github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amdgpu/gmc12: Update gmc aperture base for A + A

Browse Source 
Query mmhub MC_VM_FB_OFFSET, XGMI_LFB_CNTL|SIZE
registers to calculate gmc apeture base address
for A + A configuration

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2026-01-17 19:47:09 +08:00 committed by Alex Deucher
parent c5f8454cd1
commit 5aff5c6831
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
View File

@ -736,8 +736,12 @@ static int gmc_v12_0_mc_init(struct amdgpu_device *adev)
adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
#ifdef CONFIG_X86_64
if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) {
adev->gmc.aper_base = adev->mmhub.funcs->get_mc_fb_offset(adev);
if (((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) ||
(adev->gmc.xgmi.connected_to_cpu)) {
adev->gmc.aper_base =
adev->mmhub.funcs->get_mc_fb_offset(adev) +
adev->gmc.xgmi.physical_node_id *
adev->gmc.xgmi.node_segment_size;
adev->gmc.aper_size = adev->gmc.real_vram_size;
}
#endif