From: Bjorn Andersson Date: Sun, 10 Nov 2024 17:33:41 +0000 (-0800) Subject: drm/msm/adreno: Setup SMMU aparture for per-process page table X-Git-Tag: v6.13-rc1~139^2~1^2~1 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=98e5b7f98356cef2f13b54862ca9ac016b71ff06;p=thirdparty%2Fkernel%2Flinux.git drm/msm/adreno: Setup SMMU aparture for per-process page table Support for per-process page tables requires the SMMU aparture to be setup such that the GPU can make updates with the SMMU. On some targets this is done statically in firmware, on others it's expected to be requested in runtime by the driver, through a SCM call. One place where configuration is expected to be done dynamically is the QCS6490 rb3gen2. The downstream driver does this unconditioanlly on any A6xx and newer, so follow suite and make the call. Signed-off-by: Bjorn Andersson Reviewed-by: Rob Clark Link: https://lore.kernel.org/r/20241110-adreno-smmu-aparture-v2-2-9b1fb2ee41d4@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 465a4cd14a435..3a40b38f24670 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -572,8 +572,19 @@ struct drm_gem_object *adreno_fw_create_bo(struct msm_gpu *gpu, int adreno_hw_init(struct msm_gpu *gpu) { + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + int ret; + VERB("%s", gpu->name); + if (adreno_gpu->info->family >= ADRENO_6XX_GEN1 && + qcom_scm_set_gpu_smmu_aperture_is_available()) { + /* We currently always use context bank 0, so hard code this */ + ret = qcom_scm_set_gpu_smmu_aperture(0); + if (ret) + DRM_DEV_ERROR(gpu->dev->dev, "unable to set SMMU aperture: %d\n", ret); + } + for (int i = 0; i < gpu->nr_rings; i++) { struct msm_ringbuffer *ring = gpu->rb[i];