diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c | 341 |
1 files changed, 308 insertions, 33 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c index 0b86cee4876f..7183ac5780a4 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c @@ -57,15 +57,28 @@ #define MCP_SYNC_PHY_LOCK 0x90 #define MCP_SYNC_PHY_UNLOCK 0x91 #define MCP_BL_SET_PWM_FRAC 0x6A /* Enable or disable Fractional PWM */ +#define CRC_WIN_NOTIFY 0x92 +#define CRC_STOP_UPDATE 0x93 +#define MCP_SEND_EDID_CEA 0xA0 +#define EDID_CEA_CMD_ACK 1 +#define EDID_CEA_CMD_NACK 2 #define MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK 0x00000001L +// PSP FW version +#define mmMP0_SMN_C2PMSG_58 0x1607A + +//Register access policy version +#define mmMP0_SMN_C2PMSG_91 0x1609B + +static const uint32_t abm_gain_stepsize = 0x0060; + static bool dce_dmcu_init(struct dmcu *dmcu) { // Do nothing return true; } -bool dce_dmcu_load_iram(struct dmcu *dmcu, +static bool dce_dmcu_load_iram(struct dmcu *dmcu, unsigned int start_offset, const char *src, unsigned int bytes) @@ -93,7 +106,7 @@ bool dce_dmcu_load_iram(struct dmcu *dmcu, return true; } -static void dce_get_dmcu_psr_state(struct dmcu *dmcu, uint32_t *psr_state) +static void dce_get_dmcu_psr_state(struct dmcu *dmcu, enum dc_psr_state *state) { struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); @@ -108,7 +121,7 @@ static void dce_get_dmcu_psr_state(struct dmcu *dmcu, uint32_t *psr_state) REG_WRITE(DMCU_IRAM_RD_CTRL, psr_state_offset); /* Read data from IRAM_RD_DATA in DMCU_IRAM_RD_DATA*/ - *psr_state = REG_READ(DMCU_IRAM_RD_DATA); + *state = (enum dc_psr_state)REG_READ(DMCU_IRAM_RD_DATA); /* Disable write access to IRAM after finished using IRAM * in order to allow dynamic sleep state @@ -123,7 +136,7 @@ static void dce_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait) unsigned int dmcu_wait_reg_ready_interval = 100; unsigned int retryCount; - uint32_t psr_state = 0; + enum dc_psr_state state = PSR_STATE0; /* waitDMCUReadyForCmd */ REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, @@ -142,12 +155,12 @@ static void dce_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait) REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); if (wait == true) { for (retryCount = 0; retryCount <= 100; retryCount++) { - dce_get_dmcu_psr_state(dmcu, &psr_state); + dce_get_dmcu_psr_state(dmcu, &state); if (enable) { - if (psr_state != 0) + if (state != PSR_STATE0) break; } else { - if (psr_state == 0) + if (state == PSR_STATE0) break; } udelay(10); @@ -318,7 +331,6 @@ static void dce_get_psr_wait_loop( return; } -#if defined(CONFIG_DRM_AMD_DC_DCN1_0) static void dcn10_get_dmcu_version(struct dmcu *dmcu) { struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); @@ -372,7 +384,13 @@ static bool dcn10_dmcu_init(struct dmcu *dmcu) struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); const struct dc_config *config = &dmcu->ctx->dc->config; bool status = false; + struct dc_context *ctx = dmcu->ctx; + unsigned int i; + // 5 4 3 2 1 0 + // F E D C B A - bit 0 is A, bit 5 is F + unsigned int tx_interrupt_mask = 0; + PERF_TRACE(); /* Definition of DC_DMCU_SCRATCH * 0 : firmare not loaded * 1 : PSP load DMCU FW but not initialized @@ -380,6 +398,15 @@ static bool dcn10_dmcu_init(struct dmcu *dmcu) */ dmcu->dmcu_state = REG_READ(DC_DMCU_SCRATCH); + for (i = 0; i < ctx->dc->link_count; i++) { + if (ctx->dc->links[i]->link_enc->features.flags.bits.DP_IS_USB_C) { + if (ctx->dc->links[i]->link_enc->transmitter >= TRANSMITTER_UNIPHY_A && + ctx->dc->links[i]->link_enc->transmitter <= TRANSMITTER_UNIPHY_F) { + tx_interrupt_mask |= 1 << ctx->dc->links[i]->link_enc->transmitter; + } + } + } + switch (dmcu->dmcu_state) { case DMCU_UNLOADED: status = false; @@ -394,6 +421,8 @@ static bool dcn10_dmcu_init(struct dmcu *dmcu) /* Set backlight ramping stepsize */ REG_WRITE(MASTER_COMM_DATA_REG2, abm_gain_stepsize); + REG_WRITE(MASTER_COMM_DATA_REG3, tx_interrupt_mask); + /* Set command to initialize microcontroller */ REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_INIT_DMCU); @@ -429,9 +458,21 @@ static bool dcn10_dmcu_init(struct dmcu *dmcu) break; } + PERF_TRACE(); return status; } +static bool dcn21_dmcu_init(struct dmcu *dmcu) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + uint32_t dmcub_psp_version = REG_READ(DMCUB_SCRATCH15); + + if (dmcu->auto_load_dmcu && dmcub_psp_version == 0) { + return false; + } + + return dcn10_dmcu_init(dmcu); +} static bool dcn10_dmcu_load_iram(struct dmcu *dmcu, unsigned int start_offset, @@ -478,7 +519,7 @@ static bool dcn10_dmcu_load_iram(struct dmcu *dmcu, return true; } -static void dcn10_get_dmcu_psr_state(struct dmcu *dmcu, uint32_t *psr_state) +static void dcn10_get_dmcu_psr_state(struct dmcu *dmcu, enum dc_psr_state *state) { struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); @@ -497,7 +538,7 @@ static void dcn10_get_dmcu_psr_state(struct dmcu *dmcu, uint32_t *psr_state) REG_WRITE(DMCU_IRAM_RD_CTRL, psr_state_offset); /* Read data from IRAM_RD_DATA in DMCU_IRAM_RD_DATA*/ - *psr_state = REG_READ(DMCU_IRAM_RD_DATA); + *state = (enum dc_psr_state)REG_READ(DMCU_IRAM_RD_DATA); /* Disable write access to IRAM after finished using IRAM * in order to allow dynamic sleep state @@ -512,15 +553,12 @@ static void dcn10_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait) unsigned int dmcu_wait_reg_ready_interval = 100; unsigned int retryCount; - uint32_t psr_state = 0; + enum dc_psr_state state = PSR_STATE0; /* If microcontroller is not running, do nothing */ if (dmcu->dmcu_state != DMCU_RUNNING) return; - dcn10_get_dmcu_psr_state(dmcu, &psr_state); - if (psr_state == 0 && !enable) - return; /* waitDMCUReadyForCmd */ REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, dmcu_wait_reg_ready_interval, @@ -543,12 +581,12 @@ static void dcn10_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait) */ if (wait == true) { for (retryCount = 0; retryCount <= 1000; retryCount++) { - dcn10_get_dmcu_psr_state(dmcu, &psr_state); + dcn10_get_dmcu_psr_state(dmcu, &state); if (enable) { - if (psr_state != 0) + if (state != PSR_STATE0) break; } else { - if (psr_state == 0) + if (state == PSR_STATE0) break; } udelay(500); @@ -727,9 +765,7 @@ static bool dcn10_is_dmcu_initialized(struct dmcu *dmcu) return true; } -#endif //(CONFIG_DRM_AMD_DC_DCN1_0) -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) static bool dcn20_lock_phy(struct dmcu *dmcu) { @@ -777,7 +813,198 @@ static bool dcn20_unlock_phy(struct dmcu *dmcu) return true; } -#endif //(CONFIG_DRM_AMD_DC_DCN2_0) +static bool dcn10_send_edid_cea(struct dmcu *dmcu, + int offset, + int total_length, + uint8_t *data, + int length) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + uint32_t header, data1, data2; + + /* If microcontroller is not running, do nothing */ + if (dmcu->dmcu_state != DMCU_RUNNING) + return false; + + if (length > 8 || length <= 0) + return false; + + header = ((uint32_t)offset & 0xFFFF) << 16 | (total_length & 0xFFFF); + data1 = (((uint32_t)data[0]) << 24) | (((uint32_t)data[1]) << 16) | + (((uint32_t)data[2]) << 8) | ((uint32_t)data[3]); + data2 = (((uint32_t)data[4]) << 24) | (((uint32_t)data[5]) << 16) | + (((uint32_t)data[6]) << 8) | ((uint32_t)data[7]); + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + /* setDMCUParam_Cmd */ + REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_SEND_EDID_CEA); + + REG_WRITE(MASTER_COMM_DATA_REG1, header); + REG_WRITE(MASTER_COMM_DATA_REG2, data1); + REG_WRITE(MASTER_COMM_DATA_REG3, data2); + + /* notifyDMCUMsg */ + REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + return true; +} + +static bool dcn10_get_scp_results(struct dmcu *dmcu, + uint32_t *cmd, + uint32_t *data1, + uint32_t *data2, + uint32_t *data3) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + + /* If microcontroller is not running, do nothing */ + if (dmcu->dmcu_state != DMCU_RUNNING) + return false; + + *cmd = REG_READ(SLAVE_COMM_CMD_REG); + *data1 = REG_READ(SLAVE_COMM_DATA_REG1); + *data2 = REG_READ(SLAVE_COMM_DATA_REG2); + *data3 = REG_READ(SLAVE_COMM_DATA_REG3); + + /* clear SCP interrupt */ + REG_UPDATE(SLAVE_COMM_CNTL_REG, SLAVE_COMM_INTERRUPT, 0); + + return true; +} + +static bool dcn10_recv_amd_vsdb(struct dmcu *dmcu, + int *version, + int *min_frame_rate, + int *max_frame_rate) +{ + uint32_t data[4]; + int cmd, ack, len; + + if (!dcn10_get_scp_results(dmcu, &data[0], &data[1], &data[2], &data[3])) + return false; + + cmd = data[0] & 0x3FF; + len = (data[0] >> 10) & 0x3F; + ack = data[1]; + + if (cmd != MCP_SEND_EDID_CEA || ack != EDID_CEA_CMD_ACK || len != 12) + return false; + + if ((data[2] & 0xFF)) { + *version = (data[2] >> 8) & 0xFF; + *min_frame_rate = (data[3] >> 16) & 0xFFFF; + *max_frame_rate = data[3] & 0xFFFF; + return true; + } + + return false; +} + +static bool dcn10_recv_edid_cea_ack(struct dmcu *dmcu, int *offset) +{ + uint32_t data[4]; + int cmd, ack; + + if (!dcn10_get_scp_results(dmcu, + &data[0], &data[1], &data[2], &data[3])) + return false; + + cmd = data[0] & 0x3FF; + ack = data[1]; + + if (cmd != MCP_SEND_EDID_CEA) + return false; + + if (ack == EDID_CEA_CMD_ACK) + return true; + + *offset = data[2]; /* nack */ + return false; +} + + +#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) +static void dcn10_forward_crc_window(struct dmcu *dmcu, + struct crc_region *crc_win, + struct otg_phy_mux *mux_mapping) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + unsigned int dmcu_max_retry_on_wait_reg_ready = 801; + unsigned int dmcu_wait_reg_ready_interval = 100; + unsigned int crc_start = 0, crc_end = 0, otg_phy_mux = 0; + + /* If microcontroller is not running, do nothing */ + if (dmcu->dmcu_state != DMCU_RUNNING) + return; + + if (!crc_win) + return; + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, + dmcu_wait_reg_ready_interval, + dmcu_max_retry_on_wait_reg_ready); + + /* build up nitification data */ + crc_start = (((unsigned int) crc_win->x_start) << 16) | crc_win->y_start; + crc_end = (((unsigned int) crc_win->x_end) << 16) | crc_win->y_end; + otg_phy_mux = + (((unsigned int) mux_mapping->otg_output_num) << 16) | mux_mapping->phy_output_num; + + dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1), + crc_start); + + dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG2), + crc_end); + + dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG3), + otg_phy_mux); + + /* setDMCUParam_Cmd */ + REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, + CRC_WIN_NOTIFY); + + /* notifyDMCUMsg */ + REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); +} + +static void dcn10_stop_crc_win_update(struct dmcu *dmcu, + struct otg_phy_mux *mux_mapping) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + unsigned int dmcu_max_retry_on_wait_reg_ready = 801; + unsigned int dmcu_wait_reg_ready_interval = 100; + unsigned int otg_phy_mux = 0; + + /* If microcontroller is not running, do nothing */ + if (dmcu->dmcu_state != DMCU_RUNNING) + return; + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, + dmcu_wait_reg_ready_interval, + dmcu_max_retry_on_wait_reg_ready); + + /* build up nitification data */ + otg_phy_mux = + (((unsigned int) mux_mapping->otg_output_num) << 16) | mux_mapping->phy_output_num; + + dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1), + otg_phy_mux); + + /* setDMCUParam_Cmd */ + REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, + CRC_STOP_UPDATE); + + /* notifyDMCUMsg */ + REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); +} +#endif static const struct dmcu_funcs dce_funcs = { .dmcu_init = dce_dmcu_init, @@ -790,7 +1017,6 @@ static const struct dmcu_funcs dce_funcs = { .is_dmcu_initialized = dce_is_dmcu_initialized }; -#if defined(CONFIG_DRM_AMD_DC_DCN1_0) static const struct dmcu_funcs dcn10_funcs = { .dmcu_init = dcn10_dmcu_init, .load_iram = dcn10_dmcu_load_iram, @@ -799,11 +1025,16 @@ static const struct dmcu_funcs dcn10_funcs = { .get_psr_state = dcn10_get_dmcu_psr_state, .set_psr_wait_loop = dcn10_psr_wait_loop, .get_psr_wait_loop = dcn10_get_psr_wait_loop, + .send_edid_cea = dcn10_send_edid_cea, + .recv_amd_vsdb = dcn10_recv_amd_vsdb, + .recv_edid_cea_ack = dcn10_recv_edid_cea_ack, +#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) + .forward_crc_window = dcn10_forward_crc_window, + .stop_crc_win_update = dcn10_stop_crc_win_update, +#endif .is_dmcu_initialized = dcn10_is_dmcu_initialized }; -#endif -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) static const struct dmcu_funcs dcn20_funcs = { .dmcu_init = dcn10_dmcu_init, .load_iram = dcn10_dmcu_load_iram, @@ -816,7 +1047,19 @@ static const struct dmcu_funcs dcn20_funcs = { .lock_phy = dcn20_lock_phy, .unlock_phy = dcn20_unlock_phy }; -#endif + +static const struct dmcu_funcs dcn21_funcs = { + .dmcu_init = dcn21_dmcu_init, + .load_iram = dcn10_dmcu_load_iram, + .set_psr_enable = dcn10_dmcu_set_psr_enable, + .setup_psr = dcn10_dmcu_setup_psr, + .get_psr_state = dcn10_get_dmcu_psr_state, + .set_psr_wait_loop = dcn10_psr_wait_loop, + .get_psr_wait_loop = dcn10_get_psr_wait_loop, + .is_dmcu_initialized = dcn10_is_dmcu_initialized, + .lock_phy = dcn20_lock_phy, + .unlock_phy = dcn20_unlock_phy +}; static void dce_dmcu_construct( struct dce_dmcu *dmcu_dce, @@ -836,6 +1079,24 @@ static void dce_dmcu_construct( dmcu_dce->dmcu_mask = dmcu_mask; } +static void dcn21_dmcu_construct( + struct dce_dmcu *dmcu_dce, + struct dc_context *ctx, + const struct dce_dmcu_registers *regs, + const struct dce_dmcu_shift *dmcu_shift, + const struct dce_dmcu_mask *dmcu_mask) +{ + uint32_t psp_version = 0; + + dce_dmcu_construct(dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask); + + if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) { + psp_version = dm_read_reg(ctx, mmMP0_SMN_C2PMSG_58); + dmcu_dce->base.auto_load_dmcu = ((psp_version & 0x00FF00FF) > 0x00110029); + dmcu_dce->base.psp_version = psp_version; + } +} + struct dmcu *dce_dmcu_create( struct dc_context *ctx, const struct dce_dmcu_registers *regs, @@ -857,14 +1118,13 @@ struct dmcu *dce_dmcu_create( return &dmcu_dce->base; } -#if defined(CONFIG_DRM_AMD_DC_DCN1_0) struct dmcu *dcn10_dmcu_create( struct dc_context *ctx, const struct dce_dmcu_registers *regs, const struct dce_dmcu_shift *dmcu_shift, const struct dce_dmcu_mask *dmcu_mask) { - struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_KERNEL); + struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_ATOMIC); if (dmcu_dce == NULL) { BREAK_TO_DEBUGGER(); @@ -878,16 +1138,14 @@ struct dmcu *dcn10_dmcu_create( return &dmcu_dce->base; } -#endif -#if defined(CONFIG_DRM_AMD_DC_DCN2_0) struct dmcu *dcn20_dmcu_create( struct dc_context *ctx, const struct dce_dmcu_registers *regs, const struct dce_dmcu_shift *dmcu_shift, const struct dce_dmcu_mask *dmcu_mask) { - struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_KERNEL); + struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_ATOMIC); if (dmcu_dce == NULL) { BREAK_TO_DEBUGGER(); @@ -901,15 +1159,32 @@ struct dmcu *dcn20_dmcu_create( return &dmcu_dce->base; } -#endif + +struct dmcu *dcn21_dmcu_create( + struct dc_context *ctx, + const struct dce_dmcu_registers *regs, + const struct dce_dmcu_shift *dmcu_shift, + const struct dce_dmcu_mask *dmcu_mask) +{ + struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_ATOMIC); + + if (dmcu_dce == NULL) { + BREAK_TO_DEBUGGER(); + return NULL; + } + + dcn21_dmcu_construct( + dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask); + + dmcu_dce->base.funcs = &dcn21_funcs; + + return &dmcu_dce->base; +} void dce_dmcu_destroy(struct dmcu **dmcu) { struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(*dmcu); - if (dmcu_dce->base.dmcu_state == DMCU_RUNNING) - dmcu_dce->base.funcs->set_psr_enable(*dmcu, false, true); - kfree(dmcu_dce); *dmcu = NULL; } |