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drm/amd/display: Add clock control callbacks
[why & how] Add clock source selection an control functions based on spec Reviewed-by: Muhammad Ahmed <ahmed.ahmed@amd.com> Signed-off-by: Hansen Dsouza <Hansen.Dsouza@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
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be64336307
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78c508a1c1
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@ -41,13 +41,22 @@
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#define DC_LOGGER \
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dccg->ctx->logger
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enum physymclk_fe_source {
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PHYSYMCLK_FE_SYMCLK_A = 0, // Select functional clock from backend symclk A
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PHYSYMCLK_FE_SYMCLK_B,
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PHYSYMCLK_FE_SYMCLK_C,
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PHYSYMCLK_FE_SYMCLK_D,
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PHYSYMCLK_FE_SYMCLK_E,
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PHYSYMCLK_FE_REFCLK = 0xFF, // Arbitrary value to pass refclk selection in software
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enum symclk_fe_source {
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SYMCLK_FE_SYMCLK_A = 0, // Select functional clock from backend symclk A
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SYMCLK_FE_SYMCLK_B,
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SYMCLK_FE_SYMCLK_C,
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SYMCLK_FE_SYMCLK_D,
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SYMCLK_FE_SYMCLK_E,
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SYMCLK_FE_REFCLK = 0xFF, // Arbitrary value to pass refclk selection in software
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};
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enum symclk_be_source {
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SYMCLK_BE_PHYCLK = 0, // Select phy clk when sym_clk_enable = 1
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SYMCLK_BE_DPIACLK_810 = 4,
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SYMCLK_BE_DPIACLK_162 = 5,
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SYMCLK_BE_DPIACLK_540 = 6,
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SYMCLK_BE_DPIACLK_270 = 7,
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SYMCLK_BE_REFCLK = 0xFF, // Arbitrary value to pass refclk selection in software
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};
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enum physymclk_source {
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@ -252,7 +261,7 @@ static void dccg35_set_physymclk_rcg(
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}
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}
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static void dccg35_set_physymclk_fe_rcg(
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static void dccg35_set_symclk_fe_rcg(
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struct dccg *dccg,
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int inst,
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bool enable)
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@ -289,6 +298,45 @@ static void dccg35_set_physymclk_fe_rcg(
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}
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}
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static void dccg35_set_symclk_be_rcg(
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struct dccg *dccg,
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int inst,
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bool enable)
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{
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struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
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/* TBD add symclk_be in rcg control bits */
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if (!dccg->ctx->dc->debug.root_clock_optimization.bits.physymclk)
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return;
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switch (inst) {
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case 0:
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REG_UPDATE(DCCG_GATE_DISABLE_CNTL5,
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SYMCLKA_ROOT_GATE_DISABLE, enable ? 0 : 1);
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break;
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case 1:
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REG_UPDATE(DCCG_GATE_DISABLE_CNTL5,
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SYMCLKB_ROOT_GATE_DISABLE, enable ? 0 : 1);
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break;
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case 2:
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REG_UPDATE(DCCG_GATE_DISABLE_CNTL5,
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SYMCLKC_ROOT_GATE_DISABLE, enable ? 0 : 1);
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break;
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case 3:
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REG_UPDATE(DCCG_GATE_DISABLE_CNTL5,
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SYMCLKD_ROOT_GATE_DISABLE, enable ? 0 : 1);
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break;
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case 4:
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REG_UPDATE(DCCG_GATE_DISABLE_CNTL5,
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SYMCLKE_ROOT_GATE_DISABLE, enable ? 0 : 1);
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break;
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default:
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BREAK_TO_DEBUGGER();
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return;
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}
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}
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static void dccg35_set_dtbclk_p_rcg(struct dccg *dccg, int inst, bool enable)
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{
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@ -665,6 +713,42 @@ static void dccg35_set_physymclk_src_new(
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}
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}
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static void dccg35_set_symclk_be_src_new(
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struct dccg *dccg,
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enum symclk_be_source src,
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int inst)
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{
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struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
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switch (inst) {
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case 0:
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REG_UPDATE_2(SYMCLKA_CLOCK_ENABLE,
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SYMCLKA_CLOCK_ENABLE, (src == SYMCLK_BE_REFCLK) ? 0 : 1,
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SYMCLKA_SRC_SEL, (src == SYMCLK_BE_REFCLK) ? 0 : src);
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break;
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case 1:
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REG_UPDATE_2(SYMCLKB_CLOCK_ENABLE,
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SYMCLKB_CLOCK_ENABLE, (src == SYMCLK_BE_REFCLK) ? 0 : 1,
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SYMCLKB_SRC_SEL, (src == SYMCLK_BE_REFCLK) ? 0 : src);
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break;
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case 2:
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REG_UPDATE_2(SYMCLKC_CLOCK_ENABLE,
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SYMCLKC_CLOCK_ENABLE, (src == SYMCLK_BE_REFCLK) ? 0 : 1,
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SYMCLKC_SRC_SEL, (src == SYMCLK_BE_REFCLK) ? 0 : src);
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break;
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case 3:
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REG_UPDATE_2(SYMCLKD_CLOCK_ENABLE,
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SYMCLKD_CLOCK_ENABLE, (src == SYMCLK_BE_REFCLK) ? 0 : 1,
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SYMCLKD_SRC_SEL, (src == SYMCLK_BE_REFCLK) ? 0 : src);
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break;
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case 4:
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REG_UPDATE_2(SYMCLKE_CLOCK_ENABLE,
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SYMCLKE_CLOCK_ENABLE, (src == SYMCLK_BE_REFCLK) ? 0 : 1,
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SYMCLKE_SRC_SEL, (src == SYMCLK_BE_REFCLK) ? 0 : src);
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break;
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}
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}
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static int dccg35_is_symclk_fe_src_functional_be(struct dccg *dccg,
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int symclk_fe_inst,
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int symclk_be_inst)
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@ -699,35 +783,35 @@ static int dccg35_is_symclk_fe_src_functional_be(struct dccg *dccg,
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return 0;
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}
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static void dccg35_set_symclk_fe_src_new(struct dccg *dccg, enum physymclk_fe_source src, int inst)
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static void dccg35_set_symclk_fe_src_new(struct dccg *dccg, enum symclk_fe_source src, int inst)
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{
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struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
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switch (inst) {
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case 0:
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REG_UPDATE_2(SYMCLKA_CLOCK_ENABLE,
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SYMCLKA_FE_EN, (src == PHYSYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKA_FE_SRC_SEL, (src == PHYSYMCLK_FE_REFCLK) ? 0 : src);
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SYMCLKA_FE_EN, (src == SYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKA_FE_SRC_SEL, (src == SYMCLK_FE_REFCLK) ? 0 : src);
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break;
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case 1:
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REG_UPDATE_2(SYMCLKB_CLOCK_ENABLE,
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SYMCLKB_FE_EN, (src == PHYSYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKB_FE_SRC_SEL, (src == PHYSYMCLK_FE_REFCLK) ? 0 : src);
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SYMCLKB_FE_EN, (src == SYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKB_FE_SRC_SEL, (src == SYMCLK_FE_REFCLK) ? 0 : src);
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break;
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case 2:
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REG_UPDATE_2(SYMCLKC_CLOCK_ENABLE,
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SYMCLKC_FE_EN, (src == PHYSYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKC_FE_SRC_SEL, (src == PHYSYMCLK_FE_REFCLK) ? 0 : src);
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SYMCLKC_FE_EN, (src == SYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKC_FE_SRC_SEL, (src == SYMCLK_FE_REFCLK) ? 0 : src);
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break;
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case 3:
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REG_UPDATE_2(SYMCLKD_CLOCK_ENABLE,
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SYMCLKD_FE_EN, (src == PHYSYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKD_FE_SRC_SEL, (src == PHYSYMCLK_FE_REFCLK) ? 0 : src);
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SYMCLKD_FE_EN, (src == SYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKD_FE_SRC_SEL, (src == SYMCLK_FE_REFCLK) ? 0 : src);
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break;
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case 4:
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REG_UPDATE_2(SYMCLKE_CLOCK_ENABLE,
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SYMCLKE_FE_EN, (src == PHYSYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKE_FE_SRC_SEL, (src == PHYSYMCLK_FE_REFCLK) ? 0 : src);
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SYMCLKE_FE_EN, (src == SYMCLK_FE_REFCLK) ? 0 : 1,
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SYMCLKE_FE_SRC_SEL, (src == SYMCLK_FE_REFCLK) ? 0 : src);
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break;
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}
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}
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@ -804,9 +888,9 @@ static uint32_t dccg35_is_symclk32_se_rcg(struct dccg *dccg, int inst)
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static void dccg35_enable_symclk_fe_new(
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struct dccg *dccg,
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int inst,
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enum physymclk_fe_source src)
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enum symclk_fe_source src)
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{
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dccg35_set_physymclk_fe_rcg(dccg, inst, false);
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dccg35_set_symclk_fe_rcg(dccg, inst, false);
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dccg35_set_symclk_fe_src_new(dccg, src, inst);
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}
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@ -814,17 +898,17 @@ static void dccg35_disable_symclk_fe_new(
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struct dccg *dccg,
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int inst)
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{
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dccg35_set_symclk_fe_src_new(dccg, PHYSYMCLK_FE_REFCLK, inst);
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dccg35_set_physymclk_fe_rcg(dccg, inst, true);
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dccg35_set_symclk_fe_src_new(dccg, SYMCLK_FE_REFCLK, inst);
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dccg35_set_symclk_fe_rcg(dccg, inst, true);
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}
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static void dccg35_enable_symclk_be_new(
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struct dccg *dccg,
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int inst,
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enum physymclk_source src)
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enum symclk_be_source src)
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{
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dccg35_set_physymclk_rcg(dccg, inst, false);
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dccg35_set_physymclk_src_new(dccg, inst, src);
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dccg35_set_symclk_be_rcg(dccg, inst, false);
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dccg35_set_symclk_be_src_new(dccg, inst, src);
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}
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static void dccg35_disable_symclk_be_new(
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@ -834,7 +918,7 @@ static void dccg35_disable_symclk_be_new(
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int i;
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/* Switch from functional clock to refclock */
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dccg35_set_physymclk_src_new(dccg, inst, PHYSYMCLK_REFCLK);
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dccg35_set_symclk_be_src_new(dccg, inst, SYMCLK_BE_REFCLK);
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/* Check if any other SE connected LE and disable them */
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for (i = 0; i < 4; i++) {
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}
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}
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/* Safe to RCG SYMCLK*/
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dccg35_set_physymclk_rcg(dccg, inst, true);
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dccg35_set_symclk_be_rcg(dccg, inst, true);
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}
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static void dccg35_enable_symclk32_se_new(
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@ -2041,6 +2125,132 @@ static void dccg35_dpp_root_clock_control_cb(
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dccg35_disable_dpp_clk_new(dccg, dpp_inst);
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}
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static void dccg35_enable_symclk32_se_cb(
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struct dccg *dccg,
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int inst,
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enum phyd32clk_clock_source phyd32clk)
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{
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dccg35_enable_symclk32_se_new(dccg, inst, (enum symclk32_se_clk_source)phyd32clk);
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}
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static void dccg35_disable_symclk32_se_cb(struct dccg *dccg, int inst)
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{
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dccg35_disable_symclk32_se_new(dccg, inst);
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}
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static void dccg35_disable_symclk32_le_cb(struct dccg *dccg, int inst)
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{
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dccg35_disable_symclk32_le_new(dccg, inst);
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}
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static void dccg35_set_symclk32_le_root_clock_gating(
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struct dccg *dccg,
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int inst,
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bool power_on)
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{
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/* power_on set indicates we need to ungate
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* Currently called from optimize_bandwidth and prepare_bandwidth calls
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* Since clock source is not passed restore to refclock on ungate
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* Redundant as gating when enabled is acheived through disable_symclk32_le
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*/
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if (power_on)
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dccg35_enable_symclk32_le_new(dccg, inst, SYMCLK32_LE_REFCLK);
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else
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dccg35_disable_symclk32_le_new(dccg, inst);
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}
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static void dccg35_set_dtbclk_p_src_cb(
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struct dccg *dccg,
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enum streamclk_source src,
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uint32_t inst)
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{
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if (src == DTBCLK0)
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dccg35_enable_dtbclk_p_new(dccg, DTBCLK_DTBCLK0, inst);
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else
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dccg35_disable_dtbclk_p_new(dccg, inst);
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}
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static void dccg35_set_dtbclk_dto_cb(
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struct dccg *dccg,
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const struct dtbclk_dto_params *params)
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{
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/* set_dtbclk_p_src typ called earlier to switch to DTBCLK
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* if params->ref_dtbclk_khz and req_dtbclk_khz are 0 switch to ref-clock
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*/
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struct dcn_dccg *dccg_dcn = TO_DCN_DCCG(dccg);
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/* DTO Output Rate / Pixel Rate = 1/4 */
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int req_dtbclk_khz = params->pixclk_khz / 4;
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if (params->ref_dtbclk_khz && req_dtbclk_khz) {
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uint32_t modulo, phase;
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dccg35_enable_dtbclk_p_new(dccg, DTBCLK_DTBCLK0, params->otg_inst);
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// phase / modulo = dtbclk / dtbclk ref
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modulo = params->ref_dtbclk_khz * 1000;
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phase = req_dtbclk_khz * 1000;
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REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], modulo);
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REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], phase);
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REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst],
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DTBCLK_DTO_ENABLE[params->otg_inst], 1);
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REG_WAIT(OTG_PIXEL_RATE_CNTL[params->otg_inst],
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DTBCLKDTO_ENABLE_STATUS[params->otg_inst], 1,
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1, 100);
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/* program OTG_PIXEL_RATE_DIV for DIVK1 and DIVK2 fields */
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dccg35_set_pixel_rate_div(dccg, params->otg_inst, PIXEL_RATE_DIV_BY_1, PIXEL_RATE_DIV_BY_1);
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/* The recommended programming sequence to enable DTBCLK DTO to generate
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* valid pixel HPO DPSTREAM ENCODER, specifies that DTO source select should
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* be set only after DTO is enabled
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*/
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REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst],
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PIPE_DTO_SRC_SEL[params->otg_inst], 2);
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} else {
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dccg35_disable_dtbclk_p_new(dccg, params->otg_inst);
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REG_UPDATE_2(OTG_PIXEL_RATE_CNTL[params->otg_inst],
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DTBCLK_DTO_ENABLE[params->otg_inst], 0,
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PIPE_DTO_SRC_SEL[params->otg_inst], params->is_hdmi ? 0 : 1);
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REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], 0);
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REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], 0);
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}
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}
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static void dccg35_disable_dscclk_cb(struct dccg *dccg,
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int inst)
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{
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dccg35_disable_dscclk_new(dccg, inst);
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}
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static void dccg35_enable_dscclk_cb(struct dccg *dccg, int inst)
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{
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dccg35_enable_dscclk_new(dccg, inst, DSC_DTO_TUNED_CK_GPU_DISCLK_3);
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}
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static void dccg35_enable_symclk_se_cb(struct dccg *dccg, uint32_t stream_enc_inst, uint32_t link_enc_inst)
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{
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/* Switch to functional clock if already not selected */
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dccg35_enable_symclk_be_new(dccg, SYMCLK_BE_PHYCLK, link_enc_inst);
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dccg35_enable_symclk_fe_new(dccg, stream_enc_inst, (enum symclk_fe_source) link_enc_inst);
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}
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static void dccg35_disable_symclk_se_cb(
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struct dccg *dccg,
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uint32_t stream_enc_inst,
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uint32_t link_enc_inst)
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{
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dccg35_disable_symclk_fe_new(dccg, stream_enc_inst);
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/* DMU PHY sequence switches SYMCLK_BE (link_enc_inst) to ref clock once PHY is turned off */
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}
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static const struct dccg_funcs dccg35_funcs = {
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.update_dpp_dto = dccg35_update_dpp_dto,
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.dpp_root_clock_control = dccg35_dpp_root_clock_control,
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@ -2070,6 +2280,7 @@ static const struct dccg_funcs dccg35_funcs = {
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.enable_symclk_se = dccg35_enable_symclk_se,
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.disable_symclk_se = dccg35_disable_symclk_se,
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.set_dtbclk_p_src = dccg35_set_dtbclk_p_src,
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};
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struct dccg *dccg35_create(
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@ -2091,7 +2302,7 @@ struct dccg *dccg35_create(
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(void)&dccg35_set_symclk32_se_rcg;
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(void)&dccg35_set_symclk32_le_rcg;
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(void)&dccg35_set_physymclk_rcg;
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(void)&dccg35_set_physymclk_fe_rcg;
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(void)&dccg35_set_symclk_fe_rcg;
|
||||
(void)&dccg35_set_dtbclk_p_rcg;
|
||||
(void)&dccg35_set_dppclk_rcg;
|
||||
(void)&dccg35_set_dpstreamclk_rcg;
|
||||
|
@ -2129,6 +2340,18 @@ struct dccg *dccg35_create(
|
|||
(void)&dccg35_set_dpstreamclk_root_clock_gating_cb;
|
||||
(void)&dccg35_update_dpp_dto_cb;
|
||||
(void)&dccg35_dpp_root_clock_control_cb;
|
||||
(void)&dccg35_disable_symclk_se_cb;
|
||||
(void)&dccg35_enable_symclk_se_cb;
|
||||
(void)&dccg35_enable_dscclk_cb;
|
||||
(void)&dccg35_disable_dscclk_cb;
|
||||
(void)&dccg35_set_dtbclk_dto_cb;
|
||||
(void)&dccg35_set_dtbclk_p_src_cb;
|
||||
(void)&dccg35_set_symclk32_le_root_clock_gating;
|
||||
(void)&dccg35_disable_symclk32_le_cb;
|
||||
(void)&dccg35_set_symclk_be_src_new;
|
||||
(void)&dccg35_set_symclk_be_rcg;
|
||||
(void)&dccg35_enable_symclk32_se_cb;
|
||||
(void)&dccg35_disable_symclk32_se_cb;
|
||||
|
||||
base = &dccg_dcn->base;
|
||||
base->ctx = ctx;
|
||||
|
|
Loading…
Reference in New Issue
Block a user