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path: root/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/msm/mdp4/mdp4_crtc.c')
-rw-r--r--drivers/gpu/drm/msm/mdp4/mdp4_crtc.c208
1 files changed, 138 insertions, 70 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
index de6bea2..019d530 100644
--- a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
+++ b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c
@@ -26,6 +26,7 @@ struct mdp4_crtc {
struct drm_crtc base;
char name[8];
struct drm_plane *plane;
+ struct drm_plane *planes[8];
int id;
int ovlp;
enum mdp4_dma dma;
@@ -50,7 +51,11 @@ struct mdp4_crtc {
/* if there is a pending flip, these will be non-null: */
struct drm_pending_vblank_event *event;
- struct work_struct pageflip_work;
+ struct msm_fence_cb pageflip_cb;
+
+#define PENDING_CURSOR 0x1
+#define PENDING_FLIP 0x2
+ atomic_t pending;
/* the fb that we currently hold a scanout ref to: */
struct drm_framebuffer *fb;
@@ -92,7 +97,8 @@ static void update_fb(struct drm_crtc *crtc, bool async,
}
}
-static void complete_flip(struct drm_crtc *crtc, bool canceled)
+/* 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;
@@ -102,11 +108,14 @@ static void complete_flip(struct drm_crtc *crtc, bool canceled)
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
+ /* 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);
}
@@ -115,9 +124,15 @@ 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;
+ uint32_t i, flush = 0;
- flush |= pipe2flush(mdp4_plane_pipe(mdp4_crtc->plane));
+ 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);
@@ -125,17 +140,29 @@ static void crtc_flush(struct drm_crtc *crtc)
mdp4_write(mdp4_kms, REG_MDP4_OVERLAY_FLUSH, flush);
}
-static void pageflip_worker(struct work_struct *work)
+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);
+ mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank);
+}
+
+static void pageflip_cb(struct msm_fence_cb *cb)
{
struct mdp4_crtc *mdp4_crtc =
- container_of(work, struct mdp4_crtc, pageflip_work);
+ container_of(cb, struct mdp4_crtc, pageflip_cb);
struct drm_crtc *crtc = &mdp4_crtc->base;
+ struct drm_framebuffer *fb = crtc->fb;
- mdp4_plane_set_scanout(mdp4_crtc->plane, crtc->fb);
+ if (!fb)
+ return;
+
+ mdp4_plane_set_scanout(mdp4_crtc->plane, fb);
crtc_flush(crtc);
/* enable vblank to complete flip: */
- mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank);
+ request_pending(crtc, PENDING_FLIP);
}
static void unref_fb_worker(struct drm_flip_work *work, void *val)
@@ -205,67 +232,69 @@ static void blend_setup(struct drm_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:
- */
+ static const enum mdp4_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 };
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);
+ /* TODO single register for all CRTCs, so this won't work properly
+ * when multiple CRTCs are active..
+ */
+ 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 mdp4_format *format =
+ to_mdp4_format(msm_framebuffer_format(plane->fb));
+ alpha[idx-1] = format->alpha_enable;
+ }
+ mixer_cfg |= mixercfg(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++) {
- 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);
+ 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);
}
- /* 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);
}
@@ -377,6 +406,7 @@ static int mdp4_crtc_page_flip(struct drm_crtc *crtc,
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");
@@ -385,11 +415,13 @@ static int mdp4_crtc_page_flip(struct drm_crtc *crtc,
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, true, new_fb);
- return msm_gem_queue_inactive_work(obj,
- &mdp4_crtc->pageflip_work);
+ return msm_gem_queue_inactive_cb(obj, &mdp4_crtc->pageflip_cb);
}
static int mdp4_crtc_set_property(struct drm_crtc *crtc,
@@ -498,6 +530,8 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc,
drm_gem_object_unreference_unlocked(old_bo);
}
+ request_pending(crtc, PENDING_CURSOR);
+
return 0;
fail:
@@ -542,13 +576,21 @@ 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;
+ unsigned pending;
- 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);
+ 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 mdp4_irq *irq, uint32_t irqstatus)
@@ -565,9 +607,10 @@ uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc)
return mdp4_crtc->vblank.irqmask;
}
-void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc)
+void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file)
{
- complete_flip(crtc, true);
+ DBG("cancel: %p", file);
+ complete_flip(crtc, file);
}
/* set dma config, ie. the format the encoder wants. */
@@ -622,6 +665,32 @@ void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf)
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 != mdp4_crtc->plane))
+ 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)
+{
+ set_attach(crtc, mdp4_plane_pipe(plane), NULL);
+}
+
static const char *dma_names[] = {
"DMA_P", "DMA_S", "DMA_E",
};
@@ -644,7 +713,6 @@ struct drm_crtc *mdp4_crtc_init(struct drm_device *dev,
crtc = &mdp4_crtc->base;
mdp4_crtc->plane = plane;
- mdp4_crtc->plane->crtc = crtc;
mdp4_crtc->ovlp = ovlp_id;
mdp4_crtc->dma = dma_id;
@@ -668,7 +736,7 @@ struct drm_crtc *mdp4_crtc_init(struct drm_device *dev,
ret = drm_flip_work_init(&mdp4_crtc->unref_cursor_work, 64,
"unref cursor", unref_cursor_worker);
- INIT_WORK(&mdp4_crtc->pageflip_work, pageflip_worker);
+ INIT_FENCE_CB(&mdp4_crtc->pageflip_cb, pageflip_cb);
drm_crtc_init(dev, crtc, &mdp4_crtc_funcs);
drm_crtc_helper_add(crtc, &mdp4_crtc_helper_funcs);