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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /media/libvpx/vpx_ports/x86.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip |
Add m-esr52 at 52.6.0
Diffstat (limited to 'media/libvpx/vpx_ports/x86.h')
-rw-r--r-- | media/libvpx/vpx_ports/x86.h | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/media/libvpx/vpx_ports/x86.h b/media/libvpx/vpx_ports/x86.h new file mode 100644 index 000000000..7d93710c4 --- /dev/null +++ b/media/libvpx/vpx_ports/x86.h @@ -0,0 +1,303 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +#ifndef VPX_PORTS_X86_H_ +#define VPX_PORTS_X86_H_ +#include <stdlib.h> +#include "vpx_config.h" +#include "vpx/vpx_integer.h" + +#ifdef __cplusplus +extern "C" { +#endif + +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__ || defined(__ANDROID__) +#if ARCH_X86_64 +#define cpuid(func, func2, ax, bx, cx, dx)\ + __asm__ __volatile__ (\ + "cpuid \n\t" \ + : "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) \ + : "a" (func), "c" (func2)); +#else +#define cpuid(func, func2, 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), "c" (func2)); +#endif +#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC) /* end __GNUC__ or __ANDROID__*/ +#if ARCH_X86_64 +#define cpuid(func, func2, 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), "c" (func2)); +#else +#define cpuid(func, func2, 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), "c" (func2)); +#endif +#else /* end __SUNPRO__ */ +#if ARCH_X86_64 +#if defined(_MSC_VER) && _MSC_VER > 1500 +void __cpuidex(int CPUInfo[4], int info_type, int ecxvalue); +#pragma intrinsic(__cpuidex) +#define cpuid(func, func2, a, b, c, d) do {\ + int regs[4];\ + __cpuidex(regs, func, func2); \ + a = regs[0]; b = regs[1]; c = regs[2]; d = regs[3];\ + } while(0) +#else +void __cpuid(int CPUInfo[4], int info_type); +#pragma intrinsic(__cpuid) +#define cpuid(func, func2, 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) +#endif +#else +#define cpuid(func, func2, a, b, c, d)\ + __asm mov eax, func\ + __asm mov ecx, func2\ + __asm cpuid\ + __asm mov a, eax\ + __asm mov b, ebx\ + __asm mov c, ecx\ + __asm mov d, edx +#endif +#endif /* end others */ + +// NaCl has no support for xgetbv or the raw opcode. +#if !defined(__native_client__) && (defined(__i386__) || defined(__x86_64__)) +static INLINE uint64_t xgetbv(void) { + const uint32_t ecx = 0; + uint32_t eax, edx; + // Use the raw opcode for xgetbv for compatibility with older toolchains. + __asm__ volatile ( + ".byte 0x0f, 0x01, 0xd0\n" + : "=a"(eax), "=d"(edx) : "c" (ecx)); + return ((uint64_t)edx << 32) | eax; +} +#elif (defined(_M_X64) || defined(_M_IX86)) && \ + defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 160040219 // >= VS2010 SP1 +#include <immintrin.h> +#define xgetbv() _xgetbv(0) +#elif defined(_MSC_VER) && defined(_M_IX86) +static INLINE uint64_t xgetbv(void) { + uint32_t eax_, edx_; + __asm { + xor ecx, ecx // ecx = 0 + // Use the raw opcode for xgetbv for compatibility with older toolchains. + __asm _emit 0x0f __asm _emit 0x01 __asm _emit 0xd0 + mov eax_, eax + mov edx_, edx + } + return ((uint64_t)edx_ << 32) | eax_; +} +#else +#define xgetbv() 0U // no AVX for older x64 or unrecognized toolchains. +#endif + +#define HAS_MMX 0x01 +#define HAS_SSE 0x02 +#define HAS_SSE2 0x04 +#define HAS_SSE3 0x08 +#define HAS_SSSE3 0x10 +#define HAS_SSE4_1 0x20 +#define HAS_AVX 0x40 +#define HAS_AVX2 0x80 +#ifndef BIT +#define BIT(n) (1<<n) +#endif + +static INLINE int +x86_simd_caps(void) { + unsigned int flags = 0; + unsigned int mask = ~0; + unsigned int max_cpuid_val, 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"); + + if (env && *env) + return (int)strtol(env, NULL, 0); + + env = getenv("VPX_SIMD_CAPS_MASK"); + + if (env && *env) + mask = strtol(env, NULL, 0); + + /* Ensure that the CPUID instruction supports extended features */ + cpuid(0, 0, max_cpuid_val, reg_ebx, reg_ecx, reg_edx); + + if (max_cpuid_val < 1) + return 0; + + /* Get the standard feature flags */ + cpuid(1, 0, reg_eax, reg_ebx, reg_ecx, reg_edx); + + if (reg_edx & BIT(23)) flags |= HAS_MMX; + + if (reg_edx & BIT(25)) flags |= HAS_SSE; /* aka xmm */ + + if (reg_edx & BIT(26)) flags |= HAS_SSE2; /* aka wmt */ + + if (reg_ecx & BIT(0)) flags |= HAS_SSE3; + + if (reg_ecx & BIT(9)) flags |= HAS_SSSE3; + + if (reg_ecx & BIT(19)) flags |= HAS_SSE4_1; + + // bits 27 (OSXSAVE) & 28 (256-bit AVX) + if ((reg_ecx & (BIT(27) | BIT(28))) == (BIT(27) | BIT(28))) { + if ((xgetbv() & 0x6) == 0x6) { + flags |= HAS_AVX; + + if (max_cpuid_val >= 7) { + /* Get the leaf 7 feature flags. Needed to check for AVX2 support */ + cpuid(7, 0, reg_eax, reg_ebx, reg_ecx, reg_edx); + + if (reg_ebx & BIT(5)) flags |= HAS_AVX2; + } + } + } + + return flags & mask; +} + +#if ARCH_X86_64 && defined(_MSC_VER) +unsigned __int64 __rdtsc(void); +#pragma intrinsic(__rdtsc) +#endif +static INLINE unsigned int +x86_readtsc(void) { +#if defined(__GNUC__) && __GNUC__ + 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; +#else +#if ARCH_X86_64 + return (unsigned int)__rdtsc(); +#else + __asm rdtsc; +#endif +#endif +} + + +#if defined(__GNUC__) && __GNUC__ +#define x86_pause_hint()\ + __asm__ __volatile__ ("pause \n\t") +#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC) +#define x86_pause_hint()\ + asm volatile ("pause \n\t") +#else +#if ARCH_X86_64 +#define x86_pause_hint()\ + _mm_pause(); +#else +#define x86_pause_hint()\ + __asm pause +#endif +#endif + +#if defined(__GNUC__) && __GNUC__ +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 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 */ +extern void vpx_winx64_fldcw(unsigned short mode); +extern unsigned short vpx_winx64_fstcw(void); +#define x87_set_control_word vpx_winx64_fldcw +#define x87_get_control_word vpx_winx64_fstcw +#else +static void +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; +} +#endif + +static INLINE unsigned int +x87_set_double_precision(void) { + unsigned int mode = x87_get_control_word(); + x87_set_control_word((mode&~0x300) | 0x200); + return mode; +} + + +extern void vpx_reset_mmx_state(void); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // VPX_PORTS_X86_H_ |