diff options
Diffstat (limited to 'bsd/drm_dma.h')
| -rw-r--r-- | bsd/drm_dma.h | 227 |
1 files changed, 6 insertions, 221 deletions
diff --git a/bsd/drm_dma.h b/bsd/drm_dma.h index 6c502efb..877fd4e1 100644 --- a/bsd/drm_dma.h +++ b/bsd/drm_dma.h @@ -149,224 +149,11 @@ void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp) } #endif - -#if __HAVE_DMA_IRQ - -int DRM(irq_install)( drm_device_t *dev, int irq ) -{ - int retcode; - - if ( irq == 0 || dev->dev_private == NULL) - return DRM_ERR(EINVAL); - - DRM_LOCK(); - if ( dev->irq ) { - DRM_UNLOCK(); - return DRM_ERR(EBUSY); - } - dev->irq = irq; - DRM_UNLOCK(); - - DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq ); - - dev->context_flag = 0; - - dev->dma->next_buffer = NULL; - dev->dma->this_buffer = NULL; - -#if __HAVE_DMA_IRQ_BH - TASK_INIT(&dev->task, 0, DRM(dma_immediate_bh), dev); -#endif - -#if __HAVE_VBL_IRQ && 0 /* disabled */ - DRM_SPININIT( dev->vbl_lock, "vblsig" ); - TAILQ_INIT( &dev->vbl_sig_list ); -#endif - - /* Before installing handler */ - DRM(driver_irq_preinstall)( dev ); - - /* Install handler */ - dev->irqrid = 0; -#ifdef __FreeBSD__ - dev->irqr = bus_alloc_resource(dev->device, SYS_RES_IRQ, &dev->irqrid, - 0, ~0, 1, RF_SHAREABLE); - if (!dev->irqr) { -#elif defined(__NetBSD__) - if (pci_intr_map(&dev->pa, &dev->ih) != 0) { -#endif - DRM_LOCK(); - dev->irq = 0; - dev->irqrid = 0; - DRM_UNLOCK(); - return ENOENT; - } - -#ifdef __FreeBSD__ -#if __FreeBSD_version < 500000 - retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY, - DRM(dma_service), dev, &dev->irqh); -#else - retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY | INTR_MPSAFE, - DRM(dma_service), dev, &dev->irqh); -#endif - if ( retcode ) { -#elif defined(__NetBSD__) - dev->irqh = pci_intr_establish(&dev->pa.pa_pc, dev->ih, IPL_TTY, - (irqreturn_t (*)(DRM_IRQ_ARGS))DRM(dma_service), dev); - if ( !dev->irqh ) { -#endif - DRM_LOCK(); -#ifdef __FreeBSD__ - bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, dev->irqr); -#endif - dev->irq = 0; - dev->irqrid = 0; - DRM_UNLOCK(); - return retcode; - } - - /* After installing handler */ - DRM(driver_irq_postinstall)( dev ); - - return 0; -} - -int DRM(irq_uninstall)( drm_device_t *dev ) -{ - int irq; - int irqrid; - - DRM_LOCK(); - irq = dev->irq; - irqrid = dev->irqrid; - dev->irq = 0; - dev->irqrid = 0; - DRM_UNLOCK(); - - if ( !irq ) - return DRM_ERR(EINVAL); - - DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, 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 - - return 0; -} - -int DRM(control)( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_control_t ctl; - - DRM_COPY_FROM_USER_IOCTL( ctl, (drm_control_t *) data, sizeof(ctl) ); - - switch ( ctl.func ) { - case DRM_INST_HANDLER: - return DRM(irq_install)( dev, ctl.irq ); - case DRM_UNINST_HANDLER: - return DRM(irq_uninstall)( dev ); - 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) - 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->vbl_lock); - TAILQ_INSERT_HEAD(&dev->vbl_sig_list, vbl_sig, link); - DRM_SPINUNLOCK(&dev->vbl_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; - - DRM_SPINLOCK(&dev->vbl_lock); - - 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; - } - - DRM_SPINUNLOCK(&dev->vbl_lock); -} -#endif - -#endif /* __HAVE_VBL_IRQ */ - -#else - +#if !__HAVE_IRQ +/* This stub DRM_IOCTL_CONTROL handler is for the drivers that used to require + * IRQs for DMA but no longer do. It maintains compatibility with the X Servers + * that try to use the control ioctl by simply returning success. + */ int DRM(control)( DRM_IOCTL_ARGS ) { drm_control_t ctl; @@ -381,8 +168,6 @@ int DRM(control)( DRM_IOCTL_ARGS ) return DRM_ERR(EINVAL); } } - -#endif /* __HAVE_DMA_IRQ */ +#endif #endif /* __HAVE_DMA */ - |