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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Common misc module interfaces of DRM under Solaris
*/
/*
* I915 DRM Driver for Solaris
*
* This driver provides the hardware 3D acceleration support for Intel
* integrated video devices (e.g. i8xx/i915/i945 series chipsets), under the
* DRI (Direct Rendering Infrastructure). DRM (Direct Rendering Manager) here
* means the kernel device driver in DRI.
*
* I915 driver is a device dependent driver only, it depends on a misc module
* named drm for generic DRM operations.
*
* This driver also calls into gfx and agpmaster misc modules respectively for
* generic graphics operations and AGP master device support.
*/
#ifndef _SYS_DRM_SUNMOD_H_
#define _SYS_DRM_SUNMOD_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/conf.h>
#include <sys/kmem.h>
#include <sys/visual_io.h>
#include <sys/font.h>
#include <sys/fbio.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/open.h>
#include <sys/modctl.h>
#include <sys/vgareg.h>
#include <sys/vgasubr.h>
#include <sys/pci.h>
#include <sys/kd.h>
#include <sys/ddi_impldefs.h>
#include <sys/sunldi.h>
#include <sys/mkdev.h>
#include <gfx_private.h>
#include <sys/agpgart.h>
#include <sys/agp/agpdefs.h>
#include <sys/agp/agpmaster_io.h>
#include "drmP.h"
#include <sys/modctl.h>
/*
* dev_t of this driver looks consists of:
*
* major number with NBITSMAJOR bits
* instance node number with NBITSINST bits
* minor node number with NBITSMINOR - NBITSINST bits
*
* Each instance has at most 2^(NBITSMINOR - NBITSINST) minor nodes, the first
* three are:
* 0: gfx<instance number>, graphics common node
* 1: agpmaster<instance number>, agpmaster node
* 2: drm<instance number>, drm node
*/
#define GFX_MINOR 0
#define AGPMASTER_MINOR 1
#define DRM_MINOR 2
#define DRM_MIN_CLONEMINOR 3
/*
* Number of bits occupied by instance number in dev_t, currently maximum 8
* instances are supported.
*/
#define NBITSINST 3
/* Number of bits occupied in dev_t by minor node */
#define NBITSMNODE (18 - NBITSINST)
/*
* DRM use a "cloning" minor node mechanism to release lock on every close(2),
* thus there will be a minor node for every open(2) operation. Here we give
* the maximum DRM cloning minor node number.
*/
#define MAX_CLONE_MINOR (1 << (NBITSMNODE) - 1)
#define DEV2MINOR(dev) (getminor(dev) & ((1 << (NBITSMNODE)) - 1))
#define DEV2INST(dev) (getminor(dev) >> NBITSMNODE)
#define INST2NODE0(inst) ((inst) << NBITSMNODE)
#define INST2NODE1(inst) (((inst) << NBITSMNODE) + AGPMASTER_MINOR)
#define INST2NODE2(inst) (((inst) << NBITSMNODE) + DRM_MINOR)
/* graphics name for the common graphics minor node */
#define GFX_NAME "gfx"
/*
* softstate for DRM module
*/
typedef struct drm_instance_state {
kmutex_t mis_lock;
kmutex_t dis_ctxlock;
major_t mis_major;
dev_info_t *mis_dip;
drm_device_t *mis_devp;
ddi_acc_handle_t mis_cfg_hdl;
agp_master_softc_t *mis_agpm; /* agpmaster softstate ptr */
gfxp_vgatext_softc_ptr_t mis_gfxp; /* gfx softstate */
} drm_inst_state_t;
struct drm_inst_state_list {
drm_inst_state_t disl_state;
struct drm_inst_state_list *disl_next;
};
typedef struct drm_inst_state_list drm_inst_list_t;
/* Identifier of this driver */
static struct vis_identifier text_ident = { "SUNWdrm" };
static int drm_sun_open(dev_t *, int, int, cred_t *);
static int drm_sun_close(dev_t, int, int, cred_t *);
static int drm_sun_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
static int drm_sun_devmap(dev_t, devmap_cookie_t,
offset_t, size_t, size_t *, uint_t);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DRM_SUNMOD_H_ */
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