diff options
| author | Jack Xiao <Jack.Xiao@amd.com> | 2022-11-16 16:44:21 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-02 17:43:18 +0100 |
| commit | 057d2b988bfe1cb1efcd66038276cfde355ffea0 (patch) | |
| tree | 88fe43224538458ec38c6989d288a6356e1c655f /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | |
| parent | 5fa2b0e80ba3634e54fe660d554ed3d472d883b0 (diff) | |
drm/amd/amdgpu: reserve vm invalidation engine for firmware
commit 91abf28a636291135ea5cab9af40f017cff6afce upstream.
If mes enabled, reserve VM invalidation engine 5 for firmware.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index aebc384531ac..bff5d8c832ad 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; |