From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 125734431 for ; Wed, 15 Mar 2023 12:18:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8DB6CC433EF; Wed, 15 Mar 2023 12:18:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678882698; bh=VuJPSk0fSZ4Qb+ZdT12vmh2gF/ChbUZMjlUTVmlXB04=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rb9L5lTzTn2AzGpte2oTOxvf9fxtISZNRrefkOLURv4RlFETtvXpD8wyucYBIbS2r U6IX6TFa2TeA1qZanjr6jUrLxet1PDOP1lG+ijVgoMuQdG60+IHsf7cL3g3U90FRUq CWjuI2m4eRwCPL4u8a47OFxfCzXTmJnFbLURZDuE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dmitry Baryshkov , Rob Clark , Sasha Levin Subject: [PATCH 5.4 36/68] drm/msm/a5xx: fix setting of the CP_PREEMPT_ENABLE_LOCAL register Date: Wed, 15 Mar 2023 13:12:30 +0100 Message-Id: <20230315115727.526431759@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230315115726.103942885@linuxfoundation.org> References: <20230315115726.103942885@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Dmitry Baryshkov [ Upstream commit a7a4c19c36de1e4b99b06e4060ccc8ab837725bc ] Rather than writing CP_PREEMPT_ENABLE_GLOBAL twice, follow the vendor kernel and set CP_PREEMPT_ENABLE_LOCAL register instead. a5xx_submit() will override it during submission, but let's get the sequence correct. Fixes: b1fc2839d2f9 ("drm/msm: Implement preemption for A5XX targets") Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/522638/ Link: https://lore.kernel.org/r/20230214020956.164473-2-dmitry.baryshkov@linaro.org Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index e3579e5ffa146..593b8d83179c9 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -135,8 +135,8 @@ static void a5xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, OUT_RING(ring, 1); /* Enable local preemption for finegrain preemption */ - OUT_PKT7(ring, CP_PREEMPT_ENABLE_GLOBAL, 1); - OUT_RING(ring, 0x02); + OUT_PKT7(ring, CP_PREEMPT_ENABLE_LOCAL, 1); + OUT_RING(ring, 0x1); /* Allow CP_CONTEXT_SWITCH_YIELD packets in the IB2 */ OUT_PKT7(ring, CP_YIELD_ENABLE, 1); -- 2.39.2