diff options
Diffstat (limited to 'drivers/gpu/drm/drm_blend.c')
| -rw-r--r-- | drivers/gpu/drm/drm_blend.c | 46 |
1 files changed, 29 insertions, 17 deletions
diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c index f1dcad96f341..6852d73c931c 100644 --- a/drivers/gpu/drm/drm_blend.c +++ b/drivers/gpu/drm/drm_blend.c @@ -75,12 +75,18 @@ * the currently visible vertical area of the &drm_crtc. * FB_ID: * Mode object ID of the &drm_framebuffer this plane should scan out. + * + * When a KMS client is performing front-buffer rendering, it should set + * FB_ID to the same front-buffer FB on each atomic commit. This implies + * to the driver that it needs to re-read the same FB again. Otherwise + * drivers which do not employ continuously repeated scanout cycles might + * not update the screen. * CRTC_ID: * Mode object ID of the &drm_crtc this plane should be connected to. * * Note that the source rectangle must fully lie within the bounds of the * &drm_framebuffer. The destination rectangle can lie outside of the visible - * area of the current mode of the CRTC. It must be apprpriately clipped by the + * area of the current mode of the CRTC. It must be appropriately clipped by the * driver, which can be done by calling drm_plane_helper_check_update(). Drivers * are also allowed to round the subpixel sampling positions appropriately, but * only to the next full pixel. No pixel outside of the source rectangle may @@ -185,15 +191,22 @@ * plane does not expose the "alpha" property, then this is * assumed to be 1.0 * - * IN_FORMATS: - * Blob property which contains the set of buffer format and modifier - * pairs supported by this plane. The blob is a drm_format_modifier_blob - * struct. Without this property the plane doesn't support buffers with - * modifiers. Userspace cannot change this property. - * * Note that all the property extensions described here apply either to the * plane or the CRTC (e.g. for the background color, which currently is not * exposed and assumed to be black). + * + * SCALING_FILTER: + * Indicates scaling filter to be used for plane scaler + * + * The value of this property can be one of the following: + * + * Default: + * Driver's default scaling filter + * Nearest Neighbor: + * Nearest Neighbor scaling filter + * + * Drivers can set up this property for a plane by calling + * drm_plane_create_scaling_filter_property */ /** @@ -310,7 +323,7 @@ EXPORT_SYMBOL(drm_plane_create_rotation_property); * DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_180 | * DRM_MODE_ROTATE_270 | DRM_MODE_REFLECT_Y); * - * to eliminate the DRM_MODE_ROTATE_X flag. Depending on what kind of + * to eliminate the DRM_MODE_REFLECT_X flag. Depending on what kind of * transforms the hardware supports, this function may not * be able to produce a supported transform, so the caller should * check the result afterwards. @@ -321,8 +334,8 @@ unsigned int drm_rotation_simplify(unsigned int rotation, if (rotation & ~supported_rotations) { rotation ^= DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y; rotation = (rotation & DRM_MODE_REFLECT_MASK) | - BIT((ffs(rotation & DRM_MODE_ROTATE_MASK) + 1) - % 4); + BIT((ffs(rotation & DRM_MODE_ROTATE_MASK) + 1) + % 4); } return rotation; @@ -443,8 +456,8 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc, int i, n = 0; int ret = 0; - DRM_DEBUG_ATOMIC("[CRTC:%d:%s] calculating normalized zpos values\n", - crtc->base.id, crtc->name); + drm_dbg_atomic(dev, "[CRTC:%d:%s] calculating normalized zpos values\n", + crtc->base.id, crtc->name); states = kmalloc_array(total_planes, sizeof(*states), GFP_KERNEL); if (!states) @@ -462,9 +475,8 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc, goto done; } states[n++] = plane_state; - DRM_DEBUG_ATOMIC("[PLANE:%d:%s] processing zpos value %d\n", - plane->base.id, plane->name, - plane_state->zpos); + drm_dbg_atomic(dev, "[PLANE:%d:%s] processing zpos value %d\n", + plane->base.id, plane->name, plane_state->zpos); } sort(states, n, sizeof(*states), drm_atomic_state_zpos_cmp, NULL); @@ -473,8 +485,8 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc, plane = states[i]->plane; states[i]->normalized_zpos = i; - DRM_DEBUG_ATOMIC("[PLANE:%d:%s] normalized zpos value %d\n", - plane->base.id, plane->name, i); + drm_dbg_atomic(dev, "[PLANE:%d:%s] normalized zpos value %d\n", + plane->base.id, plane->name, i); } crtc_state->zpos_changed = true; |