From: Lang Yu <Lang.Yu@xxxxxxx>
UMSCH FW uses mmhub engine 3 for invalidation.
Signed-off-by: Lang Yu <Lang.Yu@xxxxxxx>
Acked-by: Leo Liu <leo.liu@xxxxxxx>
Acked-by: Veerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index d78bd9732543..5f7641d9f346 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -549,13 +549,17 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev)
/* reserve engine 5 for firmware */
if (adev->enable_mes)
vm_inv_engs[i] &= ~(1 << 5);
+ /* reserve mmhub engine 3 for firmware */
+ if (adev->enable_umsch_mm)
+ vm_inv_engs[i] &= ~(1 << 3);
}
for (i = 0; i < adev->num_rings; ++i) {
ring = adev->rings[i];
vmhub = ring->vm_hub;
- if (ring == &adev->mes.ring)
+ if (ring == &adev->mes.ring ||
+ ring == &adev->umsch_mm.ring)
continue;
inv_eng = ffs(vm_inv_engs[vmhub]);
--
2.41.0
