diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 621699331e09..c8f1aebeac7a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -392,7 +392,16 @@ static int gmc_v9_0_early_init(void *handle) static int gmc_v9_0_late_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 3, 3 }; + /* + * The latest engine allocation on gfx9 is: + * Engine 0, 1: idle + * Engine 2, 3: firmware + * Engine 4~13: amdgpu ring, subject to change when ring number changes + * Engine 14~15: idle + * Engine 16: kfd tlb invalidation + * Engine 17: Gart flushes + */ + unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 }; unsigned i; for(i = 0; i < adev->num_rings; ++i) { @@ -405,9 +414,9 @@ static int gmc_v9_0_late_init(void *handle) ring->funcs->vmhub); } - /* Engine 17 is used for GART flushes */ + /* Engine 16 is used for KFD and 17 for GART flushes */ for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i) - BUG_ON(vm_inv_eng[i] > 17); + BUG_ON(vm_inv_eng[i] > 16); return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0); } |