diff options
| author | Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> | 2017-06-09 11:26:57 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-06-09 11:29:38 -0400 |
| commit | 9a4b7d4c769e7513dec8f441de1f521ec4ead4b6 (patch) | |
| tree | 2484bc22632c27cba01ef82389ce8c82840d7181 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | b58c11314a1706bf094c489ef5cb28f76478c704 (diff) | |
| download | lwn-9a4b7d4c769e7513dec8f441de1f521ec4ead4b6.tar.gz lwn-9a4b7d4c769e7513dec8f441de1f521ec4ead4b6.zip | |
drm/amdgpu: Add vm context module param
Add VM update mode module param (amdgpu.vm_update_mode) that can used to
control how VM pde/pte are updated for Graphics and Compute.
BIT0 controls Graphics and BIT1 Compute.
BIT0 [= 0] Graphics updated by SDMA [= 1] by CPU
BIT1 [= 0] Compute updated by SDMA [= 1] by CPU
By default, only for large BAR system vm_update_mode = 2, indicating
that Graphics VMs will be updated via SDMA and Compute VMs will be
updated via CPU. And for all all other systems (by default)
vm_update_mode = 0
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 3a0561cc7ed1..1ae9ca239188 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -95,6 +95,7 @@ extern int amdgpu_vm_size; extern int amdgpu_vm_block_size; extern int amdgpu_vm_fault_stop; extern int amdgpu_vm_debug; +extern int amdgpu_vm_update_mode; extern int amdgpu_sched_jobs; extern int amdgpu_sched_hw_submission; extern int amdgpu_no_evict; |