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| author | Alex Deucher <alexander.deucher@amd.com> | 2020-09-23 09:50:24 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-25 16:55:21 -0400 |
| commit | d5cc02d97ab125b62075ad296e4dca9a7fc54c9b (patch) | |
| tree | f319f79b37829adf0dd587702302bf3ad3ab90bd /drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | |
| parent | 9b498efae29f86d53fbd44845324f0f0faae5ff2 (diff) | |
| download | lwn-d5cc02d97ab125b62075ad296e4dca9a7fc54c9b.tar.gz lwn-d5cc02d97ab125b62075ad296e4dca9a7fc54c9b.zip | |
drm/amdgpu: add an auto setting to the noretry parameter
This allows us to set different defaults on a per asic basis. This
way we can enable noretry on dGPUs where it can increase performance
in certain cases and disable it on chips where it can be problematic.
For now the default is 0 for all asics, but we may want to try and
enable it again for newer dGPUs.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index a4b518211b1f..f3e2fbcfadfb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -147,7 +147,7 @@ int amdgpu_async_gfx_ring = 1; int amdgpu_mcbp = 0; int amdgpu_discovery = -1; int amdgpu_mes = 0; -int amdgpu_noretry; +int amdgpu_noretry = -1; int amdgpu_force_asic_type = -1; int amdgpu_tmz = 0; int amdgpu_reset_method = -1; /* auto */ @@ -596,8 +596,13 @@ MODULE_PARM_DESC(mes, "Enable Micro Engine Scheduler (0 = disabled (default), 1 = enabled)"); module_param_named(mes, amdgpu_mes, int, 0444); +/** + * DOC: noretry (int) + * Disable retry faults in the GPU memory controller. + * (0 = retry enabled, 1 = retry disabled, -1 auto (default)) + */ MODULE_PARM_DESC(noretry, - "Disable retry faults (0 = retry enabled (default), 1 = retry disabled)"); + "Disable retry faults (0 = retry enabled, 1 = retry disabled, -1 auto (default))"); module_param_named(noretry, amdgpu_noretry, int, 0644); /** |