2016-09-21 16:59:24 +08:00
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <drm/drmP.h>
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#include <drm/drm_plane.h>
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#include "drm_crtc_internal.h"
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2016-09-21 16:59:25 +08:00
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/**
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* DOC: overview
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*
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* A plane represents an image source that can be blended with or overlayed on
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* top of a CRTC during the scanout process. Planes take their input data from a
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* &drm_framebuffer object. The plane itself specifies the cropping and scaling
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* of that image, and where it is placed on the visible are of a display
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* pipeline, represented by &drm_crtc. A plane can also have additional
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* properties that specify how the pixels are positioned and blended, like
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* rotation or Z-position. All these properties are stored in &drm_plane_state.
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*
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* To create a plane, a KMS drivers allocates and zeroes an instances of
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2016-12-30 04:48:26 +08:00
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* &struct drm_plane (possibly as part of a larger structure) and registers it
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2016-09-21 16:59:25 +08:00
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* with a call to drm_universal_plane_init().
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*
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* Cursor and overlay planes are optional. All drivers should provide one
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* primary plane per CRTC to avoid surprising userspace too much. See enum
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2017-01-25 14:26:45 +08:00
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* drm_plane_type for a more in-depth discussion of these special uapi-relevant
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2016-09-21 16:59:25 +08:00
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* plane types. Special planes are associated with their CRTC by calling
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* drm_crtc_init_with_planes().
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2016-09-21 16:59:27 +08:00
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*
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* The type of a plane is exposed in the immutable "type" enumeration property,
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* which has one of the following values: "Overlay", "Primary", "Cursor".
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2016-09-21 16:59:25 +08:00
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*/
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2016-09-21 16:59:24 +08:00
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static unsigned int drm_num_planes(struct drm_device *dev)
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{
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unsigned int num = 0;
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struct drm_plane *tmp;
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drm_for_each_plane(tmp, dev) {
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num++;
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}
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return num;
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}
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2017-07-24 11:46:39 +08:00
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static inline u32 *
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formats_ptr(struct drm_format_modifier_blob *blob)
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{
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return (u32 *)(((char *)blob) + blob->formats_offset);
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}
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static inline struct drm_format_modifier *
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modifiers_ptr(struct drm_format_modifier_blob *blob)
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{
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return (struct drm_format_modifier *)(((char *)blob) + blob->modifiers_offset);
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}
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static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane)
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{
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const struct drm_mode_config *config = &dev->mode_config;
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struct drm_property_blob *blob;
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struct drm_format_modifier *mod;
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size_t blob_size, formats_size, modifiers_size;
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struct drm_format_modifier_blob *blob_data;
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unsigned int i, j;
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formats_size = sizeof(__u32) * plane->format_count;
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if (WARN_ON(!formats_size)) {
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/* 0 formats are never expected */
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return 0;
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}
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modifiers_size =
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sizeof(struct drm_format_modifier) * plane->modifier_count;
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blob_size = sizeof(struct drm_format_modifier_blob);
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/* Modifiers offset is a pointer to a struct with a 64 bit field so it
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* should be naturally aligned to 8B.
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*/
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BUILD_BUG_ON(sizeof(struct drm_format_modifier_blob) % 8);
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blob_size += ALIGN(formats_size, 8);
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blob_size += modifiers_size;
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blob = drm_property_create_blob(dev, blob_size, NULL);
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if (IS_ERR(blob))
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return -1;
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blob_data = (struct drm_format_modifier_blob *)blob->data;
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blob_data->version = FORMAT_BLOB_CURRENT;
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blob_data->count_formats = plane->format_count;
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blob_data->formats_offset = sizeof(struct drm_format_modifier_blob);
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blob_data->count_modifiers = plane->modifier_count;
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blob_data->modifiers_offset =
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ALIGN(blob_data->formats_offset + formats_size, 8);
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memcpy(formats_ptr(blob_data), plane->format_types, formats_size);
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/* If we can't determine support, just bail */
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if (!plane->funcs->format_mod_supported)
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goto done;
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mod = modifiers_ptr(blob_data);
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for (i = 0; i < plane->modifier_count; i++) {
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for (j = 0; j < plane->format_count; j++) {
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if (plane->funcs->format_mod_supported(plane,
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plane->format_types[j],
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plane->modifiers[i])) {
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2017-08-09 19:19:06 +08:00
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mod->formats |= 1ULL << j;
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2017-07-24 11:46:39 +08:00
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}
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}
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mod->modifier = plane->modifiers[i];
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mod->offset = 0;
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mod->pad = 0;
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mod++;
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}
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done:
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drm_object_attach_property(&plane->base, config->modifiers_property,
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blob->base.id);
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return 0;
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}
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2016-09-21 16:59:24 +08:00
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/**
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* drm_universal_plane_init - Initialize a new universal plane object
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* @dev: DRM device
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* @plane: plane object to init
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* @possible_crtcs: bitmask of possible CRTCs
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* @funcs: callbacks for the new plane
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* @formats: array of supported formats (DRM_FORMAT\_\*)
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* @format_count: number of elements in @formats
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2017-07-24 11:46:38 +08:00
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* @format_modifiers: array of struct drm_format modifiers terminated by
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* DRM_FORMAT_MOD_INVALID
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2016-09-21 16:59:24 +08:00
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* @type: type of plane (overlay, primary, cursor)
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* @name: printf style format string for the plane name, or NULL for default name
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*
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* Initializes a plane object of type @type.
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*
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* Returns:
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* Zero on success, error code on failure.
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*/
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int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
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2016-12-02 21:45:35 +08:00
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uint32_t possible_crtcs,
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2016-09-21 16:59:24 +08:00
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const struct drm_plane_funcs *funcs,
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const uint32_t *formats, unsigned int format_count,
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2017-07-24 11:46:38 +08:00
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const uint64_t *format_modifiers,
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2016-09-21 16:59:24 +08:00
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enum drm_plane_type type,
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const char *name, ...)
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{
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struct drm_mode_config *config = &dev->mode_config;
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2017-07-24 11:46:38 +08:00
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unsigned int format_modifier_count = 0;
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2016-09-21 16:59:24 +08:00
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int ret;
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2017-02-28 22:46:37 +08:00
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ret = drm_mode_object_add(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
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2016-09-21 16:59:24 +08:00
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if (ret)
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return ret;
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drm_modeset_lock_init(&plane->mutex);
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plane->base.properties = &plane->properties;
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plane->dev = dev;
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plane->funcs = funcs;
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plane->format_types = kmalloc_array(format_count, sizeof(uint32_t),
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GFP_KERNEL);
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if (!plane->format_types) {
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DRM_DEBUG_KMS("out of memory when allocating plane\n");
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drm_mode_object_unregister(dev, &plane->base);
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return -ENOMEM;
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}
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2017-07-24 11:46:38 +08:00
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/*
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* First driver to need more than 64 formats needs to fix this. Each
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* format is encoded as a bit and the current code only supports a u64.
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*/
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if (WARN_ON(format_count > 64))
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return -EINVAL;
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if (format_modifiers) {
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const uint64_t *temp_modifiers = format_modifiers;
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while (*temp_modifiers++ != DRM_FORMAT_MOD_INVALID)
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format_modifier_count++;
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}
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plane->modifier_count = format_modifier_count;
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plane->modifiers = kmalloc_array(format_modifier_count,
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sizeof(format_modifiers[0]),
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GFP_KERNEL);
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if (format_modifier_count && !plane->modifiers) {
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DRM_DEBUG_KMS("out of memory when allocating plane\n");
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kfree(plane->format_types);
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drm_mode_object_unregister(dev, &plane->base);
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return -ENOMEM;
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}
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2016-09-21 16:59:24 +08:00
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if (name) {
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va_list ap;
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va_start(ap, name);
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plane->name = kvasprintf(GFP_KERNEL, name, ap);
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va_end(ap);
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} else {
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plane->name = kasprintf(GFP_KERNEL, "plane-%d",
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drm_num_planes(dev));
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}
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if (!plane->name) {
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kfree(plane->format_types);
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2017-07-24 11:46:38 +08:00
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kfree(plane->modifiers);
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2016-09-21 16:59:24 +08:00
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drm_mode_object_unregister(dev, &plane->base);
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return -ENOMEM;
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}
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memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
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plane->format_count = format_count;
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2017-07-24 11:46:38 +08:00
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memcpy(plane->modifiers, format_modifiers,
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format_modifier_count * sizeof(format_modifiers[0]));
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2016-09-21 16:59:24 +08:00
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plane->possible_crtcs = possible_crtcs;
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plane->type = type;
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list_add_tail(&plane->head, &config->plane_list);
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plane->index = config->num_total_plane++;
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if (plane->type == DRM_PLANE_TYPE_OVERLAY)
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config->num_overlay_plane++;
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drm_object_attach_property(&plane->base,
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config->plane_type_property,
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plane->type);
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if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
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drm_object_attach_property(&plane->base, config->prop_fb_id, 0);
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2016-11-15 21:06:39 +08:00
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drm_object_attach_property(&plane->base, config->prop_in_fence_fd, -1);
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2016-09-21 16:59:24 +08:00
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drm_object_attach_property(&plane->base, config->prop_crtc_id, 0);
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drm_object_attach_property(&plane->base, config->prop_crtc_x, 0);
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drm_object_attach_property(&plane->base, config->prop_crtc_y, 0);
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drm_object_attach_property(&plane->base, config->prop_crtc_w, 0);
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drm_object_attach_property(&plane->base, config->prop_crtc_h, 0);
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drm_object_attach_property(&plane->base, config->prop_src_x, 0);
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drm_object_attach_property(&plane->base, config->prop_src_y, 0);
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drm_object_attach_property(&plane->base, config->prop_src_w, 0);
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drm_object_attach_property(&plane->base, config->prop_src_h, 0);
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}
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2017-07-24 11:46:39 +08:00
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if (config->allow_fb_modifiers)
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create_in_format_blob(dev, plane);
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2016-09-21 16:59:24 +08:00
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return 0;
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}
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EXPORT_SYMBOL(drm_universal_plane_init);
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int drm_plane_register_all(struct drm_device *dev)
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{
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struct drm_plane *plane;
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int ret = 0;
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drm_for_each_plane(plane, dev) {
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if (plane->funcs->late_register)
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ret = plane->funcs->late_register(plane);
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if (ret)
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return ret;
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}
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return 0;
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}
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void drm_plane_unregister_all(struct drm_device *dev)
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{
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struct drm_plane *plane;
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drm_for_each_plane(plane, dev) {
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if (plane->funcs->early_unregister)
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plane->funcs->early_unregister(plane);
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}
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}
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/**
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* drm_plane_init - Initialize a legacy plane
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* @dev: DRM device
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* @plane: plane object to init
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* @possible_crtcs: bitmask of possible CRTCs
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* @funcs: callbacks for the new plane
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* @formats: array of supported formats (DRM_FORMAT\_\*)
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* @format_count: number of elements in @formats
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* @is_primary: plane type (primary vs overlay)
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*
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* Legacy API to initialize a DRM plane.
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*
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* New drivers should call drm_universal_plane_init() instead.
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*
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* Returns:
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* Zero on success, error code on failure.
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*/
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int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
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2016-12-02 21:45:35 +08:00
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uint32_t possible_crtcs,
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2016-09-21 16:59:24 +08:00
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const struct drm_plane_funcs *funcs,
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const uint32_t *formats, unsigned int format_count,
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bool is_primary)
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{
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enum drm_plane_type type;
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type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
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return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
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2017-07-24 11:46:38 +08:00
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formats, format_count,
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NULL, type, NULL);
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2016-09-21 16:59:24 +08:00
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}
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EXPORT_SYMBOL(drm_plane_init);
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/**
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* drm_plane_cleanup - Clean up the core plane usage
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* @plane: plane to cleanup
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*
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* This function cleans up @plane and removes it from the DRM mode setting
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* core. Note that the function does *not* free the plane structure itself,
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* this is the responsibility of the caller.
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*/
|
|
|
|
void drm_plane_cleanup(struct drm_plane *plane)
|
|
|
|
{
|
|
|
|
struct drm_device *dev = plane->dev;
|
|
|
|
|
2016-11-29 17:45:38 +08:00
|
|
|
drm_modeset_lock_fini(&plane->mutex);
|
|
|
|
|
2016-09-21 16:59:24 +08:00
|
|
|
kfree(plane->format_types);
|
2017-07-24 11:46:38 +08:00
|
|
|
kfree(plane->modifiers);
|
2016-09-21 16:59:24 +08:00
|
|
|
drm_mode_object_unregister(dev, &plane->base);
|
|
|
|
|
|
|
|
BUG_ON(list_empty(&plane->head));
|
|
|
|
|
|
|
|
/* Note that the plane_list is considered to be static; should we
|
|
|
|
* remove the drm_plane at runtime we would have to decrement all
|
|
|
|
* the indices on the drm_plane after us in the plane_list.
|
|
|
|
*/
|
|
|
|
|
|
|
|
list_del(&plane->head);
|
|
|
|
dev->mode_config.num_total_plane--;
|
|
|
|
if (plane->type == DRM_PLANE_TYPE_OVERLAY)
|
|
|
|
dev->mode_config.num_overlay_plane--;
|
|
|
|
|
|
|
|
WARN_ON(plane->state && !plane->funcs->atomic_destroy_state);
|
|
|
|
if (plane->state && plane->funcs->atomic_destroy_state)
|
|
|
|
plane->funcs->atomic_destroy_state(plane, plane->state);
|
|
|
|
|
|
|
|
kfree(plane->name);
|
|
|
|
|
|
|
|
memset(plane, 0, sizeof(*plane));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_plane_cleanup);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_plane_from_index - find the registered plane at an index
|
|
|
|
* @dev: DRM device
|
|
|
|
* @idx: index of registered plane to find for
|
|
|
|
*
|
|
|
|
* Given a plane index, return the registered plane from DRM device's
|
2017-01-07 16:52:11 +08:00
|
|
|
* list of planes with matching index. This is the inverse of drm_plane_index().
|
2016-09-21 16:59:24 +08:00
|
|
|
*/
|
|
|
|
struct drm_plane *
|
|
|
|
drm_plane_from_index(struct drm_device *dev, int idx)
|
|
|
|
{
|
|
|
|
struct drm_plane *plane;
|
|
|
|
|
|
|
|
drm_for_each_plane(plane, dev)
|
|
|
|
if (idx == plane->index)
|
|
|
|
return plane;
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_plane_from_index);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_plane_force_disable - Forcibly disable a plane
|
|
|
|
* @plane: plane to disable
|
|
|
|
*
|
|
|
|
* Forces the plane to be disabled.
|
|
|
|
*
|
|
|
|
* Used when the plane's current framebuffer is destroyed,
|
|
|
|
* and when restoring fbdev mode.
|
2017-03-23 05:50:42 +08:00
|
|
|
*
|
|
|
|
* Note that this function is not suitable for atomic drivers, since it doesn't
|
|
|
|
* wire through the lock acquisition context properly and hence can't handle
|
|
|
|
* retries or driver private locks. You probably want to use
|
|
|
|
* drm_atomic_helper_disable_plane() or
|
|
|
|
* drm_atomic_helper_disable_planes_on_crtc() instead.
|
2016-09-21 16:59:24 +08:00
|
|
|
*/
|
|
|
|
void drm_plane_force_disable(struct drm_plane *plane)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (!plane->fb)
|
|
|
|
return;
|
|
|
|
|
2017-03-23 05:50:42 +08:00
|
|
|
WARN_ON(drm_drv_uses_atomic_modeset(plane->dev));
|
|
|
|
|
2016-09-21 16:59:24 +08:00
|
|
|
plane->old_fb = plane->fb;
|
2017-03-23 05:50:43 +08:00
|
|
|
ret = plane->funcs->disable_plane(plane, NULL);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (ret) {
|
|
|
|
DRM_ERROR("failed to disable plane with busy fb\n");
|
|
|
|
plane->old_fb = NULL;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/* disconnect the plane from the fb and crtc: */
|
2017-02-28 22:46:40 +08:00
|
|
|
drm_framebuffer_put(plane->old_fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
plane->old_fb = NULL;
|
|
|
|
plane->fb = NULL;
|
|
|
|
plane->crtc = NULL;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_plane_force_disable);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* drm_mode_plane_set_obj_prop - set the value of a property
|
|
|
|
* @plane: drm plane object to set property value for
|
|
|
|
* @property: property to set
|
|
|
|
* @value: value the property should be set to
|
|
|
|
*
|
|
|
|
* This functions sets a given property on a given plane object. This function
|
|
|
|
* calls the driver's ->set_property callback and changes the software state of
|
|
|
|
* the property if the callback succeeds.
|
|
|
|
*
|
|
|
|
* Returns:
|
|
|
|
* Zero on success, error code on failure.
|
|
|
|
*/
|
|
|
|
int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
|
|
|
|
struct drm_property *property,
|
|
|
|
uint64_t value)
|
|
|
|
{
|
|
|
|
int ret = -EINVAL;
|
|
|
|
struct drm_mode_object *obj = &plane->base;
|
|
|
|
|
|
|
|
if (plane->funcs->set_property)
|
|
|
|
ret = plane->funcs->set_property(plane, property, value);
|
|
|
|
if (!ret)
|
|
|
|
drm_object_property_set_value(obj, property, value);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
|
|
|
|
|
|
|
|
int drm_mode_getplane_res(struct drm_device *dev, void *data,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_get_plane_res *plane_resp = data;
|
|
|
|
struct drm_mode_config *config;
|
|
|
|
struct drm_plane *plane;
|
|
|
|
uint32_t __user *plane_ptr;
|
|
|
|
int copied = 0;
|
|
|
|
unsigned num_planes;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
config = &dev->mode_config;
|
|
|
|
|
|
|
|
if (file_priv->universal_planes)
|
|
|
|
num_planes = config->num_total_plane;
|
|
|
|
else
|
|
|
|
num_planes = config->num_overlay_plane;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This ioctl is called twice, once to determine how much space is
|
|
|
|
* needed, and the 2nd time to fill it.
|
|
|
|
*/
|
|
|
|
if (num_planes &&
|
|
|
|
(plane_resp->count_planes >= num_planes)) {
|
|
|
|
plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
|
|
|
|
|
|
|
|
/* Plane lists are invariant, no locking needed. */
|
|
|
|
drm_for_each_plane(plane, dev) {
|
|
|
|
/*
|
|
|
|
* Unless userspace set the 'universal planes'
|
|
|
|
* capability bit, only advertise overlays.
|
|
|
|
*/
|
|
|
|
if (plane->type != DRM_PLANE_TYPE_OVERLAY &&
|
|
|
|
!file_priv->universal_planes)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (put_user(plane->base.id, plane_ptr + copied))
|
|
|
|
return -EFAULT;
|
|
|
|
copied++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
plane_resp->count_planes = num_planes;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int drm_mode_getplane(struct drm_device *dev, void *data,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_get_plane *plane_resp = data;
|
|
|
|
struct drm_plane *plane;
|
|
|
|
uint32_t __user *format_ptr;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2017-03-15 14:25:07 +08:00
|
|
|
plane = drm_plane_find(dev, file_priv, plane_resp->plane_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!plane)
|
|
|
|
return -ENOENT;
|
|
|
|
|
|
|
|
drm_modeset_lock(&plane->mutex, NULL);
|
2016-12-14 02:19:12 +08:00
|
|
|
if (plane->state && plane->state->crtc)
|
|
|
|
plane_resp->crtc_id = plane->state->crtc->base.id;
|
|
|
|
else if (!plane->state && plane->crtc)
|
2016-09-21 16:59:24 +08:00
|
|
|
plane_resp->crtc_id = plane->crtc->base.id;
|
|
|
|
else
|
|
|
|
plane_resp->crtc_id = 0;
|
|
|
|
|
2016-12-14 02:19:12 +08:00
|
|
|
if (plane->state && plane->state->fb)
|
|
|
|
plane_resp->fb_id = plane->state->fb->base.id;
|
|
|
|
else if (!plane->state && plane->fb)
|
2016-09-21 16:59:24 +08:00
|
|
|
plane_resp->fb_id = plane->fb->base.id;
|
|
|
|
else
|
|
|
|
plane_resp->fb_id = 0;
|
|
|
|
drm_modeset_unlock(&plane->mutex);
|
|
|
|
|
|
|
|
plane_resp->plane_id = plane->base.id;
|
|
|
|
plane_resp->possible_crtcs = plane->possible_crtcs;
|
|
|
|
plane_resp->gamma_size = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This ioctl is called twice, once to determine how much space is
|
|
|
|
* needed, and the 2nd time to fill it.
|
|
|
|
*/
|
|
|
|
if (plane->format_count &&
|
|
|
|
(plane_resp->count_format_types >= plane->format_count)) {
|
|
|
|
format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
|
|
|
|
if (copy_to_user(format_ptr,
|
|
|
|
plane->format_types,
|
|
|
|
sizeof(uint32_t) * plane->format_count)) {
|
|
|
|
return -EFAULT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
plane_resp->count_format_types = plane->format_count;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = 0; i < plane->format_count; i++) {
|
|
|
|
if (format == plane->format_types[i])
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* setplane_internal - setplane handler for internal callers
|
|
|
|
*
|
|
|
|
* Note that we assume an extra reference has already been taken on fb. If the
|
|
|
|
* update fails, this reference will be dropped before return; if it succeeds,
|
|
|
|
* the previous framebuffer (if any) will be unreferenced instead.
|
|
|
|
*
|
|
|
|
* src_{x,y,w,h} are provided in 16.16 fixed point format
|
|
|
|
*/
|
|
|
|
static int __setplane_internal(struct drm_plane *plane,
|
|
|
|
struct drm_crtc *crtc,
|
|
|
|
struct drm_framebuffer *fb,
|
|
|
|
int32_t crtc_x, int32_t crtc_y,
|
|
|
|
uint32_t crtc_w, uint32_t crtc_h,
|
|
|
|
/* src_{x,y,w,h} values are 16.16 fixed point */
|
|
|
|
uint32_t src_x, uint32_t src_y,
|
2017-03-23 05:50:40 +08:00
|
|
|
uint32_t src_w, uint32_t src_h,
|
|
|
|
struct drm_modeset_acquire_ctx *ctx)
|
2016-09-21 16:59:24 +08:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
/* No fb means shut it down */
|
|
|
|
if (!fb) {
|
|
|
|
plane->old_fb = plane->fb;
|
2017-03-23 05:50:43 +08:00
|
|
|
ret = plane->funcs->disable_plane(plane, ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!ret) {
|
|
|
|
plane->crtc = NULL;
|
|
|
|
plane->fb = NULL;
|
|
|
|
} else {
|
|
|
|
plane->old_fb = NULL;
|
|
|
|
}
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check whether this plane is usable on this CRTC */
|
|
|
|
if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) {
|
|
|
|
DRM_DEBUG_KMS("Invalid crtc for plane\n");
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check whether this plane supports the fb pixel format. */
|
2016-12-15 05:32:55 +08:00
|
|
|
ret = drm_plane_check_pixel_format(plane, fb->format->format);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (ret) {
|
2016-11-12 09:12:56 +08:00
|
|
|
struct drm_format_name_buf format_name;
|
|
|
|
DRM_DEBUG_KMS("Invalid pixel format %s\n",
|
2016-12-15 05:32:55 +08:00
|
|
|
drm_get_format_name(fb->format->format,
|
2016-11-12 09:12:56 +08:00
|
|
|
&format_name));
|
2016-09-21 16:59:24 +08:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Give drivers some help against integer overflows */
|
|
|
|
if (crtc_w > INT_MAX ||
|
|
|
|
crtc_x > INT_MAX - (int32_t) crtc_w ||
|
|
|
|
crtc_h > INT_MAX ||
|
|
|
|
crtc_y > INT_MAX - (int32_t) crtc_h) {
|
|
|
|
DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
|
|
|
|
crtc_w, crtc_h, crtc_x, crtc_y);
|
|
|
|
ret = -ERANGE;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = drm_framebuffer_check_src_coords(src_x, src_y, src_w, src_h, fb);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
plane->old_fb = plane->fb;
|
|
|
|
ret = plane->funcs->update_plane(plane, crtc, fb,
|
|
|
|
crtc_x, crtc_y, crtc_w, crtc_h,
|
2017-03-23 05:50:41 +08:00
|
|
|
src_x, src_y, src_w, src_h, ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!ret) {
|
|
|
|
plane->crtc = crtc;
|
|
|
|
plane->fb = fb;
|
|
|
|
fb = NULL;
|
|
|
|
} else {
|
|
|
|
plane->old_fb = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (fb)
|
2017-02-28 22:46:40 +08:00
|
|
|
drm_framebuffer_put(fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (plane->old_fb)
|
2017-02-28 22:46:40 +08:00
|
|
|
drm_framebuffer_put(plane->old_fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
plane->old_fb = NULL;
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int setplane_internal(struct drm_plane *plane,
|
|
|
|
struct drm_crtc *crtc,
|
|
|
|
struct drm_framebuffer *fb,
|
|
|
|
int32_t crtc_x, int32_t crtc_y,
|
|
|
|
uint32_t crtc_w, uint32_t crtc_h,
|
|
|
|
/* src_{x,y,w,h} values are 16.16 fixed point */
|
|
|
|
uint32_t src_x, uint32_t src_y,
|
|
|
|
uint32_t src_w, uint32_t src_h)
|
|
|
|
{
|
2017-03-23 05:50:40 +08:00
|
|
|
struct drm_modeset_acquire_ctx ctx;
|
2016-09-21 16:59:24 +08:00
|
|
|
int ret;
|
|
|
|
|
2017-09-12 21:37:47 +08:00
|
|
|
drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
|
2017-03-23 05:50:40 +08:00
|
|
|
retry:
|
|
|
|
ret = drm_modeset_lock_all_ctx(plane->dev, &ctx);
|
|
|
|
if (ret)
|
|
|
|
goto fail;
|
2016-09-21 16:59:24 +08:00
|
|
|
ret = __setplane_internal(plane, crtc, fb,
|
|
|
|
crtc_x, crtc_y, crtc_w, crtc_h,
|
2017-03-23 05:50:40 +08:00
|
|
|
src_x, src_y, src_w, src_h, &ctx);
|
|
|
|
|
|
|
|
fail:
|
|
|
|
if (ret == -EDEADLK) {
|
2017-09-12 21:37:47 +08:00
|
|
|
ret = drm_modeset_backoff(&ctx);
|
|
|
|
if (!ret)
|
|
|
|
goto retry;
|
2017-03-23 05:50:40 +08:00
|
|
|
}
|
|
|
|
drm_modeset_drop_locks(&ctx);
|
|
|
|
drm_modeset_acquire_fini(&ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
int drm_mode_setplane(struct drm_device *dev, void *data,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_set_plane *plane_req = data;
|
|
|
|
struct drm_plane *plane;
|
|
|
|
struct drm_crtc *crtc = NULL;
|
|
|
|
struct drm_framebuffer *fb = NULL;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* First, find the plane, crtc, and fb objects. If not available,
|
|
|
|
* we don't bother to call the driver.
|
|
|
|
*/
|
2017-03-15 14:25:07 +08:00
|
|
|
plane = drm_plane_find(dev, file_priv, plane_req->plane_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!plane) {
|
|
|
|
DRM_DEBUG_KMS("Unknown plane ID %d\n",
|
|
|
|
plane_req->plane_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (plane_req->fb_id) {
|
2017-03-15 14:25:07 +08:00
|
|
|
fb = drm_framebuffer_lookup(dev, file_priv, plane_req->fb_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!fb) {
|
|
|
|
DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
|
|
|
|
plane_req->fb_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
|
2017-03-15 14:25:07 +08:00
|
|
|
crtc = drm_crtc_find(dev, file_priv, plane_req->crtc_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!crtc) {
|
2017-08-09 11:53:01 +08:00
|
|
|
drm_framebuffer_put(fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
DRM_DEBUG_KMS("Unknown crtc ID %d\n",
|
|
|
|
plane_req->crtc_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* setplane_internal will take care of deref'ing either the old or new
|
|
|
|
* framebuffer depending on success.
|
|
|
|
*/
|
|
|
|
return setplane_internal(plane, crtc, fb,
|
|
|
|
plane_req->crtc_x, plane_req->crtc_y,
|
|
|
|
plane_req->crtc_w, plane_req->crtc_h,
|
|
|
|
plane_req->src_x, plane_req->src_y,
|
|
|
|
plane_req->src_w, plane_req->src_h);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int drm_mode_cursor_universal(struct drm_crtc *crtc,
|
|
|
|
struct drm_mode_cursor2 *req,
|
2017-04-03 16:32:51 +08:00
|
|
|
struct drm_file *file_priv,
|
|
|
|
struct drm_modeset_acquire_ctx *ctx)
|
2016-09-21 16:59:24 +08:00
|
|
|
{
|
|
|
|
struct drm_device *dev = crtc->dev;
|
|
|
|
struct drm_framebuffer *fb = NULL;
|
|
|
|
struct drm_mode_fb_cmd2 fbreq = {
|
|
|
|
.width = req->width,
|
|
|
|
.height = req->height,
|
|
|
|
.pixel_format = DRM_FORMAT_ARGB8888,
|
|
|
|
.pitches = { req->width * 4 },
|
|
|
|
.handles = { req->handle },
|
|
|
|
};
|
|
|
|
int32_t crtc_x, crtc_y;
|
|
|
|
uint32_t crtc_w = 0, crtc_h = 0;
|
|
|
|
uint32_t src_w = 0, src_h = 0;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
BUG_ON(!crtc->cursor);
|
|
|
|
WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Obtain fb we'll be using (either new or existing) and take an extra
|
|
|
|
* reference to it if fb != null. setplane will take care of dropping
|
|
|
|
* the reference if the plane update fails.
|
|
|
|
*/
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_BO) {
|
|
|
|
if (req->handle) {
|
|
|
|
fb = drm_internal_framebuffer_create(dev, &fbreq, file_priv);
|
|
|
|
if (IS_ERR(fb)) {
|
|
|
|
DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
|
|
|
|
return PTR_ERR(fb);
|
|
|
|
}
|
|
|
|
fb->hot_x = req->hot_x;
|
|
|
|
fb->hot_y = req->hot_y;
|
|
|
|
} else {
|
|
|
|
fb = NULL;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
fb = crtc->cursor->fb;
|
|
|
|
if (fb)
|
2017-02-28 22:46:40 +08:00
|
|
|
drm_framebuffer_get(fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_MOVE) {
|
|
|
|
crtc_x = req->x;
|
|
|
|
crtc_y = req->y;
|
|
|
|
} else {
|
|
|
|
crtc_x = crtc->cursor_x;
|
|
|
|
crtc_y = crtc->cursor_y;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fb) {
|
|
|
|
crtc_w = fb->width;
|
|
|
|
crtc_h = fb->height;
|
|
|
|
src_w = fb->width << 16;
|
|
|
|
src_h = fb->height << 16;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* setplane_internal will take care of deref'ing either the old or new
|
|
|
|
* framebuffer depending on success.
|
|
|
|
*/
|
|
|
|
ret = __setplane_internal(crtc->cursor, crtc, fb,
|
|
|
|
crtc_x, crtc_y, crtc_w, crtc_h,
|
2017-04-03 16:32:51 +08:00
|
|
|
0, 0, src_w, src_h, ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
|
|
|
|
/* Update successful; save new cursor position, if necessary */
|
|
|
|
if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) {
|
|
|
|
crtc->cursor_x = req->x;
|
|
|
|
crtc->cursor_y = req->y;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int drm_mode_cursor_common(struct drm_device *dev,
|
|
|
|
struct drm_mode_cursor2 *req,
|
|
|
|
struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_crtc *crtc;
|
2017-04-03 16:32:51 +08:00
|
|
|
struct drm_modeset_acquire_ctx ctx;
|
2016-09-21 16:59:24 +08:00
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2017-03-15 14:25:07 +08:00
|
|
|
crtc = drm_crtc_find(dev, file_priv, req->crtc_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!crtc) {
|
|
|
|
DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
|
|
|
|
return -ENOENT;
|
|
|
|
}
|
|
|
|
|
2017-09-12 21:37:46 +08:00
|
|
|
drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
|
2017-04-03 16:32:51 +08:00
|
|
|
retry:
|
|
|
|
ret = drm_modeset_lock(&crtc->mutex, &ctx);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
2016-09-21 16:59:24 +08:00
|
|
|
/*
|
|
|
|
* If this crtc has a universal cursor plane, call that plane's update
|
|
|
|
* handler rather than using legacy cursor handlers.
|
|
|
|
*/
|
2017-04-03 16:32:51 +08:00
|
|
|
if (crtc->cursor) {
|
2017-04-08 00:48:17 +08:00
|
|
|
ret = drm_modeset_lock(&crtc->cursor->mutex, &ctx);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
2017-04-03 16:32:51 +08:00
|
|
|
ret = drm_mode_cursor_universal(crtc, req, file_priv, &ctx);
|
|
|
|
goto out;
|
|
|
|
}
|
2016-09-21 16:59:24 +08:00
|
|
|
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_BO) {
|
|
|
|
if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
|
|
|
|
ret = -ENXIO;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
/* Turns off the cursor if handle is 0 */
|
|
|
|
if (crtc->funcs->cursor_set2)
|
|
|
|
ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
|
|
|
|
req->width, req->height, req->hot_x, req->hot_y);
|
|
|
|
else
|
|
|
|
ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
|
|
|
|
req->width, req->height);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (req->flags & DRM_MODE_CURSOR_MOVE) {
|
|
|
|
if (crtc->funcs->cursor_move) {
|
|
|
|
ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
|
|
|
|
} else {
|
|
|
|
ret = -EFAULT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
out:
|
2017-04-03 16:32:51 +08:00
|
|
|
if (ret == -EDEADLK) {
|
2017-09-12 21:37:46 +08:00
|
|
|
ret = drm_modeset_backoff(&ctx);
|
|
|
|
if (!ret)
|
|
|
|
goto retry;
|
2017-04-03 16:32:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
drm_modeset_drop_locks(&ctx);
|
|
|
|
drm_modeset_acquire_fini(&ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int drm_mode_cursor_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_cursor *req = data;
|
|
|
|
struct drm_mode_cursor2 new_req;
|
|
|
|
|
|
|
|
memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
|
|
|
|
new_req.hot_x = new_req.hot_y = 0;
|
|
|
|
|
|
|
|
return drm_mode_cursor_common(dev, &new_req, file_priv);
|
|
|
|
}
|
|
|
|
|
2016-09-21 16:59:25 +08:00
|
|
|
/*
|
2016-09-21 16:59:24 +08:00
|
|
|
* Set the cursor configuration based on user request. This implements the 2nd
|
|
|
|
* version of the cursor ioctl, which allows userspace to additionally specify
|
|
|
|
* the hotspot of the pointer.
|
|
|
|
*/
|
|
|
|
int drm_mode_cursor2_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_cursor2 *req = data;
|
|
|
|
|
|
|
|
return drm_mode_cursor_common(dev, req, file_priv);
|
|
|
|
}
|
|
|
|
|
|
|
|
int drm_mode_page_flip_ioctl(struct drm_device *dev,
|
|
|
|
void *data, struct drm_file *file_priv)
|
|
|
|
{
|
|
|
|
struct drm_mode_crtc_page_flip_target *page_flip = data;
|
|
|
|
struct drm_crtc *crtc;
|
|
|
|
struct drm_framebuffer *fb = NULL;
|
|
|
|
struct drm_pending_vblank_event *e = NULL;
|
|
|
|
u32 target_vblank = page_flip->sequence;
|
2017-03-23 05:50:49 +08:00
|
|
|
struct drm_modeset_acquire_ctx ctx;
|
2016-09-21 16:59:24 +08:00
|
|
|
int ret = -EINVAL;
|
|
|
|
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (page_flip->sequence != 0 && !(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* Only one of the DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags
|
|
|
|
* can be specified
|
|
|
|
*/
|
|
|
|
if ((page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) == DRM_MODE_PAGE_FLIP_TARGET)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2017-03-15 14:25:07 +08:00
|
|
|
crtc = drm_crtc_find(dev, file_priv, page_flip->crtc_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!crtc)
|
|
|
|
return -ENOENT;
|
|
|
|
|
2016-10-03 16:28:27 +08:00
|
|
|
if (crtc->funcs->page_flip_target) {
|
|
|
|
u32 current_vblank;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
r = drm_crtc_vblank_get(crtc);
|
|
|
|
if (r)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
current_vblank = drm_crtc_vblank_count(crtc);
|
|
|
|
|
|
|
|
switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) {
|
|
|
|
case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE:
|
|
|
|
if ((int)(target_vblank - current_vblank) > 1) {
|
|
|
|
DRM_DEBUG("Invalid absolute flip target %u, "
|
|
|
|
"must be <= %u\n", target_vblank,
|
|
|
|
current_vblank + 1);
|
|
|
|
drm_crtc_vblank_put(crtc);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case DRM_MODE_PAGE_FLIP_TARGET_RELATIVE:
|
|
|
|
if (target_vblank != 0 && target_vblank != 1) {
|
|
|
|
DRM_DEBUG("Invalid relative flip target %u, "
|
|
|
|
"must be 0 or 1\n", target_vblank);
|
|
|
|
drm_crtc_vblank_put(crtc);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
target_vblank += current_vblank;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
target_vblank = current_vblank +
|
|
|
|
!(page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else if (crtc->funcs->page_flip == NULL ||
|
|
|
|
(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) {
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2017-09-12 21:37:48 +08:00
|
|
|
drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
|
2017-03-23 05:50:49 +08:00
|
|
|
retry:
|
|
|
|
ret = drm_modeset_lock(&crtc->mutex, &ctx);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
2017-03-31 04:48:31 +08:00
|
|
|
ret = drm_modeset_lock(&crtc->primary->mutex, &ctx);
|
2017-03-23 05:50:49 +08:00
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
2016-09-21 16:59:24 +08:00
|
|
|
if (crtc->primary->fb == NULL) {
|
|
|
|
/* The framebuffer is currently unbound, presumably
|
|
|
|
* due to a hotplug event, that userspace has not
|
|
|
|
* yet discovered.
|
|
|
|
*/
|
|
|
|
ret = -EBUSY;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2017-03-15 14:25:07 +08:00
|
|
|
fb = drm_framebuffer_lookup(dev, file_priv, page_flip->fb_id);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (!fb) {
|
|
|
|
ret = -ENOENT;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (crtc->state) {
|
|
|
|
const struct drm_plane_state *state = crtc->primary->state;
|
|
|
|
|
|
|
|
ret = drm_framebuffer_check_src_coords(state->src_x,
|
|
|
|
state->src_y,
|
|
|
|
state->src_w,
|
|
|
|
state->src_h,
|
|
|
|
fb);
|
|
|
|
} else {
|
|
|
|
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
|
|
|
|
}
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
2016-11-19 03:53:10 +08:00
|
|
|
if (crtc->primary->fb->format != fb->format) {
|
2016-09-21 16:59:24 +08:00
|
|
|
DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
|
|
|
|
e = kzalloc(sizeof *e, GFP_KERNEL);
|
|
|
|
if (!e) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
|
|
|
|
e->event.base.length = sizeof(e->event);
|
|
|
|
e->event.user_data = page_flip->user_data;
|
|
|
|
ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base);
|
|
|
|
if (ret) {
|
|
|
|
kfree(e);
|
2017-03-30 21:32:53 +08:00
|
|
|
e = NULL;
|
2016-09-21 16:59:24 +08:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
crtc->primary->old_fb = crtc->primary->fb;
|
|
|
|
if (crtc->funcs->page_flip_target)
|
|
|
|
ret = crtc->funcs->page_flip_target(crtc, fb, e,
|
|
|
|
page_flip->flags,
|
2017-03-23 05:50:50 +08:00
|
|
|
target_vblank,
|
|
|
|
&ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
else
|
2017-03-23 05:50:50 +08:00
|
|
|
ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags,
|
|
|
|
&ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (ret) {
|
|
|
|
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT)
|
|
|
|
drm_event_cancel_free(dev, &e->base);
|
|
|
|
/* Keep the old fb, don't unref it. */
|
|
|
|
crtc->primary->old_fb = NULL;
|
|
|
|
} else {
|
|
|
|
crtc->primary->fb = fb;
|
|
|
|
/* Unref only the old framebuffer. */
|
|
|
|
fb = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
2016-09-29 06:25:00 +08:00
|
|
|
if (fb)
|
2017-02-28 22:46:40 +08:00
|
|
|
drm_framebuffer_put(fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
if (crtc->primary->old_fb)
|
2017-02-28 22:46:40 +08:00
|
|
|
drm_framebuffer_put(crtc->primary->old_fb);
|
2016-09-21 16:59:24 +08:00
|
|
|
crtc->primary->old_fb = NULL;
|
2017-03-23 05:50:49 +08:00
|
|
|
|
|
|
|
if (ret == -EDEADLK) {
|
2017-09-12 21:37:48 +08:00
|
|
|
ret = drm_modeset_backoff(&ctx);
|
|
|
|
if (!ret)
|
|
|
|
goto retry;
|
2017-03-23 05:50:49 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
drm_modeset_drop_locks(&ctx);
|
|
|
|
drm_modeset_acquire_fini(&ctx);
|
2016-09-21 16:59:24 +08:00
|
|
|
|
2017-05-22 21:59:45 +08:00
|
|
|
if (ret && crtc->funcs->page_flip_target)
|
|
|
|
drm_crtc_vblank_put(crtc);
|
|
|
|
|
2016-09-21 16:59:24 +08:00
|
|
|
return ret;
|
|
|
|
}
|