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=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 11390C433E2 for ; Sat, 18 Jul 2020 00:04:45 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 DE19F20759 for ; Sat, 18 Jul 2020 00:04:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DE19F20759 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 438226E2E4; Sat, 18 Jul 2020 00:04:44 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id A163C6E2DC for ; Sat, 18 Jul 2020 00:04:42 +0000 (UTC) IronPort-SDR: OQVFGcdHpg7jTLfkOoFirJzKu1m2MMZvHRiX+5hTqeBSxUUdm5O6QsZr1VDtfFrFVMyX/3GaFD 9NCiRXXnhEXA== X-IronPort-AV: E=McAfee;i="6000,8403,9685"; a="129778159" X-IronPort-AV: E=Sophos;i="5.75,364,1589266800"; d="scan'208";a="129778159" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jul 2020 17:04:38 -0700 IronPort-SDR: dzCPBD1e9SwEAqwa+3D3VRpPm54wtnIablFM32TpMn8bm76+KAA+hP0HO1UWqlfKCDUjFLQ0Dn 2nJ5z0uv4rVQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,364,1589266800"; d="scan'208";a="270941289" Received: from orsosgc001.ra.intel.com ([10.23.184.150]) by fmsmga008.fm.intel.com with ESMTP; 17 Jul 2020 17:04:38 -0700 From: Umesh Nerlige Ramappa To: intel-gfx@lists.freedesktop.org Date: Fri, 17 Jul 2020 17:04:36 -0700 Message-Id: <20200718000437.69033-4-umesh.nerlige.ramappa@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200718000437.69033-1-umesh.nerlige.ramappa@intel.com> References: <20200718000437.69033-1-umesh.nerlige.ramappa@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 3/4] drm/i915/perf: Whitelist OA counter and buffer registers X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Piotr Maciejewski It is useful to have markers in the OA reports to identify triggered reports. Whitelist some OA counters that can be used as markers. A triggered report can be found faster if we can sample the HW tail and head registers when the report was triggered. Whitelist OA buffer specific registers. v2: - Bump up the perf revision (Lionel) - Use indexing for counters (Lionel) - Fix selftest for oa ticking register (Umesh) Signed-off-by: Piotr Maciejewski Signed-off-by: Umesh Nerlige Ramappa --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 34 +++++++++++++++++++ .../gpu/drm/i915/gt/selftest_workarounds.c | 15 +++++++- drivers/gpu/drm/i915/i915_perf.c | 5 ++- drivers/gpu/drm/i915/i915_reg.h | 10 ++++++ 4 files changed, 62 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 582a2c8cd219..5dfa3177d216 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1370,6 +1370,23 @@ static void gen9_whitelist_build_performance_counters(struct i915_wa_list *w) /* OA buffer trigger report 2/6 used by performance query */ whitelist_reg(w, OAREPORTTRIG2); whitelist_reg(w, OAREPORTTRIG6); + + /* Performance counters A18-20 used by tbs marker query */ + whitelist_reg_ext(w, OA_PERF_COUNTER_A(18), + RING_FORCE_TO_NONPRIV_ACCESS_RW | + RING_FORCE_TO_NONPRIV_RANGE_4); + + whitelist_reg(w, OA_PERF_COUNTER_A(20)); + whitelist_reg(w, OA_PERF_COUNTER_A_UPPER(20)); + + /* Read access to gpu ticks */ + whitelist_reg_ext(w, GEN8_GPU_TICKS, + RING_FORCE_TO_NONPRIV_ACCESS_RD); + + /* Read access to: oa status, head, tail, buffer settings */ + whitelist_reg_ext(w, GEN8_OASTATUS, + RING_FORCE_TO_NONPRIV_ACCESS_RD | + RING_FORCE_TO_NONPRIV_RANGE_4); } static void gen12_whitelist_build_performance_counters(struct i915_wa_list *w) @@ -1377,6 +1394,23 @@ static void gen12_whitelist_build_performance_counters(struct i915_wa_list *w) /* OA buffer trigger report 2/6 used by performance query */ whitelist_reg(w, GEN12_OAG_OAREPORTTRIG2); whitelist_reg(w, GEN12_OAG_OAREPORTTRIG6); + + /* Performance counters A18-20 used by tbs marker query */ + whitelist_reg_ext(w, GEN12_OAG_PERF_COUNTER_A(18), + RING_FORCE_TO_NONPRIV_ACCESS_RW | + RING_FORCE_TO_NONPRIV_RANGE_4); + + whitelist_reg(w, GEN12_OAG_PERF_COUNTER_A(20)); + whitelist_reg(w, GEN12_OAG_PERF_COUNTER_A_UPPER(20)); + + /* Read access to gpu ticks */ + whitelist_reg_ext(w, GEN12_OAG_GPU_TICKS, + RING_FORCE_TO_NONPRIV_ACCESS_RD); + + /* Read access to: oa status, head, tail, buffer settings */ + whitelist_reg_ext(w, GEN12_OAG_OASTATUS, + RING_FORCE_TO_NONPRIV_ACCESS_RD | + RING_FORCE_TO_NONPRIV_RANGE_4); } static void gen9_whitelist_build(struct i915_wa_list *w) diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c index febc9e6692ba..5e0e839928f9 100644 --- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c +++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c @@ -431,6 +431,19 @@ static bool timestamp(const struct intel_engine_cs *engine, u32 reg) } } +static bool oa_gpu_ticks(u32 reg) +{ + reg = reg & ~RING_FORCE_TO_NONPRIV_ACCESS_MASK; + switch (reg) { + case 0x2910: + case 0xda90: + return true; + + default: + return false; + } +} + static bool ro_register(u32 reg) { if ((reg & RING_FORCE_TO_NONPRIV_ACCESS_MASK) == @@ -511,7 +524,7 @@ static int check_dirty_whitelist(struct intel_context *ce) if (wo_register(engine, reg)) continue; - if (timestamp(engine, reg)) + if (timestamp(engine, reg) || oa_gpu_ticks(reg)) continue; /* timestamps are expected to autoincrement */ ro_reg = ro_register(reg); diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 1a72565d1928..15f31c250ca9 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -4445,8 +4445,11 @@ int i915_perf_ioctl_version(void) * * 6: Whitelist OATRIGGER registers to allow user to trigger reports * into the OA buffer. + * + * 7: Whitelist OA buffer head/tail registers for user to identify the + * location of triggered reports into the OA buffer. */ - return 6; + return 7; } #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 1638f1282541..eeb41de84a0f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -675,6 +675,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define GEN7_OASTATUS2_HEAD_MASK 0xffffffc0 #define GEN7_OASTATUS2_MEM_SELECT_GGTT (1 << 0) /* 0: PPGTT, 1: GGTT */ +#define GEN8_GPU_TICKS _MMIO(0x2910) #define GEN8_OASTATUS _MMIO(0x2b08) #define GEN8_OASTATUS_OVERRUN_STATUS (1 << 3) #define GEN8_OASTATUS_COUNTER_OVERFLOW (1 << 2) @@ -733,6 +734,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define GEN12_OAG_OA_DEBUG_DISABLE_GO_1_0_REPORTS (1 << 2) #define GEN12_OAG_OA_DEBUG_DISABLE_CTX_SWITCH_REPORTS (1 << 1) +#define GEN12_OAG_GPU_TICKS _MMIO(0xda90) #define GEN12_OAG_OASTATUS _MMIO(0xdafc) #define GEN12_OAG_OASTATUS_COUNTER_OVERFLOW (1 << 2) #define GEN12_OAG_OASTATUS_BUFFER_OVERFLOW (1 << 1) @@ -974,6 +976,14 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define OAREPORTTRIG8_NOA_SELECT_6_SHIFT 24 #define OAREPORTTRIG8_NOA_SELECT_7_SHIFT 28 +/* Performance counters registers */ +#define OA_PERF_COUNTER_A(idx) _MMIO(0x2800 + 8 * (idx)) +#define OA_PERF_COUNTER_A_UPPER(idx) _MMIO(0x2800 + 8 * (idx) + 4) + +/* Gen12 Performance counters registers */ +#define GEN12_OAG_PERF_COUNTER_A(idx) _MMIO(0xD980 + 8 * (idx)) +#define GEN12_OAG_PERF_COUNTER_A_UPPER(idx) _MMIO(0xD980 + 8 * (idx) + 4) + /* Same layout as OASTARTTRIGX */ #define GEN12_OAG_OASTARTTRIG1 _MMIO(0xd900) #define GEN12_OAG_OASTARTTRIG2 _MMIO(0xd904) -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx