#include <linux/reservation.h>
#include <linux/dma-buf.h>
+static bool is_mmio_work(struct intel_flip_work *work)
+{
+ return work->mmio_work.func;
+}
+
/* Primary plane formats for gen <= 3 */
static const uint32_t i8xx_primary_formats[] = {
DRM_FORMAT_C8,
const struct intel_crtc_state *pipe_config);
static void chv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
+static void intel_begin_crtc_commit(struct drm_crtc *, struct drm_crtc_state *);
+static void intel_finish_crtc_commit(struct drm_crtc *, struct drm_crtc_state *);
static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc,
struct intel_crtc_state *crtc_state);
static void skylake_pfit_enable(struct intel_crtc *crtc);
static void intel_modeset_setup_hw_state(struct drm_device *dev);
static void intel_pre_disable_primary_noatomic(struct drm_crtc *crtc);
static int ilk_max_pixel_rate(struct drm_atomic_state *state);
-static void intel_modeset_verify_crtc(struct drm_crtc *crtc,
- struct drm_crtc_state *old_state,
- struct drm_crtc_state *new_state);
struct intel_limit {
struct {
return false;
}
+/* Update plane->state->fb to match plane->fb after driver-internal updates */
+static void
+update_state_fb(struct drm_plane *plane)
+{
+ if (plane->fb == plane->state->fb)
+ return;
+
+ if (plane->state->fb)
+ drm_framebuffer_unreference(plane->state->fb);
+ plane->state->fb = plane->fb;
+ if (plane->state->fb)
+ drm_framebuffer_reference(plane->state->fb);
+}
+
static void
intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
struct intel_initial_plane_config *plane_config)
return -ENODEV;
}
+static void intel_complete_page_flips(struct drm_i915_private *dev_priv)
+{
+ struct intel_crtc *crtc;
+
+ for_each_intel_crtc(dev_priv->dev, crtc)
+ intel_finish_page_flip_cs(dev_priv, crtc->pipe);
+}
+
static void intel_update_primary_planes(struct drm_device *dev)
{
struct drm_crtc *crtc;
void intel_finish_reset(struct drm_i915_private *dev_priv)
{
+ /*
+ * Flips in the rings will be nuked by the reset,
+ * so complete all pending flips so that user space
+ * will get its events and not get stuck.
+ */
+ intel_complete_page_flips(dev_priv);
+
/* no reset support for gen2 */
if (IS_GEN2(dev_priv))
return;
static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
{
- return !list_empty_careful(&to_intel_crtc(crtc)->flip_work);
+ struct drm_device *dev = crtc->dev;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ unsigned reset_counter;
+ bool pending;
+
+ reset_counter = i915_reset_counter(&to_i915(dev)->gpu_error);
+ if (intel_crtc->reset_counter != reset_counter)
+ return false;
+
+ spin_lock_irq(&dev->event_lock);
+ pending = to_intel_crtc(crtc)->flip_work != NULL;
+ spin_unlock_irq(&dev->event_lock);
+
+ return pending;
}
static void intel_update_pipe_config(struct intel_crtc *crtc,
if (atomic_read(&crtc->unpin_work_count) == 0)
continue;
- if (!list_empty_careful(&crtc->flip_work))
+ if (crtc->flip_work)
intel_wait_for_vblank(dev, crtc->pipe);
return true;
return false;
}
-static void page_flip_completed(struct intel_crtc *intel_crtc, struct intel_flip_work *work)
+static void page_flip_completed(struct intel_crtc *intel_crtc)
{
struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
- struct drm_plane_state *new_plane_state;
- struct drm_plane *primary = intel_crtc->base.primary;
+ struct intel_flip_work *work = intel_crtc->flip_work;
+
+ intel_crtc->flip_work = NULL;
if (work->event)
drm_crtc_send_vblank_event(&intel_crtc->base, work->event);
drm_crtc_vblank_put(&intel_crtc->base);
- new_plane_state = &work->old_plane_state[0]->base;
- if (work->num_planes >= 1 &&
- new_plane_state->plane == primary &&
- new_plane_state->fb)
- trace_i915_flip_complete(intel_crtc->plane,
- intel_fb_obj(new_plane_state->fb));
-
- if (work->can_async_unpin) {
- list_del_init(&work->head);
- wake_up_all(&dev_priv->pending_flip_queue);
- }
-
+ wake_up_all(&dev_priv->pending_flip_queue);
queue_work(dev_priv->wq, &work->unpin_work);
+
+ trace_i915_flip_complete(intel_crtc->plane,
+ work->pending_flip_obj);
}
static int intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
if (ret < 0)
return ret;
- WARN(ret == 0, "Stuck page flip\n");
+ if (ret == 0) {
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_flip_work *work;
+
+ spin_lock_irq(&dev->event_lock);
+ work = intel_crtc->flip_work;
+ if (work && !is_mmio_work(work)) {
+ WARN_ONCE(1, "Removing stuck page flip\n");
+ page_flip_completed(intel_crtc);
+ }
+ spin_unlock_irq(&dev->event_lock);
+ }
return 0;
}
}
}
+static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
+ struct drm_atomic_state *old_state = old_crtc_state->base.state;
+ struct intel_crtc_state *pipe_config =
+ to_intel_crtc_state(crtc->base.state);
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_plane *primary = crtc->base.primary;
+ struct drm_plane_state *old_pri_state =
+ drm_atomic_get_existing_plane_state(old_state, primary);
+
+ intel_frontbuffer_flip(dev, pipe_config->fb_bits);
+
+ crtc->wm.cxsr_allowed = true;
+
+ if (pipe_config->update_wm_post && pipe_config->base.active)
+ intel_update_watermarks(&crtc->base);
+
+ if (old_pri_state) {
+ struct intel_plane_state *primary_state =
+ to_intel_plane_state(primary->state);
+ struct intel_plane_state *old_primary_state =
+ to_intel_plane_state(old_pri_state);
+
+ intel_fbc_post_update(crtc);
+
+ if (primary_state->visible &&
+ (needs_modeset(&pipe_config->base) ||
+ !old_primary_state->visible))
+ intel_post_enable_primary(&crtc->base);
+ }
+}
+
static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
struct intel_plane_state *old_primary_state =
to_intel_plane_state(old_pri_state);
- intel_fbc_pre_update(crtc, pipe_config, primary_state);
+ intel_fbc_pre_update(crtc);
if (old_primary_state->visible &&
(modeset || !primary_state->visible))
struct drm_i915_private *dev_priv = crtc->dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum intel_display_power_domain domain;
- unsigned long domains, new_domains, old_domains, ms_domain = 0;
+ unsigned long domains, new_domains, old_domains;
old_domains = intel_crtc->enabled_power_domains;
intel_crtc->enabled_power_domains = new_domains =
get_crtc_power_domains(crtc, crtc_state);
- if (needs_modeset(&crtc_state->base))
- ms_domain = BIT(POWER_DOMAIN_MODESET);
-
- domains = (new_domains & ~old_domains) | ms_domain;
+ domains = new_domains & ~old_domains;
for_each_power_domain(domain, domains)
intel_display_power_get(dev_priv, domain);
- return (old_domains & ~new_domains) | ms_domain;
+ return old_domains & ~new_domains;
}
static void modeset_put_power_domains(struct drm_i915_private *dev_priv,
return;
if (to_intel_plane_state(crtc->primary->state)->visible) {
- WARN_ON(list_empty(&intel_crtc->flip_work));
+ WARN_ON(intel_crtc->flip_work);
intel_pre_disable_primary_noatomic(crtc);
DRM_ERROR("Suspending crtc's failed with %i\n", ret);
else
dev_priv->modeset_restore_state = state;
-
- /*
- * Make sure all unpin_work completes before returning.
- */
- flush_workqueue(dev_priv->wq);
-
return ret;
}
/* Cross check the actual hw state with our own modeset state tracking (and it's
* internal consistency). */
-static void intel_connector_verify_state(struct intel_connector *connector,
- struct drm_connector_state *conn_state)
+static void intel_connector_verify_state(struct intel_connector *connector)
{
- struct drm_crtc *crtc = conn_state->crtc;
+ struct drm_crtc *crtc = connector->base.state->crtc;
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
connector->base.base.id,
if (connector->get_hw_state(connector)) {
struct intel_encoder *encoder = connector->encoder;
+ struct drm_connector_state *conn_state = connector->base.state;
I915_STATE_WARN(!crtc,
"connector enabled without attached crtc\n");
} else {
I915_STATE_WARN(crtc && crtc->state->active,
"attached crtc is active, but connector isn't\n");
- I915_STATE_WARN(!crtc && conn_state->best_encoder,
+ I915_STATE_WARN(!crtc && connector->base.state->best_encoder,
"best encoder set without crtc!\n");
}
}
intel_runtime_pm_put(dev_priv);
}
-void intel_free_flip_work(struct intel_flip_work *work)
-{
- kfree(work->old_connector_state);
- kfree(work->new_connector_state);
- kfree(work);
-}
-
static void intel_crtc_destroy(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_flip_work *work;
spin_lock_irq(&dev->event_lock);
- while (!list_empty(&intel_crtc->flip_work)) {
- work = list_first_entry(&intel_crtc->flip_work,
- struct intel_flip_work, head);
- list_del_init(&work->head);
- spin_unlock_irq(&dev->event_lock);
+ work = intel_crtc->flip_work;
+ intel_crtc->flip_work = NULL;
+ spin_unlock_irq(&dev->event_lock);
+ if (work) {
cancel_work_sync(&work->mmio_work);
cancel_work_sync(&work->unpin_work);
- intel_free_flip_work(work);
-
- spin_lock_irq(&dev->event_lock);
+ kfree(work);
}
- spin_unlock_irq(&dev->event_lock);
drm_crtc_cleanup(crtc);
kfree(intel_crtc);
}
-static void intel_crtc_post_flip_update(struct intel_flip_work *work,
- struct drm_crtc *crtc)
-{
- struct intel_crtc_state *crtc_state = work->new_crtc_state;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
- if (crtc_state->disable_cxsr)
- intel_crtc->wm.cxsr_allowed = true;
-
- if (crtc_state->update_wm_post && crtc_state->base.active)
- intel_update_watermarks(crtc);
-
- if (work->num_planes > 0 &&
- work->old_plane_state[0]->base.plane == crtc->primary) {
- struct intel_plane_state *plane_state =
- work->new_plane_state[0];
-
- if (plane_state->visible &&
- (needs_modeset(&crtc_state->base) ||
- !work->old_plane_state[0]->visible))
- intel_post_enable_primary(crtc);
- }
-}
-
static void intel_unpin_work_fn(struct work_struct *__work)
{
struct intel_flip_work *work =
container_of(__work, struct intel_flip_work, unpin_work);
- struct drm_crtc *crtc = work->old_crtc_state->base.crtc;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- int i;
-
- if (work->fb_bits)
- intel_frontbuffer_flip_complete(dev, work->fb_bits);
-
- /*
- * Unless work->can_async_unpin is false, there's no way to ensure
- * that work->new_crtc_state contains valid memory during unpin
- * because intel_atomic_commit may free it before this runs.
- */
- if (!work->can_async_unpin) {
- intel_crtc_post_flip_update(work, crtc);
-
- if (dev_priv->display.optimize_watermarks)
- dev_priv->display.optimize_watermarks(work->new_crtc_state);
- }
-
- if (work->fb_bits & to_intel_plane(crtc->primary)->frontbuffer_bit)
- intel_fbc_post_update(intel_crtc);
-
- if (work->put_power_domains)
- modeset_put_power_domains(dev_priv, work->put_power_domains);
-
- /* Make sure mmio work is completely finished before freeing all state here. */
- flush_work(&work->mmio_work);
-
- if (!work->can_async_unpin &&
- (work->new_crtc_state->update_pipe ||
- needs_modeset(&work->new_crtc_state->base))) {
- /* This must be called before work is unpinned for serialization. */
- intel_modeset_verify_crtc(crtc, &work->old_crtc_state->base,
- &work->new_crtc_state->base);
-
- for (i = 0; i < work->num_new_connectors; i++) {
- struct drm_connector_state *conn_state =
- work->new_connector_state[i];
- struct drm_connector *con = conn_state->connector;
-
- WARN_ON(!con);
-
- intel_connector_verify_state(to_intel_connector(con),
- conn_state);
- }
- }
-
- for (i = 0; i < work->num_old_connectors; i++) {
- struct drm_connector_state *old_con_state =
- work->old_connector_state[i];
- struct drm_connector *con =
- old_con_state->connector;
+ struct intel_crtc *crtc = to_intel_crtc(work->crtc);
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_plane *primary = crtc->base.primary;
- con->funcs->atomic_destroy_state(con, old_con_state);
- }
+ if (is_mmio_work(work))
+ flush_work(&work->mmio_work);
- if (!work->can_async_unpin || !list_empty(&work->head)) {
- spin_lock_irq(&dev->event_lock);
- WARN(list_empty(&work->head) != work->can_async_unpin,
- "[CRTC:%i] Pin work %p async %i with %i planes, active %i -> %i ms %i\n",
- crtc->base.id, work, work->can_async_unpin, work->num_planes,
- work->old_crtc_state->base.active, work->new_crtc_state->base.active,
- needs_modeset(&work->new_crtc_state->base));
+ mutex_lock(&dev->struct_mutex);
+ intel_unpin_fb_obj(work->old_fb, primary->state->rotation);
+ drm_gem_object_unreference(&work->pending_flip_obj->base);
- if (!list_empty(&work->head))
- list_del(&work->head);
+ if (work->flip_queued_req)
+ i915_gem_request_assign(&work->flip_queued_req, NULL);
+ mutex_unlock(&dev->struct_mutex);
- wake_up_all(&dev_priv->pending_flip_queue);
- spin_unlock_irq(&dev->event_lock);
- }
+ intel_frontbuffer_flip_complete(dev, to_intel_plane(primary)->frontbuffer_bit);
+ intel_fbc_post_update(crtc);
+ drm_framebuffer_unreference(work->old_fb);
- /* New crtc_state freed? */
- if (work->free_new_crtc_state)
- intel_crtc_destroy_state(crtc, &work->new_crtc_state->base);
+ BUG_ON(atomic_read(&crtc->unpin_work_count) == 0);
+ atomic_dec(&crtc->unpin_work_count);
- intel_crtc_destroy_state(crtc, &work->old_crtc_state->base);
+ kfree(work);
+}
- for (i = 0; i < work->num_planes; i++) {
- struct intel_plane_state *old_plane_state =
- work->old_plane_state[i];
- struct drm_framebuffer *old_fb = old_plane_state->base.fb;
- struct drm_plane *plane = old_plane_state->base.plane;
- struct drm_i915_gem_request *req;
+/* Is 'a' after or equal to 'b'? */
+static bool g4x_flip_count_after_eq(u32 a, u32 b)
+{
+ return !((a - b) & 0x80000000);
+}
- req = old_plane_state->wait_req;
- old_plane_state->wait_req = NULL;
- if (req)
- i915_gem_request_unreference(req);
+static bool __pageflip_finished_cs(struct intel_crtc *crtc,
+ struct intel_flip_work *work)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ unsigned reset_counter;
- fence_put(old_plane_state->base.fence);
- old_plane_state->base.fence = NULL;
+ reset_counter = i915_reset_counter(&dev_priv->gpu_error);
+ if (crtc->reset_counter != reset_counter)
+ return true;
- if (old_fb &&
- (plane->type != DRM_PLANE_TYPE_CURSOR ||
- !INTEL_INFO(dev_priv)->cursor_needs_physical)) {
- mutex_lock(&dev->struct_mutex);
- intel_unpin_fb_obj(old_fb, old_plane_state->base.rotation);
- mutex_unlock(&dev->struct_mutex);
- }
+ /*
+ * The relevant registers doen't exist on pre-ctg.
+ * As the flip done interrupt doesn't trigger for mmio
+ * flips on gmch platforms, a flip count check isn't
+ * really needed there. But since ctg has the registers,
+ * include it in the check anyway.
+ */
+ if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev))
+ return true;
- intel_plane_destroy_state(plane, &old_plane_state->base);
- }
+ /*
+ * BDW signals flip done immediately if the plane
+ * is disabled, even if the plane enable is already
+ * armed to occur at the next vblank :(
+ */
- if (!WARN_ON(atomic_read(&intel_crtc->unpin_work_count) == 0))
- atomic_dec(&intel_crtc->unpin_work_count);
+ /*
+ * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
+ * used the same base address. In that case the mmio flip might
+ * have completed, but the CS hasn't even executed the flip yet.
+ *
+ * A flip count check isn't enough as the CS might have updated
+ * the base address just after start of vblank, but before we
+ * managed to process the interrupt. This means we'd complete the
+ * CS flip too soon.
+ *
+ * Combining both checks should get us a good enough result. It may
+ * still happen that the CS flip has been executed, but has not
+ * yet actually completed. But in case the base address is the same
+ * anyway, we don't really care.
+ */
+ return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) ==
+ crtc->flip_work->gtt_offset &&
+ g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_G4X(crtc->pipe)),
+ crtc->flip_work->flip_count);
+}
- intel_free_flip_work(work);
+static bool
+__pageflip_finished_mmio(struct intel_crtc *crtc,
+ struct intel_flip_work *work)
+{
+ /*
+ * MMIO work completes when vblank is different from
+ * flip_queued_vblank.
+ *
+ * Reset counter value doesn't matter, this is handled by
+ * i915_wait_request finishing early, so no need to handle
+ * reset here.
+ */
+ return intel_crtc_get_vblank_counter(crtc) != work->flip_queued_vblank;
}
smp_rmb();
+ if (is_mmio_work(work))
+ return __pageflip_finished_mmio(crtc, work);
+ else
+ return __pageflip_finished_cs(crtc, work);
+}
+
+void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_flip_work *work;
+ unsigned long flags;
+
+ /* Ignore early vblank irqs */
+ if (!crtc)
+ return;
+
/*
- * MMIO work completes when vblank is different from
- * flip_queued_vblank.
+ * This is called both by irq handlers and the reset code (to complete
+ * lost pageflips) so needs the full irqsave spinlocks.
*/
- return intel_crtc_get_vblank_counter(crtc) != work->flip_queued_vblank;
+ spin_lock_irqsave(&dev->event_lock, flags);
+ work = intel_crtc->flip_work;
+
+ if (work != NULL &&
+ !is_mmio_work(work) &&
+ pageflip_finished(intel_crtc, work))
+ page_flip_completed(intel_crtc);
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
}
void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe)
* lost pageflips) so needs the full irqsave spinlocks.
*/
spin_lock_irqsave(&dev->event_lock, flags);
- while (!list_empty(&intel_crtc->flip_work)) {
- work = list_first_entry(&intel_crtc->flip_work,
- struct intel_flip_work,
- head);
+ work = intel_crtc->flip_work;
- if (!pageflip_finished(intel_crtc, work) ||
- work_busy(&work->unpin_work))
- break;
+ if (work != NULL &&
+ is_mmio_work(work) &&
+ pageflip_finished(intel_crtc, work))
+ page_flip_completed(intel_crtc);
- page_flip_completed(intel_crtc, work);
- }
spin_unlock_irqrestore(&dev->event_lock, flags);
}
-static void intel_mmio_flip_work_func(struct work_struct *w)
+static inline void intel_mark_page_flip_active(struct intel_crtc *crtc,
+ struct intel_flip_work *work)
{
- struct intel_flip_work *work =
- container_of(w, struct intel_flip_work, mmio_work);
- struct drm_crtc *crtc = work->old_crtc_state->base.crtc;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_crtc_state *crtc_state = work->new_crtc_state;
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct drm_i915_gem_request *req;
- int i, ret;
+ work->flip_queued_vblank = intel_crtc_get_vblank_counter(crtc);
- if (!needs_modeset(&crtc_state->base) && crtc_state->update_pipe) {
- work->put_power_domains =
- modeset_get_crtc_power_domains(crtc, crtc_state);
- }
+ /* Ensure that the work item is consistent when activating it ... */
+ smp_mb__before_atomic();
+ atomic_set(&work->pending, 1);
+}
- for (i = 0; i < work->num_planes; i++) {
- struct intel_plane_state *old_plane_state = work->old_plane_state[i];
+static int intel_gen2_queue_flip(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_i915_gem_request *req,
+ uint32_t flags)
+{
+ struct intel_engine_cs *engine = req->engine;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ u32 flip_mask;
+ int ret;
- /* For framebuffer backed by dmabuf, wait for fence */
- if (old_plane_state->base.fence)
- WARN_ON(fence_wait(old_plane_state->base.fence, false) < 0);
+ ret = intel_ring_begin(req, 6);
+ if (ret)
+ return ret;
- req = old_plane_state->wait_req;
- if (!req)
- continue;
+ /* Can't queue multiple flips, so wait for the previous
+ * one to finish before executing the next.
+ */
+ if (intel_crtc->plane)
+ flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
+ else
+ flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
+ intel_ring_emit(engine, MI_WAIT_FOR_EVENT | flip_mask);
+ intel_ring_emit(engine, MI_NOOP);
+ intel_ring_emit(engine, MI_DISPLAY_FLIP |
+ MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+ intel_ring_emit(engine, fb->pitches[0]);
+ intel_ring_emit(engine, intel_crtc->flip_work->gtt_offset);
+ intel_ring_emit(engine, 0); /* aux display base address, unused */
- WARN_ON(__i915_wait_request(req, false, NULL,
- &dev_priv->rps.mmioflips));
- }
+ return 0;
+}
- ret = drm_crtc_vblank_get(crtc);
- I915_STATE_WARN(ret < 0, "enabling vblank failed with %i\n", ret);
+static int intel_gen3_queue_flip(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_i915_gem_request *req,
+ uint32_t flags)
+{
+ struct intel_engine_cs *engine = req->engine;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ u32 flip_mask;
+ int ret;
- if (work->num_planes &&
- work->old_plane_state[0]->base.plane == crtc->primary)
- intel_fbc_enable(intel_crtc, work->new_crtc_state, work->new_plane_state[0]);
+ ret = intel_ring_begin(req, 6);
+ if (ret)
+ return ret;
- intel_frontbuffer_flip_prepare(dev, work->fb_bits);
+ if (intel_crtc->plane)
+ flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
+ else
+ flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
+ intel_ring_emit(engine, MI_WAIT_FOR_EVENT | flip_mask);
+ intel_ring_emit(engine, MI_NOOP);
+ intel_ring_emit(engine, MI_DISPLAY_FLIP_I915 |
+ MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+ intel_ring_emit(engine, fb->pitches[0]);
+ intel_ring_emit(engine, intel_crtc->flip_work->gtt_offset);
+ intel_ring_emit(engine, MI_NOOP);
- intel_pipe_update_start(intel_crtc);
- if (!needs_modeset(&crtc_state->base)) {
- if (crtc_state->base.color_mgmt_changed || crtc_state->update_pipe) {
- intel_color_set_csc(&crtc_state->base);
- intel_color_load_luts(&crtc_state->base);
- }
+ return 0;
+}
- if (crtc_state->update_pipe)
- intel_update_pipe_config(intel_crtc, work->old_crtc_state);
- else if (INTEL_INFO(dev)->gen >= 9)
- skl_detach_scalers(intel_crtc);
- }
+static int intel_gen4_queue_flip(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_i915_gem_request *req,
+ uint32_t flags)
+{
+ struct intel_engine_cs *engine = req->engine;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ uint32_t pf, pipesrc;
+ int ret;
- for (i = 0; i < work->num_planes; i++) {
- struct intel_plane_state *new_plane_state = work->new_plane_state[i];
- struct intel_plane *plane = to_intel_plane(new_plane_state->base.plane);
+ ret = intel_ring_begin(req, 4);
+ if (ret)
+ return ret;
- if (new_plane_state->visible)
- plane->update_plane(&plane->base, crtc_state, new_plane_state);
- else
- plane->disable_plane(&plane->base, crtc);
- }
+ /* i965+ uses the linear or tiled offsets from the
+ * Display Registers (which do not change across a page-flip)
+ * so we need only reprogram the base address.
+ */
+ intel_ring_emit(engine, MI_DISPLAY_FLIP |
+ MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+ intel_ring_emit(engine, fb->pitches[0]);
+ intel_ring_emit(engine, intel_crtc->flip_work->gtt_offset |
+ obj->tiling_mode);
+
+ /* XXX Enabling the panel-fitter across page-flip is so far
+ * untested on non-native modes, so ignore it for now.
+ * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
+ */
+ pf = 0;
+ pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
+ intel_ring_emit(engine, pf | pipesrc);
- intel_pipe_update_end(intel_crtc, work);
+ return 0;
}
-/**
- * intel_wm_need_update - Check whether watermarks need updating
- * @plane: drm plane
- * @state: new plane state
- *
- * Check current plane state versus the new one to determine whether
- * watermarks need to be recalculated.
- *
- * Returns true or false.
- */
-static bool intel_wm_need_update(struct drm_plane *plane,
- struct drm_plane_state *state)
+static int intel_gen6_queue_flip(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_i915_gem_request *req,
+ uint32_t flags)
{
- struct intel_plane_state *new = to_intel_plane_state(state);
- struct intel_plane_state *cur = to_intel_plane_state(plane->state);
+ struct intel_engine_cs *engine = req->engine;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ uint32_t pf, pipesrc;
+ int ret;
- /* Update watermarks on tiling or size changes. */
- if (new->visible != cur->visible)
- return true;
+ ret = intel_ring_begin(req, 4);
+ if (ret)
+ return ret;
- if (!cur->base.fb || !new->base.fb)
- return false;
+ intel_ring_emit(engine, MI_DISPLAY_FLIP |
+ MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+ intel_ring_emit(engine, fb->pitches[0] | obj->tiling_mode);
+ intel_ring_emit(engine, intel_crtc->flip_work->gtt_offset);
- if (cur->base.fb->modifier[0] != new->base.fb->modifier[0] ||
- cur->base.rotation != new->base.rotation ||
- drm_rect_width(&new->src) != drm_rect_width(&cur->src) ||
- drm_rect_height(&new->src) != drm_rect_height(&cur->src) ||
- drm_rect_width(&new->dst) != drm_rect_width(&cur->dst) ||
- drm_rect_height(&new->dst) != drm_rect_height(&cur->dst))
- return true;
+ /* Contrary to the suggestions in the documentation,
+ * "Enable Panel Fitter" does not seem to be required when page
+ * flipping with a non-native mode, and worse causes a normal
+ * modeset to fail.
+ * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
+ */
+ pf = 0;
+ pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
+ intel_ring_emit(engine, pf | pipesrc);
- return false;
+ return 0;
}
-static bool needs_scaling(struct intel_plane_state *state)
+static int intel_gen7_queue_flip(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_i915_gem_request *req,
+ uint32_t flags)
{
- int src_w = drm_rect_width(&state->src) >> 16;
- int src_h = drm_rect_height(&state->src) >> 16;
- int dst_w = drm_rect_width(&state->dst);
- int dst_h = drm_rect_height(&state->dst);
+ struct intel_engine_cs *engine = req->engine;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ uint32_t plane_bit = 0;
+ int len, ret;
- return (src_w != dst_w || src_h != dst_h);
-}
+ switch (intel_crtc->plane) {
+ case PLANE_A:
+ plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
+ break;
+ case PLANE_B:
+ plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
+ break;
+ case PLANE_C:
+ plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
+ break;
+ default:
+ WARN_ONCE(1, "unknown plane in flip command\n");
+ return -ENODEV;
+ }
+
+ len = 4;
+ if (engine->id == RCS) {
+ len += 6;
+ /*
+ * On Gen 8, SRM is now taking an extra dword to accommodate
+ * 48bits addresses, and we need a NOOP for the batch size to
+ * stay even.
+ */
+ if (IS_GEN8(dev))
+ len += 2;
+ }
+
+ /*
+ * BSpec MI_DISPLAY_FLIP for IVB:
+ * "The full packet must be contained within the same cache line."
+ *
+ * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
+ * cacheline, if we ever start emitting more commands before
+ * the MI_DISPLAY_FLIP we may need to first emit everything else,
+ * then do the cacheline alignment, and finally emit the
+ * MI_DISPLAY_FLIP.
+ */
+ ret = intel_ring_cacheline_align(req);
+ if (ret)
+ return ret;
+
+ ret = intel_ring_begin(req, len);
+ if (ret)
+ return ret;
+
+ /* Unmask the flip-done completion message. Note that the bspec says that
+ * we should do this for both the BCS and RCS, and that we must not unmask
+ * more than one flip event at any time (or ensure that one flip message
+ * can be sent by waiting for flip-done prior to queueing new flips).
+ * Experimentation says that BCS works despite DERRMR masking all
+ * flip-done completion events and that unmasking all planes at once
+ * for the RCS also doesn't appear to drop events. Setting the DERRMR
+ * to zero does lead to lockups within MI_DISPLAY_FLIP.
+ */
+ if (engine->id == RCS) {
+ intel_ring_emit(engine, MI_LOAD_REGISTER_IMM(1));
+ intel_ring_emit_reg(engine, DERRMR);
+ intel_ring_emit(engine, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
+ DERRMR_PIPEB_PRI_FLIP_DONE |
+ DERRMR_PIPEC_PRI_FLIP_DONE));
+ if (IS_GEN8(dev))
+ intel_ring_emit(engine, MI_STORE_REGISTER_MEM_GEN8 |
+ MI_SRM_LRM_GLOBAL_GTT);
+ else
+ intel_ring_emit(engine, MI_STORE_REGISTER_MEM |
+ MI_SRM_LRM_GLOBAL_GTT);
+ intel_ring_emit_reg(engine, DERRMR);
+ intel_ring_emit(engine, engine->scratch.gtt_offset + 256);
+ if (IS_GEN8(dev)) {
+ intel_ring_emit(engine, 0);
+ intel_ring_emit(engine, MI_NOOP);
+ }
+ }
+
+ intel_ring_emit(engine, MI_DISPLAY_FLIP_I915 | plane_bit);
+ intel_ring_emit(engine, (fb->pitches[0] | obj->tiling_mode));
+ intel_ring_emit(engine, intel_crtc->flip_work->gtt_offset);
+ intel_ring_emit(engine, (MI_NOOP));
+
+ return 0;
+}
+
+static bool use_mmio_flip(struct intel_engine_cs *engine,
+ struct drm_i915_gem_object *obj)
+{
+ /*
+ * This is not being used for older platforms, because
+ * non-availability of flip done interrupt forces us to use
+ * CS flips. Older platforms derive flip done using some clever
+ * tricks involving the flip_pending status bits and vblank irqs.
+ * So using MMIO flips there would disrupt this mechanism.
+ */
+
+ if (engine == NULL)
+ return true;
+
+ if (INTEL_GEN(engine->i915) < 5)
+ return false;
+
+ if (i915.use_mmio_flip < 0)
+ return false;
+ else if (i915.use_mmio_flip > 0)
+ return true;
+ else if (i915.enable_execlists)
+ return true;
+ else if (obj->base.dma_buf &&
+ !reservation_object_test_signaled_rcu(obj->base.dma_buf->resv,
+ false))
+ return true;
+ else
+ return engine != i915_gem_request_get_engine(obj->last_write_req);
+}
+
+static void skl_do_mmio_flip(struct intel_crtc *intel_crtc,
+ unsigned int rotation,
+ struct intel_flip_work *work)
+{
+ struct drm_device *dev = intel_crtc->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_framebuffer *fb = intel_crtc->base.primary->fb;
+ const enum pipe pipe = intel_crtc->pipe;
+ u32 ctl, stride, tile_height;
+
+ ctl = I915_READ(PLANE_CTL(pipe, 0));
+ ctl &= ~PLANE_CTL_TILED_MASK;
+ switch (fb->modifier[0]) {
+ case DRM_FORMAT_MOD_NONE:
+ break;
+ case I915_FORMAT_MOD_X_TILED:
+ ctl |= PLANE_CTL_TILED_X;
+ break;
+ case I915_FORMAT_MOD_Y_TILED:
+ ctl |= PLANE_CTL_TILED_Y;
+ break;
+ case I915_FORMAT_MOD_Yf_TILED:
+ ctl |= PLANE_CTL_TILED_YF;
+ break;
+ default:
+ MISSING_CASE(fb->modifier[0]);
+ }
+
+ /*
+ * The stride is either expressed as a multiple of 64 bytes chunks for
+ * linear buffers or in number of tiles for tiled buffers.
+ */
+ if (intel_rotation_90_or_270(rotation)) {
+ /* stride = Surface height in tiles */
+ tile_height = intel_tile_height(dev_priv, fb->modifier[0], 0);
+ stride = DIV_ROUND_UP(fb->height, tile_height);
+ } else {
+ stride = fb->pitches[0] /
+ intel_fb_stride_alignment(dev_priv, fb->modifier[0],
+ fb->pixel_format);
+ }
+
+ /*
+ * Both PLANE_CTL and PLANE_STRIDE are not updated on vblank but on
+ * PLANE_SURF updates, the update is then guaranteed to be atomic.
+ */
+ I915_WRITE(PLANE_CTL(pipe, 0), ctl);
+ I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
+
+ I915_WRITE(PLANE_SURF(pipe, 0), work->gtt_offset);
+ POSTING_READ(PLANE_SURF(pipe, 0));
+}
+
+static void ilk_do_mmio_flip(struct intel_crtc *intel_crtc,
+ struct intel_flip_work *work)
+{
+ struct drm_device *dev = intel_crtc->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_framebuffer *intel_fb =
+ to_intel_framebuffer(intel_crtc->base.primary->fb);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
+ i915_reg_t reg = DSPCNTR(intel_crtc->plane);
+ u32 dspcntr;
+
+ dspcntr = I915_READ(reg);
+
+ if (obj->tiling_mode != I915_TILING_NONE)
+ dspcntr |= DISPPLANE_TILED;
+ else
+ dspcntr &= ~DISPPLANE_TILED;
+
+ I915_WRITE(reg, dspcntr);
+
+ I915_WRITE(DSPSURF(intel_crtc->plane), work->gtt_offset);
+ POSTING_READ(DSPSURF(intel_crtc->plane));
+}
+
+static void intel_mmio_flip_work_func(struct work_struct *w)
+{
+ struct intel_flip_work *work =
+ container_of(w, struct intel_flip_work, mmio_work);
+ struct intel_crtc *crtc = to_intel_crtc(work->crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_framebuffer *intel_fb =
+ to_intel_framebuffer(crtc->base.primary->fb);
+ struct drm_i915_gem_object *obj = intel_fb->obj;
+
+ if (work->flip_queued_req)
+ WARN_ON(__i915_wait_request(work->flip_queued_req,
+ false, NULL,
+ &dev_priv->rps.mmioflips));
+
+ /* For framebuffer backed by dmabuf, wait for fence */
+ if (obj->base.dma_buf)
+ WARN_ON(reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv,
+ false, false,
+ MAX_SCHEDULE_TIMEOUT) < 0);
+
+ intel_pipe_update_start(crtc);
+
+ if (INTEL_GEN(dev_priv) >= 9)
+ skl_do_mmio_flip(crtc, work->rotation, work);
+ else
+ /* use_mmio_flip() retricts MMIO flips to ilk+ */
+ ilk_do_mmio_flip(crtc, work);
+
+ intel_pipe_update_end(crtc, work);
+}
+
+static int intel_default_queue_flip(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_i915_gem_request *req,
+ uint32_t flags)
+{
+ return -ENODEV;
+}
+
+static bool __pageflip_stall_check_cs(struct drm_i915_private *dev_priv,
+ struct intel_crtc *intel_crtc,
+ struct intel_flip_work *work)
+{
+ u32 addr, vblank;
+
+ if (!atomic_read(&work->pending))
+ return false;
+
+ smp_rmb();
+
+ vblank = intel_crtc_get_vblank_counter(intel_crtc);
+ if (work->flip_ready_vblank == 0) {
+ if (work->flip_queued_req &&
+ !i915_gem_request_completed(work->flip_queued_req, true))
+ return false;
+
+ work->flip_ready_vblank = vblank;
+ }
+
+ if (vblank - work->flip_ready_vblank < 3)
+ return false;
+
+ /* Potential stall - if we see that the flip has happened,
+ * assume a missed interrupt. */
+ if (INTEL_GEN(dev_priv) >= 4)
+ addr = I915_HI_DISPBASE(I915_READ(DSPSURF(intel_crtc->plane)));
+ else
+ addr = I915_READ(DSPADDR(intel_crtc->plane));
+
+ /* There is a potential issue here with a false positive after a flip
+ * to the same address. We could address this by checking for a
+ * non-incrementing frame counter.
+ */
+ return addr == work->gtt_offset;
+}
+
+void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_flip_work *work;
+
+ WARN_ON(!in_interrupt());
+
+ if (crtc == NULL)
+ return;
+
+ spin_lock(&dev->event_lock);
+ work = intel_crtc->flip_work;
+
+ if (work != NULL && !is_mmio_work(work) &&
+ __pageflip_stall_check_cs(dev_priv, intel_crtc, work)) {
+ WARN_ONCE(1,
+ "Kicking stuck page flip: queued at %d, now %d\n",
+ work->flip_queued_vblank, intel_crtc_get_vblank_counter(intel_crtc));
+ page_flip_completed(intel_crtc);
+ work = NULL;
+ }
+
+ if (work != NULL && !is_mmio_work(work) &&
+ intel_crtc_get_vblank_counter(intel_crtc) - work->flip_queued_vblank > 1)
+ intel_queue_rps_boost_for_request(work->flip_queued_req);
+ spin_unlock(&dev->event_lock);
+}
+
+static int intel_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t page_flip_flags)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_framebuffer *old_fb = crtc->primary->fb;
+ struct drm_i915_gem_object *obj = intel_fb_obj(fb);
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct drm_plane *primary = crtc->primary;
+ enum pipe pipe = intel_crtc->pipe;
+ struct intel_flip_work *work;
+ struct intel_engine_cs *engine;
+ bool mmio_flip;
+ struct drm_i915_gem_request *request = NULL;
+ int ret;
+
+ /*
+ * drm_mode_page_flip_ioctl() should already catch this, but double
+ * check to be safe. In the future we may enable pageflipping from
+ * a disabled primary plane.
+ */
+ if (WARN_ON(intel_fb_obj(old_fb) == NULL))
+ return -EBUSY;
+
+ /* Can't change pixel format via MI display flips. */
+ if (fb->pixel_format != crtc->primary->fb->pixel_format)
+ return -EINVAL;
+
+ /*
+ * TILEOFF/LINOFF registers can't be changed via MI display flips.
+ * Note that pitch changes could also affect these register.
+ */
+ if (INTEL_INFO(dev)->gen > 3 &&
+ (fb->offsets[0] != crtc->primary->fb->offsets[0] ||
+ fb->pitches[0] != crtc->primary->fb->pitches[0]))
+ return -EINVAL;
+
+ if (i915_terminally_wedged(&dev_priv->gpu_error))
+ goto out_hang;
+
+ work = kzalloc(sizeof(*work), GFP_KERNEL);
+ if (work == NULL)
+ return -ENOMEM;
+
+ work->event = event;
+ work->crtc = crtc;
+ work->old_fb = old_fb;
+ INIT_WORK(&work->unpin_work, intel_unpin_work_fn);
+
+ ret = drm_crtc_vblank_get(crtc);
+ if (ret)
+ goto free_work;
+
+ /* We borrow the event spin lock for protecting flip_work */
+ spin_lock_irq(&dev->event_lock);
+ if (intel_crtc->flip_work) {
+ /* Before declaring the flip queue wedged, check if
+ * the hardware completed the operation behind our backs.
+ */
+ if (pageflip_finished(intel_crtc, intel_crtc->flip_work)) {
+ DRM_DEBUG_DRIVER("flip queue: previous flip completed, continuing\n");
+ page_flip_completed(intel_crtc);
+ } else {
+ DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
+ spin_unlock_irq(&dev->event_lock);
+
+ drm_crtc_vblank_put(crtc);
+ kfree(work);
+ return -EBUSY;
+ }
+ }
+ intel_crtc->flip_work = work;
+ spin_unlock_irq(&dev->event_lock);
+
+ if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
+ flush_workqueue(dev_priv->wq);
+
+ /* Reference the objects for the scheduled work. */
+ drm_framebuffer_reference(work->old_fb);
+ drm_gem_object_reference(&obj->base);
+
+ crtc->primary->fb = fb;
+ update_state_fb(crtc->primary);
+ intel_fbc_pre_update(intel_crtc);
+
+ work->pending_flip_obj = obj;
+
+ ret = i915_mutex_lock_interruptible(dev);
+ if (ret)
+ goto cleanup;
+
+ intel_crtc->reset_counter = i915_reset_counter(&dev_priv->gpu_error);
+ if (__i915_reset_in_progress_or_wedged(intel_crtc->reset_counter)) {
+ ret = -EIO;
+ goto cleanup;
+ }
+
+ atomic_inc(&intel_crtc->unpin_work_count);
+
+ if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev))
+ work->flip_count = I915_READ(PIPE_FLIPCOUNT_G4X(pipe)) + 1;
+
+ if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
+ engine = &dev_priv->engine[BCS];
+ if (obj->tiling_mode != intel_fb_obj(work->old_fb)->tiling_mode)
+ /* vlv: DISPLAY_FLIP fails to change tiling */
+ engine = NULL;
+ } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
+ engine = &dev_priv->engine[BCS];
+ } else if (INTEL_INFO(dev)->gen >= 7) {
+ engine = i915_gem_request_get_engine(obj->last_write_req);
+ if (engine == NULL || engine->id != RCS)
+ engine = &dev_priv->engine[BCS];
+ } else {
+ engine = &dev_priv->engine[RCS];
+ }
+
+ mmio_flip = use_mmio_flip(engine, obj);
+
+ /* When using CS flips, we want to emit semaphores between rings.
+ * However, when using mmio flips we will create a task to do the
+ * synchronisation, so all we want here is to pin the framebuffer
+ * into the display plane and skip any waits.
+ */
+ if (!mmio_flip) {
+ ret = i915_gem_object_sync(obj, engine, &request);
+ if (!ret && !request) {
+ request = i915_gem_request_alloc(engine, NULL);
+ ret = PTR_ERR_OR_ZERO(request);
+ }
+
+ if (ret)
+ goto cleanup_pending;
+ }
+
+ ret = intel_pin_and_fence_fb_obj(fb, primary->state->rotation);
+ if (ret)
+ goto cleanup_pending;
+
+ work->gtt_offset = intel_plane_obj_offset(to_intel_plane(primary),
+ obj, 0);
+ work->gtt_offset += intel_crtc->dspaddr_offset;
+ work->rotation = crtc->primary->state->rotation;
+
+ if (mmio_flip) {
+ INIT_WORK(&work->mmio_work, intel_mmio_flip_work_func);
+
+ i915_gem_request_assign(&work->flip_queued_req,
+ obj->last_write_req);
+
+ schedule_work(&work->mmio_work);
+ } else {
+ i915_gem_request_assign(&work->flip_queued_req, request);
+ ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, request,
+ page_flip_flags);
+ if (ret)
+ goto cleanup_unpin;
+
+ intel_mark_page_flip_active(intel_crtc, work);
+
+ i915_add_request_no_flush(request);
+ }
+
+ i915_gem_track_fb(intel_fb_obj(old_fb), obj,
+ to_intel_plane(primary)->frontbuffer_bit);
+ mutex_unlock(&dev->struct_mutex);
+
+ intel_frontbuffer_flip_prepare(dev,
+ to_intel_plane(primary)->frontbuffer_bit);
+
+ trace_i915_flip_request(intel_crtc->plane, obj);
+
+ return 0;
+
+cleanup_unpin:
+ intel_unpin_fb_obj(fb, crtc->primary->state->rotation);
+cleanup_pending:
+ if (!IS_ERR_OR_NULL(request))
+ i915_add_request_no_flush(request);
+ atomic_dec(&intel_crtc->unpin_work_count);
+ mutex_unlock(&dev->struct_mutex);
+cleanup:
+ crtc->primary->fb = old_fb;
+ update_state_fb(crtc->primary);
+
+ drm_gem_object_unreference_unlocked(&obj->base);
+ drm_framebuffer_unreference(work->old_fb);
+
+ spin_lock_irq(&dev->event_lock);
+ intel_crtc->flip_work = NULL;
+ spin_unlock_irq(&dev->event_lock);
+
+ drm_crtc_vblank_put(crtc);
+free_work:
+ kfree(work);
+
+ if (ret == -EIO) {
+ struct drm_atomic_state *state;
+ struct drm_plane_state *plane_state;
+
+out_hang:
+ state = drm_atomic_state_alloc(dev);
+ if (!state)
+ return -ENOMEM;
+ state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc);
+
+retry:
+ plane_state = drm_atomic_get_plane_state(state, primary);
+ ret = PTR_ERR_OR_ZERO(plane_state);
+ if (!ret) {
+ drm_atomic_set_fb_for_plane(plane_state, fb);
+
+ ret = drm_atomic_set_crtc_for_plane(plane_state, crtc);
+ if (!ret)
+ ret = drm_atomic_commit(state);
+ }
+
+ if (ret == -EDEADLK) {
+ drm_modeset_backoff(state->acquire_ctx);
+ drm_atomic_state_clear(state);
+ goto retry;
+ }
+
+ if (ret)
+ drm_atomic_state_free(state);
+
+ if (ret == 0 && event) {
+ spin_lock_irq(&dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irq(&dev->event_lock);
+ }
+ }
+ return ret;
+}
+
+
+/**
+ * intel_wm_need_update - Check whether watermarks need updating
+ * @plane: drm plane
+ * @state: new plane state
+ *
+ * Check current plane state versus the new one to determine whether
+ * watermarks need to be recalculated.
+ *
+ * Returns true or false.
+ */
+static bool intel_wm_need_update(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct intel_plane_state *new = to_intel_plane_state(state);
+ struct intel_plane_state *cur = to_intel_plane_state(plane->state);
+
+ /* Update watermarks on tiling or size changes. */
+ if (new->visible != cur->visible)
+ return true;
+
+ if (!cur->base.fb || !new->base.fb)
+ return false;
+
+ if (cur->base.fb->modifier[0] != new->base.fb->modifier[0] ||
+ cur->base.rotation != new->base.rotation ||
+ drm_rect_width(&new->src) != drm_rect_width(&cur->src) ||
+ drm_rect_height(&new->src) != drm_rect_height(&cur->src) ||
+ drm_rect_width(&new->dst) != drm_rect_width(&cur->dst) ||
+ drm_rect_height(&new->dst) != drm_rect_height(&cur->dst))
+ return true;
+
+ return false;
+}
+
+static bool needs_scaling(struct intel_plane_state *state)
+{
+ int src_w = drm_rect_width(&state->src) >> 16;
+ int src_h = drm_rect_height(&state->src) >> 16;
+ int dst_w = drm_rect_width(&state->dst);
+ int dst_h = drm_rect_height(&state->dst);
+
+ return (src_w != dst_w || src_h != dst_h);
+}
int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
static const struct drm_crtc_helper_funcs intel_helper_funcs = {
.mode_set_base_atomic = intel_pipe_set_base_atomic,
+ .atomic_begin = intel_begin_crtc_commit,
+ .atomic_flush = intel_finish_crtc_commit,
.atomic_check = intel_crtc_atomic_check,
};
if (state->crtc != crtc)
continue;
- intel_connector_verify_state(to_intel_connector(connector),
- connector->state);
+ intel_connector_verify_state(to_intel_connector(connector));
I915_STATE_WARN(state->best_encoder != encoder,
"connector's atomic encoder doesn't match legacy encoder\n");
struct drm_crtc_state *old_state,
struct drm_crtc_state *new_state)
{
+ if (!needs_modeset(new_state) &&
+ !to_intel_crtc_state(new_state)->update_pipe)
+ return;
+
verify_wm_state(crtc, new_state);
+ verify_connector_state(crtc->dev, crtc);
verify_crtc_state(crtc, old_state, new_state);
verify_shared_dpll_state(crtc->dev, crtc, old_state, new_state);
}
return calc_watermark_data(state);
}
-static bool needs_work(struct drm_crtc_state *crtc_state)
-{
- /* hw state checker needs to run */
- if (needs_modeset(crtc_state))
- return true;
-
- /* unpin old fb's, possibly vblank update */
- if (crtc_state->planes_changed)
- return true;
-
- /* pipe parameters need to be updated, and hw state checker */
- if (to_intel_crtc_state(crtc_state)->update_pipe)
- return true;
-
- /* vblank event requested? */
- if (crtc_state->event)
- return true;
-
- return false;
-}
-
static int intel_atomic_prepare_commit(struct drm_device *dev,
struct drm_atomic_state *state,
bool nonblock)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
struct drm_plane_state *plane_state;
struct drm_crtc_state *crtc_state;
struct drm_plane *plane;
struct drm_crtc *crtc;
int i, ret;
- for_each_crtc_in_state(state, crtc, crtc_state, i) {
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_flip_work *work;
-
- if (!state->legacy_cursor_update) {
- ret = intel_crtc_wait_for_pending_flips(crtc);
- if (ret)
- return ret;
-
- if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
- flush_workqueue(dev_priv->wq);
- }
+ if (nonblock) {
+ DRM_DEBUG_KMS("i915 does not yet support nonblocking commit\n");
+ return -EINVAL;
+ }
- /* test if we need to update something */
- if (!needs_work(crtc_state))
+ for_each_crtc_in_state(state, crtc, crtc_state, i) {
+ if (state->legacy_cursor_update)
continue;
- intel_state->work[i] = work =
- kzalloc(sizeof(**intel_state->work), GFP_KERNEL);
-
- if (!work)
- return -ENOMEM;
-
- if (needs_modeset(crtc_state) ||
- to_intel_crtc_state(crtc_state)->update_pipe) {
- work->num_old_connectors = hweight32(crtc->state->connector_mask);
-
- work->old_connector_state = kcalloc(work->num_old_connectors,
- sizeof(*work->old_connector_state),
- GFP_KERNEL);
-
- work->num_new_connectors = hweight32(crtc_state->connector_mask);
- work->new_connector_state = kcalloc(work->num_new_connectors,
- sizeof(*work->new_connector_state),
- GFP_KERNEL);
-
- if (!work->old_connector_state || !work->new_connector_state)
- return -ENOMEM;
- }
- }
+ ret = intel_crtc_wait_for_pending_flips(crtc);
+ if (ret)
+ return ret;
- if (intel_state->modeset && nonblock) {
- DRM_DEBUG_ATOMIC("Nonblock modesets are not yet supported!\n");
- return -EINVAL;
+ if (atomic_read(&to_intel_crtc(crtc)->unpin_work_count) >= 2)
+ flush_workqueue(dev_priv->wq);
}
ret = mutex_lock_interruptible(&dev->struct_mutex);
struct intel_plane_state *intel_plane_state =
to_intel_plane_state(plane_state);
- if (plane_state->fence) {
- long lret = fence_wait(plane_state->fence, true);
-
- if (lret < 0) {
- ret = lret;
- break;
- }
- }
-
if (!intel_plane_state->wait_req)
continue;
return dev->driver->get_vblank_counter(dev, crtc->pipe);
}
-static void intel_prepare_work(struct drm_crtc *crtc,
- struct intel_flip_work *work,
- struct drm_atomic_state *state,
- struct drm_crtc_state *old_crtc_state)
+static void intel_atomic_wait_for_vblanks(struct drm_device *dev,
+ struct drm_i915_private *dev_priv,
+ unsigned crtc_mask)
{
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct drm_plane_state *old_plane_state;
- struct drm_plane *plane;
- int i, j = 0;
+ unsigned last_vblank_count[I915_MAX_PIPES];
+ enum pipe pipe;
+ int ret;
- INIT_WORK(&work->unpin_work, intel_unpin_work_fn);
- INIT_WORK(&work->mmio_work, intel_mmio_flip_work_func);
- atomic_inc(&intel_crtc->unpin_work_count);
+ if (!crtc_mask)
+ return;
- for_each_plane_in_state(state, plane, old_plane_state, i) {
- struct intel_plane_state *old_state = to_intel_plane_state(old_plane_state);
- struct intel_plane_state *new_state = to_intel_plane_state(plane->state);
+ for_each_pipe(dev_priv, pipe) {
+ struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
- if (old_state->base.crtc != crtc &&
- new_state->base.crtc != crtc)
+ if (!((1 << pipe) & crtc_mask))
continue;
- if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
- plane->fb = new_state->base.fb;
- crtc->x = new_state->base.src_x >> 16;
- crtc->y = new_state->base.src_y >> 16;
+ ret = drm_crtc_vblank_get(crtc);
+ if (WARN_ON(ret != 0)) {
+ crtc_mask &= ~(1 << pipe);
+ continue;
}
- old_state->wait_req = new_state->wait_req;
- new_state->wait_req = NULL;
-
- old_state->base.fence = new_state->base.fence;
- new_state->base.fence = NULL;
-
- /* remove plane state from the atomic state and move it to work */
- old_plane_state->state = NULL;
- state->planes[i] = NULL;
- state->plane_states[i] = NULL;
-
- work->old_plane_state[j] = old_state;
- work->new_plane_state[j++] = new_state;
+ last_vblank_count[pipe] = drm_crtc_vblank_count(crtc);
}
- old_crtc_state->state = NULL;
- state->crtcs[drm_crtc_index(crtc)] = NULL;
- state->crtc_states[drm_crtc_index(crtc)] = NULL;
-
- work->old_crtc_state = to_intel_crtc_state(old_crtc_state);
- work->new_crtc_state = to_intel_crtc_state(crtc->state);
- work->num_planes = j;
-
- work->event = crtc->state->event;
- crtc->state->event = NULL;
-
- if (needs_modeset(crtc->state) || work->new_crtc_state->update_pipe) {
- struct drm_connector *conn;
- struct drm_connector_state *old_conn_state;
- int k = 0;
-
- j = 0;
-
- /*
- * intel_unpin_work_fn cannot depend on the connector list
- * because it may be freed from underneath it, so add
- * them all to the work struct while we're holding locks.
- */
- for_each_connector_in_state(state, conn, old_conn_state, i) {
- if (old_conn_state->crtc == crtc) {
- work->old_connector_state[j++] = old_conn_state;
-
- state->connectors[i] = NULL;
- state->connector_states[i] = NULL;
- }
- }
-
- /* If another crtc has stolen the connector from state,
- * then for_each_connector_in_state is no longer reliable,
- * so use drm_for_each_connector here.
- */
- drm_for_each_connector(conn, state->dev)
- if (conn->state->crtc == crtc)
- work->new_connector_state[k++] = conn->state;
-
- WARN(j != work->num_old_connectors, "j = %i, expected %i\n", j, work->num_old_connectors);
- WARN(k != work->num_new_connectors, "k = %i, expected %i\n", k, work->num_new_connectors);
- } else if (!work->new_crtc_state->update_wm_post)
- work->can_async_unpin = true;
-
- work->fb_bits = work->new_crtc_state->fb_bits;
-}
-
-static void intel_schedule_unpin(struct drm_crtc *crtc,
- struct intel_atomic_state *state,
- struct intel_flip_work *work)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- to_intel_crtc(crtc)->config = work->new_crtc_state;
-
- queue_work(dev_priv->wq, &work->unpin_work);
-}
+ for_each_pipe(dev_priv, pipe) {
+ struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+ long lret;
-static void intel_schedule_flip(struct drm_crtc *crtc,
- struct intel_atomic_state *state,
- struct intel_flip_work *work,
- bool nonblock)
-{
- struct intel_crtc_state *crtc_state = work->new_crtc_state;
+ if (!((1 << pipe) & crtc_mask))
+ continue;
- if (crtc_state->base.planes_changed ||
- needs_modeset(&crtc_state->base) ||
- crtc_state->update_pipe) {
- if (nonblock)
- schedule_work(&work->mmio_work);
- else
- intel_mmio_flip_work_func(&work->mmio_work);
- } else {
- int ret;
+ lret = wait_event_timeout(dev->vblank[pipe].queue,
+ last_vblank_count[pipe] !=
+ drm_crtc_vblank_count(crtc),
+ msecs_to_jiffies(50));
- ret = drm_crtc_vblank_get(crtc);
- I915_STATE_WARN(ret < 0, "enabling vblank failed with %i\n", ret);
+ WARN(!lret, "pipe %c vblank wait timed out\n", pipe_name(pipe));
- work->flip_queued_vblank = intel_crtc_get_vblank_counter(to_intel_crtc(crtc));
- smp_mb__before_atomic();
- atomic_set(&work->pending, 1);
+ drm_crtc_vblank_put(crtc);
}
}
-static void intel_schedule_update(struct drm_crtc *crtc,
- struct intel_atomic_state *state,
- struct intel_flip_work *work,
- bool nonblock)
+static bool needs_vblank_wait(struct intel_crtc_state *crtc_state)
{
- struct drm_device *dev = crtc->dev;
- struct intel_crtc_state *pipe_config = work->new_crtc_state;
+ /* fb updated, need to unpin old fb */
+ if (crtc_state->fb_changed)
+ return true;
- if (!pipe_config->base.active && work->can_async_unpin) {
- INIT_LIST_HEAD(&work->head);
- intel_schedule_unpin(crtc, state, work);
- return;
- }
+ /* wm changes, need vblank before final wm's */
+ if (crtc_state->update_wm_post)
+ return true;
- spin_lock_irq(&dev->event_lock);
- list_add_tail(&work->head, &to_intel_crtc(crtc)->flip_work);
- spin_unlock_irq(&dev->event_lock);
+ /*
+ * cxsr is re-enabled after vblank.
+ * This is already handled by crtc_state->update_wm_post,
+ * but added for clarity.
+ */
+ if (crtc_state->disable_cxsr)
+ return true;
- if (!pipe_config->base.active)
- intel_schedule_unpin(crtc, state, work);
- else
- intel_schedule_flip(crtc, state, work, nonblock);
+ return false;
}
/**
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_crtc_state *old_crtc_state;
struct drm_crtc *crtc;
+ struct intel_crtc_state *intel_cstate;
int ret = 0, i;
+ bool hw_check = intel_state->modeset;
+ unsigned long put_domains[I915_MAX_PIPES] = {};
+ unsigned crtc_vblank_mask = 0;
ret = intel_atomic_prepare_commit(dev, state, nonblock);
if (ret) {
sizeof(intel_state->min_pixclk));
dev_priv->active_crtcs = intel_state->active_crtcs;
dev_priv->atomic_cdclk_freq = intel_state->cdclk;
+
+ intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET);
}
for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ if (needs_modeset(crtc->state) ||
+ to_intel_crtc_state(crtc->state)->update_pipe) {
+ hw_check = true;
+
+ put_domains[to_intel_crtc(crtc)->pipe] =
+ modeset_get_crtc_power_domains(crtc,
+ to_intel_crtc_state(crtc->state));
+ }
+
if (!needs_modeset(crtc->state))
continue;
intel_pre_plane_update(to_intel_crtc_state(old_crtc_state));
- intel_state->work[i]->put_power_domains =
- modeset_get_crtc_power_domains(crtc,
- to_intel_crtc_state(crtc->state));
-
if (old_crtc_state->active) {
intel_crtc_disable_planes(crtc, old_crtc_state->plane_mask);
dev_priv->display.crtc_disable(crtc);
/* Now enable the clocks, plane, pipe, and connectors that we set up. */
for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
- struct intel_flip_work *work = intel_state->work[i];
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
bool modeset = needs_modeset(crtc->state);
+ struct intel_crtc_state *pipe_config =
+ to_intel_crtc_state(crtc->state);
+ bool update_pipe = !modeset && pipe_config->update_pipe;
if (modeset && crtc->state->active) {
update_scanline_offset(to_intel_crtc(crtc));
if (!modeset)
intel_pre_plane_update(to_intel_crtc_state(old_crtc_state));
- if (!work) {
- if (!list_empty_careful(&intel_crtc->flip_work)) {
- spin_lock_irq(&dev->event_lock);
- if (!list_empty(&intel_crtc->flip_work))
- work = list_last_entry(&intel_crtc->flip_work,
- struct intel_flip_work, head);
-
- if (work && work->new_crtc_state == to_intel_crtc_state(old_crtc_state)) {
- work->free_new_crtc_state = true;
- state->crtc_states[i] = NULL;
- state->crtcs[i] = NULL;
- }
- spin_unlock_irq(&dev->event_lock);
- }
- continue;
- }
+ if (crtc->state->active &&
+ drm_atomic_get_existing_plane_state(state, crtc->primary))
+ intel_fbc_enable(intel_crtc);
- intel_state->work[i] = NULL;
- intel_prepare_work(crtc, work, state, old_crtc_state);
- intel_schedule_update(crtc, intel_state, work, nonblock);
+ if (crtc->state->active &&
+ (crtc->state->planes_changed || update_pipe))
+ drm_atomic_helper_commit_planes_on_crtc(old_crtc_state);
+
+ if (pipe_config->base.active && needs_vblank_wait(pipe_config))
+ crtc_vblank_mask |= 1 << i;
}
/* FIXME: add subpixel order */
+ if (!state->legacy_cursor_update)
+ intel_atomic_wait_for_vblanks(dev, dev_priv, crtc_vblank_mask);
+
+ /*
+ * Now that the vblank has passed, we can go ahead and program the
+ * optimal watermarks on platforms that need two-step watermark
+ * programming.
+ *
+ * TODO: Move this (and other cleanup) to an async worker eventually.
+ */
+ for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
+ intel_cstate = to_intel_crtc_state(crtc->state);
+
+ if (dev_priv->display.optimize_watermarks)
+ dev_priv->display.optimize_watermarks(intel_cstate);
+ }
+
+ for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
+ intel_post_plane_update(to_intel_crtc_state(old_crtc_state));
+
+ if (put_domains[i])
+ modeset_put_power_domains(dev_priv, put_domains[i]);
+
+ intel_modeset_verify_crtc(crtc, old_crtc_state, crtc->state);
+ }
+
+ if (intel_state->modeset)
+ intel_display_power_put(dev_priv, POWER_DOMAIN_MODESET);
+
+ mutex_lock(&dev->struct_mutex);
+ drm_atomic_helper_cleanup_planes(dev, state);
+ mutex_unlock(&dev->struct_mutex);
+
drm_atomic_state_free(state);
/* As one of the primary mmio accessors, KMS has a high likelihood
.set_config = drm_atomic_helper_set_config,
.set_property = drm_atomic_helper_crtc_set_property,
.destroy = intel_crtc_destroy,
- .page_flip = drm_atomic_helper_page_flip,
+ .page_flip = intel_crtc_page_flip,
.atomic_duplicate_state = intel_crtc_duplicate_state,
.atomic_destroy_state = intel_crtc_destroy_state,
};
-static struct fence *intel_get_excl_fence(struct drm_i915_gem_object *obj)
-{
- struct reservation_object *resv;
-
-
- if (!obj->base.dma_buf)
- return NULL;
-
- resv = obj->base.dma_buf->resv;
-
- /* For framebuffer backed by dmabuf, wait for fence */
- while (1) {
- struct fence *fence_excl, *ret = NULL;
-
- rcu_read_lock();
-
- fence_excl = rcu_dereference(resv->fence_excl);
- if (fence_excl)
- ret = fence_get_rcu(fence_excl);
-
- rcu_read_unlock();
-
- if (ret == fence_excl)
- return ret;
- }
-}
-
/**
* intel_prepare_plane_fb - Prepare fb for usage on plane
* @plane: drm plane to prepare for
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_i915_gem_object *obj = intel_fb_obj(fb);
struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->state->fb);
- struct drm_crtc *crtc = new_state->crtc ?: plane->state->crtc;
int ret = 0;
if (!obj && !old_obj)
return 0;
- if (WARN_ON(!new_state->state) || WARN_ON(!crtc) ||
- WARN_ON(!to_intel_atomic_state(new_state->state)->work[to_intel_crtc(crtc)->pipe])) {
- if (WARN_ON(old_obj != obj))
- return -EINVAL;
-
- return 0;
- }
-
if (old_obj) {
struct drm_crtc_state *crtc_state =
drm_atomic_get_existing_crtc_state(new_state->state, plane->state->crtc);
}
}
+ /* For framebuffer backed by dmabuf, wait for fence */
+ if (obj && obj->base.dma_buf) {
+ long lret;
+
+ lret = reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv,
+ false, true,
+ MAX_SCHEDULE_TIMEOUT);
+ if (lret == -ERESTARTSYS)
+ return lret;
+
+ WARN(lret < 0, "waiting returns %li\n", lret);
+ }
+
if (!obj) {
ret = 0;
} else if (plane->type == DRM_PLANE_TYPE_CURSOR &&
i915_gem_request_assign(&plane_state->wait_req,
obj->last_write_req);
-
- plane_state->base.fence = intel_get_excl_fence(obj);
}
i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit);
i915_gem_track_fb(old_obj, obj, intel_plane->frontbuffer_bit);
i915_gem_request_assign(&old_intel_state->wait_req, NULL);
-
- fence_put(old_intel_state->base.fence);
- old_intel_state->base.fence = NULL;
}
int
&state->visible);
}
+static void intel_begin_crtc_commit(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+ struct drm_device *dev = crtc->dev;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_crtc_state *old_intel_state =
+ to_intel_crtc_state(old_crtc_state);
+ bool modeset = needs_modeset(crtc->state);
+
+ /* Perform vblank evasion around commit operation */
+ intel_pipe_update_start(intel_crtc);
+
+ if (modeset)
+ return;
+
+ if (crtc->state->color_mgmt_changed || to_intel_crtc_state(crtc->state)->update_pipe) {
+ intel_color_set_csc(crtc->state);
+ intel_color_load_luts(crtc->state);
+ }
+
+ if (to_intel_crtc_state(crtc->state)->update_pipe)
+ intel_update_pipe_config(intel_crtc, old_intel_state);
+ else if (INTEL_INFO(dev)->gen >= 9)
+ skl_detach_scalers(intel_crtc);
+}
+
+static void intel_finish_crtc_commit(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ intel_pipe_update_end(intel_crtc, NULL);
+}
+
/**
* intel_plane_destroy - destroy a plane
* @plane: plane to destroy
intel_crtc->base.state = &crtc_state->base;
crtc_state->base.crtc = &intel_crtc->base;
- INIT_LIST_HEAD(&intel_crtc->flip_work);
-
/* initialize shared scalers */
if (INTEL_INFO(dev)->gen >= 9) {
if (pipe == PIPE_C)
dev_priv->display.modeset_calc_cdclk =
broxton_modeset_calc_cdclk;
}
+
+ switch (INTEL_INFO(dev_priv)->gen) {
+ case 2:
+ dev_priv->display.queue_flip = intel_gen2_queue_flip;
+ break;
+
+ case 3:
+ dev_priv->display.queue_flip = intel_gen3_queue_flip;
+ break;
+
+ case 4:
+ case 5:
+ dev_priv->display.queue_flip = intel_gen4_queue_flip;
+ break;
+
+ case 6:
+ dev_priv->display.queue_flip = intel_gen6_queue_flip;
+ break;
+ case 7:
+ case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
+ dev_priv->display.queue_flip = intel_gen7_queue_flip;
+ break;
+ case 9:
+ /* Drop through - unsupported since execlist only. */
+ default:
+ /* Default just returns -ENODEV to indicate unsupported */
+ dev_priv->display.queue_flip = intel_default_queue_flip;
+ }
}
/*
DRM_ERROR("failed to pin boot fb on pipe %d\n",
to_intel_crtc(c)->pipe);
drm_framebuffer_unreference(c->primary->fb);
- drm_framebuffer_unreference(c->primary->state->fb);
- c->primary->fb = c->primary->state->fb = NULL;
+ c->primary->fb = NULL;
c->primary->crtc = c->primary->state->crtc = NULL;
+ update_state_fb(c->primary);
c->state->plane_mask &= ~(1 << drm_plane_index(c->primary));
}
}
projects / cascardo / linux.git / commitdiff