diff options
| author | Martin Leung <Martin.Leung@amd.com> | 2021-12-10 15:04:07 -0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-14 16:08:41 -0500 |
| commit | 4866b0bfea40cddb7275c88aeb95b47dac3d2a35 (patch) | |
| tree | ddb844499963c8b30b11cb3f3d8cfb12cfb9d496 /drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | |
| parent | b477143566d5b16c8b92ffec2cb3a896fe818509 (diff) | |
| download | linux-4866b0bfea40cddb7275c88aeb95b47dac3d2a35.tar.bz2 | |
drm/amd/display: implement dc_mode_memclk
why:
Need interface to lower clocks when in dc (power save)
mode. Must be able to work with p_state unsupported cases
Can cause flicker when OS notifies us of dc state change
how:
added dal3 interface for KMD
added pathway to query smu for this softmax
added blank before clock change to override underflow
added logic to change clk based on pstatesupport and softmax
added logic in prepare/optimize_bw to conform while changing
clocks
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Martin Leung <Martin.Leung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index de4723f33c60..a17fe8ab2904 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -615,6 +615,11 @@ void dcn20_disable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx) pipe_ctx->pipe_idx); } +void dcn20_disable_pixel_data(struct dc *dc, struct pipe_ctx *pipe_ctx, bool blank) +{ + dcn20_blank_pixel_data(dc, pipe_ctx, blank); +} + static int calc_mpc_flow_ctrl_cnt(const struct dc_stream_state *stream, int opp_cnt) { @@ -1840,6 +1845,11 @@ void dcn20_optimize_bandwidth( dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000, true); + if (dc->clk_mgr->dc_mode_softmax_enabled) + if (dc->clk_mgr->clks.dramclk_khz > dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000 && + context->bw_ctx.bw.dcn.clk.dramclk_khz <= dc->clk_mgr->bw_params->dc_mode_softmax_memclk * 1000) + dc->clk_mgr->funcs->set_max_memclk(dc->clk_mgr, dc->clk_mgr->bw_params->dc_mode_softmax_memclk); + dc->clk_mgr->funcs->update_clocks( dc->clk_mgr, context, |