diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c new file mode 100644 index 000000000000..9133646f6d5f --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c @@ -0,0 +1,563 @@ +/* + * Copyright 2020 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#include "dccg.h" +#include "clk_mgr_internal.h" + +#include "dcn30_clk_mgr_smu_msg.h" +#include "dcn20/dcn20_clk_mgr.h" +#include "dce100/dce_clk_mgr.h" +#include "reg_helper.h" +#include "core_types.h" +#include "dm_helpers.h" + +#include "atomfirmware.h" + + +#include "sienna_cichlid_ip_offset.h" +#include "dcn/dcn_3_0_0_offset.h" +#include "dcn/dcn_3_0_0_sh_mask.h" + +#include "nbio/nbio_7_4_offset.h" + +#include "dcn/dpcs_3_0_0_offset.h" +#include "dcn/dpcs_3_0_0_sh_mask.h" + +#include "mmhub/mmhub_2_0_0_offset.h" +#include "mmhub/mmhub_2_0_0_sh_mask.h" +/*we don't have clk folder yet*/ +#include "dcn30/dcn30_clk_mgr.h" + +#undef FN +#define FN(reg_name, field_name) \ + clk_mgr->clk_mgr_shift->field_name, clk_mgr->clk_mgr_mask->field_name + +#define REG(reg) \ + (clk_mgr->regs->reg) + +#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg + +#define BASE(seg) BASE_INNER(seg) + +#define SR(reg_name)\ + .reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \ + mm ## reg_name + +#undef CLK_SRI +#define CLK_SRI(reg_name, block, inst)\ + .reg_name = mm ## block ## _ ## reg_name + +static const struct clk_mgr_registers clk_mgr_regs = { + CLK_REG_LIST_DCN3() +}; + +static const struct clk_mgr_shift clk_mgr_shift = { + CLK_COMMON_MASK_SH_LIST_DCN20_BASE(__SHIFT) +}; + +static const struct clk_mgr_mask clk_mgr_mask = { + CLK_COMMON_MASK_SH_LIST_DCN20_BASE(_MASK) +}; + + +/* Query SMU for all clock states for a particular clock */ +static void dcn3_init_single_clock(struct clk_mgr_internal *clk_mgr, PPCLK_e clk, unsigned int *entry_0, unsigned int *num_levels) +{ + unsigned int i; + char *entry_i = (char *)entry_0; + uint32_t ret = dcn30_smu_get_dpm_freq_by_index(clk_mgr, clk, 0xFF); + + if (ret & (1 << 31)) + /* fine-grained, only min and max */ + *num_levels = 2; + else + /* discrete, a number of fixed states */ + /* will set num_levels to 0 on failure */ + *num_levels = ret & 0xFF; + + /* if the initial message failed, num_levels will be 0 */ + for (i = 0; i < *num_levels; i++) { + *((unsigned int *)entry_i) = (dcn30_smu_get_dpm_freq_by_index(clk_mgr, clk, i) & 0xFFFF); + entry_i += sizeof(clk_mgr->base.bw_params->clk_table.entries[0]); + } +} + +static void dcn3_build_wm_range_table(struct clk_mgr_internal *clk_mgr) +{ + /* defaults */ + double pstate_latency_us = clk_mgr->base.ctx->dc->dml.soc.dram_clock_change_latency_us; + double sr_exit_time_us = clk_mgr->base.ctx->dc->dml.soc.sr_exit_time_us; + double sr_enter_plus_exit_time_us = clk_mgr->base.ctx->dc->dml.soc.sr_enter_plus_exit_time_us; + uint16_t min_uclk_mhz = clk_mgr->base.bw_params->clk_table.entries[0].memclk_mhz; + + /* Set A - Normal - default values*/ + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].valid = true; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].dml_input.pstate_latency_us = pstate_latency_us; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].dml_input.sr_exit_time_us = sr_exit_time_us; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].dml_input.sr_enter_plus_exit_time_us = sr_enter_plus_exit_time_us; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].pmfw_breakdown.wm_type = WATERMARKS_CLOCK_RANGE; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].pmfw_breakdown.min_dcfclk = 0; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].pmfw_breakdown.max_dcfclk = 0xFFFF; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].pmfw_breakdown.min_uclk = min_uclk_mhz; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_A].pmfw_breakdown.max_uclk = 0xFFFF; + + /* Set B - Performance - higher minimum clocks */ +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].valid = true; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].dml_input.pstate_latency_us = pstate_latency_us; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].dml_input.sr_exit_time_us = sr_exit_time_us; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].dml_input.sr_enter_plus_exit_time_us = sr_enter_plus_exit_time_us; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].pmfw_breakdown.wm_type = WATERMARKS_CLOCK_RANGE; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].pmfw_breakdown.min_dcfclk = TUNED VALUE; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].pmfw_breakdown.max_dcfclk = 0xFFFF; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].pmfw_breakdown.min_uclk = TUNED VALUE; +// clk_mgr->base.bw_params->wm_table.nv_entries[WM_B].pmfw_breakdown.max_uclk = 0xFFFF; + + /* Set C - Dummy P-State - P-State latency set to "dummy p-state" value */ + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].valid = true; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].dml_input.pstate_latency_us = clk_mgr->base.ctx->dc->dml.soc.dummy_pstate_latency_us; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].dml_input.sr_exit_time_us = sr_exit_time_us; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].dml_input.sr_enter_plus_exit_time_us = sr_enter_plus_exit_time_us; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].pmfw_breakdown.wm_type = WATERMARKS_DUMMY_PSTATE; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].pmfw_breakdown.min_dcfclk = 0; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].pmfw_breakdown.max_dcfclk = 0xFFFF; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].pmfw_breakdown.min_uclk = min_uclk_mhz; + clk_mgr->base.bw_params->wm_table.nv_entries[WM_C].pmfw_breakdown.max_uclk = 0xFFFF; + +} + +void dcn3_init_clocks(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + unsigned int num_levels; + + memset(&(clk_mgr_base->clks), 0, sizeof(struct dc_clocks)); + clk_mgr_base->clks.p_state_change_support = true; + clk_mgr_base->clks.prev_p_state_change_support = true; + clk_mgr->smu_present = false; + + if (!clk_mgr_base->bw_params) + return; + + if (!clk_mgr_base->force_smu_not_present && dcn30_smu_get_smu_version(clk_mgr, &clk_mgr->smu_ver)) + clk_mgr->smu_present = true; + + if (!clk_mgr->smu_present) + return; + + // do we fail if these fail? if so, how? do we not care to check? + dcn30_smu_check_driver_if_version(clk_mgr); + dcn30_smu_check_msg_header_version(clk_mgr); + + /* DCFCLK */ + dcn3_init_single_clock(clk_mgr, PPCLK_DCEFCLK, + &clk_mgr_base->bw_params->clk_table.entries[0].dcfclk_mhz, + &num_levels); + + /* DTBCLK */ + dcn3_init_single_clock(clk_mgr, PPCLK_DTBCLK, + &clk_mgr_base->bw_params->clk_table.entries[0].dtbclk_mhz, + &num_levels); + + // DPREFCLK ??? + + /* DISPCLK */ + dcn3_init_single_clock(clk_mgr, PPCLK_DISPCLK, + &clk_mgr_base->bw_params->clk_table.entries[0].dispclk_mhz, + &num_levels); + + /* DPPCLK */ + dcn3_init_single_clock(clk_mgr, PPCLK_PIXCLK, + &clk_mgr_base->bw_params->clk_table.entries[0].dppclk_mhz, + &num_levels); + + /* PHYCLK */ + dcn3_init_single_clock(clk_mgr, PPCLK_PHYCLK, + &clk_mgr_base->bw_params->clk_table.entries[0].phyclk_mhz, + &num_levels); + + /* Get UCLK, update bounding box */ + clk_mgr_base->funcs->get_memclk_states_from_smu(clk_mgr_base); + + /* WM range table */ + dcn3_build_wm_range_table(clk_mgr); +} + +static int dcn30_get_vco_frequency_from_reg(struct clk_mgr_internal *clk_mgr) +{ + /* get FbMult value */ + struct fixed31_32 pll_req; + /* get FbMult value */ + uint32_t pll_req_reg = REG_READ(CLK0_CLK_PLL_REQ); + + /* set up a fixed-point number + * this works because the int part is on the right edge of the register + * and the frac part is on the left edge + */ + pll_req = dc_fixpt_from_int(pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_int); + pll_req.value |= pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_frac; + + /* multiply by REFCLK period */ + pll_req = dc_fixpt_mul_int(pll_req, clk_mgr->dfs_ref_freq_khz); + + return dc_fixpt_floor(pll_req); +} + +static void dcn3_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk; + struct dc *dc = clk_mgr_base->ctx->dc; + int display_count; + bool update_dppclk = false; + bool update_dispclk = false; + bool enter_display_off = false; + bool dpp_clock_lowered = false; + struct dmcu *dmcu = clk_mgr_base->ctx->dc->res_pool->dmcu; + bool force_reset = false; + bool update_uclk = false; + + if (dc->work_arounds.skip_clock_update || !clk_mgr->smu_present) + return; + + if (clk_mgr_base->clks.dispclk_khz == 0 || + (dc->debug.force_clock_mode & 0x1)) { + /* this is from resume or boot up, if forced_clock cfg option used, we bypass program dispclk and DPPCLK, but need set them for S3. */ + force_reset = true; + + dcn2_read_clocks_from_hw_dentist(clk_mgr_base); + + /* force_clock_mode 0x1: force reset the clock even it is the same clock as long as it is in Passive level. */ + } + display_count = clk_mgr_helper_get_active_display_cnt(dc, context); + + if (display_count == 0) + enter_display_off = true; + + if (enter_display_off == safe_to_lower) + dcn30_smu_set_num_of_displays(clk_mgr, display_count); + + if (dc->debug.force_min_dcfclk_mhz > 0) + new_clocks->dcfclk_khz = (new_clocks->dcfclk_khz > (dc->debug.force_min_dcfclk_mhz * 1000)) ? + new_clocks->dcfclk_khz : (dc->debug.force_min_dcfclk_mhz * 1000); + + if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz)) { + clk_mgr_base->clks.dcfclk_khz = new_clocks->dcfclk_khz; + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DCEFCLK, clk_mgr_base->clks.dcfclk_khz / 1000); + } + + if (should_set_clock(safe_to_lower, new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz)) { + clk_mgr_base->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz; + dcn30_smu_set_min_deep_sleep_dcef_clk(clk_mgr, clk_mgr_base->clks.dcfclk_deep_sleep_khz / 1000); + } + + if (should_set_clock(safe_to_lower, new_clocks->socclk_khz, clk_mgr_base->clks.socclk_khz)) + /* We don't actually care about socclk, don't notify SMU of hard min */ + clk_mgr_base->clks.socclk_khz = new_clocks->socclk_khz; + + clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support; + if (should_update_pstate_support(safe_to_lower, new_clocks->p_state_change_support, clk_mgr_base->clks.p_state_change_support)) { + clk_mgr_base->clks.p_state_change_support = new_clocks->p_state_change_support; + + /* to disable P-State switching, set UCLK min = max */ + if (!clk_mgr_base->clks.p_state_change_support) + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, + clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries - 1].memclk_mhz); + } + + /* Always update saved value, even if new value not set due to P-State switching unsupported */ + if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr_base->clks.dramclk_khz)) { + clk_mgr_base->clks.dramclk_khz = new_clocks->dramclk_khz; + update_uclk = true; + } + + /* set UCLK to requested value if P-State switching is supported, or to re-enable P-State switching */ + if (clk_mgr_base->clks.p_state_change_support && + (update_uclk || !clk_mgr_base->clks.prev_p_state_change_support)) + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, clk_mgr_base->clks.dramclk_khz / 1000); + + if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr_base->clks.dppclk_khz)) { + if (clk_mgr_base->clks.dppclk_khz > new_clocks->dppclk_khz) + dpp_clock_lowered = true; + + clk_mgr_base->clks.dppclk_khz = new_clocks->dppclk_khz; + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_PIXCLK, clk_mgr_base->clks.dppclk_khz / 1000); + update_dppclk = true; + } + + if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) { + clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz; + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, clk_mgr_base->clks.dispclk_khz / 1000); + update_dispclk = true; + } + + if (dc->config.forced_clocks == false || (force_reset && safe_to_lower)) { + if (dpp_clock_lowered) { + /* if clock is being lowered, increase DTO before lowering refclk */ + dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); + dcn20_update_clocks_update_dentist(clk_mgr); + } else { + /* if clock is being raised, increase refclk before lowering DTO */ + if (update_dppclk || update_dispclk) + dcn20_update_clocks_update_dentist(clk_mgr); + /* There is a check inside dcn20_update_clocks_update_dpp_dto which ensures + * that we do not lower dto when it is not safe to lower. We do not need to + * compare the current and new dppclk before calling this function.*/ + dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); + } + } + + if (update_dispclk && dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) + /*update dmcu for wait_loop count*/ + dmcu->funcs->set_psr_wait_loop(dmcu, + clk_mgr_base->clks.dispclk_khz / 1000 / 7); +} + + +static void dcn3_notify_wm_ranges(struct clk_mgr *clk_mgr_base) +{ + unsigned int i; + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + WatermarksExternal_t *table = (WatermarksExternal_t *) clk_mgr->wm_range_table; + + if (!clk_mgr->smu_present) + return; + + if (!table) + // should log failure + return; + + memset(table, 0, sizeof(*table)); + + /* collect valid ranges, place in pmfw table */ + for (i = 0; i < WM_SET_COUNT; i++) + if (clk_mgr->base.bw_params->wm_table.nv_entries[i].valid) { + table->Watermarks.WatermarkRow[WM_DCEFCLK][i].MinClock = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.min_dcfclk; + table->Watermarks.WatermarkRow[WM_DCEFCLK][i].MaxClock = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.max_dcfclk; + table->Watermarks.WatermarkRow[WM_DCEFCLK][i].MinUclk = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.min_uclk; + table->Watermarks.WatermarkRow[WM_DCEFCLK][i].MaxUclk = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.max_uclk; + table->Watermarks.WatermarkRow[WM_DCEFCLK][i].WmSetting = i; + table->Watermarks.WatermarkRow[WM_DCEFCLK][i].Flags = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.wm_type; + } + + dcn30_smu_set_dram_addr_high(clk_mgr, clk_mgr->wm_range_table_addr >> 32); + dcn30_smu_set_dram_addr_low(clk_mgr, clk_mgr->wm_range_table_addr & 0xFFFFFFFF); + dcn30_smu_transfer_wm_table_dram_2_smu(clk_mgr); +} + +/* Set min memclk to minimum, either constrained by the current mode or DPM0 */ +static void dcn3_set_hard_min_memclk(struct clk_mgr *clk_mgr_base, bool current_mode) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + if (!clk_mgr->smu_present) + return; + + if (current_mode) + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, + clk_mgr_base->clks.dramclk_khz / 1000); + else + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, + clk_mgr_base->bw_params->clk_table.entries[0].memclk_mhz); +} + +/* Set max memclk to highest DPM value */ +static void dcn3_set_hard_max_memclk(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + if (!clk_mgr->smu_present) + return; + + dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, + clk_mgr_base->bw_params->clk_table.entries[clk_mgr_base->bw_params->clk_table.num_entries - 1].memclk_mhz); +} + +/* Get current memclk states, update bounding box */ +static void dcn3_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + unsigned int num_levels; + + if (!clk_mgr->smu_present) + return; + + /* Refresh memclk states */ + dcn3_init_single_clock(clk_mgr, PPCLK_UCLK, + &clk_mgr_base->bw_params->clk_table.entries[0].memclk_mhz, + &num_levels); + clk_mgr_base->bw_params->clk_table.num_entries = num_levels ? num_levels : 1; + + /* Refresh bounding box */ + clk_mgr_base->ctx->dc->res_pool->funcs->update_bw_bounding_box( + clk_mgr->base.ctx->dc, clk_mgr_base->bw_params); +} + +static bool dcn3_are_clock_states_equal(struct dc_clocks *a, + struct dc_clocks *b) +{ + if (a->dispclk_khz != b->dispclk_khz) + return false; + else if (a->dppclk_khz != b->dppclk_khz) + return false; + else if (a->dcfclk_khz != b->dcfclk_khz) + return false; + else if (a->dcfclk_deep_sleep_khz != b->dcfclk_deep_sleep_khz) + return false; + else if (a->dramclk_khz != b->dramclk_khz) + return false; + else if (a->p_state_change_support != b->p_state_change_support) + return false; + + return true; +} + +static void dcn3_enable_pme_wa(struct clk_mgr *clk_mgr_base) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + + if (!clk_mgr->smu_present) + return; + + dcn30_smu_set_pme_workaround(clk_mgr); +} + +/* Notify clk_mgr of a change in link rate, update phyclk frequency if necessary */ +static void dcn30_notify_link_rate_change(struct clk_mgr *clk_mgr_base, struct dc_link *link) +{ + struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); + unsigned int i, max_phyclk_req = clk_mgr_base->bw_params->clk_table.entries[0].phyclk_mhz * 1000; + + if (!clk_mgr->smu_present) + return; + + clk_mgr->cur_phyclk_req_table[link->link_index] = link->cur_link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ; + + for (i = 0; i < MAX_PIPES * 2; i++) { + if (clk_mgr->cur_phyclk_req_table[i] > max_phyclk_req) + max_phyclk_req = clk_mgr->cur_phyclk_req_table[i]; + } + + if (max_phyclk_req != clk_mgr_base->clks.phyclk_khz) { + clk_mgr_base->clks.phyclk_khz = max_phyclk_req; + dcn30_smu_set_hard_min_by_freq(clk_mgr, PPCLK_PHYCLK, clk_mgr_base->clks.phyclk_khz / 1000); + } +} + +static struct clk_mgr_funcs dcn3_funcs = { + .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, + .update_clocks = dcn3_update_clocks, + .init_clocks = dcn3_init_clocks, + .notify_wm_ranges = dcn3_notify_wm_ranges, + .set_hard_min_memclk = dcn3_set_hard_min_memclk, + .set_hard_max_memclk = dcn3_set_hard_max_memclk, + .get_memclk_states_from_smu = dcn3_get_memclk_states_from_smu, + .are_clock_states_equal = dcn3_are_clock_states_equal, + .enable_pme_wa = dcn3_enable_pme_wa, + .notify_link_rate_change = dcn30_notify_link_rate_change, +}; + +static void dcn3_init_clocks_fpga(struct clk_mgr *clk_mgr) +{ + dcn2_init_clocks(clk_mgr); + +/* TODO: Implement the functions and remove the ifndef guard */ +} + +static struct clk_mgr_funcs dcn3_fpga_funcs = { + .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, + .update_clocks = dcn2_update_clocks_fpga, + .init_clocks = dcn3_init_clocks_fpga, +}; + +/*todo for dcn30 for clk register offset*/ +void dcn3_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr, + struct pp_smu_funcs *pp_smu, + struct dccg *dccg) +{ + clk_mgr->base.ctx = ctx; + clk_mgr->base.funcs = &dcn3_funcs; + clk_mgr->regs = &clk_mgr_regs; + clk_mgr->clk_mgr_shift = &clk_mgr_shift; + clk_mgr->clk_mgr_mask = &clk_mgr_mask; + + clk_mgr->dccg = dccg; + clk_mgr->dfs_bypass_disp_clk = 0; + + clk_mgr->dprefclk_ss_percentage = 0; + clk_mgr->dprefclk_ss_divider = 1000; + clk_mgr->ss_on_dprefclk = false; + clk_mgr->dfs_ref_freq_khz = 100000; + + clk_mgr->base.dprefclk_khz = 730000; // 700 MHz planned if VCO is 3.85 GHz, will be retrieved + + if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) { + clk_mgr->base.funcs = &dcn3_fpga_funcs; + clk_mgr->base.dentist_vco_freq_khz = 3650000; + + } else { + struct clk_state_registers_and_bypass s = { 0 }; + + /* integer part is now VCO frequency in kHz */ + clk_mgr->base.dentist_vco_freq_khz = dcn30_get_vco_frequency_from_reg(clk_mgr); + + /* in case we don't get a value from the register, use default */ + if (clk_mgr->base.dentist_vco_freq_khz == 0) + clk_mgr->base.dentist_vco_freq_khz = 3650000; + /* Convert dprefclk units from MHz to KHz */ + /* Value already divided by 10, some resolution lost */ + + /*TODO: uncomment assert once dcn3_dump_clk_registers is implemented */ + //ASSERT(s.dprefclk != 0); + if (s.dprefclk != 0) + clk_mgr->base.dprefclk_khz = s.dprefclk * 1000; + } + + clk_mgr->dfs_bypass_enabled = false; + + clk_mgr->smu_present = false; + + dce_clock_read_ss_info(clk_mgr); + + clk_mgr->base.bw_params = kzalloc(sizeof(*clk_mgr->base.bw_params), GFP_KERNEL); + + /* need physical address of table to give to PMFW */ + clk_mgr->wm_range_table = dm_helpers_allocate_gpu_mem(clk_mgr->base.ctx, + DC_MEM_ALLOC_TYPE_GART, sizeof(WatermarksExternal_t), + &clk_mgr->wm_range_table_addr); +} + +void dcn3_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr) +{ + if (clk_mgr->base.bw_params) + kfree(clk_mgr->base.bw_params); + + if (clk_mgr->wm_range_table) + dm_helpers_free_gpu_mem(clk_mgr->base.ctx, DC_MEM_ALLOC_TYPE_GART, + clk_mgr->wm_range_table); +} |