diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c')
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 1203 |
1 files changed, 1203 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c new file mode 100644 index 000000000000..9893e43ba6c5 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -0,0 +1,1203 @@ +/* + * Copyright (c) 2014-2015 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/>. + */ + +#include <linux/sort.h> +#include <drm/drm_mode.h> +#include <drm/drm_crtc.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_flip_work.h> + +#include "mdp5_kms.h" + +#define CURSOR_WIDTH 64 +#define CURSOR_HEIGHT 64 + +struct mdp5_crtc { + struct drm_crtc base; + int id; + bool enabled; + + spinlock_t lm_lock; /* protect REG_MDP5_LM_* registers */ + + /* if there is a pending flip, these will be non-null: */ + struct drm_pending_vblank_event *event; + + /* Bits have been flushed at the last commit, + * used to decide if a vsync has happened since last commit. + */ + u32 flushed_mask; + +#define PENDING_CURSOR 0x1 +#define PENDING_FLIP 0x2 + atomic_t pending; + + /* for unref'ing cursor bo's after scanout completes: */ + struct drm_flip_work unref_cursor_work; + + struct mdp_irq vblank; + struct mdp_irq err; + struct mdp_irq pp_done; + + struct completion pp_completion; + + bool lm_cursor_enabled; + + struct { + /* protect REG_MDP5_LM_CURSOR* registers and cursor scanout_bo*/ + spinlock_t lock; + + /* current cursor being scanned out: */ + struct drm_gem_object *scanout_bo; + uint64_t iova; + uint32_t width, height; + uint32_t x, y; + } cursor; +}; +#define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base) + +static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc); + +static struct mdp5_kms *get_kms(struct drm_crtc *crtc) +{ + struct msm_drm_private *priv = crtc->dev->dev_private; + return to_mdp5_kms(to_mdp_kms(priv->kms)); +} + +static void request_pending(struct drm_crtc *crtc, uint32_t pending) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + + atomic_or(pending, &mdp5_crtc->pending); + mdp_irq_register(&get_kms(crtc)->base, &mdp5_crtc->vblank); +} + +static void request_pp_done_pending(struct drm_crtc *crtc) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + reinit_completion(&mdp5_crtc->pp_completion); +} + +static u32 crtc_flush(struct drm_crtc *crtc, u32 flush_mask) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_ctl *ctl = mdp5_cstate->ctl; + struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline; + bool start = !mdp5_cstate->defer_start; + + mdp5_cstate->defer_start = false; + + DBG("%s: flush=%08x", crtc->name, flush_mask); + + return mdp5_ctl_commit(ctl, pipeline, flush_mask, start); +} + +/* + * flush updates, to make sure hw is updated to new scanout fb, + * so that we can safely queue unref to current fb (ie. next + * vblank we know hw is done w/ previous scanout_fb). + */ +static u32 crtc_flush_all(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_hw_mixer *mixer, *r_mixer; + struct drm_plane *plane; + uint32_t flush_mask = 0; + + /* this should not happen: */ + if (WARN_ON(!mdp5_cstate->ctl)) + return 0; + + drm_atomic_crtc_for_each_plane(plane, crtc) { + if (!plane->state->visible) + continue; + flush_mask |= mdp5_plane_get_flush(plane); + } + + mixer = mdp5_cstate->pipeline.mixer; + flush_mask |= mdp_ctl_flush_mask_lm(mixer->lm); + + r_mixer = mdp5_cstate->pipeline.r_mixer; + if (r_mixer) + flush_mask |= mdp_ctl_flush_mask_lm(r_mixer->lm); + + return crtc_flush(crtc, flush_mask); +} + +/* if file!=NULL, this is preclose potential cancel-flip path */ +static void complete_flip(struct drm_crtc *crtc, struct drm_file *file) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline; + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_ctl *ctl = mdp5_cstate->ctl; + struct drm_device *dev = crtc->dev; + struct drm_pending_vblank_event *event; + unsigned long flags; + + spin_lock_irqsave(&dev->event_lock, flags); + event = mdp5_crtc->event; + if (event) { + mdp5_crtc->event = NULL; + DBG("%s: send event: %p", crtc->name, event); + drm_crtc_send_vblank_event(crtc, event); + } + spin_unlock_irqrestore(&dev->event_lock, flags); + + if (ctl && !crtc->state->enable) { + /* set STAGE_UNUSED for all layers */ + mdp5_ctl_blend(ctl, pipeline, NULL, NULL, 0, 0); + /* XXX: What to do here? */ + /* mdp5_crtc->ctl = NULL; */ + } +} + +static void unref_cursor_worker(struct drm_flip_work *work, void *val) +{ + struct mdp5_crtc *mdp5_crtc = + container_of(work, struct mdp5_crtc, unref_cursor_work); + struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base); + struct msm_kms *kms = &mdp5_kms->base.base; + + msm_gem_put_iova(val, kms->aspace); + drm_gem_object_put_unlocked(val); +} + +static void mdp5_crtc_destroy(struct drm_crtc *crtc) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + + drm_crtc_cleanup(crtc); + drm_flip_work_cleanup(&mdp5_crtc->unref_cursor_work); + + kfree(mdp5_crtc); +} + +static inline u32 mdp5_lm_use_fg_alpha_mask(enum mdp_mixer_stage_id stage) +{ + switch (stage) { + case STAGE0: return MDP5_LM_BLEND_COLOR_OUT_STAGE0_FG_ALPHA; + case STAGE1: return MDP5_LM_BLEND_COLOR_OUT_STAGE1_FG_ALPHA; + case STAGE2: return MDP5_LM_BLEND_COLOR_OUT_STAGE2_FG_ALPHA; + case STAGE3: return MDP5_LM_BLEND_COLOR_OUT_STAGE3_FG_ALPHA; + case STAGE4: return MDP5_LM_BLEND_COLOR_OUT_STAGE4_FG_ALPHA; + case STAGE5: return MDP5_LM_BLEND_COLOR_OUT_STAGE5_FG_ALPHA; + case STAGE6: return MDP5_LM_BLEND_COLOR_OUT_STAGE6_FG_ALPHA; + default: + return 0; + } +} + +/* + * left/right pipe offsets for the stage array used in blend_setup() + */ +#define PIPE_LEFT 0 +#define PIPE_RIGHT 1 + +/* + * blend_setup() - blend all the planes of a CRTC + * + * If no base layer is available, border will be enabled as the base layer. + * Otherwise all layers will be blended based on their stage calculated + * in mdp5_crtc_atomic_check. + */ +static void blend_setup(struct drm_crtc *crtc) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline; + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct drm_plane *plane; + const struct mdp5_cfg_hw *hw_cfg; + struct mdp5_plane_state *pstate, *pstates[STAGE_MAX + 1] = {NULL}; + const struct mdp_format *format; + struct mdp5_hw_mixer *mixer = pipeline->mixer; + uint32_t lm = mixer->lm; + struct mdp5_hw_mixer *r_mixer = pipeline->r_mixer; + uint32_t r_lm = r_mixer ? r_mixer->lm : 0; + struct mdp5_ctl *ctl = mdp5_cstate->ctl; + uint32_t blend_op, fg_alpha, bg_alpha, ctl_blend_flags = 0; + unsigned long flags; + enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } }; + enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } }; + int i, plane_cnt = 0; + bool bg_alpha_enabled = false; + u32 mixer_op_mode = 0; + u32 val; +#define blender(stage) ((stage) - STAGE0) + + hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg); + + spin_lock_irqsave(&mdp5_crtc->lm_lock, flags); + + /* ctl could be released already when we are shutting down: */ + /* XXX: Can this happen now? */ + if (!ctl) + goto out; + + /* Collect all plane information */ + drm_atomic_crtc_for_each_plane(plane, crtc) { + enum mdp5_pipe right_pipe; + + if (!plane->state->visible) + continue; + + pstate = to_mdp5_plane_state(plane->state); + pstates[pstate->stage] = pstate; + stage[pstate->stage][PIPE_LEFT] = mdp5_plane_pipe(plane); + /* + * if we have a right mixer, stage the same pipe as we + * have on the left mixer + */ + if (r_mixer) + r_stage[pstate->stage][PIPE_LEFT] = + mdp5_plane_pipe(plane); + /* + * if we have a right pipe (i.e, the plane comprises of 2 + * hwpipes, then stage the right pipe on the right side of both + * the layer mixers + */ + right_pipe = mdp5_plane_right_pipe(plane); + if (right_pipe) { + stage[pstate->stage][PIPE_RIGHT] = right_pipe; + r_stage[pstate->stage][PIPE_RIGHT] = right_pipe; + } + + plane_cnt++; + } + + if (!pstates[STAGE_BASE]) { + ctl_blend_flags |= MDP5_CTL_BLEND_OP_FLAG_BORDER_OUT; + DBG("Border Color is enabled"); + } else if (plane_cnt) { + format = to_mdp_format(msm_framebuffer_format(pstates[STAGE_BASE]->base.fb)); + + if (format->alpha_enable) + bg_alpha_enabled = true; + } + + /* The reset for blending */ + for (i = STAGE0; i <= STAGE_MAX; i++) { + if (!pstates[i]) + continue; + + format = to_mdp_format( + msm_framebuffer_format(pstates[i]->base.fb)); + plane = pstates[i]->base.plane; + blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) | + MDP5_LM_BLEND_OP_MODE_BG_ALPHA(BG_CONST); + fg_alpha = pstates[i]->alpha; + bg_alpha = 0xFF - pstates[i]->alpha; + + if (!format->alpha_enable && bg_alpha_enabled) + mixer_op_mode = 0; + else + mixer_op_mode |= mdp5_lm_use_fg_alpha_mask(i); + + DBG("Stage %d fg_alpha %x bg_alpha %x", i, fg_alpha, bg_alpha); + + if (format->alpha_enable && pstates[i]->premultiplied) { + blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) | + MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL); + if (fg_alpha != 0xff) { + bg_alpha = fg_alpha; + blend_op |= + MDP5_LM_BLEND_OP_MODE_BG_MOD_ALPHA | + MDP5_LM_BLEND_OP_MODE_BG_INV_MOD_ALPHA; + } else { + blend_op |= MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA; + } + } else if (format->alpha_enable) { + blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_PIXEL) | + MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL); + if (fg_alpha != 0xff) { + bg_alpha = fg_alpha; + blend_op |= + MDP5_LM_BLEND_OP_MODE_FG_MOD_ALPHA | + MDP5_LM_BLEND_OP_MODE_FG_INV_MOD_ALPHA | + MDP5_LM_BLEND_OP_MODE_BG_MOD_ALPHA | + MDP5_LM_BLEND_OP_MODE_BG_INV_MOD_ALPHA; + } else { + blend_op |= MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA; + } + } + + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(lm, + blender(i)), blend_op); + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(lm, + blender(i)), fg_alpha); + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(lm, + blender(i)), bg_alpha); + if (r_mixer) { + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(r_lm, + blender(i)), blend_op); + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(r_lm, + blender(i)), fg_alpha); + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(r_lm, + blender(i)), bg_alpha); + } + } + + val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm)); + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm), + val | mixer_op_mode); + if (r_mixer) { + val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm)); + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm), + val | mixer_op_mode); + } + + mdp5_ctl_blend(ctl, pipeline, stage, r_stage, plane_cnt, + ctl_blend_flags); +out: + spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags); +} + +static void mdp5_crtc_mode_set_nofb(struct drm_crtc *crtc) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct mdp5_hw_mixer *mixer = mdp5_cstate->pipeline.mixer; + struct mdp5_hw_mixer *r_mixer = mdp5_cstate->pipeline.r_mixer; + uint32_t lm = mixer->lm; + u32 mixer_width, val; + unsigned long flags; + struct drm_display_mode *mode; + + if (WARN_ON(!crtc->state)) + return; + + mode = &crtc->state->adjusted_mode; + + DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", + crtc->name, mode->base.id, mode->name, + mode->vrefresh, mode->clock, + mode->hdisplay, mode->hsync_start, + mode->hsync_end, mode->htotal, + mode->vdisplay, mode->vsync_start, + mode->vsync_end, mode->vtotal, + mode->type, mode->flags); + + mixer_width = mode->hdisplay; + if (r_mixer) + mixer_width /= 2; + + spin_lock_irqsave(&mdp5_crtc->lm_lock, flags); + mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(lm), + MDP5_LM_OUT_SIZE_WIDTH(mixer_width) | + MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay)); + + /* Assign mixer to LEFT side in source split mode */ + val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm)); + val &= ~MDP5_LM_BLEND_COLOR_OUT_SPLIT_LEFT_RIGHT; + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm), val); + + if (r_mixer) { + u32 r_lm = r_mixer->lm; + + mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(r_lm), + MDP5_LM_OUT_SIZE_WIDTH(mixer_width) | + MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay)); + + /* Assign mixer to RIGHT side in source split mode */ + val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm)); + val |= MDP5_LM_BLEND_COLOR_OUT_SPLIT_LEFT_RIGHT; + mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm), val); + } + + spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags); +} + +static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct device *dev = &mdp5_kms->pdev->dev; + + DBG("%s", crtc->name); + + if (WARN_ON(!mdp5_crtc->enabled)) + return; + + /* Disable/save vblank irq handling before power is disabled */ + drm_crtc_vblank_off(crtc); + + if (mdp5_cstate->cmd_mode) + mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->pp_done); + + mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err); + pm_runtime_put_sync(dev); + + mdp5_crtc->enabled = false; +} + +static void mdp5_crtc_atomic_enable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct device *dev = &mdp5_kms->pdev->dev; + + DBG("%s", crtc->name); + + if (WARN_ON(mdp5_crtc->enabled)) + return; + + pm_runtime_get_sync(dev); + + if (mdp5_crtc->lm_cursor_enabled) { + /* + * Restore LM cursor state, as it might have been lost + * with suspend: + */ + if (mdp5_crtc->cursor.iova) { + unsigned long flags; + + spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags); + mdp5_crtc_restore_cursor(crtc); + spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags); + + mdp5_ctl_set_cursor(mdp5_cstate->ctl, + &mdp5_cstate->pipeline, 0, true); + } else { + mdp5_ctl_set_cursor(mdp5_cstate->ctl, + &mdp5_cstate->pipeline, 0, false); + } + } + + /* Restore vblank irq handling after power is enabled */ + drm_crtc_vblank_on(crtc); + + mdp5_crtc_mode_set_nofb(crtc); + + mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err); + + if (mdp5_cstate->cmd_mode) + mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->pp_done); + + mdp5_crtc->enabled = true; +} + +int mdp5_crtc_setup_pipeline(struct drm_crtc *crtc, + struct drm_crtc_state *new_crtc_state, + bool need_right_mixer) +{ + struct mdp5_crtc_state *mdp5_cstate = + to_mdp5_crtc_state(new_crtc_state); + struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline; + struct mdp5_interface *intf; + bool new_mixer = false; + + new_mixer = !pipeline->mixer; + + if ((need_right_mixer && !pipeline->r_mixer) || + (!need_right_mixer && pipeline->r_mixer)) + new_mixer = true; + + if (new_mixer) { + struct mdp5_hw_mixer *old_mixer = pipeline->mixer; + struct mdp5_hw_mixer *old_r_mixer = pipeline->r_mixer; + u32 caps; + int ret; + + caps = MDP_LM_CAP_DISPLAY; + if (need_right_mixer) + caps |= MDP_LM_CAP_PAIR; + + ret = mdp5_mixer_assign(new_crtc_state->state, crtc, caps, + &pipeline->mixer, need_right_mixer ? + &pipeline->r_mixer : NULL); + if (ret) + return ret; + + mdp5_mixer_release(new_crtc_state->state, old_mixer); + if (old_r_mixer) { + mdp5_mixer_release(new_crtc_state->state, old_r_mixer); + if (!need_right_mixer) + pipeline->r_mixer = NULL; + } + } + + /* + * these should have been already set up in the encoder's atomic + * check (called by drm_atomic_helper_check_modeset) + */ + intf = pipeline->intf; + + mdp5_cstate->err_irqmask = intf2err(intf->num); + mdp5_cstate->vblank_irqmask = intf2vblank(pipeline->mixer, intf); + + if ((intf->type == INTF_DSI) && + (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)) { + mdp5_cstate->pp_done_irqmask = lm2ppdone(pipeline->mixer); + mdp5_cstate->cmd_mode = true; + } else { + mdp5_cstate->pp_done_irqmask = 0; + mdp5_cstate->cmd_mode = false; + } + + return 0; +} + +struct plane_state { + struct drm_plane *plane; + struct mdp5_plane_state *state; +}; + +static int pstate_cmp(const void *a, const void *b) +{ + struct plane_state *pa = (struct plane_state *)a; + struct plane_state *pb = (struct plane_state *)b; + return pa->state->zpos - pb->state->zpos; +} + +/* is there a helper for this? */ +static bool is_fullscreen(struct drm_crtc_state *cstate, + struct drm_plane_state *pstate) +{ + return (pstate->crtc_x <= 0) && (pstate->crtc_y <= 0) && + ((pstate->crtc_x + pstate->crtc_w) >= cstate->mode.hdisplay) && + ((pstate->crtc_y + pstate->crtc_h) >= cstate->mode.vdisplay); +} + +static enum mdp_mixer_stage_id get_start_stage(struct drm_crtc *crtc, + struct drm_crtc_state *new_crtc_state, + struct drm_plane_state *bpstate) +{ + struct mdp5_crtc_state *mdp5_cstate = + to_mdp5_crtc_state(new_crtc_state); + + /* + * if we're in source split mode, it's mandatory to have + * border out on the base stage + */ + if (mdp5_cstate->pipeline.r_mixer) + return STAGE0; + + /* if the bottom-most layer is not fullscreen, we need to use + * it for solid-color: + */ + if (!is_fullscreen(new_crtc_state, bpstate)) + return STAGE0; + + return STAGE_BASE; +} + +static int mdp5_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct drm_plane *plane; + struct drm_device *dev = crtc->dev; + struct plane_state pstates[STAGE_MAX + 1]; + const struct mdp5_cfg_hw *hw_cfg; + const struct drm_plane_state *pstate; + const struct drm_display_mode *mode = &state->adjusted_mode; + bool cursor_plane = false; + bool need_right_mixer = false; + int cnt = 0, i; + int ret; + enum mdp_mixer_stage_id start; + + DBG("%s: check", crtc->name); + + drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) { + if (!pstate->visible) + continue; + + pstates[cnt].plane = plane; + pstates[cnt].state = to_mdp5_plane_state(pstate); + + /* + * if any plane on this crtc uses 2 hwpipes, then we need + * the crtc to have a right hwmixer. + */ + if (pstates[cnt].state->r_hwpipe) + need_right_mixer = true; + cnt++; + + if (plane->type == DRM_PLANE_TYPE_CURSOR) + cursor_plane = true; + } + + /* bail out early if there aren't any planes */ + if (!cnt) + return 0; + + hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg); + + /* + * we need a right hwmixer if the mode's width is greater than a single + * LM's max width + */ + if (mode->hdisplay > hw_cfg->lm.max_width) + need_right_mixer = true; + + ret = mdp5_crtc_setup_pipeline(crtc, state, need_right_mixer); + if (ret) { + dev_err(dev->dev, "couldn't assign mixers %d\n", ret); + return ret; + } + + /* assign a stage based on sorted zpos property */ + sort(pstates, cnt, sizeof(pstates[0]), pstate_cmp, NULL); + + /* trigger a warning if cursor isn't the highest zorder */ + WARN_ON(cursor_plane && + (pstates[cnt - 1].plane->type != DRM_PLANE_TYPE_CURSOR)); + + start = get_start_stage(crtc, state, &pstates[0].state->base); + + /* verify that there are not too many planes attached to crtc + * and that we don't have conflicting mixer stages: + */ + if ((cnt + start - 1) >= hw_cfg->lm.nb_stages) { + dev_err(dev->dev, "too many planes! cnt=%d, start stage=%d\n", + cnt, start); + return -EINVAL; + } + + for (i = 0; i < cnt; i++) { + if (cursor_plane && (i == (cnt - 1))) + pstates[i].state->stage = hw_cfg->lm.nb_stages; + else + pstates[i].state->stage = start + i; + DBG("%s: assign pipe %s on stage=%d", crtc->name, + pstates[i].plane->name, + pstates[i].state->stage); + } + + return 0; +} + +static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + DBG("%s: begin", crtc->name); +} + +static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct drm_device *dev = crtc->dev; + unsigned long flags; + + DBG("%s: event: %p", crtc->name, crtc->state->event); + + WARN_ON(mdp5_crtc->event); + + spin_lock_irqsave(&dev->event_lock, flags); + mdp5_crtc->event = crtc->state->event; + spin_unlock_irqrestore(&dev->event_lock, flags); + + /* + * If no CTL has been allocated in mdp5_crtc_atomic_check(), + * it means we are trying to flush a CRTC whose state is disabled: + * nothing else needs to be done. + */ + /* XXX: Can this happen now ? */ + if (unlikely(!mdp5_cstate->ctl)) + return; + + 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. + */ + if (mdp5_cstate->cmd_mode) + request_pp_done_pending(crtc); + + mdp5_crtc->flushed_mask = crtc_flush_all(crtc); + + /* XXX are we leaking out state here? */ + mdp5_crtc->vblank.irqmask = mdp5_cstate->vblank_irqmask; + mdp5_crtc->err.irqmask = mdp5_cstate->err_irqmask; + mdp5_crtc->pp_done.irqmask = mdp5_cstate->pp_done_irqmask; + + request_pending(crtc, PENDING_FLIP); +} + +static void get_roi(struct drm_crtc *crtc, uint32_t *roi_w, uint32_t *roi_h) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + uint32_t xres = crtc->mode.hdisplay; + uint32_t yres = crtc->mode.vdisplay; + + /* + * Cursor Region Of Interest (ROI) is a plane read from cursor + * buffer to render. The ROI region is determined by the visibility of + * the cursor point. In the default Cursor image the cursor point will + * be at the top left of the cursor image, unless it is specified + * otherwise using hotspot feature. + * + * If the cursor point reaches the right (xres - x < cursor.width) or + * bottom (yres - y < cursor.height) boundary of the screen, then ROI + * width and ROI height need to be evaluated to crop the cursor image + * accordingly. + * (xres-x) will be new cursor width when x > (xres - cursor.width) + * (yres-y) will be new cursor height when y > (yres - cursor.height) + */ + *roi_w = min(mdp5_crtc->cursor.width, xres - + mdp5_crtc->cursor.x); + *roi_h = min(mdp5_crtc->cursor.height, yres - + mdp5_crtc->cursor.y); +} + +static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_kms *mdp5_kms = get_kms(crtc); + const enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL; + uint32_t blendcfg, stride; + uint32_t x, y, width, height; + uint32_t roi_w, roi_h; + int lm; + + assert_spin_locked(&mdp5_crtc->cursor.lock); + + lm = mdp5_cstate->pipeline.mixer->lm; + + x = mdp5_crtc->cursor.x; + y = mdp5_crtc->cursor.y; + width = mdp5_crtc->cursor.width; + height = mdp5_crtc->cursor.height; + + stride = width * drm_format_plane_cpp(DRM_FORMAT_ARGB8888, 0); + + get_roi(crtc, &roi_w, &roi_h); + + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride); + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm), + MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888)); + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_IMG_SIZE(lm), + MDP5_LM_CURSOR_IMG_SIZE_SRC_H(height) | + MDP5_LM_CURSOR_IMG_SIZE_SRC_W(width)); + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm), + MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) | + MDP5_LM_CURSOR_SIZE_ROI_W(roi_w)); + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_START_XY(lm), + MDP5_LM_CURSOR_START_XY_Y_START(y) | + MDP5_LM_CURSOR_START_XY_X_START(x)); + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BASE_ADDR(lm), + mdp5_crtc->cursor.iova); + + blendcfg = MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_EN; + blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_ALPHA_SEL(cur_alpha); + mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BLEND_CONFIG(lm), blendcfg); +} + +static int mdp5_crtc_cursor_set(struct drm_crtc *crtc, + struct drm_file *file, uint32_t handle, + uint32_t width, uint32_t height) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline; + struct drm_device *dev = crtc->dev; + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct platform_device *pdev = mdp5_kms->pdev; + struct msm_kms *kms = &mdp5_kms->base.base; + struct drm_gem_object *cursor_bo, *old_bo = NULL; + struct mdp5_ctl *ctl; + int ret; + uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0); + bool cursor_enable = true; + unsigned long flags; + + if (!mdp5_crtc->lm_cursor_enabled) { + dev_warn(dev->dev, + "cursor_set is deprecated with cursor planes\n"); + return -EINVAL; + } + + if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) { + dev_err(dev->dev, "bad cursor size: %dx%d\n", width, height); + return -EINVAL; + } + + ctl = mdp5_cstate->ctl; + if (!ctl) + return -EINVAL; + + /* don't support LM cursors when we we have source split enabled */ + if (mdp5_cstate->pipeline.r_mixer) + return -EINVAL; + + if (!handle) { + DBG("Cursor off"); + cursor_enable = false; + mdp5_crtc->cursor.iova = 0; + pm_runtime_get_sync(&pdev->dev); + goto set_cursor; + } + + cursor_bo = drm_gem_object_lookup(file, handle); + if (!cursor_bo) + return -ENOENT; + + ret = msm_gem_get_iova(cursor_bo, kms->aspace, + &mdp5_crtc->cursor.iova); + if (ret) + return -EINVAL; + + pm_runtime_get_sync(&pdev->dev); + + spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags); + old_bo = mdp5_crtc->cursor.scanout_bo; + + mdp5_crtc->cursor.scanout_bo = cursor_bo; + mdp5_crtc->cursor.width = width; + mdp5_crtc->cursor.height = height; + + mdp5_crtc_restore_cursor(crtc); + + spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags); + +set_cursor: + ret = mdp5_ctl_set_cursor(ctl, pipeline, 0, cursor_enable); + if (ret) { + dev_err(dev->dev, "failed to %sable cursor: %d\n", + cursor_enable ? "en" : "dis", ret); + goto end; + } + + crtc_flush(crtc, flush_mask); + +end: + pm_runtime_put_sync(&pdev->dev); + if (old_bo) { + drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo); + /* enable vblank to complete cursor work: */ + request_pending(crtc, PENDING_CURSOR); + } + return ret; +} + +static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) +{ + struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0); + struct drm_device *dev = crtc->dev; + uint32_t roi_w; + uint32_t roi_h; + unsigned long flags; + + if (!mdp5_crtc->lm_cursor_enabled) { + dev_warn(dev->dev, + "cursor_move is deprecated with cursor planes\n"); + return -EINVAL; + } + + /* don't support LM cursors when we we have source split enabled */ + if (mdp5_cstate->pipeline.r_mixer) + return -EINVAL; + + /* In case the CRTC is disabled, just drop the cursor update */ + if (unlikely(!crtc->state->enable)) + return 0; + + mdp5_crtc->cursor.x = x = max(x, 0); + mdp5_crtc->cursor.y = y = max(y, 0); + + get_roi(crtc, &roi_w, &roi_h); + + pm_runtime_get_sync(&mdp5_kms->pdev->dev); + + spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags); + mdp5_crtc_restore_cursor(crtc); + spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags); + + crtc_flush(crtc, flush_mask); + + pm_runtime_put_sync(&mdp5_kms->pdev->dev); + + return 0; +} + +static void +mdp5_crtc_atomic_print_state(struct drm_printer *p, + const struct drm_crtc_state *state) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state); + struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline; + struct mdp5_kms *mdp5_kms = get_kms(state->crtc); + + if (WARN_ON(!pipeline)) + return; + + if (mdp5_cstate->ctl) + drm_printf(p, "\tctl=%d\n", mdp5_ctl_get_ctl_id(mdp5_cstate->ctl)); + + drm_printf(p, "\thwmixer=%s\n", pipeline->mixer ? + pipeline->mixer->name : "(null)"); + + if (mdp5_kms->caps & MDP_CAP_SRC_SPLIT) + drm_printf(p, "\tright hwmixer=%s\n", pipeline->r_mixer ? + pipeline->r_mixer->name : "(null)"); + + drm_printf(p, "\tcmd_mode=%d\n", mdp5_cstate->cmd_mode); +} + +static void mdp5_crtc_reset(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate; + + if (crtc->state) { + __drm_atomic_helper_crtc_destroy_state(crtc->state); + kfree(to_mdp5_crtc_state(crtc->state)); + } + + mdp5_cstate = kzalloc(sizeof(*mdp5_cstate), GFP_KERNEL); + + if (mdp5_cstate) { + mdp5_cstate->base.crtc = crtc; + crtc->state = &mdp5_cstate->base; + } +} + +static struct drm_crtc_state * +mdp5_crtc_duplicate_state(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate; + + if (WARN_ON(!crtc->state)) + return NULL; + + mdp5_cstate = kmemdup(to_mdp5_crtc_state(crtc->state), + sizeof(*mdp5_cstate), GFP_KERNEL); + if (!mdp5_cstate) + return NULL; + + __drm_atomic_helper_crtc_duplicate_state(crtc, &mdp5_cstate->base); + + return &mdp5_cstate->base; +} + +static void mdp5_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state); + + __drm_atomic_helper_crtc_destroy_state(state); + + kfree(mdp5_cstate); +} + +static const struct drm_crtc_funcs mdp5_crtc_funcs = { + .set_config = drm_atomic_helper_set_config, + .destroy = mdp5_crtc_destroy, + .page_flip = drm_atomic_helper_page_flip, + .reset = mdp5_crtc_reset, + .atomic_duplicate_state = mdp5_crtc_duplicate_state, + .atomic_destroy_state = mdp5_crtc_destroy_state, + .cursor_set = mdp5_crtc_cursor_set, + .cursor_move = mdp5_crtc_cursor_move, + .atomic_print_state = mdp5_crtc_atomic_print_state, +}; + +static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = { + .mode_set_nofb = mdp5_crtc_mode_set_nofb, + .atomic_check = mdp5_crtc_atomic_check, + .atomic_begin = mdp5_crtc_atomic_begin, + .atomic_flush = mdp5_crtc_atomic_flush, + .atomic_enable = mdp5_crtc_atomic_enable, + .atomic_disable = mdp5_crtc_atomic_disable, +}; + +static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus) +{ + struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, vblank); + struct drm_crtc *crtc = &mdp5_crtc->base; + struct msm_drm_private *priv = crtc->dev->dev_private; + unsigned pending; + + mdp_irq_unregister(&get_kms(crtc)->base, &mdp5_crtc->vblank); + + pending = atomic_xchg(&mdp5_crtc->pending, 0); + + if (pending & PENDING_FLIP) { + complete_flip(crtc, NULL); + } + + if (pending & PENDING_CURSOR) + drm_flip_work_commit(&mdp5_crtc->unref_cursor_work, priv->wq); +} + +static void mdp5_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus) +{ + struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, err); + + DBG("%s: error: %08x", mdp5_crtc->base.name, irqstatus); +} + +static void mdp5_crtc_pp_done_irq(struct mdp_irq *irq, uint32_t irqstatus) +{ + struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, + pp_done); + + complete(&mdp5_crtc->pp_completion); +} + +static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + int ret; + + ret = wait_for_completion_timeout(&mdp5_crtc->pp_completion, + msecs_to_jiffies(50)); + if (ret == 0) + dev_warn(dev->dev, "pp done time out, lm=%d\n", + mdp5_cstate->pipeline.mixer->lm); +} + +static void mdp5_crtc_wait_for_flush_done(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_ctl *ctl = mdp5_cstate->ctl; + int ret; + + /* Should not call this function if crtc is disabled. */ + if (!ctl) + return; + + ret = drm_crtc_vblank_get(crtc); + if (ret) + return; + + ret = wait_event_timeout(dev->vblank[drm_crtc_index(crtc)].queue, + ((mdp5_ctl_get_commit_status(ctl) & + mdp5_crtc->flushed_mask) == 0), + msecs_to_jiffies(50)); + if (ret <= 0) + dev_warn(dev->dev, "vblank time out, crtc=%d\n", mdp5_crtc->id); + + mdp5_crtc->flushed_mask = 0; + + drm_crtc_vblank_put(crtc); +} + +uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc) +{ + struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); + return mdp5_crtc->vblank.irqmask; +} + +void mdp5_crtc_set_pipeline(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_kms *mdp5_kms = get_kms(crtc); + + /* should this be done elsewhere ? */ + mdp_irq_update(&mdp5_kms->base); + + mdp5_ctl_set_pipeline(mdp5_cstate->ctl, &mdp5_cstate->pipeline); +} + +struct mdp5_ctl *mdp5_crtc_get_ctl(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + + return mdp5_cstate->ctl; +} + +struct mdp5_hw_mixer *mdp5_crtc_get_mixer(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate; + + if (WARN_ON(!crtc)) + return ERR_PTR(-EINVAL); + + mdp5_cstate = to_mdp5_crtc_state(crtc->state); + + return WARN_ON(!mdp5_cstate->pipeline.mixer) ? + ERR_PTR(-EINVAL) : mdp5_cstate->pipeline.mixer; +} + +struct mdp5_pipeline *mdp5_crtc_get_pipeline(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate; + + if (WARN_ON(!crtc)) + return ERR_PTR(-EINVAL); + + mdp5_cstate = to_mdp5_crtc_state(crtc->state); + + return &mdp5_cstate->pipeline; +} + +void mdp5_crtc_wait_for_commit_done(struct drm_crtc *crtc) +{ + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + + if (mdp5_cstate->cmd_mode) + mdp5_crtc_wait_for_pp_done(crtc); + else + mdp5_crtc_wait_for_flush_done(crtc); +} + +/* initialize crtc */ +struct drm_crtc *mdp5_crtc_init(struct drm_device *dev, + struct drm_plane *plane, + struct drm_plane *cursor_plane, int id) +{ + struct drm_crtc *crtc = NULL; + struct mdp5_crtc *mdp5_crtc; + + mdp5_crtc = kzalloc(sizeof(*mdp5_crtc), GFP_KERNEL); + if (!mdp5_crtc) + return ERR_PTR(-ENOMEM); + + crtc = &mdp5_crtc->base; + + mdp5_crtc->id = id; + + spin_lock_init(&mdp5_crtc->lm_lock); + spin_lock_init(&mdp5_crtc->cursor.lock); + init_completion(&mdp5_crtc->pp_completion); + + mdp5_crtc->vblank.irq = mdp5_crtc_vblank_irq; + mdp5_crtc->err.irq = mdp5_crtc_err_irq; + mdp5_crtc->pp_done.irq = mdp5_crtc_pp_done_irq; + + mdp5_crtc->lm_cursor_enabled = cursor_plane ? false : true; + + drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane, + &mdp5_crtc_funcs, NULL); + + drm_flip_work_init(&mdp5_crtc->unref_cursor_work, + "unref cursor", unref_cursor_worker); + + drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs); + plane->crtc = crtc; + + return crtc; +} |