diff options
Diffstat (limited to 'linux/gamma_drv.c')
| -rw-r--r-- | linux/gamma_drv.c | 595 |
1 files changed, 64 insertions, 531 deletions
diff --git a/linux/gamma_drv.c b/linux/gamma_drv.c index a17bc1a9..79e8ad16 100644 --- a/linux/gamma_drv.c +++ b/linux/gamma_drv.c @@ -30,542 +30,75 @@ */ #include <linux/config.h> +#include "gamma.h" #include "drmP.h" #include "gamma_drv.h" -#ifndef PCI_DEVICE_ID_3DLABS_GAMMA -#define PCI_DEVICE_ID_3DLABS_GAMMA 0x0008 +#define DRIVER_AUTHOR "VA Linux Systems Inc." + +#define DRIVER_NAME "gamma" +#define DRIVER_DESC "3DLabs gamma" +#define DRIVER_DATE "20010208" + +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 0 + + +#define DRIVER_IOCTLS \ + [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { gamma_dma, 1, 0 } + +#define __HAVE_MTRR 1 +#define __HAVE_CTX_BITMAP 0 +#define __HAVE_PCI_DMA 1 +#define __HAVE_MULTIPLE_DMA_QUEUES 1 +#define __HAVE_DMA_FLUSH 1 +#define __HAVE_DMA_QUEUE 0 +#define __HAVE_DMA_SCHEDULE 1 +#define __HAVE_DMA_WAITQUEUE 1 +#define __HAVE_DMA_WAITLIST 1 +#define __HAVE_DMA_FREELIST 1 +#define __HAVE_DMA 1 +#define __HAVE_OLD_DMA 1 +#define __HAVE_DMA_IRQ 1 + +#define __HAVE_COUNTERS 5 +#define __HAVE_COUNTER6 _DRM_STAT_IRQ +#define __HAVE_COUNTER7 _DRM_STAT_DMA +#define __HAVE_COUNTER8 _DRM_STAT_PRIMARY +#define __HAVE_COUNTER9 _DRM_STAT_SPECIAL +#define __HAVE_COUNTER10 _DRM_STAT_MISSED + +#define __HAVE_DMA_READY 1 +#define DRIVER_DMA_READY() \ +do { \ + gamma_dma_ready(dev); \ +} while (0) + +#define __HAVE_DMA_QUIESCENT 1 +#define DRIVER_DMA_QUIESCENT() \ +do { \ + /* FIXME ! */ \ + gamma_dma_quiescent_dual(dev); \ + return 0; \ +} while (0) + +#if 0 +#define __HAVE_DRIVER_RELEASE 1 +#define DRIVER_RELEASE() do { \ + gamma_reclaim_buffers( dev, priv->pid ); \ + if ( dev->dev_private ) { \ + drm_gamma_private_t *dev_priv = dev->dev_private; \ + dev_priv->dispatch_status &= MGA_IN_DISPATCH; \ + } \ +} while (0) #endif -#ifndef PCI_DEVICE_ID_3DLABS_MX -#define PCI_DEVICE_ID_3DLABS_MX 0x0006 -#endif - -#define GAMMA_NAME "gamma" -#define GAMMA_DESC "3dlabs GMX 2000" -#define GAMMA_DATE "20000910" -#define GAMMA_MAJOR 1 -#define GAMMA_MINOR 0 -#define GAMMA_PATCHLEVEL 0 - -static drm_device_t gamma_device; - -static struct file_operations gamma_fops = { -#if LINUX_VERSION_CODE >= 0x020400 - /* This started being used during 2.4.0-test */ - owner: THIS_MODULE, -#endif - open: gamma_open, - flush: drm_flush, - release: gamma_release, - ioctl: gamma_ioctl, - mmap: drm_mmap, - read: drm_read, - fasync: drm_fasync, - poll: drm_poll, -}; - -static struct miscdevice gamma_misc = { - minor: MISC_DYNAMIC_MINOR, - name: GAMMA_NAME, - fops: &gamma_fops, -}; - -static drm_ioctl_desc_t gamma_ioctls[] = { - [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { gamma_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_busid, 0, 1 }, - - [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_block, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_unblock, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { gamma_control, 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_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 }, - - [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_DMA)] = { gamma_dma, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { gamma_lock, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { gamma_unlock, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 }, -}; -#define GAMMA_IOCTL_COUNT DRM_ARRAY_SIZE(gamma_ioctls) - -#ifdef MODULE -static char *gamma = NULL; -#endif -static int devices = 0; - -MODULE_AUTHOR("VA Linux Systems, Inc."); -MODULE_DESCRIPTION("3dlabs GMX 2000"); -MODULE_PARM(gamma, "s"); -MODULE_PARM(devices, "i"); -MODULE_PARM_DESC(devices, - "devices=x, where x is the number of MX chips on card\n"); -#ifndef MODULE -/* gamma_options is called by the kernel to parse command-line options - * passed via the boot-loader (e.g., LILO). It calls the insmod option - * routine, drm_parse_options. - */ - - -static int __init gamma_options(char *str) -{ - drm_parse_options(str); - return 1; -} - -__setup("gamma=", gamma_options); -#endif - -static int gamma_setup(drm_device_t *dev) -{ - int i; - - atomic_set(&dev->ioctl_count, 0); - atomic_set(&dev->vma_count, 0); - dev->buf_use = 0; - atomic_set(&dev->buf_alloc, 0); - - drm_dma_setup(dev); - - atomic_set(&dev->total_open, 0); - atomic_set(&dev->total_close, 0); - atomic_set(&dev->total_ioctl, 0); - atomic_set(&dev->total_irq, 0); - atomic_set(&dev->total_ctx, 0); - atomic_set(&dev->total_locks, 0); - atomic_set(&dev->total_unlocks, 0); - atomic_set(&dev->total_contends, 0); - atomic_set(&dev->total_sleeps, 0); - - for (i = 0; i < DRM_HASH_SIZE; i++) { - dev->magiclist[i].head = NULL; - dev->magiclist[i].tail = NULL; - } - dev->maplist = NULL; - dev->map_count = 0; - dev->vmalist = NULL; - 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 = 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_timer(&dev->timer); - init_waitqueue_head(&dev->context_wait); -#if DRM_DMA_HISTO - memset(&dev->histo, 0, sizeof(dev->histo)); -#endif - 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. */ - - return 0; -} - - -static int gamma_takedown(drm_device_t *dev) -{ - int i; - drm_magic_entry_t *pt, *next; - drm_map_t *map; - drm_vma_entry_t *vma, *vma_next; - - DRM_DEBUG("\n"); - - if (dev->irq) gamma_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 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; - } - - /* Clear map area and mtrr information */ - if (dev->maplist) { - for (i = 0; i < dev->map_count; i++) { - map = dev->maplist[i]; - switch (map->type) { - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: -#ifdef CONFIG_MTRR - if (map->mtrr >= 0) { - int retcode; - retcode = mtrr_del(map->mtrr, - map->offset, - map->size); - DRM_DEBUG("mtrr_del = %d\n", retcode); - } -#endif - drm_ioremapfree(map->handle, map->size); - break; - case _DRM_SHM: - drm_free_pages((unsigned long)map->handle, - drm_order(map->size) - - PAGE_SHIFT, - DRM_MEM_SAREA); - break; - case _DRM_AGP: - /* Do nothing here, because this is all - handled in the AGP/GART driver. */ - break; - } - drm_free(map, sizeof(*map), DRM_MEM_MAPS); - } - drm_free(dev->maplist, - dev->map_count * sizeof(*dev->maplist), - DRM_MEM_MAPS); - dev->maplist = NULL; - dev->map_count = 0; - } - - if (dev->queuelist) { - for (i = 0; i < dev->queue_count; i++) { - drm_waitlist_destroy(&dev->queuelist[i]->waitlist); - 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; - } - - drm_dma_takedown(dev); - - dev->queue_count = 0; - if (dev->lock.hw_lock) { - dev->lock.hw_lock = NULL; /* SHM removed */ - dev->lock.pid = 0; - wake_up_interruptible(&dev->lock.lock_queue); - } - up(&dev->struct_sem); - - return 0; -} - -int gamma_found(void) -{ - return devices; -} - -int gamma_find_devices(void) -{ - struct pci_dev *d = NULL, *one = NULL, *two = NULL; - - d = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_GAMMA,d); - if (!d) return 0; - one = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_MX,d); - if (!one) return 0; - - /* Make sure it's on the same card, if not - no MX's found */ - if (PCI_SLOT(d->devfn) != PCI_SLOT(one->devfn)) return 0; - - two = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_MX,one); - if (!two) return 1; - - /* Make sure it's on the same card, if not - only 1 MX found */ - if (PCI_SLOT(d->devfn) != PCI_SLOT(two->devfn)) return 1; - - /* Two MX's found - we don't currently support more than 2 */ - return 2; -} - -/* gamma_init is called via init_module at module load time, or via - * linux/init/main.c (this is not currently supported). */ - -static int __init gamma_init(void) -{ - int retcode; - drm_device_t *dev = &gamma_device; - - DRM_DEBUG("\n"); - - memset((void *)dev, 0, sizeof(*dev)); - dev->count_lock = SPIN_LOCK_UNLOCKED; - sema_init(&dev->struct_sem, 1); - -#ifdef MODULE - drm_parse_options(gamma); -#endif - devices = gamma_find_devices(); - if (devices == 0) return -1; - - if ((retcode = misc_register(&gamma_misc))) { - DRM_ERROR("Cannot register \"%s\"\n", GAMMA_NAME); - return retcode; - } - dev->device = MKDEV(MISC_MAJOR, gamma_misc.minor); - dev->name = GAMMA_NAME; - - drm_mem_init(); - drm_proc_init(dev); - - DRM_INFO("Initialized %s %d.%d.%d %s on minor %d with %d MX devices\n", - GAMMA_NAME, - GAMMA_MAJOR, - GAMMA_MINOR, - GAMMA_PATCHLEVEL, - GAMMA_DATE, - gamma_misc.minor, - devices); - - return 0; -} - -/* gamma_cleanup is called via cleanup_module at module unload time. */ - -static void __exit gamma_cleanup(void) -{ - drm_device_t *dev = &gamma_device; - - DRM_DEBUG("\n"); - - drm_proc_cleanup(); - if (misc_deregister(&gamma_misc)) { - DRM_ERROR("Cannot unload module\n"); - } else { - DRM_INFO("Module unloaded\n"); - } - gamma_takedown(dev); -} - -module_init(gamma_init); -module_exit(gamma_cleanup); - - -int gamma_version(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - drm_version_t version; - int len; - - if (copy_from_user(&version, - (drm_version_t *)arg, - 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 = GAMMA_MAJOR; - version.version_minor = GAMMA_MINOR; - version.version_patchlevel = GAMMA_PATCHLEVEL; - - DRM_COPY(version.name, GAMMA_NAME); - DRM_COPY(version.date, GAMMA_DATE); - DRM_COPY(version.desc, GAMMA_DESC); - - if (copy_to_user((drm_version_t *)arg, - &version, - sizeof(version))) - return -EFAULT; - return 0; -} - -int gamma_open(struct inode *inode, struct file *filp) -{ - drm_device_t *dev = &gamma_device; - int retcode = 0; - - DRM_DEBUG("open_count = %d\n", dev->open_count); - if (!(retcode = drm_open_helper(inode, filp, dev))) { -#if LINUX_VERSION_CODE < 0x020333 - MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */ +#if 0 +#define DRIVER_PRETAKEDOWN() do { \ + if ( dev->dev_private ) gamma_do_cleanup_dma( dev ); \ +} while (0) #endif - atomic_inc(&dev->total_open); - spin_lock(&dev->count_lock); - if (!dev->open_count++) { - spin_unlock(&dev->count_lock); - return gamma_setup(dev); - } - spin_unlock(&dev->count_lock); - } - return retcode; -} - -int gamma_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 (!(retcode = drm_release(inode, filp))) { -#if LINUX_VERSION_CODE < 0x020333 - MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */ -#endif - atomic_inc(&dev->total_close); - 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 gamma_takedown(dev); - } - spin_unlock(&dev->count_lock); - } - unlock_kernel(); - return retcode; -} - -/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */ -int gamma_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - int nr = DRM_IOCTL_NR(cmd); - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - int retcode = 0; - drm_ioctl_desc_t *ioctl; - drm_ioctl_t *func; - - atomic_inc(&dev->ioctl_count); - atomic_inc(&dev->total_ioctl); - ++priv->ioctl_count; - - DRM_DEBUG("pid = %d, cmd = 0x%02x, nr = 0x%02x, dev 0x%x, auth = %d\n", - current->pid, cmd, nr, dev->device, priv->authenticated); - - if (nr >= GAMMA_IOCTL_COUNT) { - retcode = -EINVAL; - } else { - ioctl = &gamma_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); - return retcode; -} - - -int gamma_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 *)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 frees lock (%d holds)\n", - lock.context, - _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); - atomic_inc(&dev->total_unlocks); - if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock)) - atomic_inc(&dev->total_contends); - drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT); - gamma_dma_schedule(dev, 1); - if (!dev->context_flag) { - if (drm_lock_free(dev, &dev->lock.hw_lock->lock, - DRM_KERNEL_CONTEXT)) { - DRM_ERROR("\n"); - } - } -#if DRM_DMA_HISTOGRAM - atomic_inc(&dev->histo.lhld[drm_histogram_slot(get_cycles() - - dev->lck_start)]); -#endif +#include "drm_drv.h" - unblock_all_signals(); - return 0; -} |