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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A01CC55179 for ; Thu, 29 Oct 2020 07:20:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 04130218AC for ; Thu, 29 Oct 2020 07:20:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="b0+y+yWc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725873AbgJ2HU2 (ORCPT ); Thu, 29 Oct 2020 03:20:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725767AbgJ2HUZ (ORCPT ); Thu, 29 Oct 2020 03:20:25 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D8EE7C08EAE0 for ; Thu, 29 Oct 2020 00:20:24 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id j5so874555plk.7 for ; Thu, 29 Oct 2020 00:20:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8bkoSS1xK4vUXgiGVHSGbJQy30fQpju+yv1hzR4IWpw=; b=b0+y+yWcyyKd5PoZGTpHmpqSB03mjp9yWWeuDyAMgyqZ7FmGVlkFL3LIUs1T8zadzv Po6U6KBwKLyw2kddmvKkawKuy6rHggyOHO7qyZFz1yOQh9dDGPK5bvlcz4IjIzYSzhny 6jN+6Cp2V5mwM6NoSa7QPgtu5Chv+Uj6rFdo2BMcjQbPu1+/175kDAyCc0v3UwtSkR6c eCwBLes15unYmccVLjRYMTlMbPP//Sm0w4n+ABwL+3H4ITM+hp0KO0lNphCqjcXEhzfs YrHF4hRSiVhNlJu0K0DWN91zVjgp/ZYEM1SRAMXYUv9R8Bi78XRwyQ9k9I5Uxwqumi4Q 5pEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8bkoSS1xK4vUXgiGVHSGbJQy30fQpju+yv1hzR4IWpw=; b=LxZOc7XASjzIm/AmA1KFNK4pI8oJTOgwACKv0mdZAr5fHlBVdIzcLLy453pVWBNTjF oPCjiJJG1IzMVZy7japxKRgH4S6LjnP3+JYRC3mVWrRJsmlp4D75PSuJvhvrQnuNBwUb BEMqU+yof1Ylpl1ZqIc0ZV/vrRHurao7RQWv63mSRqYSgvWgJndb22xIC2RluubdLtZt D7rfu8Patb6/1SX/ihErgl1vlHN7HHAMgkH43xe4NO5zK+mSjkJQ9z9pcq0u9WcwNDFN hCyKZS0qQyqyEotF+2Z9+KVIjrKghex9RZWfg8eLkvocrS/et7k9+E47mBumTuoUX49A FmTA== X-Gm-Message-State: AOAM533P1UzdC+yLk59rzimeP1KiCpfheQhmAB5sIN+2doJhmS3aAvx2 aD89vQV5S12bE8Uid5Ls4h+2KQ== X-Google-Smtp-Source: ABdhPJzGU9ae49NY3XBMAl2vFpwFdr2R84svsMb7wjy1BYuNRlL4KVXrSXoHkpXwdvIZNUh79njiag== X-Received: by 2002:a17:902:b488:b029:d4:dbdf:c6a5 with SMTP id y8-20020a170902b488b02900d4dbdfc6a5mr2821699plr.42.1603956024396; Thu, 29 Oct 2020 00:20:24 -0700 (PDT) Received: from localhost ([2600:3c01::f03c:91ff:fe8a:bb03]) by smtp.gmail.com with ESMTPSA id a11sm1773449pfn.125.2020.10.29.00.20.23 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 29 Oct 2020 00:20:23 -0700 (PDT) From: Leo Yan To: Arnaldo Carvalho de Melo , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Andre Przywara , Dave Martin , Wei Li , James Clark , Al Grant , "linux-kernel@vger.kernel.org" Cc: Leo Yan Subject: [PATCH v5 09/21] perf arm-spe: Refactor address packet handling Date: Thu, 29 Oct 2020 15:19:15 +0800 Message-Id: <20201029071927.9308-10-leo.yan@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201029071927.9308-1-leo.yan@linaro.org> References: <20201029071927.9308-1-leo.yan@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch is to refactor address packet handling, it defines macros for address packet's header and payload, these macros are used by decoder and the dump flow. Signed-off-by: Leo Yan Reviewed-by: Andre Przywara --- .../util/arm-spe-decoder/arm-spe-decoder.c | 29 ++++++++------- .../arm-spe-decoder/arm-spe-pkt-decoder.c | 26 +++++++------- .../arm-spe-decoder/arm-spe-pkt-decoder.h | 35 ++++++++++++------- 3 files changed, 48 insertions(+), 42 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 cc18a1e8c212..776b3e6628bb 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c @@ -24,36 +24,35 @@ static u64 arm_spe_calc_ip(int index, u64 payload) { - u8 *addr = (u8 *)&payload; - int ns, el; + u64 ns, el; /* Instruction virtual address or Branch target address */ if (index == SPE_ADDR_PKT_HDR_INDEX_INS || index == SPE_ADDR_PKT_HDR_INDEX_BRANCH) { - ns = addr[7] & SPE_ADDR_PKT_NS; - el = (addr[7] & SPE_ADDR_PKT_EL_MASK) >> SPE_ADDR_PKT_EL_OFFSET; + ns = SPE_ADDR_PKT_GET_NS(payload); + el = SPE_ADDR_PKT_GET_EL(payload); + + /* Clean highest byte */ + payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload); /* Fill highest byte for EL1 or EL2 (VHE) mode */ if (ns && (el == SPE_ADDR_PKT_EL1 || el == SPE_ADDR_PKT_EL2)) - addr[7] = 0xff; - /* Clean highest byte for other cases */ - else - addr[7] = 0x0; + payload |= 0xffULL << SPE_ADDR_PKT_ADDR_BYTE7_SHIFT; /* Data access virtual address */ } else if (index == SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT) { + /* Clean tags */ + payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload); + /* Fill highest byte if bits [48..55] is 0xff */ - if (addr[6] == 0xff) - addr[7] = 0xff; - /* Otherwise, cleanup tags */ - else - addr[7] = 0x0; + if (SPE_ADDR_PKT_ADDR_GET_BYTE_6(payload) == 0xffULL) + payload |= 0xffULL << SPE_ADDR_PKT_ADDR_BYTE7_SHIFT; /* Data access physical address */ } else if (index == SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS) { - /* Cleanup byte 7 */ - addr[7] = 0x0; + /* Clean highest byte */ + payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload); } else { pr_err("unsupported address packet index: 0x%x\n", index); } diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c index 9db26e30d028..0d4b86fb8fc0 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c +++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c @@ -13,9 +13,6 @@ #include "arm-spe-pkt-decoder.h" -#define NS_FLAG BIT(63) -#define EL_FLAG (BIT(62) | BIT(61)) - #if __BYTE_ORDER == __BIG_ENDIAN #define le16_to_cpu bswap_16 #define le32_to_cpu bswap_32 @@ -167,10 +164,11 @@ static int arm_spe_get_addr(const unsigned char *buf, size_t len, const unsigned char ext_hdr, struct arm_spe_pkt *packet) { packet->type = ARM_SPE_ADDRESS; + if (ext_hdr) - packet->index = ((buf[0] & 0x3) << 3) | (buf[1] & 0x7); + packet->index = SPE_HDR_EXTENDED_INDEX(buf[0], buf[1]); else - packet->index = buf[0] & 0x7; + packet->index = SPE_HDR_SHORT_INDEX(buf[0]); return arm_spe_get_payload(buf, len, ext_hdr, packet); } @@ -278,20 +276,20 @@ static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet, int err = 0; switch (idx) { - case 0: - case 1: - ns = !!(packet->payload & NS_FLAG); - el = (packet->payload & EL_FLAG) >> 61; - payload &= ~(0xffULL << 56); + case SPE_ADDR_PKT_HDR_INDEX_INS: + case SPE_ADDR_PKT_HDR_INDEX_BRANCH: + ns = !!SPE_ADDR_PKT_GET_NS(payload); + el = SPE_ADDR_PKT_GET_EL(payload); + payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload); return arm_spe_pkt_snprintf(&err, &buf, &buf_len, "%s 0x%llx el%d ns=%d", (idx == 1) ? "TGT" : "PC", payload, el, ns); - case 2: + case SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT: return arm_spe_pkt_snprintf(&err, &buf, &buf_len, "VA 0x%llx", payload); - case 3: - ns = !!(packet->payload & NS_FLAG); - payload &= ~(0xffULL << 56); + case SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS: + ns = !!SPE_ADDR_PKT_GET_NS(payload); + payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload); return arm_spe_pkt_snprintf(&err, &buf, &buf_len, "PA 0x%llx ns=%d", payload, ns); default: 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 129f43405eb1..f97d6840be3a 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 @@ -56,19 +56,28 @@ struct arm_spe_pkt { #define SPE_HEADER0_COUNTER 0x98 #define SPE_HEADER1_ALIGNMENT 0x0 -#define SPE_ADDR_PKT_HDR_INDEX_INS (0x0) -#define SPE_ADDR_PKT_HDR_INDEX_BRANCH (0x1) -#define SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT (0x2) -#define SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS (0x3) - -#define SPE_ADDR_PKT_NS BIT(7) -#define SPE_ADDR_PKT_CH BIT(6) -#define SPE_ADDR_PKT_EL_OFFSET (5) -#define SPE_ADDR_PKT_EL_MASK (0x3 << SPE_ADDR_PKT_EL_OFFSET) -#define SPE_ADDR_PKT_EL0 (0) -#define SPE_ADDR_PKT_EL1 (1) -#define SPE_ADDR_PKT_EL2 (2) -#define SPE_ADDR_PKT_EL3 (3) +#define SPE_HDR_SHORT_INDEX(h) ((h) & GENMASK_ULL(2, 0)) +#define SPE_HDR_EXTENDED_INDEX(h0, h1) (((h0) & GENMASK_ULL(1, 0)) << 3 | \ + SPE_HDR_SHORT_INDEX(h1)) + +/* Address packet header */ +#define SPE_ADDR_PKT_HDR_INDEX_INS 0x0 +#define SPE_ADDR_PKT_HDR_INDEX_BRANCH 0x1 +#define SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT 0x2 +#define SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS 0x3 + +/* Address packet payload */ +#define SPE_ADDR_PKT_ADDR_BYTE7_SHIFT 56 +#define SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(v) ((v) & GENMASK_ULL(55, 0)) +#define SPE_ADDR_PKT_ADDR_GET_BYTE_6(v) (((v) & GENMASK_ULL(55, 48)) >> 48) + +#define SPE_ADDR_PKT_GET_NS(v) (((v) & BIT_ULL(63)) >> 63) +#define SPE_ADDR_PKT_GET_EL(v) (((v) & GENMASK_ULL(62, 61)) >> 61) + +#define SPE_ADDR_PKT_EL0 0 +#define SPE_ADDR_PKT_EL1 1 +#define SPE_ADDR_PKT_EL2 2 +#define SPE_ADDR_PKT_EL3 3 const char *arm_spe_pkt_name(enum arm_spe_pkt_type); -- 2.17.1