From patchwork Wed Oct 26 22:20:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umesh Nerlige Ramappa X-Patchwork-Id: 13021309 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2DEE6C38A2D for ; Wed, 26 Oct 2022 22:22:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 13DC210E596; Wed, 26 Oct 2022 22:22:16 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 66A9710E55B for ; Wed, 26 Oct 2022 22:21:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666822867; x=1698358867; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=S6TU5IPCKqugKuXPsfWSoRIT1EXNM/yiDDISPsvQZ4M=; b=nV8ia5cRdWLoufAkdR4A+NdRiSLLHAwLNj4uWe22YJs1S5OMaXk6fDLV 1DYO9FSG5JOsAYV0GYtKfFkv+UAJHF4B3qvVYSPi1ZVL8qK+eUKO80SMN MHBWM9VV5PPxOKsEv3C9rIn4B9gdDx2NEPPjhkhcD+OBenRMG7+sDe4mL 1vw8ZUOZRD2eQ5Gp0nGiZIwoSHAzN7G9iPvtAVGWN0tLQ/p9Avvi3ew/h MRjwPUd1QQEAJ0i2kigC8TdYx05/EM/ru+ZhPNF4RNGyCvEeDGp016zFk I+KV0q/R4FZVKe6g/mlyY6N7b0LcFvqO/smVqOtH/j+0rN4ARc4pqqtZH g==; X-IronPort-AV: E=McAfee;i="6500,9779,10512"; a="394390435" X-IronPort-AV: E=Sophos;i="5.95,215,1661842800"; d="scan'208";a="394390435" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2022 15:21:05 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10512"; a="721431392" X-IronPort-AV: E=Sophos;i="5.95,215,1661842800"; d="scan'208";a="721431392" Received: from dut042-dg2frd.fm.intel.com ([10.105.19.4]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2022 15:21:05 -0700 From: Umesh Nerlige Ramappa To: intel-gfx@lists.freedesktop.org Date: Wed, 26 Oct 2022 22:20:59 +0000 Message-Id: <20221026222102.5526-14-umesh.nerlige.ramappa@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221026222102.5526-1-umesh.nerlige.ramappa@intel.com> References: <20221026222102.5526-1-umesh.nerlige.ramappa@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v6 13/16] drm/i915/perf: Save/restore EU flex counters across reset 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" If a drm client is killed, then hw contexts used by the client are reset immediately. This reset clears the EU flex counter configuration. If an OA use case is running in parallel, it would start seeing zeroed eu counter values following the reset even if the drm client is restarted. Save/restore the EU flex counter config so that the EU counters can be monitored continuously across resets. v2: - Save/restore eu flex config only for gen12, as for pre-gen12, these are saved and restored in the context image. Signed-off-by: Umesh Nerlige Ramappa Reviewed-by: Ashutosh Dixit --- drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 34ef4f36e660..a419d60166c8 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -392,6 +392,16 @@ static int guc_mmio_regset_init(struct temp_regset *regset, else ret |= GUC_MMIO_REG_ADD(gt, regset, GEN9_LNCFCMOCS(i), false); + if (GRAPHICS_VER(engine->i915) >= 12) { + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL0, false); + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL1, false); + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL2, false); + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL3, false); + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL4, false); + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL5, false); + ret |= GUC_MMIO_REG_ADD(gt, regset, EU_PERF_CNTL6, false); + } + return ret ? -1 : 0; }