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| author |   Huacai Chen <chenhuacai@loongson.cn> | 2024-01-24 18:16:07 +0800 |
|---|---|---|
| committer |   Sui Jingfeng <sui.jingfeng@linux.dev> | 2024-01-28 19:06:46 +0800 |
| commit | cc575083cdcf8127f5e260915f5af443602a7763 (patch) | |
| tree | 68e73ddfec7f4b893aba19ff5cc0748447119d0b /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | drm/ttm: Make sure the mapped tt pages are decrypted when needed (diff) | |
| download | linux-rng-cc575083cdcf8127f5e260915f5af443602a7763.tar.xz linux-rng-cc575083cdcf8127f5e260915f5af443602a7763.zip | |
drm/loongson: Error out if no VRAM detected
When a Loongson laptop is equipped with a Radeon GPU, it can be true that
there is no dedicated VRAM soldered on the motherboard. This is probably
for cost reason, but drm/loongson driver is probed because the platform
BIOS (either UEFI or PMON) forget to disable the integrated GPU.
So in the lsdc_get_dedicated_vram() function, we error out if no dedicated
VRAM detected. This fix nothing, but serve as a sanity check only.
Tested-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Link: https://patchwork.freedesktop.org/patch/msgid/20240124101607.2910998-1-chenhuacai@loongson.cn
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
0 files changed, 0 insertions, 0 deletions