diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp4/mdp4_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp4/mdp4_crtc.c | 684 |
1 files changed, 684 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c new file mode 100644 index 000000000000..bda0fc40b207 --- /dev/null +++ b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c @@ -0,0 +1,684 @@ +/* + * 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 "mdp4_kms.h" + +#include <drm/drm_mode.h> +#include "drm_crtc.h" +#include "drm_crtc_helper.h" +#include "drm_flip_work.h" + +struct mdp4_crtc { + struct drm_crtc base; + char name[8]; + struct drm_plane *plane; + 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; + + /* 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; + struct work_struct pageflip_work; + + /* the fb that we currently hold a scanout ref to: */ + struct drm_framebuffer *fb; + + /* for unref'ing framebuffers after scanout completes: */ + struct drm_flip_work unref_fb_work; + + /* for unref'ing cursor bo's after scanout completes: */ + struct drm_flip_work unref_cursor_work; + + struct mdp4_irq vblank; + struct mdp4_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(priv->kms); +} + +static void update_fb(struct drm_crtc *crtc, bool async, + struct drm_framebuffer *new_fb) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct drm_framebuffer *old_fb = mdp4_crtc->fb; + + if (old_fb) + drm_flip_work_queue(&mdp4_crtc->unref_fb_work, old_fb); + + /* grab reference to incoming scanout fb: */ + drm_framebuffer_reference(new_fb); + mdp4_crtc->base.fb = new_fb; + mdp4_crtc->fb = new_fb; + + if (!async) { + /* enable vblank to pick up the old_fb */ + mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank); + } +} + +static void complete_flip(struct drm_crtc *crtc, bool canceled) +{ + 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; + if (canceled) + event->base.destroy(&event->base); + else + drm_send_vblank_event(dev, mdp4_crtc->id, event); + } + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +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); + uint32_t flush = 0; + + flush |= pipe2flush(mdp4_plane_pipe(mdp4_crtc->plane)); + flush |= ovlp2flush(mdp4_crtc->ovlp); + + DBG("%s: flush=%08x", mdp4_crtc->name, flush); + + mdp4_write(mdp4_kms, REG_MDP4_OVERLAY_FLUSH, flush); +} + +static void pageflip_worker(struct work_struct *work) +{ + struct mdp4_crtc *mdp4_crtc = + container_of(work, struct mdp4_crtc, pageflip_work); + struct drm_crtc *crtc = &mdp4_crtc->base; + + mdp4_plane_set_scanout(mdp4_crtc->plane, crtc->fb); + crtc_flush(crtc); + + /* enable vblank to complete flip: */ + mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank); +} + +static void unref_fb_worker(struct drm_flip_work *work, void *val) +{ + struct mdp4_crtc *mdp4_crtc = + container_of(work, struct mdp4_crtc, unref_fb_work); + struct drm_device *dev = mdp4_crtc->base.dev; + + mutex_lock(&dev->mode_config.mutex); + drm_framebuffer_unreference(val); + mutex_unlock(&dev->mode_config.mutex); +} + +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); + + msm_gem_put_iova(val, mdp4_kms->id); + drm_gem_object_unreference_unlocked(val); +} + +static void mdp4_crtc_destroy(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + + mdp4_crtc->plane->funcs->destroy(mdp4_crtc->plane); + + drm_crtc_cleanup(crtc); + drm_flip_work_cleanup(&mdp4_crtc->unref_fb_work); + drm_flip_work_cleanup(&mdp4_crtc->unref_cursor_work); + + kfree(mdp4_crtc); +} + +static void mdp4_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + bool enabled = (mode == DRM_MODE_DPMS_ON); + + DBG("%s: mode=%d", mdp4_crtc->name, mode); + + if (enabled != mdp4_crtc->enabled) { + if (enabled) { + mdp4_enable(mdp4_kms); + mdp4_irq_register(mdp4_kms, &mdp4_crtc->err); + } else { + mdp4_irq_unregister(mdp4_kms, &mdp4_crtc->err); + mdp4_disable(mdp4_kms); + } + mdp4_crtc->enabled = enabled; + } +} + +static bool mdp4_crtc_mode_fixup(struct drm_crtc *crtc, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +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); + int i, ovlp = mdp4_crtc->ovlp; + uint32_t mixer_cfg = 0; + + /* + * This probably would also need to be triggered by any attached + * plane when it changes.. for now since we are only using a single + * private plane, the configuration is hard-coded: + */ + + 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); + + for (i = 0; i < 4; i++) { + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_FG_ALPHA(ovlp, i), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_BG_ALPHA(ovlp, i), 0); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_OP(ovlp, i), + MDP4_OVLP_STAGE_OP_FG_ALPHA(FG_CONST) | + MDP4_OVLP_STAGE_OP_BG_ALPHA(BG_CONST)); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_CO3(ovlp, i), 0); + 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); + } + + /* TODO single register for all CRTCs, so this won't work properly + * when multiple CRTCs are active.. + */ + switch (mdp4_plane_pipe(mdp4_crtc->plane)) { + case VG1: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE0(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE0_MIXER1); + break; + case VG2: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE1(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE1_MIXER1); + break; + case RGB1: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE2(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE2_MIXER1); + break; + case RGB2: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE3(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE3_MIXER1); + break; + case RGB3: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE4(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE4_MIXER1); + break; + case VG3: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE5(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE5_MIXER1); + break; + case VG4: + mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE6(STAGE_BASE) | + COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE6_MIXER1); + break; + default: + WARN_ON("invalid pipe"); + break; + } + mdp4_write(mdp4_kms, REG_MDP4_LAYERMIXER_IN_CFG, mixer_cfg); +} + +static int mdp4_crtc_mode_set(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, + int x, int y, + struct drm_framebuffer *old_fb) +{ + 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 ret, ovlp = mdp4_crtc->ovlp; + + mode = 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), + crtc->fb->pitches[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), + crtc->fb->pitches[0]); + + mdp4_write(mdp4_kms, REG_MDP4_OVLP_CFG(ovlp), 1); + + update_fb(crtc, false, crtc->fb); + + ret = mdp4_plane_mode_set(mdp4_crtc->plane, crtc, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + x << 16, y << 16, + mode->hdisplay << 16, mode->vdisplay << 16); + if (ret) { + dev_err(crtc->dev->dev, "%s: failed to set mode on plane: %d\n", + mdp4_crtc->name, ret); + return ret; + } + + 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); + } + + return 0; +} + +static void mdp4_crtc_prepare(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + DBG("%s", mdp4_crtc->name); + /* make sure we hold a ref to mdp clks while setting up mode: */ + mdp4_enable(get_kms(crtc)); + mdp4_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); +} + +static void mdp4_crtc_commit(struct drm_crtc *crtc) +{ + mdp4_crtc_dpms(crtc, DRM_MODE_DPMS_ON); + crtc_flush(crtc); + /* drop the ref to mdp clk's that we got in prepare: */ + mdp4_disable(get_kms(crtc)); +} + +static int mdp4_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct drm_plane *plane = mdp4_crtc->plane; + struct drm_display_mode *mode = &crtc->mode; + + update_fb(crtc, false, crtc->fb); + + return mdp4_plane_mode_set(plane, crtc, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + x << 16, y << 16, + mode->hdisplay << 16, mode->vdisplay << 16); +} + +static void mdp4_crtc_load_lut(struct drm_crtc *crtc) +{ +} + +static int mdp4_crtc_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *new_fb, + struct drm_pending_vblank_event *event) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + struct drm_device *dev = crtc->dev; + struct drm_gem_object *obj; + + if (mdp4_crtc->event) { + dev_err(dev->dev, "already pending flip!\n"); + return -EBUSY; + } + + obj = msm_framebuffer_bo(new_fb, 0); + + mdp4_crtc->event = event; + update_fb(crtc, true, new_fb); + + return msm_gem_queue_inactive_work(obj, + &mdp4_crtc->pageflip_work); +} + +static int mdp4_crtc_set_property(struct drm_crtc *crtc, + struct drm_property *property, uint64_t val) +{ + // XXX + return -EINVAL; +} + +#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); + enum mdp4_dma dma = mdp4_crtc->dma; + unsigned long flags; + + spin_lock_irqsave(&mdp4_crtc->cursor.lock, flags); + if (mdp4_crtc->cursor.stale) { + struct mdp4_kms *mdp4_kms = get_kms(crtc); + struct drm_gem_object *next_bo = mdp4_crtc->cursor.next_bo; + struct drm_gem_object *prev_bo = mdp4_crtc->cursor.scanout_bo; + uint32_t iova = mdp4_crtc->cursor.next_iova; + + if (next_bo) { + /* take a obj ref + iova ref when we start scanning out: */ + drm_gem_object_reference(next_bo); + msm_gem_get_iova_locked(next_bo, mdp4_kms->id, &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), 0); + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BLEND_CONFIG(dma), + MDP4_DMA_CURSOR_BLEND_CONFIG_FORMAT(CURSOR_ARGB)); + } + + /* 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; + } + 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 drm_device *dev = crtc->dev; + struct drm_gem_object *cursor_bo, *old_bo; + unsigned long flags; + uint32_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(dev, file_priv, handle); + if (!cursor_bo) + return -ENOENT; + } else { + cursor_bo = NULL; + } + + if (cursor_bo) { + ret = msm_gem_get_iova(cursor_bo, mdp4_kms->id, &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: */ + msm_gem_put_iova(old_bo, mdp4_kms->id); + drm_gem_object_unreference_unlocked(old_bo); + } + + return 0; + +fail: + drm_gem_object_unreference_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); + struct mdp4_kms *mdp4_kms = get_kms(crtc); + enum mdp4_dma dma = mdp4_crtc->dma; + + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_POS(dma), + MDP4_DMA_CURSOR_POS_X(x) | + MDP4_DMA_CURSOR_POS_Y(y)); + + return 0; +} + +static const struct drm_crtc_funcs mdp4_crtc_funcs = { + .set_config = drm_crtc_helper_set_config, + .destroy = mdp4_crtc_destroy, + .page_flip = mdp4_crtc_page_flip, + .set_property = mdp4_crtc_set_property, + .cursor_set = mdp4_crtc_cursor_set, + .cursor_move = mdp4_crtc_cursor_move, +}; + +static const struct drm_crtc_helper_funcs mdp4_crtc_helper_funcs = { + .dpms = mdp4_crtc_dpms, + .mode_fixup = mdp4_crtc_mode_fixup, + .mode_set = mdp4_crtc_mode_set, + .prepare = mdp4_crtc_prepare, + .commit = mdp4_crtc_commit, + .mode_set_base = mdp4_crtc_mode_set_base, + .load_lut = mdp4_crtc_load_lut, +}; + +static void mdp4_crtc_vblank_irq(struct mdp4_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; + + update_cursor(crtc); + complete_flip(crtc, false); + mdp4_irq_unregister(get_kms(crtc), &mdp4_crtc->vblank); + + drm_flip_work_commit(&mdp4_crtc->unref_fb_work, priv->wq); + drm_flip_work_commit(&mdp4_crtc->unref_cursor_work, priv->wq); +} + +static void mdp4_crtc_err_irq(struct mdp4_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); +} + +uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + return mdp4_crtc->vblank.irqmask; +} + +void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc) +{ + complete_flip(crtc, true); +} + +/* 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) +{ + 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; + mdp4_crtc->mixer = 0; + } 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 = 0; + } else if (intf == INTF_LCDC_DTV){ + mdp4_crtc->mixer = 1; + } + + blend_setup(crtc); + + DBG("%s: intf_sel=%08x", mdp4_crtc->name, intf_sel); + + mdp4_write(mdp4_kms, REG_MDP4_DISP_INTF_SEL, intf_sel); +} + +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; + int ret; + + mdp4_crtc = kzalloc(sizeof(*mdp4_crtc), GFP_KERNEL); + if (!mdp4_crtc) { + ret = -ENOMEM; + goto fail; + } + + crtc = &mdp4_crtc->base; + + mdp4_crtc->plane = plane; + mdp4_crtc->plane->crtc = crtc; + + 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); + + ret = drm_flip_work_init(&mdp4_crtc->unref_fb_work, 16, + "unref fb", unref_fb_worker); + if (ret) + goto fail; + + ret = drm_flip_work_init(&mdp4_crtc->unref_cursor_work, 64, + "unref cursor", unref_cursor_worker); + + INIT_WORK(&mdp4_crtc->pageflip_work, pageflip_worker); + + drm_crtc_init(dev, crtc, &mdp4_crtc_funcs); + drm_crtc_helper_add(crtc, &mdp4_crtc_helper_funcs); + + mdp4_plane_install_properties(mdp4_crtc->plane, &crtc->base); + + return crtc; + +fail: + if (crtc) + mdp4_crtc_destroy(crtc); + + return ERR_PTR(ret); +} |