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drm/amdkfd: Query vmid pasid mapping through stored info for non HWS

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Because we record the mapping under non HWS mode in the software,
we can query pasid through vmid using the stored mapping instead of
reading from ATC registers.

This also prepares for the defeatured ATC block in future ASICs.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yong Zhao 2019-09-25 17:06:12 -04:00 committed by Alex Deucher
parent d9d4623c87
commit 3fe023d42e
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
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@ -54,8 +54,7 @@ static bool event_interrupt_isr_v9(struct kfd_dev *dev,
memcpy(patched_ihre, ih_ring_entry,
dev->device_info->ih_ring_entry_size);
pasid = dev->kfd2kgd->get_atc_vmid_pasid_mapping_pasid(
dev->kgd, vmid);
pasid = dev->dqm->vmid_pasid[vmid];
/* Patch the pasid field */
patched_ihre[3] = cpu_to_le32((le32_to_cpu(patched_ihre[3])