void)
-{
- unsigned short mode = x87_get_control_word();
- x87_set_control_word((mode&~0x300) | 0x200);
- return mode;
+x87_set_double_precision(void) {
+ unsigned short mode = x87_get_control_word();
+ x87_set_control_word((mode&~0x300) | 0x200);
+ return mode;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-08 22:21:14 +0000