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drm/amd/display: make PSR static screen entry within 30 ms

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[Why]
With different refresh rate panels, the PSR entry/exit time is
different since it is dependent on 2 frame entry time today

[How]
Make static screen num frame entry time to be calculated
such that entry time is within 30 ms instead of fixed num
frames.

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Anthony Koo
2019-12-09 17:26:34 -05:00
committed by Alex Deucher
parent 9a25e13b91
commit 5b5abe9526
18 changed files with 116 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@@ -8393,17 +8393,37 @@ static bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream)
bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
{
struct dc_link *link = stream->link;
struct dc_static_screen_events triggers = {0};
unsigned int vsync_rate_hz = 0;
struct dc_static_screen_params params = {0};
/* Calculate number of static frames before generating interrupt to
* enter PSR.
*/
unsigned int frame_time_microsec = 1000000 / vsync_rate_hz;
// Init fail safe of 2 frames static
unsigned int num_frames_static = 2;
DRM_DEBUG_DRIVER("Enabling psr...\n");
triggers.cursor_update = true;
triggers.overlay_update = true;
triggers.surface_update = true;
vsync_rate_hz = div64_u64(div64_u64((
stream->timing.pix_clk_100hz * 100),
stream->timing.v_total),
stream->timing.h_total);
dc_stream_set_static_screen_events(link->ctx->dc,
/* Round up
* Calculate number of frames such that at least 30 ms of time has
* passed.
*/
if (vsync_rate_hz != 0)
num_frames_static = (30000 / frame_time_microsec) + 1;
params.triggers.cursor_update = true;
params.triggers.overlay_update = true;
params.triggers.surface_update = true;
params.num_frames = num_frames_static;
dc_stream_set_static_screen_params(link->ctx->dc,
&stream, 1,
&triggers);
&params);
return dc_link_set_psr_allow_active(link, true, false);
}