diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c | 595 |
1 files changed, 595 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c new file mode 100644 index 000000000000..d1266741763b --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubbub.c @@ -0,0 +1,595 @@ +/* +* 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 "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 + +#ifdef NUM_VMID +#undef NUM_VMID +#endif +#define NUM_VMID 1 + +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); + + //Init DCHVM block + REG_UPDATE(DCHVM_CTRL0, HOSTVM_INIT_REQ, 1); + + //Poll until RIOMMU_ACTIVE = 1 + //TODO: Figure out interval us and retry count + REG_WAIT(DCHVM_RIOMMU_STAT0, RIOMMU_ACTIVE, 1, 5, 100); + + //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 + //TODO: Figure out interval us and retry count + REG_WAIT(DCHVM_RIOMMU_STAT0, HOSTVM_PREFETCH_DONE, 1, 5, 100); +} + +static int hubbub21_init_dchub(struct hubbub *hubbub, + struct dcn_hubbub_phys_addr_config *pa_config) +{ + struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); + + REG_SET(DCN_VM_FB_LOCATION_BASE, 0, + FB_BASE, pa_config->system_aperture.fb_base); + REG_SET(DCN_VM_FB_LOCATION_TOP, 0, + FB_TOP, pa_config->system_aperture.fb_top); + REG_SET(DCN_VM_FB_OFFSET, 0, + FB_OFFSET, pa_config->system_aperture.fb_offset); + REG_SET(DCN_VM_AGP_BOT, 0, + AGP_BOT, pa_config->system_aperture.agp_bot); + REG_SET(DCN_VM_AGP_TOP, 0, + AGP_TOP, pa_config->system_aperture.agp_top); + REG_SET(DCN_VM_AGP_BASE, 0, + AGP_BASE, pa_config->system_aperture.agp_base); + + dcn21_dchvm_init(hubbub); + + return NUM_VMID; +} + +static void 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; + + /* 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); + } + + /* 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); + } + + 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); + } + + /* 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); + } + + /* 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); + } + + 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); + } + + /* 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); + } + + /* 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); + } + + 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); + } + + /* 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); + } + + /* 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); + } + + 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); + } +} + +static void 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; + + /* 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); + } + + 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); + } + + /* 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); + } + + 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); + } + + /* 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); + } + + 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); + } + + /* 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); + } + + 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); + } +} + +static void 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; + + /* 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); + } + + /* 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); + } + + /* 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); + } + + /* 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); + } +} + +void 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); + + hubbub21_program_urgent_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); + hubbub21_program_stutter_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); + hubbub21_program_pstate_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); + + /* + * 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); +} + +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 const struct hubbub_funcs hubbub21_funcs = { + .update_dchub = hubbub2_update_dchub, + .init_dchub_sys_ctx = hubbub21_init_dchub, + .init_vm_ctx = NULL, + .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, +}; + +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; +} |