mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
e27f871969
works with new generations of GPUs (IronLake, SandyBridge and supposedly IvyBridge). The driver is not connected to the build yet. Sponsored by: The FreeBSD Foundation MFC after: 1 week
174 lines
4.9 KiB
C
174 lines
4.9 KiB
C
/*-
|
|
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
|
|
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Rickard E. (Rik) Faith <faith@valinux.com>
|
|
* Gareth Hughes <gareth@valinux.com>
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/** @file drm_drawable.c
|
|
* This file implements ioctls to store information along with DRM drawables,
|
|
* such as the current set of cliprects for vblank-synced buffer swaps.
|
|
*/
|
|
|
|
#include <dev/drm2/drmP.h>
|
|
|
|
struct bsd_drm_drawable_info {
|
|
struct drm_drawable_info info;
|
|
int handle;
|
|
RB_ENTRY(bsd_drm_drawable_info) tree;
|
|
};
|
|
|
|
static int
|
|
drm_drawable_compare(struct bsd_drm_drawable_info *a,
|
|
struct bsd_drm_drawable_info *b)
|
|
{
|
|
if (a->handle > b->handle)
|
|
return 1;
|
|
if (a->handle < b->handle)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
RB_GENERATE_STATIC(drawable_tree, bsd_drm_drawable_info, tree,
|
|
drm_drawable_compare);
|
|
|
|
struct drm_drawable_info *
|
|
drm_get_drawable_info(struct drm_device *dev, int handle)
|
|
{
|
|
struct bsd_drm_drawable_info find, *result;
|
|
|
|
find.handle = handle;
|
|
result = RB_FIND(drawable_tree, &dev->drw_head, &find);
|
|
|
|
return &result->info;
|
|
}
|
|
|
|
int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
|
|
{
|
|
struct drm_draw *draw = data;
|
|
struct bsd_drm_drawable_info *info;
|
|
|
|
info = malloc(sizeof(struct bsd_drm_drawable_info), DRM_MEM_DRAWABLE,
|
|
M_NOWAIT | M_ZERO);
|
|
if (info == NULL)
|
|
return ENOMEM;
|
|
|
|
info->handle = alloc_unr(dev->drw_unrhdr);
|
|
DRM_SPINLOCK(&dev->drw_lock);
|
|
RB_INSERT(drawable_tree, &dev->drw_head, info);
|
|
draw->handle = info->handle;
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
|
|
DRM_DEBUG("%d\n", draw->handle);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
|
|
{
|
|
struct drm_draw *draw = (struct drm_draw *)data;
|
|
struct drm_drawable_info *info;
|
|
|
|
DRM_SPINLOCK(&dev->drw_lock);
|
|
info = drm_get_drawable_info(dev, draw->handle);
|
|
if (info != NULL) {
|
|
RB_REMOVE(drawable_tree, &dev->drw_head,
|
|
(struct bsd_drm_drawable_info *)info);
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
free_unr(dev->drw_unrhdr, draw->handle);
|
|
free(info->rects, DRM_MEM_DRAWABLE);
|
|
free(info, DRM_MEM_DRAWABLE);
|
|
return 0;
|
|
} else {
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
int drm_update_draw(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_drawable_info *info;
|
|
struct drm_update_draw *update = (struct drm_update_draw *)data;
|
|
int ret;
|
|
|
|
info = drm_get_drawable_info(dev, update->handle);
|
|
if (info == NULL)
|
|
return EINVAL;
|
|
|
|
switch (update->type) {
|
|
case DRM_DRAWABLE_CLIPRECTS:
|
|
DRM_SPINLOCK(&dev->drw_lock);
|
|
if (update->num != info->num_rects) {
|
|
free(info->rects, DRM_MEM_DRAWABLE);
|
|
info->rects = NULL;
|
|
info->num_rects = 0;
|
|
}
|
|
if (update->num == 0) {
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
return 0;
|
|
}
|
|
if (info->rects == NULL) {
|
|
info->rects = malloc(sizeof(*info->rects) *
|
|
update->num, DRM_MEM_DRAWABLE, M_NOWAIT);
|
|
if (info->rects == NULL) {
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
return ENOMEM;
|
|
}
|
|
info->num_rects = update->num;
|
|
}
|
|
/* For some reason the pointer arg is unsigned long long. */
|
|
ret = copyin((void *)(intptr_t)update->data, info->rects,
|
|
sizeof(*info->rects) * info->num_rects);
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
return ret;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
void drm_drawable_free_all(struct drm_device *dev)
|
|
{
|
|
struct bsd_drm_drawable_info *info, *next;
|
|
|
|
DRM_SPINLOCK(&dev->drw_lock);
|
|
for (info = RB_MIN(drawable_tree, &dev->drw_head);
|
|
info != NULL ; info = next) {
|
|
next = RB_NEXT(drawable_tree, &dev->drw_head, info);
|
|
RB_REMOVE(drawable_tree, &dev->drw_head,
|
|
(struct bsd_drm_drawable_info *)info);
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
free_unr(dev->drw_unrhdr, info->handle);
|
|
free(info->info.rects, DRM_MEM_DRAWABLE);
|
|
free(info, DRM_MEM_DRAWABLE);
|
|
DRM_SPINLOCK(&dev->drw_lock);
|
|
}
|
|
DRM_SPINUNLOCK(&dev->drw_lock);
|
|
}
|