If mes enabled, reserve VM invalidation engine 5 for firmware.
Signed-off-by: Jack Xiao <jack.x...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index 4365ede42855..e970e3760cec 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -479,6 +479,12 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device
*adev)
unsigned i;
unsigned vmhub, inv_eng;
+ if (adev->enable_mes) {
+ /* reserve engine 5 for firmware */
+ for (vmhub = 0; vmhub < AMDGPU_MAX_VMHUBS; vmhub++)
+ vm_inv_engs[vmhub] &= ~(1 << 5);
+ }
+
for (i = 0; i < adev->num_rings; ++i) {
ring = adev->rings[i];
vmhub = ring->funcs->vmhub;
--
2.37.3
