| /* |
| * 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. |
| */ |
| |
| /* |
| * 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/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 <sys/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_ */ |