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| author | Alvin Lee <alvin.lee2@amd.com> | 2023-11-10 02:08:17 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-30 00:49:00 +0300 |
| commit | f4233efedf75572e49efd08202b1a07196949b4a (patch) | |
| tree | 4d532b272ed37f1a60f03edf6177fed7eb144dda /drivers/gpu/drm/amd/display/dc | |
| parent | 0e6a12884ca72520b195d95f1fa1bf790678cd6c (diff) | |
| download | linux-f4233efedf75572e49efd08202b1a07196949b4a.tar.xz | |
drm/amd/display: If P-State is supported try SubVP for smaller vlevel
[Description]
- To reduce vlevel further, we can try to apply subvp on
configs that already support p-state since the natural
p-state support may not allow for DPM0.
- Add code to try subvp to reduce UCLK DPM level further
if already supported, but don't use subvp if it does not
optimize the DPM level even lower
Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c index c4ffb4b92b56..26411d4e9730 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c @@ -1416,6 +1416,7 @@ static void dcn32_full_validate_bw_helper(struct dc *dc, unsigned int dc_pipe_idx = 0; int i = 0; bool found_supported_config = false; + int vlevel_temp = 0; dc_assert_fp_enabled(); @@ -1448,13 +1449,15 @@ static void dcn32_full_validate_bw_helper(struct dc *dc, */ if (!dc->debug.force_disable_subvp && !dc->caps.dmub_caps.gecc_enable && dcn32_all_pipes_have_stream_and_plane(dc, context) && !dcn32_mpo_in_use(context) && !dcn32_any_surfaces_rotated(dc, context) && !is_test_pattern_enabled(context) && - (*vlevel == context->bw_ctx.dml.soc.num_states || + (*vlevel == context->bw_ctx.dml.soc.num_states || (vba->DRAMSpeedPerState[*vlevel] != vba->DRAMSpeedPerState[0] && + vba->DRAMClockChangeSupport[*vlevel][vba->maxMpcComb] != dm_dram_clock_change_unsupported) || vba->DRAMClockChangeSupport[*vlevel][vba->maxMpcComb] == dm_dram_clock_change_unsupported || dc->debug.force_subvp_mclk_switch)) { dcn32_merge_pipes_for_subvp(dc, context); memset(merge, 0, MAX_PIPES * sizeof(bool)); + vlevel_temp = *vlevel; /* to re-initialize viewport after the pipe merge */ for (i = 0; i < dc->res_pool->pipe_count; i++) { struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; @@ -1523,6 +1526,9 @@ static void dcn32_full_validate_bw_helper(struct dc *dc, } } + if (vba->DRAMSpeedPerState[*vlevel] >= vba->DRAMSpeedPerState[vlevel_temp]) + found_supported_config = false; + // If SubVP pipe config is unsupported (or cannot be used for UCLK switching) // remove phantom pipes and repopulate dml pipes if (!found_supported_config) { |