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drm/amd: Disable ASPM on SI

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[ Upstream commit 7bdd91abf0 ]

Enabling ASPM causes randoms hangs on Tahiti and Oland on Zen4.
It's unclear if this is a platform-specific or GPU-specific issue.
Disable ASPM on SI for the time being.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Timur Kristóf
2025-09-26 20:26:13 +02:00
committed by Greg Kroah-Hartman
parent e95425b6df
commit ccd8af5791
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -1880,6 +1880,13 @@ static bool amdgpu_device_pcie_dynamic_switching_supported(struct amdgpu_device
static bool amdgpu_device_aspm_support_quirk(struct amdgpu_device *adev) static bool amdgpu_device_aspm_support_quirk(struct amdgpu_device *adev)
{ {
/* Enabling ASPM causes randoms hangs on Tahiti and Oland on Zen4.
* It's unclear if this is a platform-specific or GPU-specific issue.
* Disable ASPM on SI for the time being.
*/
if (adev->family == AMDGPU_FAMILY_SI)
return true;
#if IS_ENABLED(CONFIG_X86) #if IS_ENABLED(CONFIG_X86)
struct cpuinfo_x86 *c = &cpu_data(0); struct cpuinfo_x86 *c = &cpu_data(0);