129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#include "i915_drv.h"
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#include "intel_crtc.h"
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#include "intel_display_types.h"
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#include "intel_sprite_uapi.h"
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static bool has_dst_key_in_primary_plane(struct drm_i915_private *dev_priv)
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{
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return DISPLAY_VER(dev_priv) >= 9;
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}
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static void intel_plane_set_ckey(struct intel_plane_state *plane_state,
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const struct drm_intel_sprite_colorkey *set)
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{
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struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
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struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
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struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
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*key = *set;
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/*
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* We want src key enabled on the
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* sprite and not on the primary.
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*/
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if (plane->id == PLANE_PRIMARY &&
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set->flags & I915_SET_COLORKEY_SOURCE)
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key->flags = 0;
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/*
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* On SKL+ we want dst key enabled on
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* the primary and not on the sprite.
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*/
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if (DISPLAY_VER(dev_priv) >= 9 && plane->id != PLANE_PRIMARY &&
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set->flags & I915_SET_COLORKEY_DESTINATION)
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key->flags = 0;
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}
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int intel_sprite_set_colorkey_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_i915_private *dev_priv = to_i915(dev);
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struct drm_intel_sprite_colorkey *set = data;
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struct drm_plane *plane;
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struct drm_plane_state *plane_state;
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struct drm_atomic_state *state;
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struct drm_modeset_acquire_ctx ctx;
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int ret = 0;
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/* ignore the pointless "none" flag */
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set->flags &= ~I915_SET_COLORKEY_NONE;
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if (set->flags & ~(I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
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return -EINVAL;
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/* Make sure we don't try to enable both src & dest simultaneously */
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if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
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return -EINVAL;
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if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
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set->flags & I915_SET_COLORKEY_DESTINATION)
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return -EINVAL;
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plane = drm_plane_find(dev, file_priv, set->plane_id);
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if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY)
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return -ENOENT;
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/*
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* SKL+ only plane 2 can do destination keying against plane 1.
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* Also multiple planes can't do destination keying on the same
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* pipe simultaneously.
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*/
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if (DISPLAY_VER(dev_priv) >= 9 &&
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to_intel_plane(plane)->id >= PLANE_SPRITE1 &&
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set->flags & I915_SET_COLORKEY_DESTINATION)
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return -EINVAL;
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drm_modeset_acquire_init(&ctx, 0);
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state = drm_atomic_state_alloc(plane->dev);
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if (!state) {
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ret = -ENOMEM;
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goto out;
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}
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state->acquire_ctx = &ctx;
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to_intel_atomic_state(state)->internal = true;
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while (1) {
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plane_state = drm_atomic_get_plane_state(state, plane);
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ret = PTR_ERR_OR_ZERO(plane_state);
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if (!ret)
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intel_plane_set_ckey(to_intel_plane_state(plane_state), set);
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/*
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* On some platforms we have to configure
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* the dst colorkey on the primary plane.
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*/
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if (!ret && has_dst_key_in_primary_plane(dev_priv)) {
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struct intel_crtc *crtc =
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intel_crtc_for_pipe(dev_priv,
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to_intel_plane(plane)->pipe);
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plane_state = drm_atomic_get_plane_state(state,
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crtc->base.primary);
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ret = PTR_ERR_OR_ZERO(plane_state);
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if (!ret)
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intel_plane_set_ckey(to_intel_plane_state(plane_state), set);
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}
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if (!ret)
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ret = drm_atomic_commit(state);
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if (ret != -EDEADLK)
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break;
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drm_atomic_state_clear(state);
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drm_modeset_backoff(&ctx);
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}
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drm_atomic_state_put(state);
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out:
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drm_modeset_drop_locks(&ctx);
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drm_modeset_acquire_fini(&ctx);
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return ret;
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}
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