diff options
| author | Yongqiang Sun <yongqiang.sun@amd.com> | 2018-03-01 01:14:50 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-14 23:16:34 +0300 |
| commit | 45bb8dd696eaff9c96afd2b210f0d8cf5025dd65 (patch) | |
| tree | da8602a53412e46bf5f0555f038503dac4269b47 /drivers/gpu/drm/amd/display/dc/calcs | |
| parent | 5231f5d1124eef853573cb3d2e3dc3c4ddc43e22 (diff) | |
| download | linux-45bb8dd696eaff9c96afd2b210f0d8cf5025dd65.tar.xz | |
drm/amd/display: Set disp clk in a safe way to avoid over high dpp clk. (v2)
Increase clock, if current dpp div is 0 and request dpp div is 1, request clk is
higher than maximum dpp clk as per dpm table.
set dispclk to the value of maximum supported dpp clk
set div to 1
set dispclk to request value.
Decrease clock, currrent dpp div is 1 and request dpp div is 0, current clk is
higher than maximum dpp clk as per dpm table.
set dispclk to the value of maximum supported dpp clk
set div to 0
set dispclk to request value.
v2: squash in !DCN build fix
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/calcs')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c index 8020bc7742c1..8bab3fec4d8d 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c @@ -1000,6 +1000,25 @@ bool dcn_validate_bandwidth( context->bw.dcn.calc_clk.max_dppclk_khz = context->bw.dcn.calc_clk.dispclk_khz / v->dispclk_dppclk_ratio; + switch (v->voltage_level) { + case 0: + context->bw.dcn.calc_clk.max_supported_dppclk_khz = + (int)(dc->dcn_soc->max_dppclk_vmin0p65 * 1000); + break; + case 1: + context->bw.dcn.calc_clk.max_supported_dppclk_khz = + (int)(dc->dcn_soc->max_dppclk_vmid0p72 * 1000); + break; + case 2: + context->bw.dcn.calc_clk.max_supported_dppclk_khz = + (int)(dc->dcn_soc->max_dppclk_vnom0p8 * 1000); + break; + default: + context->bw.dcn.calc_clk.max_supported_dppclk_khz = + (int)(dc->dcn_soc->max_dppclk_vmax0p9 * 1000); + break; + } + for (i = 0, input_idx = 0; i < pool->pipe_count; i++) { struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |