From be566196be3c424dbf9eb893888a8e91c12a627b Mon Sep 17 00:00:00 2001 From: Oak Zeng Date: Sat, 21 Nov 2020 21:13:19 -0600 Subject: [PATCH] drm/amdgpu: Don't do FB resize under A+A config 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 Reviewed-by: Amber Lin Reviewed-by: Felix Kuehling Reviewed-by: Christian Koenig Tested-by: Amber Lin Signed-off-by: Alex Deucher --- 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 6009aee..53c09aa 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; -- 2.7.4