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drm/amdgpu: reserve mmhub engine 3 for UMSCH FW

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UMSCH FW uses mmhub engine 3 for invalidation.

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Acked-by: Veerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lang Yu
2023-06-14 11:50:27 +08:00
committed by Alex Deucher
parent d591ae0c9f
commit 40748f9a0a
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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@@ -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]);