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drm/amd/display: Add BLNDGAM memory shutdown support
[Why] The BLNDGAM memory blocks should be powered down when they're not in use. This will reduce power consumption. [How] 1. Write to BLNDGAM_MEM_PWR_FORCE to put memory to shutdown when BLNDGAM is not used. 2. Added a debug option to allow this behaviour to be turned off Signed-off-by: Jacky Liao <ziyu.liao@amd.com> Reviewed-by: Eric Yang <eric.yang2@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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63c954a1ff
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2 changed files with 13 additions and 4 deletions
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@ -500,9 +500,14 @@ static void dpp3_power_on_blnd_lut(
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{
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struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
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REG_SET(CM_MEM_PWR_CTRL, 0,
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BLNDGAM_MEM_PWR_FORCE, power_on == true ? 0:1);
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if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.cm) {
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REG_UPDATE(CM_MEM_PWR_CTRL, BLNDGAM_MEM_PWR_FORCE, power_on ? 0 : 3);
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if (power_on)
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REG_WAIT(CM_MEM_PWR_STATUS, BLNDGAM_MEM_PWR_STATE, 0, 1, 5);
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} else {
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REG_SET(CM_MEM_PWR_CTRL, 0,
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BLNDGAM_MEM_PWR_FORCE, power_on == true ? 0 : 1);
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}
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}
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static void dpp3_configure_blnd_lut(
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@ -675,6 +680,8 @@ bool dpp3_program_blnd_lut(
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if (params == NULL) {
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REG_SET(CM_BLNDGAM_CONTROL, 0, CM_BLNDGAM_MODE, 0);
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if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.cm)
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dpp3_power_on_blnd_lut(dpp_base, false);
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return false;
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}
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@ -343,6 +343,7 @@
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TF_SF(DSCL0_DSCL_MEM_PWR_CTRL, LUT_MEM_PWR_FORCE, mask_sh)
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#define DPP_REG_LIST_SH_MASK_DCN30_UPDATED(mask_sh)\
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TF_SF(CM0_CM_MEM_PWR_STATUS, BLNDGAM_MEM_PWR_STATE, mask_sh), \
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TF_SF(CM0_CM_BLNDGAM_CONTROL, CM_BLNDGAM_MODE, mask_sh), \
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TF_SF(CM0_CM_BLNDGAM_CONTROL, CM_BLNDGAM_MODE_CURRENT, mask_sh), \
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TF_SF(CM0_CM_BLNDGAM_CONTROL, CM_BLNDGAM_SELECT_CURRENT, mask_sh), \
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@ -446,7 +447,8 @@
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type CM_BLNDGAM_MODE_CURRENT; \
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type CM_BLNDGAM_SELECT_CURRENT; \
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type CM_BLNDGAM_SELECT; \
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type GAMCOR_MEM_PWR_STATE
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type GAMCOR_MEM_PWR_STATE; \
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type BLNDGAM_MEM_PWR_STATE
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struct dcn3_dpp_shift {
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DPP_REG_FIELD_LIST_DCN3(uint8_t);
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