iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amd/display: add vline time in micro sec to PSR context

Browse Source 
[why]
The current PSR SU programming margin is fixed base on FHD 60HZ
panel. If the resolution and refresh rate become higher, the time
of current margin might not cover the programming SU time.

[how]
Notice that the programming SU time is the same among different
panels.

Instead of fixing the margin with target line number, change the
margin unit to micro second which indicate the time needed for
programming SU. Then FW set the margin line number base on the
line time and margin time.

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Zhang 2022-05-02 11:59:58 -04:00 committed by Alex Deucher
parent 65657d9875
commit 32c453f18d
3 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/display/dc/core/dc_link.c
View File

@ -3274,6 +3274,8 @@ bool dc_link_setup_psr(struct dc_link *link,
psr_config->su_granularity_required;
psr_context->su_y_granularity =
psr_config->su_y_granularity;
psr_context->line_time_in_us =
psr_config->line_time_in_us;
}
psr_context->channel = link->ddc->ddc_pin->hw_info.ddc_channel;

2
drivers/gpu/drm/amd/display/dc/dc_types.h
View File

@ -676,6 +676,7 @@ struct psr_config {
bool su_granularity_required;
/* psr2 selective update y granularity capability */
uint8_t su_y_granularity;
unsigned int line_time_in_us;
};
union dmcu_psr_level {
@ -783,6 +784,7 @@ struct psr_context {
bool su_granularity_required;
/* psr2 selective update y granularity capability */
uint8_t su_y_granularity;
unsigned int line_time_in_us;
};
struct colorspace_transform {

1
drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
View File

@ -340,6 +340,7 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub,
copy_settings_data->su_y_granularity = psr_context->su_y_granularity;
copy_settings_data->line_capture_indication = 0;
copy_settings_data->line_time_in_us = psr_context->line_time_in_us;
copy_settings_data->fec_enable_status = (link->fec_state == dc_link_fec_enabled);
copy_settings_data->fec_enable_delay_in100us = link->dc->debug.fec_enable_delay_in100us;
copy_settings_data->cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1;