Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
drm/amdgpu/gmc9: remove dummy read workaround for newer chips
Aldebaran has a hw fix so no longer requires the workaround.
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+4
-2
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+4
-2
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
···
574
* be updated to avoid reading an incorrect value due to
575
* the new fast GRBM interface.
576
*/
577
-
if (entry->vmid_src == AMDGPU_GFXHUB_0)
578
RREG32(hub->vm_l2_pro_fault_status);
579
580
status = RREG32(hub->vm_l2_pro_fault_status);
···
803
* be cleared to avoid a false ACK due to the new fast
804
* GRBM interface.
805
*/
806
-
if (vmhub == AMDGPU_GFXHUB_0)
807
RREG32_NO_KIQ(hub->vm_inv_eng0_req +
808
hub->eng_distance * eng);
809
···
574
* be updated to avoid reading an incorrect value due to
575
* the new fast GRBM interface.
576
*/
577
+
if ((entry->vmid_src == AMDGPU_GFXHUB_0) &&
578
+
(adev->asic_type < CHIP_ALDEBARAN))
579
RREG32(hub->vm_l2_pro_fault_status);
580
581
status = RREG32(hub->vm_l2_pro_fault_status);
···
802
* be cleared to avoid a false ACK due to the new fast
803
* GRBM interface.
804
*/
805
+
if ((vmhub == AMDGPU_GFXHUB_0) &&
806
+
(adev->asic_type < CHIP_ALDEBARAN))
807
RREG32_NO_KIQ(hub->vm_inv_eng0_req +
808
hub->eng_distance * eng);
809