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From 2a67b09866d6a985734211ba94ecfd9d170e7b9d Mon Sep 17 00:00:00 2001
From: Jay Cornwall <Jay.Cornwall@amd.com>
Date: Tue, 22 Aug 2017 15:15:27 -0500
Subject: [PATCH 1771/4131] drm/amdgpu: Invalidate caches with KFD TLB
invalidation
Physically tagged caches must be written back and invalidated before
TLB invalidation is acknowledged to the driver. Modify the
KFD's INVALIDATE_TLBS submission to request the hardware to do this.
Change-Id: I6f54d038ef49900462bd9ed54ef70e74560dec5f
Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
index 8af8d6c..25c3454 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
@@ -978,7 +978,8 @@ static int invalidate_tlbs_with_kiq(struct amdgpu_device *adev, uint16_t pasid)
amdgpu_ring_write(ring,
PACKET3_INVALIDATE_TLBS_DST_SEL(1) |
PACKET3_INVALIDATE_TLBS_ALL_HUB(1) |
- PACKET3_INVALIDATE_TLBS_PASID(pasid));
+ PACKET3_INVALIDATE_TLBS_PASID(pasid) |
+ PACKET3_INVALIDATE_TLBS_FLUSH_TYPE(2));
amdgpu_fence_emit(ring, &f);
amdgpu_ring_commit(ring);
mutex_unlock(&adev->gfx.kiq.ring_mutex);
--
2.7.4
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