diff options
| author | Sung Lee <sung.lee@amd.com> | 2020-10-31 02:31:51 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-11-16 20:18:44 +0300 |
| commit | 82df77ae4639af747adb223fb4678e3493e4a8b8 (patch) | |
| tree | 42143e6974a6bd5e15352b360a93aa4a5808de52 /drivers/gpu/drm/amd/display/dc | |
| parent | b8e0b3d611e3388361d86a19f27bf2a6d7366111 (diff) | |
| download | linux-82df77ae4639af747adb223fb4678e3493e4a8b8.tar.xz | |
drm/amd/display: Populate hostvm parameter before DML calculation
[Why]
If the system does not have hostvm enabled, disabling it for
DML validation will allow more modes to pass at lower voltage
levels.
[How]
When initializing HostVM save state to hubbub and read back
when populating DML pipes from context.
Signed-off-by: Sung Lee <sung.lee@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h | 1 |
3 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c index 129f0b62f751..42fbb5e6d505 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c @@ -99,6 +99,8 @@ void dcn21_dchvm_init(struct hubbub *hubbub) //Poll until HOSTVM_PREFETCH_DONE = 1 REG_WAIT(DCHVM_RIOMMU_STAT0, HOSTVM_PREFETCH_DONE, 1, 5, 100); + + hubbub->riommu_active = true; } } diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index ed3f62535301..1c88d2edd381 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -1886,7 +1886,7 @@ static int dcn21_populate_dml_pipes_from_context( for (i = 0; i < pipe_cnt; i++) { - pipes[i].pipe.src.hostvm = 1; + pipes[i].pipe.src.hostvm = dc->res_pool->hubbub->riommu_active; pipes[i].pipe.src.gpuvm = 1; } diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h index 5425e92efcb8..d9fd28b34f2a 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h @@ -157,6 +157,7 @@ struct hubbub_funcs { struct hubbub { const struct hubbub_funcs *funcs; struct dc_context *ctx; + bool riommu_active; }; #endif |