| /* |
| * Copyright (c) 2015-2017 The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| */ |
| |
| #define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__ |
| #include "sde_encoder_phys.h" |
| #include "sde_hw_interrupts.h" |
| #include "sde_core_irq.h" |
| #include "sde_formats.h" |
| |
| #define SDE_DEBUG_CMDENC(e, fmt, ...) SDE_DEBUG("enc%d intf%d " fmt, \ |
| (e) && (e)->base.parent ? \ |
| (e)->base.parent->base.id : -1, \ |
| (e) ? (e)->intf_idx - INTF_0 : -1, ##__VA_ARGS__) |
| |
| #define SDE_ERROR_CMDENC(e, fmt, ...) SDE_ERROR("enc%d intf%d " fmt, \ |
| (e) && (e)->base.parent ? \ |
| (e)->base.parent->base.id : -1, \ |
| (e) ? (e)->intf_idx - INTF_0 : -1, ##__VA_ARGS__) |
| |
| #define to_sde_encoder_phys_cmd(x) \ |
| container_of(x, struct sde_encoder_phys_cmd, base) |
| |
| #define PP_TIMEOUT_MAX_TRIALS 10 |
| |
| /* |
| * Tearcheck sync start and continue thresholds are empirically found |
| * based on common panels In the future, may want to allow panels to override |
| * these default values |
| */ |
| #define DEFAULT_TEARCHECK_SYNC_THRESH_START 4 |
| #define DEFAULT_TEARCHECK_SYNC_THRESH_CONTINUE 4 |
| |
| static inline bool sde_encoder_phys_cmd_is_master( |
| struct sde_encoder_phys *phys_enc) |
| { |
| return (phys_enc->split_role != ENC_ROLE_SLAVE) ? true : false; |
| } |
| |
| static bool sde_encoder_phys_cmd_mode_fixup( |
| struct sde_encoder_phys *phys_enc, |
| const struct drm_display_mode *mode, |
| struct drm_display_mode *adj_mode) |
| { |
| if (phys_enc) |
| SDE_DEBUG_CMDENC(to_sde_encoder_phys_cmd(phys_enc), "\n"); |
| return true; |
| } |
| |
| static void sde_encoder_phys_cmd_mode_set( |
| struct sde_encoder_phys *phys_enc, |
| struct drm_display_mode *mode, |
| struct drm_display_mode *adj_mode) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| struct sde_rm *rm = &phys_enc->sde_kms->rm; |
| struct sde_rm_hw_iter iter; |
| int i, instance; |
| |
| if (!phys_enc || !mode || !adj_mode) { |
| SDE_ERROR("invalid arg(s), enc %d mode %d adj_mode %d\n", |
| phys_enc != 0, mode != 0, adj_mode != 0); |
| return; |
| } |
| phys_enc->cached_mode = *adj_mode; |
| SDE_DEBUG_CMDENC(cmd_enc, "caching mode:\n"); |
| drm_mode_debug_printmodeline(adj_mode); |
| |
| instance = phys_enc->split_role == ENC_ROLE_SLAVE ? 1 : 0; |
| |
| /* Retrieve previously allocated HW Resources. Shouldn't fail */ |
| sde_rm_init_hw_iter(&iter, phys_enc->parent->base.id, SDE_HW_BLK_CTL); |
| for (i = 0; i <= instance; i++) { |
| if (sde_rm_get_hw(rm, &iter)) |
| phys_enc->hw_ctl = (struct sde_hw_ctl *)iter.hw; |
| } |
| |
| if (IS_ERR_OR_NULL(phys_enc->hw_ctl)) { |
| SDE_ERROR_CMDENC(cmd_enc, "failed to init ctl: %ld\n", |
| PTR_ERR(phys_enc->hw_ctl)); |
| phys_enc->hw_ctl = NULL; |
| return; |
| } |
| } |
| |
| static void sde_encoder_phys_cmd_pp_tx_done_irq(void *arg, int irq_idx) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = arg; |
| struct sde_encoder_phys *phys_enc; |
| unsigned long lock_flags; |
| int new_cnt; |
| |
| if (!cmd_enc) |
| return; |
| |
| phys_enc = &cmd_enc->base; |
| |
| /* notify all synchronous clients first, then asynchronous clients */ |
| if (phys_enc->parent_ops.handle_frame_done) |
| phys_enc->parent_ops.handle_frame_done(phys_enc->parent, |
| phys_enc, SDE_ENCODER_FRAME_EVENT_DONE); |
| |
| spin_lock_irqsave(phys_enc->enc_spinlock, lock_flags); |
| new_cnt = atomic_add_unless(&phys_enc->pending_kickoff_cnt, -1, 0); |
| spin_unlock_irqrestore(phys_enc->enc_spinlock, lock_flags); |
| |
| SDE_EVT32_IRQ(DRMID(phys_enc->parent), |
| phys_enc->hw_pp->idx - PINGPONG_0, new_cnt); |
| |
| /* Signal any waiting atomic commit thread */ |
| wake_up_all(&phys_enc->pending_kickoff_wq); |
| } |
| |
| static void sde_encoder_phys_cmd_pp_rd_ptr_irq(void *arg, int irq_idx) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = arg; |
| struct sde_encoder_phys *phys_enc = &cmd_enc->base; |
| |
| if (!cmd_enc) |
| return; |
| |
| if (phys_enc->parent_ops.handle_vblank_virt) |
| phys_enc->parent_ops.handle_vblank_virt(phys_enc->parent, |
| phys_enc); |
| } |
| |
| static bool _sde_encoder_phys_is_ppsplit_slave( |
| struct sde_encoder_phys *phys_enc) |
| { |
| enum sde_rm_topology_name topology; |
| |
| if (!phys_enc) |
| return false; |
| |
| topology = sde_connector_get_topology_name(phys_enc->connector); |
| if (topology == SDE_RM_TOPOLOGY_PPSPLIT && |
| phys_enc->split_role == ENC_ROLE_SLAVE) |
| return true; |
| |
| return false; |
| } |
| |
| static int _sde_encoder_phys_cmd_handle_ppdone_timeout( |
| struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| u32 frame_event = SDE_ENCODER_FRAME_EVENT_ERROR; |
| bool do_log = false; |
| |
| cmd_enc->pp_timeout_report_cnt++; |
| if (cmd_enc->pp_timeout_report_cnt == PP_TIMEOUT_MAX_TRIALS) { |
| frame_event |= SDE_ENCODER_FRAME_EVENT_PANEL_DEAD; |
| do_log = true; |
| } else if (cmd_enc->pp_timeout_report_cnt == 1) { |
| do_log = true; |
| } |
| |
| SDE_EVT32(DRMID(phys_enc->parent), phys_enc->hw_pp->idx - PINGPONG_0, |
| cmd_enc->pp_timeout_report_cnt, |
| atomic_read(&phys_enc->pending_kickoff_cnt)); |
| |
| /* to avoid flooding, only log first time, and "dead" time */ |
| if (do_log) { |
| SDE_ERROR_CMDENC(cmd_enc, |
| "pp:%d kickoff timed out ctl %d cnt %d koff_cnt %d\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, |
| phys_enc->hw_ctl->idx - CTL_0, |
| cmd_enc->pp_timeout_report_cnt, |
| atomic_read(&phys_enc->pending_kickoff_cnt)); |
| |
| SDE_EVT32(DRMID(phys_enc->parent), SDE_EVTLOG_FATAL); |
| |
| SDE_DBG_DUMP("sde", "dsi0_ctrl", "dsi0_phy", "dsi1_ctrl", |
| "dsi1_phy", "vbif", "dbg_bus", |
| "vbif_dbg_bus", "panic"); |
| } |
| |
| atomic_add_unless(&phys_enc->pending_kickoff_cnt, -1, 0); |
| |
| /* request a ctl reset before the next kickoff */ |
| phys_enc->enable_state = SDE_ENC_ERR_NEEDS_HW_RESET; |
| |
| if (phys_enc->parent_ops.handle_frame_done) |
| phys_enc->parent_ops.handle_frame_done( |
| phys_enc->parent, phys_enc, frame_event); |
| |
| return -ETIMEDOUT; |
| } |
| |
| static int _sde_encoder_phys_cmd_wait_for_idle( |
| struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| u32 irq_status; |
| int ret; |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return -EINVAL; |
| } |
| |
| /* slave encoder doesn't enable for ppsplit */ |
| if (_sde_encoder_phys_is_ppsplit_slave(phys_enc)) |
| return 0; |
| |
| /* return EWOULDBLOCK since we know the wait isn't necessary */ |
| if (phys_enc->enable_state == SDE_ENC_DISABLED) { |
| SDE_ERROR_CMDENC(cmd_enc, "encoder is disabled\n"); |
| return -EWOULDBLOCK; |
| } |
| |
| /* wait for previous kickoff to complete */ |
| ret = sde_encoder_helper_wait_event_timeout( |
| DRMID(phys_enc->parent), |
| phys_enc->hw_pp->idx - PINGPONG_0, |
| &phys_enc->pending_kickoff_wq, |
| &phys_enc->pending_kickoff_cnt, |
| KICKOFF_TIMEOUT_MS); |
| if (ret <= 0) { |
| /* read and clear interrupt */ |
| irq_status = sde_core_irq_read(phys_enc->sde_kms, |
| INTR_IDX_PINGPONG, true); |
| if (irq_status) { |
| unsigned long flags; |
| SDE_EVT32(DRMID(phys_enc->parent), |
| phys_enc->hw_pp->idx - PINGPONG_0); |
| SDE_DEBUG_CMDENC(cmd_enc, |
| "pp:%d done but irq not triggered\n", |
| phys_enc->hw_pp->idx - PINGPONG_0); |
| local_irq_save(flags); |
| sde_encoder_phys_cmd_pp_tx_done_irq(cmd_enc, |
| INTR_IDX_PINGPONG); |
| local_irq_restore(flags); |
| ret = 0; |
| } else { |
| ret = _sde_encoder_phys_cmd_handle_ppdone_timeout( |
| phys_enc); |
| } |
| } else { |
| ret = 0; |
| } |
| |
| if (!ret) |
| cmd_enc->pp_timeout_report_cnt = 0; |
| |
| return ret; |
| } |
| |
| static void sde_encoder_phys_cmd_underrun_irq(void *arg, int irq_idx) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = arg; |
| struct sde_encoder_phys *phys_enc; |
| |
| if (!cmd_enc) |
| return; |
| |
| phys_enc = &cmd_enc->base; |
| if (phys_enc->parent_ops.handle_underrun_virt) |
| phys_enc->parent_ops.handle_underrun_virt(phys_enc->parent, |
| phys_enc); |
| } |
| |
| static int sde_encoder_phys_cmd_register_irq(struct sde_encoder_phys *phys_enc, |
| enum sde_intr_type intr_type, int idx, |
| void (*irq_func)(void *, int), const char *irq_name) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| int idx_lookup = 0; |
| int ret = 0; |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return -EINVAL; |
| } |
| |
| idx_lookup = (intr_type == SDE_IRQ_TYPE_INTF_UNDER_RUN) ? |
| cmd_enc->intf_idx : phys_enc->hw_pp->idx; |
| cmd_enc->irq_idx[idx] = sde_core_irq_idx_lookup(phys_enc->sde_kms, |
| intr_type, idx_lookup); |
| if (cmd_enc->irq_idx[idx] < 0) { |
| SDE_ERROR_CMDENC(cmd_enc, |
| "failed to lookup IRQ index for %s with pp=%d\n", |
| irq_name, |
| phys_enc->hw_pp->idx - PINGPONG_0); |
| return -EINVAL; |
| } |
| |
| cmd_enc->irq_cb[idx].func = irq_func; |
| cmd_enc->irq_cb[idx].arg = cmd_enc; |
| ret = sde_core_irq_register_callback(phys_enc->sde_kms, |
| cmd_enc->irq_idx[idx], &cmd_enc->irq_cb[idx]); |
| if (ret) { |
| SDE_ERROR_CMDENC(cmd_enc, |
| "failed to register IRQ callback %s\n", |
| irq_name); |
| return ret; |
| } |
| |
| ret = sde_core_irq_enable(phys_enc->sde_kms, &cmd_enc->irq_idx[idx], 1); |
| if (ret) { |
| SDE_ERROR_CMDENC(cmd_enc, |
| "failed to enable IRQ for %s, pp %d, irq_idx %d\n", |
| irq_name, |
| phys_enc->hw_pp->idx - PINGPONG_0, |
| cmd_enc->irq_idx[idx]); |
| cmd_enc->irq_idx[idx] = -EINVAL; |
| |
| /* Unregister callback on IRQ enable failure */ |
| sde_core_irq_unregister_callback(phys_enc->sde_kms, |
| cmd_enc->irq_idx[idx], &cmd_enc->irq_cb[idx]); |
| return ret; |
| } |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "registered IRQ %s for pp %d, irq_idx %d\n", |
| irq_name, |
| phys_enc->hw_pp->idx - PINGPONG_0, |
| cmd_enc->irq_idx[idx]); |
| |
| return ret; |
| } |
| |
| static int sde_encoder_phys_cmd_unregister_irq( |
| struct sde_encoder_phys *phys_enc, int idx) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return -EINVAL; |
| } |
| |
| sde_core_irq_disable(phys_enc->sde_kms, &cmd_enc->irq_idx[idx], 1); |
| sde_core_irq_unregister_callback(phys_enc->sde_kms, |
| cmd_enc->irq_idx[idx], &cmd_enc->irq_cb[idx]); |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "unregistered IRQ for pp %d, irq_idx %d\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, |
| cmd_enc->irq_idx[idx]); |
| |
| return 0; |
| } |
| |
| static void sde_encoder_phys_cmd_tearcheck_config( |
| struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| struct sde_hw_tear_check tc_cfg = { 0 }; |
| struct drm_display_mode *mode = &phys_enc->cached_mode; |
| bool tc_enable = true; |
| u32 vsync_hz; |
| struct msm_drm_private *priv; |
| struct sde_kms *sde_kms; |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return; |
| } |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "pp %d\n", phys_enc->hw_pp->idx - PINGPONG_0); |
| |
| if (!phys_enc->hw_pp->ops.setup_tearcheck || |
| !phys_enc->hw_pp->ops.enable_tearcheck) { |
| SDE_DEBUG_CMDENC(cmd_enc, "tearcheck not supported\n"); |
| return; |
| } |
| |
| sde_kms = phys_enc->sde_kms; |
| priv = sde_kms->dev->dev_private; |
| /* |
| * TE default: dsi byte clock calculated base on 70 fps; |
| * around 14 ms to complete a kickoff cycle if te disabled; |
| * vclk_line base on 60 fps; write is faster than read; |
| * init == start == rdptr; |
| * |
| * vsync_count is ratio of MDP VSYNC clock frequency to LCD panel |
| * frequency divided by the no. of rows (lines) in the LCDpanel. |
| */ |
| vsync_hz = sde_power_clk_get_rate(&priv->phandle, "vsync_clk"); |
| if (!vsync_hz) { |
| SDE_DEBUG_CMDENC(cmd_enc, "invalid vsync clock rate\n"); |
| return; |
| } |
| |
| tc_cfg.vsync_count = vsync_hz / (mode->vtotal * mode->vrefresh); |
| tc_cfg.hw_vsync_mode = 1; |
| |
| /* |
| * By setting sync_cfg_height to near max register value, we essentially |
| * disable sde hw generated TE signal, since hw TE will arrive first. |
| * Only caveat is if due to error, we hit wrap-around. |
| */ |
| tc_cfg.sync_cfg_height = 0xFFF0; |
| tc_cfg.vsync_init_val = mode->vdisplay; |
| tc_cfg.sync_threshold_start = DEFAULT_TEARCHECK_SYNC_THRESH_START; |
| tc_cfg.sync_threshold_continue = DEFAULT_TEARCHECK_SYNC_THRESH_CONTINUE; |
| tc_cfg.start_pos = mode->vdisplay; |
| tc_cfg.rd_ptr_irq = mode->vdisplay + 1; |
| |
| SDE_DEBUG_CMDENC(cmd_enc, |
| "tc %d vsync_clk_speed_hz %u vtotal %u vrefresh %u\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, vsync_hz, |
| mode->vtotal, mode->vrefresh); |
| SDE_DEBUG_CMDENC(cmd_enc, |
| "tc %d enable %u start_pos %u rd_ptr_irq %u\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, tc_enable, tc_cfg.start_pos, |
| tc_cfg.rd_ptr_irq); |
| SDE_DEBUG_CMDENC(cmd_enc, |
| "tc %d hw_vsync_mode %u vsync_count %u vsync_init_val %u\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, tc_cfg.hw_vsync_mode, |
| tc_cfg.vsync_count, tc_cfg.vsync_init_val); |
| SDE_DEBUG_CMDENC(cmd_enc, |
| "tc %d cfgheight %u thresh_start %u thresh_cont %u\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, tc_cfg.sync_cfg_height, |
| tc_cfg.sync_threshold_start, tc_cfg.sync_threshold_continue); |
| |
| phys_enc->hw_pp->ops.setup_tearcheck(phys_enc->hw_pp, &tc_cfg); |
| phys_enc->hw_pp->ops.enable_tearcheck(phys_enc->hw_pp, tc_enable); |
| } |
| |
| static void sde_encoder_phys_cmd_pingpong_config( |
| struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| struct sde_hw_intf_cfg intf_cfg = { 0 }; |
| |
| if (!phys_enc || !phys_enc->hw_ctl || |
| !phys_enc->hw_ctl->ops.setup_intf_cfg) { |
| SDE_ERROR("invalid arg(s), enc %d\n", phys_enc != 0); |
| return; |
| } |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "pp %d, enabling mode:\n", |
| phys_enc->hw_pp->idx - PINGPONG_0); |
| drm_mode_debug_printmodeline(&phys_enc->cached_mode); |
| |
| intf_cfg.intf = cmd_enc->intf_idx; |
| intf_cfg.intf_mode_sel = SDE_CTL_MODE_SEL_CMD; |
| intf_cfg.stream_sel = cmd_enc->stream_sel; |
| intf_cfg.mode_3d = sde_encoder_helper_get_3d_blend_mode(phys_enc); |
| |
| phys_enc->hw_ctl->ops.setup_intf_cfg(phys_enc->hw_ctl, &intf_cfg); |
| |
| sde_encoder_phys_cmd_tearcheck_config(phys_enc); |
| } |
| |
| static bool sde_encoder_phys_cmd_needs_single_flush( |
| struct sde_encoder_phys *phys_enc) |
| { |
| enum sde_rm_topology_name topology; |
| |
| if (!phys_enc) |
| return false; |
| |
| topology = sde_connector_get_topology_name(phys_enc->connector); |
| return topology == SDE_RM_TOPOLOGY_PPSPLIT; |
| } |
| |
| static int sde_encoder_phys_cmd_control_vblank_irq( |
| struct sde_encoder_phys *phys_enc, |
| bool enable) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| int ret = 0; |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return -EINVAL; |
| } |
| |
| /* Slave encoders don't report vblank */ |
| if (!sde_encoder_phys_cmd_is_master(phys_enc)) |
| goto end; |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "[%pS] enable=%d/%d\n", |
| __builtin_return_address(0), |
| enable, atomic_read(&phys_enc->vblank_refcount)); |
| |
| SDE_EVT32(DRMID(phys_enc->parent), phys_enc->hw_pp->idx - PINGPONG_0, |
| enable, atomic_read(&phys_enc->vblank_refcount)); |
| |
| if (enable && atomic_inc_return(&phys_enc->vblank_refcount) == 1) |
| ret = sde_encoder_phys_cmd_register_irq(phys_enc, |
| SDE_IRQ_TYPE_PING_PONG_RD_PTR, |
| INTR_IDX_RDPTR, |
| sde_encoder_phys_cmd_pp_rd_ptr_irq, |
| "pp_rd_ptr"); |
| else if (!enable && atomic_dec_return(&phys_enc->vblank_refcount) == 0) |
| ret = sde_encoder_phys_cmd_unregister_irq(phys_enc, |
| INTR_IDX_RDPTR); |
| |
| end: |
| if (ret) |
| SDE_ERROR_CMDENC(cmd_enc, |
| "control vblank irq error %d, enable %d\n", |
| ret, enable); |
| |
| return ret; |
| } |
| |
| static void sde_encoder_phys_cmd_enable(struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| struct sde_hw_ctl *ctl; |
| u32 flush_mask = 0; |
| int ret; |
| |
| if (!phys_enc || !phys_enc->hw_ctl) { |
| SDE_ERROR("invalid arg(s), encoder %d\n", phys_enc != 0); |
| return; |
| } |
| SDE_DEBUG_CMDENC(cmd_enc, "pp %d\n", phys_enc->hw_pp->idx - PINGPONG_0); |
| |
| if (phys_enc->enable_state == SDE_ENC_ENABLED) { |
| SDE_ERROR("already enabled\n"); |
| return; |
| } |
| |
| sde_encoder_helper_split_config(phys_enc, cmd_enc->intf_idx); |
| |
| sde_encoder_phys_cmd_pingpong_config(phys_enc); |
| |
| if (_sde_encoder_phys_is_ppsplit_slave(phys_enc)) |
| goto update_flush; |
| |
| /* Both master and slave need to register for pp_tx_done */ |
| ret = sde_encoder_phys_cmd_register_irq(phys_enc, |
| SDE_IRQ_TYPE_PING_PONG_COMP, |
| INTR_IDX_PINGPONG, |
| sde_encoder_phys_cmd_pp_tx_done_irq, |
| "pp_tx_done"); |
| if (ret) |
| return; |
| |
| ret = sde_encoder_phys_cmd_control_vblank_irq(phys_enc, true); |
| if (ret) { |
| sde_encoder_phys_cmd_unregister_irq(phys_enc, |
| INTR_IDX_PINGPONG); |
| return; |
| } |
| |
| ret = sde_encoder_phys_cmd_register_irq(phys_enc, |
| SDE_IRQ_TYPE_INTF_UNDER_RUN, |
| INTR_IDX_UNDERRUN, |
| sde_encoder_phys_cmd_underrun_irq, |
| "underrun"); |
| if (ret) { |
| sde_encoder_phys_cmd_control_vblank_irq(phys_enc, false); |
| sde_encoder_phys_cmd_unregister_irq(phys_enc, |
| INTR_IDX_PINGPONG); |
| return; |
| } |
| |
| update_flush: |
| ctl = phys_enc->hw_ctl; |
| ctl->ops.get_bitmask_intf(ctl, &flush_mask, cmd_enc->intf_idx); |
| ctl->ops.update_pending_flush(ctl, flush_mask); |
| phys_enc->enable_state = SDE_ENC_ENABLED; |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "update pending flush ctl %d flush_mask %x\n", |
| ctl->idx - CTL_0, flush_mask); |
| } |
| |
| static void sde_encoder_phys_cmd_disable(struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| int ret; |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return; |
| } |
| SDE_DEBUG_CMDENC(cmd_enc, "pp %d\n", phys_enc->hw_pp->idx - PINGPONG_0); |
| |
| if (phys_enc->enable_state == SDE_ENC_DISABLED) { |
| SDE_ERROR_CMDENC(cmd_enc, "already disabled\n"); |
| return; |
| } |
| |
| SDE_EVT32(DRMID(phys_enc->parent), phys_enc->hw_pp->idx - PINGPONG_0); |
| |
| if (!_sde_encoder_phys_is_ppsplit_slave(phys_enc)) { |
| ret = _sde_encoder_phys_cmd_wait_for_idle(phys_enc); |
| if (ret) { |
| atomic_set(&phys_enc->pending_kickoff_cnt, 0); |
| SDE_ERROR_CMDENC(cmd_enc, |
| "pp %d failed wait for idle, %d\n", |
| phys_enc->hw_pp->idx - PINGPONG_0, ret); |
| SDE_EVT32(DRMID(phys_enc->parent), |
| phys_enc->hw_pp->idx - PINGPONG_0, ret); |
| } |
| |
| sde_encoder_phys_cmd_unregister_irq( |
| phys_enc, INTR_IDX_UNDERRUN); |
| sde_encoder_phys_cmd_control_vblank_irq(phys_enc, false); |
| sde_encoder_phys_cmd_unregister_irq( |
| phys_enc, INTR_IDX_PINGPONG); |
| } |
| |
| phys_enc->enable_state = SDE_ENC_DISABLED; |
| |
| if (atomic_read(&phys_enc->vblank_refcount)) |
| SDE_ERROR("enc:%d role:%d invalid vblank refcount %d\n", |
| phys_enc->parent->base.id, |
| phys_enc->split_role, |
| atomic_read(&phys_enc->vblank_refcount)); |
| } |
| |
| static void sde_encoder_phys_cmd_destroy(struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return; |
| } |
| kfree(cmd_enc); |
| } |
| |
| static void sde_encoder_phys_cmd_get_hw_resources( |
| struct sde_encoder_phys *phys_enc, |
| struct sde_encoder_hw_resources *hw_res, |
| struct drm_connector_state *conn_state) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return; |
| } |
| SDE_DEBUG_CMDENC(cmd_enc, "\n"); |
| hw_res->intfs[cmd_enc->intf_idx - INTF_0] = INTF_MODE_CMD; |
| } |
| |
| static void sde_encoder_phys_cmd_prepare_for_kickoff( |
| struct sde_encoder_phys *phys_enc, |
| struct sde_encoder_kickoff_params *params) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| int ret; |
| |
| if (!phys_enc) { |
| SDE_ERROR("invalid encoder\n"); |
| return; |
| } |
| SDE_DEBUG_CMDENC(cmd_enc, "pp %d\n", phys_enc->hw_pp->idx - PINGPONG_0); |
| SDE_EVT32(DRMID(phys_enc->parent), phys_enc->hw_pp->idx - PINGPONG_0); |
| |
| /* |
| * Mark kickoff request as outstanding. If there are more than one, |
| * outstanding, then we have to wait for the previous one to complete |
| */ |
| ret = _sde_encoder_phys_cmd_wait_for_idle(phys_enc); |
| if (ret) { |
| /* force pending_kickoff_cnt 0 to discard failed kickoff */ |
| atomic_set(&phys_enc->pending_kickoff_cnt, 0); |
| SDE_EVT32(DRMID(phys_enc->parent), |
| phys_enc->hw_pp->idx - PINGPONG_0); |
| SDE_ERROR("failed wait_for_idle: %d\n", ret); |
| } |
| } |
| |
| static int sde_encoder_phys_cmd_wait_for_commit_done( |
| struct sde_encoder_phys *phys_enc) |
| { |
| struct sde_encoder_phys_cmd *cmd_enc = |
| to_sde_encoder_phys_cmd(phys_enc); |
| |
| if (cmd_enc->serialize_wait4pp) |
| sde_encoder_phys_cmd_prepare_for_kickoff(phys_enc, NULL); |
| |
| /* |
| * following statement is true serialize_wait4pp is false. |
| * |
| * Since ctl_start "commits" the transaction to hardware, and the |
| * tearcheck block takes it from there, there is no need to have a |
| * separate wait for committed, a la wait-for-vsync in video mode |
| */ |
| |
| return 0; |
| } |
| |
| static void sde_encoder_phys_cmd_init_ops( |
| struct sde_encoder_phys_ops *ops) |
| { |
| ops->is_master = sde_encoder_phys_cmd_is_master; |
| ops->mode_set = sde_encoder_phys_cmd_mode_set; |
| ops->mode_fixup = sde_encoder_phys_cmd_mode_fixup; |
| ops->enable = sde_encoder_phys_cmd_enable; |
| ops->disable = sde_encoder_phys_cmd_disable; |
| ops->destroy = sde_encoder_phys_cmd_destroy; |
| ops->get_hw_resources = sde_encoder_phys_cmd_get_hw_resources; |
| ops->control_vblank_irq = sde_encoder_phys_cmd_control_vblank_irq; |
| ops->wait_for_commit_done = sde_encoder_phys_cmd_wait_for_commit_done; |
| ops->prepare_for_kickoff = sde_encoder_phys_cmd_prepare_for_kickoff; |
| ops->trigger_start = sde_encoder_helper_trigger_start; |
| ops->needs_single_flush = sde_encoder_phys_cmd_needs_single_flush; |
| ops->hw_reset = sde_encoder_helper_hw_reset; |
| } |
| |
| struct sde_encoder_phys *sde_encoder_phys_cmd_init( |
| struct sde_enc_phys_init_params *p) |
| { |
| struct sde_encoder_phys *phys_enc = NULL; |
| struct sde_encoder_phys_cmd *cmd_enc = NULL; |
| struct sde_hw_mdp *hw_mdp; |
| int i, ret = 0; |
| |
| SDE_DEBUG("intf %d\n", p->intf_idx - INTF_0); |
| |
| cmd_enc = kzalloc(sizeof(*cmd_enc), GFP_KERNEL); |
| if (!cmd_enc) { |
| ret = -ENOMEM; |
| SDE_ERROR("failed to allocate\n"); |
| goto fail; |
| } |
| phys_enc = &cmd_enc->base; |
| |
| hw_mdp = sde_rm_get_mdp(&p->sde_kms->rm); |
| if (IS_ERR_OR_NULL(hw_mdp)) { |
| ret = PTR_ERR(hw_mdp); |
| SDE_ERROR("failed to get mdptop\n"); |
| goto fail_mdp_init; |
| } |
| phys_enc->hw_mdptop = hw_mdp; |
| |
| cmd_enc->intf_idx = p->intf_idx; |
| phys_enc->intf_idx = p->intf_idx; |
| |
| sde_encoder_phys_cmd_init_ops(&phys_enc->ops); |
| phys_enc->parent = p->parent; |
| phys_enc->parent_ops = p->parent_ops; |
| phys_enc->sde_kms = p->sde_kms; |
| phys_enc->split_role = p->split_role; |
| phys_enc->intf_mode = INTF_MODE_CMD; |
| phys_enc->enc_spinlock = p->enc_spinlock; |
| cmd_enc->stream_sel = 0; |
| phys_enc->enable_state = SDE_ENC_DISABLED; |
| phys_enc->comp_type = p->comp_type; |
| for (i = 0; i < INTR_IDX_MAX; i++) |
| INIT_LIST_HEAD(&cmd_enc->irq_cb[i].list); |
| atomic_set(&phys_enc->vblank_refcount, 0); |
| atomic_set(&phys_enc->pending_kickoff_cnt, 0); |
| init_waitqueue_head(&phys_enc->pending_kickoff_wq); |
| |
| SDE_DEBUG_CMDENC(cmd_enc, "created\n"); |
| |
| return phys_enc; |
| |
| fail_mdp_init: |
| kfree(cmd_enc); |
| fail: |
| return ERR_PTR(ret); |
| } |