From: Oak Zeng <Oak.Zeng@xxxxxxx>
Disable PCIe BAR resizing on A+A config. It's not needed because we won't use the
PCIe BAR, but it breaks the PCI BAR configuration with the current SBIOS.
Error message of FB BAR resize failure under A+A:
[ 154.913731] [drm:amdgpu_device_resize_fb_bar [amdgpu]] *ERROR* Problem resizing BAR0 (-22).
Signed-off-by: Oak Zeng <Oak.Zeng@xxxxxxx>
Reviewed-by: Amber Lin <Amber.Lin@xxxxxxx>
Reviewed-by: Felix Kuehling <Felix.kuehling@xxxxxxx>
Reviewed-by: Christian Koenig <Christian.Koenig@xxxxxxx>
Tested-by: Amber Lin <Amber.Lin@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 6009aee49fa6..53c09aa4e159 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1249,7 +1249,8 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
adev->nbio.funcs->get_memsize(adev) * 1024ULL * 1024ULL;
adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
- if (!(adev->flags & AMD_IS_APU)) {
+ if (!(adev->flags & AMD_IS_APU) &&
+ !adev->gmc.xgmi.connected_to_cpu) {
r = amdgpu_device_resize_fb_bar(adev);
if (r)
return r;
--
2.29.2
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