freebsd-skq/sys/dev/drm2/drm_gem_names.h
Jean-Sébastien Pédron 73547eeae9 drm/i915: Add HW context support
This feature is required by Mesa 9.2+. Without this, a GL application
crashes with the following message:
    # glxinfo
    name of display: :0.0
    Gen6+ requires Kernel 3.6 or later.
    Assertion failed: (ctx->Version > 0), function handle_first_current,
      file ../../src/mesa/main/context.c, line 1498.
    Abort (core dumped)

Now, Mesa 10.2.4 and 10.3-rc3 works fine:
    # glxinfo
    name of display: :0
    display: :0  screen: 0
    direct rendering: Yes
    ...
    OpenGL renderer string: Mesa DRI Intel(R) 965GM
    OpenGL version string: 2.1 Mesa 10.2.4
    ...

The code was imported from Linux 3.8.13.

Reviewed by:	kib@
Tested by:	kwm@, danfe@, Henry Hu,
		Lundberg, Johannes <johannes@brilliantservice.co.jp>,
		Johannes Dieterich <dieterich.joh@gmail.com>,
		Lutz Bichler <lutz.bichler@gmail.com>,
MFC after:	3 days
Relnotes:	yes
2014-09-17 08:28:50 +00:00

66 lines
2.4 KiB
C

/*-
* Copyright (c) 2011 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Konstantin Belousov under sponsorship from
* the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef DRM_GEM_NAMES_H
#define DRM_GEM_NAMES_H
#include <sys/types.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/queue.h>
struct drm_gem_name {
uint32_t name;
void *ptr;
LIST_ENTRY(drm_gem_name) link;
};
struct drm_gem_names {
struct mtx lock;
LIST_HEAD(drm_gem_names_head, drm_gem_name) *names_hash;
u_long hash_mask;
struct unrhdr *unr;
};
void drm_gem_names_init(struct drm_gem_names *names);
void drm_gem_names_fini(struct drm_gem_names *names);
uint32_t drm_gem_find_name(struct drm_gem_names *names, void *ptr);
void *drm_gem_find_ptr(struct drm_gem_names *names, uint32_t name);
void *drm_gem_name_ref(struct drm_gem_names *names, uint32_t name,
void (*ref)(void *));
int drm_gem_name_create(struct drm_gem_names *names, void *obj, uint32_t *name);
void drm_gem_names_foreach(struct drm_gem_names *names,
int (*f)(uint32_t, void *, void *), void *arg);
void *drm_gem_names_remove(struct drm_gem_names *names, uint32_t name);
#endif