diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c | 964 |
1 files changed, 964 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c new file mode 100644 index 000000000..d51f1ce02 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c @@ -0,0 +1,964 @@ +/* + * Copyright 2016 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 "dcn10_hubp.h" +#include "dcn10_hubbub.h" +#include "reg_helper.h" + +#define CTX \ + hubbub1->base.ctx +#define DC_LOGGER \ + hubbub1->base.ctx->logger +#define REG(reg)\ + hubbub1->regs->reg + +#undef FN +#define FN(reg_name, field_name) \ + hubbub1->shifts->field_name, hubbub1->masks->field_name + +void hubbub1_wm_read_state(struct hubbub *hubbub, + struct dcn_hubbub_wm *wm) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + struct dcn_hubbub_wm_set *s; + + memset(wm, 0, sizeof(struct dcn_hubbub_wm)); + + s = &wm->sets[0]; + s->wm_set = 0; + s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A); + s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_A); + if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A)) { + s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A); + s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A); + } + s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A); + + s = &wm->sets[1]; + s->wm_set = 1; + s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B); + s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_B); + if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B)) { + s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B); + s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B); + } + s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B); + + s = &wm->sets[2]; + s->wm_set = 2; + s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C); + s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_C); + if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C)) { + s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C); + s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C); + } + s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C); + + s = &wm->sets[3]; + s->wm_set = 3; + s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D); + s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_D); + if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D)) { + s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D); + s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D); + } + s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D); +} + +void hubbub1_allow_self_refresh_control(struct hubbub *hubbub, bool allow) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + /* + * DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE = 1 means do not allow stutter + * DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE = 0 means allow stutter + */ + + REG_UPDATE_2(DCHUBBUB_ARB_DRAM_STATE_CNTL, + DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_VALUE, 0, + DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE, !allow); +} + +bool hubbub1_is_allow_self_refresh_enabled(struct hubbub *hubbub) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + uint32_t enable = 0; + + REG_GET(DCHUBBUB_ARB_DRAM_STATE_CNTL, + DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE, &enable); + + return enable ? true : false; +} + + +bool hubbub1_verify_allow_pstate_change_high( + struct hubbub *hubbub) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + + /* pstate latency is ~20us so if we wait over 40us and pstate allow + * still not asserted, we are probably stuck and going to hang + * + * TODO: Figure out why it takes ~100us on linux + * pstate takes around ~100us (up to 200us) on linux. Unknown currently + * as to why it takes that long on linux + */ + const unsigned int pstate_wait_timeout_us = 200; + const unsigned int pstate_wait_expected_timeout_us = 180; + static unsigned int max_sampled_pstate_wait_us; /* data collection */ + static bool forced_pstate_allow; /* help with revert wa */ + + unsigned int debug_data; + unsigned int i; + + if (forced_pstate_allow) { + /* we hacked to force pstate allow to prevent hang last time + * we verify_allow_pstate_change_high. so disable force + * here so we can check status + */ + REG_UPDATE_2(DCHUBBUB_ARB_DRAM_STATE_CNTL, + DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_VALUE, 0, + DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_ENABLE, 0); + forced_pstate_allow = false; + } + + /* The following table only applies to DCN1 and DCN2, + * for newer DCNs, need to consult with HW IP folks to read RTL + * HUBBUB:DCHUBBUB_TEST_ARB_DEBUG10 DCHUBBUBDEBUGIND:0xB + * description + * 0: Pipe0 Plane0 Allow Pstate Change + * 1: Pipe0 Plane1 Allow Pstate Change + * 2: Pipe0 Cursor0 Allow Pstate Change + * 3: Pipe0 Cursor1 Allow Pstate Change + * 4: Pipe1 Plane0 Allow Pstate Change + * 5: Pipe1 Plane1 Allow Pstate Change + * 6: Pipe1 Cursor0 Allow Pstate Change + * 7: Pipe1 Cursor1 Allow Pstate Change + * 8: Pipe2 Plane0 Allow Pstate Change + * 9: Pipe2 Plane1 Allow Pstate Change + * 10: Pipe2 Cursor0 Allow Pstate Change + * 11: Pipe2 Cursor1 Allow Pstate Change + * 12: Pipe3 Plane0 Allow Pstate Change + * 13: Pipe3 Plane1 Allow Pstate Change + * 14: Pipe3 Cursor0 Allow Pstate Change + * 15: Pipe3 Cursor1 Allow Pstate Change + * 16: Pipe4 Plane0 Allow Pstate Change + * 17: Pipe4 Plane1 Allow Pstate Change + * 18: Pipe4 Cursor0 Allow Pstate Change + * 19: Pipe4 Cursor1 Allow Pstate Change + * 20: Pipe5 Plane0 Allow Pstate Change + * 21: Pipe5 Plane1 Allow Pstate Change + * 22: Pipe5 Cursor0 Allow Pstate Change + * 23: Pipe5 Cursor1 Allow Pstate Change + * 24: Pipe6 Plane0 Allow Pstate Change + * 25: Pipe6 Plane1 Allow Pstate Change + * 26: Pipe6 Cursor0 Allow Pstate Change + * 27: Pipe6 Cursor1 Allow Pstate Change + * 28: WB0 Allow Pstate Change + * 29: WB1 Allow Pstate Change + * 30: Arbiter's allow_pstate_change + * 31: SOC pstate change request + */ + + REG_WRITE(DCHUBBUB_TEST_DEBUG_INDEX, hubbub1->debug_test_index_pstate); + + for (i = 0; i < pstate_wait_timeout_us; i++) { + debug_data = REG_READ(DCHUBBUB_TEST_DEBUG_DATA); + + if (debug_data & (1 << 30)) { + + if (i > pstate_wait_expected_timeout_us) + DC_LOG_WARNING("pstate took longer than expected ~%dus\n", + i); + + return true; + } + if (max_sampled_pstate_wait_us < i) + max_sampled_pstate_wait_us = i; + + udelay(1); + } + + /* force pstate allow to prevent system hang + * and break to debugger to investigate + */ + REG_UPDATE_2(DCHUBBUB_ARB_DRAM_STATE_CNTL, + DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_VALUE, 1, + DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_ENABLE, 1); + forced_pstate_allow = true; + + DC_LOG_WARNING("pstate TEST_DEBUG_DATA: 0x%X\n", + debug_data); + + return false; +} + +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 hubbub1_wm_change_req_wa(struct hubbub *hubbub) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + + REG_UPDATE_SEQ_2(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, + DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, 0, + DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, 1); +} + +bool hubbub1_program_urgent_watermarks( + struct hubbub *hubbub, + struct dcn_watermark_set *watermarks, + unsigned int refclk_mhz, + bool safe_to_lower) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_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(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A, 0, + DCHUBBUB_ARB_DATA_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; + + if (safe_to_lower || watermarks->a.pte_meta_urgent_ns > hubbub1->watermarks.a.pte_meta_urgent_ns) { + hubbub1->watermarks.a.pte_meta_urgent_ns = watermarks->a.pte_meta_urgent_ns; + prog_wm_value = convert_and_clamp(watermarks->a.pte_meta_urgent_ns, + refclk_mhz, 0x1fffff); + REG_WRITE(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_A, prog_wm_value); + DC_LOG_BANDWIDTH_CALCS("PTE_META_URGENCY_WATERMARK_A calculated =%d\n" + "HW register value = 0x%x\n", + watermarks->a.pte_meta_urgent_ns, prog_wm_value); + } else if (watermarks->a.pte_meta_urgent_ns < hubbub1->watermarks.a.pte_meta_urgent_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(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B, 0, + DCHUBBUB_ARB_DATA_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; + + if (safe_to_lower || watermarks->b.pte_meta_urgent_ns > hubbub1->watermarks.b.pte_meta_urgent_ns) { + hubbub1->watermarks.b.pte_meta_urgent_ns = watermarks->b.pte_meta_urgent_ns; + prog_wm_value = convert_and_clamp(watermarks->b.pte_meta_urgent_ns, + refclk_mhz, 0x1fffff); + REG_WRITE(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_B, prog_wm_value); + DC_LOG_BANDWIDTH_CALCS("PTE_META_URGENCY_WATERMARK_B calculated =%d\n" + "HW register value = 0x%x\n", + watermarks->b.pte_meta_urgent_ns, prog_wm_value); + } else if (watermarks->b.pte_meta_urgent_ns < hubbub1->watermarks.b.pte_meta_urgent_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(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C, 0, + DCHUBBUB_ARB_DATA_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; + + if (safe_to_lower || watermarks->c.pte_meta_urgent_ns > hubbub1->watermarks.c.pte_meta_urgent_ns) { + hubbub1->watermarks.c.pte_meta_urgent_ns = watermarks->c.pte_meta_urgent_ns; + prog_wm_value = convert_and_clamp(watermarks->c.pte_meta_urgent_ns, + refclk_mhz, 0x1fffff); + REG_WRITE(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_C, prog_wm_value); + DC_LOG_BANDWIDTH_CALCS("PTE_META_URGENCY_WATERMARK_C calculated =%d\n" + "HW register value = 0x%x\n", + watermarks->c.pte_meta_urgent_ns, prog_wm_value); + } else if (watermarks->c.pte_meta_urgent_ns < hubbub1->watermarks.c.pte_meta_urgent_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(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D, 0, + DCHUBBUB_ARB_DATA_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; + + if (safe_to_lower || watermarks->d.pte_meta_urgent_ns > hubbub1->watermarks.d.pte_meta_urgent_ns) { + hubbub1->watermarks.d.pte_meta_urgent_ns = watermarks->d.pte_meta_urgent_ns; + prog_wm_value = convert_and_clamp(watermarks->d.pte_meta_urgent_ns, + refclk_mhz, 0x1fffff); + REG_WRITE(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_D, prog_wm_value); + DC_LOG_BANDWIDTH_CALCS("PTE_META_URGENCY_WATERMARK_D calculated =%d\n" + "HW register value = 0x%x\n", + watermarks->d.pte_meta_urgent_ns, prog_wm_value); + } else if (watermarks->d.pte_meta_urgent_ns < hubbub1->watermarks.d.pte_meta_urgent_ns) + wm_pending = true; + + return wm_pending; +} + +bool hubbub1_program_stutter_watermarks( + struct hubbub *hubbub, + struct dcn_watermark_set *watermarks, + unsigned int refclk_mhz, + bool safe_to_lower) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_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(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, 0, + DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B, 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(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, 0, + DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C, 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(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, 0, + DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D, 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 hubbub1_program_pstate_watermarks( + struct hubbub *hubbub, + struct dcn_watermark_set *watermarks, + unsigned int refclk_mhz, + bool safe_to_lower) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_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(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B, 0, + DCHUBBUB_ARB_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 = true; + + /* 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(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C, 0, + DCHUBBUB_ARB_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(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D, 0, + DCHUBBUB_ARB_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 hubbub1_program_watermarks( + struct hubbub *hubbub, + struct dcn_watermark_set *watermarks, + unsigned int refclk_mhz, + bool safe_to_lower) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + bool wm_pending = false; + /* + * Need to clamp to max of the register values (i.e. no wrap) + * for dcn1, all wm registers are 21-bit wide + */ + if (hubbub1_program_urgent_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) + wm_pending = true; + + if (hubbub1_program_stutter_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) + wm_pending = true; + + if (hubbub1_program_pstate_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) + wm_pending = true; + + REG_UPDATE(DCHUBBUB_ARB_SAT_LEVEL, + DCHUBBUB_ARB_SAT_LEVEL, 60 * refclk_mhz); + REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND, + DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 68); + + hubbub1_allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); + +#if 0 + REG_UPDATE_2(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, + DCHUBBUB_ARB_WATERMARK_CHANGE_DONE_INTERRUPT_DISABLE, 1, + DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, 1); +#endif + return wm_pending; +} + +void hubbub1_update_dchub( + struct hubbub *hubbub, + struct dchub_init_data *dh_data) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + + if (REG(DCHUBBUB_SDPIF_FB_TOP) == 0) { + ASSERT(false); + /*should not come here*/ + return; + } + /* TODO: port code from dal2 */ + switch (dh_data->fb_mode) { + case FRAME_BUFFER_MODE_ZFB_ONLY: + /*For ZFB case need to put DCHUB FB BASE and TOP upside down to indicate ZFB mode*/ + REG_UPDATE(DCHUBBUB_SDPIF_FB_TOP, + SDPIF_FB_TOP, 0); + + REG_UPDATE(DCHUBBUB_SDPIF_FB_BASE, + SDPIF_FB_BASE, 0x0FFFF); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_BASE, + SDPIF_AGP_BASE, dh_data->zfb_phys_addr_base >> 22); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_BOT, + SDPIF_AGP_BOT, dh_data->zfb_mc_base_addr >> 22); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_TOP, + SDPIF_AGP_TOP, (dh_data->zfb_mc_base_addr + + dh_data->zfb_size_in_byte - 1) >> 22); + break; + case FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL: + /*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/ + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_BASE, + SDPIF_AGP_BASE, dh_data->zfb_phys_addr_base >> 22); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_BOT, + SDPIF_AGP_BOT, dh_data->zfb_mc_base_addr >> 22); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_TOP, + SDPIF_AGP_TOP, (dh_data->zfb_mc_base_addr + + dh_data->zfb_size_in_byte - 1) >> 22); + break; + case FRAME_BUFFER_MODE_LOCAL_ONLY: + /*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/ + REG_UPDATE(DCHUBBUB_SDPIF_AGP_BASE, + SDPIF_AGP_BASE, 0); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_BOT, + SDPIF_AGP_BOT, 0X03FFFF); + + REG_UPDATE(DCHUBBUB_SDPIF_AGP_TOP, + SDPIF_AGP_TOP, 0); + break; + default: + break; + } + + dh_data->dchub_initialzied = true; + dh_data->dchub_info_valid = false; +} + +void hubbub1_toggle_watermark_change_req(struct hubbub *hubbub) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + + uint32_t watermark_change_req; + + REG_GET(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, + DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, &watermark_change_req); + + if (watermark_change_req) + watermark_change_req = 0; + else + watermark_change_req = 1; + + REG_UPDATE(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, + DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, watermark_change_req); +} + +void hubbub1_soft_reset(struct hubbub *hubbub, bool reset) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + + uint32_t reset_en = reset ? 1 : 0; + + REG_UPDATE(DCHUBBUB_SOFT_RESET, + DCHUBBUB_GLOBAL_SOFT_RESET, reset_en); +} + +static bool hubbub1_dcc_support_swizzle( + enum swizzle_mode_values swizzle, + unsigned int bytes_per_element, + enum segment_order *segment_order_horz, + enum segment_order *segment_order_vert) +{ + bool standard_swizzle = false; + bool display_swizzle = false; + + switch (swizzle) { + case DC_SW_4KB_S: + case DC_SW_64KB_S: + case DC_SW_VAR_S: + case DC_SW_4KB_S_X: + case DC_SW_64KB_S_X: + case DC_SW_VAR_S_X: + standard_swizzle = true; + break; + case DC_SW_4KB_D: + case DC_SW_64KB_D: + case DC_SW_VAR_D: + case DC_SW_4KB_D_X: + case DC_SW_64KB_D_X: + case DC_SW_VAR_D_X: + display_swizzle = true; + break; + default: + break; + } + + if (bytes_per_element == 1 && standard_swizzle) { + *segment_order_horz = segment_order__contiguous; + *segment_order_vert = segment_order__na; + return true; + } + if (bytes_per_element == 2 && standard_swizzle) { + *segment_order_horz = segment_order__non_contiguous; + *segment_order_vert = segment_order__contiguous; + return true; + } + if (bytes_per_element == 4 && standard_swizzle) { + *segment_order_horz = segment_order__non_contiguous; + *segment_order_vert = segment_order__contiguous; + return true; + } + if (bytes_per_element == 8 && standard_swizzle) { + *segment_order_horz = segment_order__na; + *segment_order_vert = segment_order__contiguous; + return true; + } + if (bytes_per_element == 8 && display_swizzle) { + *segment_order_horz = segment_order__contiguous; + *segment_order_vert = segment_order__non_contiguous; + return true; + } + + return false; +} + +static bool hubbub1_dcc_support_pixel_format( + enum surface_pixel_format format, + unsigned int *bytes_per_element) +{ + /* DML: get_bytes_per_element */ + switch (format) { + case SURFACE_PIXEL_FORMAT_GRPH_ARGB1555: + case SURFACE_PIXEL_FORMAT_GRPH_RGB565: + *bytes_per_element = 2; + return true; + case SURFACE_PIXEL_FORMAT_GRPH_ARGB8888: + case SURFACE_PIXEL_FORMAT_GRPH_ABGR8888: + case SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010: + case SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010: + *bytes_per_element = 4; + return true; + case SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616: + case SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616: + case SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F: + case SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F: + *bytes_per_element = 8; + return true; + default: + return false; + } +} + +static void hubbub1_get_blk256_size(unsigned int *blk256_width, unsigned int *blk256_height, + unsigned int bytes_per_element) +{ + /* copied from DML. might want to refactor DML to leverage from DML */ + /* DML : get_blk256_size */ + if (bytes_per_element == 1) { + *blk256_width = 16; + *blk256_height = 16; + } else if (bytes_per_element == 2) { + *blk256_width = 16; + *blk256_height = 8; + } else if (bytes_per_element == 4) { + *blk256_width = 8; + *blk256_height = 8; + } else if (bytes_per_element == 8) { + *blk256_width = 8; + *blk256_height = 4; + } +} + +static void hubbub1_det_request_size( + unsigned int height, + unsigned int width, + unsigned int bpe, + bool *req128_horz_wc, + bool *req128_vert_wc) +{ + unsigned int detile_buf_size = 164 * 1024; /* 164KB for DCN1.0 */ + + unsigned int blk256_height = 0; + unsigned int blk256_width = 0; + unsigned int swath_bytes_horz_wc, swath_bytes_vert_wc; + + hubbub1_get_blk256_size(&blk256_width, &blk256_height, bpe); + + swath_bytes_horz_wc = width * blk256_height * bpe; + swath_bytes_vert_wc = height * blk256_width * bpe; + + *req128_horz_wc = (2 * swath_bytes_horz_wc <= detile_buf_size) ? + false : /* full 256B request */ + true; /* half 128b request */ + + *req128_vert_wc = (2 * swath_bytes_vert_wc <= detile_buf_size) ? + false : /* full 256B request */ + true; /* half 128b request */ +} + +static bool hubbub1_get_dcc_compression_cap(struct hubbub *hubbub, + const struct dc_dcc_surface_param *input, + struct dc_surface_dcc_cap *output) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + struct dc *dc = hubbub1->base.ctx->dc; + + /* implement section 1.6.2.1 of DCN1_Programming_Guide.docx */ + enum dcc_control dcc_control; + unsigned int bpe; + enum segment_order segment_order_horz, segment_order_vert; + bool req128_horz_wc, req128_vert_wc; + + memset(output, 0, sizeof(*output)); + + if (dc->debug.disable_dcc == DCC_DISABLE) + return false; + + if (!hubbub1->base.funcs->dcc_support_pixel_format(input->format, &bpe)) + return false; + + if (!hubbub1->base.funcs->dcc_support_swizzle(input->swizzle_mode, bpe, + &segment_order_horz, &segment_order_vert)) + return false; + + hubbub1_det_request_size(input->surface_size.height, input->surface_size.width, + bpe, &req128_horz_wc, &req128_vert_wc); + + if (!req128_horz_wc && !req128_vert_wc) { + dcc_control = dcc_control__256_256_xxx; + } else if (input->scan == SCAN_DIRECTION_HORIZONTAL) { + if (!req128_horz_wc) + dcc_control = dcc_control__256_256_xxx; + else if (segment_order_horz == segment_order__contiguous) + dcc_control = dcc_control__128_128_xxx; + else + dcc_control = dcc_control__256_64_64; + } else if (input->scan == SCAN_DIRECTION_VERTICAL) { + if (!req128_vert_wc) + dcc_control = dcc_control__256_256_xxx; + else if (segment_order_vert == segment_order__contiguous) + dcc_control = dcc_control__128_128_xxx; + else + dcc_control = dcc_control__256_64_64; + } else { + if ((req128_horz_wc && + segment_order_horz == segment_order__non_contiguous) || + (req128_vert_wc && + segment_order_vert == segment_order__non_contiguous)) + /* access_dir not known, must use most constraining */ + dcc_control = dcc_control__256_64_64; + else + /* reg128 is true for either horz and vert + * but segment_order is contiguous + */ + dcc_control = dcc_control__128_128_xxx; + } + + if (dc->debug.disable_dcc == DCC_HALF_REQ_DISALBE && + dcc_control != dcc_control__256_256_xxx) + return false; + + switch (dcc_control) { + case dcc_control__256_256_xxx: + output->grph.rgb.max_uncompressed_blk_size = 256; + output->grph.rgb.max_compressed_blk_size = 256; + output->grph.rgb.independent_64b_blks = false; + break; + case dcc_control__128_128_xxx: + output->grph.rgb.max_uncompressed_blk_size = 128; + output->grph.rgb.max_compressed_blk_size = 128; + output->grph.rgb.independent_64b_blks = false; + break; + case dcc_control__256_64_64: + output->grph.rgb.max_uncompressed_blk_size = 256; + output->grph.rgb.max_compressed_blk_size = 64; + output->grph.rgb.independent_64b_blks = true; + break; + default: + ASSERT(false); + break; + } + + output->capable = true; + output->const_color_support = false; + + return true; +} + +static const struct hubbub_funcs hubbub1_funcs = { + .update_dchub = hubbub1_update_dchub, + .dcc_support_swizzle = hubbub1_dcc_support_swizzle, + .dcc_support_pixel_format = hubbub1_dcc_support_pixel_format, + .get_dcc_compression_cap = hubbub1_get_dcc_compression_cap, + .wm_read_state = hubbub1_wm_read_state, + .program_watermarks = hubbub1_program_watermarks, + .is_allow_self_refresh_enabled = hubbub1_is_allow_self_refresh_enabled, + .allow_self_refresh_control = hubbub1_allow_self_refresh_control, + .verify_allow_pstate_change_high = hubbub1_verify_allow_pstate_change_high, +}; + +void hubbub1_construct(struct 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) +{ + struct dcn10_hubbub *hubbub1 = TO_DCN10_HUBBUB(hubbub); + + hubbub1->base.ctx = ctx; + + hubbub1->base.funcs = &hubbub1_funcs; + + hubbub1->regs = hubbub_regs; + hubbub1->shifts = hubbub_shift; + hubbub1->masks = hubbub_mask; + + hubbub1->debug_test_index_pstate = 0x7; + if (ctx->dce_version == DCN_VERSION_1_01) + hubbub1->debug_test_index_pstate = 0xB; +} + |