| /* |
| * 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 *planes[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; |
| struct msm_fence_cb pageflip_cb; |
| |
| #define PENDING_CURSOR 0x1 |
| #define PENDING_FLIP 0x2 |
| atomic_t pending; |
| |
| /* the fb that we logically (from PoV of KMS API) hold a ref |
| * to. Which we may not yet be scanning out (we may still |
| * be scanning out previous in case of page_flip while waiting |
| * for gpu rendering to complete: |
| */ |
| struct drm_framebuffer *fb; |
| |
| /* the fb that we currently hold a scanout ref to: */ |
| struct drm_framebuffer *scanout_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 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); |
| uint32_t i, flush = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(mdp4_crtc->planes); i++) { |
| struct drm_plane *plane = mdp4_crtc->planes[i]; |
| if (plane) { |
| 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_write(mdp4_kms, REG_MDP4_OVERLAY_FLUSH, flush); |
| } |
| |
| static void update_fb(struct drm_crtc *crtc, struct drm_framebuffer *new_fb) |
| { |
| struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); |
| struct drm_framebuffer *old_fb = mdp4_crtc->fb; |
| |
| /* grab reference to incoming scanout fb: */ |
| drm_framebuffer_reference(new_fb); |
| mdp4_crtc->base.primary->fb = new_fb; |
| mdp4_crtc->fb = new_fb; |
| |
| if (old_fb) |
| drm_flip_work_queue(&mdp4_crtc->unref_fb_work, old_fb); |
| } |
| |
| /* unlike update_fb(), take a ref to the new scanout fb *before* updating |
| * plane, then call this. Needed to ensure we don't unref the buffer that |
| * is actually still being scanned out. |
| * |
| * Note that this whole thing goes away with atomic.. since we can defer |
| * calling into driver until rendering is done. |
| */ |
| static void update_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb) |
| { |
| struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); |
| |
| /* 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). |
| */ |
| crtc_flush(crtc); |
| |
| if (mdp4_crtc->scanout_fb) |
| drm_flip_work_queue(&mdp4_crtc->unref_fb_work, |
| mdp4_crtc->scanout_fb); |
| |
| mdp4_crtc->scanout_fb = fb; |
| |
| /* enable vblank to complete flip: */ |
| request_pending(crtc, PENDING_FLIP); |
| } |
| |
| /* 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) { |
| /* if regular vblank case (!file) or if cancel-flip from |
| * preclose on file that requested flip, then send the |
| * event: |
| */ |
| if (!file || (event->base.file_priv == file)) { |
| mdp4_crtc->event = NULL; |
| drm_send_vblank_event(dev, mdp4_crtc->id, event); |
| } |
| } |
| spin_unlock_irqrestore(&dev->event_lock, flags); |
| } |
| |
| static void pageflip_cb(struct msm_fence_cb *cb) |
| { |
| struct mdp4_crtc *mdp4_crtc = |
| container_of(cb, struct mdp4_crtc, pageflip_cb); |
| struct drm_crtc *crtc = &mdp4_crtc->base; |
| struct drm_framebuffer *fb = crtc->primary->fb; |
| |
| if (!fb) |
| return; |
| |
| drm_framebuffer_reference(fb); |
| mdp4_plane_set_scanout(crtc->primary, fb); |
| update_scanout(crtc, fb); |
| } |
| |
| 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); |
| |
| 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); |
| mdp_irq_register(&mdp4_kms->base, &mdp4_crtc->err); |
| } else { |
| mdp_irq_unregister(&mdp4_kms->base, &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; |
| static const enum mdp_mixer_stage_id stages[] = { |
| STAGE_BASE, STAGE0, STAGE1, STAGE2, STAGE3, |
| }; |
| /* 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, |
| |
| }; |
| bool alpha[4]= { false, false, false, false }; |
| |
| /* Don't rely on value read back from hw, but instead use our |
| * own shadowed value. Possibly disable/reenable looses the |
| * previous value and goes back to power-on default? |
| */ |
| mixer_cfg = mdp4_kms->mixer_cfg; |
| |
| 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 < ARRAY_SIZE(mdp4_crtc->planes); i++) { |
| struct drm_plane *plane = mdp4_crtc->planes[i]; |
| if (plane) { |
| 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; |
| } |
| mixer_cfg = mixercfg(mixer_cfg, mdp4_crtc->mixer, |
| pipe_id, stages[idx]); |
| } |
| } |
| |
| /* this shouldn't happen.. and seems to cause underflow: */ |
| WARN_ON(!mixer_cfg); |
| |
| 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); |
| } |
| |
| mdp4_kms->mixer_cfg = mixer_cfg; |
| 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); |
| |
| /* grab extra ref for update_scanout() */ |
| drm_framebuffer_reference(crtc->primary->fb); |
| |
| ret = mdp4_plane_mode_set(crtc->primary, crtc, crtc->primary->fb, |
| 0, 0, mode->hdisplay, mode->vdisplay, |
| x << 16, y << 16, |
| mode->hdisplay << 16, mode->vdisplay << 16); |
| if (ret) { |
| drm_framebuffer_unreference(crtc->primary->fb); |
| dev_err(crtc->dev->dev, "%s: failed to set mode on plane: %d\n", |
| mdp4_crtc->name, ret); |
| return ret; |
| } |
| |
| 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); |
| } |
| |
| update_fb(crtc, crtc->primary->fb); |
| update_scanout(crtc, crtc->primary->fb); |
| |
| 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: */ |
| drm_crtc_vblank_get(crtc); |
| 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)); |
| drm_crtc_vblank_put(crtc); |
| } |
| |
| static int mdp4_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, |
| struct drm_framebuffer *old_fb) |
| { |
| struct drm_plane *plane = crtc->primary; |
| struct drm_display_mode *mode = &crtc->mode; |
| int ret; |
| |
| /* grab extra ref for update_scanout() */ |
| drm_framebuffer_reference(crtc->primary->fb); |
| |
| ret = mdp4_plane_mode_set(plane, crtc, crtc->primary->fb, |
| 0, 0, mode->hdisplay, mode->vdisplay, |
| x << 16, y << 16, |
| mode->hdisplay << 16, mode->vdisplay << 16); |
| if (ret) { |
| drm_framebuffer_unreference(crtc->primary->fb); |
| return ret; |
| } |
| |
| update_fb(crtc, crtc->primary->fb); |
| update_scanout(crtc, crtc->primary->fb); |
| |
| return 0; |
| } |
| |
| 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, |
| uint32_t page_flip_flags) |
| { |
| struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); |
| struct drm_device *dev = crtc->dev; |
| struct drm_gem_object *obj; |
| unsigned long flags; |
| |
| if (mdp4_crtc->event) { |
| dev_err(dev->dev, "already pending flip!\n"); |
| return -EBUSY; |
| } |
| |
| obj = msm_framebuffer_bo(new_fb, 0); |
| |
| spin_lock_irqsave(&dev->event_lock, flags); |
| mdp4_crtc->event = event; |
| spin_unlock_irqrestore(&dev->event_lock, flags); |
| |
| update_fb(crtc, new_fb); |
| |
| return msm_gem_queue_inactive_cb(obj, &mdp4_crtc->pageflip_cb); |
| } |
| |
| 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); |
| struct mdp4_kms *mdp4_kms = get_kms(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 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), |
| 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 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: */ |
| drm_flip_work_queue(&mdp4_crtc->unref_cursor_work, old_bo); |
| } |
| |
| request_pending(crtc, PENDING_CURSOR); |
| |
| 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); |
| 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_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 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); |
| drm_flip_work_commit(&mdp4_crtc->unref_fb_work, priv->wq); |
| } |
| |
| 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); |
| } |
| |
| 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, struct drm_file *file) |
| { |
| DBG("cancel: %p", file); |
| complete_flip(crtc, file); |
| } |
| |
| /* 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); |
| } |
| |
| static void set_attach(struct drm_crtc *crtc, enum mdp4_pipe pipe_id, |
| struct drm_plane *plane) |
| { |
| struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); |
| |
| BUG_ON(pipe_id >= ARRAY_SIZE(mdp4_crtc->planes)); |
| |
| if (mdp4_crtc->planes[pipe_id] == plane) |
| return; |
| |
| mdp4_crtc->planes[pipe_id] = plane; |
| blend_setup(crtc); |
| if (mdp4_crtc->enabled && (plane != crtc->primary)) |
| crtc_flush(crtc); |
| } |
| |
| void mdp4_crtc_attach(struct drm_crtc *crtc, struct drm_plane *plane) |
| { |
| set_attach(crtc, mdp4_plane_pipe(plane), plane); |
| } |
| |
| void mdp4_crtc_detach(struct drm_crtc *crtc, struct drm_plane *plane) |
| { |
| /* don't actually detatch our primary plane: */ |
| if (crtc->primary == plane) |
| return; |
| set_attach(crtc, mdp4_plane_pipe(plane), NULL); |
| } |
| |
| 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_fb_work, |
| "unref fb", unref_fb_worker); |
| drm_flip_work_init(&mdp4_crtc->unref_cursor_work, |
| "unref cursor", unref_cursor_worker); |
| |
| INIT_FENCE_CB(&mdp4_crtc->pageflip_cb, pageflip_cb); |
| |
| drm_crtc_init_with_planes(dev, crtc, plane, NULL, &mdp4_crtc_funcs); |
| drm_crtc_helper_add(crtc, &mdp4_crtc_helper_funcs); |
| |
| mdp4_plane_install_properties(plane, &crtc->base); |
| |
| return crtc; |
| } |