/* drm_drv.h -- Generic driver template -*- linux-c -*- * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com * * Copyright 1999, 2000 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 * Gareth Hughes * */ /* * To use this template, you must at least define the following (samples * given for the MGA driver): * * #define DRIVER_AUTHOR "VA Linux Systems, Inc." * * #define DRIVER_NAME "mga" * #define DRIVER_DESC "Matrox G200/G400" * #define DRIVER_DATE "20001127" * * #define DRIVER_MAJOR 2 * #define DRIVER_MINOR 0 * #define DRIVER_PATCHLEVEL 2 * * #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls ) * * #define DRM(x) mga_##x */ #ifndef __MUST_HAVE_AGP #define __MUST_HAVE_AGP 0 #endif #ifndef __HAVE_CTX_BITMAP #define __HAVE_CTX_BITMAP 0 #endif #ifndef __HAVE_IRQ #define __HAVE_IRQ 0 #endif #ifndef __HAVE_DMA_QUEUE #define __HAVE_DMA_QUEUE 0 #endif #ifndef __HAVE_DMA_SCHEDULE #define __HAVE_DMA_SCHEDULE 0 #endif #ifndef __HAVE_DMA_QUIESCENT #define __HAVE_DMA_QUIESCENT 0 #endif #ifndef __HAVE_RELEASE #define __HAVE_RELEASE 0 #endif #ifndef __HAVE_COUNTERS #define __HAVE_COUNTERS 0 #endif #ifndef __HAVE_SG #define __HAVE_SG 0 #endif #ifndef DRIVER_IOCTLS #define DRIVER_IOCTLS #endif #ifndef DRIVER_FOPS #endif #if 1 && DRM_DEBUG_CODE int DRM(flags) = DRM_FLAG_DEBUG; #else int DRM(flags) = 0; #endif static int DRM(init)(device_t nbdev); static void DRM(cleanup)(drm_device_t *dev); #ifdef __FreeBSD__ #define DRIVER_SOFTC(unit) \ ((drm_device_t *) devclass_get_softc(DRM(devclass), unit)) #if __REALLY_HAVE_AGP MODULE_DEPEND(DRIVER_NAME, agp, 1, 1, 1); #endif #endif /* __FreeBSD__ */ #ifdef __NetBSD__ #define DRIVER_SOFTC(unit) \ ((drm_device_t *) device_lookup(&DRM(cd), unit)) #endif /* __NetBSD__ */ static drm_ioctl_desc_t DRM(ioctls)[] = { [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 }, #if __HAVE_IRQ [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_by_busid), 0, 1 }, #endif [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { DRM(setversion), 0, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(noop), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { DRM(noop), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { DRM(authmagic), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { DRM(addmap), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { DRM(rmmap), 1, 0 }, #if __HAVE_CTX_BITMAP [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 }, #endif [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { DRM(addctx), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { DRM(rmctx), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { DRM(modctx), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { DRM(getctx), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { DRM(switchctx), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { DRM(newctx), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { DRM(resctx), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { DRM(adddraw), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { DRM(rmdraw), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { DRM(lock), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { DRM(unlock), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { DRM(noop), 1, 0 }, #if __HAVE_DMA [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { DRM(addbufs), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { DRM(markbufs), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 }, /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */ #endif #if __HAVE_IRQ || __HAVE_DMA [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 }, #endif #if __REALLY_HAVE_AGP [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { DRM(agp_acquire), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { DRM(agp_release), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { DRM(agp_enable), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { DRM(agp_info), 1, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { DRM(agp_alloc), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { DRM(agp_free), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { DRM(agp_bind), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { DRM(agp_unbind), 1, 1 }, #endif #if __HAVE_SG [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { DRM(sg_alloc), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { DRM(sg_free), 1, 1 }, #endif #if __HAVE_VBL_IRQ [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { DRM(wait_vblank), 0, 0 }, #endif DRIVER_IOCTLS }; #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) ) const char *DRM(find_description)(int vendor, int device); #ifdef __FreeBSD__ static struct cdevsw DRM(cdevsw) = { #if __FreeBSD_version >= 502103 .d_version = D_VERSION, #endif .d_open = DRM( open ), .d_close = DRM( close ), .d_read = DRM( read ), .d_ioctl = DRM( ioctl ), .d_poll = DRM( poll ), .d_mmap = DRM( mmap ), .d_name = DRIVER_NAME, #if __FreeBSD_version >= 502103 .d_flags = D_TRACKCLOSE | D_NEEDGIANT, #else .d_maj = 145, .d_flags = D_TRACKCLOSE, #endif #if __FreeBSD_version < 500000 .d_bmaj = -1 #endif }; #include "drm_pciids.h" static drm_pci_id_list_t DRM(pciidlist)[] = { DRM(PCI_IDS) }; static int DRM(probe)(device_t dev) { const char *s = NULL; int pciid, vendor, device; /* XXX: Cope with agp bridge device? */ if (!strcmp(device_get_name(dev), "drmsub")) pciid = pci_get_devid(device_get_parent(dev)); else pciid = pci_get_devid(dev); vendor = (pciid & 0x0000ffff); device = (pciid & 0xffff0000) >> 16; s = DRM(find_description)(vendor, device); if (s != NULL) { device_set_desc(dev, s); return 0; } return ENXIO; } static int DRM(attach)(device_t dev) { return DRM(init)(dev); } static int DRM(detach)(device_t dev) { DRM(cleanup)(device_get_softc(dev)); return 0; } static device_method_t DRM(methods)[] = { /* Device interface */ DEVMETHOD(device_probe, DRM(probe)), DEVMETHOD(device_attach, DRM(attach)), DEVMETHOD(device_detach, DRM(detach)), { 0, 0 } }; #ifndef DRM_DEV_NAME #define DRM_DEV_NAME "drm" #endif static driver_t DRM(driver) = { DRM_DEV_NAME, DRM(methods), sizeof(drm_device_t), }; static devclass_t DRM(devclass); #elif defined(__NetBSD__) static struct cdevsw DRM(cdevsw) = { DRM(open), DRM(close), DRM(read), nowrite, DRM(ioctl), nostop, notty, DRM(poll), DRM(mmap), nokqfilter, D_TTY }; int DRM(refcnt) = 0; #if __NetBSD_Version__ >= 106080000 MOD_DEV( DRIVER_NAME, DRIVER_NAME, NULL, -1, &DRM(cdevsw), CDEV_MAJOR); #else MOD_DEV( DRIVER_NAME, LM_DT_CHAR, CDEV_MAJOR, &DRM(cdevsw) ); #endif int DRM(lkmentry)(struct lkm_table *lkmtp, int cmd, int ver); static int DRM(lkmhandle)(struct lkm_table *lkmtp, int cmd); int DRM(modprobe)(); int DRM(probe)(struct pci_attach_args *pa); void DRM(attach)(struct pci_attach_args *pa, dev_t kdev); int DRM(lkmentry)(struct lkm_table *lkmtp, int cmd, int ver) { DISPATCH(lkmtp, cmd, ver, DRM(lkmhandle), DRM(lkmhandle), DRM(lkmhandle)); } static int DRM(lkmhandle)(struct lkm_table *lkmtp, int cmd) { int j, error = 0; #if defined(__NetBSD__) && (__NetBSD_Version__ > 106080000) struct lkm_dev *args = lkmtp->private.lkm_dev; #endif switch(cmd) { case LKM_E_LOAD: if (lkmexists(lkmtp)) return EEXIST; if(DRM(modprobe)()) return 0; return 1; case LKM_E_UNLOAD: if (DRM(refcnt) > 0) return (EBUSY); break; case LKM_E_STAT: break; default: error = EIO; break; } return error; } int DRM(modprobe)() { struct pci_attach_args pa; int error = 0; if((error = pci_find_device(&pa, DRM(probe))) != 0) DRM(attach)(&pa, 0); return error; } int DRM(probe)(struct pci_attach_args *pa) { const char *desc; desc = DRM(find_description)(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id)); if (desc != NULL) { return 1; } return 0; } void DRM(attach)(struct pci_attach_args *pa, dev_t kdev) { int i; drm_device_t *dev; config_makeroom(kdev, &DRM(cd)); DRM(cd).cd_devs[(kdev)] = DRM(alloc)(sizeof(drm_device_t), DRM_MEM_DRIVER); dev = DRIVER_SOFTC(kdev); memset(dev, 0, sizeof(drm_device_t)); memcpy(&dev->pa, pa, sizeof(dev->pa)); DRM_INFO("%s", DRM(find_description)(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id))); DRM(init)(dev); } int DRM(detach)(struct device *self, int flags) { DRM(cleanup)((drm_device_t *)self); return 0; } int DRM(activate)(struct device *self, enum devact act) { switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); break; case DVACT_DEACTIVATE: /* FIXME */ break; } return (0); } #endif /* __NetBSD__ */ const char *DRM(find_description)(int vendor, int device) { int i = 0; for (i = 0; DRM(pciidlist)[i].vendor != 0; i++) { if ((DRM(pciidlist)[i].vendor == vendor) && (DRM(pciidlist)[i].device == device)) { return DRM(pciidlist)[i].name; } } return NULL; } /* Initialize the DRM on first open. */ static int DRM(setup)( drm_device_t *dev ) { int i; DRM_SPINLOCK_ASSERT(&dev->dev_lock); if (dev->fn_tbl.presetup) dev->fn_tbl.presetup(dev); dev->buf_use = 0; #if __HAVE_DMA i = DRM(dma_setup)( dev ); if ( i != 0 ) return i; #endif dev->counters = 6 + __HAVE_COUNTERS; dev->types[0] = _DRM_STAT_LOCK; dev->types[1] = _DRM_STAT_OPENS; dev->types[2] = _DRM_STAT_CLOSES; dev->types[3] = _DRM_STAT_IOCTLS; dev->types[4] = _DRM_STAT_LOCKS; dev->types[5] = _DRM_STAT_UNLOCKS; #ifdef __HAVE_COUNTER6 dev->types[6] = __HAVE_COUNTER6; #endif #ifdef __HAVE_COUNTER7 dev->types[7] = __HAVE_COUNTER7; #endif #ifdef __HAVE_COUNTER8 dev->types[8] = __HAVE_COUNTER8; #endif #ifdef __HAVE_COUNTER9 dev->types[9] = __HAVE_COUNTER9; #endif #ifdef __HAVE_COUNTER10 dev->types[10] = __HAVE_COUNTER10; #endif #ifdef __HAVE_COUNTER11 dev->types[11] = __HAVE_COUNTER11; #endif #ifdef __HAVE_COUNTER12 dev->types[12] = __HAVE_COUNTER12; #endif #ifdef __HAVE_COUNTER13 dev->types[13] = __HAVE_COUNTER13; #endif #ifdef __HAVE_COUNTER14 dev->types[14] = __HAVE_COUNTER14; #endif #ifdef __HAVE_COUNTER15 dev->types[14] = __HAVE_COUNTER14; #endif for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ ) atomic_set( &dev->counts[i], 0 ); for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) { dev->magiclist[i].head = NULL; dev->magiclist[i].tail = NULL; } dev->lock.hw_lock = NULL; dev->lock.lock_queue = 0; dev->irq_enabled = 0; dev->context_flag = 0; dev->last_context = 0; dev->if_version = 0; #ifdef __FreeBSD__ dev->buf_sigio = NULL; #elif defined(__NetBSD__) dev->buf_pgid = 0; #endif DRM_DEBUG( "\n" ); if (dev->fn_tbl.postsetup) dev->fn_tbl.postsetup(dev); return 0; } /* Free resources associated with the DRM on the last close. */ static int DRM(takedown)( drm_device_t *dev ) { drm_magic_entry_t *pt, *next; drm_local_map_t *map; drm_map_list_entry_t *list; int i; DRM_SPINLOCK_ASSERT(&dev->dev_lock); DRM_DEBUG( "\n" ); if (dev->fn_tbl.pretakedown) dev->fn_tbl.pretakedown(dev); #if __HAVE_IRQ if (dev->irq_enabled) DRM(irq_uninstall)( dev ); #endif if ( dev->unique ) { DRM(free)( dev->unique, strlen( dev->unique ) + 1, DRM_MEM_DRIVER ); dev->unique = NULL; dev->unique_len = 0; } /* Clear pid list */ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) { for ( pt = dev->magiclist[i].head ; pt ; pt = next ) { next = pt->next; DRM(free)( pt, sizeof(*pt), DRM_MEM_MAGIC ); } dev->magiclist[i].head = dev->magiclist[i].tail = NULL; } #if __REALLY_HAVE_AGP /* Clear AGP information */ if ( dev->agp ) { drm_agp_mem_t *entry; drm_agp_mem_t *nexte; /* Remove AGP resources, but leave dev->agp intact until DRM(cleanup) is called. */ for ( entry = dev->agp->memory ; entry ; entry = nexte ) { nexte = entry->next; if ( entry->bound ) DRM(unbind_agp)( entry->handle ); DRM(free_agp)( entry->handle, entry->pages ); DRM(free)( entry, sizeof(*entry), DRM_MEM_AGPLISTS ); } dev->agp->memory = NULL; if ( dev->agp->acquired ) DRM(agp_do_release)(); dev->agp->acquired = 0; dev->agp->enabled = 0; } #endif #if __REALLY_HAVE_SG if (dev->sg != NULL) { DRM(sg_cleanup)(dev->sg); dev->sg = NULL; } #endif if (dev->maplist != NULL) { while ((list=TAILQ_FIRST(dev->maplist))) { map = list->map; switch ( map->type ) { case _DRM_REGISTERS: DRM(ioremapfree)(map); /* FALLTHROUGH */ case _DRM_FRAME_BUFFER: #if __REALLY_HAVE_MTRR if (map->mtrr) { int __unused retcode; retcode = DRM(mtrr_del)(map->offset, map->size, DRM_MTRR_WC); DRM_DEBUG("mtrr_del = %d", retcode); } #endif break; case _DRM_SHM: DRM(free)(map->handle, map->size, DRM_MEM_SAREA); break; case _DRM_AGP: case _DRM_SCATTER_GATHER: /* Do nothing here, because this is all * handled in the AGP/GART/SG functions. */ break; } TAILQ_REMOVE(dev->maplist, list, link); DRM(free)(list, sizeof(*list), DRM_MEM_MAPS); DRM(free)(map, sizeof(*map), DRM_MEM_MAPS); } } #if __HAVE_DMA DRM(dma_takedown)( dev ); #endif if ( dev->lock.hw_lock ) { dev->lock.hw_lock = NULL; /* SHM removed */ dev->lock.filp = NULL; DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); } return 0; } /* linux: drm_init is called via init_module at module load time, or via * linux/init/main.c (this is not currently supported). * bsd: drm_init is called via the attach function per device. */ static int DRM(init)( device_t nbdev ) { int unit; #ifdef __FreeBSD__ drm_device_t *dev; #elif defined(__NetBSD__) drm_device_t *dev = nbdev; #endif #if __HAVE_CTX_BITMAP int retcode; #endif DRM_DEBUG( "\n" ); #ifdef __FreeBSD__ unit = device_get_unit(nbdev); dev = device_get_softc(nbdev); memset( (void *)dev, 0, sizeof(*dev) ); if (!strcmp(device_get_name(nbdev), "drmsub")) dev->device = device_get_parent(nbdev); else dev->device = nbdev; /* dev_priv_size can be changed by a driver in driver_register_fns */ dev->dev_priv_size = sizeof(u32); DRM(driver_register_fns)(dev); if (dev->fn_tbl.preinit) dev->fn_tbl.preinit(dev, 0); dev->devnode = make_dev( &DRM(cdevsw), unit, DRM_DEV_UID, DRM_DEV_GID, DRM_DEV_MODE, "dri/card%d", unit ); #if __FreeBSD_version >= 500000 mtx_init(&dev->dev_lock, "drm device", NULL, MTX_DEF); #endif #elif defined(__NetBSD__) unit = minor(dev->device.dv_unit); /* dev_priv_size can be changed by a driver in driver_register_fns */ dev->dev_priv_size = sizeof(u32); DRM(driver_register_fns)(dev); if (dev->fn_tbl.preinit) dev->fn_tbl.preinit(dev, 0); #endif dev->irq = pci_get_irq(dev->device); /* XXX Fix domain number (alpha hoses) */ dev->pci_domain = 0; dev->pci_bus = pci_get_bus(dev->device); dev->pci_slot = pci_get_slot(dev->device); dev->pci_func = pci_get_function(dev->device); dev->maplist = DRM(calloc)(1, sizeof(*dev->maplist), DRM_MEM_MAPS); if (dev->maplist == NULL) { retcode = ENOMEM; goto error; } TAILQ_INIT(dev->maplist); dev->name = DRIVER_NAME; DRM(mem_init)(); DRM(sysctl_init)(dev); TAILQ_INIT(&dev->files); #if __REALLY_HAVE_AGP dev->agp = DRM(agp_init)(); #if __MUST_HAVE_AGP if ( dev->agp == NULL ) { DRM_ERROR( "Cannot initialize the agpgart module.\n" ); retcode = DRM_ERR(ENOMEM); goto error; } #endif /* __MUST_HAVE_AGP */ #if __REALLY_HAVE_MTRR if (dev->agp) { if (DRM(mtrr_add)(dev->agp->info.ai_aperture_base, dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) dev->agp->mtrr = 1; } #endif /* __REALLY_HAVE_MTRR */ #endif /* __REALLY_HAVE_AGP */ #if __HAVE_CTX_BITMAP retcode = DRM(ctxbitmap_init)( dev ); if (retcode != 0) { DRM_ERROR( "Cannot allocate memory for context bitmap.\n" ); goto error; } #endif DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n", DRIVER_NAME, DRIVER_MAJOR, DRIVER_MINOR, DRIVER_PATCHLEVEL, DRIVER_DATE, unit ); if (dev->fn_tbl.postinit) dev->fn_tbl.postinit(dev, 0); return 0; error: DRM(sysctl_cleanup)(dev); DRM_LOCK(); DRM(takedown)(dev); DRM_UNLOCK(); #ifdef __FreeBSD__ destroy_dev(dev->devnode); #if __FreeBSD_version >= 500000 mtx_destroy(&dev->dev_lock); #endif #endif DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS); return retcode; } /* linux: drm_cleanup is called via cleanup_module at module unload time. * bsd: drm_cleanup is called per device at module unload time. * FIXME: NetBSD */ static void DRM(cleanup)(drm_device_t *dev) { DRM_DEBUG( "\n" ); DRM(sysctl_cleanup)( dev ); #ifdef __FreeBSD__ destroy_dev(dev->devnode); #endif #if __HAVE_CTX_BITMAP DRM(ctxbitmap_cleanup)( dev ); #endif #if __REALLY_HAVE_AGP && __REALLY_HAVE_MTRR if (dev->agp && dev->agp->mtrr) { int __unused retcode; retcode = DRM(mtrr_del)(dev->agp->info.ai_aperture_base, dev->agp->info.ai_aperture_size, DRM_MTRR_WC); DRM_DEBUG("mtrr_del = %d", retcode); } #endif DRM_LOCK(); DRM(takedown)( dev ); DRM_UNLOCK(); #if __REALLY_HAVE_AGP if ( dev->agp ) { DRM(agp_uninit)(); DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS ); dev->agp = NULL; } #endif if (dev->fn_tbl.postcleanup) dev->fn_tbl.postcleanup(dev); DRM(mem_uninit)(); #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 mtx_destroy(&dev->dev_lock); #endif DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS); } int DRM(version)( DRM_IOCTL_ARGS ) { drm_version_t version; int len; DRM_COPY_FROM_USER_IOCTL( version, (drm_version_t *)data, sizeof(version) ); #define DRM_COPY( name, value ) \ len = strlen( value ); \ if ( len > name##_len ) len = name##_len; \ name##_len = strlen( value ); \ if ( len && name ) { \ if ( DRM_COPY_TO_USER( name, value, len ) ) \ return DRM_ERR(EFAULT); \ } version.version_major = DRIVER_MAJOR; version.version_minor = DRIVER_MINOR; version.version_patchlevel = DRIVER_PATCHLEVEL; DRM_COPY( version.name, DRIVER_NAME ); DRM_COPY( version.date, DRIVER_DATE ); DRM_COPY( version.desc, DRIVER_DESC ); DRM_COPY_TO_USER_IOCTL( (drm_version_t *)data, version, sizeof(version) ); return 0; } int DRM(open)(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) { drm_device_t *dev = NULL; int retcode = 0; dev = DRIVER_SOFTC(minor(kdev)); DRM_DEBUG( "open_count = %d\n", dev->open_count ); retcode = DRM(open_helper)(kdev, flags, fmt, p, dev); if ( !retcode ) { atomic_inc( &dev->counts[_DRM_STAT_OPENS] ); DRM_LOCK(); #ifdef __FreeBSD__ device_busy(dev->device); #endif if ( !dev->open_count++ ) retcode = DRM(setup)( dev ); DRM_UNLOCK(); } return retcode; } int DRM(close)(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) { drm_file_t *priv; DRM_DEVICE; int retcode = 0; DRMFILE filp = (void *)(uintptr_t)(DRM_CURRENTPID); DRM_DEBUG( "open_count = %d\n", dev->open_count ); DRM_LOCK(); priv = DRM(find_file_by_proc)(dev, p); if (!priv) { DRM_UNLOCK(); DRM_ERROR("can't find authenticator\n"); return EINVAL; } if (dev->fn_tbl.prerelease) dev->fn_tbl.prerelease(dev, filp); /* ======================================================== * Begin inline drm_release */ #ifdef __FreeBSD__ DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", DRM_CURRENTPID, (long)dev->device, dev->open_count ); #elif defined(__NetBSD__) DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", DRM_CURRENTPID, (long)&dev->device, dev->open_count); #endif if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) && dev->lock.filp == filp) { DRM_DEBUG("Process %d dead, freeing lock for context %d\n", DRM_CURRENTPID, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); #if __HAVE_RELEASE DRIVER_RELEASE(); #endif DRM(lock_free)(dev, &dev->lock.hw_lock->lock, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); /* FIXME: may require heavy-handed reset of hardware at this point, possibly processed via a callback to the X server. */ } #if __HAVE_RELEASE else if ( dev->lock.hw_lock ) { /* The lock is required to reclaim buffers */ for (;;) { if ( !dev->lock.hw_lock ) { /* Device has been unregistered */ retcode = DRM_ERR(EINTR); break; } if ( DRM(lock_take)( &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT ) ) { dev->lock.pid = DRM_CURRENTPID; dev->lock.lock_time = jiffies; atomic_inc( &dev->counts[_DRM_STAT_LOCKS] ); break; /* Got lock */ } /* Contention */ #if defined(__FreeBSD__) && __FreeBSD_version > 500000 retcode = msleep((void *)&dev->lock.lock_queue, dev->dev_lock, PZERO | PCATCH, "drmlk2", 0); #else retcode = tsleep((void *)&dev->lock.lock_queue, PZERO | PCATCH, "drmlk2", 0); #endif if (retcode) break; } if (retcode == 0) { DRIVER_RELEASE(); DRM(lock_free)( dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT ); } } #elif __HAVE_DMA DRM(reclaim_buffers)( dev, (void *)(uintptr_t)priv->pid ); #endif #if defined (__FreeBSD__) && (__FreeBSD_version >= 500000) funsetown(&dev->buf_sigio); #elif defined(__FreeBSD__) funsetown(dev->buf_sigio); #elif defined(__NetBSD__) dev->buf_pgid = 0; #endif /* __NetBSD__ */ if (--priv->refs == 0) { TAILQ_REMOVE(&dev->files, priv, link); DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES ); } /* ======================================================== * End inline drm_release */ atomic_inc( &dev->counts[_DRM_STAT_CLOSES] ); #ifdef __FreeBSD__ device_unbusy(dev->device); #endif if (--dev->open_count == 0) { retcode = DRM(takedown)(dev); } DRM_UNLOCK(); return retcode; } /* DRM(ioctl) is called whenever a process performs an ioctl on /dev/drm. */ int DRM(ioctl)(struct cdev *kdev, u_long cmd, caddr_t data, int flags, DRM_STRUCTPROC *p) { DRM_DEVICE; int retcode = 0; drm_ioctl_desc_t *ioctl; int (*func)(DRM_IOCTL_ARGS); int nr = DRM_IOCTL_NR(cmd); drm_file_t *priv; DRM_GET_PRIV_WITH_RETURN(priv, (DRMFILE)(uintptr_t)DRM_CURRENTPID); atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] ); ++priv->ioctl_count; #ifdef __FreeBSD__ DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", DRM_CURRENTPID, cmd, nr, (long)dev->device, priv->authenticated ); #elif defined(__NetBSD__) DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", DRM_CURRENTPID, cmd, nr, (long)&dev->device, priv->authenticated ); #endif switch (cmd) { case FIONBIO: case FIOASYNC: return 0; #ifdef __FreeBSD__ case FIOSETOWN: return fsetown(*(int *)data, &dev->buf_sigio); case FIOGETOWN: #if (__FreeBSD_version >= 500000) *(int *) data = fgetown(&dev->buf_sigio); #else *(int *) data = fgetown(dev->buf_sigio); #endif return 0; #endif /* __FreeBSD__ */ #ifdef __NetBSD__ case TIOCSPGRP: dev->buf_pgid = *(int *)data; return 0; case TIOCGPGRP: *(int *)data = dev->buf_pgid; return 0; #endif /* __NetBSD__ */ } if (nr >= DRIVER_IOCTL_COUNT || IOCGROUP(cmd) != DRM_IOCTL_BASE) return EINVAL; ioctl = &DRM(ioctls)[nr]; func = ioctl->func; if (func == NULL) { DRM_DEBUG( "no function\n" ); return EINVAL; } if ((ioctl->root_only && DRM_SUSER(p)) || (ioctl->auth_needed && !priv->authenticated)) return EACCES; retcode = func(kdev, cmd, data, flags, p, (void *)(uintptr_t)DRM_CURRENTPID); return DRM_ERR(retcode); } int DRM(lock)( DRM_IOCTL_ARGS ) { DRM_DEVICE; drm_lock_t lock; int ret = 0; DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) ); if ( lock.context == DRM_KERNEL_CONTEXT ) { DRM_ERROR( "Process %d using kernel context %d\n", DRM_CURRENTPID, lock.context ); return DRM_ERR(EINVAL); } DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", lock.context, DRM_CURRENTPID, dev->lock.hw_lock->lock, lock.flags ); #if __HAVE_DMA_QUEUE if ( lock.context < 0 ) return DRM_ERR(EINVAL); #endif DRM_LOCK(); for (;;) { if (DRM(lock_take)(&dev->lock.hw_lock->lock, lock.context)) { dev->lock.filp = (void *)(uintptr_t)DRM_CURRENTPID; dev->lock.lock_time = jiffies; atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); break; /* Got lock */ } /* Contention */ #if defined(__FreeBSD__) && __FreeBSD_version > 500000 ret = msleep((void *)&dev->lock.lock_queue, &dev->dev_lock, PZERO | PCATCH, "drmlk2", 0); #else ret = tsleep((void *)&dev->lock.lock_queue, PZERO | PCATCH, "drmlk2", 0); #endif if (ret != 0) break; } DRM_UNLOCK(); DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" ); if (ret != 0) return ret; /* XXX: Add signal blocking here */ #if __HAVE_DMA_QUIESCENT if (lock.flags & _DRM_LOCK_QUIESCENT) { DRIVER_DMA_QUIESCENT(); } #endif return 0; } int DRM(unlock)( DRM_IOCTL_ARGS ) { DRM_DEVICE; drm_lock_t lock; DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) ) ; if ( lock.context == DRM_KERNEL_CONTEXT ) { DRM_ERROR( "Process %d using kernel context %d\n", DRM_CURRENTPID, lock.context ); return DRM_ERR(EINVAL); } atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] ); DRM_LOCK(); DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT ); #if __HAVE_DMA_SCHEDULE DRM(dma_schedule)( dev, 1 ); #endif if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT ) ) { DRM_ERROR( "\n" ); } DRM_UNLOCK(); return 0; } #if DRM_LINUX #include MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); #define LINUX_IOCTL_DRM_MIN 0x6400 #define LINUX_IOCTL_DRM_MAX 0x64ff static linux_ioctl_function_t DRM(linux_ioctl); static struct linux_ioctl_handler DRM(handler) = {DRM(linux_ioctl), LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; SYSINIT(DRM(register), SI_SUB_KLD, SI_ORDER_MIDDLE, linux_ioctl_register_handler, &DRM(handler)); SYSUNINIT(DRM(unregister), SI_SUB_KLD, SI_ORDER_MIDDLE, linux_ioctl_unregister_handler, &DRM(handler)); /* The bits for in/out are switched on Linux */ #define LINUX_IOC_IN IOC_OUT #define LINUX_IOC_OUT IOC_IN static int DRM(linux_ioctl)(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) { int error; int cmd = args->cmd; args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); if (cmd & LINUX_IOC_IN) args->cmd |= IOC_IN; if (cmd & LINUX_IOC_OUT) args->cmd |= IOC_OUT; error = ioctl(p, (struct ioctl_args *)args); return error; } #endif /* DRM_LINUX */