diff options
Diffstat (limited to 'nx-X11/extras/drm/linux/drm_drv.h')
| -rw-r--r-- | nx-X11/extras/drm/linux/drm_drv.h | 1127 |
1 files changed, 0 insertions, 1127 deletions
diff --git a/nx-X11/extras/drm/linux/drm_drv.h b/nx-X11/extras/drm/linux/drm_drv.h deleted file mode 100644 index 7bb87726c..000000000 --- a/nx-X11/extras/drm/linux/drm_drv.h +++ /dev/null @@ -1,1127 +0,0 @@ -/** - * \file drm_drv.h - * Generic driver template - * - * \author Rickard E. (Rik) Faith <faith@valinux.com> - * \author Gareth Hughes <gareth@valinux.com> - * - * To use this template, you must at least define the following (samples - * given for the MGA driver): - * - * \code - * #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 - * \endcode - */ - -/* - * 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. - */ - -#ifndef DRIVER_IOCTLS -#define DRIVER_IOCTLS -#endif - -static void __exit drm_cleanup( drm_device_t *dev ); - -#ifndef MODULE -/** Use an additional macro to avoid preprocessor troubles */ -#define DRM_OPTIONS_FUNC DRM(options) -/** - * Called by the kernel to parse command-line options passed via the - * boot-loader (e.g., LILO). It calls the insmod option routine, - * parse_options(). - */ -static int __init DRM(options)( char *str ) -{ - DRM(parse_options)( str ); - return 1; -} - -__setup( DRIVER_NAME "=", DRM_OPTIONS_FUNC ); -#undef DRM_OPTIONS_FUNC -#endif - -int DRM(fb_loaded) = 0; - -struct file_operations DRM(fops) = { - .owner = THIS_MODULE, - .open = DRM(open), - .flush = DRM(flush), - .release = DRM(release), - .ioctl = DRM(ioctl), - .mmap = DRM(mmap), - .fasync = DRM(fasync), - .poll = DRM(poll), - .read = DRM(read), -}; - -/** Ioctl table */ -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 }, - [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_by_busid), 0, 1 }, - [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 }, - - [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 }, - - [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 }, - - [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. */ - - [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 }, - -#if __OS_HAS_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 - - [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { DRM(sg_alloc), 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { DRM(sg_free), 1, 1 }, - - [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { DRM(wait_vblank), 0, 0 }, - - DRIVER_IOCTLS -}; - -#define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) ) - -static int DRM(setup)( drm_device_t *dev ) -{ - int i; - - if (dev->fn_tbl.presetup) - dev->fn_tbl.presetup(dev); - - atomic_set( &dev->ioctl_count, 0 ); - atomic_set( &dev->vma_count, 0 ); - dev->buf_use = 0; - atomic_set( &dev->buf_alloc, 0 ); - - if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - { - i = DRM(dma_setup)( dev ); - if ( i < 0 ) - return i; - } - - 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->ctxlist = DRM(alloc)(sizeof(*dev->ctxlist), - DRM_MEM_CTXLIST); - if(dev->ctxlist == NULL) return -ENOMEM; - memset(dev->ctxlist, 0, sizeof(*dev->ctxlist)); - INIT_LIST_HEAD(&dev->ctxlist->head); - - dev->vmalist = NULL; - dev->sigdata.lock = dev->lock.hw_lock = NULL; - init_waitqueue_head( &dev->lock.lock_queue ); - dev->queue_count = 0; - dev->queue_reserved = 0; - dev->queue_slots = 0; - dev->queuelist = NULL; - dev->irq_enabled = 0; - dev->context_flag = 0; - dev->interrupt_flag = 0; - dev->dma_flag = 0; - dev->last_context = 0; - dev->last_switch = 0; - dev->last_checked = 0; - init_waitqueue_head( &dev->context_wait ); - dev->if_version = 0; - - dev->ctx_start = 0; - dev->lck_start = 0; - - dev->buf_rp = dev->buf; - dev->buf_wp = dev->buf; - dev->buf_end = dev->buf + DRM_BSZ; - dev->buf_async = NULL; - init_waitqueue_head( &dev->buf_readers ); - init_waitqueue_head( &dev->buf_writers ); - - DRM_DEBUG( "\n" ); - - /* - * The kernel's context could be created here, but is now created - * in drm_dma_enqueue. This is more resource-efficient for - * hardware that does not do DMA, but may mean that - * drm_select_queue fails between the time the interrupt is - * initialized and the time the queues are initialized. - */ - if (dev->fn_tbl.postsetup) - dev->fn_tbl.postsetup(dev); - - return 0; -} - - -/** - * Take down the DRM device. - * - * \param dev DRM device structure. - * - * Frees every resource in \p dev. - * - * \sa drm_device and setup(). - */ -static int DRM(takedown)( drm_device_t *dev ) -{ - drm_magic_entry_t *pt, *next; - drm_map_t *map; - drm_map_list_t *r_list; - struct list_head *list, *list_next; - drm_vma_entry_t *vma, *vma_next; - int i; - - DRM_DEBUG( "\n" ); - - if (dev->fn_tbl.pretakedown) - dev->fn_tbl.pretakedown(dev); - - if ( dev->irq_enabled ) DRM(irq_uninstall)( dev ); - - down( &dev->struct_sem ); - del_timer( &dev->timer ); - - if ( dev->devname ) { - DRM(free)( dev->devname, strlen( dev->devname ) + 1, - DRM_MEM_DRIVER ); - dev->devname = NULL; - } - - 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; - } - - /* Clear AGP information */ - if (drm_core_has_AGP(dev) && dev->agp) { - drm_agp_mem_t *entry; - drm_agp_mem_t *nexte; - - /* Remove AGP resources, but leave dev->agp - intact until drv_cleanup is called. */ - for ( entry = dev->agp->memory ; entry ; entry = nexte ) { - nexte = entry->next; - if ( entry->bound ) DRM(unbind_agp)( entry->memory ); - DRM(free_agp)( entry->memory, 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; - } - - /* Clear vma list (only built for debugging) */ - if ( dev->vmalist ) { - for ( vma = dev->vmalist ; vma ; vma = vma_next ) { - vma_next = vma->next; - DRM(free)( vma, sizeof(*vma), DRM_MEM_VMAS ); - } - dev->vmalist = NULL; - } - - if( dev->maplist ) { - list_for_each_safe( list, list_next, &dev->maplist->head ) { - r_list = (drm_map_list_t *)list; - - if ( ( map = r_list->map ) ) { - switch ( map->type ) { - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: - continue; - - case _DRM_SHM: - vfree(map->handle); - break; - - case _DRM_AGP: - /* Do nothing here, because this is all - * handled in the AGP/GART driver. - */ - break; - case _DRM_SCATTER_GATHER: - /* Handle it */ - if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg) { - DRM(sg_cleanup)(dev->sg); - dev->sg = NULL; - } - break; - } - DRM(free)(map, sizeof(*map), DRM_MEM_MAPS); - } - list_del( list ); - DRM(free)(r_list, sizeof(*r_list), DRM_MEM_MAPS); - } - } - - - if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) { - for ( i = 0 ; i < dev->queue_count ; i++ ) { - - if ( dev->queuelist[i] ) { - DRM(free)( dev->queuelist[i], - sizeof(*dev->queuelist[0]), - DRM_MEM_QUEUES ); - dev->queuelist[i] = NULL; - } - } - DRM(free)( dev->queuelist, - dev->queue_slots * sizeof(*dev->queuelist), - DRM_MEM_QUEUES ); - dev->queuelist = NULL; - } - dev->queue_count = 0; - - if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - DRM(dma_takedown)( dev ); - - if ( dev->lock.hw_lock ) { - dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */ - dev->lock.filp = NULL; - wake_up_interruptible( &dev->lock.lock_queue ); - } - up( &dev->struct_sem ); - - return 0; -} - -static void DRM(init_fn_table)(struct drm_device *dev) -{ - dev->fn_tbl.reclaim_buffers = DRM(core_reclaim_buffers); - dev->fn_tbl.get_map_ofs = DRM(core_get_map_ofs); - dev->fn_tbl.get_reg_ofs = DRM(core_get_reg_ofs); -} - -#include "drm_pciids.h" - -static struct pci_device_id DRM(pciidlist)[] = { - DRM(PCI_IDS) -}; - -int DRM(fill_in_dev)(drm_device_t *dev, struct pci_dev *pdev, const struct pci_device_id *ent) -{ - int retcode; - - spin_lock_init(&dev->count_lock); - init_timer( &dev->timer ); - sema_init( &dev->struct_sem, 1 ); - sema_init( &dev->ctxlist_sem, 1 ); - - dev->name = DRIVER_NAME; - dev->fops = &DRM(fops); - dev->pdev = pdev; - -#ifdef __alpha__ - dev->hose = pdev->sysdata; - dev->pci_domain = dev->hose->bus->number; -#else - dev->pci_domain = 0; -#endif - dev->pci_bus = pdev->bus->number; - dev->pci_slot = PCI_SLOT(pdev->devfn); - dev->pci_func = PCI_FUNC(pdev->devfn); - dev->irq = pdev->irq; - - dev->maplist = DRM(calloc)(1, sizeof(*dev->maplist), DRM_MEM_MAPS); - if(dev->maplist == NULL) return -ENOMEM; - INIT_LIST_HEAD(&dev->maplist->head); - - /* dev_priv_size can be changed by a driver in driver_register_fns */ - dev->dev_priv_size = sizeof(u32); - - /* the DRM has 6 counters */ - 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; - - DRM(init_fn_table)(dev); - - DRM(driver_register_fns)(dev); - - if (dev->fn_tbl.preinit) - if ((retcode = dev->fn_tbl.preinit(dev, ent->driver_data))) - goto error_out_unreg; - - if (drm_core_has_AGP(dev)) { - dev->agp = DRM(agp_init)(); - if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && (dev->agp == NULL)) { - DRM_ERROR( "Cannot initialize the agpgart module.\n" ); - retcode = -EINVAL; - goto error_out_unreg; - } - - - if (drm_core_has_MTRR(dev)) { - if (dev->agp) - dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size*1024*1024, - MTRR_TYPE_WRCOMB, - 1 ); - } - } - - retcode = DRM(ctxbitmap_init)( dev ); - if( retcode ) { - DRM_ERROR( "Cannot allocate memory for context bitmap.\n" ); - goto error_out_unreg; - } - - dev->device = MKDEV(DRM_MAJOR, dev->minor ); - - DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d: %s\n", - DRIVER_NAME, - DRIVER_MAJOR, - DRIVER_MINOR, - DRIVER_PATCHLEVEL, - DRIVER_DATE, - dev->minor, - pci_pretty_name(pdev) - ); - - /* drivers add secondary heads here if needed */ - if (dev->fn_tbl.postinit) - if ((retcode = dev->fn_tbl.postinit(dev, ent->driver_data))) - goto error_out_unreg; - - return 0; - - error_out_unreg: - DRM(takedown)(dev); - return retcode; -} - -static void __exit drm_cleanup_pci(struct pci_dev *pdev) -{ - drm_device_t *dev = pci_get_drvdata(pdev); - - pci_set_drvdata(pdev, NULL); - pci_release_regions(pdev); - if (dev) - drm_cleanup(dev); -} - -static struct pci_driver drm_driver = { - .name = DRIVER_NAME, - .id_table = DRM(pciidlist), - .probe = DRM(probe), - .remove = __devexit_p(drm_cleanup_pci), -}; - -#ifdef MODULE -static char *drm_opts = NULL; -#endif -MODULE_PARM( drm_opts, "s" ); - -/** - * Module initialization. Called via init_module at module load time, or via - * linux/init/main.c (this is not currently supported). - * - * \return zero on success or a negative number on failure. - * - * Initializes an array of drm_device structures, and attempts to - * initialize all available devices, using consecutive minors, registering the - * stubs and initializing the AGP device. - * - * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and - * after the initialization for driver customization. - */ -static int __init drm_init( void ) -{ - struct pci_dev *pdev; - struct pci_device_id *pid; - int i; - - DRM_DEBUG( "\n" ); - -#ifdef MODULE - DRM(parse_options)( drm_opts ); -#endif - - DRM(mem_init)(); - - for (i=0; (DRM(pciidlist)[i].vendor != 0) && !DRM(fb_loaded); i++) { - pid = &DRM(pciidlist[i]); - - pdev = NULL; - /* pass back in pdev to account for multiple identical cards */ - while ((pdev = pci_get_subsys(pid->vendor, pid->device, pid->subvendor, pid->subdevice, pdev))) { - /* is there already a driver loaded, or (short circuit saves work) */ - /* does something like VesaFB have control of the memory region? */ - if (pci_dev_driver(pdev) || pci_request_regions(pdev, "DRM scan")) { - /* go into stealth mode */ - DRM(fb_loaded) = 1; - pci_dev_put(pdev); - break; - } - /* no fbdev or vesadev, put things back and wait for normal probe */ - pci_release_regions(pdev); - } - } - - if (DRM(fb_loaded) == 0) - pci_register_driver(&drm_driver); - else { - for (i=0; DRM(pciidlist)[i].vendor != 0; i++) { - pid = &DRM(pciidlist[i]); - - pdev = NULL; - /* pass back in pdev to account for multiple identical cards */ - while ((pdev = pci_get_subsys(pid->vendor, pid->device, pid->subvendor, pid->subdevice, pdev))) { - /* stealth mode requires a manual probe */ - pci_dev_get(pdev); - DRM(probe)(pdev, &DRM(pciidlist[i])); - } - } - DRM_INFO("Used old pci detect: framebuffer loaded\n"); - } - return 0; -} - -/** - * Called via cleanup_module() at module unload time. - * - * Cleans up all DRM device, calling takedown(). - * - * \sa drm_init(). - */ -static void __exit drm_cleanup( drm_device_t *dev ) -{ - drm_map_t *map; - drm_map_list_t *r_list; - struct list_head *list, *list_next; - - DRM_DEBUG( "\n" ); - if (!dev) { - DRM_ERROR("cleanup called no dev\n"); - return; - } - - DRM(takedown)(dev); - - if( dev->maplist ) { - list_for_each_safe( list, list_next, &dev->maplist->head ) { - r_list = (drm_map_list_t *)list; - - if ( ( map = r_list->map ) ) { - switch ( map->type ) { - case _DRM_REGISTERS: - DRM(ioremapfree)( map->handle, map->size, dev ); - break; - - case _DRM_FRAME_BUFFER: - if ( drm_core_has_MTRR(dev)) { - if ( map->mtrr >= 0 ) { - int retcode; - retcode = mtrr_del( map->mtrr, - map->offset, - map->size ); - DRM_DEBUG( "mtrr_del=%d\n", retcode ); - } - } - break; - - case _DRM_SHM: - case _DRM_AGP: - case _DRM_SCATTER_GATHER: - DRM_DEBUG("Extra maplist item\n"); - break; - } - DRM(free)(map, sizeof(*map), DRM_MEM_MAPS); - } - list_del( list ); - DRM(free)(r_list, sizeof(*r_list), DRM_MEM_MAPS); - } - DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS); - dev->maplist = NULL; - } - if (DRM(fb_loaded)==0) - pci_disable_device(dev->pdev); - - DRM(ctxbitmap_cleanup)( dev ); - - if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && dev->agp && dev->agp->agp_mtrr >= 0) { - int retval; - retval = mtrr_del( dev->agp->agp_mtrr, - dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size*1024*1024 ); - DRM_DEBUG( "mtrr_del=%d\n", retval ); - } - - if (drm_core_has_AGP(dev) && dev->agp ) { - DRM(agp_uninit)(); - DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS ); - dev->agp = NULL; - } - if (dev->fn_tbl.postcleanup) - dev->fn_tbl.postcleanup(dev); - - if ( DRM(put_minor)(dev) ) - DRM_ERROR( "Cannot unload module\n" ); -} - -static void __exit drm_exit (void) -{ - int i; - drm_device_t *dev; - drm_minor_t *minor; - - DRM_DEBUG( "\n" ); - if (DRM(fb_loaded)) { - if (DRM(global)) { - for (i = 0; DRM(global) && (i < DRM(global)->cards_limit); i++) { - minor = &DRM(global)->minors[i]; - dev = minor->dev; - DRM_DEBUG("fb loaded release minor %d\n", dev->minor); - if ((minor->class == DRM_MINOR_PRIMARY) && (dev->fops == &DRM(fops))) { - /* release the pci driver */ - if (dev->pdev) - pci_dev_put(dev->pdev); - drm_cleanup(dev); - } - } - } - } else - pci_unregister_driver(&drm_driver); - DRM_INFO( "Module unloaded\n" ); -} - - -module_init( drm_init ); -module_exit( drm_exit ); - - -/** - * Get version information - * - * \param inode device inode. - * \param filp file pointer. - * \param cmd command. - * \param arg user argument, pointing to a drm_version structure. - * \return zero on success or negative number on failure. - * - * Fills in the version information in \p arg. - */ -int DRM(version)( struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg ) -{ - drm_version_t __user *argp = (void __user *)arg; - drm_version_t version; - int len; - - if ( copy_from_user( &version, argp, sizeof(version) ) ) - return -EFAULT; - -#define DRM_COPY( name, value ) \ - len = strlen( value ); \ - if ( len > name##_len ) len = name##_len; \ - name##_len = strlen( value ); \ - if ( len && name ) { \ - if ( copy_to_user( name, value, len ) ) \ - return -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 ); - - if ( copy_to_user( argp, &version, sizeof(version) ) ) - return -EFAULT; - return 0; -} - -/** - * Open file. - * - * \param inode device inode - * \param filp file pointer. - * \return zero on success or a negative number on failure. - * - * Searches the DRM device with the same minor number, calls open_helper(), and - * increments the device open count. If the open count was previous at zero, - * i.e., it's the first that the device is open, then calls setup(). - */ -int DRM(open)( struct inode *inode, struct file *filp ) -{ - drm_device_t *dev = NULL; - int minor = iminor(inode); - int retcode = 0; - - if (!((minor >= 0) && (minor < DRM(global)->cards_limit))) - return -ENODEV; - - dev = DRM(global)->minors[minor].dev; - if (!dev) - return -ENODEV; - - retcode = DRM(open_helper)( inode, filp, dev ); - if ( !retcode ) { - atomic_inc( &dev->counts[_DRM_STAT_OPENS] ); - spin_lock( &dev->count_lock ); - if ( !dev->open_count++ ) { - spin_unlock( &dev->count_lock ); - return DRM(setup)( dev ); - } - spin_unlock( &dev->count_lock ); - } - - return retcode; -} - -/** - * Release file. - * - * \param inode device inode - * \param filp file pointer. - * \return zero on success or a negative number on failure. - * - * If the hardware lock is held then free it, and take it again for the kernel - * context since it's necessary to reclaim buffers. Unlink the file private - * data from its list and free it. Decreases the open count and if it reaches - * zero calls takedown(). - */ -int DRM(release)( struct inode *inode, struct file *filp ) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev; - int retcode = 0; - - lock_kernel(); - dev = priv->dev; - - DRM_DEBUG( "open_count = %d\n", dev->open_count ); - - if (dev->fn_tbl.prerelease) - dev->fn_tbl.prerelease(dev, filp); - - /* ======================================================== - * Begin inline drm_release - */ - - DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", - current->pid, (long)old_encode_dev(dev->device), dev->open_count ); - - if ( priv->lock_count && dev->lock.hw_lock && - _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) && - dev->lock.filp == filp ) { - DRM_DEBUG( "File %p released, freeing lock for context %d\n", - filp, - _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) ); - - if (dev->fn_tbl.release) - dev->fn_tbl.release(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->fn_tbl.release && priv->lock_count && dev->lock.hw_lock ) { - /* The lock is required to reclaim buffers */ - DECLARE_WAITQUEUE( entry, current ); - - add_wait_queue( &dev->lock.lock_queue, &entry ); - for (;;) { - current->state = TASK_INTERRUPTIBLE; - if ( !dev->lock.hw_lock ) { - /* Device has been unregistered */ - retcode = -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 */ - schedule(); - if ( signal_pending( current ) ) { - retcode = -ERESTARTSYS; - break; - } - } - current->state = TASK_RUNNING; - remove_wait_queue( &dev->lock.lock_queue, &entry ); - if( !retcode ) { - if (dev->fn_tbl.release) - dev->fn_tbl.release(dev, filp); - DRM(lock_free)( dev, &dev->lock.hw_lock->lock, - DRM_KERNEL_CONTEXT ); - } - } - - if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - { - dev->fn_tbl.reclaim_buffers(dev, filp); - } - - DRM(fasync)( -1, filp, 0 ); - - down( &dev->ctxlist_sem ); - if ( !list_empty( &dev->ctxlist->head ) ) { - drm_ctx_list_t *pos, *n; - - list_for_each_entry_safe( pos, n, &dev->ctxlist->head, head ) { - if ( pos->tag == priv && - pos->handle != DRM_KERNEL_CONTEXT ) { - if (dev->fn_tbl.context_dtor) - dev->fn_tbl.context_dtor(dev, pos->handle); - - DRM(ctxbitmap_free)( dev, pos->handle ); - - list_del( &pos->head ); - DRM(free)( pos, sizeof(*pos), DRM_MEM_CTXLIST ); - --dev->ctx_count; - } - } - } - up( &dev->ctxlist_sem ); - - down( &dev->struct_sem ); - if ( priv->remove_auth_on_close == 1 ) { - drm_file_t *temp = dev->file_first; - while ( temp ) { - temp->authenticated = 0; - temp = temp->next; - } - } - if ( priv->prev ) { - priv->prev->next = priv->next; - } else { - dev->file_first = priv->next; - } - if ( priv->next ) { - priv->next->prev = priv->prev; - } else { - dev->file_last = priv->prev; - } - up( &dev->struct_sem ); - - if (dev->fn_tbl.free_filp_priv) - dev->fn_tbl.free_filp_priv( dev, priv ); - DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES ); - - /* ======================================================== - * End inline drm_release - */ - - atomic_inc( &dev->counts[_DRM_STAT_CLOSES] ); - spin_lock( &dev->count_lock ); - if ( !--dev->open_count ) { - if ( atomic_read( &dev->ioctl_count ) || dev->blocked ) { - DRM_ERROR( "Device busy: %d %d\n", - atomic_read( &dev->ioctl_count ), - dev->blocked ); - spin_unlock( &dev->count_lock ); - unlock_kernel(); - return -EBUSY; - } - spin_unlock( &dev->count_lock ); - unlock_kernel(); - return DRM(takedown)( dev ); - } - spin_unlock( &dev->count_lock ); - - unlock_kernel(); - - return retcode; -} - -/** - * Called whenever a process performs an ioctl on /dev/drm. - * - * \param inode device inode. - * \param filp file pointer. - * \param cmd command. - * \param arg user argument. - * \return zero on success or negative number on failure. - * - * Looks up the ioctl function in the ::ioctls table, checking for root - * previleges if so required, and dispatches to the respective function. - */ -int DRM(ioctl)( struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg ) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - drm_ioctl_desc_t *ioctl; - drm_ioctl_t *func; - int nr = DRM_IOCTL_NR(cmd); - int retcode = 0; - - atomic_inc( &dev->ioctl_count ); - atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] ); - ++priv->ioctl_count; - - DRM_DEBUG( "pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n", - current->pid, cmd, nr, (long)old_encode_dev(dev->device), - priv->authenticated ); - - if ( nr >= DRIVER_IOCTL_COUNT ) { - retcode = -EINVAL; - } else { - ioctl = &DRM(ioctls)[nr]; - func = ioctl->func; - - if ( !func ) { - DRM_DEBUG( "no function\n" ); - retcode = -EINVAL; - } else if ( ( ioctl->root_only && !capable( CAP_SYS_ADMIN ) )|| - ( ioctl->auth_needed && !priv->authenticated ) ) { - retcode = -EACCES; - } else { - retcode = func( inode, filp, cmd, arg ); - } - } - - atomic_dec( &dev->ioctl_count ); - if (retcode) DRM_DEBUG( "ret = %x\n", retcode); - return retcode; -} - -/** - * Lock ioctl. - * - * \param inode device inode. - * \param filp file pointer. - * \param cmd command. - * \param arg user argument, pointing to a drm_lock structure. - * \return zero on success or negative number on failure. - * - * Add the current task to the lock wait queue, and attempt to take to lock. - */ -int DRM(lock)( struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg ) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - DECLARE_WAITQUEUE( entry, current ); - drm_lock_t lock; - int ret = 0; - - ++priv->lock_count; - - if ( copy_from_user( &lock, (drm_lock_t __user *)arg, sizeof(lock) ) ) - return -EFAULT; - - if ( lock.context == DRM_KERNEL_CONTEXT ) { - DRM_ERROR( "Process %d using kernel context %d\n", - current->pid, lock.context ); - return -EINVAL; - } - - DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", - lock.context, current->pid, - dev->lock.hw_lock->lock, lock.flags ); - - if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)) - if ( lock.context < 0 ) - return -EINVAL; - - add_wait_queue( &dev->lock.lock_queue, &entry ); - for (;;) { - current->state = TASK_INTERRUPTIBLE; - if ( !dev->lock.hw_lock ) { - /* Device has been unregistered */ - ret = -EINTR; - break; - } - if ( DRM(lock_take)( &dev->lock.hw_lock->lock, - lock.context ) ) { - dev->lock.filp = filp; - dev->lock.lock_time = jiffies; - atomic_inc( &dev->counts[_DRM_STAT_LOCKS] ); - break; /* Got lock */ - } - - /* Contention */ - schedule(); - if ( signal_pending( current ) ) { - ret = -ERESTARTSYS; - break; - } - } - current->state = TASK_RUNNING; - remove_wait_queue( &dev->lock.lock_queue, &entry ); - - DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" ); - if (ret) return ret; - - sigemptyset( &dev->sigmask ); - sigaddset( &dev->sigmask, SIGSTOP ); - sigaddset( &dev->sigmask, SIGTSTP ); - sigaddset( &dev->sigmask, SIGTTIN ); - sigaddset( &dev->sigmask, SIGTTOU ); - dev->sigdata.context = lock.context; - dev->sigdata.lock = dev->lock.hw_lock; - block_all_signals( DRM(notifier), - &dev->sigdata, &dev->sigmask ); - - if (dev->fn_tbl.dma_ready && (lock.flags & _DRM_LOCK_READY)) - dev->fn_tbl.dma_ready(dev); - - if (dev->fn_tbl.dma_quiescent && (lock.flags & _DRM_LOCK_QUIESCENT)) { - if (dev->fn_tbl.dma_quiescent(dev)) { - DRM_DEBUG( "%d waiting for DMA quiescent\n", lock.context); - return DRM_ERR(EBUSY); - } - } - - if ( dev->fn_tbl.kernel_context_switch && dev->last_context != lock.context ) { - dev->fn_tbl.kernel_context_switch(dev, dev->last_context, - lock.context); - } - - return 0; -} - -/** - * Unlock ioctl. - * - * \param inode device inode. - * \param filp file pointer. - * \param cmd command. - * \param arg user argument, pointing to a drm_lock structure. - * \return zero on success or negative number on failure. - * - * Transfer and free the lock. - */ -int DRM(unlock)( struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg ) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - drm_lock_t lock; - - if ( copy_from_user( &lock, (drm_lock_t __user *)arg, sizeof(lock) ) ) - return -EFAULT; - - if ( lock.context == DRM_KERNEL_CONTEXT ) { - DRM_ERROR( "Process %d using kernel context %d\n", - current->pid, lock.context ); - return -EINVAL; - } - - atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] ); - - if (dev->fn_tbl.kernel_context_switch_unlock) - dev->fn_tbl.kernel_context_switch_unlock(dev); - else - { - DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock, - DRM_KERNEL_CONTEXT ); - - if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock, - DRM_KERNEL_CONTEXT ) ) { - DRM_ERROR( "\n" ); - } - } - - unblock_all_signals(); - return 0; -} |