* Disable the cursor first if we're disabling all the planes.
* It'll remain on the screen after the planes are re-enabled
* if we don't.
+ *
+ * If the cursor is transitioning from native to overlay mode, the
+ * native cursor needs to be disabled first.
*/
- if (acrtc_state->active_planes == 0)
+ if (acrtc_state->cursor_mode == DM_CURSOR_OVERLAY_MODE &&
+ dm_old_crtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE) {
+ struct dc_cursor_position cursor_position = {0};
+
+ if (!dc_stream_set_cursor_position(acrtc_state->stream,
+ &cursor_position))
+ drm_err(dev, "DC failed to disable native cursor\n");
+
+ bundle->stream_update.cursor_position =
+ &acrtc_state->stream->cursor_position;
+ }
+
+ if (acrtc_state->active_planes == 0 &&
+ dm_old_crtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE)
amdgpu_dm_commit_cursors(state);
/* update planes when needed */
struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
/* Cursor plane is handled after stream updates */
- if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+ if (plane->type == DRM_PLANE_TYPE_CURSOR &&
+ acrtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE) {
if ((fb && crtc == pcrtc) ||
(old_plane_state->fb && old_plane_state->crtc == pcrtc)) {
cursor_update = true;
* to be disabling a single plane - those pipes are being disabled.
*/
if (acrtc_state->active_planes &&
- (!updated_planes_and_streams || amdgpu_ip_version(dm->adev, DCE_HWIP, 0) == 0))
+ (!updated_planes_and_streams || amdgpu_ip_version(dm->adev, DCE_HWIP, 0) == 0) &&
+ acrtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE)
amdgpu_dm_commit_cursors(state);
cleanup:
{
struct drm_plane *other;
struct drm_plane_state *old_other_state, *new_other_state;
- struct drm_crtc_state *new_crtc_state;
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ struct dm_crtc_state *old_dm_crtc_state, *new_dm_crtc_state;
struct amdgpu_device *adev = drm_to_adev(plane->dev);
int i;
new_crtc_state =
drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
+ old_crtc_state =
+ drm_atomic_get_old_crtc_state(state, old_plane_state->crtc);
if (!new_crtc_state)
return true;
+ /*
+ * A change in cursor mode means a new dc pipe needs to be acquired or
+ * released from the state
+ */
+ old_dm_crtc_state = to_dm_crtc_state(old_crtc_state);
+ new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
+ if (plane->type == DRM_PLANE_TYPE_CURSOR &&
+ old_dm_crtc_state != NULL &&
+ old_dm_crtc_state->cursor_mode != new_dm_crtc_state->cursor_mode) {
+ return true;
+ }
+
/* CRTC Degamma changes currently require us to recreate planes. */
if (new_crtc_state->color_mgmt_changed)
return true;
return 0;
}
+/*
+ * Helper function for checking the cursor in native mode
+ */
+static int dm_check_native_cursor_state(struct drm_crtc *new_plane_crtc,
+ struct drm_plane *plane,
+ struct drm_plane_state *new_plane_state,
+ bool enable)
+{
+
+ struct amdgpu_crtc *new_acrtc;
+ int ret;
+
+ if (!enable || !new_plane_crtc ||
+ drm_atomic_plane_disabling(plane->state, new_plane_state))
+ return 0;
+
+ new_acrtc = to_amdgpu_crtc(new_plane_crtc);
+
+ if (new_plane_state->src_x != 0 || new_plane_state->src_y != 0) {
+ DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
+ return -EINVAL;
+ }
+
+ if (new_plane_state->fb) {
+ ret = dm_check_cursor_fb(new_acrtc, new_plane_state,
+ new_plane_state->fb);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static bool dm_should_update_native_cursor(struct drm_atomic_state *state,
+ struct drm_crtc *old_plane_crtc,
+ struct drm_crtc *new_plane_crtc,
+ bool enable)
+{
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+
+ if (!enable) {
+ if (old_plane_crtc == NULL)
+ return true;
+
+ old_crtc_state = drm_atomic_get_old_crtc_state(
+ state, old_plane_crtc);
+ dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+ return dm_old_crtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE;
+ } else {
+ if (new_plane_crtc == NULL)
+ return true;
+
+ new_crtc_state = drm_atomic_get_new_crtc_state(
+ state, new_plane_crtc);
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ return dm_new_crtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE;
+ }
+}
+
static int dm_update_plane_state(struct dc *dc,
struct drm_atomic_state *state,
struct drm_plane *plane,
struct drm_crtc_state *old_crtc_state, *new_crtc_state;
struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state;
struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state;
- struct amdgpu_crtc *new_acrtc;
- bool needs_reset;
+ bool needs_reset, update_native_cursor;
int ret = 0;
dm_new_plane_state = to_dm_plane_state(new_plane_state);
dm_old_plane_state = to_dm_plane_state(old_plane_state);
- if (plane->type == DRM_PLANE_TYPE_CURSOR) {
- if (!enable || !new_plane_crtc ||
- drm_atomic_plane_disabling(plane->state, new_plane_state))
- return 0;
-
- new_acrtc = to_amdgpu_crtc(new_plane_crtc);
+ update_native_cursor = dm_should_update_native_cursor(state,
+ old_plane_crtc,
+ new_plane_crtc,
+ enable);
- if (new_plane_state->src_x != 0 || new_plane_state->src_y != 0) {
- DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
- return -EINVAL;
- }
-
- if (new_plane_state->fb) {
- ret = dm_check_cursor_fb(new_acrtc, new_plane_state,
- new_plane_state->fb);
- if (ret)
- return ret;
- }
+ if (plane->type == DRM_PLANE_TYPE_CURSOR && update_native_cursor) {
+ ret = dm_check_native_cursor_state(new_plane_crtc, plane,
+ new_plane_state, enable);
+ if (ret)
+ return ret;
return 0;
}
ret = amdgpu_dm_plane_helper_check_state(new_plane_state, new_crtc_state);
if (ret)
- return ret;
+ goto out;
WARN_ON(dm_new_plane_state->dc_state);
dc_new_plane_state = dc_create_plane_state(dc);
- if (!dc_new_plane_state)
- return -ENOMEM;
-
- /* Block top most plane from being a video plane */
- if (plane->type == DRM_PLANE_TYPE_OVERLAY) {
- if (amdgpu_dm_plane_is_video_format(new_plane_state->fb->format->format) && *is_top_most_overlay)
- return -EINVAL;
-
- *is_top_most_overlay = false;
+ if (!dc_new_plane_state) {
+ ret = -ENOMEM;
+ goto out;
}
DRM_DEBUG_ATOMIC("Enabling DRM plane: %d on DRM crtc %d\n",
new_crtc_state);
if (ret) {
dc_plane_state_release(dc_new_plane_state);
- return ret;
+ goto out;
}
ret = dm_atomic_get_state(state, &dm_state);
if (ret) {
dc_plane_state_release(dc_new_plane_state);
- return ret;
+ goto out;
}
/*
dm_state->context)) {
dc_plane_state_release(dc_new_plane_state);
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
dm_new_plane_state->dc_state = dc_new_plane_state;
*lock_and_validation_needed = true;
}
+out:
+ /* If enabling cursor overlay failed, attempt fallback to native mode */
+ if (enable && ret == -EINVAL && plane->type == DRM_PLANE_TYPE_CURSOR) {
+ ret = dm_check_native_cursor_state(new_plane_crtc, plane,
+ new_plane_state, enable);
+ if (ret)
+ return ret;
+
+ dm_new_crtc_state->cursor_mode = DM_CURSOR_NATIVE_MODE;
+ }
return ret;
}
*out_plane_scale_h = plane_state->crtc_h * 1000 / plane_src_h;
}
-static int dm_check_crtc_cursor(struct drm_atomic_state *state,
- struct drm_crtc *crtc,
- struct drm_crtc_state *new_crtc_state)
+/*
+ * The normalized_zpos value cannot be used by this iterator directly. It's only
+ * calculated for enabled planes, potentially causing normalized_zpos collisions
+ * between enabled/disabled planes in the atomic state. We need a unique value
+ * so that the iterator will not generate the same object twice, or loop
+ * indefinitely.
+ */
+static inline struct __drm_planes_state *__get_next_zpos(
+ struct drm_atomic_state *state,
+ struct __drm_planes_state *prev)
{
- struct drm_plane *cursor = crtc->cursor, *plane, *underlying;
- struct drm_plane_state *old_plane_state, *new_plane_state;
- struct drm_plane_state *new_cursor_state, *new_underlying_state;
- int i;
- int cursor_scale_w, cursor_scale_h, underlying_scale_w, underlying_scale_h;
- bool any_relevant_change = false;
-
- /* On DCE and DCN there is no dedicated hardware cursor plane. We get a
- * cursor per pipe but it's going to inherit the scaling and
- * positioning from the underlying pipe. Check the cursor plane's
- * blending properties match the underlying planes'.
- */
-
- /* If no plane was enabled or changed scaling, no need to check again */
- for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
- int new_scale_w, new_scale_h, old_scale_w, old_scale_h;
-
- if (!new_plane_state || !new_plane_state->fb || new_plane_state->crtc != crtc)
- continue;
-
- if (!old_plane_state || !old_plane_state->fb || old_plane_state->crtc != crtc) {
- any_relevant_change = true;
- break;
- }
-
- if (new_plane_state->fb == old_plane_state->fb &&
- new_plane_state->crtc_w == old_plane_state->crtc_w &&
- new_plane_state->crtc_h == old_plane_state->crtc_h)
- continue;
-
- dm_get_plane_scale(new_plane_state, &new_scale_w, &new_scale_h);
- dm_get_plane_scale(old_plane_state, &old_scale_w, &old_scale_h);
+ unsigned int highest_zpos = 0, prev_zpos = 256;
+ uint32_t highest_id = 0, prev_id = UINT_MAX;
+ struct drm_plane_state *new_plane_state;
+ struct drm_plane *plane;
+ int i, highest_i = -1;
- if (new_scale_w != old_scale_w || new_scale_h != old_scale_h) {
- any_relevant_change = true;
- break;
- }
+ if (prev != NULL) {
+ prev_zpos = prev->new_state->zpos;
+ prev_id = prev->ptr->base.id;
}
- if (!any_relevant_change)
- return 0;
-
- new_cursor_state = drm_atomic_get_plane_state(state, cursor);
- if (IS_ERR(new_cursor_state))
- return PTR_ERR(new_cursor_state);
-
- if (!new_cursor_state->fb)
- return 0;
-
- dm_get_plane_scale(new_cursor_state, &cursor_scale_w, &cursor_scale_h);
-
- /* Need to check all enabled planes, even if this commit doesn't change
- * their state
- */
- i = drm_atomic_add_affected_planes(state, crtc);
- if (i)
- return i;
-
- for_each_new_plane_in_state_reverse(state, underlying, new_underlying_state, i) {
- /* Narrow down to non-cursor planes on the same CRTC as the cursor */
- if (new_underlying_state->crtc != crtc || underlying == crtc->cursor)
+ for_each_new_plane_in_state(state, plane, new_plane_state, i) {
+ /* Skip planes with higher zpos than the previously returned */
+ if (new_plane_state->zpos > prev_zpos ||
+ (new_plane_state->zpos == prev_zpos &&
+ plane->base.id >= prev_id))
continue;
- /* Ignore disabled planes */
- if (!new_underlying_state->fb)
- continue;
-
- dm_get_plane_scale(new_underlying_state,
- &underlying_scale_w, &underlying_scale_h);
-
- if (cursor_scale_w != underlying_scale_w ||
- cursor_scale_h != underlying_scale_h) {
- drm_dbg_atomic(crtc->dev,
- "Cursor [PLANE:%d:%s] scaling doesn't match underlying [PLANE:%d:%s]\n",
- cursor->base.id, cursor->name, underlying->base.id, underlying->name);
- return -EINVAL;
+ /* Save the index of the plane with highest zpos */
+ if (new_plane_state->zpos > highest_zpos ||
+ (new_plane_state->zpos == highest_zpos &&
+ plane->base.id > highest_id)) {
+ highest_zpos = new_plane_state->zpos;
+ highest_id = plane->base.id;
+ highest_i = i;
}
-
- /* If this plane covers the whole CRTC, no need to check planes underneath */
- if (new_underlying_state->crtc_x <= 0 &&
- new_underlying_state->crtc_y <= 0 &&
- new_underlying_state->crtc_x + new_underlying_state->crtc_w >= new_crtc_state->mode.hdisplay &&
- new_underlying_state->crtc_y + new_underlying_state->crtc_h >= new_crtc_state->mode.vdisplay)
- break;
}
- return 0;
+ if (highest_i < 0)
+ return NULL;
+
+ return &state->planes[highest_i];
}
+/*
+ * Use the uniqueness of the plane's (zpos, drm obj ID) combination to iterate
+ * by descending zpos, as read from the new plane state. This is the same
+ * ordering as defined by drm_atomic_normalize_zpos().
+ */
+#define for_each_oldnew_plane_in_descending_zpos(__state, plane, old_plane_state, new_plane_state) \
+ for (struct __drm_planes_state *__i = __get_next_zpos((__state), NULL); \
+ __i != NULL; __i = __get_next_zpos((__state), __i)) \
+ for_each_if(((plane) = __i->ptr, \
+ (void)(plane) /* Only to avoid unused-but-set-variable warning */, \
+ (old_plane_state) = __i->old_state, \
+ (new_plane_state) = __i->new_state, 1))
+
static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc)
{
struct drm_connector *connector;
return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_root->mst_mgr);
}
+/**
+ * DOC: Cursor Modes - Native vs Overlay
+ *
+ * In native mode, the cursor uses a integrated cursor pipe within each DCN hw
+ * plane. It does not require a dedicated hw plane to enable, but it is
+ * subjected to the same z-order and scaling as the hw plane. It also has format
+ * restrictions, a RGB cursor in native mode cannot be enabled within a non-RGB
+ * hw plane.
+ *
+ * In overlay mode, the cursor uses a separate DCN hw plane, and thus has its
+ * own scaling and z-pos. It also has no blending restrictions. It lends to a
+ * cursor behavior more akin to a DRM client's expectations. However, it does
+ * occupy an extra DCN plane, and therefore will only be used if a DCN plane is
+ * available.
+ */
+
+/**
+ * dm_crtc_get_cursor_mode() - Determine the required cursor mode on crtc
+ * @adev: amdgpu device
+ * @state: DRM atomic state
+ * @dm_crtc_state: amdgpu state for the CRTC containing the cursor
+ * @cursor_mode: Returns the required cursor mode on dm_crtc_state
+ *
+ * Get whether the cursor should be enabled in native mode, or overlay mode, on
+ * the dm_crtc_state.
+ *
+ * The cursor should be enabled in overlay mode if there exists an underlying
+ * plane - on which the cursor may be blended - that is either YUV formatted, or
+ * scaled differently from the cursor.
+ *
+ * Since zpos info is required, drm_atomic_normalize_zpos must be called before
+ * calling this function.
+ *
+ * Return: 0 on success, or an error code if getting the cursor plane state
+ * failed.
+ */
+static int dm_crtc_get_cursor_mode(struct amdgpu_device *adev,
+ struct drm_atomic_state *state,
+ struct dm_crtc_state *dm_crtc_state,
+ enum amdgpu_dm_cursor_mode *cursor_mode)
+{
+ struct drm_plane_state *old_plane_state, *plane_state, *cursor_state;
+ struct drm_crtc_state *crtc_state = &dm_crtc_state->base;
+ struct drm_plane *plane;
+ bool consider_mode_change = false;
+ bool entire_crtc_covered = false;
+ bool cursor_changed = false;
+ int underlying_scale_w, underlying_scale_h;
+ int cursor_scale_w, cursor_scale_h;
+ int i;
+
+ /* Overlay cursor not supported on HW before DCN */
+ if (amdgpu_ip_version(adev, DCE_HWIP, 0) == 0) {
+ *cursor_mode = DM_CURSOR_NATIVE_MODE;
+ return 0;
+ }
+
+ /* Init cursor_mode to be the same as current */
+ *cursor_mode = dm_crtc_state->cursor_mode;
+
+ /*
+ * Cursor mode can change if a plane's format changes, scale changes, is
+ * enabled/disabled, or z-order changes.
+ */
+ for_each_oldnew_plane_in_state(state, plane, old_plane_state, plane_state, i) {
+ int new_scale_w, new_scale_h, old_scale_w, old_scale_h;
+
+ /* Only care about planes on this CRTC */
+ if ((drm_plane_mask(plane) & crtc_state->plane_mask) == 0)
+ continue;
+
+ if (plane->type == DRM_PLANE_TYPE_CURSOR)
+ cursor_changed = true;
+
+ if (drm_atomic_plane_enabling(old_plane_state, plane_state) ||
+ drm_atomic_plane_disabling(old_plane_state, plane_state) ||
+ old_plane_state->fb->format != plane_state->fb->format) {
+ consider_mode_change = true;
+ break;
+ }
+
+ dm_get_plane_scale(plane_state, &new_scale_w, &new_scale_h);
+ dm_get_plane_scale(old_plane_state, &old_scale_w, &old_scale_h);
+ if (new_scale_w != old_scale_w || new_scale_h != old_scale_h) {
+ consider_mode_change = true;
+ break;
+ }
+ }
+
+ if (!consider_mode_change && !crtc_state->zpos_changed)
+ return 0;
+
+ /*
+ * If no cursor change on this CRTC, and not enabled on this CRTC, then
+ * no need to set cursor mode. This avoids needlessly locking the cursor
+ * state.
+ */
+ if (!cursor_changed &&
+ !(drm_plane_mask(crtc_state->crtc->cursor) & crtc_state->plane_mask)) {
+ return 0;
+ }
+
+ cursor_state = drm_atomic_get_plane_state(state,
+ crtc_state->crtc->cursor);
+ if (IS_ERR(cursor_state))
+ return PTR_ERR(cursor_state);
+
+ /* Cursor is disabled */
+ if (!cursor_state->fb)
+ return 0;
+
+ /* For all planes in descending z-order (all of which are below cursor
+ * as per zpos definitions), check their scaling and format
+ */
+ for_each_oldnew_plane_in_descending_zpos(state, plane, old_plane_state, plane_state) {
+
+ /* Only care about non-cursor planes on this CRTC */
+ if ((drm_plane_mask(plane) & crtc_state->plane_mask) == 0 ||
+ plane->type == DRM_PLANE_TYPE_CURSOR)
+ continue;
+
+ /* Underlying plane is YUV format - use overlay cursor */
+ if (amdgpu_dm_plane_is_video_format(plane_state->fb->format->format)) {
+ *cursor_mode = DM_CURSOR_OVERLAY_MODE;
+ return 0;
+ }
+
+ dm_get_plane_scale(plane_state,
+ &underlying_scale_w, &underlying_scale_h);
+ dm_get_plane_scale(cursor_state,
+ &cursor_scale_w, &cursor_scale_h);
+
+ /* Underlying plane has different scale - use overlay cursor */
+ if (cursor_scale_w != underlying_scale_w &&
+ cursor_scale_h != underlying_scale_h) {
+ *cursor_mode = DM_CURSOR_OVERLAY_MODE;
+ return 0;
+ }
+
+ /* If this plane covers the whole CRTC, no need to check planes underneath */
+ if (plane_state->crtc_x <= 0 && plane_state->crtc_y <= 0 &&
+ plane_state->crtc_x + plane_state->crtc_w >= crtc_state->mode.hdisplay &&
+ plane_state->crtc_y + plane_state->crtc_h >= crtc_state->mode.vdisplay) {
+ entire_crtc_covered = true;
+ break;
+ }
+ }
+
+ /* If planes do not cover the entire CRTC, use overlay mode to enable
+ * cursor over holes
+ */
+ if (entire_crtc_covered)
+ *cursor_mode = DM_CURSOR_NATIVE_MODE;
+ else
+ *cursor_mode = DM_CURSOR_OVERLAY_MODE;
+
+ return 0;
+}
+
/**
* amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
*
goto fail;
}
+ /*
+ * Determine whether cursors on each CRTC should be enabled in native or
+ * overlay mode.
+ */
+ for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ ret = dm_crtc_get_cursor_mode(adev, state, dm_new_crtc_state,
+ &dm_new_crtc_state->cursor_mode);
+ if (ret) {
+ drm_dbg(dev, "Failed to determine cursor mode\n");
+ goto fail;
+ }
+ }
+
/* Remove exiting planes if they are modified */
for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
if (old_plane_state->fb && new_plane_state->fb &&
drm_dbg_atomic(dev, "MPO enablement requested on crtc:[%p]\n", crtc);
}
- /* Check cursor planes scaling */
+ /* Check cursor planes restrictions */
for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
- ret = dm_check_crtc_cursor(state, crtc, new_crtc_state);
+ enum amdgpu_dm_cursor_mode required_cursor_mode;
+
+ /* Overlay cusor not subject to native cursor restrictions */
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+ if (dm_new_crtc_state->cursor_mode == DM_CURSOR_OVERLAY_MODE)
+ continue;
+
+ /* If HW can only do native cursor, check restrictions again */
+ ret = dm_crtc_get_cursor_mode(adev, state, dm_new_crtc_state,
+ &required_cursor_mode);
+
if (ret) {
- drm_dbg_atomic(dev, "dm_check_crtc_cursor() failed\n");
+ drm_dbg_driver(crtc->dev,
+ "[CRTC:%d:%s] Checking cursor mode failed\n",
+ crtc->base.id, crtc->name);
+ goto fail;
+ } else if (required_cursor_mode == DM_CURSOR_OVERLAY_MODE) {
+ drm_dbg_driver(crtc->dev,
+ "[CRTC:%d:%s] Cannot enable native cursor due to scaling or YUV restrictions\n",
+ crtc->base.id, crtc->name);
+ ret = -EINVAL;
goto fail;
}
}
projects / users / hch / dma-mapping.git / commitdiff