diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dce112')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c | 239 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h | 39 |
2 files changed, 278 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c new file mode 100644 index 000000000000..7c746ef1e32e --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c @@ -0,0 +1,239 @@ +/* + * Copyright 2012-16 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 "core_types.h" +#include "clk_mgr_internal.h" + +#include "dce/dce_11_2_d.h" +#include "dce/dce_11_2_sh_mask.h" +#include "dce100/dce_clk_mgr.h" +#include "dce110/dce110_clk_mgr.h" +#include "dce112_clk_mgr.h" +#include "dal_asic_id.h" + +/* set register offset */ +#define SR(reg_name)\ + .reg_name = mm ## reg_name + +/* set register offset with instance */ +#define SRI(reg_name, block, id)\ + .reg_name = mm ## block ## id ## _ ## reg_name + +static const struct clk_mgr_registers disp_clk_regs = { + CLK_COMMON_REG_LIST_DCE_BASE() +}; + +static const struct clk_mgr_shift disp_clk_shift = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(__SHIFT) +}; + +static const struct clk_mgr_mask disp_clk_mask = { + CLK_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(_MASK) +}; + +static const struct state_dependent_clocks dce112_max_clks_by_state[] = { +/*ClocksStateInvalid - should not be used*/ +{ .display_clk_khz = 0, .pixel_clk_khz = 0 }, +/*ClocksStateUltraLow - currently by HW design team not supposed to be used*/ +{ .display_clk_khz = 389189, .pixel_clk_khz = 346672 }, +/*ClocksStateLow*/ +{ .display_clk_khz = 459000, .pixel_clk_khz = 400000 }, +/*ClocksStateNominal*/ +{ .display_clk_khz = 667000, .pixel_clk_khz = 600000 }, +/*ClocksStatePerformance*/ +{ .display_clk_khz = 1132000, .pixel_clk_khz = 600000 } }; + + +//TODO: remove use the two broken down functions +int dce112_set_clock(struct clk_mgr *clk_mgr_base, int requested_clk_khz) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct bp_set_dce_clock_parameters dce_clk_params; + struct dc_bios *bp = clk_mgr_base->ctx->dc_bios; + struct dc *core_dc = clk_mgr_base->ctx->dc; + struct dmcu *dmcu = core_dc->res_pool->dmcu; + int actual_clock = requested_clk_khz; + /* Prepare to program display clock*/ + memset(&dce_clk_params, 0, sizeof(dce_clk_params)); + + /* Make sure requested clock isn't lower than minimum threshold*/ + if (requested_clk_khz > 0) + requested_clk_khz = max(requested_clk_khz, + clk_mgr_dce->dentist_vco_freq_khz / 62); + + dce_clk_params.target_clock_frequency = requested_clk_khz; + dce_clk_params.pll_id = CLOCK_SOURCE_ID_DFS; + dce_clk_params.clock_type = DCECLOCK_TYPE_DISPLAY_CLOCK; + + bp->funcs->set_dce_clock(bp, &dce_clk_params); + actual_clock = dce_clk_params.target_clock_frequency; + + /* + * from power down, we need mark the clock state as ClocksStateNominal + * from HWReset, so when resume we will call pplib voltage regulator. + */ + if (requested_clk_khz == 0) + clk_mgr_dce->cur_min_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; + + /*Program DP ref Clock*/ + /*VBIOS will determine DPREFCLK frequency, so we don't set it*/ + dce_clk_params.target_clock_frequency = 0; + dce_clk_params.clock_type = DCECLOCK_TYPE_DPREFCLK; + if (!ASICREV_IS_VEGA20_P(clk_mgr_base->ctx->asic_id.hw_internal_rev)) + dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = + (dce_clk_params.pll_id == + CLOCK_SOURCE_COMBO_DISPLAY_PLL0); + else + dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = false; + + bp->funcs->set_dce_clock(bp, &dce_clk_params); + + if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) { + if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { + if (clk_mgr_dce->dfs_bypass_disp_clk != actual_clock) + dmcu->funcs->set_psr_wait_loop(dmcu, + actual_clock / 1000 / 7); + } + } + + clk_mgr_dce->dfs_bypass_disp_clk = actual_clock; + return actual_clock; +} + +int dce112_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_clk_khz) +{ + struct bp_set_dce_clock_parameters dce_clk_params; + struct dc_bios *bp = clk_mgr->base.ctx->dc_bios; + struct dc *core_dc = clk_mgr->base.ctx->dc; + struct dmcu *dmcu = core_dc->res_pool->dmcu; + int actual_clock = requested_clk_khz; + /* Prepare to program display clock*/ + memset(&dce_clk_params, 0, sizeof(dce_clk_params)); + + /* Make sure requested clock isn't lower than minimum threshold*/ + if (requested_clk_khz > 0) + requested_clk_khz = max(requested_clk_khz, + clk_mgr->dentist_vco_freq_khz / 62); + + dce_clk_params.target_clock_frequency = requested_clk_khz; + dce_clk_params.pll_id = CLOCK_SOURCE_ID_DFS; + dce_clk_params.clock_type = DCECLOCK_TYPE_DISPLAY_CLOCK; + + bp->funcs->set_dce_clock(bp, &dce_clk_params); + actual_clock = dce_clk_params.target_clock_frequency; + + /* + * from power down, we need mark the clock state as ClocksStateNominal + * from HWReset, so when resume we will call pplib voltage regulator. + */ + if (requested_clk_khz == 0) + clk_mgr->cur_min_clks_state = DM_PP_CLOCKS_STATE_NOMINAL; + + + if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) { + if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { + if (clk_mgr->dfs_bypass_disp_clk != actual_clock) + dmcu->funcs->set_psr_wait_loop(dmcu, + actual_clock / 1000 / 7); + } + } + + clk_mgr->dfs_bypass_disp_clk = actual_clock; + return actual_clock; + +} + +int dce112_set_dprefclk(struct clk_mgr_internal *clk_mgr) +{ + struct bp_set_dce_clock_parameters dce_clk_params; + struct dc_bios *bp = clk_mgr->base.ctx->dc_bios; + + memset(&dce_clk_params, 0, sizeof(dce_clk_params)); + + /*Program DP ref Clock*/ + /*VBIOS will determine DPREFCLK frequency, so we don't set it*/ + dce_clk_params.target_clock_frequency = 0; + dce_clk_params.pll_id = CLOCK_SOURCE_ID_DFS; + dce_clk_params.clock_type = DCECLOCK_TYPE_DPREFCLK; + if (!ASICREV_IS_VEGA20_P(clk_mgr->base.ctx->asic_id.hw_internal_rev)) + dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = + (dce_clk_params.pll_id == + CLOCK_SOURCE_COMBO_DISPLAY_PLL0); + else + dce_clk_params.flags.USE_GENLOCK_AS_SOURCE_FOR_DPREFCLK = false; + + bp->funcs->set_dce_clock(bp, &dce_clk_params); + + /* Returns the dp_refclk that was set */ + return dce_clk_params.target_clock_frequency; +} + +static void dce112_update_clocks(struct clk_mgr *clk_mgr_base, + struct dc_state *context, + bool safe_to_lower) +{ + struct clk_mgr_internal *clk_mgr_dce = TO_CLK_MGR_INTERNAL(clk_mgr_base); + struct dm_pp_power_level_change_request level_change_req; + int patched_disp_clk = context->bw_ctx.bw.dce.dispclk_khz; + + /*TODO: W/A for dal3 linux, investigate why this works */ + if (!clk_mgr_dce->dfs_bypass_active) + patched_disp_clk = patched_disp_clk * 115 / 100; + + level_change_req.power_level = dce_get_required_clocks_state(clk_mgr_base, context); + /* get max clock state from PPLIB */ + if ((level_change_req.power_level < clk_mgr_dce->cur_min_clks_state && safe_to_lower) + || level_change_req.power_level > clk_mgr_dce->cur_min_clks_state) { + if (dm_pp_apply_power_level_change_request(clk_mgr_base->ctx, &level_change_req)) + clk_mgr_dce->cur_min_clks_state = level_change_req.power_level; + } + + if (should_set_clock(safe_to_lower, patched_disp_clk, clk_mgr_base->clks.dispclk_khz)) { + patched_disp_clk = dce112_set_clock(clk_mgr_base, patched_disp_clk); + clk_mgr_base->clks.dispclk_khz = patched_disp_clk; + } + dce11_pplib_apply_display_requirements(clk_mgr_base->ctx->dc, context); +} + +static struct clk_mgr_funcs dce112_funcs = { + .get_dp_ref_clk_frequency = dce_get_dp_ref_freq_khz, + .update_clocks = dce112_update_clocks +}; + +void dce112_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr) +{ + dce_clk_mgr_construct(ctx, clk_mgr); + + memcpy(clk_mgr->max_clks_by_state, + dce112_max_clks_by_state, + sizeof(dce112_max_clks_by_state)); + + clk_mgr->regs = &disp_clk_regs; + clk_mgr->clk_mgr_shift = &disp_clk_shift; + clk_mgr->clk_mgr_mask = &disp_clk_mask; + clk_mgr->base.funcs = &dce112_funcs; +} diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h new file mode 100644 index 000000000000..dfb06db118e1 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.h @@ -0,0 +1,39 @@ +/* + * Copyright 2012-16 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 + * + */ + +#ifndef DAL_DC_DCE_DCE112_CLK_MGR_H_ +#define DAL_DC_DCE_DCE112_CLK_MGR_H_ + + +void dce112_clk_mgr_construct( + struct dc_context *ctx, + struct clk_mgr_internal *clk_mgr); + +/* functions shared with other clk mgr */ +int dce112_set_clock(struct clk_mgr *clk_mgr_base, int requested_clk_khz); +int dce112_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_clk_khz); +int dce112_set_dprefclk(struct clk_mgr_internal *clk_mgr); + +#endif /* DAL_DC_DCE_DCE112_CLK_MGR_H_ */ |