From fa0a35a25fd008617ef6c7444cb92b138dd01859 Mon Sep 17 00:00:00 2001 From: Doug Rabson Date: Tue, 30 May 2000 17:13:31 +0000 Subject: Merged bsd-1-0-0 --- bsd/gamma/gamma_drv.c | 574 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 574 insertions(+) create mode 100644 bsd/gamma/gamma_drv.c (limited to 'bsd/gamma/gamma_drv.c') diff --git a/bsd/gamma/gamma_drv.c b/bsd/gamma/gamma_drv.c new file mode 100644 index 00000000..fe71737a --- /dev/null +++ b/bsd/gamma/gamma_drv.c @@ -0,0 +1,574 @@ +/* gamma.c -- 3dlabs GMX 2000 driver -*- c -*- + * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com + * Revised: Tue Oct 12 08:51:36 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * 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 + * PRECISION INSIGHT 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. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/gamma_drv.c,v 1.17 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/gamma_drv.c,v 1.1 1999/09/25 14:38:00 dawes Exp $ + * + */ + +#include "drmP.h" +#include "gamma_drv.h" + +#include + +MODULE_DEPEND(gamma, drm, 1, 1, 1); + +static int gamma_init(device_t nbdev); +static void gamma_cleanup(device_t nbdev); + +static int gamma_probe(device_t dev) +{ + const char *s = 0; + + switch (pci_get_devid(dev)) { + case 0x00083d3d: + s = "3D Labs Gamma graphics accelerator"; + break; + } + + if (s) { + device_set_desc(dev, s); + return 0; + } + + return ENXIO; +} + +static int gamma_attach(device_t dev) +{ + gamma_init(dev); + return 0; +} + +static int gamma_detach(device_t dev) +{ + gamma_cleanup(dev); + return 0; +} + +static device_method_t gamma_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, gamma_probe), + DEVMETHOD(device_attach, gamma_attach), + DEVMETHOD(device_detach, gamma_detach), + + { 0, 0 } +}; + +static driver_t gamma_driver = { + "drm", + gamma_methods, + sizeof(drm_device_t), +}; + +static devclass_t gamma_devclass; +#define GAMMA_SOFTC(unit) \ + ((drm_device_t *) devclass_get_softc(gamma_devclass, unit)) + +DRIVER_MODULE(if_gamma, pci, gamma_driver, gamma_devclass, 0, 0); + +#define GAMMA_NAME "gamma" +#define GAMMA_DESC "3dlabs GMX 2000" +#define GAMMA_DATE "19990830" +#define GAMMA_MAJOR 0 +#define GAMMA_MINOR 0 +#define GAMMA_PATCHLEVEL 5 + +#define CDEV_MAJOR 200 + +static struct cdevsw gamma_cdevsw = { + /* open */ gamma_open, + /* close */ gamma_close, + /* read */ drm_read, + /* write */ drm_write, + /* ioctl */ gamma_ioctl, + /* poll */ nopoll, + /* mmap */ drm_mmap, + /* strategy */ nostrategy, + /* name */ "gamma", + /* maj */ CDEV_MAJOR, + /* dump */ nodump, + /* psize */ nopsize, + /* flags */ D_TTY | D_TRACKCLOSE, + /* bmaj */ -1 +}; + +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) + +static int gamma_setup(drm_device_t *dev) +{ + int i; + + device_busy(dev->device); + + 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; + dev->lock.lock_queue = 0; + 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; + callout_init(&dev->timer); + dev->context_wait = 0; +#if DRM_DMA_HISTO + memset(&dev->histo, 0, sizeof(dev->histo)); +#endif + timespecclear(&dev->ctx_start); + timespecclear(&dev->lck_start); + + dev->buf_rp = dev->buf; + dev->buf_wp = dev->buf; + dev->buf_end = dev->buf + DRM_BSZ; + dev->buf_sigio = NULL; + + 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); + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + callout_stop(&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; + } + 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; + wakeup(&dev->lock.lock_queue); + } + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + device_unbusy(dev->device); + + return 0; +} + +/* gamma_init is called via gamma_attach at module load time */ + +static int +gamma_init(device_t nbdev) +{ + drm_device_t *dev = device_get_softc(nbdev); + + DRM_DEBUG("\n"); + + memset((void *)dev, 0, sizeof(*dev)); + simple_lock_init(&dev->count_lock); + lockinit(&dev->dev_lock, PZERO, "drmlk", 0, 0); + +#if 0 /* XXX use getenv I guess */ + drm_parse_options(gamma); +#endif + +#if 0 + if ((retcode = misc_register(&gamma_misc))) { + DRM_ERROR("Cannot register \"%s\"\n", GAMMA_NAME); + return retcode; + } +#endif + dev->device = nbdev; + dev->devnode = make_dev(&gamma_cdevsw, + device_get_unit(nbdev), + DRM_DEV_UID, + DRM_DEV_GID, + DRM_DEV_MODE, + GAMMA_NAME); + dev->name = GAMMA_NAME; + + drm_mem_init(); + drm_sysctl_init(dev); + + DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", + GAMMA_NAME, + GAMMA_MAJOR, + GAMMA_MINOR, + GAMMA_PATCHLEVEL, + GAMMA_DATE, + device_get_unit(nbdev)); + + return 0; +} + +/* gamma_cleanup is called via gamma_detach at module unload time. */ + +static void +gamma_cleanup(device_t nbdev) +{ + drm_device_t *dev = device_get_softc(nbdev); + + DRM_DEBUG("\n"); + + drm_sysctl_cleanup(dev); +#if 0 + if (misc_deregister(&gamma_misc)) { + DRM_ERROR("Cannot unload module\n"); + } else { + DRM_INFO("Module unloaded\n"); + } +#endif + device_busy(dev->device); + gamma_takedown(dev); +} + +SYSUNINIT(gamma_cleanup, SI_SUB_DRIVERS, SI_ORDER_ANY, gamma_cleanup, 0); + +#if 0 +int gamma_version(struct inode *inode, struct file *filp, unsigned int cmd, + unsigned long arg) +{ + drm_version_t version; + int len; + + copy_from_user_ret(&version, + (drm_version_t *)arg, + sizeof(version), + -EFAULT); + +#define DRM_COPY(name,value) \ + len = strlen(value); \ + if (len > name##_len) len = name##_len; \ + name##_len = strlen(value); \ + if (len && name) { \ + copy_to_user_ret(name, value, len, -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); + + copy_to_user_ret((drm_version_t *)arg, + &version, + sizeof(version), + -EFAULT); + return 0; +} +#endif + +int +gamma_open(dev_t kdev, int flags, int fmt, struct proc *p) +{ + drm_device_t *dev = GAMMA_SOFTC(minor(kdev)); + int retcode = 0; + + DRM_DEBUG("open_count = %d\n", dev->open_count); + + device_busy(dev->device); + if (!(retcode = drm_open_helper(kdev, flags, fmt, p, dev))) { + atomic_inc(&dev->total_open); + simple_lock(&dev->count_lock); + if (!dev->open_count++) { + simple_unlock(&dev->count_lock); + retcode = gamma_setup(dev); + } + simple_unlock(&dev->count_lock); + } + device_unbusy(dev->device); + + return retcode; +} + +int +gamma_close(dev_t kdev, int flags, int fmt, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + int retcode = 0; + + DRM_DEBUG("open_count = %d\n", dev->open_count); + if (!(retcode = drm_close(kdev, flags, fmt, p))) { + atomic_inc(&dev->total_close); + simple_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); + simple_unlock(&dev->count_lock); + return EBUSY; + } + simple_unlock(&dev->count_lock); + return gamma_takedown(dev); + } + simple_unlock(&dev->count_lock); + } + return retcode; +} + +/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */ + +int +gamma_ioctl(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + int nr = DRM_IOCTL_NR(cmd); + drm_device_t *dev = kdev->si_drv1; + drm_file_t *priv; + int retcode = 0; + drm_ioctl_desc_t *ioctl; + d_ioctl_t *func; + + priv = drm_find_file_by_proc(dev, p); + if (!priv) { + DRM_DEBUG("can't find authenticator\n"); + return EINVAL; + } + + atomic_inc(&dev->ioctl_count); + atomic_inc(&dev->total_ioctl); + ++priv->ioctl_count; + + DRM_DEBUG("pid = %d, cmd = 0x%02lx, nr = 0x%02x, auth = %d\n", + p->p_pid, cmd, nr, priv->authenticated); + + switch (cmd) { + case FIOSETOWN: + return fsetown(*(int *)data, &dev->buf_sigio); + + case FIOGETOWN: + *(int *) data = fgetown(dev->buf_sigio); + return 0; + } + + 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 && suser(p)) + || (ioctl->auth_needed && !priv->authenticated)) { + retcode = EACCES; + } else { + retcode = (func)(kdev, cmd, data, flags, p); + } + } + + atomic_dec(&dev->ioctl_count); + return retcode; +} + +int gamma_unlock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_lock_t *lockp = (drm_lock_t *) data; + + if (lockp->context == DRM_KERNEL_CONTEXT) { + DRM_ERROR("Process %d using kernel context %d\n", + p->p_pid, lockp->context); + return -EINVAL; + } + + DRM_DEBUG("%d frees lock (%d holds)\n", + lockp->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 + { + struct timespec ts; + getnanotime(&ts); + timespecsub(&ts, &dev->lck_start); + atomic_inc(&dev->histo.lhld[drm_histogram_slot(&ts)]); + } +#endif + + return 0; +} -- cgit v1.2.3