From patchwork Tue Feb 25 11:57:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 11403351 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9096E14E3 for ; Tue, 25 Feb 2020 11:58:10 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 6A9792176D for ; Tue, 25 Feb 2020 11:58:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="U2db/3Yh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6A9792176D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=7AzMCT0BNLc/3mB9tEXQiIbMBvOEHojV09PM9e6rN40=; b=U2db/3Yh98L/jk0rPvhT3A/ZoJ qS6pKo8c2AnGSUh4Ey6MaAzdPoC1yHJ7WrhCjjtij4ElOlE59fd+0OCIVPB0fUSEg/0SgFi3K2o8p eljkka/TJHrKzeHmxV1i3MLqywOtvPPJ7PjZ8HyJm+PNh7gJevG/ZGruu+OqqOQaX2SHX1/c24qLX ORzw5mTZ3OzpmuugVkMgm1ficgifeVVkgW7ZWozilti46vI7NDVMNlupKf1Pwz7GUYPe3AwXqIN8j sJq77itZG71QWMS4Ac82JQS3py3AT5RlolmXIx3z7LC4PMaGhNeN5jtNLNGAYGK66rc8MApBQoIJ7 nYM97HLw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6Yqn-0004Ov-NY; Tue, 25 Feb 2020 11:58:09 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6YqT-0004Aw-Ty for linux-arm-kernel@lists.infradead.org; Tue, 25 Feb 2020 11:57:51 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 11484106F; Tue, 25 Feb 2020 03:57:49 -0800 (PST) Received: from e121896.warwick.arm.com (e121896.warwick.arm.com [10.32.36.33]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 68BFF3F6CF; Tue, 25 Feb 2020 03:57:46 -0800 (PST) From: James Clark To: adrian.hunter@intel.com, jolsa@redhat.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 1/4] perf tools: Move arm-spe-pkt-decoder.h/c to the new dir Date: Tue, 25 Feb 2020 11:57:36 +0000 Message-Id: <20200225115739.18740-2-james.clark@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200225115739.18740-1-james.clark@arm.com> References: <768a33f2-8694-270e-d3e8-3da4c65e96b3@intel.com> <20200225115739.18740-1-james.clark@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200225_035750_051196_05A6D418 X-CRM114-Status: GOOD ( 12.87 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Al Grant , Peter Zijlstra , Arnaldo Carvalho de Melo , Alexander Shishkin , Ingo Molnar , James Clark , Namhyung Kim , nd@arm.com, Will Deacon , Tan Xiaojun MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Tan Xiaojun Create a new arm-spe-decoder directory for subsequent extensions and move arm-spe-pkt-decoder.h/c to this directory. No code changes. Signed-off-by: Tan Xiaojun Tested-by: Qi Liu Signed-off-by: James Clark Cc: Will Deacon Cc: Mark Rutland Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Tan Xiaojun Cc: Al Grant Cc: Namhyung Kim --- tools/perf/util/Build | 2 +- tools/perf/util/arm-spe-decoder/Build | 1 + tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.c | 0 tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.h | 0 tools/perf/util/arm-spe.c | 2 +- 5 files changed, 3 insertions(+), 2 deletions(-) create mode 100644 tools/perf/util/arm-spe-decoder/Build rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.c (100%) rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.h (100%) diff --git a/tools/perf/util/Build b/tools/perf/util/Build index 07da6c790b63..0184510083c2 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -104,7 +104,7 @@ perf-$(CONFIG_AUXTRACE) += intel-pt-decoder/ perf-$(CONFIG_AUXTRACE) += intel-pt.o perf-$(CONFIG_AUXTRACE) += intel-bts.o perf-$(CONFIG_AUXTRACE) += arm-spe.o -perf-$(CONFIG_AUXTRACE) += arm-spe-pkt-decoder.o +perf-$(CONFIG_AUXTRACE) += arm-spe-decoder/ perf-$(CONFIG_AUXTRACE) += s390-cpumsf.o ifdef CONFIG_LIBOPENCSD diff --git a/tools/perf/util/arm-spe-decoder/Build b/tools/perf/util/arm-spe-decoder/Build new file mode 100644 index 000000000000..16efbc245028 --- /dev/null +++ b/tools/perf/util/arm-spe-decoder/Build @@ -0,0 +1 @@ +perf-$(CONFIG_AUXTRACE) += arm-spe-pkt-decoder.o diff --git a/tools/perf/util/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c similarity index 100% rename from tools/perf/util/arm-spe-pkt-decoder.c rename to tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c diff --git a/tools/perf/util/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h similarity index 100% rename from tools/perf/util/arm-spe-pkt-decoder.h rename to tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index 53be12b23ff4..f3382a38d48e 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -23,7 +23,7 @@ #include "debug.h" #include "auxtrace.h" #include "arm-spe.h" -#include "arm-spe-pkt-decoder.h" +#include "arm-spe-decoder/arm-spe-pkt-decoder.h" struct arm_spe { struct auxtrace auxtrace; From patchwork Tue Feb 25 11:57:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 11403353 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4129B1580 for ; Tue, 25 Feb 2020 11:58:31 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 16F482176D for ; Tue, 25 Feb 2020 11:58:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="CQvBIIA1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16F482176D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; 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Tue, 25 Feb 2020 11:58:30 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6YqY-0004Dg-Ej for linux-arm-kernel@lists.infradead.org; Tue, 25 Feb 2020 11:57:58 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 54454113E; Tue, 25 Feb 2020 03:57:52 -0800 (PST) Received: from e121896.warwick.arm.com (e121896.warwick.arm.com [10.32.36.33]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 494443F6CF; Tue, 25 Feb 2020 03:57:49 -0800 (PST) From: James Clark To: adrian.hunter@intel.com, jolsa@redhat.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 2/4] perf tools: Add support for "report" for some spe events Date: Tue, 25 Feb 2020 11:57:37 +0000 Message-Id: <20200225115739.18740-3-james.clark@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200225115739.18740-1-james.clark@arm.com> References: <768a33f2-8694-270e-d3e8-3da4c65e96b3@intel.com> <20200225115739.18740-1-james.clark@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200225_035754_625353_B683811C X-CRM114-Status: GOOD ( 21.30 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Al Grant , Peter Zijlstra , Arnaldo Carvalho de Melo , Alexander Shishkin , Ingo Molnar , James Clark , Namhyung Kim , nd@arm.com, Will Deacon , Tan Xiaojun MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Tan Xiaojun After the commit ffd3d18c20b8 ("perf tools: Add ARM Statistical Profiling Extensions (SPE) support") is merged, "perf record" and "perf report --dump-raw-trace" have been supported. However, the raw data that is dumped cannot be used without parsing. This patch is to improve the "perf report" support for spe, and further process the data. Currently, support for the four events of llc-miss, tlb-miss, branch-miss, and remote-access is added. Example usage: $ ./perf record -c 1024 -e arm_spe_0/branch_filter=1,ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/ -o perf-armspe-dd.data dd if=/dev/zero of=/dev/null count=10000 $ ./perf report -i perf-armspe-dd.data --stdio -------------------------------------------------------------------- ... # Samples: 23 of event 'llc-miss' # Event count (approx.): 23 ... 33.33% 33.33% dd [kernel.kallsyms] [k] perf_iterate_ctx.constprop.64 12.12% 12.12% dd [kernel.kallsyms] [k] perf_event_mmap 6.06% 6.06% dd [kernel.kallsyms] [k] copy_page 6.06% 6.06% dd ld-2.28.so [.] _dl_relocate_object 3.03% 3.03% dd [kernel.kallsyms] [k] change_protection_range 3.03% 3.03% dd [kernel.kallsyms] [k] filemap_map_pages 3.03% 3.03% dd [kernel.kallsyms] [k] free_pages_and_swap_cache 3.03% 3.03% dd [kernel.kallsyms] [k] generic_permission 3.03% 3.03% dd [kernel.kallsyms] [k] kmem_cache_alloc 3.03% 3.03% dd [kernel.kallsyms] [k] lookup_fast 3.03% 3.03% dd [kernel.kallsyms] [k] perf_event_exec 3.03% 3.03% dd [kernel.kallsyms] [k] radix_tree_next_chunk 3.03% 3.03% dd [kernel.kallsyms] [k] ring_buffer_record_is_on 3.03% 3.03% dd ld-2.28.so [.] _dl_lookup_symbol_x 3.03% 3.03% dd ld-2.28.so [.] _dl_start 3.03% 3.03% dd ld-2.28.so [.] dl_main 3.03% 3.03% dd ld-2.28.so [.] strcmp 3.03% 3.03% dd libc-2.28.so [.] _dl_addr ... # Samples: 3 of event 'tlb-miss' # Event count (approx.): 3 ... 33.33% 33.33% dd [kernel.kallsyms] [k] filemap_map_pages 33.33% 33.33% dd ld-2.28.so [.] _dl_start 33.33% 33.33% dd ld-2.28.so [.] dl_main ... # Samples: 20 of event 'branch-miss' # Event count (approx.): 20 ... 15.38% 15.38% dd [kernel.kallsyms] [k] __fput 7.69% 7.69% dd [kernel.kallsyms] [k] do_el0_ia_bp_hardening 7.69% 7.69% dd [kernel.kallsyms] [k] filemap_map_pages 7.69% 7.69% dd [kernel.kallsyms] [k] pagevec_lru_move_fn 7.69% 7.69% dd [kernel.kallsyms] [k] perf_event_mmap_output 7.69% 7.69% dd [kernel.kallsyms] [k] task_work_run 7.69% 7.69% dd [kernel.kallsyms] [k] unmap_single_vma 7.69% 7.69% dd libc-2.28.so [.] _IO_flush_all_lockp 7.69% 7.69% dd libc-2.28.so [.] __memcpy_generic 7.69% 7.69% dd libc-2.28.so [.] _dl_addr 7.69% 7.69% dd libc-2.28.so [.] msort_with_tmp.part.0 7.69% 7.69% dd libc-2.28.so [.] read_alias_file ... # Samples: 5 of event 'remote-access' # Event count (approx.): 5 ... 27.78% 27.78% dd [kernel.kallsyms] [k] perf_iterate_ctx.constprop.64 16.67% 16.67% dd [kernel.kallsyms] [k] perf_event_mmap 5.56% 5.56% dd [kernel.kallsyms] [k] change_protection_range 5.56% 5.56% dd [kernel.kallsyms] [k] filemap_map_pages 5.56% 5.56% dd [kernel.kallsyms] [k] free_pages_and_swap_cache 5.56% 5.56% dd [kernel.kallsyms] [k] generic_permission 5.56% 5.56% dd [kernel.kallsyms] [k] lookup_fast 5.56% 5.56% dd [kernel.kallsyms] [k] perf_event_exec 5.56% 5.56% dd [kernel.kallsyms] [k] radix_tree_next_chunk 5.56% 5.56% dd ld-2.28.so [.] _dl_relocate_object 5.56% 5.56% dd ld-2.28.so [.] _dl_start 5.56% 5.56% dd ld-2.28.so [.] dl_main -------------------------------------------------------------------- After that, more analysis and processing of the raw data of spe will be done. Signed-off-by: Tan Xiaojun Tested-by: Qi Liu Signed-off-by: James Clark Cc: Will Deacon Cc: Mark Rutland Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Tan Xiaojun Cc: Al Grant Cc: Namhyung Kim --- tools/perf/util/arm-spe-decoder/Build | 2 +- .../util/arm-spe-decoder/arm-spe-decoder.c | 225 ++++++ .../util/arm-spe-decoder/arm-spe-decoder.h | 66 ++ .../arm-spe-decoder/arm-spe-pkt-decoder.h | 2 + tools/perf/util/arm-spe.c | 745 +++++++++++++++++- tools/perf/util/auxtrace.c | 13 + tools/perf/util/auxtrace.h | 8 +- 7 files changed, 1022 insertions(+), 39 deletions(-) create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h diff --git a/tools/perf/util/arm-spe-decoder/Build b/tools/perf/util/arm-spe-decoder/Build index 16efbc245028..f8dae13fc876 100644 --- a/tools/perf/util/arm-spe-decoder/Build +++ b/tools/perf/util/arm-spe-decoder/Build @@ -1 +1 @@ -perf-$(CONFIG_AUXTRACE) += arm-spe-pkt-decoder.o +perf-$(CONFIG_AUXTRACE) += arm-spe-pkt-decoder.o arm-spe-decoder.o diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c new file mode 100644 index 000000000000..50e796b89a95 --- /dev/null +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c @@ -0,0 +1,225 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * arm_spe_decoder.c: ARM SPE support + */ + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../util.h" +#include "../debug.h" +#include "../auxtrace.h" + +#include "arm-spe-pkt-decoder.h" +#include "arm-spe-decoder.h" + +#ifndef BIT +#define BIT(n) (1UL << (n)) +#endif + +struct arm_spe_decoder { + int (*get_trace)(struct arm_spe_buffer *buffer, void *data); + void *data; + struct arm_spe_state state; + const unsigned char *buf; + size_t len; + uint64_t pos; + struct arm_spe_pkt packet; + int pkt_step; + int pkt_len; + int last_packet_type; + + uint64_t last_ip; + uint64_t ip; + uint64_t timestamp; + uint64_t sample_timestamp; + const unsigned char *next_buf; + size_t next_len; + unsigned char temp_buf[ARM_SPE_PKT_MAX_SZ]; +}; + +static uint64_t arm_spe_calc_ip(uint64_t payload) +{ + uint64_t ip = (payload & ~(0xffULL << 56)); + + /* fill high 8 bits for kernel virtual address */ + /* In Armv8 Architecture Reference Manual: Xn[55] determines + * whether the address lies in the upper or lower address range + * for the purpose of determining whether address tagging is + * used */ + if (ip & BIT(55)) + ip |= (uint64_t)(0xffULL << 56); + + return ip; +} + +struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params) +{ + struct arm_spe_decoder *decoder; + + if (!params->get_trace) + return NULL; + + decoder = zalloc(sizeof(struct arm_spe_decoder)); + if (!decoder) + return NULL; + + decoder->get_trace = params->get_trace; + decoder->data = params->data; + + return decoder; +} + +void arm_spe_decoder_free(struct arm_spe_decoder *decoder) +{ + free(decoder); +} + +static int arm_spe_bad_packet(struct arm_spe_decoder *decoder) +{ + decoder->pkt_len = 1; + decoder->pkt_step = 1; + pr_debug("ERROR: Bad packet\n"); + + return -EBADMSG; +} + + +static int arm_spe_get_data(struct arm_spe_decoder *decoder) +{ + struct arm_spe_buffer buffer = { .buf = 0, }; + int ret; + + decoder->pkt_step = 0; + + pr_debug("Getting more data\n"); + ret = decoder->get_trace(&buffer, decoder->data); + if (ret) + return ret; + + decoder->buf = buffer.buf; + decoder->len = buffer.len; + if (!decoder->len) { + pr_debug("No more data\n"); + return -ENODATA; + } + + return 0; +} + +static int arm_spe_get_next_data(struct arm_spe_decoder *decoder) +{ + return arm_spe_get_data(decoder); +} + +static int arm_spe_get_next_packet(struct arm_spe_decoder *decoder) +{ + int ret; + + decoder->last_packet_type = decoder->packet.type; + + do { + decoder->pos += decoder->pkt_step; + decoder->buf += decoder->pkt_step; + decoder->len -= decoder->pkt_step; + + + if (!decoder->len) { + ret = arm_spe_get_next_data(decoder); + if (ret) + return ret; + } + + ret = arm_spe_get_packet(decoder->buf, decoder->len, + &decoder->packet); + if (ret <= 0) + return arm_spe_bad_packet(decoder); + + decoder->pkt_len = ret; + decoder->pkt_step = ret; + } while (decoder->packet.type == ARM_SPE_PAD); + + return 0; +} + +static int arm_spe_walk_trace(struct arm_spe_decoder *decoder) +{ + int err; + int idx; + uint64_t payload; + + while (1) { + err = arm_spe_get_next_packet(decoder); + if (err) + return err; + + idx = decoder->packet.index; + payload = decoder->packet.payload; + + switch (decoder->packet.type) { + case ARM_SPE_TIMESTAMP: + decoder->sample_timestamp = payload; + return 0; + case ARM_SPE_END: + decoder->sample_timestamp = 0; + return 0; + case ARM_SPE_ADDRESS: + decoder->ip = arm_spe_calc_ip(payload); + if (idx == 0) + decoder->state.from_ip = decoder->ip; + else if (idx == 1) + decoder->state.to_ip = decoder->ip; + break; + case ARM_SPE_COUNTER: + break; + case ARM_SPE_CONTEXT: + break; + case ARM_SPE_OP_TYPE: + break; + case ARM_SPE_EVENTS: + if (payload & BIT(EV_TLB_REFILL)) + decoder->state.type |= ARM_SPE_TLB_MISS; + if (payload & BIT(EV_MISPRED)) + decoder->state.type |= ARM_SPE_BRANCH_MISS; + if (idx > 1 && (payload & BIT(EV_LLC_REFILL))) + decoder->state.type |= ARM_SPE_LLC_MISS; + if (idx > 1 && (payload & BIT(EV_REMOTE_ACCESS))) + decoder->state.type |= ARM_SPE_REMOTE_ACCESS; + + break; + case ARM_SPE_DATA_SOURCE: + break; + case ARM_SPE_BAD: + break; + case ARM_SPE_PAD: + break; + default: + pr_err("Get Packet Error!\n"); + return -ENOSYS; + } + } +} + +const struct arm_spe_state *arm_spe_decode(struct arm_spe_decoder *decoder) +{ + int err; + + decoder->state.type = 0; + + err = arm_spe_walk_trace(decoder); + if (err) + decoder->state.err = err; + + decoder->state.timestamp = decoder->sample_timestamp; + + return &decoder->state; +} diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h new file mode 100644 index 000000000000..330f9e1e71ab --- /dev/null +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * arm_spe_decoder.c: ARM SPE support + */ + +#ifndef INCLUDE__ARM_SPE_DECODER_H__ +#define INCLUDE__ARM_SPE_DECODER_H__ + +#include +#include +#include + +enum arm_spe_events { + EV_EXCEPTION_GEN, + EV_RETIRED, + EV_L1D_ACCESS, + EV_L1D_REFILL, + EV_TLB_ACCESS, + EV_TLB_REFILL, + EV_NOT_TAKEN, + EV_MISPRED, + EV_LLC_ACCESS, + EV_LLC_REFILL, + EV_REMOTE_ACCESS, +}; + +enum arm_spe_sample_type { + ARM_SPE_LLC_MISS = 1 << 0, + ARM_SPE_TLB_MISS = 1 << 1, + ARM_SPE_BRANCH_MISS = 1 << 2, + ARM_SPE_REMOTE_ACCESS = 1 << 3, + ARM_SPE_EX_STOP = 1 << 6, +}; + +struct arm_spe_state { + enum arm_spe_sample_type type; + int err; + uint64_t from_ip; + uint64_t to_ip; + uint64_t timestamp; +}; + +struct arm_spe_insn; + +struct arm_spe_buffer { + const unsigned char *buf; + size_t len; + u64 offset; + bool consecutive; + uint64_t ref_timestamp; + uint64_t trace_nr; +}; + +struct arm_spe_params { + int (*get_trace)(struct arm_spe_buffer *buffer, void *data); + void *data; +}; + +struct arm_spe_decoder; + +struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params); +void arm_spe_decoder_free(struct arm_spe_decoder *decoder); + +const struct arm_spe_state *arm_spe_decode(struct arm_spe_decoder *decoder); + +#endif diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h index d786ef65113f..865d1e35b401 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h +++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h @@ -15,6 +15,8 @@ #define ARM_SPE_NEED_MORE_BYTES -1 #define ARM_SPE_BAD_PACKET -2 +#define ARM_SPE_PKT_MAX_SZ 16 + enum arm_spe_pkt_type { ARM_SPE_BAD, ARM_SPE_PAD, diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index f3382a38d48e..4ef22a0775a9 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -16,34 +16,68 @@ #include #include +#include "auxtrace.h" #include "color.h" +#include "debug.h" #include "evsel.h" +#include "evlist.h" #include "machine.h" #include "session.h" -#include "debug.h" -#include "auxtrace.h" +#include "symbol.h" +#include "thread.h" +#include "thread-stack.h" +#include "tool.h" +#include "util/synthetic-events.h" + #include "arm-spe.h" +#include "arm-spe-decoder/arm-spe-decoder.h" #include "arm-spe-decoder/arm-spe-pkt-decoder.h" +#define MAX_TIMESTAMP (~0ULL) + struct arm_spe { struct auxtrace auxtrace; struct auxtrace_queues queues; struct auxtrace_heap heap; + struct itrace_synth_opts synth_opts; u32 auxtrace_type; struct perf_session *session; struct machine *machine; u32 pmu_type; + + u8 timeless_decoding; + u8 data_queued; + + u8 sample_llc_miss; + u8 sample_tlb_miss; + u8 sample_branch_miss; + u8 sample_remote_access; + u64 llc_miss_id; + u64 tlb_miss_id; + u64 branch_miss_id; + u64 remote_access_id; + u64 kernel_start; + + unsigned long num_events; }; struct arm_spe_queue { - struct arm_spe *spe; - unsigned int queue_nr; - struct auxtrace_buffer *buffer; - bool on_heap; - bool done; - pid_t pid; - pid_t tid; - int cpu; + struct arm_spe *spe; + unsigned int queue_nr; + struct auxtrace_buffer *buffer; + struct auxtrace_buffer *old_buffer; + union perf_event *event_buf; + bool on_heap; + bool done; + pid_t pid; + pid_t tid; + int cpu; + void *decoder; + const struct arm_spe_state *state; + u64 time; + u64 timestamp; + struct thread *thread; + bool have_sample; }; static void arm_spe_dump(struct arm_spe *spe __maybe_unused, @@ -92,44 +126,494 @@ static void arm_spe_dump_event(struct arm_spe *spe, unsigned char *buf, arm_spe_dump(spe, buf, len); } -static int arm_spe_process_event(struct perf_session *session __maybe_unused, - union perf_event *event __maybe_unused, - struct perf_sample *sample __maybe_unused, - struct perf_tool *tool __maybe_unused) +static int arm_spe_get_trace(struct arm_spe_buffer *b, void *data) +{ + struct arm_spe_queue *speq = data; + struct auxtrace_buffer *buffer = speq->buffer; + struct auxtrace_buffer *old_buffer = speq->old_buffer; + struct auxtrace_queue *queue; + + queue = &speq->spe->queues.queue_array[speq->queue_nr]; + + buffer = auxtrace_buffer__next(queue, buffer); + /* If no more data, drop the previous auxtrace_buffer and return */ + if (!buffer) { + if (old_buffer) + auxtrace_buffer__drop_data(old_buffer); + b->len = 0; + return 0; + } + + speq->buffer = buffer; + + /* If the aux_buffer doesn't have data associated, try to load it */ + if (!buffer->data) { + /* get the file desc associated with the perf data file */ + int fd = perf_data__fd(speq->spe->session->data); + + buffer->data = auxtrace_buffer__get_data(buffer, fd); + if (!buffer->data) + return -ENOMEM; + } + + if (buffer->use_data) { + b->len = buffer->use_size; + b->buf = buffer->use_data; + } else { + b->len = buffer->size; + b->buf = buffer->data; + } + + b->ref_timestamp = buffer->reference; + + if (b->len) { + if (old_buffer) + auxtrace_buffer__drop_data(old_buffer); + speq->old_buffer = buffer; + } else { + auxtrace_buffer__drop_data(buffer); + return arm_spe_get_trace(b, data); + } + + return 0; +} + +static struct arm_spe_queue *arm_spe__alloc_queue(struct arm_spe *spe, + unsigned int queue_nr) +{ + struct arm_spe_params params = { .get_trace = 0, }; + struct arm_spe_queue *speq; + + speq = zalloc(sizeof(*speq)); + if (!speq) + return NULL; + + speq->event_buf = malloc(PERF_SAMPLE_MAX_SIZE); + if (!speq->event_buf) + goto out_free; + + speq->spe = spe; + speq->queue_nr = queue_nr; + speq->pid = -1; + speq->tid = -1; + speq->cpu = -1; + + /* params set */ + params.get_trace = arm_spe_get_trace; + params.data = speq; + + /* create new decoder */ + speq->decoder = arm_spe_decoder_new(¶ms); + if (!speq->decoder) + goto out_free; + + return speq; + +out_free: + zfree(&speq->event_buf); + free(speq); + + return NULL; +} + +static inline u8 arm_spe_cpumode(struct arm_spe *spe, uint64_t ip) +{ + return ip >= spe->kernel_start ? + PERF_RECORD_MISC_KERNEL : + PERF_RECORD_MISC_USER; +} + +static void arm_spe_prep_sample(struct arm_spe *spe, + struct arm_spe_queue *speq, + union perf_event *event, + struct perf_sample *sample) +{ + if (!spe->timeless_decoding) + sample->time = speq->timestamp; + + sample->ip = speq->state->from_ip; + sample->cpumode = arm_spe_cpumode(spe, sample->ip); + sample->pid = speq->pid; + sample->tid = speq->tid; + sample->addr = speq->state->to_ip; + sample->period = 1; + sample->cpu = speq->cpu; + + event->sample.header.type = PERF_RECORD_SAMPLE; + event->sample.header.misc = sample->cpumode; + event->sample.header.size = sizeof(struct perf_event_header); +} + +static inline int +arm_spe_deliver_synth_event(struct arm_spe *spe, + struct arm_spe_queue *speq __maybe_unused, + union perf_event *event, + struct perf_sample *sample) +{ + int ret; + + ret = perf_session__deliver_synth_event(spe->session, event, sample); + if (ret) + pr_err("ARM SPE: failed to deliver event, error %d\n", ret); + + return ret; +} + +static int +arm_spe_synth_spe_events_sample(struct arm_spe_queue *speq, + u64 spe_events_id) +{ + struct arm_spe *spe = speq->spe; + union perf_event *event = speq->event_buf; + struct perf_sample sample = { .ip = 0, }; + + arm_spe_prep_sample(spe, speq, event, &sample); + + sample.id = spe_events_id; + sample.stream_id = spe_events_id; + + return arm_spe_deliver_synth_event(spe, speq, event, &sample); +} + +static int arm_spe_sample(struct arm_spe_queue *speq) +{ + const struct arm_spe_state *state = speq->state; + struct arm_spe *spe = speq->spe; + int err; + + if (!speq->have_sample) + return 0; + + speq->have_sample = false; + + if (spe->sample_llc_miss && (state->type & ARM_SPE_LLC_MISS)) { + err = arm_spe_synth_spe_events_sample(speq, spe->llc_miss_id); + if (err) + return err; + } + + if (spe->sample_tlb_miss && (state->type & ARM_SPE_TLB_MISS)) { + err = arm_spe_synth_spe_events_sample(speq, spe->tlb_miss_id); + if (err) + return err; + } + + if (spe->sample_branch_miss && (state->type & ARM_SPE_BRANCH_MISS)) { + err = arm_spe_synth_spe_events_sample(speq, + spe->branch_miss_id); + if (err) + return err; + } + + if (spe->sample_remote_access && (state->type & ARM_SPE_REMOTE_ACCESS)) { + err = arm_spe_synth_spe_events_sample(speq, spe->remote_access_id); + if (err) + return err; + } + + return 0; +} + +static int arm_spe_run_decoder(struct arm_spe_queue *speq, u64 *timestamp) +{ + const struct arm_spe_state *state = speq->state; + struct arm_spe *spe = speq->spe; + int err; + + if (!spe->kernel_start) + spe->kernel_start = machine__kernel_start(spe->machine); + + while (1) { + err = arm_spe_sample(speq); + if (err) + return err; + + state = arm_spe_decode(speq->decoder); + if (state->err) { + if (state->err == -ENODATA) { + pr_debug("No data or all data has been processed.\n"); + return 1; + } + continue; + } + + speq->state = state; + speq->have_sample = true; + + if (!spe->timeless_decoding && speq->timestamp >= *timestamp) { + *timestamp = speq->timestamp; + return 0; + } + } + + return 0; +} + +static int arm_spe__setup_queue(struct arm_spe *spe, + struct auxtrace_queue *queue, + unsigned int queue_nr) +{ + struct arm_spe_queue *speq = queue->priv; + + if (list_empty(&queue->head) || speq) + return 0; + + speq = arm_spe__alloc_queue(spe, queue_nr); + + if (!speq) + return -ENOMEM; + + queue->priv = speq; + + if (queue->cpu != -1) + speq->cpu = queue->cpu; + + if (!speq->on_heap) { + const struct arm_spe_state *state; + int ret; + + if (spe->timeless_decoding) + return 0; + +retry: + state = arm_spe_decode(speq->decoder); + if (state->err) { + if (state->err == -ENODATA) { + pr_debug("queue %u has no timestamp\n", + queue_nr); + return 0; + } + goto retry; + } + + speq->timestamp = state->timestamp; + speq->state = state; + speq->have_sample = true; + ret = auxtrace_heap__add(&spe->heap, queue_nr, speq->timestamp); + if (ret) + return ret; + speq->on_heap = true; + } + + return 0; +} + +static int arm_spe__setup_queues(struct arm_spe *spe) { + unsigned int i; + int ret; + + for (i = 0; i < spe->queues.nr_queues; i++) { + ret = arm_spe__setup_queue(spe, &spe->queues.queue_array[i], i); + if (ret) + return ret; + } + + return 0; +} + +static int arm_spe__update_queues(struct arm_spe *spe) +{ + if (spe->queues.new_data) { + spe->queues.new_data = false; + return arm_spe__setup_queues(spe); + } + return 0; } +static bool arm_spe__is_timeless_decoding(struct arm_spe *spe) +{ + struct evsel *evsel; + struct evlist *evlist = spe->session->evlist; + bool timeless_decoding = true; + + /* + * Circle through the list of event and complain if we find one + * with the time bit set. + */ + evlist__for_each_entry(evlist, evsel) { + if ((evsel->core.attr.sample_type & PERF_SAMPLE_TIME)) + timeless_decoding = false; + } + + return timeless_decoding; +} + +static void arm_spe_set_pid_tid_cpu(struct arm_spe *spe, + struct auxtrace_queue *queue) +{ + struct arm_spe_queue *speq = queue->priv; + pid_t tid; + + tid = machine__get_current_tid(spe->machine, speq->cpu); + if (tid != -1) { + speq->tid = tid; + thread__zput(speq->thread); + } else + speq->tid = queue->tid; + + if ((!speq->thread) && (speq->tid != -1)) { + speq->thread = machine__find_thread(spe->machine, -1, + speq->tid); + } + + if (speq->thread) { + speq->pid = speq->thread->pid_; + if (queue->cpu == -1) + speq->cpu = speq->thread->cpu; + } +} + +static int arm_spe_process_queues(struct arm_spe *spe, u64 timestamp) +{ + unsigned int queue_nr; + u64 ts; + int ret; + + while (1) { + struct auxtrace_queue *queue; + struct arm_spe_queue *speq; + + if (!spe->heap.heap_cnt) + return 0; + + if (spe->heap.heap_array[0].ordinal >= timestamp) + return 0; + + queue_nr = spe->heap.heap_array[0].queue_nr; + queue = &spe->queues.queue_array[queue_nr]; + speq = queue->priv; + + auxtrace_heap__pop(&spe->heap); + + if (spe->heap.heap_cnt) { + ts = spe->heap.heap_array[0].ordinal + 1; + if (ts > timestamp) + ts = timestamp; + } else { + ts = timestamp; + } + + arm_spe_set_pid_tid_cpu(spe, queue); + + ret = arm_spe_run_decoder(speq, &ts); + if (ret < 0) { + auxtrace_heap__add(&spe->heap, queue_nr, ts); + return ret; + } + + if (!ret) { + ret = auxtrace_heap__add(&spe->heap, queue_nr, ts); + if (ret < 0) + return ret; + } else { + speq->on_heap = false; + } + } + + return 0; +} + +static int arm_spe_process_timeless_queues(struct arm_spe *spe, pid_t tid, + u64 time_) +{ + struct auxtrace_queues *queues = &spe->queues; + unsigned int i; + u64 ts = 0; + + for (i = 0; i < queues->nr_queues; i++) { + struct auxtrace_queue *queue = &spe->queues.queue_array[i]; + struct arm_spe_queue *speq = queue->priv; + + if (speq && (tid == -1 || speq->tid == tid)) { + speq->time = time_; + arm_spe_set_pid_tid_cpu(spe, queue); + arm_spe_run_decoder(speq, &ts); + } + } + return 0; +} + +static int arm_spe_process_event(struct perf_session *session, + union perf_event *event, + struct perf_sample *sample, + struct perf_tool *tool) +{ + int err = 0; + u64 timestamp; + struct arm_spe *spe = container_of(session->auxtrace, + struct arm_spe, auxtrace); + + if (dump_trace) + return 0; + + if (!tool->ordered_events) { + pr_err("CoreSight SPE Trace requires ordered events\n"); + return -EINVAL; + } + + if (sample->time && (sample->time != (u64) -1)) + timestamp = sample->time; + else + timestamp = 0; + + if (timestamp || spe->timeless_decoding) { + err = arm_spe__update_queues(spe); + if (err) + return err; + } + + if (spe->timeless_decoding) { + if (event->header.type == PERF_RECORD_EXIT) { + err = arm_spe_process_timeless_queues(spe, + event->fork.tid, + sample->time); + } + } else if (timestamp) { + if (event->header.type == PERF_RECORD_EXIT) { + err = arm_spe_process_queues(spe, timestamp); + if (err) + return err; + } + } + + return err; +} + static int arm_spe_process_auxtrace_event(struct perf_session *session, union perf_event *event, struct perf_tool *tool __maybe_unused) { struct arm_spe *spe = container_of(session->auxtrace, struct arm_spe, auxtrace); - struct auxtrace_buffer *buffer; - off_t data_offset; - int fd = perf_data__fd(session->data); - int err; - if (perf_data__is_pipe(session->data)) { - data_offset = 0; - } else { - data_offset = lseek(fd, 0, SEEK_CUR); - if (data_offset == -1) - return -errno; - } + if (!spe->data_queued) { + struct auxtrace_buffer *buffer; + off_t data_offset; + int fd = perf_data__fd(session->data); + int err; - err = auxtrace_queues__add_event(&spe->queues, session, event, - data_offset, &buffer); - if (err) - return err; - - /* Dump here now we have copied a piped trace out of the pipe */ - if (dump_trace) { - if (auxtrace_buffer__get_data(buffer, fd)) { - arm_spe_dump_event(spe, buffer->data, - buffer->size); - auxtrace_buffer__put_data(buffer); + if (perf_data__is_pipe(session->data)) { + data_offset = 0; + } else { + data_offset = lseek(fd, 0, SEEK_CUR); + if (data_offset == -1) + return -errno; + } + + err = auxtrace_queues__add_event(&spe->queues, session, event, + data_offset, &buffer); + if (err) + return err; + + /* Dump here now we have copied a piped trace out of the pipe */ + if (dump_trace) { + if (auxtrace_buffer__get_data(buffer, fd)) { + arm_spe_dump_event(spe, buffer->data, + buffer->size); + auxtrace_buffer__put_data(buffer); + } } } @@ -139,7 +623,25 @@ static int arm_spe_process_auxtrace_event(struct perf_session *session, static int arm_spe_flush(struct perf_session *session __maybe_unused, struct perf_tool *tool __maybe_unused) { - return 0; + struct arm_spe *spe = container_of(session->auxtrace, struct arm_spe, + auxtrace); + int ret; + + if (dump_trace) + return 0; + + if (!tool->ordered_events) + return -EINVAL; + + ret = arm_spe__update_queues(spe); + if (ret < 0) + return ret; + + if (spe->timeless_decoding) + return arm_spe_process_timeless_queues(spe, -1, + MAX_TIMESTAMP - 1); + + return arm_spe_process_queues(spe, MAX_TIMESTAMP); } static void arm_spe_free_queue(void *priv) @@ -148,6 +650,9 @@ static void arm_spe_free_queue(void *priv) if (!speq) return; + thread__zput(speq->thread); + arm_spe_decoder_free(speq->decoder); + zfree(&speq->event_buf); free(speq); } @@ -188,6 +693,149 @@ static void arm_spe_print_info(__u64 *arr) fprintf(stdout, arm_spe_info_fmts[ARM_SPE_PMU_TYPE], arr[ARM_SPE_PMU_TYPE]); } +struct arm_spe_synth { + struct perf_tool dummy_tool; + struct perf_session *session; +}; + +static int arm_spe_event_synth(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample __maybe_unused, + struct machine *machine __maybe_unused) +{ + struct arm_spe_synth *arm_spe_synth = + container_of(tool, struct arm_spe_synth, dummy_tool); + + return perf_session__deliver_synth_event(arm_spe_synth->session, + event, NULL); +} + +static int arm_spe_synth_event(struct perf_session *session, + struct perf_event_attr *attr, u64 id) +{ + struct arm_spe_synth arm_spe_synth; + + memset(&arm_spe_synth, 0, sizeof(struct arm_spe_synth)); + arm_spe_synth.session = session; + + return perf_event__synthesize_attr(&arm_spe_synth.dummy_tool, attr, 1, + &id, arm_spe_event_synth); +} + +static void arm_spe_set_event_name(struct evlist *evlist, u64 id, + const char *name) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->core.id && evsel->core.id[0] == id) { + if (evsel->name) + zfree(&evsel->name); + evsel->name = strdup(name); + break; + } + } +} + +static int +arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session) +{ + struct evlist *evlist = session->evlist; + struct evsel *evsel; + struct perf_event_attr attr; + bool found = false; + u64 id; + int err; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->core.attr.type == spe->pmu_type) { + found = true; + break; + } + } + + if (!found) { + pr_debug("No selected events with CoreSight Trace data\n"); + return 0; + } + + memset(&attr, 0, sizeof(struct perf_event_attr)); + attr.size = sizeof(struct perf_event_attr); + attr.type = PERF_TYPE_HARDWARE; + attr.sample_type = evsel->core.attr.sample_type & PERF_SAMPLE_MASK; + attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID | + PERF_SAMPLE_PERIOD; + if (spe->timeless_decoding) + attr.sample_type &= ~(u64)PERF_SAMPLE_TIME; + else + attr.sample_type |= PERF_SAMPLE_TIME; + + attr.exclude_user = evsel->core.attr.exclude_user; + attr.exclude_kernel = evsel->core.attr.exclude_kernel; + attr.exclude_hv = evsel->core.attr.exclude_hv; + attr.exclude_host = evsel->core.attr.exclude_host; + attr.exclude_guest = evsel->core.attr.exclude_guest; + attr.sample_id_all = evsel->core.attr.sample_id_all; + attr.read_format = evsel->core.attr.read_format; + + /* create new id val to be a fixed offset from evsel id */ + id = evsel->core.id[0] + 1000000000; + + if (!id) + id = 1; + + /* spe events set */ + if (spe->synth_opts.llc_miss) { + spe->sample_llc_miss = true; + + /* llc-miss */ + err = arm_spe_synth_event(session, &attr, id); + if (err) + return err; + spe->llc_miss_id = id; + arm_spe_set_event_name(evlist, id, "llc-miss"); + id += 1; + } + + if (spe->synth_opts.tlb_miss) { + spe->sample_tlb_miss = true; + + /* tlb-miss */ + err = arm_spe_synth_event(session, &attr, id); + if (err) + return err; + spe->tlb_miss_id = id; + arm_spe_set_event_name(evlist, id, "tlb-miss"); + id += 1; + } + + if (spe->synth_opts.branches) { + spe->sample_branch_miss = true; + + /* branch-miss */ + err = arm_spe_synth_event(session, &attr, id); + if (err) + return err; + spe->branch_miss_id = id; + arm_spe_set_event_name(evlist, id, "branch-miss"); + id += 1; + } + + if (spe->synth_opts.remote_access) { + spe->sample_remote_access = true; + + /* remote-access */ + err = arm_spe_synth_event(session, &attr, id); + if (err) + return err; + spe->remote_access_id = id; + arm_spe_set_event_name(evlist, id, "remote-access"); + id += 1; + } + + return 0; +} + int arm_spe_process_auxtrace_info(union perf_event *event, struct perf_session *session) { @@ -213,6 +861,7 @@ int arm_spe_process_auxtrace_info(union perf_event *event, spe->auxtrace_type = auxtrace_info->type; spe->pmu_type = auxtrace_info->priv[ARM_SPE_PMU_TYPE]; + spe->timeless_decoding = arm_spe__is_timeless_decoding(spe); spe->auxtrace.process_event = arm_spe_process_event; spe->auxtrace.process_auxtrace_event = arm_spe_process_auxtrace_event; spe->auxtrace.flush_events = arm_spe_flush; @@ -222,8 +871,30 @@ int arm_spe_process_auxtrace_info(union perf_event *event, arm_spe_print_info(&auxtrace_info->priv[0]); + if (dump_trace) + return 0; + + if (session->itrace_synth_opts && session->itrace_synth_opts->set) + spe->synth_opts = *session->itrace_synth_opts; + else + itrace_synth_opts__set_default(&spe->synth_opts, false); + + err = arm_spe_synth_events(spe, session); + if (err) + goto err_free_queues; + + err = auxtrace_queues__process_index(&spe->queues, session); + if (err) + goto err_free_queues; + + if (spe->queues.populated) + spe->data_queued = true; + return 0; +err_free_queues: + auxtrace_queues__free(&spe->queues); + session->auxtrace = NULL; err_free: free(spe); return err; diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index eb087e7df6f4..994d5e3c9e4f 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -1279,6 +1279,10 @@ void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts, synth_opts->pwr_events = true; synth_opts->other_events = true; synth_opts->errors = true; + synth_opts->llc_miss = true; + synth_opts->tlb_miss = true; + synth_opts->remote_access = true; + if (no_sample) { synth_opts->period_type = PERF_ITRACE_PERIOD_INSTRUCTIONS; synth_opts->period = 1; @@ -1431,6 +1435,15 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str, goto out_err; p = endptr; break; + case 'm': + synth_opts->llc_miss = true; + break; + case 't': + synth_opts->tlb_miss = true; + break; + case 'a': + synth_opts->remote_access = true; + break; case ' ': case ',': break; diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 749d72cd9c7b..80617b0d044d 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -60,7 +60,7 @@ enum itrace_period_type { * @inject: indicates the event (not just the sample) must be fully synthesized * because 'perf inject' will write it out * @instructions: whether to synthesize 'instructions' events - * @branches: whether to synthesize 'branches' events + * @branches: whether to synthesize 'branches' events (branch misses only on Arm) * @transactions: whether to synthesize events for transactions * @ptwrites: whether to synthesize events for ptwrites * @pwr_events: whether to synthesize power events @@ -74,6 +74,9 @@ enum itrace_period_type { * @callchain: add callchain to 'instructions' events * @thread_stack: feed branches to the thread_stack * @last_branch: add branch context to 'instruction' events + * @llc_miss: whether to synthesize last level cache miss events + * @tlb_miss: whether to synthesize TLB miss events + * @remote_access: whether to synthesize Remote access events * @callchain_sz: maximum callchain size * @last_branch_sz: branch context size * @period: 'instructions' events period @@ -101,6 +104,9 @@ struct itrace_synth_opts { bool callchain; bool thread_stack; bool last_branch; + bool llc_miss; + bool tlb_miss; + bool remote_access; unsigned int callchain_sz; unsigned int last_branch_sz; unsigned long long period; From patchwork Tue Feb 25 11:57:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 11403355 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A2BA61580 for ; Tue, 25 Feb 2020 11:58:51 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 75A3C2176D for ; Tue, 25 Feb 2020 11:58:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="KsqsPTFe" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 75A3C2176D Authentication-Results: mail.kernel.org; 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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6YrS-0004rK-3A; Tue, 25 Feb 2020 11:58:50 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6Yqb-0004Fv-A4 for linux-arm-kernel@lists.infradead.org; Tue, 25 Feb 2020 11:57:58 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B085E11B3; Tue, 25 Feb 2020 03:57:55 -0800 (PST) Received: from e121896.warwick.arm.com (e121896.warwick.arm.com [10.32.36.33]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id AFE943F6CF; Tue, 25 Feb 2020 03:57:52 -0800 (PST) From: James Clark To: adrian.hunter@intel.com, jolsa@redhat.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 3/4] perf report: Add SPE options to --itrace argument Date: Tue, 25 Feb 2020 11:57:38 +0000 Message-Id: <20200225115739.18740-4-james.clark@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200225115739.18740-1-james.clark@arm.com> References: <768a33f2-8694-270e-d3e8-3da4c65e96b3@intel.com> <20200225115739.18740-1-james.clark@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200225_035757_449672_1E0CD159 X-CRM114-Status: UNSURE ( 9.45 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Al Grant , Peter Zijlstra , Arnaldo Carvalho de Melo , Alexander Shishkin , Ingo Molnar , James Clark , Namhyung Kim , nd@arm.com, Will Deacon , Tan Xiaojun MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Tan Xiaojun The previous patch added support in "perf report" for some arm-spe events(llc-miss, tlb-miss, branch-miss, remote_access). This patch adds their help instructions. Signed-off-by: Tan Xiaojun Tested-by: Qi Liu Signed-off-by: James Clark Cc: Will Deacon Cc: Mark Rutland Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Tan Xiaojun Cc: Al Grant Cc: Namhyung Kim --- tools/perf/Documentation/itrace.txt | 5 ++++- tools/perf/util/auxtrace.h | 5 ++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt index 82ff7dad40c2..da3e5ccc039e 100644 --- a/tools/perf/Documentation/itrace.txt +++ b/tools/perf/Documentation/itrace.txt @@ -1,5 +1,5 @@ i synthesize instructions events - b synthesize branches events + b synthesize branches events (branch misses on Arm) c synthesize branches events (calls only) r synthesize branches events (returns only) x synthesize transactions events @@ -9,6 +9,9 @@ of aux-output (refer to perf record) e synthesize error events d create a debug log + m synthesize LLC miss events + t synthesize TLB miss events + a synthesize remote access events g synthesize a call chain (use with i or x) l synthesize last branch entries (use with i or x) s skip initial number of events diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 80617b0d044d..52e148eea7f8 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -587,7 +587,7 @@ void auxtrace__free(struct perf_session *session); #define ITRACE_HELP \ " i: synthesize instructions events\n" \ -" b: synthesize branches events\n" \ +" b: synthesize branches events (branch misses on Arm)\n" \ " c: synthesize branches events (calls only)\n" \ " r: synthesize branches events (returns only)\n" \ " x: synthesize transactions events\n" \ @@ -595,6 +595,9 @@ void auxtrace__free(struct perf_session *session); " p: synthesize power events\n" \ " e: synthesize error events\n" \ " d: create a debug log\n" \ +" m: synthesize LLC miss events\n" \ +" t: synthesize TLB miss events\n" \ +" a: synthesize remote access events\n" \ " g[len]: synthesize a call chain (use with i or x)\n" \ " l[len]: synthesize last branch entries (use with i or x)\n" \ " sNUMBER: skip initial number of events\n" \ From patchwork Tue Feb 25 11:57:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 11403357 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C1DE814E3 for ; 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Tue, 25 Feb 2020 03:57:55 -0800 (PST) From: James Clark To: adrian.hunter@intel.com, jolsa@redhat.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 4/4] perf tools: Support "branch-misses:pp" on arm64 Date: Tue, 25 Feb 2020 11:57:39 +0000 Message-Id: <20200225115739.18740-5-james.clark@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200225115739.18740-1-james.clark@arm.com> References: <768a33f2-8694-270e-d3e8-3da4c65e96b3@intel.com> <20200225115739.18740-1-james.clark@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200225_035758_689254_84FCE1A1 X-CRM114-Status: GOOD ( 15.40 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Al Grant , Peter Zijlstra , Arnaldo Carvalho de Melo , Alexander Shishkin , Ingo Molnar , James Clark , Namhyung Kim , nd@arm.com, Will Deacon , Tan Xiaojun MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Tan Xiaojun At the suggestion of James Clark, use spe to support the precise ip of some events. Currently its support event is: branch-misses. Example usage: $ ./perf record -e branch-misses:pp dd if=/dev/zero of=/dev/null count=10000 (:p/pp/ppp is same for this case.) $ ./perf report --stdio ("--stdio is not necessary") -------------------------------------------------------------------- ... # Samples: 14 of event 'branch-misses:pp' # Event count (approx.): 14 # # Children Self Command Shared Object Symbol # ........ ........ ....... ................. .......................... # 14.29% 14.29% dd [kernel.kallsyms] [k] __arch_copy_from_user 14.29% 14.29% dd libc-2.28.so [.] _dl_addr 7.14% 7.14% dd [kernel.kallsyms] [k] __free_pages 7.14% 7.14% dd [kernel.kallsyms] [k] __pi_memcpy 7.14% 7.14% dd [kernel.kallsyms] [k] pagecache_get_page 7.14% 7.14% dd [kernel.kallsyms] [k] unmap_single_vma 7.14% 7.14% dd dd [.] 0x00000000000025ec 7.14% 7.14% dd ld-2.28.so [.] _dl_lookup_symbol_x 7.14% 7.14% dd ld-2.28.so [.] check_match 7.14% 7.14% dd libc-2.28.so [.] __mpn_rshift 7.14% 7.14% dd libc-2.28.so [.] _nl_intern_locale_data 7.14% 7.14% dd libc-2.28.so [.] read_alias_file ... -------------------------------------------------------------------- Signed-off-by: Tan Xiaojun Suggested-by: James Clark Tested-by: Qi Liu Signed-off-by: James Clark Cc: Will Deacon Cc: Mark Rutland Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Tan Xiaojun Cc: Al Grant Cc: Namhyung Kim --- tools/perf/arch/arm/util/auxtrace.c | 39 +++++++++++++++++++++++++++++ tools/perf/builtin-record.c | 5 ++++ tools/perf/util/arm-spe.c | 9 +++++++ tools/perf/util/arm-spe.h | 3 +++ tools/perf/util/auxtrace.h | 6 +++++ 5 files changed, 62 insertions(+) diff --git a/tools/perf/arch/arm/util/auxtrace.c b/tools/perf/arch/arm/util/auxtrace.c index 0a6e75b8777a..7f412b7894ab 100644 --- a/tools/perf/arch/arm/util/auxtrace.c +++ b/tools/perf/arch/arm/util/auxtrace.c @@ -10,11 +10,25 @@ #include "../../util/auxtrace.h" #include "../../util/debug.h" +#include "../../util/env.h" #include "../../util/evlist.h" #include "../../util/pmu.h" #include "cs-etm.h" #include "arm-spe.h" +#define SPE_ATTR_TS_ENABLE BIT(0) +#define SPE_ATTR_PA_ENABLE BIT(1) +#define SPE_ATTR_PCT_ENABLE BIT(2) +#define SPE_ATTR_JITTER BIT(16) +#define SPE_ATTR_BRANCH_FILTER BIT(32) +#define SPE_ATTR_LOAD_FILTER BIT(33) +#define SPE_ATTR_STORE_FILTER BIT(34) + +#define SPE_ATTR_EV_RETIRED BIT(1) +#define SPE_ATTR_EV_CACHE BIT(3) +#define SPE_ATTR_EV_TLB BIT(5) +#define SPE_ATTR_EV_BRANCH BIT(7) + static struct perf_pmu **find_all_arm_spe_pmus(int *nr_spes, int *err) { struct perf_pmu **arm_spe_pmus = NULL; @@ -108,3 +122,28 @@ struct auxtrace_record *err = 0; return NULL; } + +void auxtrace__preprocess_evlist(struct evlist *evlist) +{ + struct evsel *evsel; + struct perf_pmu *pmu; + + evlist__for_each_entry(evlist, evsel) { + /* Currently only supports precise_ip for branch-misses on arm64 */ + if (!strcmp(perf_env__arch(evlist->env), "arm64") + && evsel->core.attr.config == PERF_COUNT_HW_BRANCH_MISSES + && evsel->core.attr.type == PERF_TYPE_HARDWARE + && evsel->core.attr.precise_ip) + { + pmu = perf_pmu__find("arm_spe_0"); + if (pmu) { + evsel->pmu_name = pmu->name; + evsel->core.attr.type = pmu->type; + evsel->core.attr.config = SPE_ATTR_TS_ENABLE + | SPE_ATTR_BRANCH_FILTER; + evsel->core.attr.config1 = SPE_ATTR_EV_BRANCH; + evsel->core.attr.precise_ip = 0; + } + } + } +} \ No newline at end of file diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 4c301466101b..3bc61f03d572 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -2451,6 +2451,11 @@ int cmd_record(int argc, const char **argv) argc = parse_options(argc, argv, record_options, record_usage, PARSE_OPT_STOP_AT_NON_OPTION); + + if (auxtrace__preprocess_evlist) { + auxtrace__preprocess_evlist(rec->evlist); + } + if (quiet) perf_quiet_option(); diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index 4ef22a0775a9..b21806c97dd8 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -778,6 +778,15 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session) attr.sample_id_all = evsel->core.attr.sample_id_all; attr.read_format = evsel->core.attr.read_format; + /* If it is in the precise ip mode, there is no need to + * synthesize new events. */ + if (!strncmp(evsel->name, "branch-misses", 13)) { + spe->sample_branch_miss = true; + spe->branch_miss_id = evsel->core.id[0]; + + return 0; + } + /* create new id val to be a fixed offset from evsel id */ id = evsel->core.id[0] + 1000000000; diff --git a/tools/perf/util/arm-spe.h b/tools/perf/util/arm-spe.h index 98d3235781c3..8b1fb191d03a 100644 --- a/tools/perf/util/arm-spe.h +++ b/tools/perf/util/arm-spe.h @@ -20,6 +20,8 @@ enum { union perf_event; struct perf_session; struct perf_pmu; +struct evlist; +struct evsel; struct auxtrace_record *arm_spe_recording_init(int *err, struct perf_pmu *arm_spe_pmu); @@ -28,4 +30,5 @@ int arm_spe_process_auxtrace_info(union perf_event *event, struct perf_session *session); struct perf_event_attr *arm_spe_pmu_default_config(struct perf_pmu *arm_spe_pmu); +void arm_spe_precise_ip_support(struct evlist *evlist, struct evsel *evsel); #endif diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 52e148eea7f8..4be56bca54dc 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -584,6 +584,7 @@ void auxtrace__dump_auxtrace_sample(struct perf_session *session, int auxtrace__flush_events(struct perf_session *session, struct perf_tool *tool); void auxtrace__free_events(struct perf_session *session); void auxtrace__free(struct perf_session *session); +void auxtrace__preprocess_evlist(struct evlist *evlist) __attribute__((weak)); #define ITRACE_HELP \ " i: synthesize instructions events\n" \ @@ -731,6 +732,11 @@ void auxtrace__free(struct perf_session *session __maybe_unused) { } +static inline +void auxtrace__preprocess_evlist(struct evlist *evlist __maybe_unused) +{ +} + static inline int auxtrace_index__write(int fd __maybe_unused, struct list_head *head __maybe_unused)