| /* |
| * Copyright (c) 2014-2018 The Linux Foundation. All rights reserved. |
| * Copyright (C) 2013 Red Hat |
| * Author: Rob Clark <robdclark@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License 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. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__ |
| #include <linux/sort.h> |
| #include <linux/debugfs.h> |
| #include <linux/ktime.h> |
| #include <drm/drm_mode.h> |
| #include <drm/drm_crtc.h> |
| #include <drm/drm_crtc_helper.h> |
| #include <drm/drm_flip_work.h> |
| #include <drm/drm_rect.h> |
| |
| #include "dpu_kms.h" |
| #include "dpu_hw_lm.h" |
| #include "dpu_hw_ctl.h" |
| #include "dpu_crtc.h" |
| #include "dpu_plane.h" |
| #include "dpu_encoder.h" |
| #include "dpu_vbif.h" |
| #include "dpu_power_handle.h" |
| #include "dpu_core_perf.h" |
| #include "dpu_trace.h" |
| |
| #define DPU_DRM_BLEND_OP_NOT_DEFINED 0 |
| #define DPU_DRM_BLEND_OP_OPAQUE 1 |
| #define DPU_DRM_BLEND_OP_PREMULTIPLIED 2 |
| #define DPU_DRM_BLEND_OP_COVERAGE 3 |
| #define DPU_DRM_BLEND_OP_MAX 4 |
| |
| /* layer mixer index on dpu_crtc */ |
| #define LEFT_MIXER 0 |
| #define RIGHT_MIXER 1 |
| |
| #define MISR_BUFF_SIZE 256 |
| |
| static inline struct dpu_kms *_dpu_crtc_get_kms(struct drm_crtc *crtc) |
| { |
| struct msm_drm_private *priv; |
| |
| if (!crtc || !crtc->dev || !crtc->dev->dev_private) { |
| DPU_ERROR("invalid crtc\n"); |
| return NULL; |
| } |
| priv = crtc->dev->dev_private; |
| if (!priv || !priv->kms) { |
| DPU_ERROR("invalid kms\n"); |
| return NULL; |
| } |
| |
| return to_dpu_kms(priv->kms); |
| } |
| |
| static inline int _dpu_crtc_power_enable(struct dpu_crtc *dpu_crtc, bool enable) |
| { |
| struct drm_crtc *crtc; |
| struct msm_drm_private *priv; |
| struct dpu_kms *dpu_kms; |
| |
| if (!dpu_crtc) { |
| DPU_ERROR("invalid dpu crtc\n"); |
| return -EINVAL; |
| } |
| |
| crtc = &dpu_crtc->base; |
| if (!crtc->dev || !crtc->dev->dev_private) { |
| DPU_ERROR("invalid drm device\n"); |
| return -EINVAL; |
| } |
| |
| priv = crtc->dev->dev_private; |
| if (!priv->kms) { |
| DPU_ERROR("invalid kms\n"); |
| return -EINVAL; |
| } |
| |
| dpu_kms = to_dpu_kms(priv->kms); |
| |
| if (enable) |
| pm_runtime_get_sync(&dpu_kms->pdev->dev); |
| else |
| pm_runtime_put_sync(&dpu_kms->pdev->dev); |
| |
| return 0; |
| } |
| |
| /** |
| * _dpu_crtc_rp_to_crtc - get crtc from resource pool object |
| * @rp: Pointer to resource pool |
| * return: Pointer to drm crtc if success; null otherwise |
| */ |
| static struct drm_crtc *_dpu_crtc_rp_to_crtc(struct dpu_crtc_respool *rp) |
| { |
| if (!rp) |
| return NULL; |
| |
| return container_of(rp, struct dpu_crtc_state, rp)->base.crtc; |
| } |
| |
| /** |
| * _dpu_crtc_rp_reclaim - reclaim unused, or all if forced, resources in pool |
| * @rp: Pointer to resource pool |
| * @force: True to reclaim all resources; otherwise, reclaim only unused ones |
| * return: None |
| */ |
| static void _dpu_crtc_rp_reclaim(struct dpu_crtc_respool *rp, bool force) |
| { |
| struct dpu_crtc_res *res, *next; |
| struct drm_crtc *crtc; |
| |
| crtc = _dpu_crtc_rp_to_crtc(rp); |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| |
| DPU_DEBUG("crtc%d.%u %s\n", crtc->base.id, rp->sequence_id, |
| force ? "destroy" : "free_unused"); |
| |
| list_for_each_entry_safe(res, next, &rp->res_list, list) { |
| if (!force && !(res->flags & DPU_CRTC_RES_FLAG_FREE)) |
| continue; |
| DPU_DEBUG("crtc%d.%u reclaim res:0x%x/0x%llx/%pK/%d\n", |
| crtc->base.id, rp->sequence_id, |
| res->type, res->tag, res->val, |
| atomic_read(&res->refcount)); |
| list_del(&res->list); |
| if (res->ops.put) |
| res->ops.put(res->val); |
| kfree(res); |
| } |
| } |
| |
| /** |
| * _dpu_crtc_rp_free_unused - free unused resource in pool |
| * @rp: Pointer to resource pool |
| * return: none |
| */ |
| static void _dpu_crtc_rp_free_unused(struct dpu_crtc_respool *rp) |
| { |
| mutex_lock(rp->rp_lock); |
| _dpu_crtc_rp_reclaim(rp, false); |
| mutex_unlock(rp->rp_lock); |
| } |
| |
| /** |
| * _dpu_crtc_rp_destroy - destroy resource pool |
| * @rp: Pointer to resource pool |
| * return: None |
| */ |
| static void _dpu_crtc_rp_destroy(struct dpu_crtc_respool *rp) |
| { |
| mutex_lock(rp->rp_lock); |
| list_del_init(&rp->rp_list); |
| _dpu_crtc_rp_reclaim(rp, true); |
| mutex_unlock(rp->rp_lock); |
| } |
| |
| /** |
| * _dpu_crtc_hw_blk_get - get callback for hardware block |
| * @val: Resource handle |
| * @type: Resource type |
| * @tag: Search tag for given resource |
| * return: Resource handle |
| */ |
| static void *_dpu_crtc_hw_blk_get(void *val, u32 type, u64 tag) |
| { |
| DPU_DEBUG("res:%d/0x%llx/%pK\n", type, tag, val); |
| return dpu_hw_blk_get(val, type, tag); |
| } |
| |
| /** |
| * _dpu_crtc_hw_blk_put - put callback for hardware block |
| * @val: Resource handle |
| * return: None |
| */ |
| static void _dpu_crtc_hw_blk_put(void *val) |
| { |
| DPU_DEBUG("res://%pK\n", val); |
| dpu_hw_blk_put(val); |
| } |
| |
| /** |
| * _dpu_crtc_rp_duplicate - duplicate resource pool and reset reference count |
| * @rp: Pointer to original resource pool |
| * @dup_rp: Pointer to duplicated resource pool |
| * return: None |
| */ |
| static void _dpu_crtc_rp_duplicate(struct dpu_crtc_respool *rp, |
| struct dpu_crtc_respool *dup_rp) |
| { |
| struct dpu_crtc_res *res, *dup_res; |
| struct drm_crtc *crtc; |
| |
| if (!rp || !dup_rp || !rp->rp_head) { |
| DPU_ERROR("invalid resource pool\n"); |
| return; |
| } |
| |
| crtc = _dpu_crtc_rp_to_crtc(rp); |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| |
| DPU_DEBUG("crtc%d.%u duplicate\n", crtc->base.id, rp->sequence_id); |
| |
| mutex_lock(rp->rp_lock); |
| dup_rp->sequence_id = rp->sequence_id + 1; |
| INIT_LIST_HEAD(&dup_rp->res_list); |
| dup_rp->ops = rp->ops; |
| list_for_each_entry(res, &rp->res_list, list) { |
| dup_res = kzalloc(sizeof(struct dpu_crtc_res), GFP_KERNEL); |
| if (!dup_res) { |
| mutex_unlock(rp->rp_lock); |
| return; |
| } |
| INIT_LIST_HEAD(&dup_res->list); |
| atomic_set(&dup_res->refcount, 0); |
| dup_res->type = res->type; |
| dup_res->tag = res->tag; |
| dup_res->val = res->val; |
| dup_res->ops = res->ops; |
| dup_res->flags = DPU_CRTC_RES_FLAG_FREE; |
| DPU_DEBUG("crtc%d.%u dup res:0x%x/0x%llx/%pK/%d\n", |
| crtc->base.id, dup_rp->sequence_id, |
| dup_res->type, dup_res->tag, dup_res->val, |
| atomic_read(&dup_res->refcount)); |
| list_add_tail(&dup_res->list, &dup_rp->res_list); |
| if (dup_res->ops.get) |
| dup_res->ops.get(dup_res->val, 0, -1); |
| } |
| |
| dup_rp->rp_lock = rp->rp_lock; |
| dup_rp->rp_head = rp->rp_head; |
| INIT_LIST_HEAD(&dup_rp->rp_list); |
| list_add_tail(&dup_rp->rp_list, rp->rp_head); |
| mutex_unlock(rp->rp_lock); |
| } |
| |
| /** |
| * _dpu_crtc_rp_reset - reset resource pool after allocation |
| * @rp: Pointer to original resource pool |
| * @rp_lock: Pointer to serialization resource pool lock |
| * @rp_head: Pointer to crtc resource pool head |
| * return: None |
| */ |
| static void _dpu_crtc_rp_reset(struct dpu_crtc_respool *rp, |
| struct mutex *rp_lock, struct list_head *rp_head) |
| { |
| if (!rp || !rp_lock || !rp_head) { |
| DPU_ERROR("invalid resource pool\n"); |
| return; |
| } |
| |
| mutex_lock(rp_lock); |
| rp->rp_lock = rp_lock; |
| rp->rp_head = rp_head; |
| INIT_LIST_HEAD(&rp->rp_list); |
| rp->sequence_id = 0; |
| INIT_LIST_HEAD(&rp->res_list); |
| rp->ops.get = _dpu_crtc_hw_blk_get; |
| rp->ops.put = _dpu_crtc_hw_blk_put; |
| list_add_tail(&rp->rp_list, rp->rp_head); |
| mutex_unlock(rp_lock); |
| } |
| |
| static void dpu_crtc_destroy(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); |
| |
| DPU_DEBUG("\n"); |
| |
| if (!crtc) |
| return; |
| |
| dpu_crtc->phandle = NULL; |
| |
| drm_crtc_cleanup(crtc); |
| mutex_destroy(&dpu_crtc->crtc_lock); |
| kfree(dpu_crtc); |
| } |
| |
| static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer, |
| struct dpu_plane_state *pstate) |
| { |
| struct dpu_hw_mixer *lm = mixer->hw_lm; |
| |
| /* default to opaque blending */ |
| lm->ops.setup_blend_config(lm, pstate->stage, 0XFF, 0, |
| DPU_BLEND_FG_ALPHA_FG_CONST | |
| DPU_BLEND_BG_ALPHA_BG_CONST); |
| } |
| |
| static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *crtc_state; |
| int lm_idx, lm_horiz_position; |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| crtc_state = to_dpu_crtc_state(crtc->state); |
| |
| lm_horiz_position = 0; |
| for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) { |
| const struct drm_rect *lm_roi = &crtc_state->lm_bounds[lm_idx]; |
| struct dpu_hw_mixer *hw_lm = dpu_crtc->mixers[lm_idx].hw_lm; |
| struct dpu_hw_mixer_cfg cfg; |
| |
| if (!lm_roi || !drm_rect_visible(lm_roi)) |
| continue; |
| |
| cfg.out_width = drm_rect_width(lm_roi); |
| cfg.out_height = drm_rect_height(lm_roi); |
| cfg.right_mixer = lm_horiz_position++; |
| cfg.flags = 0; |
| hw_lm->ops.setup_mixer_out(hw_lm, &cfg); |
| } |
| } |
| |
| static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc, |
| struct dpu_crtc *dpu_crtc, struct dpu_crtc_mixer *mixer) |
| { |
| struct drm_plane *plane; |
| struct drm_framebuffer *fb; |
| struct drm_plane_state *state; |
| struct dpu_crtc_state *cstate; |
| struct dpu_plane_state *pstate = NULL; |
| struct dpu_format *format; |
| struct dpu_hw_ctl *ctl; |
| struct dpu_hw_mixer *lm; |
| struct dpu_hw_stage_cfg *stage_cfg; |
| |
| u32 flush_mask; |
| uint32_t stage_idx, lm_idx; |
| int zpos_cnt[DPU_STAGE_MAX + 1] = { 0 }; |
| bool bg_alpha_enable = false; |
| |
| if (!dpu_crtc || !mixer) { |
| DPU_ERROR("invalid dpu_crtc or mixer\n"); |
| return; |
| } |
| |
| ctl = mixer->hw_ctl; |
| lm = mixer->hw_lm; |
| stage_cfg = &dpu_crtc->stage_cfg; |
| cstate = to_dpu_crtc_state(crtc->state); |
| |
| drm_atomic_crtc_for_each_plane(plane, crtc) { |
| state = plane->state; |
| if (!state) |
| continue; |
| |
| pstate = to_dpu_plane_state(state); |
| fb = state->fb; |
| |
| dpu_plane_get_ctl_flush(plane, ctl, &flush_mask); |
| |
| DPU_DEBUG("crtc %d stage:%d - plane %d sspp %d fb %d\n", |
| crtc->base.id, |
| pstate->stage, |
| plane->base.id, |
| dpu_plane_pipe(plane) - SSPP_VIG0, |
| state->fb ? state->fb->base.id : -1); |
| |
| format = to_dpu_format(msm_framebuffer_format(pstate->base.fb)); |
| if (!format) { |
| DPU_ERROR("invalid format\n"); |
| return; |
| } |
| |
| if (pstate->stage == DPU_STAGE_BASE && format->alpha_enable) |
| bg_alpha_enable = true; |
| |
| stage_idx = zpos_cnt[pstate->stage]++; |
| stage_cfg->stage[pstate->stage][stage_idx] = |
| dpu_plane_pipe(plane); |
| stage_cfg->multirect_index[pstate->stage][stage_idx] = |
| pstate->multirect_index; |
| |
| trace_dpu_crtc_setup_mixer(DRMID(crtc), DRMID(plane), |
| state, pstate, stage_idx, |
| dpu_plane_pipe(plane) - SSPP_VIG0, |
| format->base.pixel_format, |
| fb ? fb->modifier : 0); |
| |
| /* blend config update */ |
| for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) { |
| _dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate); |
| |
| mixer[lm_idx].flush_mask |= flush_mask; |
| |
| if (bg_alpha_enable && !format->alpha_enable) |
| mixer[lm_idx].mixer_op_mode = 0; |
| else |
| mixer[lm_idx].mixer_op_mode |= |
| 1 << pstate->stage; |
| } |
| } |
| |
| _dpu_crtc_program_lm_output_roi(crtc); |
| } |
| |
| /** |
| * _dpu_crtc_blend_setup - configure crtc mixers |
| * @crtc: Pointer to drm crtc structure |
| */ |
| static void _dpu_crtc_blend_setup(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *dpu_crtc_state; |
| struct dpu_crtc_mixer *mixer; |
| struct dpu_hw_ctl *ctl; |
| struct dpu_hw_mixer *lm; |
| |
| int i; |
| |
| if (!crtc) |
| return; |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| dpu_crtc_state = to_dpu_crtc_state(crtc->state); |
| mixer = dpu_crtc->mixers; |
| |
| DPU_DEBUG("%s\n", dpu_crtc->name); |
| |
| if (dpu_crtc->num_mixers > CRTC_DUAL_MIXERS) { |
| DPU_ERROR("invalid number mixers: %d\n", dpu_crtc->num_mixers); |
| return; |
| } |
| |
| for (i = 0; i < dpu_crtc->num_mixers; i++) { |
| if (!mixer[i].hw_lm || !mixer[i].hw_ctl) { |
| DPU_ERROR("invalid lm or ctl assigned to mixer\n"); |
| return; |
| } |
| mixer[i].mixer_op_mode = 0; |
| mixer[i].flush_mask = 0; |
| if (mixer[i].hw_ctl->ops.clear_all_blendstages) |
| mixer[i].hw_ctl->ops.clear_all_blendstages( |
| mixer[i].hw_ctl); |
| } |
| |
| /* initialize stage cfg */ |
| memset(&dpu_crtc->stage_cfg, 0, sizeof(struct dpu_hw_stage_cfg)); |
| |
| _dpu_crtc_blend_setup_mixer(crtc, dpu_crtc, mixer); |
| |
| for (i = 0; i < dpu_crtc->num_mixers; i++) { |
| ctl = mixer[i].hw_ctl; |
| lm = mixer[i].hw_lm; |
| |
| lm->ops.setup_alpha_out(lm, mixer[i].mixer_op_mode); |
| |
| mixer[i].flush_mask |= ctl->ops.get_bitmask_mixer(ctl, |
| mixer[i].hw_lm->idx); |
| |
| /* stage config flush mask */ |
| ctl->ops.update_pending_flush(ctl, mixer[i].flush_mask); |
| |
| DPU_DEBUG("lm %d, op_mode 0x%X, ctl %d, flush mask 0x%x\n", |
| mixer[i].hw_lm->idx - LM_0, |
| mixer[i].mixer_op_mode, |
| ctl->idx - CTL_0, |
| mixer[i].flush_mask); |
| |
| ctl->ops.setup_blendstage(ctl, mixer[i].hw_lm->idx, |
| &dpu_crtc->stage_cfg); |
| } |
| } |
| |
| /** |
| * _dpu_crtc_complete_flip - signal pending page_flip events |
| * Any pending vblank events are added to the vblank_event_list |
| * so that the next vblank interrupt shall signal them. |
| * However PAGE_FLIP events are not handled through the vblank_event_list. |
| * This API signals any pending PAGE_FLIP events requested through |
| * DRM_IOCTL_MODE_PAGE_FLIP and are cached in the dpu_crtc->event. |
| * @crtc: Pointer to drm crtc structure |
| */ |
| static void _dpu_crtc_complete_flip(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); |
| struct drm_device *dev = crtc->dev; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&dev->event_lock, flags); |
| if (dpu_crtc->event) { |
| DRM_DEBUG_VBL("%s: send event: %pK\n", dpu_crtc->name, |
| dpu_crtc->event); |
| trace_dpu_crtc_complete_flip(DRMID(crtc)); |
| drm_crtc_send_vblank_event(crtc, dpu_crtc->event); |
| dpu_crtc->event = NULL; |
| } |
| spin_unlock_irqrestore(&dev->event_lock, flags); |
| } |
| |
| enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc) |
| { |
| struct drm_encoder *encoder; |
| |
| if (!crtc || !crtc->dev) { |
| DPU_ERROR("invalid crtc\n"); |
| return INTF_MODE_NONE; |
| } |
| |
| drm_for_each_encoder(encoder, crtc->dev) |
| if (encoder->crtc == crtc) |
| return dpu_encoder_get_intf_mode(encoder); |
| |
| return INTF_MODE_NONE; |
| } |
| |
| static void dpu_crtc_vblank_cb(void *data) |
| { |
| struct drm_crtc *crtc = (struct drm_crtc *)data; |
| struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); |
| |
| /* keep statistics on vblank callback - with auto reset via debugfs */ |
| if (ktime_compare(dpu_crtc->vblank_cb_time, ktime_set(0, 0)) == 0) |
| dpu_crtc->vblank_cb_time = ktime_get(); |
| else |
| dpu_crtc->vblank_cb_count++; |
| _dpu_crtc_complete_flip(crtc); |
| drm_crtc_handle_vblank(crtc); |
| trace_dpu_crtc_vblank_cb(DRMID(crtc)); |
| } |
| |
| static void dpu_crtc_frame_event_work(struct kthread_work *work) |
| { |
| struct msm_drm_private *priv; |
| struct dpu_crtc_frame_event *fevent; |
| struct drm_crtc *crtc; |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_kms *dpu_kms; |
| unsigned long flags; |
| bool frame_done = false; |
| |
| if (!work) { |
| DPU_ERROR("invalid work handle\n"); |
| return; |
| } |
| |
| fevent = container_of(work, struct dpu_crtc_frame_event, work); |
| if (!fevent->crtc || !fevent->crtc->state) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| |
| crtc = fevent->crtc; |
| dpu_crtc = to_dpu_crtc(crtc); |
| |
| dpu_kms = _dpu_crtc_get_kms(crtc); |
| if (!dpu_kms) { |
| DPU_ERROR("invalid kms handle\n"); |
| return; |
| } |
| priv = dpu_kms->dev->dev_private; |
| DPU_ATRACE_BEGIN("crtc_frame_event"); |
| |
| DRM_DEBUG_KMS("crtc%d event:%u ts:%lld\n", crtc->base.id, fevent->event, |
| ktime_to_ns(fevent->ts)); |
| |
| if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE |
| | DPU_ENCODER_FRAME_EVENT_ERROR |
| | DPU_ENCODER_FRAME_EVENT_PANEL_DEAD)) { |
| |
| if (atomic_read(&dpu_crtc->frame_pending) < 1) { |
| /* this should not happen */ |
| DRM_ERROR("crtc%d ev:%u ts:%lld frame_pending:%d\n", |
| crtc->base.id, |
| fevent->event, |
| ktime_to_ns(fevent->ts), |
| atomic_read(&dpu_crtc->frame_pending)); |
| } else if (atomic_dec_return(&dpu_crtc->frame_pending) == 0) { |
| /* release bandwidth and other resources */ |
| trace_dpu_crtc_frame_event_done(DRMID(crtc), |
| fevent->event); |
| dpu_core_perf_crtc_release_bw(crtc); |
| } else { |
| trace_dpu_crtc_frame_event_more_pending(DRMID(crtc), |
| fevent->event); |
| } |
| |
| if (fevent->event & DPU_ENCODER_FRAME_EVENT_DONE) |
| dpu_core_perf_crtc_update(crtc, 0, false); |
| |
| if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE |
| | DPU_ENCODER_FRAME_EVENT_ERROR)) |
| frame_done = true; |
| } |
| |
| if (fevent->event & DPU_ENCODER_FRAME_EVENT_PANEL_DEAD) |
| DPU_ERROR("crtc%d ts:%lld received panel dead event\n", |
| crtc->base.id, ktime_to_ns(fevent->ts)); |
| |
| if (frame_done) |
| complete_all(&dpu_crtc->frame_done_comp); |
| |
| spin_lock_irqsave(&dpu_crtc->spin_lock, flags); |
| list_add_tail(&fevent->list, &dpu_crtc->frame_event_list); |
| spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags); |
| DPU_ATRACE_END("crtc_frame_event"); |
| } |
| |
| /* |
| * dpu_crtc_frame_event_cb - crtc frame event callback API. CRTC module |
| * registers this API to encoder for all frame event callbacks like |
| * frame_error, frame_done, idle_timeout, etc. Encoder may call different events |
| * from different context - IRQ, user thread, commit_thread, etc. Each event |
| * should be carefully reviewed and should be processed in proper task context |
| * to avoid schedulin delay or properly manage the irq context's bottom half |
| * processing. |
| */ |
| static void dpu_crtc_frame_event_cb(void *data, u32 event) |
| { |
| struct drm_crtc *crtc = (struct drm_crtc *)data; |
| struct dpu_crtc *dpu_crtc; |
| struct msm_drm_private *priv; |
| struct dpu_crtc_frame_event *fevent; |
| unsigned long flags; |
| u32 crtc_id; |
| |
| if (!crtc || !crtc->dev || !crtc->dev->dev_private) { |
| DPU_ERROR("invalid parameters\n"); |
| return; |
| } |
| |
| /* Nothing to do on idle event */ |
| if (event & DPU_ENCODER_FRAME_EVENT_IDLE) |
| return; |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| priv = crtc->dev->dev_private; |
| crtc_id = drm_crtc_index(crtc); |
| |
| trace_dpu_crtc_frame_event_cb(DRMID(crtc), event); |
| |
| spin_lock_irqsave(&dpu_crtc->spin_lock, flags); |
| fevent = list_first_entry_or_null(&dpu_crtc->frame_event_list, |
| struct dpu_crtc_frame_event, list); |
| if (fevent) |
| list_del_init(&fevent->list); |
| spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags); |
| |
| if (!fevent) { |
| DRM_ERROR("crtc%d event %d overflow\n", crtc->base.id, event); |
| return; |
| } |
| |
| fevent->event = event; |
| fevent->crtc = crtc; |
| fevent->ts = ktime_get(); |
| kthread_queue_work(&priv->event_thread[crtc_id].worker, &fevent->work); |
| } |
| |
| void dpu_crtc_complete_commit(struct drm_crtc *crtc, |
| struct drm_crtc_state *old_state) |
| { |
| if (!crtc || !crtc->state) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| trace_dpu_crtc_complete_commit(DRMID(crtc)); |
| } |
| |
| static void _dpu_crtc_setup_mixer_for_encoder( |
| struct drm_crtc *crtc, |
| struct drm_encoder *enc) |
| { |
| struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); |
| struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc); |
| struct dpu_rm *rm = &dpu_kms->rm; |
| struct dpu_crtc_mixer *mixer; |
| struct dpu_hw_ctl *last_valid_ctl = NULL; |
| int i; |
| struct dpu_rm_hw_iter lm_iter, ctl_iter; |
| |
| dpu_rm_init_hw_iter(&lm_iter, enc->base.id, DPU_HW_BLK_LM); |
| dpu_rm_init_hw_iter(&ctl_iter, enc->base.id, DPU_HW_BLK_CTL); |
| |
| /* Set up all the mixers and ctls reserved by this encoder */ |
| for (i = dpu_crtc->num_mixers; i < ARRAY_SIZE(dpu_crtc->mixers); i++) { |
| mixer = &dpu_crtc->mixers[i]; |
| |
| if (!dpu_rm_get_hw(rm, &lm_iter)) |
| break; |
| mixer->hw_lm = (struct dpu_hw_mixer *)lm_iter.hw; |
| |
| /* CTL may be <= LMs, if <, multiple LMs controlled by 1 CTL */ |
| if (!dpu_rm_get_hw(rm, &ctl_iter)) { |
| DPU_DEBUG("no ctl assigned to lm %d, using previous\n", |
| mixer->hw_lm->idx - LM_0); |
| mixer->hw_ctl = last_valid_ctl; |
| } else { |
| mixer->hw_ctl = (struct dpu_hw_ctl *)ctl_iter.hw; |
| last_valid_ctl = mixer->hw_ctl; |
| } |
| |
| /* Shouldn't happen, mixers are always >= ctls */ |
| if (!mixer->hw_ctl) { |
| DPU_ERROR("no valid ctls found for lm %d\n", |
| mixer->hw_lm->idx - LM_0); |
| return; |
| } |
| |
| mixer->encoder = enc; |
| |
| dpu_crtc->num_mixers++; |
| DPU_DEBUG("setup mixer %d: lm %d\n", |
| i, mixer->hw_lm->idx - LM_0); |
| DPU_DEBUG("setup mixer %d: ctl %d\n", |
| i, mixer->hw_ctl->idx - CTL_0); |
| } |
| } |
| |
| static void _dpu_crtc_setup_mixers(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); |
| struct drm_encoder *enc; |
| |
| dpu_crtc->num_mixers = 0; |
| dpu_crtc->mixers_swapped = false; |
| memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers)); |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| /* Check for mixers on all encoders attached to this crtc */ |
| list_for_each_entry(enc, &crtc->dev->mode_config.encoder_list, head) { |
| if (enc->crtc != crtc) |
| continue; |
| |
| _dpu_crtc_setup_mixer_for_encoder(crtc, enc); |
| } |
| |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| } |
| |
| static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc, |
| struct drm_crtc_state *state) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *cstate; |
| struct drm_display_mode *adj_mode; |
| u32 crtc_split_width; |
| int i; |
| |
| if (!crtc || !state) { |
| DPU_ERROR("invalid args\n"); |
| return; |
| } |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| cstate = to_dpu_crtc_state(state); |
| |
| adj_mode = &state->adjusted_mode; |
| crtc_split_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, adj_mode); |
| |
| for (i = 0; i < dpu_crtc->num_mixers; i++) { |
| struct drm_rect *r = &cstate->lm_bounds[i]; |
| r->x1 = crtc_split_width * i; |
| r->y1 = 0; |
| r->x2 = r->x1 + crtc_split_width; |
| r->y2 = dpu_crtc_get_mixer_height(dpu_crtc, cstate, adj_mode); |
| |
| trace_dpu_crtc_setup_lm_bounds(DRMID(crtc), i, r); |
| } |
| |
| drm_mode_debug_printmodeline(adj_mode); |
| } |
| |
| static void dpu_crtc_atomic_begin(struct drm_crtc *crtc, |
| struct drm_crtc_state *old_state) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct drm_encoder *encoder; |
| struct drm_device *dev; |
| unsigned long flags; |
| struct dpu_crtc_smmu_state_data *smmu_state; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| |
| if (!crtc->state->enable) { |
| DPU_DEBUG("crtc%d -> enable %d, skip atomic_begin\n", |
| crtc->base.id, crtc->state->enable); |
| return; |
| } |
| |
| DPU_DEBUG("crtc%d\n", crtc->base.id); |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| dev = crtc->dev; |
| smmu_state = &dpu_crtc->smmu_state; |
| |
| if (!dpu_crtc->num_mixers) { |
| _dpu_crtc_setup_mixers(crtc); |
| _dpu_crtc_setup_lm_bounds(crtc, crtc->state); |
| } |
| |
| if (dpu_crtc->event) { |
| WARN_ON(dpu_crtc->event); |
| } else { |
| spin_lock_irqsave(&dev->event_lock, flags); |
| dpu_crtc->event = crtc->state->event; |
| crtc->state->event = NULL; |
| spin_unlock_irqrestore(&dev->event_lock, flags); |
| } |
| |
| list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| if (encoder->crtc != crtc) |
| continue; |
| |
| /* encoder will trigger pending mask now */ |
| dpu_encoder_trigger_kickoff_pending(encoder); |
| } |
| |
| /* |
| * If no mixers have been allocated in dpu_crtc_atomic_check(), |
| * it means we are trying to flush a CRTC whose state is disabled: |
| * nothing else needs to be done. |
| */ |
| if (unlikely(!dpu_crtc->num_mixers)) |
| return; |
| |
| _dpu_crtc_blend_setup(crtc); |
| |
| /* |
| * PP_DONE irq is only used by command mode for now. |
| * It is better to request pending before FLUSH and START trigger |
| * to make sure no pp_done irq missed. |
| * This is safe because no pp_done will happen before SW trigger |
| * in command mode. |
| */ |
| } |
| |
| static void dpu_crtc_atomic_flush(struct drm_crtc *crtc, |
| struct drm_crtc_state *old_crtc_state) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct drm_device *dev; |
| struct drm_plane *plane; |
| struct msm_drm_private *priv; |
| struct msm_drm_thread *event_thread; |
| unsigned long flags; |
| struct dpu_crtc_state *cstate; |
| |
| if (!crtc || !crtc->dev || !crtc->dev->dev_private) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| |
| if (!crtc->state->enable) { |
| DPU_DEBUG("crtc%d -> enable %d, skip atomic_flush\n", |
| crtc->base.id, crtc->state->enable); |
| return; |
| } |
| |
| DPU_DEBUG("crtc%d\n", crtc->base.id); |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| cstate = to_dpu_crtc_state(crtc->state); |
| dev = crtc->dev; |
| priv = dev->dev_private; |
| |
| if (crtc->index >= ARRAY_SIZE(priv->event_thread)) { |
| DPU_ERROR("invalid crtc index[%d]\n", crtc->index); |
| return; |
| } |
| |
| event_thread = &priv->event_thread[crtc->index]; |
| |
| if (dpu_crtc->event) { |
| DPU_DEBUG("already received dpu_crtc->event\n"); |
| } else { |
| spin_lock_irqsave(&dev->event_lock, flags); |
| dpu_crtc->event = crtc->state->event; |
| crtc->state->event = NULL; |
| spin_unlock_irqrestore(&dev->event_lock, flags); |
| } |
| |
| /* |
| * If no mixers has been allocated in dpu_crtc_atomic_check(), |
| * it means we are trying to flush a CRTC whose state is disabled: |
| * nothing else needs to be done. |
| */ |
| if (unlikely(!dpu_crtc->num_mixers)) |
| return; |
| |
| /* |
| * For planes without commit update, drm framework will not add |
| * those planes to current state since hardware update is not |
| * required. However, if those planes were power collapsed since |
| * last commit cycle, driver has to restore the hardware state |
| * of those planes explicitly here prior to plane flush. |
| */ |
| drm_atomic_crtc_for_each_plane(plane, crtc) |
| dpu_plane_restore(plane); |
| |
| /* update performance setting before crtc kickoff */ |
| dpu_core_perf_crtc_update(crtc, 1, false); |
| |
| /* |
| * Final plane updates: Give each plane a chance to complete all |
| * required writes/flushing before crtc's "flush |
| * everything" call below. |
| */ |
| drm_atomic_crtc_for_each_plane(plane, crtc) { |
| if (dpu_crtc->smmu_state.transition_error) |
| dpu_plane_set_error(plane, true); |
| dpu_plane_flush(plane); |
| } |
| |
| /* Kickoff will be scheduled by outer layer */ |
| } |
| |
| /** |
| * dpu_crtc_destroy_state - state destroy hook |
| * @crtc: drm CRTC |
| * @state: CRTC state object to release |
| */ |
| static void dpu_crtc_destroy_state(struct drm_crtc *crtc, |
| struct drm_crtc_state *state) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *cstate; |
| |
| if (!crtc || !state) { |
| DPU_ERROR("invalid argument(s)\n"); |
| return; |
| } |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| cstate = to_dpu_crtc_state(state); |
| |
| DPU_DEBUG("crtc%d\n", crtc->base.id); |
| |
| _dpu_crtc_rp_destroy(&cstate->rp); |
| |
| __drm_atomic_helper_crtc_destroy_state(state); |
| |
| kfree(cstate); |
| } |
| |
| static int _dpu_crtc_wait_for_frame_done(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| int ret, rc = 0; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid argument\n"); |
| return -EINVAL; |
| } |
| dpu_crtc = to_dpu_crtc(crtc); |
| |
| if (!atomic_read(&dpu_crtc->frame_pending)) { |
| DPU_DEBUG("no frames pending\n"); |
| return 0; |
| } |
| |
| DPU_ATRACE_BEGIN("frame done completion wait"); |
| ret = wait_for_completion_timeout(&dpu_crtc->frame_done_comp, |
| msecs_to_jiffies(DPU_FRAME_DONE_TIMEOUT)); |
| if (!ret) { |
| DRM_ERROR("frame done wait timed out, ret:%d\n", ret); |
| rc = -ETIMEDOUT; |
| } |
| DPU_ATRACE_END("frame done completion wait"); |
| |
| return rc; |
| } |
| |
| void dpu_crtc_commit_kickoff(struct drm_crtc *crtc) |
| { |
| struct drm_encoder *encoder; |
| struct drm_device *dev; |
| struct dpu_crtc *dpu_crtc; |
| struct msm_drm_private *priv; |
| struct dpu_kms *dpu_kms; |
| struct dpu_crtc_state *cstate; |
| int ret; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid argument\n"); |
| return; |
| } |
| dev = crtc->dev; |
| dpu_crtc = to_dpu_crtc(crtc); |
| dpu_kms = _dpu_crtc_get_kms(crtc); |
| |
| if (!dpu_kms || !dpu_kms->dev || !dpu_kms->dev->dev_private) { |
| DPU_ERROR("invalid argument\n"); |
| return; |
| } |
| |
| priv = dpu_kms->dev->dev_private; |
| cstate = to_dpu_crtc_state(crtc->state); |
| |
| /* |
| * If no mixers has been allocated in dpu_crtc_atomic_check(), |
| * it means we are trying to start a CRTC whose state is disabled: |
| * nothing else needs to be done. |
| */ |
| if (unlikely(!dpu_crtc->num_mixers)) |
| return; |
| |
| DPU_ATRACE_BEGIN("crtc_commit"); |
| |
| list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| struct dpu_encoder_kickoff_params params = { 0 }; |
| |
| if (encoder->crtc != crtc) |
| continue; |
| |
| /* |
| * Encoder will flush/start now, unless it has a tx pending. |
| * If so, it may delay and flush at an irq event (e.g. ppdone) |
| */ |
| dpu_encoder_prepare_for_kickoff(encoder, ¶ms); |
| } |
| |
| /* wait for frame_event_done completion */ |
| DPU_ATRACE_BEGIN("wait_for_frame_done_event"); |
| ret = _dpu_crtc_wait_for_frame_done(crtc); |
| DPU_ATRACE_END("wait_for_frame_done_event"); |
| if (ret) { |
| DPU_ERROR("crtc%d wait for frame done failed;frame_pending%d\n", |
| crtc->base.id, |
| atomic_read(&dpu_crtc->frame_pending)); |
| goto end; |
| } |
| |
| if (atomic_inc_return(&dpu_crtc->frame_pending) == 1) { |
| /* acquire bandwidth and other resources */ |
| DPU_DEBUG("crtc%d first commit\n", crtc->base.id); |
| } else |
| DPU_DEBUG("crtc%d commit\n", crtc->base.id); |
| |
| dpu_crtc->play_count++; |
| |
| dpu_vbif_clear_errors(dpu_kms); |
| |
| list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| if (encoder->crtc != crtc) |
| continue; |
| |
| dpu_encoder_kickoff(encoder); |
| } |
| |
| end: |
| reinit_completion(&dpu_crtc->frame_done_comp); |
| DPU_ATRACE_END("crtc_commit"); |
| } |
| |
| /** |
| * _dpu_crtc_vblank_enable_no_lock - update power resource and vblank request |
| * @dpu_crtc: Pointer to dpu crtc structure |
| * @enable: Whether to enable/disable vblanks |
| * |
| * @Return: error code |
| */ |
| static int _dpu_crtc_vblank_enable_no_lock( |
| struct dpu_crtc *dpu_crtc, bool enable) |
| { |
| struct drm_device *dev; |
| struct drm_crtc *crtc; |
| struct drm_encoder *enc; |
| |
| if (!dpu_crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return -EINVAL; |
| } |
| |
| crtc = &dpu_crtc->base; |
| dev = crtc->dev; |
| |
| if (enable) { |
| int ret; |
| |
| /* drop lock since power crtc cb may try to re-acquire lock */ |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| ret = _dpu_crtc_power_enable(dpu_crtc, true); |
| mutex_lock(&dpu_crtc->crtc_lock); |
| if (ret) |
| return ret; |
| |
| list_for_each_entry(enc, &dev->mode_config.encoder_list, head) { |
| if (enc->crtc != crtc) |
| continue; |
| |
| trace_dpu_crtc_vblank_enable(DRMID(&dpu_crtc->base), |
| DRMID(enc), enable, |
| dpu_crtc); |
| |
| dpu_encoder_register_vblank_callback(enc, |
| dpu_crtc_vblank_cb, (void *)crtc); |
| } |
| } else { |
| list_for_each_entry(enc, &dev->mode_config.encoder_list, head) { |
| if (enc->crtc != crtc) |
| continue; |
| |
| trace_dpu_crtc_vblank_enable(DRMID(&dpu_crtc->base), |
| DRMID(enc), enable, |
| dpu_crtc); |
| |
| dpu_encoder_register_vblank_callback(enc, NULL, NULL); |
| } |
| |
| /* drop lock since power crtc cb may try to re-acquire lock */ |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| _dpu_crtc_power_enable(dpu_crtc, false); |
| mutex_lock(&dpu_crtc->crtc_lock); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * _dpu_crtc_set_suspend - notify crtc of suspend enable/disable |
| * @crtc: Pointer to drm crtc object |
| * @enable: true to enable suspend, false to indicate resume |
| */ |
| static void _dpu_crtc_set_suspend(struct drm_crtc *crtc, bool enable) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct msm_drm_private *priv; |
| struct dpu_kms *dpu_kms; |
| int ret = 0; |
| |
| if (!crtc || !crtc->dev || !crtc->dev->dev_private) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| dpu_crtc = to_dpu_crtc(crtc); |
| priv = crtc->dev->dev_private; |
| |
| if (!priv->kms) { |
| DPU_ERROR("invalid crtc kms\n"); |
| return; |
| } |
| dpu_kms = to_dpu_kms(priv->kms); |
| |
| DRM_DEBUG_KMS("crtc%d suspend = %d\n", crtc->base.id, enable); |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| |
| /* |
| * If the vblank is enabled, release a power reference on suspend |
| * and take it back during resume (if it is still enabled). |
| */ |
| trace_dpu_crtc_set_suspend(DRMID(&dpu_crtc->base), enable, dpu_crtc); |
| if (dpu_crtc->suspend == enable) |
| DPU_DEBUG("crtc%d suspend already set to %d, ignoring update\n", |
| crtc->base.id, enable); |
| else if (dpu_crtc->enabled && dpu_crtc->vblank_requested) { |
| ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, !enable); |
| if (ret) |
| DPU_ERROR("%s vblank enable failed: %d\n", |
| dpu_crtc->name, ret); |
| } |
| |
| dpu_crtc->suspend = enable; |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| } |
| |
| /** |
| * dpu_crtc_duplicate_state - state duplicate hook |
| * @crtc: Pointer to drm crtc structure |
| * @Returns: Pointer to new drm_crtc_state structure |
| */ |
| static struct drm_crtc_state *dpu_crtc_duplicate_state(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *cstate, *old_cstate; |
| |
| if (!crtc || !crtc->state) { |
| DPU_ERROR("invalid argument(s)\n"); |
| return NULL; |
| } |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| old_cstate = to_dpu_crtc_state(crtc->state); |
| cstate = kmemdup(old_cstate, sizeof(*old_cstate), GFP_KERNEL); |
| if (!cstate) { |
| DPU_ERROR("failed to allocate state\n"); |
| return NULL; |
| } |
| |
| /* duplicate base helper */ |
| __drm_atomic_helper_crtc_duplicate_state(crtc, &cstate->base); |
| |
| _dpu_crtc_rp_duplicate(&old_cstate->rp, &cstate->rp); |
| |
| return &cstate->base; |
| } |
| |
| /** |
| * dpu_crtc_reset - reset hook for CRTCs |
| * Resets the atomic state for @crtc by freeing the state pointer (which might |
| * be NULL, e.g. at driver load time) and allocating a new empty state object. |
| * @crtc: Pointer to drm crtc structure |
| */ |
| static void dpu_crtc_reset(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *cstate; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| |
| /* revert suspend actions, if necessary */ |
| if (dpu_kms_is_suspend_state(crtc->dev)) |
| _dpu_crtc_set_suspend(crtc, false); |
| |
| /* remove previous state, if present */ |
| if (crtc->state) { |
| dpu_crtc_destroy_state(crtc, crtc->state); |
| crtc->state = 0; |
| } |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| cstate = kzalloc(sizeof(*cstate), GFP_KERNEL); |
| if (!cstate) { |
| DPU_ERROR("failed to allocate state\n"); |
| return; |
| } |
| |
| _dpu_crtc_rp_reset(&cstate->rp, &dpu_crtc->rp_lock, |
| &dpu_crtc->rp_head); |
| |
| cstate->base.crtc = crtc; |
| crtc->state = &cstate->base; |
| } |
| |
| static void dpu_crtc_handle_power_event(u32 event_type, void *arg) |
| { |
| struct drm_crtc *crtc = arg; |
| struct dpu_crtc *dpu_crtc; |
| struct drm_encoder *encoder; |
| struct dpu_crtc_mixer *m; |
| u32 i, misr_status; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| dpu_crtc = to_dpu_crtc(crtc); |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| |
| trace_dpu_crtc_handle_power_event(DRMID(crtc), event_type); |
| |
| switch (event_type) { |
| case DPU_POWER_EVENT_POST_ENABLE: |
| /* restore encoder; crtc will be programmed during commit */ |
| drm_for_each_encoder(encoder, crtc->dev) { |
| if (encoder->crtc != crtc) |
| continue; |
| |
| dpu_encoder_virt_restore(encoder); |
| } |
| |
| for (i = 0; i < dpu_crtc->num_mixers; ++i) { |
| m = &dpu_crtc->mixers[i]; |
| if (!m->hw_lm || !m->hw_lm->ops.setup_misr || |
| !dpu_crtc->misr_enable) |
| continue; |
| |
| m->hw_lm->ops.setup_misr(m->hw_lm, true, |
| dpu_crtc->misr_frame_count); |
| } |
| break; |
| case DPU_POWER_EVENT_PRE_DISABLE: |
| for (i = 0; i < dpu_crtc->num_mixers; ++i) { |
| m = &dpu_crtc->mixers[i]; |
| if (!m->hw_lm || !m->hw_lm->ops.collect_misr || |
| !dpu_crtc->misr_enable) |
| continue; |
| |
| misr_status = m->hw_lm->ops.collect_misr(m->hw_lm); |
| dpu_crtc->misr_data[i] = misr_status ? misr_status : |
| dpu_crtc->misr_data[i]; |
| } |
| break; |
| case DPU_POWER_EVENT_POST_DISABLE: |
| /** |
| * Nothing to do. All the planes on the CRTC will be |
| * programmed for every frame |
| */ |
| break; |
| default: |
| DPU_DEBUG("event:%d not handled\n", event_type); |
| break; |
| } |
| |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| } |
| |
| static void dpu_crtc_disable(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_state *cstate; |
| struct drm_display_mode *mode; |
| struct drm_encoder *encoder; |
| struct msm_drm_private *priv; |
| int ret; |
| unsigned long flags; |
| |
| if (!crtc || !crtc->dev || !crtc->dev->dev_private || !crtc->state) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| dpu_crtc = to_dpu_crtc(crtc); |
| cstate = to_dpu_crtc_state(crtc->state); |
| mode = &cstate->base.adjusted_mode; |
| priv = crtc->dev->dev_private; |
| |
| DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); |
| |
| if (dpu_kms_is_suspend_state(crtc->dev)) |
| _dpu_crtc_set_suspend(crtc, true); |
| |
| /* Disable/save vblank irq handling */ |
| drm_crtc_vblank_off(crtc); |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| |
| /* wait for frame_event_done completion */ |
| if (_dpu_crtc_wait_for_frame_done(crtc)) |
| DPU_ERROR("crtc%d wait for frame done failed;frame_pending%d\n", |
| crtc->base.id, |
| atomic_read(&dpu_crtc->frame_pending)); |
| |
| trace_dpu_crtc_disable(DRMID(crtc), false, dpu_crtc); |
| if (dpu_crtc->enabled && !dpu_crtc->suspend && |
| dpu_crtc->vblank_requested) { |
| ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, false); |
| if (ret) |
| DPU_ERROR("%s vblank enable failed: %d\n", |
| dpu_crtc->name, ret); |
| } |
| dpu_crtc->enabled = false; |
| |
| if (atomic_read(&dpu_crtc->frame_pending)) { |
| trace_dpu_crtc_disable_frame_pending(DRMID(crtc), |
| atomic_read(&dpu_crtc->frame_pending)); |
| dpu_core_perf_crtc_release_bw(crtc); |
| atomic_set(&dpu_crtc->frame_pending, 0); |
| } |
| |
| dpu_core_perf_crtc_update(crtc, 0, true); |
| |
| drm_for_each_encoder(encoder, crtc->dev) { |
| if (encoder->crtc != crtc) |
| continue; |
| dpu_encoder_register_frame_event_callback(encoder, NULL, NULL); |
| } |
| |
| if (dpu_crtc->power_event) |
| dpu_power_handle_unregister_event(dpu_crtc->phandle, |
| dpu_crtc->power_event); |
| |
| memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers)); |
| dpu_crtc->num_mixers = 0; |
| dpu_crtc->mixers_swapped = false; |
| |
| /* disable clk & bw control until clk & bw properties are set */ |
| cstate->bw_control = false; |
| cstate->bw_split_vote = false; |
| |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| |
| if (crtc->state->event && !crtc->state->active) { |
| spin_lock_irqsave(&crtc->dev->event_lock, flags); |
| drm_crtc_send_vblank_event(crtc, crtc->state->event); |
| crtc->state->event = NULL; |
| spin_unlock_irqrestore(&crtc->dev->event_lock, flags); |
| } |
| } |
| |
| static void dpu_crtc_enable(struct drm_crtc *crtc, |
| struct drm_crtc_state *old_crtc_state) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct drm_encoder *encoder; |
| struct msm_drm_private *priv; |
| int ret; |
| |
| if (!crtc || !crtc->dev || !crtc->dev->dev_private) { |
| DPU_ERROR("invalid crtc\n"); |
| return; |
| } |
| priv = crtc->dev->dev_private; |
| |
| DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); |
| dpu_crtc = to_dpu_crtc(crtc); |
| |
| drm_for_each_encoder(encoder, crtc->dev) { |
| if (encoder->crtc != crtc) |
| continue; |
| dpu_encoder_register_frame_event_callback(encoder, |
| dpu_crtc_frame_event_cb, (void *)crtc); |
| } |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc); |
| if (!dpu_crtc->enabled && !dpu_crtc->suspend && |
| dpu_crtc->vblank_requested) { |
| ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, true); |
| if (ret) |
| DPU_ERROR("%s vblank enable failed: %d\n", |
| dpu_crtc->name, ret); |
| } |
| dpu_crtc->enabled = true; |
| |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| |
| /* Enable/restore vblank irq handling */ |
| drm_crtc_vblank_on(crtc); |
| |
| dpu_crtc->power_event = dpu_power_handle_register_event( |
| dpu_crtc->phandle, |
| DPU_POWER_EVENT_POST_ENABLE | DPU_POWER_EVENT_POST_DISABLE | |
| DPU_POWER_EVENT_PRE_DISABLE, |
| dpu_crtc_handle_power_event, crtc, dpu_crtc->name); |
| |
| } |
| |
| struct plane_state { |
| struct dpu_plane_state *dpu_pstate; |
| const struct drm_plane_state *drm_pstate; |
| int stage; |
| u32 pipe_id; |
| }; |
| |
| static int dpu_crtc_atomic_check(struct drm_crtc *crtc, |
| struct drm_crtc_state *state) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct plane_state *pstates; |
| struct dpu_crtc_state *cstate; |
| |
| const struct drm_plane_state *pstate; |
| struct drm_plane *plane; |
| struct drm_display_mode *mode; |
| |
| int cnt = 0, rc = 0, mixer_width, i, z_pos; |
| |
| struct dpu_multirect_plane_states multirect_plane[DPU_STAGE_MAX * 2]; |
| int multirect_count = 0; |
| const struct drm_plane_state *pipe_staged[SSPP_MAX]; |
| int left_zpos_cnt = 0, right_zpos_cnt = 0; |
| struct drm_rect crtc_rect = { 0 }; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return -EINVAL; |
| } |
| |
| pstates = kzalloc(sizeof(*pstates) * DPU_STAGE_MAX * 4, GFP_KERNEL); |
| |
| dpu_crtc = to_dpu_crtc(crtc); |
| cstate = to_dpu_crtc_state(state); |
| |
| if (!state->enable || !state->active) { |
| DPU_DEBUG("crtc%d -> enable %d, active %d, skip atomic_check\n", |
| crtc->base.id, state->enable, state->active); |
| goto end; |
| } |
| |
| mode = &state->adjusted_mode; |
| DPU_DEBUG("%s: check", dpu_crtc->name); |
| |
| /* force a full mode set if active state changed */ |
| if (state->active_changed) |
| state->mode_changed = true; |
| |
| memset(pipe_staged, 0, sizeof(pipe_staged)); |
| |
| mixer_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, mode); |
| |
| _dpu_crtc_setup_lm_bounds(crtc, state); |
| |
| crtc_rect.x2 = mode->hdisplay; |
| crtc_rect.y2 = mode->vdisplay; |
| |
| /* get plane state for all drm planes associated with crtc state */ |
| drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) { |
| struct drm_rect dst, clip = crtc_rect; |
| |
| if (IS_ERR_OR_NULL(pstate)) { |
| rc = PTR_ERR(pstate); |
| DPU_ERROR("%s: failed to get plane%d state, %d\n", |
| dpu_crtc->name, plane->base.id, rc); |
| goto end; |
| } |
| if (cnt >= DPU_STAGE_MAX * 4) |
| continue; |
| |
| pstates[cnt].dpu_pstate = to_dpu_plane_state(pstate); |
| pstates[cnt].drm_pstate = pstate; |
| pstates[cnt].stage = pstate->normalized_zpos; |
| pstates[cnt].pipe_id = dpu_plane_pipe(plane); |
| |
| if (pipe_staged[pstates[cnt].pipe_id]) { |
| multirect_plane[multirect_count].r0 = |
| pipe_staged[pstates[cnt].pipe_id]; |
| multirect_plane[multirect_count].r1 = pstate; |
| multirect_count++; |
| |
| pipe_staged[pstates[cnt].pipe_id] = NULL; |
| } else { |
| pipe_staged[pstates[cnt].pipe_id] = pstate; |
| } |
| |
| cnt++; |
| |
| dst = drm_plane_state_dest(pstate); |
| if (!drm_rect_intersect(&clip, &dst) || |
| !drm_rect_equals(&clip, &dst)) { |
| DPU_ERROR("invalid vertical/horizontal destination\n"); |
| DPU_ERROR("display: " DRM_RECT_FMT " plane: " |
| DRM_RECT_FMT "\n", DRM_RECT_ARG(&crtc_rect), |
| DRM_RECT_ARG(&dst)); |
| rc = -E2BIG; |
| goto end; |
| } |
| } |
| |
| for (i = 1; i < SSPP_MAX; i++) { |
| if (pipe_staged[i]) { |
| dpu_plane_clear_multirect(pipe_staged[i]); |
| |
| if (is_dpu_plane_virtual(pipe_staged[i]->plane)) { |
| DPU_ERROR( |
| "r1 only virt plane:%d not supported\n", |
| pipe_staged[i]->plane->base.id); |
| rc = -EINVAL; |
| goto end; |
| } |
| } |
| } |
| |
| z_pos = -1; |
| for (i = 0; i < cnt; i++) { |
| /* reset counts at every new blend stage */ |
| if (pstates[i].stage != z_pos) { |
| left_zpos_cnt = 0; |
| right_zpos_cnt = 0; |
| z_pos = pstates[i].stage; |
| } |
| |
| /* verify z_pos setting before using it */ |
| if (z_pos >= DPU_STAGE_MAX - DPU_STAGE_0) { |
| DPU_ERROR("> %d plane stages assigned\n", |
| DPU_STAGE_MAX - DPU_STAGE_0); |
| rc = -EINVAL; |
| goto end; |
| } else if (pstates[i].drm_pstate->crtc_x < mixer_width) { |
| if (left_zpos_cnt == 2) { |
| DPU_ERROR("> 2 planes @ stage %d on left\n", |
| z_pos); |
| rc = -EINVAL; |
| goto end; |
| } |
| left_zpos_cnt++; |
| |
| } else { |
| if (right_zpos_cnt == 2) { |
| DPU_ERROR("> 2 planes @ stage %d on right\n", |
| z_pos); |
| rc = -EINVAL; |
| goto end; |
| } |
| right_zpos_cnt++; |
| } |
| |
| pstates[i].dpu_pstate->stage = z_pos + DPU_STAGE_0; |
| DPU_DEBUG("%s: zpos %d", dpu_crtc->name, z_pos); |
| } |
| |
| for (i = 0; i < multirect_count; i++) { |
| if (dpu_plane_validate_multirect_v2(&multirect_plane[i])) { |
| DPU_ERROR( |
| "multirect validation failed for planes (%d - %d)\n", |
| multirect_plane[i].r0->plane->base.id, |
| multirect_plane[i].r1->plane->base.id); |
| rc = -EINVAL; |
| goto end; |
| } |
| } |
| |
| rc = dpu_core_perf_crtc_check(crtc, state); |
| if (rc) { |
| DPU_ERROR("crtc%d failed performance check %d\n", |
| crtc->base.id, rc); |
| goto end; |
| } |
| |
| /* validate source split: |
| * use pstates sorted by stage to check planes on same stage |
| * we assume that all pipes are in source split so its valid to compare |
| * without taking into account left/right mixer placement |
| */ |
| for (i = 1; i < cnt; i++) { |
| struct plane_state *prv_pstate, *cur_pstate; |
| struct drm_rect left_rect, right_rect; |
| int32_t left_pid, right_pid; |
| int32_t stage; |
| |
| prv_pstate = &pstates[i - 1]; |
| cur_pstate = &pstates[i]; |
| if (prv_pstate->stage != cur_pstate->stage) |
| continue; |
| |
| stage = cur_pstate->stage; |
| |
| left_pid = prv_pstate->dpu_pstate->base.plane->base.id; |
| left_rect = drm_plane_state_dest(prv_pstate->drm_pstate); |
| |
| right_pid = cur_pstate->dpu_pstate->base.plane->base.id; |
| right_rect = drm_plane_state_dest(cur_pstate->drm_pstate); |
| |
| if (right_rect.x1 < left_rect.x1) { |
| swap(left_pid, right_pid); |
| swap(left_rect, right_rect); |
| } |
| |
| /** |
| * - planes are enumerated in pipe-priority order such that |
| * planes with lower drm_id must be left-most in a shared |
| * blend-stage when using source split. |
| * - planes in source split must be contiguous in width |
| * - planes in source split must have same dest yoff and height |
| */ |
| if (right_pid < left_pid) { |
| DPU_ERROR( |
| "invalid src split cfg. priority mismatch. stage: %d left: %d right: %d\n", |
| stage, left_pid, right_pid); |
| rc = -EINVAL; |
| goto end; |
| } else if (right_rect.x1 != drm_rect_width(&left_rect)) { |
| DPU_ERROR("non-contiguous coordinates for src split. " |
| "stage: %d left: " DRM_RECT_FMT " right: " |
| DRM_RECT_FMT "\n", stage, |
| DRM_RECT_ARG(&left_rect), |
| DRM_RECT_ARG(&right_rect)); |
| rc = -EINVAL; |
| goto end; |
| } else if (left_rect.y1 != right_rect.y1 || |
| drm_rect_height(&left_rect) != drm_rect_height(&right_rect)) { |
| DPU_ERROR("source split at stage: %d. invalid " |
| "yoff/height: left: " DRM_RECT_FMT " right: " |
| DRM_RECT_FMT "\n", stage, |
| DRM_RECT_ARG(&left_rect), |
| DRM_RECT_ARG(&right_rect)); |
| rc = -EINVAL; |
| goto end; |
| } |
| } |
| |
| end: |
| _dpu_crtc_rp_free_unused(&cstate->rp); |
| kfree(pstates); |
| return rc; |
| } |
| |
| int dpu_crtc_vblank(struct drm_crtc *crtc, bool en) |
| { |
| struct dpu_crtc *dpu_crtc; |
| int ret; |
| |
| if (!crtc) { |
| DPU_ERROR("invalid crtc\n"); |
| return -EINVAL; |
| } |
| dpu_crtc = to_dpu_crtc(crtc); |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| trace_dpu_crtc_vblank(DRMID(&dpu_crtc->base), en, dpu_crtc); |
| if (dpu_crtc->enabled && !dpu_crtc->suspend) { |
| ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, en); |
| if (ret) |
| DPU_ERROR("%s vblank enable failed: %d\n", |
| dpu_crtc->name, ret); |
| } |
| dpu_crtc->vblank_requested = en; |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_DEBUG_FS |
| static int _dpu_debugfs_status_show(struct seq_file *s, void *data) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_plane_state *pstate = NULL; |
| struct dpu_crtc_mixer *m; |
| |
| struct drm_crtc *crtc; |
| struct drm_plane *plane; |
| struct drm_display_mode *mode; |
| struct drm_framebuffer *fb; |
| struct drm_plane_state *state; |
| struct dpu_crtc_state *cstate; |
| |
| int i, out_width; |
| |
| if (!s || !s->private) |
| return -EINVAL; |
| |
| dpu_crtc = s->private; |
| crtc = &dpu_crtc->base; |
| cstate = to_dpu_crtc_state(crtc->state); |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| mode = &crtc->state->adjusted_mode; |
| out_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, mode); |
| |
| seq_printf(s, "crtc:%d width:%d height:%d\n", crtc->base.id, |
| mode->hdisplay, mode->vdisplay); |
| |
| seq_puts(s, "\n"); |
| |
| for (i = 0; i < dpu_crtc->num_mixers; ++i) { |
| m = &dpu_crtc->mixers[i]; |
| if (!m->hw_lm) |
| seq_printf(s, "\tmixer[%d] has no lm\n", i); |
| else if (!m->hw_ctl) |
| seq_printf(s, "\tmixer[%d] has no ctl\n", i); |
| else |
| seq_printf(s, "\tmixer:%d ctl:%d width:%d height:%d\n", |
| m->hw_lm->idx - LM_0, m->hw_ctl->idx - CTL_0, |
| out_width, mode->vdisplay); |
| } |
| |
| seq_puts(s, "\n"); |
| |
| drm_atomic_crtc_for_each_plane(plane, crtc) { |
| pstate = to_dpu_plane_state(plane->state); |
| state = plane->state; |
| |
| if (!pstate || !state) |
| continue; |
| |
| seq_printf(s, "\tplane:%u stage:%d\n", plane->base.id, |
| pstate->stage); |
| |
| if (plane->state->fb) { |
| fb = plane->state->fb; |
| |
| seq_printf(s, "\tfb:%d image format:%4.4s wxh:%ux%u ", |
| fb->base.id, (char *) &fb->format->format, |
| fb->width, fb->height); |
| for (i = 0; i < ARRAY_SIZE(fb->format->cpp); ++i) |
| seq_printf(s, "cpp[%d]:%u ", |
| i, fb->format->cpp[i]); |
| seq_puts(s, "\n\t"); |
| |
| seq_printf(s, "modifier:%8llu ", fb->modifier); |
| seq_puts(s, "\n"); |
| |
| seq_puts(s, "\t"); |
| for (i = 0; i < ARRAY_SIZE(fb->pitches); i++) |
| seq_printf(s, "pitches[%d]:%8u ", i, |
| fb->pitches[i]); |
| seq_puts(s, "\n"); |
| |
| seq_puts(s, "\t"); |
| for (i = 0; i < ARRAY_SIZE(fb->offsets); i++) |
| seq_printf(s, "offsets[%d]:%8u ", i, |
| fb->offsets[i]); |
| seq_puts(s, "\n"); |
| } |
| |
| seq_printf(s, "\tsrc_x:%4d src_y:%4d src_w:%4d src_h:%4d\n", |
| state->src_x, state->src_y, state->src_w, state->src_h); |
| |
| seq_printf(s, "\tdst x:%4d dst_y:%4d dst_w:%4d dst_h:%4d\n", |
| state->crtc_x, state->crtc_y, state->crtc_w, |
| state->crtc_h); |
| seq_printf(s, "\tmultirect: mode: %d index: %d\n", |
| pstate->multirect_mode, pstate->multirect_index); |
| |
| seq_puts(s, "\n"); |
| } |
| if (dpu_crtc->vblank_cb_count) { |
| ktime_t diff = ktime_sub(ktime_get(), dpu_crtc->vblank_cb_time); |
| s64 diff_ms = ktime_to_ms(diff); |
| s64 fps = diff_ms ? div_s64( |
| dpu_crtc->vblank_cb_count * 1000, diff_ms) : 0; |
| |
| seq_printf(s, |
| "vblank fps:%lld count:%u total:%llums total_framecount:%llu\n", |
| fps, dpu_crtc->vblank_cb_count, |
| ktime_to_ms(diff), dpu_crtc->play_count); |
| |
| /* reset time & count for next measurement */ |
| dpu_crtc->vblank_cb_count = 0; |
| dpu_crtc->vblank_cb_time = ktime_set(0, 0); |
| } |
| |
| seq_printf(s, "vblank_enable:%d\n", dpu_crtc->vblank_requested); |
| |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| |
| return 0; |
| } |
| |
| static int _dpu_debugfs_status_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, _dpu_debugfs_status_show, inode->i_private); |
| } |
| |
| static ssize_t _dpu_crtc_misr_setup(struct file *file, |
| const char __user *user_buf, size_t count, loff_t *ppos) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_mixer *m; |
| int i = 0, rc; |
| char buf[MISR_BUFF_SIZE + 1]; |
| u32 frame_count, enable; |
| size_t buff_copy; |
| |
| if (!file || !file->private_data) |
| return -EINVAL; |
| |
| dpu_crtc = file->private_data; |
| buff_copy = min_t(size_t, count, MISR_BUFF_SIZE); |
| if (copy_from_user(buf, user_buf, buff_copy)) { |
| DPU_ERROR("buffer copy failed\n"); |
| return -EINVAL; |
| } |
| |
| buf[buff_copy] = 0; /* end of string */ |
| |
| if (sscanf(buf, "%u %u", &enable, &frame_count) != 2) |
| return -EINVAL; |
| |
| rc = _dpu_crtc_power_enable(dpu_crtc, true); |
| if (rc) |
| return rc; |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| dpu_crtc->misr_enable = enable; |
| dpu_crtc->misr_frame_count = frame_count; |
| for (i = 0; i < dpu_crtc->num_mixers; ++i) { |
| dpu_crtc->misr_data[i] = 0; |
| m = &dpu_crtc->mixers[i]; |
| if (!m->hw_lm || !m->hw_lm->ops.setup_misr) |
| continue; |
| |
| m->hw_lm->ops.setup_misr(m->hw_lm, enable, frame_count); |
| } |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| _dpu_crtc_power_enable(dpu_crtc, false); |
| |
| return count; |
| } |
| |
| static ssize_t _dpu_crtc_misr_read(struct file *file, |
| char __user *user_buff, size_t count, loff_t *ppos) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_crtc_mixer *m; |
| int i = 0, rc; |
| u32 misr_status; |
| ssize_t len = 0; |
| char buf[MISR_BUFF_SIZE + 1] = {'\0'}; |
| |
| if (*ppos) |
| return 0; |
| |
| if (!file || !file->private_data) |
| return -EINVAL; |
| |
| dpu_crtc = file->private_data; |
| rc = _dpu_crtc_power_enable(dpu_crtc, true); |
| if (rc) |
| return rc; |
| |
| mutex_lock(&dpu_crtc->crtc_lock); |
| if (!dpu_crtc->misr_enable) { |
| len += snprintf(buf + len, MISR_BUFF_SIZE - len, |
| "disabled\n"); |
| goto buff_check; |
| } |
| |
| for (i = 0; i < dpu_crtc->num_mixers; ++i) { |
| m = &dpu_crtc->mixers[i]; |
| if (!m->hw_lm || !m->hw_lm->ops.collect_misr) |
| continue; |
| |
| misr_status = m->hw_lm->ops.collect_misr(m->hw_lm); |
| dpu_crtc->misr_data[i] = misr_status ? misr_status : |
| dpu_crtc->misr_data[i]; |
| len += snprintf(buf + len, MISR_BUFF_SIZE - len, "lm idx:%d\n", |
| m->hw_lm->idx - LM_0); |
| len += snprintf(buf + len, MISR_BUFF_SIZE - len, "0x%x\n", |
| dpu_crtc->misr_data[i]); |
| } |
| |
| buff_check: |
| if (count <= len) { |
| len = 0; |
| goto end; |
| } |
| |
| if (copy_to_user(user_buff, buf, len)) { |
| len = -EFAULT; |
| goto end; |
| } |
| |
| *ppos += len; /* increase offset */ |
| |
| end: |
| mutex_unlock(&dpu_crtc->crtc_lock); |
| _dpu_crtc_power_enable(dpu_crtc, false); |
| return len; |
| } |
| |
| #define DEFINE_DPU_DEBUGFS_SEQ_FOPS(__prefix) \ |
| static int __prefix ## _open(struct inode *inode, struct file *file) \ |
| { \ |
| return single_open(file, __prefix ## _show, inode->i_private); \ |
| } \ |
| static const struct file_operations __prefix ## _fops = { \ |
| .owner = THIS_MODULE, \ |
| .open = __prefix ## _open, \ |
| .release = single_release, \ |
| .read = seq_read, \ |
| .llseek = seq_lseek, \ |
| } |
| |
| static int dpu_crtc_debugfs_state_show(struct seq_file *s, void *v) |
| { |
| struct drm_crtc *crtc = (struct drm_crtc *) s->private; |
| struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); |
| struct dpu_crtc_res *res; |
| struct dpu_crtc_respool *rp; |
| int i; |
| |
| seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc)); |
| seq_printf(s, "intf_mode: %d\n", dpu_crtc_get_intf_mode(crtc)); |
| seq_printf(s, "core_clk_rate: %llu\n", |
| dpu_crtc->cur_perf.core_clk_rate); |
| for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC; |
| i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) { |
| seq_printf(s, "bw_ctl[%s]: %llu\n", |
| dpu_power_handle_get_dbus_name(i), |
| dpu_crtc->cur_perf.bw_ctl[i]); |
| seq_printf(s, "max_per_pipe_ib[%s]: %llu\n", |
| dpu_power_handle_get_dbus_name(i), |
| dpu_crtc->cur_perf.max_per_pipe_ib[i]); |
| } |
| |
| mutex_lock(&dpu_crtc->rp_lock); |
| list_for_each_entry(rp, &dpu_crtc->rp_head, rp_list) { |
| seq_printf(s, "rp.%d: ", rp->sequence_id); |
| list_for_each_entry(res, &rp->res_list, list) |
| seq_printf(s, "0x%x/0x%llx/%pK/%d ", |
| res->type, res->tag, res->val, |
| atomic_read(&res->refcount)); |
| seq_puts(s, "\n"); |
| } |
| mutex_unlock(&dpu_crtc->rp_lock); |
| |
| return 0; |
| } |
| DEFINE_DPU_DEBUGFS_SEQ_FOPS(dpu_crtc_debugfs_state); |
| |
| static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| struct dpu_kms *dpu_kms; |
| |
| static const struct file_operations debugfs_status_fops = { |
| .open = _dpu_debugfs_status_open, |
| .read = seq_read, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| static const struct file_operations debugfs_misr_fops = { |
| .open = simple_open, |
| .read = _dpu_crtc_misr_read, |
| .write = _dpu_crtc_misr_setup, |
| }; |
| |
| if (!crtc) |
| return -EINVAL; |
| dpu_crtc = to_dpu_crtc(crtc); |
| |
| dpu_kms = _dpu_crtc_get_kms(crtc); |
| if (!dpu_kms) |
| return -EINVAL; |
| |
| dpu_crtc->debugfs_root = debugfs_create_dir(dpu_crtc->name, |
| crtc->dev->primary->debugfs_root); |
| if (!dpu_crtc->debugfs_root) |
| return -ENOMEM; |
| |
| /* don't error check these */ |
| debugfs_create_file("status", 0400, |
| dpu_crtc->debugfs_root, |
| dpu_crtc, &debugfs_status_fops); |
| debugfs_create_file("state", 0600, |
| dpu_crtc->debugfs_root, |
| &dpu_crtc->base, |
| &dpu_crtc_debugfs_state_fops); |
| debugfs_create_file("misr_data", 0600, dpu_crtc->debugfs_root, |
| dpu_crtc, &debugfs_misr_fops); |
| |
| return 0; |
| } |
| |
| static void _dpu_crtc_destroy_debugfs(struct drm_crtc *crtc) |
| { |
| struct dpu_crtc *dpu_crtc; |
| |
| if (!crtc) |
| return; |
| dpu_crtc = to_dpu_crtc(crtc); |
| debugfs_remove_recursive(dpu_crtc->debugfs_root); |
| } |
| #else |
| static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc) |
| { |
| return 0; |
| } |
| |
| static void _dpu_crtc_destroy_debugfs(struct drm_crtc *crtc) |
| { |
| } |
| #endif /* CONFIG_DEBUG_FS */ |
| |
| static int dpu_crtc_late_register(struct drm_crtc *crtc) |
| { |
| return _dpu_crtc_init_debugfs(crtc); |
| } |
| |
| static void dpu_crtc_early_unregister(struct drm_crtc *crtc) |
| { |
| _dpu_crtc_destroy_debugfs(crtc); |
| } |
| |
| static const struct drm_crtc_funcs dpu_crtc_funcs = { |
| .set_config = drm_atomic_helper_set_config, |
| .destroy = dpu_crtc_destroy, |
| .page_flip = drm_atomic_helper_page_flip, |
| .reset = dpu_crtc_reset, |
| .atomic_duplicate_state = dpu_crtc_duplicate_state, |
| .atomic_destroy_state = dpu_crtc_destroy_state, |
| .late_register = dpu_crtc_late_register, |
| .early_unregister = dpu_crtc_early_unregister, |
| }; |
| |
| static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = { |
| .disable = dpu_crtc_disable, |
| .atomic_enable = dpu_crtc_enable, |
| .atomic_check = dpu_crtc_atomic_check, |
| .atomic_begin = dpu_crtc_atomic_begin, |
| .atomic_flush = dpu_crtc_atomic_flush, |
| }; |
| |
| /* initialize crtc */ |
| struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane) |
| { |
| struct drm_crtc *crtc = NULL; |
| struct dpu_crtc *dpu_crtc = NULL; |
| struct msm_drm_private *priv = NULL; |
| struct dpu_kms *kms = NULL; |
| int i; |
| |
| priv = dev->dev_private; |
| kms = to_dpu_kms(priv->kms); |
| |
| dpu_crtc = kzalloc(sizeof(*dpu_crtc), GFP_KERNEL); |
| if (!dpu_crtc) |
| return ERR_PTR(-ENOMEM); |
| |
| crtc = &dpu_crtc->base; |
| crtc->dev = dev; |
| |
| mutex_init(&dpu_crtc->crtc_lock); |
| spin_lock_init(&dpu_crtc->spin_lock); |
| atomic_set(&dpu_crtc->frame_pending, 0); |
| |
| mutex_init(&dpu_crtc->rp_lock); |
| INIT_LIST_HEAD(&dpu_crtc->rp_head); |
| |
| init_completion(&dpu_crtc->frame_done_comp); |
| |
| INIT_LIST_HEAD(&dpu_crtc->frame_event_list); |
| |
| for (i = 0; i < ARRAY_SIZE(dpu_crtc->frame_events); i++) { |
| INIT_LIST_HEAD(&dpu_crtc->frame_events[i].list); |
| list_add(&dpu_crtc->frame_events[i].list, |
| &dpu_crtc->frame_event_list); |
| kthread_init_work(&dpu_crtc->frame_events[i].work, |
| dpu_crtc_frame_event_work); |
| } |
| |
| drm_crtc_init_with_planes(dev, crtc, plane, NULL, &dpu_crtc_funcs, |
| NULL); |
| |
| drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs); |
| plane->crtc = crtc; |
| |
| /* save user friendly CRTC name for later */ |
| snprintf(dpu_crtc->name, DPU_CRTC_NAME_SIZE, "crtc%u", crtc->base.id); |
| |
| /* initialize event handling */ |
| spin_lock_init(&dpu_crtc->event_lock); |
| |
| dpu_crtc->phandle = &kms->phandle; |
| |
| DPU_DEBUG("%s: successfully initialized crtc\n", dpu_crtc->name); |
| return crtc; |
| } |