Commit 3fe023d4 authored Sep 25, 2019 by Yong Zhao Committed by Alex Deucher Oct 03, 2019

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



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>

parent d9d4623c

drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -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])

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