diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c | 552 |
1 files changed, 552 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c new file mode 100644 index 000000000000..6d1fbea0f6ba --- /dev/null +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c @@ -0,0 +1,552 @@ +/* + * Copyright 2022 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 "../dmub_srv.h" +#include "dc_types.h" +#include "dmub_reg.h" +#include "dmub_dcn35.h" +#include "dc/dc_types.h" + +#include "dcn/dcn_3_5_0_offset.h" +#include "dcn/dcn_3_5_0_sh_mask.h" + +#define BASE_INNER(seg) ctx->dcn_reg_offsets[seg] +#define CTX dmub +#define REGS dmub->regs_dcn35 +#define REG_OFFSET_EXP(reg_name) BASE(reg##reg_name##_BASE_IDX) + reg##reg_name + +void dmub_srv_dcn35_regs_init(struct dmub_srv *dmub, struct dc_context *ctx) { + struct dmub_srv_dcn35_regs *regs = dmub->regs_dcn35; +#define REG_STRUCT regs + +#define DMUB_SR(reg) REG_STRUCT->offset.reg = REG_OFFSET_EXP(reg); + DMUB_DCN35_REGS() + DMCUB_INTERNAL_REGS() +#undef DMUB_SR + +#define DMUB_SF(reg, field) REG_STRUCT->mask.reg##__##field = FD_MASK(reg, field); + DMUB_DCN35_FIELDS() +#undef DMUB_SF + +#define DMUB_SF(reg, field) REG_STRUCT->shift.reg##__##field = FD_SHIFT(reg, field); + DMUB_DCN35_FIELDS() +#undef DMUB_SF +#undef REG_STRUCT +} + +static void dmub_dcn35_get_fb_base_offset(struct dmub_srv *dmub, + uint64_t *fb_base, + uint64_t *fb_offset) +{ + uint32_t tmp; + + /* + if (dmub->fb_base || dmub->fb_offset) { + *fb_base = dmub->fb_base; + *fb_offset = dmub->fb_offset; + return; + } + */ + + REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp); + *fb_base = (uint64_t)tmp << 24; + + REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp); + *fb_offset = (uint64_t)tmp << 24; +} + +static inline void dmub_dcn35_translate_addr(const union dmub_addr *addr_in, + uint64_t fb_base, + uint64_t fb_offset, + union dmub_addr *addr_out) +{ + addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset; +} + +void dmub_dcn35_reset(struct dmub_srv *dmub) +{ + union dmub_gpint_data_register cmd; + const uint32_t timeout = 100; + uint32_t in_reset, is_enabled, scratch, i, pwait_mode; + + REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &in_reset); + + if (in_reset == 0) { + cmd.bits.status = 1; + cmd.bits.command_code = DMUB_GPINT__STOP_FW; + cmd.bits.param = 0; + + dmub->hw_funcs.set_gpint(dmub, cmd); + + /** + * Timeout covers both the ACK and the wait + * for remaining work to finish. + */ + + for (i = 0; i < timeout; ++i) { + if (dmub->hw_funcs.is_gpint_acked(dmub, cmd)) + break; + + udelay(1); + } + + for (i = 0; i < timeout; ++i) { + scratch = dmub->hw_funcs.get_gpint_response(dmub); + if (scratch == DMUB_GPINT__STOP_FW_RESPONSE) + break; + + udelay(1); + } + + for (i = 0; i < timeout; ++i) { + REG_GET(DMCUB_CNTL, DMCUB_PWAIT_MODE_STATUS, &pwait_mode); + if (pwait_mode & (1 << 0)) + break; + + udelay(1); + } + /* Force reset in case we timed out, DMCUB is likely hung. */ + } + + REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enabled); + + if (is_enabled) { + REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1); + REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1); + REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0); + } + + REG_WRITE(DMCUB_INBOX1_RPTR, 0); + REG_WRITE(DMCUB_INBOX1_WPTR, 0); + REG_WRITE(DMCUB_OUTBOX1_RPTR, 0); + REG_WRITE(DMCUB_OUTBOX1_WPTR, 0); + REG_WRITE(DMCUB_OUTBOX0_RPTR, 0); + REG_WRITE(DMCUB_OUTBOX0_WPTR, 0); + REG_WRITE(DMCUB_SCRATCH0, 0); + + /* Clear the GPINT command manually so we don't send anything during boot. */ + cmd.all = 0; + dmub->hw_funcs.set_gpint(dmub, cmd); +} + +void dmub_dcn35_reset_release(struct dmub_srv *dmub) +{ + REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF); + + REG_UPDATE_3(DMU_CLK_CNTL, + LONO_DISPCLK_GATE_DISABLE, 1, + LONO_SOCCLK_GATE_DISABLE, 1, + LONO_DMCUBCLK_GATE_DISABLE, 1); + + REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1); + udelay(1); + REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1); + REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 1); + udelay(1); + REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0); + REG_UPDATE(DMCUB_CNTL2, DMCUB_SOFT_RESET, 0); +} + +void dmub_dcn35_backdoor_load(struct dmub_srv *dmub, + const struct dmub_window *cw0, + const struct dmub_window *cw1) +{ + union dmub_addr offset; + uint64_t fb_base, fb_offset; + + dmub_dcn35_get_fb_base_offset(dmub, &fb_base, &fb_offset); + + dmub_dcn35_translate_addr(&cw0->offset, fb_base, fb_offset, &offset); + + REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base); + REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0, + DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top, + DMCUB_REGION3_CW0_ENABLE, 1); + + dmub_dcn35_translate_addr(&cw1->offset, fb_base, fb_offset, &offset); + + REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base); + REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0, + DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top, + DMCUB_REGION3_CW1_ENABLE, 1); + + /* TODO: Do we need to set DMCUB_MEM_UNIT_ID? */ + REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0); +} + +void dmub_dcn35_backdoor_load_zfb_mode(struct dmub_srv *dmub, + const struct dmub_window *cw0, + const struct dmub_window *cw1) +{ + union dmub_addr offset; + + REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1); + offset = cw0->offset; + REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base); + REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0, + DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top, + DMCUB_REGION3_CW0_ENABLE, 1); + offset = cw1->offset; + REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base); + REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0, + DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top, + DMCUB_REGION3_CW1_ENABLE, 1); + REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID, + 0x20); +} +void dmub_dcn35_setup_windows(struct dmub_srv *dmub, + const struct dmub_window *cw2, + const struct dmub_window *cw3, + const struct dmub_window *cw4, + const struct dmub_window *cw5, + const struct dmub_window *cw6) +{ + union dmub_addr offset; + + offset = cw3->offset; + + REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base); + REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0, + DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top, + DMCUB_REGION3_CW3_ENABLE, 1); + + offset = cw4->offset; + + REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base); + REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0, + DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top, + DMCUB_REGION3_CW4_ENABLE, 1); + + offset = cw5->offset; + + REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base); + REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0, + DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top, + DMCUB_REGION3_CW5_ENABLE, 1); + + REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part); + REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0, + DMCUB_REGION5_TOP_ADDRESS, + cw5->region.top - cw5->region.base - 1, + DMCUB_REGION5_ENABLE, 1); + + offset = cw6->offset; + + REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base); + REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0, + DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top, + DMCUB_REGION3_CW6_ENABLE, 1); +} + +void dmub_dcn35_setup_mailbox(struct dmub_srv *dmub, + const struct dmub_region *inbox1) +{ + REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base); + REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base); +} + +uint32_t dmub_dcn35_get_inbox1_wptr(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_INBOX1_WPTR); +} + +uint32_t dmub_dcn35_get_inbox1_rptr(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_INBOX1_RPTR); +} + +void dmub_dcn35_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset) +{ + REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset); +} + +void dmub_dcn35_setup_out_mailbox(struct dmub_srv *dmub, + const struct dmub_region *outbox1) +{ + REG_WRITE(DMCUB_OUTBOX1_BASE_ADDRESS, outbox1->base); + REG_WRITE(DMCUB_OUTBOX1_SIZE, outbox1->top - outbox1->base); +} + +uint32_t dmub_dcn35_get_outbox1_wptr(struct dmub_srv *dmub) +{ + /** + * outbox1 wptr register is accessed without locks (dal & dc) + * and to be called only by dmub_srv_stat_get_notification() + */ + return REG_READ(DMCUB_OUTBOX1_WPTR); +} + +void dmub_dcn35_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset) +{ + /** + * outbox1 rptr register is accessed without locks (dal & dc) + * and to be called only by dmub_srv_stat_get_notification() + */ + REG_WRITE(DMCUB_OUTBOX1_RPTR, rptr_offset); +} + +bool dmub_dcn35_is_hw_init(struct dmub_srv *dmub) +{ + union dmub_fw_boot_status status; + uint32_t is_enable; + + status.all = REG_READ(DMCUB_SCRATCH0); + REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable); + + return is_enable != 0 && status.bits.dal_fw; +} + +bool dmub_dcn35_is_supported(struct dmub_srv *dmub) +{ + uint32_t supported = 0; + + REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported); + + return supported; +} + +void dmub_dcn35_set_gpint(struct dmub_srv *dmub, + union dmub_gpint_data_register reg) +{ + REG_WRITE(DMCUB_GPINT_DATAIN1, reg.all); +} + +bool dmub_dcn35_is_gpint_acked(struct dmub_srv *dmub, + union dmub_gpint_data_register reg) +{ + union dmub_gpint_data_register test; + + reg.bits.status = 0; + test.all = REG_READ(DMCUB_GPINT_DATAIN1); + + return test.all == reg.all; +} + +uint32_t dmub_dcn35_get_gpint_response(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_SCRATCH7); +} + +uint32_t dmub_dcn35_get_gpint_dataout(struct dmub_srv *dmub) +{ + uint32_t dataout = REG_READ(DMCUB_GPINT_DATAOUT); + + REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 0); + + REG_WRITE(DMCUB_GPINT_DATAOUT, 0); + REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 1); + REG_UPDATE(DMCUB_INTERRUPT_ACK, DMCUB_GPINT_IH_INT_ACK, 0); + + REG_UPDATE(DMCUB_INTERRUPT_ENABLE, DMCUB_GPINT_IH_INT_EN, 1); + + return dataout; +} + +union dmub_fw_boot_status dmub_dcn35_get_fw_boot_status(struct dmub_srv *dmub) +{ + union dmub_fw_boot_status status; + + status.all = REG_READ(DMCUB_SCRATCH0); + return status; +} + +union dmub_fw_boot_options dmub_dcn35_get_fw_boot_option(struct dmub_srv *dmub) +{ + union dmub_fw_boot_options option; + + option.all = REG_READ(DMCUB_SCRATCH14); + return option; +} + +void dmub_dcn35_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmub_srv_hw_params *params) +{ + union dmub_fw_boot_options boot_options = {0}; + + boot_options.bits.z10_disable = params->disable_z10; + boot_options.bits.dpia_supported = params->dpia_supported; + boot_options.bits.enable_dpia = params->disable_dpia == true ? 0:1; + boot_options.bits.usb4_cm_version = params->usb4_cm_version; + boot_options.bits.dpia_hpd_int_enable_supported = params->dpia_hpd_int_enable_supported; + boot_options.bits.power_optimization = params->power_optimization; + boot_options.bits.disable_clk_ds = params->disallow_dispclk_dppclk_ds; + boot_options.bits.disable_clk_gate = params->disable_clock_gate; + boot_options.bits.ips_disable = params->disable_ips; + + REG_WRITE(DMCUB_SCRATCH14, boot_options.all); +} + +void dmub_dcn35_skip_dmub_panel_power_sequence(struct dmub_srv *dmub, bool skip) +{ + union dmub_fw_boot_options boot_options; + boot_options.all = REG_READ(DMCUB_SCRATCH14); + boot_options.bits.skip_phy_init_panel_sequence = skip; + REG_WRITE(DMCUB_SCRATCH14, boot_options.all); +} + +void dmub_dcn35_setup_outbox0(struct dmub_srv *dmub, + const struct dmub_region *outbox0) +{ + REG_WRITE(DMCUB_OUTBOX0_BASE_ADDRESS, outbox0->base); + + REG_WRITE(DMCUB_OUTBOX0_SIZE, outbox0->top - outbox0->base); +} + +uint32_t dmub_dcn35_get_outbox0_wptr(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_OUTBOX0_WPTR); +} + +void dmub_dcn35_set_outbox0_rptr(struct dmub_srv *dmub, uint32_t rptr_offset) +{ + REG_WRITE(DMCUB_OUTBOX0_RPTR, rptr_offset); +} + +uint32_t dmub_dcn35_get_current_time(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_TIMER_CURRENT); +} + +void dmub_dcn35_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data) +{ + uint32_t is_dmub_enabled, is_soft_reset, is_sec_reset; + uint32_t is_traceport_enabled, is_cw0_enabled, is_cw6_enabled; + + if (!dmub || !diag_data) + return; + + memset(diag_data, 0, sizeof(*diag_data)); + + diag_data->dmcub_version = dmub->fw_version; + + diag_data->scratch[0] = REG_READ(DMCUB_SCRATCH0); + diag_data->scratch[1] = REG_READ(DMCUB_SCRATCH1); + diag_data->scratch[2] = REG_READ(DMCUB_SCRATCH2); + diag_data->scratch[3] = REG_READ(DMCUB_SCRATCH3); + diag_data->scratch[4] = REG_READ(DMCUB_SCRATCH4); + diag_data->scratch[5] = REG_READ(DMCUB_SCRATCH5); + diag_data->scratch[6] = REG_READ(DMCUB_SCRATCH6); + diag_data->scratch[7] = REG_READ(DMCUB_SCRATCH7); + diag_data->scratch[8] = REG_READ(DMCUB_SCRATCH8); + diag_data->scratch[9] = REG_READ(DMCUB_SCRATCH9); + diag_data->scratch[10] = REG_READ(DMCUB_SCRATCH10); + diag_data->scratch[11] = REG_READ(DMCUB_SCRATCH11); + diag_data->scratch[12] = REG_READ(DMCUB_SCRATCH12); + diag_data->scratch[13] = REG_READ(DMCUB_SCRATCH13); + diag_data->scratch[14] = REG_READ(DMCUB_SCRATCH14); + diag_data->scratch[15] = REG_READ(DMCUB_SCRATCH15); + diag_data->scratch[16] = REG_READ(DMCUB_SCRATCH16); + + diag_data->undefined_address_fault_addr = REG_READ(DMCUB_UNDEFINED_ADDRESS_FAULT_ADDR); + diag_data->inst_fetch_fault_addr = REG_READ(DMCUB_INST_FETCH_FAULT_ADDR); + diag_data->data_write_fault_addr = REG_READ(DMCUB_DATA_WRITE_FAULT_ADDR); + + diag_data->inbox1_rptr = REG_READ(DMCUB_INBOX1_RPTR); + diag_data->inbox1_wptr = REG_READ(DMCUB_INBOX1_WPTR); + diag_data->inbox1_size = REG_READ(DMCUB_INBOX1_SIZE); + + diag_data->inbox0_rptr = REG_READ(DMCUB_INBOX0_RPTR); + diag_data->inbox0_wptr = REG_READ(DMCUB_INBOX0_WPTR); + diag_data->inbox0_size = REG_READ(DMCUB_INBOX0_SIZE); + + REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_dmub_enabled); + diag_data->is_dmcub_enabled = is_dmub_enabled; + + REG_GET(DMCUB_CNTL2, DMCUB_SOFT_RESET, &is_soft_reset); + diag_data->is_dmcub_soft_reset = is_soft_reset; + + REG_GET(DMCUB_SEC_CNTL, DMCUB_SEC_RESET_STATUS, &is_sec_reset); + diag_data->is_dmcub_secure_reset = is_sec_reset; + + REG_GET(DMCUB_CNTL, DMCUB_TRACEPORT_EN, &is_traceport_enabled); + diag_data->is_traceport_en = is_traceport_enabled; + + REG_GET(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE, &is_cw0_enabled); + diag_data->is_cw0_enabled = is_cw0_enabled; + + REG_GET(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE, &is_cw6_enabled); + diag_data->is_cw6_enabled = is_cw6_enabled; + + diag_data->gpint_datain0 = REG_READ(DMCUB_GPINT_DATAIN0); +} +void dmub_dcn35_configure_dmub_in_system_memory(struct dmub_srv *dmub) +{ + /* DMCUB_REGION3_TMR_AXI_SPACE values: + * 0b011 (0x3) - FB physical address + * 0b100 (0x4) - GPU virtual address + * + * Default value is 0x3 (FB Physical address for TMR). When programming + * DMUB to be in system memory, change to 0x4. The system memory allocated + * is accessible by both GPU and CPU, so we use GPU virtual address. + */ + REG_WRITE(DMCUB_REGION3_TMR_AXI_SPACE, 0x4); +} + +bool dmub_dcn35_should_detect(struct dmub_srv *dmub) +{ + uint32_t fw_boot_status = REG_READ(DMCUB_SCRATCH0); + bool should_detect = (fw_boot_status & DMUB_FW_BOOT_STATUS_BIT_DETECTION_REQUIRED) != 0; + return should_detect; +} + +void dmub_dcn35_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data) +{ + REG_WRITE(DMCUB_INBOX0_WPTR, data.inbox0_cmd_common.all); +} + +void dmub_dcn35_clear_inbox0_ack_register(struct dmub_srv *dmub) +{ + REG_WRITE(DMCUB_SCRATCH17, 0); +} + +uint32_t dmub_dcn35_read_inbox0_ack_register(struct dmub_srv *dmub) +{ + return REG_READ(DMCUB_SCRATCH17); +} + +bool dmub_dcn35_is_hw_powered_up(struct dmub_srv *dmub) +{ + union dmub_fw_boot_status status; + + status.all = REG_READ(DMCUB_SCRATCH0); + + return status.bits.hw_power_init_done; +} |