From: Alex Deucher Date: Fri, 14 Jun 2024 17:48:26 +0000 (-0400) Subject: drm/amdgpu/atomfirmware: fix parsing of vram_info X-Git-Tag: v6.11-rc1~141^2~8^2~86 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=83edf00d8972eecd849865a34bd4fada09444ec4;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu/atomfirmware: fix parsing of vram_info v3.x changed the how vram width was encoded. The previous implementation actually worked correctly for most boards. Fix the implementation to work correctly everywhere. This fixes the vram width reported in the kernel log on some boards. Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c index f932bec6e5345..f873dd3cae160 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c @@ -433,7 +433,7 @@ amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev, mem_channel_number = vram_info->v30.channel_num; mem_channel_width = vram_info->v30.channel_width; if (vram_width) - *vram_width = mem_channel_number * (1 << mem_channel_width); + *vram_width = mem_channel_number * 16; break; default: return -EINVAL;