Wait a second.
This is unnecessary because we have this check in
amdgpu_gmc_vram_location():
if (mc->real_vram_size < mc->visible_vram_size)
mc->visible_vram_size = mc->real_vram_size;
Which makes sure that the visible VRAM size is never larger than the
actual size for all HW generations.
Regards,
Christian.
Am 15.08.23 um 17:50 schrieb Alex Deucher:
Applied. Thanks!
On Tue, Aug 15, 2023 at 3:13 AM hongao <hongao@xxxxxxxxxxxxx> wrote:
[why]
limit visible_vram_size to real_vram_size in case
the PCI BAR is larger than the actual amount of vram.
Signed-off-by: hongao <hongao@xxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index b7dad4e67813..c0de7496bfd1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -320,6 +320,8 @@ static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
adev->gmc.visible_vram_size = adev->gmc.aper_size;
+ if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
+ adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
/* set the gart size */
if (amdgpu_gart_size == -1) {
--
2.20.1
