X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fcpu.h;h=40857fb245b10c9bcf89529ad571a13e8c74d3b2;hb=1bb67abf3c6816b6f2c22eaeb1bdc355c4c95a46;hp=7bd5dfe97224bf44b102f9f4349c53d9ebf40921;hpb=690ce8672c090709924b924af1e49ffc38d8f00c;p=vpp.git diff --git a/src/vppinfra/cpu.h b/src/vppinfra/cpu.h index 7bd5dfe9722..40857fb245b 100644 --- a/src/vppinfra/cpu.h +++ b/src/vppinfra/cpu.h @@ -19,34 +19,31 @@ #include #include -/* - * multiarchitecture support. Adding new entry will produce - * new graph node function variant optimized for specific cpu - * microarchitecture. - * Order is important for runtime selection, as 1st match wins... - */ - -#if __x86_64__ && CLIB_DEBUG == 0 -#define foreach_march_variant(macro, x) \ - macro(avx2, x, "arch=core-avx2") -#else -#define foreach_march_variant(macro, x) -#endif - - -#if __GNUC__ > 4 && !__clang__ && CLIB_DEBUG == 0 -#define CLIB_CPU_OPTIMIZED __attribute__ ((optimize ("O3"))) +#if defined(__x86_64__) +#define foreach_march_variant \ + _ (hsw, "Intel Haswell") \ + _ (trm, "Intel Tremont") \ + _ (skx, "Intel Skylake (server) / Cascade Lake") \ + _ (icl, "Intel Ice Lake") +#elif defined(__aarch64__) +#define foreach_march_variant \ + _ (octeontx2, "Marvell Octeon TX2") \ + _ (thunderx2t99, "Marvell ThunderX2 T99") \ + _ (qdf24xx, "Qualcomm CentriqTM 2400") \ + _ (cortexa72, "ARM Cortex-A72") \ + _ (neoversen1, "ARM Neoverse N1") #else -#define CLIB_CPU_OPTIMIZED +#define foreach_march_variant #endif - -#define CLIB_MULTIARCH_ARCH_CHECK(arch, fn, tgt) \ - if (clib_cpu_supports_ ## arch()) \ - return & fn ## _ ##arch; - -/* FIXME to be removed */ -#define CLIB_MULTIARCH_SELECT_FN(fn,...) +typedef enum +{ + CLIB_MARCH_VARIANT_TYPE = 0, +#define _(s, n) CLIB_MARCH_VARIANT_TYPE_##s, + foreach_march_variant +#undef _ + CLIB_MARCH_TYPE_N_VARIANTS +} clib_march_variant_type_t; #ifdef CLIB_MARCH_VARIANT #define __CLIB_MULTIARCH_FN(a,b) a##_##b @@ -114,26 +111,30 @@ _CLIB_MARCH_FN_REGISTRATION(fn) clib_march_fn_registration *fn##_march_fn_registrations = 0; \ _CLIB_MARCH_FN_REGISTRATION(fn) #endif -#define foreach_x86_64_flags \ -_ (sse3, 1, ecx, 0) \ -_ (pclmulqdq, 1, ecx, 1) \ -_ (ssse3, 1, ecx, 9) \ -_ (sse41, 1, ecx, 19) \ -_ (sse42, 1, ecx, 20) \ -_ (avx, 1, ecx, 28) \ -_ (rdrand, 1, ecx, 30) \ -_ (avx2, 7, ebx, 5) \ -_ (rtm, 7, ebx, 11) \ -_ (pqm, 7, ebx, 12) \ -_ (pqe, 7, ebx, 15) \ -_ (avx512f, 7, ebx, 16) \ -_ (rdseed, 7, ebx, 18) \ -_ (x86_aes, 1, ecx, 25) \ -_ (sha, 7, ebx, 29) \ -_ (vaes, 7, ecx, 9) \ -_ (vpclmulqdq, 7, ecx, 10) \ -_ (invariant_tsc, 0x80000007, edx, 8) - +#define foreach_x86_64_flags \ + _ (sse3, 1, ecx, 0) \ + _ (pclmulqdq, 1, ecx, 1) \ + _ (ssse3, 1, ecx, 9) \ + _ (sse41, 1, ecx, 19) \ + _ (sse42, 1, ecx, 20) \ + _ (avx, 1, ecx, 28) \ + _ (rdrand, 1, ecx, 30) \ + _ (avx2, 7, ebx, 5) \ + _ (rtm, 7, ebx, 11) \ + _ (pqm, 7, ebx, 12) \ + _ (pqe, 7, ebx, 15) \ + _ (avx512f, 7, ebx, 16) \ + _ (rdseed, 7, ebx, 18) \ + _ (x86_aes, 1, ecx, 25) \ + _ (sha, 7, ebx, 29) \ + _ (vaes, 7, ecx, 9) \ + _ (vpclmulqdq, 7, ecx, 10) \ + _ (avx512_vnni, 7, ecx, 11) \ + _ (avx512_bitalg, 7, ecx, 12) \ + _ (avx512_vpopcntdq, 7, ecx, 14) \ + _ (movdiri, 7, ecx, 27) \ + _ (movdir64b, 7, ecx, 28) \ + _ (invariant_tsc, 0x80000007, edx, 8) #define foreach_aarch64_flags \ _ (fp, 0) \ @@ -160,21 +161,8 @@ _ (asimddp, 20) \ _ (sha512, 21) \ _ (sve, 22) -static inline u32 -clib_get_current_cpu_id () -{ - unsigned cpu, node; - syscall (__NR_getcpu, &cpu, &node, 0); - return cpu; -} - -static inline u32 -clib_get_current_numa_node () -{ - unsigned cpu, node; - syscall (__NR_getcpu, &cpu, &node, 0); - return node; -} +u32 clib_get_current_cpu_id (); +u32 clib_get_current_numa_node (); #if defined(__x86_64__) #include "cpuid.h" @@ -191,6 +179,7 @@ clib_get_cpuid (const u32 lev, u32 * eax, u32 * ebx, u32 * ecx, u32 * edx) return 1; } +typedef int (*clib_cpu_supports_func_t) (); #define _(flag, func, reg, bit) \ static inline int \ @@ -245,15 +234,31 @@ clib_cpu_supports_aes () } static inline int -clib_cpu_march_priority_avx512 () +clib_cpu_march_priority_icl () +{ + if (clib_cpu_supports_avx512_bitalg ()) + return 200; + return -1; +} + +static inline int +clib_cpu_march_priority_skx () { if (clib_cpu_supports_avx512f ()) - return 20; + return 100; + return -1; +} + +static inline int +clib_cpu_march_priority_trm () +{ + if (clib_cpu_supports_movdiri ()) + return 60; return -1; } static inline int -clib_cpu_march_priority_avx2 () +clib_cpu_march_priority_hsw () { if (clib_cpu_supports_avx2 ()) return 50; @@ -316,8 +321,10 @@ clib_cpu_part () return part; } -#define AARCH64_CPU_IMPLEMENTER_THUNERDERX2 0x43 -#define AARCH64_CPU_PART_THUNERDERX2 0x0af +#define AARCH64_CPU_IMPLEMENTER_CAVIUM 0x43 +#define AARCH64_CPU_PART_THUNDERX2 0x0af +#define AARCH64_CPU_PART_OCTEONTX2T96 0x0b2 +#define AARCH64_CPU_PART_OCTEONTX2T98 0x0b1 #define AARCH64_CPU_IMPLEMENTER_QDF24XX 0x51 #define AARCH64_CPU_PART_QDF24XX 0xc00 #define AARCH64_CPU_IMPLEMENTER_CORTEXA72 0x41 @@ -325,11 +332,21 @@ clib_cpu_part () #define AARCH64_CPU_IMPLEMENTER_NEOVERSEN1 0x41 #define AARCH64_CPU_PART_NEOVERSEN1 0xd0c +static inline int +clib_cpu_march_priority_octeontx2 () +{ + if ((AARCH64_CPU_IMPLEMENTER_CAVIUM == clib_cpu_implementer ()) && + ((AARCH64_CPU_PART_OCTEONTX2T96 == clib_cpu_part ()) + || AARCH64_CPU_PART_OCTEONTX2T98 == clib_cpu_part ())) + return 20; + return -1; +} + static inline int clib_cpu_march_priority_thunderx2t99 () { - if ((AARCH64_CPU_IMPLEMENTER_THUNERDERX2 == clib_cpu_implementer ()) && - (AARCH64_CPU_PART_THUNERDERX2 == clib_cpu_part ())) + if ((AARCH64_CPU_IMPLEMENTER_CAVIUM == clib_cpu_implementer ()) && + (AARCH64_CPU_PART_THUNDERX2 == clib_cpu_part ())) return 20; return -1; } @@ -380,19 +397,18 @@ CLIB_MARCH_SFX(fn ## _march_constructor) (void) \ } \ #ifndef CLIB_MARCH_VARIANT -#define CLIB_MARCH_FN(fn, rtype, _args...) \ - static rtype CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (fn ## _ma)(_args); \ - rtype (*fn ## _selected) (_args) = & CLIB_MARCH_SFX (fn ## _ma); \ - int fn ## _selected_priority = 0; \ - static inline rtype CLIB_CPU_OPTIMIZED \ - CLIB_MARCH_SFX (fn ## _ma)(_args) +#define CLIB_MARCH_FN(fn, rtype, _args...) \ + static rtype CLIB_MARCH_SFX (fn##_ma) (_args); \ + rtype (*fn##_selected) (_args) = &CLIB_MARCH_SFX (fn##_ma); \ + int fn##_selected_priority = 0; \ + static inline rtype CLIB_MARCH_SFX (fn##_ma) (_args) #else -#define CLIB_MARCH_FN(fn, rtype, _args...) \ - static rtype CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (fn ## _ma)(_args); \ - extern rtype (*fn ## _selected) (_args); \ - extern int fn ## _selected_priority; \ - CLIB_MARCH_FN_CONSTRUCTOR (fn) \ - static rtype CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (fn ## _ma)(_args) +#define CLIB_MARCH_FN(fn, rtype, _args...) \ + static rtype CLIB_MARCH_SFX (fn##_ma) (_args); \ + extern rtype (*fn##_selected) (_args); \ + extern int fn##_selected_priority; \ + CLIB_MARCH_FN_CONSTRUCTOR (fn) \ + static rtype CLIB_MARCH_SFX (fn##_ma) (_args) #endif #define CLIB_MARCH_FN_SELECT(fn) (* fn ## _selected)