From 736a9327365644b460e4498b1ce172ca411efcbc Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Sun, 9 Apr 2023 04:13:29 +0300 Subject: [PATCH] drm/msm/a5xx: really check for A510 in a5xx_gpu_init The commit 010c8bbad2cb ("drm: msm: adreno: Disable preemption on Adreno 510") added special handling for a510 (this SKU doesn't seem to support preemption, so the driver should clamp nr_rings to 1). However the gpu->revn is not yet set (it is set later, in adreno_gpu_init()) and thus the condition is always false. Check config->rev instead. Fixes: 010c8bbad2cb ("drm: msm: adreno: Disable preemption on Adreno 510") Reported-by: Adam Skladowski Signed-off-by: Dmitry Baryshkov Tested-by: Adam Skladowski Patchwork: https://patchwork.freedesktop.org/patch/531511/ Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index 1e8d2982d603..a99310b68793 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -1743,6 +1743,7 @@ struct msm_gpu *a5xx_gpu_init(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct platform_device *pdev = priv->gpu_pdev; + struct adreno_platform_config *config = pdev->dev.platform_data; struct a5xx_gpu *a5xx_gpu = NULL; struct adreno_gpu *adreno_gpu; struct msm_gpu *gpu; @@ -1769,7 +1770,7 @@ struct msm_gpu *a5xx_gpu_init(struct drm_device *dev) nr_rings = 4; - if (adreno_is_a510(adreno_gpu)) + if (adreno_cmp_rev(ADRENO_REV(5, 1, 0, ANY_ID), config->rev)) nr_rings = 1; ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, nr_rings);