[PATCH 6.18 203/641] drm/msm/a2xx: fix pixel shader start on A225

Greg Kroah-Hartman
2026-02-25T01:45:39Z

6.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

[ Upstream commit 6a7b0a670ba4d283285d76d45233cbecc5af5e40 ]

A225 has a different PixelShader start address, write correct address
while initializing GPU.

Fixes: 21af872cd8c6 ("drm/msm/adreno: add a2xx")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/689906/
Message-ID: <20251121-a225-v1-1-a1bab651d186@oss.qualcomm.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
index 963c0f669ee50..e67ed58aa3d8f 100644
--- a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
@@ -77,7 +77,10 @@ static bool a2xx_me_init(struct msm_gpu *gpu)

/* Vertex and Pixel Shader Start Addresses in instructions
* (3 DWORDS per instruction) */
- OUT_RING(ring, 0x80000180);
+ if (adreno_is_a225(adreno_gpu))
+ OUT_RING(ring, 0x80000300);
+ else
+ OUT_RING(ring, 0x80000180);
/* Maximum Contexts */
OUT_RING(ring, 0x00000001);
/* Write Confirm Interval and The CP will wait the
--
2.51.0