diff options
Diffstat (limited to 'nx-X11/extras/drm/bsd-core/drm_drv.c')
| -rw-r--r-- | nx-X11/extras/drm/bsd-core/drm_drv.c | 932 |
1 files changed, 932 insertions, 0 deletions
diff --git a/nx-X11/extras/drm/bsd-core/drm_drv.c b/nx-X11/extras/drm/bsd-core/drm_drv.c new file mode 100644 index 000000000..6766195ba --- /dev/null +++ b/nx-X11/extras/drm/bsd-core/drm_drv.c @@ -0,0 +1,932 @@ +/* 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 <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include "drmP.h" +#include "drm.h" +#include "drm_sarea.h" + +int drm_debug_flag = 0; + +static int drm_load(drm_device_t *dev); +static void drm_unload(drm_device_t *dev); +static drm_pci_id_list_t *drm_find_description(int vendor, int device, + drm_pci_id_list_t *idlist); + +#ifdef __FreeBSD__ +#define DRIVER_SOFTC(unit) \ + ((drm_device_t *)devclass_get_softc(drm_devclass, unit)) + +MODULE_VERSION(drm, 1); +MODULE_DEPEND(drm, agp, 1, 1, 1); +MODULE_DEPEND(drm, pci, 1, 1, 1); +#if __FreeBSD_version > 502127 +MODULE_DEPEND(drm, mem, 1, 1, 1); +#endif +#endif /* __FreeBSD__ */ + +#if defined(__NetBSD__) || defined(__OpenBSD__) +#define DRIVER_SOFTC(unit) \ + ((drm_device_t *)device_lookup(&drm_cd, unit)) +#endif /* __NetBSD__ || __OpenBSD__ */ + +static drm_ioctl_desc_t drm_ioctls[256] = { + [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { drm_version, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY}, + [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { drm_getmap, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { drm_getclient, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { drm_getstats, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { drm_setversion, DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { drm_rmmap_ioctl, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { drm_getsareactx, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { drm_addctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { drm_getctx, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { drm_resctx, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { drm_lock, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { drm_unlock, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_noop, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { drm_addbufs_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { drm_markbufs, DRM_AUTH|DRM_MASTER }, + [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { drm_infobufs, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { drm_mapbufs, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { drm_freebufs, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { drm_dma, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { drm_agp_info_ioctl, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { drm_wait_vblank, 0 }, +}; + +#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 = "drm", +#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 +}; + +int drm_probe(device_t dev, drm_pci_id_list_t *idlist) +{ + drm_pci_id_list_t *id_entry; + int vendor, device; + + vendor = pci_get_vendor(dev); + device = pci_get_device(dev); + + id_entry = drm_find_description(vendor, device, idlist); + if (id_entry != NULL) { + device_set_desc(dev, id_entry->name); + return 0; + } + + return ENXIO; +} + +int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist) +{ + drm_device_t *dev; + drm_pci_id_list_t *id_entry; + int unit; + + unit = device_get_unit(nbdev); + dev = device_get_softc(nbdev); + + if (!strcmp(device_get_name(nbdev), "drmsub")) + dev->device = device_get_parent(nbdev); + else + dev->device = nbdev; + + 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 + + id_entry = drm_find_description(pci_get_vendor(nbdev), + pci_get_device(nbdev), idlist); + dev->id_entry = id_entry; + + return drm_load(dev); +} + +int drm_detach(device_t dev) +{ + drm_unload(device_get_softc(dev)); + return 0; +} + +#ifndef DRM_DEV_NAME +#define DRM_DEV_NAME "drm" +#endif + +devclass_t drm_devclass; + +#elif defined(__NetBSD__) || defined(__OpenBSD__) + +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 defined(__NetBSD__) && __NetBSD_Version__ >= 106080000 +MOD_DEV("drm", DRIVER_NAME, NULL, -1, &drm_cdevsw, CDEV_MAJOR); +#else +MOD_DEV("drm", 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(void); +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 error = 0; + + 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(void) +{ + struct pci_attach_args pa; + int error; + + error = pci_find_device(&pa, drm_probe, idlist); + if (error != 0) + drm_attach(&pa, 0); + + return error; +} + +int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t idlist) +{ + const char *desc; + drm_pci_id_list_t *id_entry; + + id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), + PCI_PRODUCT(pa->pa_id), idlist); + if (id_entry != NULL) { + return 1; + } + + return 0; +} + +void drm_attach(struct pci_attach_args *pa, dev_t kdev, + drm_pci_id_list_t *idlist) +{ + int i; + drm_device_t *dev; + drm_pci_id_list_t *id_entry; + + config_makeroom(kdev, &drm_cd); + drm_cd.cd_devs[(kdev)] = malloc(sizeof(drm_device_t), M_DRM, M_WAITOK); + dev = DRIVER_SOFTC(kdev); + + memset(dev, 0, sizeof(drm_device_t)); + memcpy(&dev->pa, pa, sizeof(dev->pa)); + + dev->irq = pa->pa_intrline; + dev->pci_domain = 0; + dev->pci_bus = pa->pa_bus; + dev->pci_slot = pa->pa_device; + dev->pci_func = pa->pa_function; + dev->dma_tag = pa->pa_dmat; + + id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), + PCI_PRODUCT(pa->pa_id), idlist); + dev->driver.pci_id_entry = id_entry; + + DRM_INFO("%s", id_entry->name); + drm_load(dev); +} + +int drm_detach(struct device *self, int flags) +{ + drm_unload((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__ || __OpenBSD__ */ + +drm_pci_id_list_t *drm_find_description(int vendor, int device, + drm_pci_id_list_t *idlist) +{ + int i = 0; + + for (i = 0; idlist[i].vendor != 0; i++) { + if ((idlist[i].vendor == vendor) && + (idlist[i].device == device)) { + return &idlist[i]; + } + } + return NULL; +} + +static int drm_firstopen(drm_device_t *dev) +{ + drm_local_map_t *map; + int i; + + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + + /* prebuild the SAREA */ + i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, + _DRM_CONTAINS_LOCK, &map); + if (i != 0) + return i; + + if (dev->driver.firstopen) + dev->driver.firstopen(dev); + + dev->buf_use = 0; + + if (dev->driver.use_dma) { + i = drm_dma_setup(dev); + if (i != 0) + return i; + } + + dev->counters = 6; + 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; + + 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.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__) || defined(__OpenBSD__) + dev->buf_pgid = 0; +#endif + + DRM_DEBUG( "\n" ); + + return 0; +} + +static int drm_lastclose(drm_device_t *dev) +{ + drm_magic_entry_t *pt, *next; + drm_local_map_t *map, *mapsave; + int i; + + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + + DRM_DEBUG( "\n" ); + + if (dev->driver.lastclose != NULL) + dev->driver.lastclose(dev); + + if (dev->irq_enabled) + drm_irq_uninstall(dev); + + if ( dev->unique ) { + free(dev->unique, M_DRM); + 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; + free(pt, M_DRM); + } + dev->magiclist[i].head = dev->magiclist[i].tail = NULL; + } + + /* 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_unload is called. + */ + for ( entry = dev->agp->memory ; entry ; entry = nexte ) { + nexte = entry->next; + if ( entry->bound ) + drm_agp_unbind_memory(entry->handle); + drm_agp_free_memory(entry->handle); + free(entry, M_DRM); + } + dev->agp->memory = NULL; + + if (dev->agp->acquired) + drm_agp_release(dev); + + dev->agp->acquired = 0; + dev->agp->enabled = 0; + } + if (dev->sg != NULL) { + drm_sg_cleanup(dev->sg); + dev->sg = NULL; + } + + TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { + drm_rmmap(dev, map); + } + + + drm_dma_takedown(dev); + 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; +} + +static int drm_load(drm_device_t *dev) +{ + int retcode; + + DRM_DEBUG( "\n" ); + + 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); + + TAILQ_INIT(&dev->maplist); + + drm_mem_init(); +#ifdef __FreeBSD__ + drm_sysctl_init(dev); +#endif + TAILQ_INIT(&dev->files); + + if (dev->driver.load != NULL) { + retcode = dev->driver.load(dev, dev->id_entry->driver_private); + if (retcode != 0) + goto error; + } + + if (dev->driver.use_agp) { + if (drm_device_is_agp(dev)) + dev->agp = drm_agp_init(); + if (dev->driver.require_agp && dev->agp == NULL) { + DRM_ERROR("Card isn't AGP, or couldn't initialize " + "AGP.\n"); + retcode = DRM_ERR(ENOMEM); + goto error; + } + if (dev->agp != NULL) { + if (drm_mtrr_add(dev->agp->info.ai_aperture_base, + dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) + dev->agp->mtrr = 1; + } + } + + retcode = drm_ctxbitmap_init(dev); + if (retcode != 0) { + DRM_ERROR("Cannot allocate memory for context bitmap.\n"); + goto error; + } + + DRM_INFO("Initialized %s %d.%d.%d %s\n", + dev->driver.name, + dev->driver.major, + dev->driver.minor, + dev->driver.patchlevel, + dev->driver.date); + + return 0; + +error: +#ifdef __FreeBSD__ + drm_sysctl_cleanup(dev); +#endif + DRM_LOCK(); + drm_lastclose(dev); + DRM_UNLOCK(); +#ifdef __FreeBSD__ + destroy_dev(dev->devnode); +#if __FreeBSD_version >= 500000 + mtx_destroy(&dev->dev_lock); +#endif +#endif + return retcode; +} + +static void drm_unload(drm_device_t *dev) +{ + int i; + + DRM_DEBUG( "\n" ); + +#ifdef __FreeBSD__ + drm_sysctl_cleanup(dev); + destroy_dev(dev->devnode); +#endif + + drm_ctxbitmap_cleanup(dev); + + 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); + } + + DRM_LOCK(); + drm_lastclose(dev); + DRM_UNLOCK(); + + /* Clean up PCI resources allocated by drm_bufs.c. We're not really + * worried about resource consumption while the DRM is inactive (between + * lastclose and firstopen or unload) because these aren't actually + * taking up KVA, just keeping the PCI resource allocated. + */ + for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { + if (dev->pcir[i] == NULL) + continue; + bus_release_resource(dev->device, SYS_RES_MEMORY, + dev->pcirid[i], dev->pcir[i]); + dev->pcir[i] = NULL; + } + + if ( dev->agp ) { + free(dev->agp, M_DRM); + dev->agp = NULL; + } + + if (dev->driver.unload != NULL) + dev->driver.unload(dev); + + drm_mem_uninit(); +#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 + mtx_destroy(&dev->dev_lock); +#endif +} + + +int drm_version(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + 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 = dev->driver.major; + version.version_minor = dev->driver.minor; + version.version_patchlevel = dev->driver.patchlevel; + + DRM_COPY(version.name, dev->driver.name); + DRM_COPY(version.date, dev->driver.date); + DRM_COPY(version.desc, dev->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_firstopen(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->driver.preclose != NULL) + dev->driver.preclose(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__) || defined(__OpenBSD__) + 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 (dev->driver.reclaim_buffers_locked != NULL) + dev->driver.reclaim_buffers_locked(dev, filp); + + 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. */ + } else if (dev->driver.reclaim_buffers_locked != NULL && + dev->lock.hw_lock != NULL) { + /* 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.filp = filp; + 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) { + dev->driver.reclaim_buffers_locked(dev, filp); + drm_lock_free(dev, &dev->lock.hw_lock->lock, + DRM_KERNEL_CONTEXT); + } + } + + if (dev->driver.use_dma && !dev->driver.reclaim_buffers_locked) + drm_reclaim_buffers(dev, filp); + +#if defined (__FreeBSD__) && (__FreeBSD_version >= 500000) + funsetown(&dev->buf_sigio); +#elif defined(__FreeBSD__) + funsetown(dev->buf_sigio); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + dev->buf_pgid = 0; +#endif /* __NetBSD__ || __OpenBSD__ */ + + if (--priv->refs == 0) { + if (dev->driver.postclose != NULL) + dev->driver.postclose(dev, priv); + TAILQ_REMOVE(&dev->files, priv, link); + free(priv, M_DRM); + } + + /* ======================================================== + * 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_lastclose(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); + int is_driver_ioctl = 0; + drm_file_t *priv; + DRMFILE filp = (DRMFILE)(uintptr_t)DRM_CURRENTPID; + + DRM_LOCK(); + priv = drm_find_file_by_proc(dev, p); + DRM_UNLOCK(); + if (priv == NULL) { + DRM_ERROR("can't find authenticator\n"); + return EINVAL; + } + + 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__) || defined(__OpenBSD__) + 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__ */ +#if defined(__NetBSD__) || defined(__OpenBSD__) + case TIOCSPGRP: + dev->buf_pgid = *(int *)data; + return 0; + + case TIOCGPGRP: + *(int *)data = dev->buf_pgid; + return 0; +#endif /* __NetBSD__ */ + } + + if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { + DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); + return EINVAL; + } + + ioctl = &drm_ioctls[nr]; + /* It's not a core DRM ioctl, try driver-specific. */ + if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { + /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ + nr -= DRM_COMMAND_BASE; + if (nr > dev->driver.max_ioctl) { + DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", + nr, dev->driver.max_ioctl); + return EINVAL; + } + ioctl = &dev->driver.ioctls[nr]; + is_driver_ioctl = 1; + } + func = ioctl->func; + + if (func == NULL) { + DRM_DEBUG( "no function\n" ); + return EINVAL; + } + /* ioctl->master check should be against something in the filp set up + * for the first opener, but it doesn't matter yet. + */ + if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || + ((ioctl->flags & DRM_AUTH) && !priv->authenticated) || + ((ioctl->flags & DRM_MASTER) && !priv->master)) + return EACCES; + + if (is_driver_ioctl) + DRM_LOCK(); + retcode = func(kdev, cmd, data, flags, p, filp); + if (is_driver_ioctl) + DRM_UNLOCK(); + + if (retcode != 0) + DRM_DEBUG(" returning %d\n", retcode); + + return DRM_ERR(retcode); +} + + +#if DRM_LINUX + +#include <sys/sysproto.h> + +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 */ |