diff options
Diffstat (limited to 'bsd/drm_irq.h')
-rw-r--r-- | bsd/drm_irq.h | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/bsd/drm_irq.h b/bsd/drm_irq.h deleted file mode 100644 index eec6ab93..00000000 --- a/bsd/drm_irq.h +++ /dev/null @@ -1,281 +0,0 @@ -/* drm_dma.c -- DMA IOCTL and function support - * Created: Fri Oct 18 2003 by anholt@FreeBSD.org - * - * Copyright 2003 Eric Anholt - * 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: - * Eric Anholt <anholt@FreeBSD.org> - * - */ - -int DRM(irq_by_busid)( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_irq_busid_t irq; - - DRM_COPY_FROM_USER_IOCTL(irq, (drm_irq_busid_t *)data, sizeof(irq)); - - if ((irq.busnum >> 8) != dev->pci_domain || - (irq.busnum & 0xff) != dev->pci_bus || - irq.devnum != dev->pci_slot || - irq.funcnum != dev->pci_func) - return EINVAL; - - irq.irq = dev->irq; - - DRM_DEBUG("%d:%d:%d => IRQ %d\n", - irq.busnum, irq.devnum, irq.funcnum, irq.irq); - - DRM_COPY_TO_USER_IOCTL( (drm_irq_busid_t *)data, irq, sizeof(irq) ); - - return 0; -} - -#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 -static irqreturn_t -DRM(irq_handler_wrap)(DRM_IRQ_ARGS) -{ - drm_device_t *dev = (drm_device_t *)arg; - - DRM_SPINLOCK(&dev->irq_lock); - DRM(irq_handler)(arg); - DRM_SPINUNLOCK(&dev->irq_lock); -} -#endif - -int DRM(irq_install)(drm_device_t *dev) -{ - int retcode; - - if (dev->irq == 0 || dev->dev_private == NULL) - return DRM_ERR(EINVAL); - - DRM_LOCK(); - if (dev->irq_enabled) { - DRM_UNLOCK(); - return DRM_ERR(EBUSY); - } - dev->irq_enabled = 1; - DRM_UNLOCK(); - - DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq ); - - dev->context_flag = 0; - - dev->dma->next_buffer = NULL; - dev->dma->this_buffer = NULL; - -#if __HAVE_IRQ_BH - TASK_INIT(&dev->task, 0, DRM(dma_immediate_bh), dev); -#endif - - DRM_SPININIT(dev->irq_lock, "DRM IRQ lock"); - - /* Before installing handler */ - DRM(driver_irq_preinstall)( dev ); - - /* Install handler */ -#ifdef __FreeBSD__ - dev->irqrid = 0; - dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, - &dev->irqrid, RF_SHAREABLE); - if (!dev->irqr) { - retcode = ENOENT; - goto err; - } -#if __FreeBSD_version < 500000 - retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY, - DRM(irq_handler), dev, &dev->irqh); -#else - retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY | INTR_MPSAFE, - DRM(irq_handler_wrap), dev, &dev->irqh); -#endif - if (retcode != 0) - goto err; -#elif defined(__NetBSD__) - if (pci_intr_map(&dev->pa, &dev->ih) != 0) { - retcode = ENOENT; - goto err; - } - dev->irqh = pci_intr_establish(&dev->pa.pa_pc, dev->ih, IPL_TTY, - (irqreturn_t (*)(DRM_IRQ_ARGS))DRM(irq_handler), dev); - if (!dev->irqh) { - retcode = ENOENT; - goto err; - } -#endif - - /* After installing handler */ - DRM(driver_irq_postinstall)( dev ); - - return 0; -err: - DRM_LOCK(); - dev->irq_enabled = 0; -#ifdef ___FreeBSD__ - if (dev->irqrid != 0) { - bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, - dev->irqr); - dev->irqrid = 0; - } -#endif - DRM_SPINUNINIT(dev->irq_lock); - DRM_UNLOCK(); - return retcode; -} - -/* XXX: This function needs to be called with the device lock held. In some - * cases it isn't, so far. - */ -int DRM(irq_uninstall)( drm_device_t *dev ) -{ - int irqrid; - - if (!dev->irq_enabled) - return DRM_ERR(EINVAL); - - dev->irq_enabled = 0; - irqrid = dev->irqrid; - dev->irqrid = 0; - - DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq ); - - DRM(driver_irq_uninstall)( dev ); - -#ifdef __FreeBSD__ - bus_teardown_intr(dev->device, dev->irqr, dev->irqh); - bus_release_resource(dev->device, SYS_RES_IRQ, irqrid, dev->irqr); -#elif defined(__NetBSD__) - pci_intr_disestablish(&dev->pa.pa_pc, dev->irqh); -#endif - DRM_SPINUNINIT(dev->irq_lock); - - return 0; -} - -int DRM(control)( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_control_t ctl; - int err; - - DRM_COPY_FROM_USER_IOCTL( ctl, (drm_control_t *) data, sizeof(ctl) ); - - switch ( ctl.func ) { - case DRM_INST_HANDLER: - if (dev->if_version < DRM_IF_VERSION(1, 2) && - ctl.irq != dev->irq) - return DRM_ERR(EINVAL); - return DRM(irq_install)(dev); - case DRM_UNINST_HANDLER: - DRM_LOCK(); - err = DRM(irq_uninstall)( dev ); - DRM_UNLOCK(); - return err; - default: - return DRM_ERR(EINVAL); - } -} - -#if __HAVE_VBL_IRQ -int DRM(wait_vblank)( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_wait_vblank_t vblwait; - struct timeval now; - int ret; - - if (!dev->irq_enabled) - return DRM_ERR(EINVAL); - - DRM_COPY_FROM_USER_IOCTL( vblwait, (drm_wait_vblank_t *)data, - sizeof(vblwait) ); - - if (vblwait.request.type & _DRM_VBLANK_RELATIVE) { - vblwait.request.sequence += atomic_read(&dev->vbl_received); - vblwait.request.type &= ~_DRM_VBLANK_RELATIVE; - } - - flags = vblwait.request.type & _DRM_VBLANK_FLAGS_MASK; - if (flags & _DRM_VBLANK_SIGNAL) { -#if 0 /* disabled */ - drm_vbl_sig_t *vbl_sig = DRM_MALLOC(sizeof(drm_vbl_sig_t)); - if (vbl_sig == NULL) - return ENOMEM; - bzero(vbl_sig, sizeof(*vbl_sig)); - - vbl_sig->sequence = vblwait.request.sequence; - vbl_sig->signo = vblwait.request.signal; - vbl_sig->pid = DRM_CURRENTPID; - - vblwait.reply.sequence = atomic_read(&dev->vbl_received); - - DRM_SPINLOCK(&dev->irq_lock); - TAILQ_INSERT_HEAD(&dev->vbl_sig_list, vbl_sig, link); - DRM_SPINUNLOCK(&dev->irq_lock); - ret = 0; -#endif - ret = EINVAL; - } else { - ret = DRM(vblank_wait)(dev, &vblwait.request.sequence); - - microtime(&now); - vblwait.reply.tval_sec = now.tv_sec; - vblwait.reply.tval_usec = now.tv_usec; - } - - DRM_COPY_TO_USER_IOCTL( (drm_wait_vblank_t *)data, vblwait, - sizeof(vblwait) ); - - return ret; -} - -void DRM(vbl_send_signals)(drm_device_t *dev) -{ -} - -#if 0 /* disabled */ -void DRM(vbl_send_signals)( drm_device_t *dev ) -{ - drm_vbl_sig_t *vbl_sig; - unsigned int vbl_seq = atomic_read( &dev->vbl_received ); - struct proc *p; - - vbl_sig = TAILQ_FIRST(&dev->vbl_sig_list); - while (vbl_sig != NULL) { - drm_vbl_sig_t *next = TAILQ_NEXT(vbl_sig, link); - - if ( ( vbl_seq - vbl_sig->sequence ) <= (1<<23) ) { - p = pfind(vbl_sig->pid); - if (p != NULL) - psignal(p, vbl_sig->signo); - - TAILQ_REMOVE(&dev->vbl_sig_list, vbl_sig, link); - DRM_FREE(vbl_sig,sizeof(*vbl_sig)); - } - vbl_sig = next; - } -} -#endif - -#endif /* __HAVE_VBL_IRQ */ |