From 3fe023d42ea82be7d32ad26ab9409d970c1d361f Mon Sep 17 00:00:00 2001
From: Yong Zhao <Yong.Zhao@amd.com>
Date: Wed, 25 Sep 2019 17:06:12 -0400
Subject: drm/amdkfd: Query vmid pasid mapping through stored info for non HWS
Git-commit: 3fe023d42ea82be7d32ad26ab9409d970c1d361f
Patch-mainline: v5.5-rc1
References: bsc#1152489
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>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
index 3ef67d2e0d9f..e05d75ecda21 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
@@ -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])
--
2.28.0