static inline bool fbc_on_pipe_a_only(struct drm_i915_private *dev_priv)
{
- return IS_HASWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 8;
+ return IS_HASWELL(dev_priv) || INTEL_GEN(dev_priv) >= 8;
}
static inline bool fbc_on_plane_a_only(struct drm_i915_private *dev_priv)
{
- return INTEL_INFO(dev_priv)->gen < 4;
+ return INTEL_GEN(dev_priv) < 4;
}
static inline bool no_fbc_on_multiple_pipes(struct drm_i915_private *dev_priv)
{
- return INTEL_INFO(dev_priv)->gen <= 3;
+ return INTEL_GEN(dev_priv) <= 3;
}
/*
{
int w, h;
- if (intel_rotation_90_or_270(cache->plane.rotation)) {
+ if (drm_rotation_90_or_270(cache->plane.rotation)) {
w = cache->plane.src_h;
h = cache->plane.src_w;
} else {
if (IS_I945GM(dev_priv))
fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */
fbc_ctl |= (cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;
- fbc_ctl |= params->fb.fence_reg;
+ fbc_ctl |= params->vma->fence->id;
I915_WRITE(FBC_CONTROL, fbc_ctl);
}
else
dpfc_ctl |= DPFC_CTL_LIMIT_1X;
- if (params->fb.fence_reg != I915_FENCE_REG_NONE) {
- dpfc_ctl |= DPFC_CTL_FENCE_EN | params->fb.fence_reg;
+ if (params->vma->fence) {
+ dpfc_ctl |= DPFC_CTL_FENCE_EN | params->vma->fence->id;
I915_WRITE(DPFC_FENCE_YOFF, params->crtc.fence_y_offset);
} else {
I915_WRITE(DPFC_FENCE_YOFF, 0);
break;
}
- if (params->fb.fence_reg != I915_FENCE_REG_NONE) {
+ if (params->vma->fence) {
dpfc_ctl |= DPFC_CTL_FENCE_EN;
if (IS_GEN5(dev_priv))
- dpfc_ctl |= params->fb.fence_reg;
+ dpfc_ctl |= params->vma->fence->id;
if (IS_GEN6(dev_priv)) {
I915_WRITE(SNB_DPFC_CTL_SA,
- SNB_CPU_FENCE_ENABLE | params->fb.fence_reg);
+ SNB_CPU_FENCE_ENABLE |
+ params->vma->fence->id);
I915_WRITE(DPFC_CPU_FENCE_OFFSET,
params->crtc.fence_y_offset);
}
}
I915_WRITE(ILK_DPFC_FENCE_YOFF, params->crtc.fence_y_offset);
- I915_WRITE(ILK_FBC_RT_BASE, params->fb.ggtt_offset | ILK_FBC_RT_VALID);
+ I915_WRITE(ILK_FBC_RT_BASE,
+ i915_ggtt_offset(params->vma) | ILK_FBC_RT_VALID);
/* enable it... */
I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN);
break;
}
- if (params->fb.fence_reg != I915_FENCE_REG_NONE) {
+ if (params->vma->fence) {
dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;
I915_WRITE(SNB_DPFC_CTL_SA,
- SNB_CPU_FENCE_ENABLE | params->fb.fence_reg);
+ SNB_CPU_FENCE_ENABLE |
+ params->vma->fence->id);
I915_WRITE(DPFC_CPU_FENCE_OFFSET, params->crtc.fence_y_offset);
} else {
I915_WRITE(SNB_DPFC_CTL_SA,0);
static bool intel_fbc_hw_is_active(struct drm_i915_private *dev_priv)
{
- if (INTEL_INFO(dev_priv)->gen >= 5)
+ if (INTEL_GEN(dev_priv) >= 5)
return ilk_fbc_is_active(dev_priv);
else if (IS_GM45(dev_priv))
return g4x_fbc_is_active(dev_priv);
fbc->active = true;
- if (INTEL_INFO(dev_priv)->gen >= 7)
+ if (INTEL_GEN(dev_priv) >= 7)
gen7_fbc_activate(dev_priv);
- else if (INTEL_INFO(dev_priv)->gen >= 5)
+ else if (INTEL_GEN(dev_priv) >= 5)
ilk_fbc_activate(dev_priv);
else if (IS_GM45(dev_priv))
g4x_fbc_activate(dev_priv);
fbc->active = false;
- if (INTEL_INFO(dev_priv)->gen >= 5)
+ if (INTEL_GEN(dev_priv) >= 5)
ilk_fbc_deactivate(dev_priv);
else if (IS_GM45(dev_priv))
g4x_fbc_deactivate(dev_priv);
ret = i915_gem_stolen_insert_node_in_range(dev_priv, node, size >>= 1,
4096, 0, end);
- if (ret && INTEL_INFO(dev_priv)->gen <= 4) {
+ if (ret && INTEL_GEN(dev_priv) <= 4) {
return 0;
} else if (ret) {
compression_threshold <<= 1;
fbc->threshold = ret;
- if (INTEL_INFO(dev_priv)->gen >= 5)
+ if (INTEL_GEN(dev_priv) >= 5)
I915_WRITE(ILK_DPFC_CB_BASE, fbc->compressed_fb.start);
else if (IS_GM45(dev_priv)) {
I915_WRITE(DPFC_CB_BASE, fbc->compressed_fb.start);
struct intel_fbc *fbc = &dev_priv->fbc;
unsigned int effective_w, effective_h, max_w, max_h;
- if (INTEL_INFO(dev_priv)->gen >= 8 || IS_HASWELL(dev_priv)) {
+ if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv)) {
max_w = 4096;
max_h = 4096;
- } else if (IS_G4X(dev_priv) || INTEL_INFO(dev_priv)->gen >= 5) {
+ } else if (IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {
max_w = 4096;
max_h = 2048;
} else {
return effective_w <= max_w && effective_h <= max_h;
}
-/* XXX replace me when we have VMA tracking for intel_plane_state */
-static int get_fence_id(struct drm_framebuffer *fb)
-{
- struct i915_vma *vma = i915_gem_object_to_ggtt(intel_fb_obj(fb), NULL);
-
- return vma && vma->fence ? vma->fence->id : I915_FENCE_REG_NONE;
-}
-
static void intel_fbc_update_state_cache(struct intel_crtc *crtc,
struct intel_crtc_state *crtc_state,
struct intel_plane_state *plane_state)
struct intel_fbc *fbc = &dev_priv->fbc;
struct intel_fbc_state_cache *cache = &fbc->state_cache;
struct drm_framebuffer *fb = plane_state->base.fb;
- struct drm_i915_gem_object *obj;
+
+ cache->vma = NULL;
cache->crtc.mode_flags = crtc_state->base.adjusted_mode.flags;
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
if (!cache->plane.visible)
return;
- obj = intel_fb_obj(fb);
-
- /* FIXME: We lack the proper locking here, so only run this on the
- * platforms that need. */
- if (IS_GEN(dev_priv, 5, 6))
- cache->fb.ilk_ggtt_offset = i915_gem_object_ggtt_offset(obj, NULL);
cache->fb.pixel_format = fb->pixel_format;
cache->fb.stride = fb->pitches[0];
- cache->fb.fence_reg = get_fence_id(fb);
- cache->fb.tiling_mode = i915_gem_object_get_tiling(obj);
+
+ cache->vma = plane_state->vma;
}
static bool intel_fbc_can_activate(struct intel_crtc *crtc)
struct intel_fbc *fbc = &dev_priv->fbc;
struct intel_fbc_state_cache *cache = &fbc->state_cache;
- if (!cache->plane.visible) {
+ /* We don't need to use a state cache here since this information is
+ * global for all CRTC.
+ */
+ if (fbc->underrun_detected) {
+ fbc->no_fbc_reason = "underrun detected";
+ return false;
+ }
+
+ if (!cache->vma) {
fbc->no_fbc_reason = "primary plane not visible";
return false;
}
* so have no fence associated with it) due to aperture constaints
* at the time of pinning.
*/
- if (cache->fb.tiling_mode != I915_TILING_X ||
- cache->fb.fence_reg == I915_FENCE_REG_NONE) {
+ if (!cache->vma->fence) {
fbc->no_fbc_reason = "framebuffer not tiled or fenced";
return false;
}
- if (INTEL_INFO(dev_priv)->gen <= 4 && !IS_G4X(dev_priv) &&
+ if (INTEL_GEN(dev_priv) <= 4 && !IS_G4X(dev_priv) &&
cache->plane.rotation != DRM_ROTATE_0) {
fbc->no_fbc_reason = "rotation unsupported";
return false;
return true;
}
-static bool intel_fbc_can_choose(struct intel_crtc *crtc)
+static bool intel_fbc_can_enable(struct drm_i915_private *dev_priv)
{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct intel_fbc *fbc = &dev_priv->fbc;
if (intel_vgpu_active(dev_priv)) {
return false;
}
- if (fbc_on_pipe_a_only(dev_priv) && crtc->pipe != PIPE_A) {
- fbc->no_fbc_reason = "no enabled pipes can have FBC";
- return false;
- }
-
- if (fbc_on_plane_a_only(dev_priv) && crtc->plane != PLANE_A) {
- fbc->no_fbc_reason = "no enabled planes can have FBC";
+ if (fbc->underrun_detected) {
+ fbc->no_fbc_reason = "underrun detected";
return false;
}
* zero. */
memset(params, 0, sizeof(*params));
+ params->vma = cache->vma;
+
params->crtc.pipe = crtc->pipe;
params->crtc.plane = crtc->plane;
params->crtc.fence_y_offset = get_crtc_fence_y_offset(crtc);
params->fb.pixel_format = cache->fb.pixel_format;
params->fb.stride = cache->fb.stride;
- params->fb.fence_reg = cache->fb.fence_reg;
params->cfb_size = intel_fbc_calculate_cfb_size(dev_priv, cache);
-
- params->fb.ggtt_offset = cache->fb.ilk_ggtt_offset;
}
static bool intel_fbc_reg_params_equal(struct intel_fbc_reg_params *params1,
struct drm_atomic_state *state)
{
struct intel_fbc *fbc = &dev_priv->fbc;
- struct drm_crtc *crtc;
- struct drm_crtc_state *crtc_state;
struct drm_plane *plane;
struct drm_plane_state *plane_state;
- bool fbc_crtc_present = false;
- int i, j;
+ bool crtc_chosen = false;
+ int i;
mutex_lock(&fbc->lock);
- for_each_crtc_in_state(state, crtc, crtc_state, i) {
- if (fbc->crtc == to_intel_crtc(crtc)) {
- fbc_crtc_present = true;
- break;
- }
- }
- /* This atomic commit doesn't involve the CRTC currently tied to FBC. */
- if (!fbc_crtc_present && fbc->crtc != NULL)
+ /* Does this atomic commit involve the CRTC currently tied to FBC? */
+ if (fbc->crtc &&
+ !drm_atomic_get_existing_crtc_state(state, &fbc->crtc->base))
+ goto out;
+
+ if (!intel_fbc_can_enable(dev_priv))
goto out;
/* Simply choose the first CRTC that is compatible and has a visible
for_each_plane_in_state(state, plane, plane_state, i) {
struct intel_plane_state *intel_plane_state =
to_intel_plane_state(plane_state);
+ struct intel_crtc_state *intel_crtc_state;
+ struct intel_crtc *crtc = to_intel_crtc(plane_state->crtc);
if (!intel_plane_state->base.visible)
continue;
- for_each_crtc_in_state(state, crtc, crtc_state, j) {
- struct intel_crtc_state *intel_crtc_state =
- to_intel_crtc_state(crtc_state);
+ if (fbc_on_pipe_a_only(dev_priv) && crtc->pipe != PIPE_A)
+ continue;
- if (plane_state->crtc != crtc)
- continue;
+ if (fbc_on_plane_a_only(dev_priv) && crtc->plane != PLANE_A)
+ continue;
- if (!intel_fbc_can_choose(to_intel_crtc(crtc)))
- break;
+ intel_crtc_state = to_intel_crtc_state(
+ drm_atomic_get_existing_crtc_state(state, &crtc->base));
- intel_crtc_state->enable_fbc = true;
- goto out;
- }
+ intel_crtc_state->enable_fbc = true;
+ crtc_chosen = true;
+ break;
}
+ if (!crtc_chosen)
+ fbc->no_fbc_reason = "no suitable CRTC for FBC";
+
out:
mutex_unlock(&fbc->lock);
}
cancel_work_sync(&fbc->work.work);
}
+static void intel_fbc_underrun_work_fn(struct work_struct *work)
+{
+ struct drm_i915_private *dev_priv =
+ container_of(work, struct drm_i915_private, fbc.underrun_work);
+ struct intel_fbc *fbc = &dev_priv->fbc;
+
+ mutex_lock(&fbc->lock);
+
+ /* Maybe we were scheduled twice. */
+ if (fbc->underrun_detected)
+ goto out;
+
+ DRM_DEBUG_KMS("Disabling FBC due to FIFO underrun.\n");
+ fbc->underrun_detected = true;
+
+ intel_fbc_deactivate(dev_priv);
+out:
+ mutex_unlock(&fbc->lock);
+}
+
+/**
+ * intel_fbc_handle_fifo_underrun_irq - disable FBC when we get a FIFO underrun
+ * @dev_priv: i915 device instance
+ *
+ * Without FBC, most underruns are harmless and don't really cause too many
+ * problems, except for an annoying message on dmesg. With FBC, underruns can
+ * become black screens or even worse, especially when paired with bad
+ * watermarks. So in order for us to be on the safe side, completely disable FBC
+ * in case we ever detect a FIFO underrun on any pipe. An underrun on any pipe
+ * already suggests that watermarks may be bad, so try to be as safe as
+ * possible.
+ *
+ * This function is called from the IRQ handler.
+ */
+void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv)
+{
+ struct intel_fbc *fbc = &dev_priv->fbc;
+
+ if (!fbc_supported(dev_priv))
+ return;
+
+ /* There's no guarantee that underrun_detected won't be set to true
+ * right after this check and before the work is scheduled, but that's
+ * not a problem since we'll check it again under the work function
+ * while FBC is locked. This check here is just to prevent us from
+ * unnecessarily scheduling the work, and it relies on the fact that we
+ * never switch underrun_detect back to false after it's true. */
+ if (READ_ONCE(fbc->underrun_detected))
+ return;
+
+ schedule_work(&fbc->underrun_work);
+}
+
/**
* intel_fbc_init_pipe_state - initialize FBC's CRTC visibility tracking
* @dev_priv: i915 device instance
return;
for_each_intel_crtc(&dev_priv->drm, crtc)
- if (intel_crtc_active(&crtc->base) &&
+ if (intel_crtc_active(crtc) &&
to_intel_plane_state(crtc->base.primary->state)->base.visible)
dev_priv->fbc.visible_pipes_mask |= (1 << crtc->pipe);
}
enum pipe pipe;
INIT_WORK(&fbc->work.work, intel_fbc_work_fn);
+ INIT_WORK(&fbc->underrun_work, intel_fbc_underrun_work_fn);
mutex_init(&fbc->lock);
fbc->enabled = false;
fbc->active = false;
}
/* This value was pulled out of someone's hat */
- if (INTEL_INFO(dev_priv)->gen <= 4 && !IS_GM45(dev_priv))
+ if (INTEL_GEN(dev_priv) <= 4 && !IS_GM45(dev_priv))
I915_WRITE(FBC_CONTROL, 500 << FBC_CTL_INTERVAL_SHIFT);
/* We still don't have any sort of hardware state readout for FBC, so
projects / karo-tx-linux.git / blobdiff