diff options
| author | Joshua Aberback <joshua.aberback@amd.com> | 2019-11-19 18:46:26 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-12-18 16:09:07 -0500 |
| commit | 6026be696193db16006058d8d67fedb7c7e6832d (patch) | |
| tree | ea093f9b7f108b2efb260ecc10bd3378bb2a8cea /drivers/gpu/drm/amd/display/dc/dsc | |
| parent | 663bfef0da610da5920df3b030d2aae8e4513baa (diff) | |
drm/amd/display: Add interface to adjust DSC max target bpp limit
[Why]
For some use cases we need to be able to adjust the maximum target bpp
allowed by DSC policy.
[How]
New interface dc_dsc_policy_set_max_target_bpp_limit
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index d2423ad1fac2..71b048363506 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -29,6 +29,9 @@ /* This module's internal functions */ +/* default DSC policy target bitrate limit is 16bpp */ +static uint32_t dsc_policy_max_target_bpp_limit = 16; + static uint32_t dc_dsc_bandwidth_in_kbps_from_timing( const struct dc_crtc_timing *timing) { @@ -951,7 +954,12 @@ void dc_dsc_get_policy_for_timing(const struct dc_crtc_timing *timing, struct dc default: return; } - /* internal upper limit to 16 bpp */ - if (policy->max_target_bpp > 16) - policy->max_target_bpp = 16; + /* internal upper limit, default 16 bpp */ + if (policy->max_target_bpp > dsc_policy_max_target_bpp_limit) + policy->max_target_bpp = dsc_policy_max_target_bpp_limit; +} + +void dc_dsc_policy_set_max_target_bpp_limit(uint32_t limit) +{ + dsc_policy_max_target_bpp_limit = limit; } |