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| author | Daniel Miess <daniel.miess@amd.com> | 2023-10-12 12:55:47 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-17 09:30:50 -0500 |
| commit | 5f70d4ff8095a2ad362d2a00eb8d9f7e20f3daa1 (patch) | |
| tree | e48451c935e8802f2b0f55ed8858ff17de71a7ab /drivers/gpu/drm/amd/display/dc/hwss | |
| parent | 673d6d73eba79a1205ac403b68ef63da1c823da2 (diff) | |
| download | linux-stable-5f70d4ff8095a2ad362d2a00eb8d9f7e20f3daa1.tar.gz linux-stable-5f70d4ff8095a2ad362d2a00eb8d9f7e20f3daa1.tar.bz2 linux-stable-5f70d4ff8095a2ad362d2a00eb8d9f7e20f3daa1.zip | |
drm/amd/display: Enable DCN clock gating for DCN35
[WHY & HOW]
Enable DCN clock gating for DCN35.
Disable DTBCLK gate before link training
and re-enable afterwards
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/hwss')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dce/dce_hwseq.h | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 42 |
2 files changed, 43 insertions, 14 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce/dce_hwseq.h b/drivers/gpu/drm/amd/display/dc/hwss/dce/dce_hwseq.h index 44b4df6469d1..52f045cfd52a 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dce/dce_hwseq.h +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce/dce_hwseq.h @@ -682,6 +682,7 @@ struct dce_hwseq_registers { uint32_t DCHUBBUB_ARB_HOSTVM_CNTL; uint32_t HPO_TOP_HW_CONTROL; uint32_t DMU_CLK_CNTL; + uint32_t DCCG_GATE_DISABLE_CNTL4; uint32_t DCCG_GATE_DISABLE_CNTL5; }; /* set field name */ @@ -1199,7 +1200,19 @@ struct dce_hwseq_registers { type PHYBSYMCLK_ROOT_GATE_DISABLE;\ type PHYCSYMCLK_ROOT_GATE_DISABLE;\ type PHYDSYMCLK_ROOT_GATE_DISABLE;\ - type PHYESYMCLK_ROOT_GATE_DISABLE; + type PHYESYMCLK_ROOT_GATE_DISABLE;\ + type DTBCLK_P0_GATE_DISABLE;\ + type DTBCLK_P1_GATE_DISABLE;\ + type DTBCLK_P2_GATE_DISABLE;\ + type DTBCLK_P3_GATE_DISABLE;\ + type DPSTREAMCLK0_GATE_DISABLE;\ + type DPSTREAMCLK1_GATE_DISABLE;\ + type DPSTREAMCLK2_GATE_DISABLE;\ + type DPSTREAMCLK3_GATE_DISABLE;\ + type DPIASYMCLK0_GATE_DISABLE;\ + type DPIASYMCLK1_GATE_DISABLE;\ + type DPIASYMCLK2_GATE_DISABLE;\ + type DPIASYMCLK3_GATE_DISABLE; struct dce_hwseq_shift { HWSEQ_REG_FIELD_LIST(uint8_t) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c index 5a8258287438..39260371beb9 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c @@ -145,17 +145,36 @@ void dcn35_init_hw(struct dc *dc) hws->funcs.bios_golden_init(dc); } - REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0); - REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0); - - /* Disable gating for PHYASYMCLK. This will be enabled in dccg if needed */ - REG_UPDATE_5(DCCG_GATE_DISABLE_CNTL2, PHYASYMCLK_ROOT_GATE_DISABLE, 1, - PHYBSYMCLK_ROOT_GATE_DISABLE, 1, - PHYCSYMCLK_ROOT_GATE_DISABLE, 1, - PHYDSYMCLK_ROOT_GATE_DISABLE, 1, - PHYESYMCLK_ROOT_GATE_DISABLE, 1); + if (!dc->debug.disable_clock_gate) { + REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0); + REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0); + + /* Disable gating for PHYASYMCLK. This will be enabled in dccg if needed */ + REG_UPDATE_5(DCCG_GATE_DISABLE_CNTL2, PHYASYMCLK_ROOT_GATE_DISABLE, 1, + PHYBSYMCLK_ROOT_GATE_DISABLE, 1, + PHYCSYMCLK_ROOT_GATE_DISABLE, 1, + PHYDSYMCLK_ROOT_GATE_DISABLE, 1, + PHYESYMCLK_ROOT_GATE_DISABLE, 1); + + REG_UPDATE_4(DCCG_GATE_DISABLE_CNTL4, + DPIASYMCLK0_GATE_DISABLE, 0, + DPIASYMCLK1_GATE_DISABLE, 0, + DPIASYMCLK2_GATE_DISABLE, 0, + DPIASYMCLK3_GATE_DISABLE, 0); + + REG_WRITE(DCCG_GATE_DISABLE_CNTL5, 0xFFFFFFFF); + REG_UPDATE_4(DCCG_GATE_DISABLE_CNTL5, + DTBCLK_P0_GATE_DISABLE, 0, + DTBCLK_P1_GATE_DISABLE, 0, + DTBCLK_P2_GATE_DISABLE, 0, + DTBCLK_P3_GATE_DISABLE, 0); + REG_UPDATE_4(DCCG_GATE_DISABLE_CNTL5, + DPSTREAMCLK0_GATE_DISABLE, 0, + DPSTREAMCLK1_GATE_DISABLE, 0, + DPSTREAMCLK2_GATE_DISABLE, 0, + DPSTREAMCLK3_GATE_DISABLE, 0); - REG_WRITE(DCCG_GATE_DISABLE_CNTL5, 0x1f7c3fcf); + } // Initialize the dccg if (res_pool->dccg->funcs->dccg_init) @@ -332,9 +351,6 @@ void dcn35_init_hw(struct dc *dc) if (dc->res_pool->pg_cntl) { if (dc->res_pool->pg_cntl->funcs->init_pg_status) dc->res_pool->pg_cntl->funcs->init_pg_status(dc->res_pool->pg_cntl); - - if (dc->res_pool->pg_cntl->funcs->set_force_poweron_domain22) - dc->res_pool->pg_cntl->funcs->set_force_poweron_domain22(dc->res_pool->pg_cntl, false); } } |