From c034426671d0aa3eed9a7cc924bdd2ae3b76fd5d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Timur=20Krist=C3=B3f?= Date: Fri, 14 Nov 2025 09:26:08 -0500 Subject: [PATCH] drm/amdgpu: Use amdgpu by default on CIK dedicated GPUs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The amdgpu driver has been working well on CIK dGPUs for years. Now that the DC analog connector support landed, amdgpu is at feature parity with the old radeon driver on CIK dGPUs. Enabling the amdgpu driver by default for CIK dGPUs has the following benefits: - More stable OpenGL support through RadeonSI - Vulkan support through RADV - Improved performance - Better display features through DC Users who want to keep using the old driver can do so using: amdgpu.cik_support=0 radeon.cik_support=1 v2: - Update documentation in Kconfig file v3: - Rebase documentation updates (Alex) Reviewed-by: Christian König Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/Kconfig | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/Kconfig b/drivers/gpu/drm/amd/amdgpu/Kconfig index 1acfed2f92efb..883f324288713 100644 --- a/drivers/gpu/drm/amd/amdgpu/Kconfig +++ b/drivers/gpu/drm/amd/amdgpu/Kconfig @@ -59,11 +59,17 @@ config DRM_AMDGPU_CIK Choose this option if you want to enable support for CIK (Sea Islands) asics. - CIK is already supported in radeon. Support for CIK in amdgpu - will be disabled by default and is still provided by radeon. - Use module options to override this: + CIK (Sea Islands) are second generation GCN GPUs, + supported by both drivers: radeon (old) and amdgpu (new). + By default, + CIK dedicated GPUs are supported by amdgpu + CIK APUs are supported by radeon + Use module options to override this: + To use amdgpu for CIK, radeon.cik_support=0 amdgpu.cik_support=1 + To use radeon for CIK, + radeon.cik_support=1 amdgpu.cik_support=0 config DRM_AMDGPU_USERPTR bool "Always enable userptr write support" -- 2.47.3