From nobody Tue Dec 16 21:48:38 2025 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 22D39C88CB9 for ; Thu, 24 Aug 2023 01:37:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239079AbjHXBg4 (ORCPT ); Wed, 23 Aug 2023 21:36:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239054AbjHXBgX (ORCPT ); Wed, 23 Aug 2023 21:36:23 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2887D10F2; Wed, 23 Aug 2023 18:36:21 -0700 (PDT) Received: from localhost.localdomain (unknown [IPv6:2a02:8010:65b5:0:1ac0:4dff:feee:236a]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: alarumbe) by madras.collabora.co.uk (Postfix) with ESMTPSA id 6430C6607234; Thu, 24 Aug 2023 02:36:19 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1692840979; bh=Ofyfli6e0NuNza46GsWbQjyNGXuy8Dx7UnNH9i1R+0o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IsjnyPjxpThYbHO4jJU0PF2/Si80HD1hN0r/LOsLU0PWCav57n9AMRwiCgKvxlw2P as1kh/y45IjLoqhQvOSExROP8mX4OLxfiQiwT9viI5BIG3p9lEKk98GscqyRJLGlU9 Uq2i/7hgH9cLowRmIXCKdeSJs+rDr8WO4YlYqkVAbksI1dvvtg0JWQhsw9E1DNx3cs y9eT/BP21ABBd8Vh9pCuZcn438tc2o17y8haDEsmXkJf/GMnLeiqjAv8bYmhqmuone 1faJmdEB4MfUSjMnal420PXcCVy7JKuNJkGBiI69c15kObb+36TjCRm/Ir8cbKHK1q adXeVWgRvAcNw== From: =?UTF-8?q?Adri=C3=A1n=20Larumbe?= To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch, robdclark@gmail.com, quic_abhinavk@quicinc.com, dmitry.baryshkov@linaro.org, sean@poorly.run, marijn.suijten@somainline.org, robh@kernel.org, steven.price@arm.com Cc: adrian.larumbe@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, healych@amazon.com, kernel@collabora.com Subject: [PATCH v2 1/6] drm/panfrost: Add cycle count GPU register definitions Date: Thu, 24 Aug 2023 02:34:44 +0100 Message-ID: <20230824013604.466224-2-adrian.larumbe@collabora.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230824013604.466224-1-adrian.larumbe@collabora.com> References: <20230824013604.466224-1-adrian.larumbe@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These GPU registers will be used when programming the cycle counter, which we need for providing accurate fdinfo drm-cycles values to user space. Signed-off-by: Adri=C3=A1n Larumbe Reviewed-by: Boris Brezillon Reviewed-by: Steven Price --- drivers/gpu/drm/panfrost/panfrost_regs.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_regs.h b/drivers/gpu/drm/pan= frost/panfrost_regs.h index 919f44ac853d..55ec807550b3 100644 --- a/drivers/gpu/drm/panfrost/panfrost_regs.h +++ b/drivers/gpu/drm/panfrost/panfrost_regs.h @@ -46,6 +46,8 @@ #define GPU_CMD_SOFT_RESET 0x01 #define GPU_CMD_PERFCNT_CLEAR 0x03 #define GPU_CMD_PERFCNT_SAMPLE 0x04 +#define GPU_CMD_CYCLE_COUNT_START 0x05 +#define GPU_CMD_CYCLE_COUNT_STOP 0x06 #define GPU_CMD_CLEAN_CACHES 0x07 #define GPU_CMD_CLEAN_INV_CACHES 0x08 #define GPU_STATUS 0x34 @@ -73,6 +75,9 @@ #define GPU_PRFCNT_TILER_EN 0x74 #define GPU_PRFCNT_MMU_L2_EN 0x7c =20 +#define GPU_CYCLE_COUNT_LO 0x90 +#define GPU_CYCLE_COUNT_HI 0x94 + #define GPU_THREAD_MAX_THREADS 0x0A0 /* (RO) Maximum number of threads pe= r core */ #define GPU_THREAD_MAX_WORKGROUP_SIZE 0x0A4 /* (RO) Maximum workgroup size= */ #define GPU_THREAD_MAX_BARRIER_SIZE 0x0A8 /* (RO) Maximum threads waiting = at a barrier */ --=20 2.42.0