From patchwork Tue Oct 19 10:47:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aman Kumar X-Patchwork-Id: 102184 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 58CE9A0C43; Tue, 19 Oct 2021 12:47:50 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 20A7140683; Tue, 19 Oct 2021 12:47:50 +0200 (CEST) Received: from mail-pg1-f170.google.com (mail-pg1-f170.google.com [209.85.215.170]) by mails.dpdk.org (Postfix) with ESMTP id 880664003E for ; Tue, 19 Oct 2021 12:47:48 +0200 (CEST) Received: by mail-pg1-f170.google.com with SMTP id j190so12226923pgd.0 for ; Tue, 19 Oct 2021 03:47:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vvdntech-in.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=saGn3NSGaCbQq9QQrQYYKLU7vDpBqZkH3HzkulVL2lY=; b=Jg4sj2r6VbdMmHs/MEsT3cL5TjSXR1K3UoAndGDwLjbCyqSIvStnHnwYCqmhvHywVm 9h87TAw+HUhCrztzBCf/VnXjkbXScjzqEY8lScucJaiQfOyGrvqh3EsoYxuRW/jCp0Iq +DeplvtIegcGn41YYRiPCuZgWoFVJsRHoUgkG2nR7lzSmBQKtEjJDAiJqSNc/hfDeLbK ldOZqWtXbyTC4iOWTc1diXpaE9tQg4E+xEK2U/C+RY//HJ4vO1tdvRZnCRoHUji6AISK b5fZkJT7W+PHD8xlDaztxOTDEyefehOwR+o+TEddW7EM1VKf9qq6tKYPrnu7Nk1WcteH Z8ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=saGn3NSGaCbQq9QQrQYYKLU7vDpBqZkH3HzkulVL2lY=; b=Ooh7FmPWTKn7A3H5xK+L3doPCbeSrVQbn9o3FEjodgwd8Sb5W/XEjACKRgHv1Fn6nb Tth2XpGVuPMNhnQy34WAAUj+HeXsn3T5V7+ia9TYI1CCY/MWqwo4c3w+X8QvxxdHuGoQ vnl6w7NyDpffENdBpsTRdBC9VcGLLI0jOaXUDguGrp5WyiJINTxmW36PzC5cPZQFErFg jJqBssjsCZPwrAT2orYruEmPqrhyqDQaAigdNKQfO8eCj85FqTUPZyHfxT9VAPHcDxSF 55sX+6WEYX34985ydPNc6XSmilLCOM6371hVCOC7xbsB2TcBrkWNuTWI/8O42iW5z5dN Qm1w== X-Gm-Message-State: AOAM532/lUtDag/v9dHl5au+JWvo7cW+ErJZl5IsPgLYt1u66xTEIkkl UXxTwPKwZ4oIfpd5NAgUnsn3SdPjKkHP+Q== X-Google-Smtp-Source: ABdhPJzv3eSpId4YydJCsiXUHgbOcnvMpfLb5H5eU/kgKAGXDqt3iwooxcV/bRd25Lm9un/CV+dJOA== X-Received: by 2002:aa7:978b:0:b0:44c:abf1:a8b8 with SMTP id o11-20020aa7978b000000b0044cabf1a8b8mr34926315pfp.35.1634640466866; Tue, 19 Oct 2021 03:47:46 -0700 (PDT) Received: from 470--5GDC--BLR.vvdntech.com ([103.214.233.63]) by smtp.gmail.com with ESMTPSA id g186sm16033951pfb.53.2021.10.19.03.47.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Oct 2021 03:47:46 -0700 (PDT) From: Aman Kumar To: dev@dpdk.org Cc: rasland@nvidia.com, asafp@nvidia.com, shys@nvidia.com, viacheslavo@nvidia.com, akozyrev@nvidia.com, matan@nvidia.com, anatoly.burakov@intel.com, keesang.song@amd.com, aman.kumar@vvdntech.in, jerinjacobk@gmail.com Date: Tue, 19 Oct 2021 16:17:23 +0530 Message-Id: <20211019104724.19416-1-aman.kumar@vvdntech.in> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210823084411.29592-1-aman.kumar@vvdntech.in> References: <20210823084411.29592-1-aman.kumar@vvdntech.in> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v2 1/2] lib/eal: add amd epyc2 memcpy routine to eal X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch provides rte_memcpy* calls optimized for AMD EPYC platforms. Use config/x86/x86_amd_epyc_linux_gcc as cross-file with meson to build dpdk for AMD EPYC platforms. Signed-off-by: Aman Kumar --- config/x86/meson.build | 7 + config/x86/x86_amd_epyc_linux_gcc | 16 + lib/eal/x86/include/rte_memcpy.h | 502 ++++++++++++++++++++++++++++++ 3 files changed, 525 insertions(+) create mode 100644 config/x86/x86_amd_epyc_linux_gcc diff --git a/config/x86/meson.build b/config/x86/meson.build index 29f3dea181..598b0e62ce 100644 --- a/config/x86/meson.build +++ b/config/x86/meson.build @@ -72,3 +72,10 @@ endif dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64) dpdk_conf.set('RTE_MAX_LCORE', 128) dpdk_conf.set('RTE_MAX_NUMA_NODES', 32) + +if meson.is_cross_build() + if meson.get_cross_property('platform') == 'amd-epyc' + dpdk_conf.set('RTE_MAX_LCORE', 512) + dpdk_conf.set('RTE_MEMCPY_AMDEPYC', 1) + endif +endif diff --git a/config/x86/x86_amd_epyc_linux_gcc b/config/x86/x86_amd_epyc_linux_gcc new file mode 100644 index 0000000000..0b2453135f --- /dev/null +++ b/config/x86/x86_amd_epyc_linux_gcc @@ -0,0 +1,16 @@ +[binaries] +c = 'x86_64-linux-gnu-gcc' +cpp = 'x86_64-linux-gnu-g++' +ld = 'x86_64-linux-gnu-ld' +ar = 'x86_64-linux-gnu-ar' +strip = 'x86_64-linux-gnu-strip' +pkgconfig = 'x86_64-linux-gnu-pkg-config' + +[host_machine] +system = 'linux' +cpu_family = 'x86_64' +cpu = 'native' +endian = 'little' + +[properties] +platform = 'amd-epyc' diff --git a/lib/eal/x86/include/rte_memcpy.h b/lib/eal/x86/include/rte_memcpy.h index 79f381dd9b..8f66c115e3 100644 --- a/lib/eal/x86/include/rte_memcpy.h +++ b/lib/eal/x86/include/rte_memcpy.h @@ -368,6 +368,498 @@ rte_mov128blocks(uint8_t *dst, const uint8_t *src, size_t n) } } +#if defined RTE_MEMCPY_AMDEPYC + +/** + * Copy 16 bytes from one location to another, + * with temporal stores + */ +static __rte_always_inline void +rte_copy16_ts(uint8_t *dst, uint8_t *src) +{ + __m128i var128; + + var128 = _mm_stream_load_si128((__m128i *)src); + _mm_storeu_si128((__m128i *)dst, var128); +} + +/** + * Copy 32 bytes from one location to another, + * with temporal stores + */ +static __rte_always_inline void +rte_copy32_ts(uint8_t *dst, uint8_t *src) +{ + __m256i ymm0; + + ymm0 = _mm256_stream_load_si256((const __m256i *)src); + _mm256_storeu_si256((__m256i *)dst, ymm0); +} + +/** + * Copy 64 bytes from one location to another, + * with temporal stores + */ +static __rte_always_inline void +rte_copy64_ts(uint8_t *dst, uint8_t *src) +{ + rte_copy32_ts(dst + 0 * 32, src + 0 * 32); + rte_copy32_ts(dst + 1 * 32, src + 1 * 32); +} + +/** + * Copy 128 bytes from one location to another, + * with temporal stores + */ +static __rte_always_inline void +rte_copy128_ts(uint8_t *dst, uint8_t *src) +{ + rte_copy32_ts(dst + 0 * 32, src + 0 * 32); + rte_copy32_ts(dst + 1 * 32, src + 1 * 32); + rte_copy32_ts(dst + 2 * 32, src + 2 * 32); + rte_copy32_ts(dst + 3 * 32, src + 3 * 32); +} + +/** + * Copy len bytes from one location to another, + * with temporal stores 16B aligned + */ +static __rte_always_inline void * +rte_memcpy_aligned_tstore16_generic(void *dst, void *src, int len) +{ + void *dest = dst; + + while (len >= 128) { + rte_copy128_ts((uint8_t *)dst, (uint8_t *)src); + dst = (uint8_t *)dst + 128; + src = (uint8_t *)src + 128; + len -= 128; + } + while (len >= 64) { + rte_copy64_ts((uint8_t *)dst, (uint8_t *)src); + dst = (uint8_t *)dst + 64; + src = (uint8_t *)src + 64; + len -= 64; + } + while (len >= 32) { + rte_copy32_ts((uint8_t *)dst, (uint8_t *)src); + dst = (uint8_t *)dst + 32; + src = (uint8_t *)src + 32; + len -= 32; + } + if (len >= 16) { + rte_copy16_ts((uint8_t *)dst, (uint8_t *)src); + dst = (uint8_t *)dst + 16; + src = (uint8_t *)src + 16; + len -= 16; + } + if (len >= 8) { + *(uint64_t *)dst = *(const uint64_t *)src; + dst = (uint8_t *)dst + 8; + src = (uint8_t *)src + 8; + len -= 8; + } + if (len >= 4) { + *(uint32_t *)dst = *(const uint32_t *)src; + dst = (uint8_t *)dst + 4; + src = (uint8_t *)src + 4; + len -= 4; + } + if (len != 0) { + dst = (uint8_t *)dst - (4 - len); + src = (uint8_t *)src - (4 - len); + *(uint32_t *)dst = *(const uint32_t *)src; + } + + return dest; +} + +static __rte_always_inline void * +rte_memcpy_aligned_ntload_tstore16_amdepyc2(void *dst, + const void *src, + size_t size) +{ + asm volatile goto("movq %0, %%rsi\n\t" + "movq %1, %%rdi\n\t" + "movq %2, %%rdx\n\t" + "cmpq $(128), %%rdx\n\t" + "jb 202f\n\t" + "201:\n\t" + "vmovntdqa (%%rsi), %%ymm0\n\t" + "vmovntdqa 32(%%rsi), %%ymm1\n\t" + "vmovntdqa 64(%%rsi), %%ymm2\n\t" + "vmovntdqa 96(%%rsi), %%ymm3\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "vmovdqu %%ymm1, 32(%%rdi)\n\t" + "vmovdqu %%ymm2, 64(%%rdi)\n\t" + "vmovdqu %%ymm3, 96(%%rdi)\n\t" + "addq $128, %%rsi\n\t" + "addq $128, %%rdi\n\t" + "subq $128, %%rdx\n\t" + "jz %l[done]\n\t" + "cmpq $128, %%rdx\n\t" /*Vector Size 32B. */ + "jae 201b\n\t" + "202:\n\t" + "cmpq $64, %%rdx\n\t" + "jb 203f\n\t" + "vmovntdqa (%%rsi), %%ymm0\n\t" + "vmovntdqa 32(%%rsi), %%ymm1\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "vmovdqu %%ymm1, 32(%%rdi)\n\t" + "addq $64, %%rsi\n\t" + "addq $64, %%rdi\n\t" + "subq $64, %%rdx\n\t" + "jz %l[done]\n\t" + "203:\n\t" + "cmpq $32, %%rdx\n\t" + "jb 204f\n\t" + "vmovntdqa (%%rsi), %%ymm0\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "addq $32, %%rsi\n\t" + "addq $32, %%rdi\n\t" + "subq $32, %%rdx\n\t" + "jz %l[done]\n\t" + "204:\n\t" + "cmpb $16, %%dl\n\t" + "jb 205f\n\t" + "vmovntdqa (%%rsi), %%xmm0\n\t" + "vmovdqu %%xmm0, (%%rdi)\n\t" + "addq $16, %%rsi\n\t" + "addq $16, %%rdi\n\t" + "subq $16, %%rdx\n\t" + "jz %l[done]\n\t" + "205:\n\t" + "cmpb $2, %%dl\n\t" + "jb 208f\n\t" + "cmpb $4, %%dl\n\t" + "jbe 207f\n\t" + "cmpb $8, %%dl\n\t" + "jbe 206f\n\t" + "movq -8(%%rsi,%%rdx), %%rcx\n\t" + "movq (%%rsi), %%rsi\n\t" + "movq %%rcx, -8(%%rdi,%%rdx)\n\t" + "movq %%rsi, (%%rdi)\n\t" + "jmp %l[done]\n\t" + "206:\n\t" + "movl -4(%%rsi,%%rdx), %%ecx\n\t" + "movl (%%rsi), %%esi\n\t" + "movl %%ecx, -4(%%rdi,%%rdx)\n\t" + "movl %%esi, (%%rdi)\n\t" + "jmp %l[done]\n\t" + "207:\n\t" + "movzwl -2(%%rsi,%%rdx), %%ecx\n\t" + "movzwl (%%rsi), %%esi\n\t" + "movw %%cx, -2(%%rdi,%%rdx)\n\t" + "movw %%si, (%%rdi)\n\t" + "jmp %l[done]\n\t" + "208:\n\t" + "movzbl (%%rsi), %%ecx\n\t" + "movb %%cl, (%%rdi)" + : + : "r"(src), "r"(dst), "r"(size) + : "rcx", "rdx", "rsi", "rdi", "ymm0", "ymm1", "ymm2", "ymm3", "memory" + : done + ); +done: + return dst; +} + +static __rte_always_inline void * +rte_memcpy_generic(void *dst, const void *src, size_t len) +{ + asm goto("movq %0, %%rsi\n\t" + "movq %1, %%rdi\n\t" + "movq %2, %%rdx\n\t" + "movq %%rdi, %%rax\n\t" + "cmp $32, %%rdx\n\t" + "jb 101f\n\t" + "cmp $(32 * 2), %%rdx\n\t" + "ja 108f\n\t" + "vmovdqu (%%rsi), %%ymm0\n\t" + "vmovdqu -32(%%rsi,%%rdx), %%ymm1\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "vmovdqu %%ymm1, -32(%%rdi,%%rdx)\n\t" + "vzeroupper\n\t" + "jmp %l[done]\n\t" + "101:\n\t" + /* Less than 1 VEC. */ + "cmpb $32, %%dl\n\t" + "jae 103f\n\t" + "cmpb $16, %%dl\n\t" + "jae 104f\n\t" + "cmpb $8, %%dl\n\t" + "jae 105f\n\t" + "cmpb $4, %%dl\n\t" + "jae 106f\n\t" + "cmpb $1, %%dl\n\t" + "ja 107f\n\t" + "jb 102f\n\t" + "movzbl (%%rsi), %%ecx\n\t" + "movb %%cl, (%%rdi)\n\t" + "102:\n\t" + "jmp %l[done]\n\t" + "103:\n\t" + /* From 32 to 63. No branch when size == 32. */ + "vmovdqu (%%rsi), %%ymm0\n\t" + "vmovdqu -32(%%rsi,%%rdx), %%ymm1\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "vmovdqu %%ymm1, -32(%%rdi,%%rdx)\n\t" + "vzeroupper\n\t" + "jmp %l[done]\n\t" + /* From 16 to 31. No branch when size == 16. */ + "104:\n\t" + "vmovdqu (%%rsi), %%xmm0\n\t" + "vmovdqu -16(%%rsi,%%rdx), %%xmm1\n\t" + "vmovdqu %%xmm0, (%%rdi)\n\t" + "vmovdqu %%xmm1, -16(%%rdi,%%rdx)\n\t" + "jmp %l[done]\n\t" + "105:\n\t" + /* From 8 to 15. No branch when size == 8. */ + "movq -8(%%rsi,%%rdx), %%rcx\n\t" + "movq (%%rsi), %%rsi\n\t" + "movq %%rcx, -8(%%rdi,%%rdx)\n\t" + "movq %%rsi, (%%rdi)\n\t" + "jmp %l[done]\n\t" + "106:\n\t" + /* From 4 to 7. No branch when size == 4. */ + "movl -4(%%rsi,%%rdx), %%ecx\n\t" + "movl (%%rsi), %%esi\n\t" + "movl %%ecx, -4(%%rdi,%%rdx)\n\t" + "movl %%esi, (%%rdi)\n\t" + "jmp %l[done]\n\t" + "107:\n\t" + /* From 2 to 3. No branch when size == 2. */ + "movzwl -2(%%rsi,%%rdx), %%ecx\n\t" + "movzwl (%%rsi), %%esi\n\t" + "movw %%cx, -2(%%rdi,%%rdx)\n\t" + "movw %%si, (%%rdi)\n\t" + "jmp %l[done]\n\t" + "108:\n\t" + /* More than 2 * VEC and there may be overlap between destination */ + /* and source. */ + "cmpq $(32 * 8), %%rdx\n\t" + "ja 111f\n\t" + "cmpq $(32 * 4), %%rdx\n\t" + "jb 109f\n\t" + /* Copy from 4 * VEC to 8 * VEC, inclusively. */ + "vmovdqu (%%rsi), %%ymm0\n\t" + "vmovdqu 32(%%rsi), %%ymm1\n\t" + "vmovdqu (32 * 2)(%%rsi), %%ymm2\n\t" + "vmovdqu (32 * 3)(%%rsi), %%ymm3\n\t" + "vmovdqu -32(%%rsi,%%rdx), %%ymm4\n\t" + "vmovdqu -(32 * 2)(%%rsi,%%rdx), %%ymm5\n\t" + "vmovdqu -(32 * 3)(%%rsi,%%rdx), %%ymm6\n\t" + "vmovdqu -(32 * 4)(%%rsi,%%rdx), %%ymm7\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "vmovdqu %%ymm1, 32(%%rdi)\n\t" + "vmovdqu %%ymm2, (32 * 2)(%%rdi)\n\t" + "vmovdqu %%ymm3, (32 * 3)(%%rdi)\n\t" + "vmovdqu %%ymm4, -32(%%rdi,%%rdx)\n\t" + "vmovdqu %%ymm5, -(32 * 2)(%%rdi,%%rdx)\n\t" + "vmovdqu %%ymm6, -(32 * 3)(%%rdi,%%rdx)\n\t" + "vmovdqu %%ymm7, -(32 * 4)(%%rdi,%%rdx)\n\t" + "vzeroupper\n\t" + "jmp %l[done]\n\t" + "109:\n\t" + /* Copy from 2 * VEC to 4 * VEC. */ + "vmovdqu (%%rsi), %%ymm0\n\t" + "vmovdqu 32(%%rsi), %%ymm1\n\t" + "vmovdqu -32(%%rsi,%%rdx), %%ymm2\n\t" + "vmovdqu -(32 * 2)(%%rsi,%%rdx), %%ymm3\n\t" + "vmovdqu %%ymm0, (%%rdi)\n\t" + "vmovdqu %%ymm1, 32(%%rdi)\n\t" + "vmovdqu %%ymm2, -32(%%rdi,%%rdx)\n\t" + "vmovdqu %%ymm3, -(32 * 2)(%%rdi,%%rdx)\n\t" + "vzeroupper\n\t" + "110:\n\t" + "jmp %l[done]\n\t" + "111:\n\t" + "cmpq %%rsi, %%rdi\n\t" + "ja 113f\n\t" + /* Source == destination is less common. */ + "je 110b\n\t" + /* Load the first VEC and last 4 * VEC to + * support overlapping addresses. + */ + "vmovdqu (%%rsi), %%ymm4\n\t" + "vmovdqu -32(%%rsi, %%rdx), %%ymm5\n\t" + "vmovdqu -(32 * 2)(%%rsi, %%rdx), %%ymm6\n\t" + "vmovdqu -(32 * 3)(%%rsi, %%rdx), %%ymm7\n\t" + "vmovdqu -(32 * 4)(%%rsi, %%rdx), %%ymm8\n\t" + /* Save start and stop of the destination buffer. */ + "movq %%rdi, %%r11\n\t" + "leaq -32(%%rdi, %%rdx), %%rcx\n\t" + /* Align destination for aligned stores in the loop. Compute */ + /* how much destination is misaligned. */ + "movq %%rdi, %%r8\n\t" + "andq $(32 - 1), %%r8\n\t" + /* Get the negative of offset for alignment. */ + "subq $32, %%r8\n\t" + /* Adjust source. */ + "subq %%r8, %%rsi\n\t" + /* Adjust destination which should be aligned now. */ + "subq %%r8, %%rdi\n\t" + /* Adjust length. */ + "addq %%r8, %%rdx\n\t" + /* Check non-temporal store threshold. */ + "cmpq $(1024*1024), %%rdx\n\t" + "ja 115f\n\t" + "112:\n\t" + /* Copy 4 * VEC a time forward. */ + "vmovdqu (%%rsi), %%ymm0\n\t" + "vmovdqu 32(%%rsi), %%ymm1\n\t" + "vmovdqu (32 * 2)(%%rsi), %%ymm2\n\t" + "vmovdqu (32 * 3)(%%rsi), %%ymm3\n\t" + "addq $(32 * 4), %%rsi\n\t" + "subq $(32 * 4), %%rdx\n\t" + "vmovdqa %%ymm0, (%%rdi)\n\t" + "vmovdqa %%ymm1, 32(%%rdi)\n\t" + "vmovdqa %%ymm2, (32 * 2)(%%rdi)\n\t" + "vmovdqa %%ymm3, (32 * 3)(%%rdi)\n\t" + "addq $(32 * 4), %%rdi\n\t" + "cmpq $(32 * 4), %%rdx\n\t" + "ja 112b\n\t" + /* Store the last 4 * VEC. */ + "vmovdqu %%ymm5, (%%rcx)\n\t" + "vmovdqu %%ymm6, -32(%%rcx)\n\t" + "vmovdqu %%ymm7, -(32 * 2)(%%rcx)\n\t" + "vmovdqu %%ymm8, -(32 * 3)(%%rcx)\n\t" + /* Store the first VEC. */ + "vmovdqu %%ymm4, (%%r11)\n\t" + "vzeroupper\n\t" + "jmp %l[done]\n\t" + "113:\n\t" + /* Load the first 4*VEC and last VEC to support overlapping addresses.*/ + "vmovdqu (%%rsi), %%ymm4\n\t" + "vmovdqu 32(%%rsi), %%ymm5\n\t" + "vmovdqu (32 * 2)(%%rsi), %%ymm6\n\t" + "vmovdqu (32 * 3)(%%rsi), %%ymm7\n\t" + "vmovdqu -32(%%rsi,%%rdx), %%ymm8\n\t" + /* Save stop of the destination buffer. */ + "leaq -32(%%rdi, %%rdx), %%r11\n\t" + /* Align destination end for aligned stores in the loop. Compute */ + /* how much destination end is misaligned. */ + "leaq -32(%%rsi, %%rdx), %%rcx\n\t" + "movq %%r11, %%r9\n\t" + "movq %%r11, %%r8\n\t" + "andq $(32 - 1), %%r8\n\t" + /* Adjust source. */ + "subq %%r8, %%rcx\n\t" + /* Adjust the end of destination which should be aligned now. */ + "subq %%r8, %%r9\n\t" + /* Adjust length. */ + "subq %%r8, %%rdx\n\t" + /* Check non-temporal store threshold. */ + "cmpq $(1024*1024), %%rdx\n\t" + "ja 117f\n\t" + "114:\n\t" + /* Copy 4 * VEC a time backward. */ + "vmovdqu (%%rcx), %%ymm0\n\t" + "vmovdqu -32(%%rcx), %%ymm1\n\t" + "vmovdqu -(32 * 2)(%%rcx), %%ymm2\n\t" + "vmovdqu -(32 * 3)(%%rcx), %%ymm3\n\t" + "subq $(32 * 4), %%rcx\n\t" + "subq $(32 * 4), %%rdx\n\t" + "vmovdqa %%ymm0, (%%r9)\n\t" + "vmovdqa %%ymm1, -32(%%r9)\n\t" + "vmovdqa %%ymm2, -(32 * 2)(%%r9)\n\t" + "vmovdqa %%ymm3, -(32 * 3)(%%r9)\n\t" + "subq $(32 * 4), %%r9\n\t" + "cmpq $(32 * 4), %%rdx\n\t" + "ja 114b\n\t" + /* Store the first 4 * VEC. */ + "vmovdqu %%ymm4, (%%rdi)\n\t" + "vmovdqu %%ymm5, 32(%%rdi)\n\t" + "vmovdqu %%ymm6, (32 * 2)(%%rdi)\n\t" + "vmovdqu %%ymm7, (32 * 3)(%%rdi)\n\t" + /* Store the last VEC. */ + "vmovdqu %%ymm8, (%%r11)\n\t" + "vzeroupper\n\t" + "jmp %l[done]\n\t" + + "115:\n\t" + /* Don't use non-temporal store if there is overlap between */ + /* destination and source since destination may be in cache */ + /* when source is loaded. */ + "leaq (%%rdi, %%rdx), %%r10\n\t" + "cmpq %%r10, %%rsi\n\t" + "jb 112b\n\t" + "116:\n\t" + /* Copy 4 * VEC a time forward with non-temporal stores. */ + "prefetcht0 (32*4*2)(%%rsi)\n\t" + "prefetcht0 (32*4*2 + 64)(%%rsi)\n\t" + "prefetcht0 (32*4*3)(%%rsi)\n\t" + "prefetcht0 (32*4*3 + 64)(%%rsi)\n\t" + "vmovdqu (%%rsi), %%ymm0\n\t" + "vmovdqu 32(%%rsi), %%ymm1\n\t" + "vmovdqu (32 * 2)(%%rsi), %%ymm2\n\t" + "vmovdqu (32 * 3)(%%rsi), %%ymm3\n\t" + "addq $(32*4), %%rsi\n\t" + "subq $(32*4), %%rdx\n\t" + "vmovntdq %%ymm0, (%%rdi)\n\t" + "vmovntdq %%ymm1, 32(%%rdi)\n\t" + "vmovntdq %%ymm2, (32 * 2)(%%rdi)\n\t" + "vmovntdq %%ymm3, (32 * 3)(%%rdi)\n\t" + "addq $(32*4), %%rdi\n\t" + "cmpq $(32*4), %%rdx\n\t" + "ja 116b\n\t" + "sfence\n\t" + /* Store the last 4 * VEC. */ + "vmovdqu %%ymm5, (%%rcx)\n\t" + "vmovdqu %%ymm6, -32(%%rcx)\n\t" + "vmovdqu %%ymm7, -(32 * 2)(%%rcx)\n\t" + "vmovdqu %%ymm8, -(32 * 3)(%%rcx)\n\t" + /* Store the first VEC. */ + "vmovdqu %%ymm4, (%%r11)\n\t" + "vzeroupper\n\t" + "jmp %l[done]\n\t" + "117:\n\t" + /* Don't use non-temporal store if there is overlap between */ + /* destination and source since destination may be in cache */ + /* when source is loaded. */ + "leaq (%%rcx, %%rdx), %%r10\n\t" + "cmpq %%r10, %%r9\n\t" + "jb 114b\n\t" + "118:\n\t" + /* Copy 4 * VEC a time backward with non-temporal stores. */ + "prefetcht0 (-32 * 4 * 2)(%%rcx)\n\t" + "prefetcht0 (-32 * 4 * 2 - 64)(%%rcx)\n\t" + "prefetcht0 (-32 * 4 * 3)(%%rcx)\n\t" + "prefetcht0 (-32 * 4 * 3 - 64)(%%rcx)\n\t" + "vmovdqu (%%rcx), %%ymm0\n\t" + "vmovdqu -32(%%rcx), %%ymm1\n\t" + "vmovdqu -(32 * 2)(%%rcx), %%ymm2\n\t" + "vmovdqu -(32 * 3)(%%rcx), %%ymm3\n\t" + "subq $(32*4), %%rcx\n\t" + "subq $(32*4), %%rdx\n\t" + "vmovntdq %%ymm0, (%%r9)\n\t" + "vmovntdq %%ymm1, -32(%%r9)\n\t" + "vmovntdq %%ymm2, -(32 * 2)(%%r9)\n\t" + "vmovntdq %%ymm3, -(32 * 3)(%%r9)\n\t" + "subq $(32 * 4), %%r9\n\t" + "cmpq $(32 * 4), %%rdx\n\t" + "ja 118b\n\t" + "sfence\n\t" + /* Store the first 4 * VEC. */ + "vmovdqu %%ymm4, (%%rdi)\n\t" + "vmovdqu %%ymm5, 32(%%rdi)\n\t" + "vmovdqu %%ymm6, (32 * 2)(%%rdi)\n\t" + "vmovdqu %%ymm7, (32 * 3)(%%rdi)\n\t" + /* Store the last VEC. */ + "vmovdqu %%ymm8, (%%r11)\n\t" + "vzeroupper\n\t" + "jmp %l[done]" + : + : "r"(src), "r"(dst), "r"(len) + : "rax", "rcx", "rdx", "rdi", "rsi", "r8", "r9", "r10", "r11", "r12", "ymm0", + "ymm1", "ymm2", "ymm3", "ymm4", "ymm5", "ymm6", "ymm7", "ymm8", "memory" + : done + ); +done: + return dst; +} + +#else static __rte_always_inline void * rte_memcpy_generic(void *dst, const void *src, size_t n) { @@ -479,6 +971,8 @@ rte_memcpy_generic(void *dst, const void *src, size_t n) goto COPY_BLOCK_128_BACK31; } +#endif /* RTE_MEMCPY_AMDEPYC */ + #else /* __AVX512F__ */ #define ALIGNMENT_MASK 0x0F @@ -874,6 +1368,14 @@ rte_memcpy(void *dst, const void *src, size_t n) return rte_memcpy_generic(dst, src, n); } +#if defined __AVX2__ && defined(RTE_MEMCPY_AMDEPYC) +static __rte_always_inline void * +rte_memcpy_aligned_tstore16(void *dst, void *src, int len) +{ + return rte_memcpy_aligned_ntload_tstore16_amdepyc2(dst, src, len); +} +#endif + #if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 100000) #pragma GCC diagnostic pop #endif