| /* |
| * Copyright 2018 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 <linux/delay.h> |
| #include "dm_services.h" |
| #include "dcn20/dcn20_hubbub.h" |
| #include "dcn21_hubbub.h" |
| #include "reg_helper.h" |
| |
| #define REG(reg)\ |
| hubbub1->regs->reg |
| #define DC_LOGGER \ |
| hubbub1->base.ctx->logger |
| #define CTX \ |
| hubbub1->base.ctx |
| |
| #undef FN |
| #define FN(reg_name, field_name) \ |
| hubbub1->shifts->field_name, hubbub1->masks->field_name |
| |
| #define REG(reg)\ |
| hubbub1->regs->reg |
| |
| #define CTX \ |
| hubbub1->base.ctx |
| |
| #undef FN |
| #define FN(reg_name, field_name) \ |
| hubbub1->shifts->field_name, hubbub1->masks->field_name |
| |
| static uint32_t convert_and_clamp( |
| uint32_t wm_ns, |
| uint32_t refclk_mhz, |
| uint32_t clamp_value) |
| { |
| uint32_t ret_val = 0; |
| ret_val = wm_ns * refclk_mhz; |
| ret_val /= 1000; |
| |
| if (ret_val > clamp_value) |
| ret_val = clamp_value; |
| |
| return ret_val; |
| } |
| |
| void dcn21_dchvm_init(struct hubbub *hubbub) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| uint32_t riommu_active; |
| int i; |
| |
| //Init DCHVM block |
| REG_UPDATE(DCHVM_CTRL0, HOSTVM_INIT_REQ, 1); |
| |
| //Poll until RIOMMU_ACTIVE = 1 |
| for (i = 0; i < 100; i++) { |
| REG_GET(DCHVM_RIOMMU_STAT0, RIOMMU_ACTIVE, &riommu_active); |
| |
| if (riommu_active) |
| break; |
| else |
| udelay(5); |
| } |
| |
| if (riommu_active) { |
| //Reflect the power status of DCHUBBUB |
| REG_UPDATE(DCHVM_RIOMMU_CTRL0, HOSTVM_POWERSTATUS, 1); |
| |
| //Start rIOMMU prefetching |
| REG_UPDATE(DCHVM_RIOMMU_CTRL0, HOSTVM_PREFETCH_REQ, 1); |
| |
| // Enable dynamic clock gating |
| REG_UPDATE_4(DCHVM_CLK_CTRL, |
| HVM_DISPCLK_R_GATE_DIS, 0, |
| HVM_DISPCLK_G_GATE_DIS, 0, |
| HVM_DCFCLK_R_GATE_DIS, 0, |
| HVM_DCFCLK_G_GATE_DIS, 0); |
| |
| //Poll until HOSTVM_PREFETCH_DONE = 1 |
| REG_WAIT(DCHVM_RIOMMU_STAT0, HOSTVM_PREFETCH_DONE, 1, 5, 100); |
| |
| hubbub->riommu_active = true; |
| } |
| } |
| |
| int hubbub21_init_dchub(struct hubbub *hubbub, |
| struct dcn_hubbub_phys_addr_config *pa_config) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| struct dcn_vmid_page_table_config phys_config; |
| |
| REG_SET(DCN_VM_FB_LOCATION_BASE, 0, |
| FB_BASE, pa_config->system_aperture.fb_base >> 24); |
| REG_SET(DCN_VM_FB_LOCATION_TOP, 0, |
| FB_TOP, pa_config->system_aperture.fb_top >> 24); |
| REG_SET(DCN_VM_FB_OFFSET, 0, |
| FB_OFFSET, pa_config->system_aperture.fb_offset >> 24); |
| REG_SET(DCN_VM_AGP_BOT, 0, |
| AGP_BOT, pa_config->system_aperture.agp_bot >> 24); |
| REG_SET(DCN_VM_AGP_TOP, 0, |
| AGP_TOP, pa_config->system_aperture.agp_top >> 24); |
| REG_SET(DCN_VM_AGP_BASE, 0, |
| AGP_BASE, pa_config->system_aperture.agp_base >> 24); |
| |
| if (pa_config->gart_config.page_table_start_addr != pa_config->gart_config.page_table_end_addr) { |
| phys_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr >> 12; |
| phys_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr >> 12; |
| phys_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr | 1; //Note: hack |
| phys_config.depth = 0; |
| phys_config.block_size = 0; |
| // Init VMID 0 based on PA config |
| dcn20_vmid_setup(&hubbub1->vmid[0], &phys_config); |
| } |
| |
| dcn21_dchvm_init(hubbub); |
| |
| return hubbub1->num_vmid; |
| } |
| |
| bool hubbub21_program_urgent_watermarks( |
| struct hubbub *hubbub, |
| struct dcn_watermark_set *watermarks, |
| unsigned int refclk_mhz, |
| bool safe_to_lower) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| uint32_t prog_wm_value; |
| bool wm_pending = false; |
| |
| /* Repeat for water mark set A, B, C and D. */ |
| /* clock state A */ |
| if (safe_to_lower || watermarks->a.urgent_ns > hubbub1->watermarks.a.urgent_ns) { |
| hubbub1->watermarks.a.urgent_ns = watermarks->a.urgent_ns; |
| prog_wm_value = convert_and_clamp(watermarks->a.urgent_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, 0, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_URGENCY_WATERMARK_A, prog_wm_value); |
| |
| DC_LOG_BANDWIDTH_CALCS("URGENCY_WATERMARK_A calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->a.urgent_ns, prog_wm_value); |
| } else if (watermarks->a.urgent_ns < hubbub1->watermarks.a.urgent_ns) |
| wm_pending = true; |
| |
| /* determine the transfer time for a quantity of data for a particular requestor.*/ |
| if (safe_to_lower || watermarks->a.frac_urg_bw_flip |
| > hubbub1->watermarks.a.frac_urg_bw_flip) { |
| hubbub1->watermarks.a.frac_urg_bw_flip = watermarks->a.frac_urg_bw_flip; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_FLIP_A, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_FLIP_A, watermarks->a.frac_urg_bw_flip); |
| } else if (watermarks->a.frac_urg_bw_flip |
| < hubbub1->watermarks.a.frac_urg_bw_flip) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->a.frac_urg_bw_nom |
| > hubbub1->watermarks.a.frac_urg_bw_nom) { |
| hubbub1->watermarks.a.frac_urg_bw_nom = watermarks->a.frac_urg_bw_nom; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_NOM_A, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_NOM_A, watermarks->a.frac_urg_bw_nom); |
| } else if (watermarks->a.frac_urg_bw_nom |
| < hubbub1->watermarks.a.frac_urg_bw_nom) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->a.urgent_latency_ns > hubbub1->watermarks.a.urgent_latency_ns) { |
| hubbub1->watermarks.a.urgent_latency_ns = watermarks->a.urgent_latency_ns; |
| prog_wm_value = convert_and_clamp(watermarks->a.urgent_latency_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_A, 0, |
| DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_A, prog_wm_value); |
| } else if (watermarks->a.urgent_latency_ns < hubbub1->watermarks.a.urgent_latency_ns) |
| wm_pending = true; |
| |
| /* clock state B */ |
| if (safe_to_lower || watermarks->b.urgent_ns > hubbub1->watermarks.b.urgent_ns) { |
| hubbub1->watermarks.b.urgent_ns = watermarks->b.urgent_ns; |
| prog_wm_value = convert_and_clamp(watermarks->b.urgent_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, 0, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_URGENCY_WATERMARK_B, prog_wm_value); |
| |
| DC_LOG_BANDWIDTH_CALCS("URGENCY_WATERMARK_B calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->b.urgent_ns, prog_wm_value); |
| } else if (watermarks->b.urgent_ns < hubbub1->watermarks.b.urgent_ns) |
| wm_pending = true; |
| |
| /* determine the transfer time for a quantity of data for a particular requestor.*/ |
| if (safe_to_lower || watermarks->a.frac_urg_bw_flip |
| > hubbub1->watermarks.a.frac_urg_bw_flip) { |
| hubbub1->watermarks.a.frac_urg_bw_flip = watermarks->a.frac_urg_bw_flip; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_FLIP_B, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_FLIP_B, watermarks->a.frac_urg_bw_flip); |
| } else if (watermarks->a.frac_urg_bw_flip |
| < hubbub1->watermarks.a.frac_urg_bw_flip) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->a.frac_urg_bw_nom |
| > hubbub1->watermarks.a.frac_urg_bw_nom) { |
| hubbub1->watermarks.a.frac_urg_bw_nom = watermarks->a.frac_urg_bw_nom; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_NOM_B, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_NOM_B, watermarks->a.frac_urg_bw_nom); |
| } else if (watermarks->a.frac_urg_bw_nom |
| < hubbub1->watermarks.a.frac_urg_bw_nom) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->b.urgent_latency_ns > hubbub1->watermarks.b.urgent_latency_ns) { |
| hubbub1->watermarks.b.urgent_latency_ns = watermarks->b.urgent_latency_ns; |
| prog_wm_value = convert_and_clamp(watermarks->b.urgent_latency_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_B, 0, |
| DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_B, prog_wm_value); |
| } else if (watermarks->b.urgent_latency_ns < hubbub1->watermarks.b.urgent_latency_ns) |
| wm_pending = true; |
| |
| /* clock state C */ |
| if (safe_to_lower || watermarks->c.urgent_ns > hubbub1->watermarks.c.urgent_ns) { |
| hubbub1->watermarks.c.urgent_ns = watermarks->c.urgent_ns; |
| prog_wm_value = convert_and_clamp(watermarks->c.urgent_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, 0, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_URGENCY_WATERMARK_C, prog_wm_value); |
| |
| DC_LOG_BANDWIDTH_CALCS("URGENCY_WATERMARK_C calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->c.urgent_ns, prog_wm_value); |
| } else if (watermarks->c.urgent_ns < hubbub1->watermarks.c.urgent_ns) |
| wm_pending = true; |
| |
| /* determine the transfer time for a quantity of data for a particular requestor.*/ |
| if (safe_to_lower || watermarks->a.frac_urg_bw_flip |
| > hubbub1->watermarks.a.frac_urg_bw_flip) { |
| hubbub1->watermarks.a.frac_urg_bw_flip = watermarks->a.frac_urg_bw_flip; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_FLIP_C, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_FLIP_C, watermarks->a.frac_urg_bw_flip); |
| } else if (watermarks->a.frac_urg_bw_flip |
| < hubbub1->watermarks.a.frac_urg_bw_flip) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->a.frac_urg_bw_nom |
| > hubbub1->watermarks.a.frac_urg_bw_nom) { |
| hubbub1->watermarks.a.frac_urg_bw_nom = watermarks->a.frac_urg_bw_nom; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_NOM_C, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_NOM_C, watermarks->a.frac_urg_bw_nom); |
| } else if (watermarks->a.frac_urg_bw_nom |
| < hubbub1->watermarks.a.frac_urg_bw_nom) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->c.urgent_latency_ns > hubbub1->watermarks.c.urgent_latency_ns) { |
| hubbub1->watermarks.c.urgent_latency_ns = watermarks->c.urgent_latency_ns; |
| prog_wm_value = convert_and_clamp(watermarks->c.urgent_latency_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_C, 0, |
| DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_C, prog_wm_value); |
| } else if (watermarks->c.urgent_latency_ns < hubbub1->watermarks.c.urgent_latency_ns) |
| wm_pending = true; |
| |
| /* clock state D */ |
| if (safe_to_lower || watermarks->d.urgent_ns > hubbub1->watermarks.d.urgent_ns) { |
| hubbub1->watermarks.d.urgent_ns = watermarks->d.urgent_ns; |
| prog_wm_value = convert_and_clamp(watermarks->d.urgent_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, 0, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_URGENCY_WATERMARK_D, prog_wm_value); |
| |
| DC_LOG_BANDWIDTH_CALCS("URGENCY_WATERMARK_D calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->d.urgent_ns, prog_wm_value); |
| } else if (watermarks->d.urgent_ns < hubbub1->watermarks.d.urgent_ns) |
| wm_pending = true; |
| |
| /* determine the transfer time for a quantity of data for a particular requestor.*/ |
| if (safe_to_lower || watermarks->a.frac_urg_bw_flip |
| > hubbub1->watermarks.a.frac_urg_bw_flip) { |
| hubbub1->watermarks.a.frac_urg_bw_flip = watermarks->a.frac_urg_bw_flip; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_FLIP_D, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_FLIP_D, watermarks->a.frac_urg_bw_flip); |
| } else if (watermarks->a.frac_urg_bw_flip |
| < hubbub1->watermarks.a.frac_urg_bw_flip) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->a.frac_urg_bw_nom |
| > hubbub1->watermarks.a.frac_urg_bw_nom) { |
| hubbub1->watermarks.a.frac_urg_bw_nom = watermarks->a.frac_urg_bw_nom; |
| |
| REG_SET(DCHUBBUB_ARB_FRAC_URG_BW_NOM_D, 0, |
| DCHUBBUB_ARB_FRAC_URG_BW_NOM_D, watermarks->a.frac_urg_bw_nom); |
| } else if (watermarks->a.frac_urg_bw_nom |
| < hubbub1->watermarks.a.frac_urg_bw_nom) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->d.urgent_latency_ns > hubbub1->watermarks.d.urgent_latency_ns) { |
| hubbub1->watermarks.d.urgent_latency_ns = watermarks->d.urgent_latency_ns; |
| prog_wm_value = convert_and_clamp(watermarks->d.urgent_latency_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET(DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_D, 0, |
| DCHUBBUB_ARB_REFCYC_PER_TRIP_TO_MEMORY_D, prog_wm_value); |
| } else if (watermarks->d.urgent_latency_ns < hubbub1->watermarks.d.urgent_latency_ns) |
| wm_pending = true; |
| |
| return wm_pending; |
| } |
| |
| bool hubbub21_program_stutter_watermarks( |
| struct hubbub *hubbub, |
| struct dcn_watermark_set *watermarks, |
| unsigned int refclk_mhz, |
| bool safe_to_lower) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| uint32_t prog_wm_value; |
| bool wm_pending = false; |
| |
| /* clock state A */ |
| if (safe_to_lower || watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns |
| > hubbub1->watermarks.a.cstate_pstate.cstate_enter_plus_exit_ns) { |
| hubbub1->watermarks.a.cstate_pstate.cstate_enter_plus_exit_ns = |
| watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, 0, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_ENTER_WATERMARK_A, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_A calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns, prog_wm_value); |
| } else if (watermarks->a.cstate_pstate.cstate_enter_plus_exit_ns |
| < hubbub1->watermarks.a.cstate_pstate.cstate_enter_plus_exit_ns) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->a.cstate_pstate.cstate_exit_ns |
| > hubbub1->watermarks.a.cstate_pstate.cstate_exit_ns) { |
| hubbub1->watermarks.a.cstate_pstate.cstate_exit_ns = |
| watermarks->a.cstate_pstate.cstate_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->a.cstate_pstate.cstate_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, 0, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_EXIT_WATERMARK_A, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_A calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->a.cstate_pstate.cstate_exit_ns, prog_wm_value); |
| } else if (watermarks->a.cstate_pstate.cstate_exit_ns |
| < hubbub1->watermarks.a.cstate_pstate.cstate_exit_ns) |
| wm_pending = true; |
| |
| /* clock state B */ |
| if (safe_to_lower || watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns |
| > hubbub1->watermarks.b.cstate_pstate.cstate_enter_plus_exit_ns) { |
| hubbub1->watermarks.b.cstate_pstate.cstate_enter_plus_exit_ns = |
| watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, 0, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_ENTER_WATERMARK_B, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_B calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns, prog_wm_value); |
| } else if (watermarks->b.cstate_pstate.cstate_enter_plus_exit_ns |
| < hubbub1->watermarks.b.cstate_pstate.cstate_enter_plus_exit_ns) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->b.cstate_pstate.cstate_exit_ns |
| > hubbub1->watermarks.b.cstate_pstate.cstate_exit_ns) { |
| hubbub1->watermarks.b.cstate_pstate.cstate_exit_ns = |
| watermarks->b.cstate_pstate.cstate_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->b.cstate_pstate.cstate_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, 0, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_EXIT_WATERMARK_A, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_B calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->b.cstate_pstate.cstate_exit_ns, prog_wm_value); |
| } else if (watermarks->b.cstate_pstate.cstate_exit_ns |
| < hubbub1->watermarks.b.cstate_pstate.cstate_exit_ns) |
| wm_pending = true; |
| |
| /* clock state C */ |
| if (safe_to_lower || watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns |
| > hubbub1->watermarks.c.cstate_pstate.cstate_enter_plus_exit_ns) { |
| hubbub1->watermarks.c.cstate_pstate.cstate_enter_plus_exit_ns = |
| watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, 0, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_ENTER_WATERMARK_C, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_C calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns, prog_wm_value); |
| } else if (watermarks->c.cstate_pstate.cstate_enter_plus_exit_ns |
| < hubbub1->watermarks.c.cstate_pstate.cstate_enter_plus_exit_ns) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->c.cstate_pstate.cstate_exit_ns |
| > hubbub1->watermarks.c.cstate_pstate.cstate_exit_ns) { |
| hubbub1->watermarks.c.cstate_pstate.cstate_exit_ns = |
| watermarks->c.cstate_pstate.cstate_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->c.cstate_pstate.cstate_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, 0, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_EXIT_WATERMARK_A, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_C calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->c.cstate_pstate.cstate_exit_ns, prog_wm_value); |
| } else if (watermarks->c.cstate_pstate.cstate_exit_ns |
| < hubbub1->watermarks.c.cstate_pstate.cstate_exit_ns) |
| wm_pending = true; |
| |
| /* clock state D */ |
| if (safe_to_lower || watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns |
| > hubbub1->watermarks.d.cstate_pstate.cstate_enter_plus_exit_ns) { |
| hubbub1->watermarks.d.cstate_pstate.cstate_enter_plus_exit_ns = |
| watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, 0, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_ENTER_WATERMARK_D, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_ENTER_EXIT_WATERMARK_D calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns, prog_wm_value); |
| } else if (watermarks->d.cstate_pstate.cstate_enter_plus_exit_ns |
| < hubbub1->watermarks.d.cstate_pstate.cstate_enter_plus_exit_ns) |
| wm_pending = true; |
| |
| if (safe_to_lower || watermarks->d.cstate_pstate.cstate_exit_ns |
| > hubbub1->watermarks.d.cstate_pstate.cstate_exit_ns) { |
| hubbub1->watermarks.d.cstate_pstate.cstate_exit_ns = |
| watermarks->d.cstate_pstate.cstate_exit_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->d.cstate_pstate.cstate_exit_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, 0, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_SR_EXIT_WATERMARK_A, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("SR_EXIT_WATERMARK_D calculated =%d\n" |
| "HW register value = 0x%x\n", |
| watermarks->d.cstate_pstate.cstate_exit_ns, prog_wm_value); |
| } else if (watermarks->d.cstate_pstate.cstate_exit_ns |
| < hubbub1->watermarks.d.cstate_pstate.cstate_exit_ns) |
| wm_pending = true; |
| |
| return wm_pending; |
| } |
| |
| bool hubbub21_program_pstate_watermarks( |
| struct hubbub *hubbub, |
| struct dcn_watermark_set *watermarks, |
| unsigned int refclk_mhz, |
| bool safe_to_lower) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| uint32_t prog_wm_value; |
| |
| bool wm_pending = false; |
| |
| /* clock state A */ |
| if (safe_to_lower || watermarks->a.cstate_pstate.pstate_change_ns |
| > hubbub1->watermarks.a.cstate_pstate.pstate_change_ns) { |
| hubbub1->watermarks.a.cstate_pstate.pstate_change_ns = |
| watermarks->a.cstate_pstate.pstate_change_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->a.cstate_pstate.pstate_change_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, 0, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_A calculated =%d\n" |
| "HW register value = 0x%x\n\n", |
| watermarks->a.cstate_pstate.pstate_change_ns, prog_wm_value); |
| } else if (watermarks->a.cstate_pstate.pstate_change_ns |
| < hubbub1->watermarks.a.cstate_pstate.pstate_change_ns) |
| wm_pending = true; |
| |
| /* clock state B */ |
| if (safe_to_lower || watermarks->b.cstate_pstate.pstate_change_ns |
| > hubbub1->watermarks.b.cstate_pstate.pstate_change_ns) { |
| hubbub1->watermarks.b.cstate_pstate.pstate_change_ns = |
| watermarks->b.cstate_pstate.pstate_change_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->b.cstate_pstate.pstate_change_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, 0, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_B calculated =%d\n" |
| "HW register value = 0x%x\n\n", |
| watermarks->b.cstate_pstate.pstate_change_ns, prog_wm_value); |
| } else if (watermarks->b.cstate_pstate.pstate_change_ns |
| < hubbub1->watermarks.b.cstate_pstate.pstate_change_ns) |
| wm_pending = false; |
| |
| /* clock state C */ |
| if (safe_to_lower || watermarks->c.cstate_pstate.pstate_change_ns |
| > hubbub1->watermarks.c.cstate_pstate.pstate_change_ns) { |
| hubbub1->watermarks.c.cstate_pstate.pstate_change_ns = |
| watermarks->c.cstate_pstate.pstate_change_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->c.cstate_pstate.pstate_change_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, 0, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_C calculated =%d\n" |
| "HW register value = 0x%x\n\n", |
| watermarks->c.cstate_pstate.pstate_change_ns, prog_wm_value); |
| } else if (watermarks->c.cstate_pstate.pstate_change_ns |
| < hubbub1->watermarks.c.cstate_pstate.pstate_change_ns) |
| wm_pending = true; |
| |
| /* clock state D */ |
| if (safe_to_lower || watermarks->d.cstate_pstate.pstate_change_ns |
| > hubbub1->watermarks.d.cstate_pstate.pstate_change_ns) { |
| hubbub1->watermarks.d.cstate_pstate.pstate_change_ns = |
| watermarks->d.cstate_pstate.pstate_change_ns; |
| prog_wm_value = convert_and_clamp( |
| watermarks->d.cstate_pstate.pstate_change_ns, |
| refclk_mhz, 0x1fffff); |
| REG_SET_2(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, 0, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, prog_wm_value, |
| DCHUBBUB_ARB_VM_ROW_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, prog_wm_value); |
| DC_LOG_BANDWIDTH_CALCS("DRAM_CLK_CHANGE_WATERMARK_D calculated =%d\n" |
| "HW register value = 0x%x\n\n", |
| watermarks->d.cstate_pstate.pstate_change_ns, prog_wm_value); |
| } else if (watermarks->d.cstate_pstate.pstate_change_ns |
| < hubbub1->watermarks.d.cstate_pstate.pstate_change_ns) |
| wm_pending = true; |
| |
| return wm_pending; |
| } |
| |
| bool hubbub21_program_watermarks( |
| struct hubbub *hubbub, |
| struct dcn_watermark_set *watermarks, |
| unsigned int refclk_mhz, |
| bool safe_to_lower) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| bool wm_pending = false; |
| |
| if (hubbub21_program_urgent_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) |
| wm_pending = true; |
| |
| if (hubbub21_program_stutter_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) |
| wm_pending = true; |
| |
| if (hubbub21_program_pstate_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) |
| wm_pending = true; |
| |
| /* |
| * The DCHub arbiter has a mechanism to dynamically rate limit the DCHub request stream to the fabric. |
| * If the memory controller is fully utilized and the DCHub requestors are |
| * well ahead of their amortized schedule, then it is safe to prevent the next winner |
| * from being committed and sent to the fabric. |
| * The utilization of the memory controller is approximated by ensuring that |
| * the number of outstanding requests is greater than a threshold specified |
| * by the ARB_MIN_REQ_OUTSTANDING. To determine that the DCHub requestors are well ahead of the amortized schedule, |
| * the slack of the next winner is compared with the ARB_SAT_LEVEL in DLG RefClk cycles. |
| * |
| * TODO: Revisit request limit after figure out right number. request limit for Renoir isn't decided yet, set maximum value (0x1FF) |
| * to turn off it for now. |
| */ |
| REG_SET(DCHUBBUB_ARB_SAT_LEVEL, 0, |
| DCHUBBUB_ARB_SAT_LEVEL, 60 * refclk_mhz); |
| REG_UPDATE_2(DCHUBBUB_ARB_DF_REQ_OUTSTAND, |
| DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 0x1FF, |
| DCHUBBUB_ARB_MIN_REQ_OUTSTAND_COMMIT_THRESHOLD, 0xA); |
| REG_UPDATE(DCHUBBUB_ARB_HOSTVM_CNTL, |
| DCHUBBUB_ARB_MAX_QOS_COMMIT_THRESHOLD, 0xF); |
| |
| hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); |
| |
| return wm_pending; |
| } |
| |
| void hubbub21_wm_read_state(struct hubbub *hubbub, |
| struct dcn_hubbub_wm *wm) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| struct dcn_hubbub_wm_set *s; |
| |
| memset(wm, 0, sizeof(struct dcn_hubbub_wm)); |
| |
| s = &wm->sets[0]; |
| s->wm_set = 0; |
| REG_GET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, &s->data_urgent); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, &s->sr_enter); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, &s->sr_exit); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, &s->dram_clk_chanage); |
| |
| s = &wm->sets[1]; |
| s->wm_set = 1; |
| REG_GET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, &s->data_urgent); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, &s->sr_enter); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, &s->sr_exit); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, &s->dram_clk_chanage); |
| |
| s = &wm->sets[2]; |
| s->wm_set = 2; |
| REG_GET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, &s->data_urgent); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, &s->sr_enter); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, &s->sr_exit); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, &s->dram_clk_chanage); |
| |
| s = &wm->sets[3]; |
| s->wm_set = 3; |
| REG_GET(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, |
| DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, &s->data_urgent); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, |
| DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, &s->sr_enter); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, |
| DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, &s->sr_exit); |
| |
| REG_GET(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, |
| DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, &s->dram_clk_chanage); |
| } |
| |
| static void hubbub21_apply_DEDCN21_147_wa(struct hubbub *hubbub) |
| { |
| struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); |
| uint32_t prog_wm_value; |
| |
| prog_wm_value = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A); |
| REG_WRITE(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, prog_wm_value); |
| } |
| |
| static const struct hubbub_funcs hubbub21_funcs = { |
| .update_dchub = hubbub2_update_dchub, |
| .init_dchub_sys_ctx = hubbub21_init_dchub, |
| .init_vm_ctx = hubbub2_init_vm_ctx, |
| .dcc_support_swizzle = hubbub2_dcc_support_swizzle, |
| .dcc_support_pixel_format = hubbub2_dcc_support_pixel_format, |
| .get_dcc_compression_cap = hubbub2_get_dcc_compression_cap, |
| .wm_read_state = hubbub21_wm_read_state, |
| .get_dchub_ref_freq = hubbub2_get_dchub_ref_freq, |
| .program_watermarks = hubbub21_program_watermarks, |
| .allow_self_refresh_control = hubbub1_allow_self_refresh_control, |
| .apply_DEDCN21_147_wa = hubbub21_apply_DEDCN21_147_wa, |
| .hubbub_read_state = hubbub2_read_state, |
| }; |
| |
| void hubbub21_construct(struct dcn20_hubbub *hubbub, |
| struct dc_context *ctx, |
| const struct dcn_hubbub_registers *hubbub_regs, |
| const struct dcn_hubbub_shift *hubbub_shift, |
| const struct dcn_hubbub_mask *hubbub_mask) |
| { |
| hubbub->base.ctx = ctx; |
| |
| hubbub->base.funcs = &hubbub21_funcs; |
| |
| hubbub->regs = hubbub_regs; |
| hubbub->shifts = hubbub_shift; |
| hubbub->masks = hubbub_mask; |
| |
| hubbub->debug_test_index_pstate = 0xB; |
| hubbub->detile_buf_size = 164 * 1024; /* 164KB for DCN2.0 */ |
| } |
