From: Alex Deucher Date: Thu, 9 Mar 2023 20:28:25 +0000 (-0500) Subject: drm/amdgpu: add support for new GFX shadow size query X-Git-Tag: v6.5-rc1~153^2~7^2~760 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1ba91b54a9051205c2110ed43a7dc5650d49ca0e;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: add support for new GFX shadow size query Use the new callback to fetch the data. Return an error if not supported. UMDs should use this query to check whether shadow buffers are supported and if so what size they should be. v2: return an error rather than a zerod structure. v3: drop GDS, move into dev_info structure. Data will be 0 if not supported. v4: drop local variable r Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index a5bae7eb993a0..1d3b224b8b289 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -876,6 +876,19 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) dev_info->gl2c_cache_size = adev->gfx.config.gc_gl2c_per_gpu; dev_info->mall_size = adev->gmc.mall_size; + + if (adev->gfx.funcs->get_gfx_shadow_info) { + struct amdgpu_gfx_shadow_info shadow_info; + + ret = amdgpu_gfx_get_gfx_shadow_info(adev, &shadow_info); + if (!ret) { + dev_info->shadow_size = shadow_info.shadow_size; + dev_info->shadow_alignment = shadow_info.shadow_alignment; + dev_info->csa_size = shadow_info.csa_size; + dev_info->csa_alignment = shadow_info.csa_alignment; + } + } + ret = copy_to_user(out, dev_info, min((size_t)size, sizeof(*dev_info))) ? -EFAULT : 0; kfree(dev_info);