diff options
author | Aric Cyr <aric.cyr@amd.com> | 2021-06-21 19:01:45 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-08 22:16:44 +0300 |
commit | babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6 (patch) | |
tree | 4cd9978ba35f8ecf5c430b40084160a4831ed3f8 /drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h | |
parent | cc590fd27190fec00bf9ccc4e349146394e7fa87 (diff) | |
download | linux-babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6.tar.xz |
drm/amd/display: Round KHz up when calculating clock requests
[Why]
When requesting clocks from SMU which takes MHz inputs, DC will round
down KHz when converting to MHz, thus potentially requesting too low a
clock value.
[How]
Round up (ceil) when converting KHz to MHz for clock requests to SMU.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h index 316301fc1e30..a262f3278c21 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h @@ -318,6 +318,11 @@ static inline bool should_update_pstate_support(bool safe_to_lower, bool calc_su return false; } +static inline int khz_to_mhz_ceil(int khz) +{ + return (khz + 999) / 1000; +} + int clk_mgr_helper_get_active_display_cnt( struct dc *dc, struct dc_state *context); |