diff options
| author | Lewis Huang <Lewis.Huang@amd.com> | 2019-07-06 16:02:25 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-17 16:28:10 -0400 |
| commit | f93e29f083ff263b1507675d2aaa98917e9351c8 (patch) | |
| tree | c197ed4105a1edbd76c8be29b7edbd04c4f9a612 | |
| parent | d4516d3ec5ea1cc23175b5eea08861276278a99b (diff) | |
drm/amd/display: Temporary workaround to toggle watermark setting
[Why]
Watermarks not propagated to DCHUBP after it is powered on
[How]
Add temoprary function apply_DEDCN21_147_wa to apply wm settings for Renoir
Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 files changed, 15 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 ce2530509e12..6229a8ca0013 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -1533,6 +1533,10 @@ static void dcn20_program_front_end_for_ctx( msleep(1); } } + + /* WA to apply WM setting*/ + if (dc->hwseq->wa.DEGVIDCN21) + dc->res_pool->hubbub->funcs->apply_DEDCN21_147_wa(dc->res_pool->hubbub); } diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c index fdfbdeb32459..2232ccf14bdd 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c @@ -616,6 +616,14 @@ void hubbub21_wm_read_state(struct hubbub *hubbub, DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, &s->dram_clk_chanage); } +void hubbub21_apply_DEDCN21_147_wa(struct hubbub *hubbub) +{ + struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); + uint32_t prog_wm_value; + + prog_wm_value = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A); + REG_WRITE(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, prog_wm_value); +} static const struct hubbub_funcs hubbub21_funcs = { .update_dchub = hubbub2_update_dchub, @@ -627,6 +635,7 @@ static const struct hubbub_funcs hubbub21_funcs = { .wm_read_state = hubbub21_wm_read_state, .get_dchub_ref_freq = hubbub2_get_dchub_ref_freq, .program_watermarks = hubbub21_program_watermarks, + .apply_DEDCN21_147_wa = hubbub21_apply_DEDCN21_147_wa, }; void hubbub21_construct(struct dcn20_hubbub *hubbub, diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index e58d87b66f35..e5848cac33e2 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -1470,6 +1470,7 @@ static struct dce_hwseq *dcn21_hwseq_create( hws->regs = &hwseq_reg; hws->shifts = &hwseq_shift; hws->masks = &hwseq_mask; + hws->wa.DEGVIDCN21 = true; } return hws; } diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h index a6297219d7fc..c81a17aeaa25 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h @@ -147,6 +147,7 @@ struct hubbub_funcs { bool (*is_allow_self_refresh_enabled)(struct hubbub *hubbub); void (*allow_self_refresh_control)(struct hubbub *hubbub, bool allow); + void (*apply_DEDCN21_147_wa)(struct hubbub *hubbub); }; struct hubbub { |