From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CACBC433F5 for ; Mon, 21 Feb 2022 22:48:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235762AbiBUWsv (ORCPT ); Mon, 21 Feb 2022 17:48:51 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:49910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232926AbiBUWss (ORCPT ); Mon, 21 Feb 2022 17:48:48 -0500 Received: from smtp-fw-9103.amazon.com (smtp-fw-9103.amazon.com [207.171.188.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE07622B32; Mon, 21 Feb 2022 14:48:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1645483703; x=1677019703; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=OmHCGRwqmU9w+q06tpnuChZOzMhhgftA7Ze7HH58W88=; b=p6J3Ju4zG9FN8Tr8IPDE2BYK6aTF8khhfEg8j5ZdI+FFdTK9c2Kz65/h sM14oo45R+vPiaknIo3msFRP21ZUn5agn/cM0Huq04Q76VZKoFeUrZR49 NMfOH3S8TXmKiPs/y/Bf5y84hvFCduxmJXvMWGNrAvJi+28qLRKfipaIl E=; X-IronPort-AV: E=Sophos;i="5.88,386,1635206400"; d="scan'208";a="993834810" Received: from pdx4-co-svc-p1-lb2-vlan2.amazon.com (HELO email-inbound-relay-iad-1a-b09d0114.us-east-1.amazon.com) ([10.25.36.210]) by smtp-border-fw-9103.sea19.amazon.com with ESMTP; 21 Feb 2022 22:48:21 +0000 Received: from EX13MTAUWB001.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan3.iad.amazon.com [10.40.163.38]) by email-inbound-relay-iad-1a-b09d0114.us-east-1.amazon.com (Postfix) with ESMTPS id 6985281907; Mon, 21 Feb 2022 22:48:15 +0000 (UTC) Received: from EX13D02UWB001.ant.amazon.com (10.43.161.240) by EX13MTAUWB001.ant.amazon.com (10.43.161.249) with Microsoft SMTP Server (TLS) id 15.0.1497.28; Mon, 21 Feb 2022 22:48:12 +0000 Received: from EX13MTAUWB001.ant.amazon.com (10.43.161.207) by EX13D02UWB001.ant.amazon.com (10.43.161.240) with Microsoft SMTP Server (TLS) id 15.0.1497.28; Mon, 21 Feb 2022 22:48:12 +0000 Received: from dev-dsk-alisaidi-1d-b9a0e636.us-east-1.amazon.com (172.19.181.128) by mail-relay.amazon.com (10.43.161.249) with Microsoft SMTP Server id 15.0.1497.28 via Frontend Transport; Mon, 21 Feb 2022 22:48:12 +0000 Received: by dev-dsk-alisaidi-1d-b9a0e636.us-east-1.amazon.com (Postfix, from userid 5131138) id 18E5217C4; Mon, 21 Feb 2022 22:48:11 +0000 (UTC) From: Ali Saidi To: , , , , CC: , , Peter Zijlstra , Ingo Molnar , "Arnaldo Carvalho de Melo" , Mark Rutland , "Alexander Shishkin" , Jiri Olsa , Namhyung Kim , John Garry , "Will Deacon" , Mathieu Poirier , "James Clark" , Andrew Kilroy , Jin Yao , Kajol Jain , Li Huafei Subject: [PATCH v2 1/2] perf arm-spe: Use SPE data source for neoverse cores Date: Mon, 21 Feb 2022 22:47:59 +0000 Message-ID: <20220221224807.18172-1-alisaidi@amazon.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When synthesizing data from SPE, augment the type with source information for Arm Neoverse cores. The field is IMPLDEF but the Neoverse cores all use the same encoding. I can't find encoding information for any other SPE implementations to unify their choices with Arm's thus that is left for future work. This change populates the mem_lvl_num for Neoverse cores instead of the deprecated mem_lvl namespace. Signed-off-by: Ali Saidi --- .../util/arm-spe-decoder/arm-spe-decoder.c | 1 + .../util/arm-spe-decoder/arm-spe-decoder.h | 12 ++ tools/perf/util/arm-spe.c | 106 +++++++++++++++--- 3 files changed, 104 insertions(+), 15 deletions(-) diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c index 5e390a1a79ab..091987dd3966 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c @@ -220,6 +220,7 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder) break; case ARM_SPE_DATA_SOURCE: + decoder->record.source = payload; break; case ARM_SPE_BAD: break; diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h index 69b31084d6be..c81bf90c0996 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h @@ -29,6 +29,17 @@ enum arm_spe_op_type { ARM_SPE_ST = 1 << 1, }; +enum arm_spe_neoverse_data_source { + ARM_SPE_NV_L1D = 0x0, + ARM_SPE_NV_L2 = 0x8, + ARM_SPE_NV_PEER_CORE = 0x9, + ARM_SPE_NV_LCL_CLSTR = 0xa, + ARM_SPE_NV_SYS_CACHE = 0xb, + ARM_SPE_NV_PEER_CLSTR = 0xc, + ARM_SPE_NV_REMOTE = 0xd, + ARM_SPE_NV_DRAM = 0xe, +}; + struct arm_spe_record { enum arm_spe_sample_type type; int err; @@ -40,6 +51,7 @@ struct arm_spe_record { u64 virt_addr; u64 phys_addr; u64 context_id; + u16 source; }; struct arm_spe_insn; diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index d2b64e3f588b..e0243c2fed5f 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -34,6 +34,7 @@ #include "arm-spe-decoder/arm-spe-decoder.h" #include "arm-spe-decoder/arm-spe-pkt-decoder.h" +#include <../../../arch/arm64/include/asm/cputype.h> #define MAX_TIMESTAMP (~0ULL) struct arm_spe { @@ -45,6 +46,7 @@ struct arm_spe { struct perf_session *session; struct machine *machine; u32 pmu_type; + u64 midr; struct perf_tsc_conversion tc; @@ -399,33 +401,103 @@ static bool arm_spe__is_memory_event(enum arm_spe_sample_type type) return false; } -static u64 arm_spe__synth_data_source(const struct arm_spe_record *record) -{ - union perf_mem_data_src data_src = { 0 }; +static const struct midr_range neoverse_spe[] = { + MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1), + MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), + {}, +}; - if (record->op == ARM_SPE_LD) - data_src.mem_op = PERF_MEM_OP_LOAD; - else - data_src.mem_op = PERF_MEM_OP_STORE; +static void arm_spe__synth_data_source_neoverse(const struct arm_spe_record *record, + union perf_mem_data_src *data_src) +{ + switch (record->source) { + case ARM_SPE_NV_L1D: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_L1; + break; + case ARM_SPE_NV_L2: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_L2; + break; + case ARM_SPE_NV_PEER_CORE: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_snoop = PERF_MEM_SNOOP_HITM; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_ANY_CACHE; + break; + /* + * We don't know if this is L1, L2, or even L3 (for the cases the system + * has an L3, but we do know it was a cache-2-cache transfer, so set + * SNOOP_HITM + */ + case ARM_SPE_NV_LCL_CLSTR: + case ARM_SPE_NV_PEER_CLSTR: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_snoop = PERF_MEM_SNOOP_HITM; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_ANY_CACHE; + break; + /* + * System cache is assumed to be L4, as cluster cache (if it exists) + * would be L3 cache on Neoverse platforms + */ + case ARM_SPE_NV_SYS_CACHE: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_L4; + break; + /* + * We don't know what level it hit in, except it came from the other + * socket + */ + case ARM_SPE_NV_REMOTE: + data_src->mem_snoop = PERF_MEM_SNOOP_HITM; + data_src->mem_remote = PERF_MEM_REMOTE_REMOTE; + break; + case ARM_SPE_NV_DRAM: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_RAM; + break; + default: + break; + } +} + +static void arm_spe__synth_data_source_generic(const struct arm_spe_record *record, + union perf_mem_data_src *data_src) +{ if (record->type & (ARM_SPE_LLC_ACCESS | ARM_SPE_LLC_MISS)) { - data_src.mem_lvl = PERF_MEM_LVL_L3; + data_src->mem_lvl = PERF_MEM_LVL_L3; if (record->type & ARM_SPE_LLC_MISS) - data_src.mem_lvl |= PERF_MEM_LVL_MISS; + data_src->mem_lvl |= PERF_MEM_LVL_MISS; else - data_src.mem_lvl |= PERF_MEM_LVL_HIT; + data_src->mem_lvl |= PERF_MEM_LVL_HIT; } else if (record->type & (ARM_SPE_L1D_ACCESS | ARM_SPE_L1D_MISS)) { - data_src.mem_lvl = PERF_MEM_LVL_L1; + data_src->mem_lvl = PERF_MEM_LVL_L1; if (record->type & ARM_SPE_L1D_MISS) - data_src.mem_lvl |= PERF_MEM_LVL_MISS; + data_src->mem_lvl |= PERF_MEM_LVL_MISS; else - data_src.mem_lvl |= PERF_MEM_LVL_HIT; + data_src->mem_lvl |= PERF_MEM_LVL_HIT; } if (record->type & ARM_SPE_REMOTE_ACCESS) - data_src.mem_lvl |= PERF_MEM_LVL_REM_CCE1; + data_src->mem_lvl |= PERF_MEM_LVL_REM_CCE1; +} + +static u64 arm_spe__synth_data_source(const struct arm_spe_record *record, u64 midr) +{ + union perf_mem_data_src data_src = { 0 }; + bool is_neoverse = is_midr_in_range(midr, neoverse_spe); + + if (record->op & ARM_SPE_LD) + data_src.mem_op = PERF_MEM_OP_LOAD; + else + data_src.mem_op = PERF_MEM_OP_STORE; + + if (is_neoverse) + arm_spe__synth_data_source_neoverse(record, &data_src); + else + arm_spe__synth_data_source_generic(record, &data_src); if (record->type & (ARM_SPE_TLB_ACCESS | ARM_SPE_TLB_MISS)) { data_src.mem_dtlb = PERF_MEM_TLB_WK; @@ -446,7 +518,7 @@ static int arm_spe_sample(struct arm_spe_queue *speq) u64 data_src; int err; - data_src = arm_spe__synth_data_source(record); + data_src = arm_spe__synth_data_source(record, spe->midr); if (spe->sample_flc) { if (record->type & ARM_SPE_L1D_MISS) { @@ -796,6 +868,10 @@ static int arm_spe_process_event(struct perf_session *session, u64 timestamp; struct arm_spe *spe = container_of(session->auxtrace, struct arm_spe, auxtrace); + const char *cpuid = perf_env__cpuid(session->evlist->env); + u64 midr = strtol(cpuid, NULL, 16); + + spe->midr = midr; if (dump_trace) return 0; -- 2.32.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 20CADC433F5 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When synthesizing data from SPE, augment the type with source information for Arm Neoverse cores. The field is IMPLDEF but the Neoverse cores all use the same encoding. I can't find encoding information for any other SPE implementations to unify their choices with Arm's thus that is left for future work. This change populates the mem_lvl_num for Neoverse cores instead of the deprecated mem_lvl namespace. Signed-off-by: Ali Saidi --- .../util/arm-spe-decoder/arm-spe-decoder.c | 1 + .../util/arm-spe-decoder/arm-spe-decoder.h | 12 ++ tools/perf/util/arm-spe.c | 106 +++++++++++++++--- 3 files changed, 104 insertions(+), 15 deletions(-) diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c index 5e390a1a79ab..091987dd3966 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c @@ -220,6 +220,7 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder) break; case ARM_SPE_DATA_SOURCE: + decoder->record.source = payload; break; case ARM_SPE_BAD: break; diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h index 69b31084d6be..c81bf90c0996 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h @@ -29,6 +29,17 @@ enum arm_spe_op_type { ARM_SPE_ST = 1 << 1, }; +enum arm_spe_neoverse_data_source { + ARM_SPE_NV_L1D = 0x0, + ARM_SPE_NV_L2 = 0x8, + ARM_SPE_NV_PEER_CORE = 0x9, + ARM_SPE_NV_LCL_CLSTR = 0xa, + ARM_SPE_NV_SYS_CACHE = 0xb, + ARM_SPE_NV_PEER_CLSTR = 0xc, + ARM_SPE_NV_REMOTE = 0xd, + ARM_SPE_NV_DRAM = 0xe, +}; + struct arm_spe_record { enum arm_spe_sample_type type; int err; @@ -40,6 +51,7 @@ struct arm_spe_record { u64 virt_addr; u64 phys_addr; u64 context_id; + u16 source; }; struct arm_spe_insn; diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index d2b64e3f588b..e0243c2fed5f 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -34,6 +34,7 @@ #include "arm-spe-decoder/arm-spe-decoder.h" #include "arm-spe-decoder/arm-spe-pkt-decoder.h" +#include <../../../arch/arm64/include/asm/cputype.h> #define MAX_TIMESTAMP (~0ULL) struct arm_spe { @@ -45,6 +46,7 @@ struct arm_spe { struct perf_session *session; struct machine *machine; u32 pmu_type; + u64 midr; struct perf_tsc_conversion tc; @@ -399,33 +401,103 @@ static bool arm_spe__is_memory_event(enum arm_spe_sample_type type) return false; } -static u64 arm_spe__synth_data_source(const struct arm_spe_record *record) -{ - union perf_mem_data_src data_src = { 0 }; +static const struct midr_range neoverse_spe[] = { + MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1), + MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), + {}, +}; - if (record->op == ARM_SPE_LD) - data_src.mem_op = PERF_MEM_OP_LOAD; - else - data_src.mem_op = PERF_MEM_OP_STORE; +static void arm_spe__synth_data_source_neoverse(const struct arm_spe_record *record, + union perf_mem_data_src *data_src) +{ + switch (record->source) { + case ARM_SPE_NV_L1D: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_L1; + break; + case ARM_SPE_NV_L2: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_L2; + break; + case ARM_SPE_NV_PEER_CORE: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_snoop = PERF_MEM_SNOOP_HITM; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_ANY_CACHE; + break; + /* + * We don't know if this is L1, L2, or even L3 (for the cases the system + * has an L3, but we do know it was a cache-2-cache transfer, so set + * SNOOP_HITM + */ + case ARM_SPE_NV_LCL_CLSTR: + case ARM_SPE_NV_PEER_CLSTR: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_snoop = PERF_MEM_SNOOP_HITM; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_ANY_CACHE; + break; + /* + * System cache is assumed to be L4, as cluster cache (if it exists) + * would be L3 cache on Neoverse platforms + */ + case ARM_SPE_NV_SYS_CACHE: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_L4; + break; + /* + * We don't know what level it hit in, except it came from the other + * socket + */ + case ARM_SPE_NV_REMOTE: + data_src->mem_snoop = PERF_MEM_SNOOP_HITM; + data_src->mem_remote = PERF_MEM_REMOTE_REMOTE; + break; + case ARM_SPE_NV_DRAM: + data_src->mem_lvl = PERF_MEM_LVL_HIT; + data_src->mem_lvl_num = PERF_MEM_LVLNUM_RAM; + break; + default: + break; + } +} + +static void arm_spe__synth_data_source_generic(const struct arm_spe_record *record, + union perf_mem_data_src *data_src) +{ if (record->type & (ARM_SPE_LLC_ACCESS | ARM_SPE_LLC_MISS)) { - data_src.mem_lvl = PERF_MEM_LVL_L3; + data_src->mem_lvl = PERF_MEM_LVL_L3; if (record->type & ARM_SPE_LLC_MISS) - data_src.mem_lvl |= PERF_MEM_LVL_MISS; + data_src->mem_lvl |= PERF_MEM_LVL_MISS; else - data_src.mem_lvl |= PERF_MEM_LVL_HIT; + data_src->mem_lvl |= PERF_MEM_LVL_HIT; } else if (record->type & (ARM_SPE_L1D_ACCESS | ARM_SPE_L1D_MISS)) { - data_src.mem_lvl = PERF_MEM_LVL_L1; + data_src->mem_lvl = PERF_MEM_LVL_L1; if (record->type & ARM_SPE_L1D_MISS) - data_src.mem_lvl |= PERF_MEM_LVL_MISS; + data_src->mem_lvl |= PERF_MEM_LVL_MISS; else - data_src.mem_lvl |= PERF_MEM_LVL_HIT; + data_src->mem_lvl |= PERF_MEM_LVL_HIT; } if (record->type & ARM_SPE_REMOTE_ACCESS) - data_src.mem_lvl |= PERF_MEM_LVL_REM_CCE1; + data_src->mem_lvl |= PERF_MEM_LVL_REM_CCE1; +} + +static u64 arm_spe__synth_data_source(const struct arm_spe_record *record, u64 midr) +{ + union perf_mem_data_src data_src = { 0 }; + bool is_neoverse = is_midr_in_range(midr, neoverse_spe); + + if (record->op & ARM_SPE_LD) + data_src.mem_op = PERF_MEM_OP_LOAD; + else + data_src.mem_op = PERF_MEM_OP_STORE; + + if (is_neoverse) + arm_spe__synth_data_source_neoverse(record, &data_src); + else + arm_spe__synth_data_source_generic(record, &data_src); if (record->type & (ARM_SPE_TLB_ACCESS | ARM_SPE_TLB_MISS)) { data_src.mem_dtlb = PERF_MEM_TLB_WK; @@ -446,7 +518,7 @@ static int arm_spe_sample(struct arm_spe_queue *speq) u64 data_src; int err; - data_src = arm_spe__synth_data_source(record); + data_src = arm_spe__synth_data_source(record, spe->midr); if (spe->sample_flc) { if (record->type & ARM_SPE_L1D_MISS) { @@ -796,6 +868,10 @@ static int arm_spe_process_event(struct perf_session *session, u64 timestamp; struct arm_spe *spe = container_of(session->auxtrace, struct arm_spe, auxtrace); + const char *cpuid = perf_env__cpuid(session->evlist->env); + u64 midr = strtol(cpuid, NULL, 16); + + spe->midr = midr; if (dump_trace) return 0; -- 2.32.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel