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drm/amdgpu: disable BAR resize on Dell G5 SE

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There was a quirk added to add a workaround for a Sapphire
RX 5600 XT Pulse that didn't allow BAR resizing.  However,
the quirk caused a regression with runtime pm on Dell laptops
using those chips, rather than narrowing the scope of the
resizing quirk, add a quirk to prevent amdgpu from resizing
the BAR on those Dell platforms unless runtime pm is disabled.

v2: update commit message, add runpm check

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/1707
Fixes: 907830b0fc ("PCI: Add a REBAR size quirk for Sapphire RX 5600 XT Pulse")
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5235053f443cef4210606e5fb71f99b915a9723d)
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2025-02-17 10:55:05 -05:00
parent 3502ab5022
commit 099bffc7ca
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -1638,6 +1638,13 @@ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev)
if (amdgpu_sriov_vf(adev))
return 0;
/* resizing on Dell G5 SE platforms causes problems with runtime pm */
if ((amdgpu_runtime_pm != 0) &&
adev->pdev->vendor == PCI_VENDOR_ID_ATI &&
adev->pdev->device == 0x731f &&
adev->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
return 0;
/* PCI_EXT_CAP_ID_VNDR extended capability is located at 0x100 */
if (!pci_find_ext_capability(adev->pdev, PCI_EXT_CAP_ID_VNDR))
DRM_WARN("System can't access extended configuration space, please check!!\n");