diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c | 670 |
1 files changed, 670 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c new file mode 100644 index 000000000000..6e5e1aa54ce1 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c @@ -0,0 +1,670 @@ +/* + * 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 <drm/drm_crtc.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_flip_work.h> +#include <drm/drm_mode.h> + +#include "mdp4_kms.h" + +struct mdp4_crtc { + struct drm_crtc base; + char name[8]; + int id; + int ovlp; + enum mdp4_dma dma; + bool enabled; + + /* which mixer/encoder we route output to: */ + int mixer; + + struct { + spinlock_t lock; + bool stale; + uint32_t width, height; + uint32_t x, y; + + /* next cursor to scan-out: */ + uint32_t next_iova; + struct drm_gem_object *next_bo; + + /* current cursor being scanned out: */ + struct drm_gem_object *scanout_bo; + } cursor; + + + /* 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; +}; +#define to_mdp4_crtc(x) container_of(x, struct mdp4_crtc, base) + +static struct mdp4_kms *get_kms(struct drm_crtc *crtc) +{ + struct msm_drm_private *priv = crtc->dev->dev_private; + return to_mdp4_kms(to_mdp_kms(priv->kms)); +} + +static void request_pending(struct drm_crtc *crtc, uint32_t pending) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + + atomic_or(pending, &mdp4_crtc->pending); + mdp_irq_register(&get_kms(crtc)->base, &mdp4_crtc->vblank); +} + +static void crtc_flush(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + struct drm_plane *plane; + uint32_t flush = 0; + + drm_atomic_crtc_for_each_plane(plane, crtc) { + enum mdp4_pipe pipe_id = mdp4_plane_pipe(plane); + flush |= pipe2flush(pipe_id); + } + + flush |= ovlp2flush(mdp4_crtc->ovlp); + + DBG("%s: flush=%08x", mdp4_crtc->name, flush); + + mdp4_crtc->flushed_mask = flush; + + mdp4_write(mdp4_kms, REG_MDP4_OVERLAY_FLUSH, flush); +} + +/* if file!=NULL, this is preclose potential cancel-flip path */ +static void complete_flip(struct drm_crtc *crtc, struct drm_file *file) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct drm_device *dev = crtc->dev; + struct drm_pending_vblank_event *event; + unsigned long flags; + + spin_lock_irqsave(&dev->event_lock, flags); + event = mdp4_crtc->event; + if (event) { + mdp4_crtc->event = NULL; + DBG("%s: send event: %p", mdp4_crtc->name, event); + drm_crtc_send_vblank_event(crtc, event); + } + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +static void unref_cursor_worker(struct drm_flip_work *work, void *val) +{ + struct mdp4_crtc *mdp4_crtc = + container_of(work, struct mdp4_crtc, unref_cursor_work); + struct mdp4_kms *mdp4_kms = get_kms(&mdp4_crtc->base); + struct msm_kms *kms = &mdp4_kms->base.base; + + msm_gem_put_iova(val, kms->aspace); + drm_gem_object_put_unlocked(val); +} + +static void mdp4_crtc_destroy(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + + drm_crtc_cleanup(crtc); + drm_flip_work_cleanup(&mdp4_crtc->unref_cursor_work); + + kfree(mdp4_crtc); +} + +/* statically (for now) map planes to mixer stage (z-order): */ +static const int idxs[] = { + [VG1] = 1, + [VG2] = 2, + [RGB1] = 0, + [RGB2] = 0, + [RGB3] = 0, + [VG3] = 3, + [VG4] = 4, + +}; + +/* setup mixer config, for which we need to consider all crtc's and + * the planes attached to them + * + * TODO may possibly need some extra locking here + */ +static void setup_mixer(struct mdp4_kms *mdp4_kms) +{ + struct drm_mode_config *config = &mdp4_kms->dev->mode_config; + struct drm_crtc *crtc; + uint32_t mixer_cfg = 0; + static const enum mdp_mixer_stage_id stages[] = { + STAGE_BASE, STAGE0, STAGE1, STAGE2, STAGE3, + }; + + list_for_each_entry(crtc, &config->crtc_list, head) { + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct drm_plane *plane; + + drm_atomic_crtc_for_each_plane(plane, crtc) { + enum mdp4_pipe pipe_id = mdp4_plane_pipe(plane); + int idx = idxs[pipe_id]; + mixer_cfg = mixercfg(mixer_cfg, mdp4_crtc->mixer, + pipe_id, stages[idx]); + } + } + + mdp4_write(mdp4_kms, REG_MDP4_LAYERMIXER_IN_CFG, mixer_cfg); +} + +static void blend_setup(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + struct drm_plane *plane; + int i, ovlp = mdp4_crtc->ovlp; + bool alpha[4]= { false, false, false, false }; + + mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_LOW0(ovlp), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_LOW1(ovlp), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_HIGH0(ovlp), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_HIGH1(ovlp), 0); + + drm_atomic_crtc_for_each_plane(plane, crtc) { + enum mdp4_pipe pipe_id = mdp4_plane_pipe(plane); + int idx = idxs[pipe_id]; + if (idx > 0) { + const struct mdp_format *format = + to_mdp_format(msm_framebuffer_format(plane->fb)); + alpha[idx-1] = format->alpha_enable; + } + } + + for (i = 0; i < 4; i++) { + uint32_t op; + + if (alpha[i]) { + op = MDP4_OVLP_STAGE_OP_FG_ALPHA(FG_PIXEL) | + MDP4_OVLP_STAGE_OP_BG_ALPHA(FG_PIXEL) | + MDP4_OVLP_STAGE_OP_BG_INV_ALPHA; + } else { + op = MDP4_OVLP_STAGE_OP_FG_ALPHA(FG_CONST) | + MDP4_OVLP_STAGE_OP_BG_ALPHA(BG_CONST); + } + + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_FG_ALPHA(ovlp, i), 0xff); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_BG_ALPHA(ovlp, i), 0x00); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_OP(ovlp, i), op); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_CO3(ovlp, i), 1); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_LOW0(ovlp, i), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_LOW1(ovlp, i), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_HIGH0(ovlp, i), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_HIGH1(ovlp, i), 0); + } + + setup_mixer(mdp4_kms); +} + +static void mdp4_crtc_mode_set_nofb(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + enum mdp4_dma dma = mdp4_crtc->dma; + int ovlp = mdp4_crtc->ovlp; + 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", + mdp4_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); + + mdp4_write(mdp4_kms, REG_MDP4_DMA_SRC_SIZE(dma), + MDP4_DMA_SRC_SIZE_WIDTH(mode->hdisplay) | + MDP4_DMA_SRC_SIZE_HEIGHT(mode->vdisplay)); + + /* take data from pipe: */ + mdp4_write(mdp4_kms, REG_MDP4_DMA_SRC_BASE(dma), 0); + mdp4_write(mdp4_kms, REG_MDP4_DMA_SRC_STRIDE(dma), 0); + mdp4_write(mdp4_kms, REG_MDP4_DMA_DST_SIZE(dma), + MDP4_DMA_DST_SIZE_WIDTH(0) | + MDP4_DMA_DST_SIZE_HEIGHT(0)); + + mdp4_write(mdp4_kms, REG_MDP4_OVLP_BASE(ovlp), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_SIZE(ovlp), + MDP4_OVLP_SIZE_WIDTH(mode->hdisplay) | + MDP4_OVLP_SIZE_HEIGHT(mode->vdisplay)); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STRIDE(ovlp), 0); + + mdp4_write(mdp4_kms, REG_MDP4_OVLP_CFG(ovlp), 1); + + if (dma == DMA_E) { + mdp4_write(mdp4_kms, REG_MDP4_DMA_E_QUANT(0), 0x00ff0000); + mdp4_write(mdp4_kms, REG_MDP4_DMA_E_QUANT(1), 0x00ff0000); + mdp4_write(mdp4_kms, REG_MDP4_DMA_E_QUANT(2), 0x00ff0000); + } +} + +static void mdp4_crtc_atomic_disable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + + DBG("%s", mdp4_crtc->name); + + if (WARN_ON(!mdp4_crtc->enabled)) + return; + + /* Disable/save vblank irq handling before power is disabled */ + drm_crtc_vblank_off(crtc); + + mdp_irq_unregister(&mdp4_kms->base, &mdp4_crtc->err); + mdp4_disable(mdp4_kms); + + mdp4_crtc->enabled = false; +} + +static void mdp4_crtc_atomic_enable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + + DBG("%s", mdp4_crtc->name); + + if (WARN_ON(mdp4_crtc->enabled)) + return; + + mdp4_enable(mdp4_kms); + + /* Restore vblank irq handling after power is enabled */ + drm_crtc_vblank_on(crtc); + + mdp_irq_register(&mdp4_kms->base, &mdp4_crtc->err); + + crtc_flush(crtc); + + mdp4_crtc->enabled = true; +} + +static int mdp4_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + DBG("%s: check", mdp4_crtc->name); + // TODO anything else to check? + return 0; +} + +static void mdp4_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + DBG("%s: begin", mdp4_crtc->name); +} + +static void mdp4_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct drm_device *dev = crtc->dev; + unsigned long flags; + + DBG("%s: event: %p", mdp4_crtc->name, crtc->state->event); + + WARN_ON(mdp4_crtc->event); + + spin_lock_irqsave(&dev->event_lock, flags); + mdp4_crtc->event = crtc->state->event; + spin_unlock_irqrestore(&dev->event_lock, flags); + + blend_setup(crtc); + crtc_flush(crtc); + request_pending(crtc, PENDING_FLIP); +} + +#define CURSOR_WIDTH 64 +#define CURSOR_HEIGHT 64 + +/* called from IRQ to update cursor related registers (if needed). The + * cursor registers, other than x/y position, appear not to be double + * buffered, and changing them other than from vblank seems to trigger + * underflow. + */ +static void update_cursor(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + struct msm_kms *kms = &mdp4_kms->base.base; + enum mdp4_dma dma = mdp4_crtc->dma; + unsigned long flags; + + spin_lock_irqsave(&mdp4_crtc->cursor.lock, flags); + if (mdp4_crtc->cursor.stale) { + struct drm_gem_object *next_bo = mdp4_crtc->cursor.next_bo; + struct drm_gem_object *prev_bo = mdp4_crtc->cursor.scanout_bo; + uint64_t iova = mdp4_crtc->cursor.next_iova; + + if (next_bo) { + /* take a obj ref + iova ref when we start scanning out: */ + drm_gem_object_get(next_bo); + msm_gem_get_iova(next_bo, kms->aspace, &iova); + + /* enable cursor: */ + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_SIZE(dma), + MDP4_DMA_CURSOR_SIZE_WIDTH(mdp4_crtc->cursor.width) | + MDP4_DMA_CURSOR_SIZE_HEIGHT(mdp4_crtc->cursor.height)); + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BASE(dma), iova); + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BLEND_CONFIG(dma), + MDP4_DMA_CURSOR_BLEND_CONFIG_FORMAT(CURSOR_ARGB) | + MDP4_DMA_CURSOR_BLEND_CONFIG_CURSOR_EN); + } else { + /* disable cursor: */ + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BASE(dma), + mdp4_kms->blank_cursor_iova); + } + + /* and drop the iova ref + obj rev when done scanning out: */ + if (prev_bo) + drm_flip_work_queue(&mdp4_crtc->unref_cursor_work, prev_bo); + + mdp4_crtc->cursor.scanout_bo = next_bo; + mdp4_crtc->cursor.stale = false; + } + + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_POS(dma), + MDP4_DMA_CURSOR_POS_X(mdp4_crtc->cursor.x) | + MDP4_DMA_CURSOR_POS_Y(mdp4_crtc->cursor.y)); + + spin_unlock_irqrestore(&mdp4_crtc->cursor.lock, flags); +} + +static int mdp4_crtc_cursor_set(struct drm_crtc *crtc, + struct drm_file *file_priv, uint32_t handle, + uint32_t width, uint32_t height) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + struct msm_kms *kms = &mdp4_kms->base.base; + struct drm_device *dev = crtc->dev; + struct drm_gem_object *cursor_bo, *old_bo; + unsigned long flags; + uint64_t iova; + int ret; + + if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) { + dev_err(dev->dev, "bad cursor size: %dx%d\n", width, height); + return -EINVAL; + } + + if (handle) { + cursor_bo = drm_gem_object_lookup(file_priv, handle); + if (!cursor_bo) + return -ENOENT; + } else { + cursor_bo = NULL; + } + + if (cursor_bo) { + ret = msm_gem_get_iova(cursor_bo, kms->aspace, &iova); + if (ret) + goto fail; + } else { + iova = 0; + } + + spin_lock_irqsave(&mdp4_crtc->cursor.lock, flags); + old_bo = mdp4_crtc->cursor.next_bo; + mdp4_crtc->cursor.next_bo = cursor_bo; + mdp4_crtc->cursor.next_iova = iova; + mdp4_crtc->cursor.width = width; + mdp4_crtc->cursor.height = height; + mdp4_crtc->cursor.stale = true; + spin_unlock_irqrestore(&mdp4_crtc->cursor.lock, flags); + + if (old_bo) { + /* drop our previous reference: */ + drm_flip_work_queue(&mdp4_crtc->unref_cursor_work, old_bo); + } + + request_pending(crtc, PENDING_CURSOR); + + return 0; + +fail: + drm_gem_object_put_unlocked(cursor_bo); + return ret; +} + +static int mdp4_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + unsigned long flags; + + spin_lock_irqsave(&mdp4_crtc->cursor.lock, flags); + mdp4_crtc->cursor.x = x; + mdp4_crtc->cursor.y = y; + spin_unlock_irqrestore(&mdp4_crtc->cursor.lock, flags); + + crtc_flush(crtc); + request_pending(crtc, PENDING_CURSOR); + + return 0; +} + +static const struct drm_crtc_funcs mdp4_crtc_funcs = { + .set_config = drm_atomic_helper_set_config, + .destroy = mdp4_crtc_destroy, + .page_flip = drm_atomic_helper_page_flip, + .cursor_set = mdp4_crtc_cursor_set, + .cursor_move = mdp4_crtc_cursor_move, + .reset = drm_atomic_helper_crtc_reset, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, +}; + +static const struct drm_crtc_helper_funcs mdp4_crtc_helper_funcs = { + .mode_set_nofb = mdp4_crtc_mode_set_nofb, + .atomic_check = mdp4_crtc_atomic_check, + .atomic_begin = mdp4_crtc_atomic_begin, + .atomic_flush = mdp4_crtc_atomic_flush, + .atomic_enable = mdp4_crtc_atomic_enable, + .atomic_disable = mdp4_crtc_atomic_disable, +}; + +static void mdp4_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus) +{ + struct mdp4_crtc *mdp4_crtc = container_of(irq, struct mdp4_crtc, vblank); + struct drm_crtc *crtc = &mdp4_crtc->base; + struct msm_drm_private *priv = crtc->dev->dev_private; + unsigned pending; + + mdp_irq_unregister(&get_kms(crtc)->base, &mdp4_crtc->vblank); + + pending = atomic_xchg(&mdp4_crtc->pending, 0); + + if (pending & PENDING_FLIP) { + complete_flip(crtc, NULL); + } + + if (pending & PENDING_CURSOR) { + update_cursor(crtc); + drm_flip_work_commit(&mdp4_crtc->unref_cursor_work, priv->wq); + } +} + +static void mdp4_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus) +{ + struct mdp4_crtc *mdp4_crtc = container_of(irq, struct mdp4_crtc, err); + struct drm_crtc *crtc = &mdp4_crtc->base; + DBG("%s: error: %08x", mdp4_crtc->name, irqstatus); + crtc_flush(crtc); +} + +static void mdp4_crtc_wait_for_flush_done(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + int ret; + + ret = drm_crtc_vblank_get(crtc); + if (ret) + return; + + ret = wait_event_timeout(dev->vblank[drm_crtc_index(crtc)].queue, + !(mdp4_read(mdp4_kms, REG_MDP4_OVERLAY_FLUSH) & + mdp4_crtc->flushed_mask), + msecs_to_jiffies(50)); + if (ret <= 0) + dev_warn(dev->dev, "vblank time out, crtc=%d\n", mdp4_crtc->id); + + mdp4_crtc->flushed_mask = 0; + + drm_crtc_vblank_put(crtc); +} + +uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + return mdp4_crtc->vblank.irqmask; +} + +/* set dma config, ie. the format the encoder wants. */ +void mdp4_crtc_set_config(struct drm_crtc *crtc, uint32_t config) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + + mdp4_write(mdp4_kms, REG_MDP4_DMA_CONFIG(mdp4_crtc->dma), config); +} + +/* set interface for routing crtc->encoder: */ +void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf, int mixer) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + uint32_t intf_sel; + + intf_sel = mdp4_read(mdp4_kms, REG_MDP4_DISP_INTF_SEL); + + switch (mdp4_crtc->dma) { + case DMA_P: + intf_sel &= ~MDP4_DISP_INTF_SEL_PRIM__MASK; + intf_sel |= MDP4_DISP_INTF_SEL_PRIM(intf); + break; + case DMA_S: + intf_sel &= ~MDP4_DISP_INTF_SEL_SEC__MASK; + intf_sel |= MDP4_DISP_INTF_SEL_SEC(intf); + break; + case DMA_E: + intf_sel &= ~MDP4_DISP_INTF_SEL_EXT__MASK; + intf_sel |= MDP4_DISP_INTF_SEL_EXT(intf); + break; + } + + if (intf == INTF_DSI_VIDEO) { + intf_sel &= ~MDP4_DISP_INTF_SEL_DSI_CMD; + intf_sel |= MDP4_DISP_INTF_SEL_DSI_VIDEO; + } else if (intf == INTF_DSI_CMD) { + intf_sel &= ~MDP4_DISP_INTF_SEL_DSI_VIDEO; + intf_sel |= MDP4_DISP_INTF_SEL_DSI_CMD; + } + + mdp4_crtc->mixer = mixer; + + blend_setup(crtc); + + DBG("%s: intf_sel=%08x", mdp4_crtc->name, intf_sel); + + mdp4_write(mdp4_kms, REG_MDP4_DISP_INTF_SEL, intf_sel); +} + +void mdp4_crtc_wait_for_commit_done(struct drm_crtc *crtc) +{ + /* wait_for_flush_done is the only case for now. + * Later we will have command mode CRTC to wait for + * other event. + */ + mdp4_crtc_wait_for_flush_done(crtc); +} + +static const char *dma_names[] = { + "DMA_P", "DMA_S", "DMA_E", +}; + +/* initialize crtc */ +struct drm_crtc *mdp4_crtc_init(struct drm_device *dev, + struct drm_plane *plane, int id, int ovlp_id, + enum mdp4_dma dma_id) +{ + struct drm_crtc *crtc = NULL; + struct mdp4_crtc *mdp4_crtc; + + mdp4_crtc = kzalloc(sizeof(*mdp4_crtc), GFP_KERNEL); + if (!mdp4_crtc) + return ERR_PTR(-ENOMEM); + + crtc = &mdp4_crtc->base; + + mdp4_crtc->id = id; + + mdp4_crtc->ovlp = ovlp_id; + mdp4_crtc->dma = dma_id; + + mdp4_crtc->vblank.irqmask = dma2irq(mdp4_crtc->dma); + mdp4_crtc->vblank.irq = mdp4_crtc_vblank_irq; + + mdp4_crtc->err.irqmask = dma2err(mdp4_crtc->dma); + mdp4_crtc->err.irq = mdp4_crtc_err_irq; + + snprintf(mdp4_crtc->name, sizeof(mdp4_crtc->name), "%s:%d", + dma_names[dma_id], ovlp_id); + + spin_lock_init(&mdp4_crtc->cursor.lock); + + drm_flip_work_init(&mdp4_crtc->unref_cursor_work, + "unref cursor", unref_cursor_worker); + + drm_crtc_init_with_planes(dev, crtc, plane, NULL, &mdp4_crtc_funcs, + NULL); + drm_crtc_helper_add(crtc, &mdp4_crtc_helper_funcs); + plane->crtc = crtc; + + return crtc; +} |