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Mon, 10 Nov 2025 08:38:16 -0800 (PST) X-Google-Smtp-Source: AGHT+IFpeeLzlAYES/pvtPhYhWt6lEiwIUScD1B6YRIb/1r23lLyKUJQumTRvtgD/qeTqkbN1zcfMw== X-Received: by 2002:a17:90b:3d8d:b0:340:c64d:38d3 with SMTP id 98e67ed59e1d1-3436cba90e9mr15119892a91.12.1762792695560; Mon, 10 Nov 2025 08:38:15 -0800 (PST) Received: from hu-akhilpo-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3434c337b20sm11468922a91.13.2025.11.10.08.38.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Nov 2025 08:38:15 -0800 (PST) From: Akhil P Oommen Date: Mon, 10 Nov 2025 22:07:07 +0530 Subject: [PATCH v2 01/21] drm/msm/a6xx: Flush LRZ cache before PT switch Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251110-kaana-gpu-support-v2-1-bef18acd5e94@oss.qualcomm.com> References: <20251110-kaana-gpu-support-v2-0-bef18acd5e94@oss.qualcomm.com> In-Reply-To: <20251110-kaana-gpu-support-v2-0-bef18acd5e94@oss.qualcomm.com> To: Rob Clark , Bjorn Andersson , Konrad Dybcio , Sean Paul , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , Jonathan Marek , Jordan Crouse , Will Deacon , Robin Murphy , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Connor Abbott Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, Akhil P Oommen X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; 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Update a6xx_set_pagetable() to do this. While we are at it, sync both BV and BR before issuing a CP_RESET_CONTEXT_STATE command, to match the downstream sequence. Fixes: af66706accdf ("drm/msm/a6xx: Add skeleton A7xx support") Signed-off-by: Akhil P Oommen --- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index b8f8ae940b55..6f7ed07670b1 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -224,7 +224,7 @@ static void a6xx_set_pagetable(struct a6xx_gpu *a6xx_gpu, OUT_RING(ring, submit->seqno - 1); OUT_PKT7(ring, CP_THREAD_CONTROL, 1); - OUT_RING(ring, CP_SET_THREAD_BOTH); + OUT_RING(ring, CP_THREAD_CONTROL_0_SYNC_THREADS | CP_SET_THREAD_BOTH); /* Reset state used to synchronize BR and BV */ OUT_PKT7(ring, CP_RESET_CONTEXT_STATE, 1); @@ -235,7 +235,13 @@ static void a6xx_set_pagetable(struct a6xx_gpu *a6xx_gpu, CP_RESET_CONTEXT_STATE_0_RESET_GLOBAL_LOCAL_TS); OUT_PKT7(ring, CP_THREAD_CONTROL, 1); - OUT_RING(ring, CP_SET_THREAD_BR); + OUT_RING(ring, CP_THREAD_CONTROL_0_SYNC_THREADS | CP_SET_THREAD_BOTH); + + OUT_PKT7(ring, CP_EVENT_WRITE, 1); + OUT_RING(ring, LRZ_FLUSH); + + OUT_PKT7(ring, CP_THREAD_CONTROL, 1); + OUT_RING(ring, CP_THREAD_CONTROL_0_SYNC_THREADS | CP_SET_THREAD_BR); } if (!sysprof) { -- 2.51.0