diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 667 |
1 files changed, 478 insertions, 189 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index bd3698bf0cf7..c0ed110a7d30 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -2,7 +2,7 @@ /* * Copyright (C) 2013 Red Hat * Copyright (c) 2014-2018, 2020-2021 The Linux Foundation. All rights reserved. - * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. * * Author: Rob Clark <robdclark@gmail.com> */ @@ -24,6 +24,7 @@ #include "dpu_hw_catalog.h" #include "dpu_hw_intf.h" #include "dpu_hw_ctl.h" +#include "dpu_hw_cwb.h" #include "dpu_hw_dspp.h" #include "dpu_hw_dsc.h" #include "dpu_hw_merge3d.h" @@ -58,8 +59,6 @@ #define IDLE_SHORT_TIMEOUT 1 -#define MAX_HDISPLAY_SPLIT 1080 - /* timeout in frames waiting for frame done */ #define DPU_ENCODER_FRAME_DONE_TIMEOUT_FRAMES 5 @@ -135,8 +134,12 @@ enum dpu_enc_rc_states { * @cur_slave: As above but for the slave encoder. * @hw_pp: Handle to the pingpong blocks used for the display. No. * pingpong blocks can be different than num_phys_encs. + * @hw_cwb: Handle to the CWB muxes used for concurrent writeback + * display. Number of CWB muxes can be different than + * num_phys_encs. * @hw_dsc: Handle to the DSC blocks used for the display. * @dsc_mask: Bitmask of used DSC blocks. + * @cwb_mask: Bitmask of used CWB muxes * @intfs_swapped: Whether or not the phys_enc interfaces have been swapped * for partial update right-only cases, such as pingpong * split where virtual pingpong does not generate IRQs @@ -179,9 +182,11 @@ struct dpu_encoder_virt { struct dpu_encoder_phys *cur_master; struct dpu_encoder_phys *cur_slave; struct dpu_hw_pingpong *hw_pp[MAX_CHANNELS_PER_ENC]; + struct dpu_hw_cwb *hw_cwb[MAX_CHANNELS_PER_ENC]; struct dpu_hw_dsc *hw_dsc[MAX_CHANNELS_PER_ENC]; unsigned int dsc_mask; + unsigned int cwb_mask; bool intfs_swapped; @@ -217,6 +222,10 @@ static u32 dither_matrix[DITHER_MATRIX_SZ] = { 15, 7, 13, 5, 3, 11, 1, 9, 12, 4, 14, 6, 0, 8, 2, 10 }; +/** + * dpu_encoder_get_drm_fmt - return DRM fourcc format + * @phys_enc: Pointer to physical encoder structure + */ u32 dpu_encoder_get_drm_fmt(struct dpu_encoder_phys *phys_enc) { struct drm_encoder *drm_enc; @@ -235,6 +244,11 @@ u32 dpu_encoder_get_drm_fmt(struct dpu_encoder_phys *phys_enc) return DRM_FORMAT_RGB888; } +/** + * dpu_encoder_needs_periph_flush - return true if physical encoder requires + * peripheral flush + * @phys_enc: Pointer to physical encoder structure + */ bool dpu_encoder_needs_periph_flush(struct dpu_encoder_phys *phys_enc) { struct drm_encoder *drm_enc; @@ -253,6 +267,10 @@ bool dpu_encoder_needs_periph_flush(struct dpu_encoder_phys *phys_enc) msm_dp_needs_periph_flush(priv->dp[disp_info->h_tile_instance[0]], mode); } +/** + * dpu_encoder_is_widebus_enabled - return bool value if widebus is enabled + * @drm_enc: Pointer to previously created drm encoder structure + */ bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc) { const struct dpu_encoder_virt *dpu_enc; @@ -272,6 +290,11 @@ bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc) return false; } +/** + * dpu_encoder_is_dsc_enabled - indicate whether dsc is enabled + * for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + */ bool dpu_encoder_is_dsc_enabled(const struct drm_encoder *drm_enc) { const struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); @@ -279,6 +302,12 @@ bool dpu_encoder_is_dsc_enabled(const struct drm_encoder *drm_enc) return dpu_enc->dsc ? true : false; } +/** + * dpu_encoder_get_crc_values_cnt - get number of physical encoders contained + * in virtual encoder that can collect CRC values + * @drm_enc: Pointer to previously created drm encoder structure + * Returns: Number of physical encoders for given drm encoder + */ int dpu_encoder_get_crc_values_cnt(const struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; @@ -297,6 +326,10 @@ int dpu_encoder_get_crc_values_cnt(const struct drm_encoder *drm_enc) return num_intf; } +/** + * dpu_encoder_setup_misr - enable misr calculations + * @drm_enc: Pointer to previously created drm encoder structure + */ void dpu_encoder_setup_misr(const struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; @@ -315,6 +348,13 @@ void dpu_encoder_setup_misr(const struct drm_encoder *drm_enc) } } +/** + * dpu_encoder_get_crc - get the crc value from interface blocks + * @drm_enc: Pointer to previously created drm encoder structure + * @crcs: array to fill with CRC data + * @pos: offset into the @crcs array + * Returns: 0 on success, error otherwise + */ int dpu_encoder_get_crc(const struct drm_encoder *drm_enc, u32 *crcs, int pos) { struct dpu_encoder_virt *dpu_enc; @@ -385,6 +425,12 @@ static char *dpu_encoder_helper_get_intf_type(enum dpu_intf_mode intf_mode) } } +/** + * dpu_encoder_helper_report_irq_timeout - utility to report error that irq has + * timed out, including reporting frame error event to crtc and debug dump + * @phys_enc: Pointer to physical encoder structure + * @intr_idx: Failing interrupt index + */ void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc, enum dpu_intr_idx intr_idx) { @@ -402,6 +448,15 @@ void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc, static int dpu_encoder_helper_wait_event_timeout(int32_t drm_id, u32 irq_idx, struct dpu_encoder_wait_info *info); +/** + * dpu_encoder_helper_wait_for_irq - utility to wait on an irq. + * note: will call dpu_encoder_helper_wait_for_irq on timeout + * @phys_enc: Pointer to physical encoder structure + * @irq_idx: IRQ index + * @func: IRQ callback to be called in case of timeout + * @wait_info: wait info struct + * @return: 0 or -ERROR + */ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, unsigned int irq_idx, void (*func)(void *arg), @@ -473,6 +528,10 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, return ret; } +/** + * dpu_encoder_get_vsync_count - get vsync count for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + */ int dpu_encoder_get_vsync_count(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); @@ -480,6 +539,10 @@ int dpu_encoder_get_vsync_count(struct drm_encoder *drm_enc) return phys ? atomic_read(&phys->vsync_cnt) : 0; } +/** + * dpu_encoder_get_linecount - get interface line count for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + */ int dpu_encoder_get_linecount(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; @@ -495,6 +558,13 @@ int dpu_encoder_get_linecount(struct drm_encoder *drm_enc) return linecount; } +/** + * dpu_encoder_helper_split_config - split display configuration helper function + * This helper function may be used by physical encoders to configure + * the split display related registers. + * @phys_enc: Pointer to physical encoder structure + * @interface: enum dpu_intf setting + */ void dpu_encoder_helper_split_config( struct dpu_encoder_phys *phys_enc, enum dpu_intf interface) @@ -544,6 +614,10 @@ void dpu_encoder_helper_split_config( } } +/** + * dpu_encoder_use_dsc_merge - returns true if the encoder uses DSC merge topology. + * @drm_enc: Pointer to previously created drm encoder structure + */ bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); @@ -553,13 +627,19 @@ bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc) if (dpu_enc->phys_encs[i]) intf_count++; - /* See dpu_encoder_get_topology, we only support 2:2:1 topology */ - if (dpu_enc->dsc) - num_dsc = 2; + for (i = 0; i < MAX_CHANNELS_PER_ENC; i++) + if (dpu_enc->hw_dsc[i]) + num_dsc++; return (num_dsc > 0) && (num_dsc > intf_count); } +/** + * dpu_encoder_get_dsc_config - get DSC config for the DPU encoder + * This helper function is used by physical encoder to get DSC config + * used for this encoder. + * @drm_enc: Pointer to encoder structure + */ struct drm_dsc_config *dpu_encoder_get_dsc_config(struct drm_encoder *drm_enc) { struct msm_drm_private *priv = drm_enc->dev->dev_private; @@ -572,130 +652,51 @@ struct drm_dsc_config *dpu_encoder_get_dsc_config(struct drm_encoder *drm_enc) return NULL; } -static struct msm_display_topology dpu_encoder_get_topology( - struct dpu_encoder_virt *dpu_enc, - struct dpu_kms *dpu_kms, - struct drm_display_mode *mode, - struct drm_crtc_state *crtc_state, - struct drm_dsc_config *dsc) +void dpu_encoder_update_topology(struct drm_encoder *drm_enc, + struct msm_display_topology *topology, + struct drm_atomic_state *state, + const struct drm_display_mode *adj_mode) { - struct msm_display_topology topology = {0}; - int i, intf_count = 0; + struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); + struct msm_drm_private *priv = dpu_enc->base.dev->dev_private; + struct msm_display_info *disp_info = &dpu_enc->disp_info; + struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); + struct drm_connector *connector; + struct drm_connector_state *conn_state; + struct drm_framebuffer *fb; + struct drm_dsc_config *dsc; + + int i; for (i = 0; i < MAX_PHYS_ENCODERS_PER_VIRTUAL; i++) if (dpu_enc->phys_encs[i]) - intf_count++; - - /* Datapath topology selection - * - * Dual display - * 2 LM, 2 INTF ( Split display using 2 interfaces) - * - * Single display - * 1 LM, 1 INTF - * 2 LM, 1 INTF (stream merge to support high resolution interfaces) - * - * Add dspps to the reservation requirements if ctm is requested - */ - if (intf_count == 2) - topology.num_lm = 2; - else if (!dpu_kms->catalog->caps->has_3d_merge) - topology.num_lm = 1; - else - topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1; + topology->num_intf++; - if (crtc_state->ctm) - topology.num_dspp = topology.num_lm; - - topology.num_intf = intf_count; + dsc = dpu_encoder_get_dsc_config(drm_enc); + /* We only support 2 DSC mode (with 2 LM and 1 INTF) */ if (dsc) { /* - * In case of Display Stream Compression (DSC), we would use - * 2 DSC encoders, 2 layer mixers and 1 interface - * this is power optimal and can drive up to (including) 4k - * screens + * Use 2 DSC encoders, 2 layer mixers and 1 or 2 interfaces + * when Display Stream Compression (DSC) is enabled, + * and when enough DSC blocks are available. + * This is power-optimal and can drive up to (including) 4k + * screens. */ - topology.num_dsc = 2; - topology.num_lm = 2; - topology.num_intf = 1; - } - - return topology; -} - -static void dpu_encoder_assign_crtc_resources(struct dpu_kms *dpu_kms, - struct drm_encoder *drm_enc, - struct dpu_global_state *global_state, - struct drm_crtc_state *crtc_state) -{ - struct dpu_crtc_state *cstate; - struct dpu_hw_blk *hw_ctl[MAX_CHANNELS_PER_ENC]; - struct dpu_hw_blk *hw_lm[MAX_CHANNELS_PER_ENC]; - struct dpu_hw_blk *hw_dspp[MAX_CHANNELS_PER_ENC]; - int num_lm, num_ctl, num_dspp, i; - - cstate = to_dpu_crtc_state(crtc_state); - - memset(cstate->mixers, 0, sizeof(cstate->mixers)); - - num_ctl = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_CTL, hw_ctl, ARRAY_SIZE(hw_ctl)); - num_lm = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_LM, hw_lm, ARRAY_SIZE(hw_lm)); - num_dspp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_DSPP, hw_dspp, - ARRAY_SIZE(hw_dspp)); - - for (i = 0; i < num_lm; i++) { - int ctl_idx = (i < num_ctl) ? i : (num_ctl-1); - - cstate->mixers[i].hw_lm = to_dpu_hw_mixer(hw_lm[i]); - cstate->mixers[i].lm_ctl = to_dpu_hw_ctl(hw_ctl[ctl_idx]); - cstate->mixers[i].hw_dspp = i < num_dspp ? to_dpu_hw_dspp(hw_dspp[i]) : NULL; - } - - cstate->num_mixers = num_lm; -} - -static int dpu_encoder_virt_atomic_check( - struct drm_encoder *drm_enc, - struct drm_crtc_state *crtc_state, - struct drm_connector_state *conn_state) -{ - struct dpu_encoder_virt *dpu_enc; - struct msm_drm_private *priv; - struct dpu_kms *dpu_kms; - struct drm_display_mode *adj_mode; - struct msm_display_topology topology; - struct msm_display_info *disp_info; - struct dpu_global_state *global_state; - struct drm_framebuffer *fb; - struct drm_dsc_config *dsc; - int ret = 0; - - if (!drm_enc || !crtc_state || !conn_state) { - DPU_ERROR("invalid arg(s), drm_enc %d, crtc/conn state %d/%d\n", - drm_enc != NULL, crtc_state != NULL, conn_state != NULL); - return -EINVAL; + WARN(topology->num_intf > 2, + "DSC topology cannot support more than 2 interfaces\n"); + if (topology->num_intf >= 2 || dpu_kms->catalog->dsc_count >= 2) + topology->num_dsc = 2; + else + topology->num_dsc = 1; } - dpu_enc = to_dpu_encoder_virt(drm_enc); - DPU_DEBUG_ENC(dpu_enc, "\n"); - - priv = drm_enc->dev->dev_private; - disp_info = &dpu_enc->disp_info; - dpu_kms = to_dpu_kms(priv->kms); - adj_mode = &crtc_state->adjusted_mode; - global_state = dpu_kms_get_global_state(crtc_state->state); - if (IS_ERR(global_state)) - return PTR_ERR(global_state); - - trace_dpu_enc_atomic_check(DRMID(drm_enc)); - - dsc = dpu_encoder_get_dsc_config(drm_enc); - - topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, adj_mode, crtc_state, dsc); + connector = drm_atomic_get_new_connector_for_encoder(state, drm_enc); + if (!connector) + return; + conn_state = drm_atomic_get_new_connector_state(state, connector); + if (!conn_state) + return; /* * Use CDM only for writeback or DP at the moment as other interfaces cannot handle it. @@ -706,34 +707,45 @@ static int dpu_encoder_virt_atomic_check( fb = conn_state->writeback_job->fb; if (fb && MSM_FORMAT_IS_YUV(msm_framebuffer_format(fb))) - topology.needs_cdm = true; + topology->num_cdm++; } else if (disp_info->intf_type == INTF_DP) { if (msm_dp_is_yuv_420_enabled(priv->dp[disp_info->h_tile_instance[0]], adj_mode)) - topology.needs_cdm = true; + topology->num_cdm++; } +} - if (topology.needs_cdm && !dpu_enc->cur_master->hw_cdm) - crtc_state->mode_changed = true; - else if (!topology.needs_cdm && dpu_enc->cur_master->hw_cdm) - crtc_state->mode_changed = true; - /* - * Release and Allocate resources on every modeset - * Dont allocate when active is false. - */ - if (drm_atomic_crtc_needs_modeset(crtc_state)) { - dpu_rm_release(global_state, drm_enc); +bool dpu_encoder_needs_modeset(struct drm_encoder *drm_enc, struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + struct drm_framebuffer *fb; + struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); - if (!crtc_state->active_changed || crtc_state->enable) - ret = dpu_rm_reserve(&dpu_kms->rm, global_state, - drm_enc, crtc_state, topology); - if (!ret) - dpu_encoder_assign_crtc_resources(dpu_kms, drm_enc, - global_state, crtc_state); - } + if (!drm_enc || !state) + return false; - trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags); + connector = drm_atomic_get_new_connector_for_encoder(state, drm_enc); + if (!connector) + return false; - return ret; + conn_state = drm_atomic_get_new_connector_state(state, connector); + + /** + * These checks are duplicated from dpu_encoder_update_topology() since + * CRTC and encoder don't hold topology information + */ + if (dpu_enc->disp_info.intf_type == INTF_WB && conn_state->writeback_job) { + fb = conn_state->writeback_job->fb; + if (fb && MSM_FORMAT_IS_YUV(msm_framebuffer_format(fb))) { + if (!dpu_enc->cur_master->hw_cdm) + return true; + } else { + if (dpu_enc->cur_master->hw_cdm) + return true; + } + } + + return false; } static void _dpu_encoder_update_vsync_source(struct dpu_encoder_virt *dpu_enc, @@ -1089,6 +1101,11 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc, return 0; } +/** + * dpu_encoder_prepare_wb_job - prepare writeback job for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + * @job: Pointer to the current drm writeback job + */ void dpu_encoder_prepare_wb_job(struct drm_encoder *drm_enc, struct drm_writeback_job *job) { @@ -1106,6 +1123,11 @@ void dpu_encoder_prepare_wb_job(struct drm_encoder *drm_enc, } } +/** + * dpu_encoder_cleanup_wb_job - cleanup writeback job for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + * @job: Pointer to the current drm writeback job + */ void dpu_encoder_cleanup_wb_job(struct drm_encoder *drm_enc, struct drm_writeback_job *job) { @@ -1134,8 +1156,12 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, struct dpu_hw_blk *hw_pp[MAX_CHANNELS_PER_ENC]; struct dpu_hw_blk *hw_ctl[MAX_CHANNELS_PER_ENC]; struct dpu_hw_blk *hw_dsc[MAX_CHANNELS_PER_ENC]; + struct dpu_hw_blk *hw_cwb[MAX_CHANNELS_PER_ENC]; int num_ctl, num_pp, num_dsc; + int num_cwb = 0; + bool is_cwb_encoder; unsigned int dsc_mask = 0; + unsigned int cwb_mask = 0; int i; if (!drm_enc) { @@ -1148,6 +1174,8 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, priv = drm_enc->dev->dev_private; dpu_kms = to_dpu_kms(priv->kms); + is_cwb_encoder = drm_crtc_in_clone_mode(crtc_state) && + dpu_enc->disp_info.intf_type == INTF_WB; global_state = dpu_kms_get_existing_global_state(dpu_kms); if (IS_ERR_OR_NULL(global_state)) { @@ -1158,18 +1186,38 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, trace_dpu_enc_mode_set(DRMID(drm_enc)); /* Query resource that have been reserved in atomic check step. */ - num_pp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_PINGPONG, hw_pp, - ARRAY_SIZE(hw_pp)); + if (is_cwb_encoder) { + num_pp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, + drm_enc->crtc, + DPU_HW_BLK_DCWB_PINGPONG, + hw_pp, ARRAY_SIZE(hw_pp)); + num_cwb = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, + drm_enc->crtc, + DPU_HW_BLK_CWB, + hw_cwb, ARRAY_SIZE(hw_cwb)); + } else { + num_pp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, + drm_enc->crtc, + DPU_HW_BLK_PINGPONG, hw_pp, + ARRAY_SIZE(hw_pp)); + } + + for (i = 0; i < num_cwb; i++) { + dpu_enc->hw_cwb[i] = to_dpu_hw_cwb(hw_cwb[i]); + cwb_mask |= BIT(dpu_enc->hw_cwb[i]->idx - CWB_0); + } + + dpu_enc->cwb_mask = cwb_mask; + num_ctl = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_CTL, hw_ctl, ARRAY_SIZE(hw_ctl)); + drm_enc->crtc, DPU_HW_BLK_CTL, hw_ctl, ARRAY_SIZE(hw_ctl)); for (i = 0; i < MAX_CHANNELS_PER_ENC; i++) dpu_enc->hw_pp[i] = i < num_pp ? to_dpu_hw_pingpong(hw_pp[i]) : NULL; num_dsc = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_DSC, + drm_enc->crtc, DPU_HW_BLK_DSC, hw_dsc, ARRAY_SIZE(hw_dsc)); for (i = 0; i < num_dsc; i++) { dpu_enc->hw_dsc[i] = to_dpu_hw_dsc(hw_dsc[i]); @@ -1183,7 +1231,7 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, struct dpu_hw_blk *hw_cdm = NULL; dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, - drm_enc->base.id, DPU_HW_BLK_CDM, + drm_enc->crtc, DPU_HW_BLK_CDM, &hw_cdm, 1); dpu_enc->cur_master->hw_cdm = hw_cdm ? to_dpu_hw_cdm(hw_cdm) : NULL; } @@ -1198,7 +1246,11 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, return; } - phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL; + /* Use first (and only) CTL if active CTLs are supported */ + if (num_ctl == 1) + phys->hw_ctl = to_dpu_hw_ctl(hw_ctl[0]); + else + phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL; if (!phys->hw_ctl) { DPU_ERROR_ENC(dpu_enc, "no ctl block assigned at idx: %d\n", i); @@ -1248,6 +1300,10 @@ static void _dpu_encoder_virt_enable_helper(struct drm_encoder *drm_enc) } } +/** + * dpu_encoder_virt_runtime_resume - pm runtime resume the encoder configs + * @drm_enc: encoder pointer + */ void dpu_encoder_virt_runtime_resume(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); @@ -1358,7 +1414,7 @@ static void dpu_encoder_virt_atomic_disable(struct drm_encoder *drm_enc, /* after phys waits for frame-done, should be no more frames pending */ if (atomic_xchg(&dpu_enc->frame_done_timeout_ms, 0)) { DPU_ERROR("enc%d timeout pending\n", drm_enc->base.id); - del_timer_sync(&dpu_enc->frame_done_timer); + timer_delete_sync(&dpu_enc->frame_done_timer); } dpu_encoder_resource_control(drm_enc, DPU_ENC_RC_EVENT_STOP); @@ -1389,6 +1445,12 @@ static struct dpu_hw_intf *dpu_encoder_get_intf(const struct dpu_mdss_cfg *catal return NULL; } +/** + * dpu_encoder_vblank_callback - Notify virtual encoder of vblank IRQ reception + * @drm_enc: Pointer to drm encoder structure + * @phy_enc: Pointer to physical encoder + * Note: This is called from IRQ handler context. + */ void dpu_encoder_vblank_callback(struct drm_encoder *drm_enc, struct dpu_encoder_phys *phy_enc) { @@ -1411,6 +1473,12 @@ void dpu_encoder_vblank_callback(struct drm_encoder *drm_enc, DPU_ATRACE_END("encoder_vblank_callback"); } +/** + * dpu_encoder_underrun_callback - Notify virtual encoder of underrun IRQ reception + * @drm_enc: Pointer to drm encoder structure + * @phy_enc: Pointer to physical encoder + * Note: This is called from IRQ handler context. + */ void dpu_encoder_underrun_callback(struct drm_encoder *drm_enc, struct dpu_encoder_phys *phy_enc) { @@ -1429,6 +1497,11 @@ void dpu_encoder_underrun_callback(struct drm_encoder *drm_enc, DPU_ATRACE_END("encoder_underrun_callback"); } +/** + * dpu_encoder_assign_crtc - Link the encoder to the crtc it's assigned to + * @drm_enc: encoder pointer + * @crtc: crtc pointer + */ void dpu_encoder_assign_crtc(struct drm_encoder *drm_enc, struct drm_crtc *crtc) { struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); @@ -1441,6 +1514,13 @@ void dpu_encoder_assign_crtc(struct drm_encoder *drm_enc, struct drm_crtc *crtc) spin_unlock_irqrestore(&dpu_enc->enc_spinlock, lock_flags); } +/** + * dpu_encoder_toggle_vblank_for_crtc - Toggles vblank interrupts on or off if + * the encoder is assigned to the given crtc + * @drm_enc: encoder pointer + * @crtc: crtc pointer + * @enable: true if vblank should be enabled + */ void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *drm_enc, struct drm_crtc *crtc, bool enable) { @@ -1465,6 +1545,13 @@ void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *drm_enc, } } +/** + * dpu_encoder_frame_done_callback - Notify virtual encoder that this phys + * encoder completes last request frame + * @drm_enc: Pointer to drm encoder structure + * @ready_phys: Pointer to physical encoder + * @event: Event to process + */ void dpu_encoder_frame_done_callback( struct drm_encoder *drm_enc, struct dpu_encoder_phys *ready_phys, u32 event) @@ -1499,7 +1586,7 @@ void dpu_encoder_frame_done_callback( if (!dpu_enc->frame_busy_mask[0]) { atomic_set(&dpu_enc->frame_done_timeout_ms, 0); - del_timer(&dpu_enc->frame_done_timer); + timer_delete(&dpu_enc->frame_done_timer); dpu_encoder_resource_control(drm_enc, DPU_ENC_RC_EVENT_FRAME_DONE); @@ -1534,6 +1621,7 @@ static void dpu_encoder_off_work(struct work_struct *work) static void _dpu_encoder_trigger_flush(struct drm_encoder *drm_enc, struct dpu_encoder_phys *phys, uint32_t extra_flush_bits) { + struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc); struct dpu_hw_ctl *ctl; int pending_kickoff_cnt; u32 ret = UINT_MAX; @@ -1551,6 +1639,15 @@ static void _dpu_encoder_trigger_flush(struct drm_encoder *drm_enc, pending_kickoff_cnt = dpu_encoder_phys_inc_pending(phys); + /* Return early if encoder is writeback and in clone mode */ + if (drm_enc->encoder_type == DRM_MODE_ENCODER_VIRTUAL && + dpu_enc->cwb_mask) { + DPU_DEBUG("encoder %d skip flush for concurrent writeback encoder\n", + DRMID(drm_enc)); + return; + } + + if (extra_flush_bits && ctl->ops.update_pending_flush) ctl->ops.update_pending_flush(ctl, extra_flush_bits); @@ -1573,6 +1670,8 @@ static void _dpu_encoder_trigger_flush(struct drm_encoder *drm_enc, */ static void _dpu_encoder_trigger_start(struct dpu_encoder_phys *phys) { + struct dpu_encoder_virt *dpu_enc; + if (!phys) { DPU_ERROR("invalid argument(s)\n"); return; @@ -1583,10 +1682,24 @@ static void _dpu_encoder_trigger_start(struct dpu_encoder_phys *phys) return; } + dpu_enc = to_dpu_encoder_virt(phys->parent); + + if (phys->parent->encoder_type == DRM_MODE_ENCODER_VIRTUAL && + dpu_enc->cwb_mask) { + DPU_DEBUG("encoder %d CWB enabled, skipping\n", DRMID(phys->parent)); + return; + } + if (phys->ops.trigger_start && phys->enable_state != DPU_ENC_DISABLED) phys->ops.trigger_start(phys); } +/** + * dpu_encoder_helper_trigger_start - control start helper function + * This helper function may be optionally specified by physical + * encoders if they require ctl_start triggering. + * @phys_enc: Pointer to physical encoder structure + */ void dpu_encoder_helper_trigger_start(struct dpu_encoder_phys *phys_enc) { struct dpu_hw_ctl *ctl; @@ -1708,6 +1821,11 @@ static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc) spin_unlock_irqrestore(&dpu_enc->enc_spinlock, lock_flags); } +/** + * dpu_encoder_trigger_kickoff_pending - Clear the flush bits from previous + * kickoff and trigger the ctl prepare progress for command mode display. + * @drm_enc: encoder pointer + */ void dpu_encoder_trigger_kickoff_pending(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; @@ -1784,6 +1902,11 @@ static u32 _dpu_encoder_calculate_linetime(struct dpu_encoder_virt *dpu_enc, return line_time; } +/** + * dpu_encoder_vsync_time - get the time of the next vsync + * @drm_enc: encoder pointer + * @wakeup_time: pointer to ktime_t to write the vsync time to + */ int dpu_encoder_vsync_time(struct drm_encoder *drm_enc, ktime_t *wakeup_time) { struct drm_display_mode *mode; @@ -1884,7 +2007,6 @@ static void dpu_encoder_dsc_pipe_cfg(struct dpu_hw_ctl *ctl, static void dpu_encoder_prep_dsc(struct dpu_encoder_virt *dpu_enc, struct drm_dsc_config *dsc) { - /* coding only for 2LM, 2enc, 1 dsc config */ struct dpu_encoder_phys *enc_master = dpu_enc->cur_master; struct dpu_hw_ctl *ctl = enc_master->hw_ctl; struct dpu_hw_dsc *hw_dsc[MAX_CHANNELS_PER_ENC]; @@ -1894,22 +2016,24 @@ static void dpu_encoder_prep_dsc(struct dpu_encoder_virt *dpu_enc, int dsc_common_mode; int pic_width; u32 initial_lines; + int num_dsc = 0; int i; for (i = 0; i < MAX_CHANNELS_PER_ENC; i++) { hw_pp[i] = dpu_enc->hw_pp[i]; hw_dsc[i] = dpu_enc->hw_dsc[i]; - if (!hw_pp[i] || !hw_dsc[i]) { - DPU_ERROR_ENC(dpu_enc, "invalid params for DSC\n"); - return; - } + if (!hw_pp[i] || !hw_dsc[i]) + break; + + num_dsc++; } - dsc_common_mode = 0; pic_width = dsc->pic_width; - dsc_common_mode = DSC_MODE_SPLIT_PANEL; + dsc_common_mode = 0; + if (num_dsc > 1) + dsc_common_mode |= DSC_MODE_SPLIT_PANEL; if (dpu_encoder_use_dsc_merge(enc_master->parent)) dsc_common_mode |= DSC_MODE_MULTIPLEX; if (enc_master->intf_mode == INTF_MODE_VIDEO) @@ -1918,18 +2042,21 @@ static void dpu_encoder_prep_dsc(struct dpu_encoder_virt *dpu_enc, this_frame_slices = pic_width / dsc->slice_width; intf_ip_w = this_frame_slices * dsc->slice_width; - /* - * dsc merge case: when using 2 encoders for the same stream, - * no. of slices need to be same on both the encoders. - */ - enc_ip_w = intf_ip_w / 2; + enc_ip_w = intf_ip_w / num_dsc; initial_lines = dpu_encoder_dsc_initial_line_calc(dsc, enc_ip_w); - for (i = 0; i < MAX_CHANNELS_PER_ENC; i++) + for (i = 0; i < num_dsc; i++) dpu_encoder_dsc_pipe_cfg(ctl, hw_dsc[i], hw_pp[i], dsc, dsc_common_mode, initial_lines); } +/** + * dpu_encoder_prepare_for_kickoff - schedule double buffer flip of the ctl + * path (i.e. ctl flush and start) at next appropriate time. + * Immediately: if no previous commit is outstanding. + * Delayed: Block until next trigger can be issued. + * @drm_enc: encoder pointer + */ void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; @@ -1966,6 +2093,10 @@ void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc) dpu_encoder_prep_dsc(dpu_enc, dpu_enc->dsc); } +/** + * dpu_encoder_is_valid_for_commit - check if encode has valid parameters for commit. + * @drm_enc: Pointer to drm encoder structure + */ bool dpu_encoder_is_valid_for_commit(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; @@ -1987,18 +2118,16 @@ bool dpu_encoder_is_valid_for_commit(struct drm_encoder *drm_enc) return true; } -void dpu_encoder_kickoff(struct drm_encoder *drm_enc) +/** + * dpu_encoder_start_frame_done_timer - Start the encoder frame done timer + * @drm_enc: Pointer to drm encoder structure + */ +void dpu_encoder_start_frame_done_timer(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc; - struct dpu_encoder_phys *phys; unsigned long timeout_ms; - unsigned int i; - DPU_ATRACE_BEGIN("encoder_kickoff"); dpu_enc = to_dpu_encoder_virt(drm_enc); - - trace_dpu_enc_kickoff(DRMID(drm_enc)); - timeout_ms = DPU_ENCODER_FRAME_DONE_TIMEOUT_FRAMES * 1000 / drm_mode_vrefresh(&drm_enc->crtc->state->adjusted_mode); @@ -2006,6 +2135,24 @@ void dpu_encoder_kickoff(struct drm_encoder *drm_enc) mod_timer(&dpu_enc->frame_done_timer, jiffies + msecs_to_jiffies(timeout_ms)); +} + +/** + * dpu_encoder_kickoff - trigger a double buffer flip of the ctl path + * (i.e. ctl flush and start) immediately. + * @drm_enc: encoder pointer + */ +void dpu_encoder_kickoff(struct drm_encoder *drm_enc) +{ + struct dpu_encoder_virt *dpu_enc; + struct dpu_encoder_phys *phys; + unsigned int i; + + DPU_ATRACE_BEGIN("encoder_kickoff"); + dpu_enc = to_dpu_encoder_virt(drm_enc); + + trace_dpu_enc_kickoff(DRMID(drm_enc)); + /* All phys encs are ready to go, trigger the kickoff */ _dpu_encoder_kickoff_phys(dpu_enc); @@ -2031,22 +2178,25 @@ static void dpu_encoder_helper_reset_mixers(struct dpu_encoder_phys *phys_enc) memset(&mixer, 0, sizeof(mixer)); /* reset all mixers for this encoder */ - if (phys_enc->hw_ctl->ops.clear_all_blendstages) - phys_enc->hw_ctl->ops.clear_all_blendstages(phys_enc->hw_ctl); + if (ctl->ops.clear_all_blendstages) + ctl->ops.clear_all_blendstages(ctl); global_state = dpu_kms_get_existing_global_state(phys_enc->dpu_kms); num_lm = dpu_rm_get_assigned_resources(&phys_enc->dpu_kms->rm, global_state, - phys_enc->parent->base.id, DPU_HW_BLK_LM, hw_lm, ARRAY_SIZE(hw_lm)); + phys_enc->parent->crtc, DPU_HW_BLK_LM, hw_lm, ARRAY_SIZE(hw_lm)); for (i = 0; i < num_lm; i++) { hw_mixer[i] = to_dpu_hw_mixer(hw_lm[i]); - if (phys_enc->hw_ctl->ops.update_pending_flush_mixer) - phys_enc->hw_ctl->ops.update_pending_flush_mixer(ctl, hw_mixer[i]->idx); + if (ctl->ops.update_pending_flush_mixer) + ctl->ops.update_pending_flush_mixer(ctl, hw_mixer[i]->idx); /* clear all blendstages */ - if (phys_enc->hw_ctl->ops.setup_blendstage) - phys_enc->hw_ctl->ops.setup_blendstage(ctl, hw_mixer[i]->idx, NULL); + if (ctl->ops.setup_blendstage) + ctl->ops.setup_blendstage(ctl, hw_mixer[i]->idx, NULL); + + if (ctl->ops.set_active_fetch_pipes) + ctl->ops.set_active_fetch_pipes(ctl, NULL); } } @@ -2085,6 +2235,10 @@ static void dpu_encoder_unprep_dsc(struct dpu_encoder_virt *dpu_enc) } } +/** + * dpu_encoder_helper_phys_cleanup - helper to cleanup dpu pipeline + * @phys_enc: Pointer to physical encoder structure + */ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) { struct dpu_hw_ctl *ctl = phys_enc->hw_ctl; @@ -2094,7 +2248,7 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) dpu_enc = to_dpu_encoder_virt(phys_enc->parent); - phys_enc->hw_ctl->ops.reset(ctl); + ctl->ops.reset(ctl); dpu_encoder_helper_reset_mixers(phys_enc); @@ -2109,8 +2263,8 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) phys_enc->hw_wb->ops.bind_pingpong_blk(phys_enc->hw_wb, PINGPONG_NONE); /* mark WB flush as pending */ - if (phys_enc->hw_ctl->ops.update_pending_flush_wb) - phys_enc->hw_ctl->ops.update_pending_flush_wb(ctl, phys_enc->hw_wb->idx); + if (ctl->ops.update_pending_flush_wb) + ctl->ops.update_pending_flush_wb(ctl, phys_enc->hw_wb->idx); } else { for (i = 0; i < dpu_enc->num_phys_encs; i++) { if (dpu_enc->phys_encs[i] && phys_enc->hw_intf->ops.bind_pingpong_blk) @@ -2119,18 +2273,24 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) PINGPONG_NONE); /* mark INTF flush as pending */ - if (phys_enc->hw_ctl->ops.update_pending_flush_intf) - phys_enc->hw_ctl->ops.update_pending_flush_intf(phys_enc->hw_ctl, + if (ctl->ops.update_pending_flush_intf) + ctl->ops.update_pending_flush_intf(ctl, dpu_enc->phys_encs[i]->hw_intf->idx); } } + if (phys_enc->hw_pp && phys_enc->hw_pp->ops.setup_dither) + phys_enc->hw_pp->ops.setup_dither(phys_enc->hw_pp, NULL); + + if (dpu_enc->cwb_mask) + dpu_encoder_helper_phys_setup_cwb(phys_enc, false); + /* reset the merge 3D HW block */ if (phys_enc->hw_pp && phys_enc->hw_pp->merge_3d) { phys_enc->hw_pp->merge_3d->ops.setup_3d_mode(phys_enc->hw_pp->merge_3d, BLEND_3D_NONE); - if (phys_enc->hw_ctl->ops.update_pending_flush_merge_3d) - phys_enc->hw_ctl->ops.update_pending_flush_merge_3d(ctl, + if (ctl->ops.update_pending_flush_merge_3d) + ctl->ops.update_pending_flush_merge_3d(ctl, phys_enc->hw_pp->merge_3d->idx); } @@ -2138,9 +2298,9 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) if (phys_enc->hw_cdm->ops.bind_pingpong_blk && phys_enc->hw_pp) phys_enc->hw_cdm->ops.bind_pingpong_blk(phys_enc->hw_cdm, PINGPONG_NONE); - if (phys_enc->hw_ctl->ops.update_pending_flush_cdm) - phys_enc->hw_ctl->ops.update_pending_flush_cdm(phys_enc->hw_ctl, - phys_enc->hw_cdm->idx); + if (ctl->ops.update_pending_flush_cdm) + ctl->ops.update_pending_flush_cdm(ctl, + phys_enc->hw_cdm->idx); } if (dpu_enc->dsc) { @@ -2151,6 +2311,7 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) intf_cfg.stream_sel = 0; /* Don't care value for video mode */ intf_cfg.mode_3d = dpu_encoder_helper_get_3d_blend_mode(phys_enc); intf_cfg.dsc = dpu_encoder_helper_get_dsc(phys_enc); + intf_cfg.cwb = dpu_enc->cwb_mask; if (phys_enc->hw_intf) intf_cfg.intf = phys_enc->hw_intf->idx; @@ -2168,6 +2329,74 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) ctl->ops.clear_pending_flush(ctl); } +void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, + bool enable) +{ + struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(phys_enc->parent); + struct dpu_hw_cwb *hw_cwb; + struct dpu_hw_ctl *hw_ctl; + struct dpu_hw_cwb_setup_cfg cwb_cfg; + + struct dpu_kms *dpu_kms; + struct dpu_global_state *global_state; + struct dpu_hw_blk *rt_pp_list[MAX_CHANNELS_PER_ENC]; + int num_pp; + + if (!phys_enc->hw_wb) + return; + + hw_ctl = phys_enc->hw_ctl; + + if (!phys_enc->hw_ctl) { + DPU_DEBUG("[wb:%d] no ctl assigned\n", + phys_enc->hw_wb->idx - WB_0); + return; + } + + dpu_kms = phys_enc->dpu_kms; + global_state = dpu_kms_get_existing_global_state(dpu_kms); + num_pp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, + phys_enc->parent->crtc, + DPU_HW_BLK_PINGPONG, rt_pp_list, + ARRAY_SIZE(rt_pp_list)); + + if (num_pp == 0 || num_pp > MAX_CHANNELS_PER_ENC) { + DPU_DEBUG_ENC(dpu_enc, "invalid num_pp %d\n", num_pp); + return; + } + + /* + * The CWB mux supports using LM or DSPP as tap points. For now, + * always use LM tap point + */ + cwb_cfg.input = INPUT_MODE_LM_OUT; + + for (int i = 0; i < MAX_CHANNELS_PER_ENC; i++) { + hw_cwb = dpu_enc->hw_cwb[i]; + if (!hw_cwb) + continue; + + if (enable) { + struct dpu_hw_pingpong *hw_pp = + to_dpu_hw_pingpong(rt_pp_list[i]); + cwb_cfg.pp_idx = hw_pp->idx; + } else { + cwb_cfg.pp_idx = PINGPONG_NONE; + } + + hw_cwb->ops.config_cwb(hw_cwb, &cwb_cfg); + + if (hw_ctl->ops.update_pending_flush_cwb) + hw_ctl->ops.update_pending_flush_cwb(hw_ctl, hw_cwb->idx); + } +} + +/** + * dpu_encoder_helper_phys_setup_cdm - setup chroma down sampling block + * @phys_enc: Pointer to physical encoder + * @dpu_fmt: Pinter to the format description + * @output_type: HDMI/WB + */ void dpu_encoder_helper_phys_setup_cdm(struct dpu_encoder_phys *phys_enc, const struct msm_format *dpu_fmt, u32 output_type) @@ -2348,6 +2577,38 @@ static int dpu_encoder_virt_add_phys_encs( return 0; } +/** + * dpu_encoder_get_clones - Calculate the possible_clones for DPU encoder + * @drm_enc: DRM encoder pointer + * Returns: possible_clones mask + */ +uint32_t dpu_encoder_get_clones(struct drm_encoder *drm_enc) +{ + struct drm_encoder *curr; + int type = drm_enc->encoder_type; + uint32_t clone_mask = drm_encoder_mask(drm_enc); + + /* + * Set writeback as possible clones of real-time DSI encoders and vice + * versa + * + * Writeback encoders can't be clones of each other and DSI + * encoders can't be clones of each other. + * + * TODO: Add DP encoders as valid possible clones for writeback encoders + * (and vice versa) once concurrent writeback has been validated for DP + */ + drm_for_each_encoder(curr, drm_enc->dev) { + if ((type == DRM_MODE_ENCODER_VIRTUAL && + curr->encoder_type == DRM_MODE_ENCODER_DSI) || + (type == DRM_MODE_ENCODER_DSI && + curr->encoder_type == DRM_MODE_ENCODER_VIRTUAL)) + clone_mask |= drm_encoder_mask(curr); + } + + return clone_mask; +} + static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc, struct dpu_kms *dpu_kms, struct msm_display_info *disp_info) @@ -2432,8 +2693,8 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc, static void dpu_encoder_frame_done_timeout(struct timer_list *t) { - struct dpu_encoder_virt *dpu_enc = from_timer(dpu_enc, t, - frame_done_timer); + struct dpu_encoder_virt *dpu_enc = timer_container_of(dpu_enc, t, + frame_done_timer); struct drm_encoder *drm_enc = &dpu_enc->base; u32 event; @@ -2465,13 +2726,19 @@ static const struct drm_encoder_helper_funcs dpu_encoder_helper_funcs = { .atomic_mode_set = dpu_encoder_virt_atomic_mode_set, .atomic_disable = dpu_encoder_virt_atomic_disable, .atomic_enable = dpu_encoder_virt_atomic_enable, - .atomic_check = dpu_encoder_virt_atomic_check, }; static const struct drm_encoder_funcs dpu_encoder_funcs = { .debugfs_init = dpu_encoder_debugfs_init, }; +/** + * dpu_encoder_init - initialize virtual encoder object + * @dev: Pointer to drm device structure + * @drm_enc_mode: corresponding DRM_MODE_ENCODER_* constant + * @disp_info: Pointer to display information structure + * Returns: Pointer to newly created drm encoder + */ struct drm_encoder *dpu_encoder_init(struct drm_device *dev, int drm_enc_mode, struct msm_display_info *disp_info) @@ -2593,6 +2860,10 @@ int dpu_encoder_wait_for_tx_complete(struct drm_encoder *drm_enc) return ret; } +/** + * dpu_encoder_get_intf_mode - get interface mode of the given encoder + * @encoder: Pointer to drm encoder object + */ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder) { struct dpu_encoder_virt *dpu_enc = NULL; @@ -2612,6 +2883,24 @@ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder) return INTF_MODE_NONE; } +/** + * dpu_encoder_helper_get_cwb_mask - get CWB blocks mask for the DPU encoder + * @phys_enc: Pointer to physical encoder structure + */ +unsigned int dpu_encoder_helper_get_cwb_mask(struct dpu_encoder_phys *phys_enc) +{ + struct drm_encoder *encoder = phys_enc->parent; + struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(encoder); + + return dpu_enc->cwb_mask; +} + +/** + * dpu_encoder_helper_get_dsc - get DSC blocks mask for the DPU encoder + * This helper function is used by physical encoder to get DSC blocks mask + * used for this encoder. + * @phys_enc: Pointer to physical encoder structure + */ unsigned int dpu_encoder_helper_get_dsc(struct dpu_encoder_phys *phys_enc) { struct drm_encoder *encoder = phys_enc->parent; |