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drm/amd: Require CONFIG_HOTPLUG_PCI_PCIE for BOCO

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If the kernel hasn't been compiled with PCIe hotplug support this
can lead to problems with dGPUs that use BOCO because they effectively
drop off the bus.

To prevent issues, disable BOCO support when compiled without PCIe hotplug.

Reported-by: Gabriel Marcano <gabemarcano@yahoo.com>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/1707#note_2696862
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20241211155601.3585256-1-superm1@kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Limonciello 2024-12-11 09:56:01 -06:00 • committed by Alex Deucher
parent 3676f37a88
commit 1ad5bdc28b
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -419,6 +419,9 @@ bool amdgpu_device_supports_boco(struct drm_device *dev)
{
struct amdgpu_device *adev = drm_to_adev(dev);
if (!IS_ENABLED(CONFIG_HOTPLUG_PCI_PCIE))
return false;
if (adev->has_pr3 ||
((adev->flags & AMD_IS_PX) && amdgpu_is_atpx_hybrid()))
return true;