From 9dd3613073aa2491cef440725fdfa0cf1e8f1a42 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= Date: Tue, 17 Nov 2009 09:46:56 -0500 Subject: Drop shared-core, bsd-core, linux-core and scripts subdirs --- bsd-core/drm_irq.c | 499 ----------------------------------------------------- 1 file changed, 499 deletions(-) delete mode 100644 bsd-core/drm_irq.c (limited to 'bsd-core/drm_irq.c') diff --git a/bsd-core/drm_irq.c b/bsd-core/drm_irq.c deleted file mode 100644 index 2ca4275e..00000000 --- a/bsd-core/drm_irq.c +++ /dev/null @@ -1,499 +0,0 @@ -/*- - * 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 - * ERIC ANHOLT 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 - * - */ - -/** @file drm_irq.c - * Support code for handling setup/teardown of interrupt handlers and - * handing interrupt handlers off to the drivers. - */ - -#include "drmP.h" -#include "drm.h" - -int drm_irq_by_busid(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_irq_busid *irq = data; - - 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); - - return 0; -} - -static irqreturn_t -drm_irq_handler_wrap(DRM_IRQ_ARGS) -{ - struct drm_device *dev = arg; - - DRM_SPINLOCK(&dev->irq_lock); - dev->driver->irq_handler(arg); - DRM_SPINUNLOCK(&dev->irq_lock); -} - -static void vblank_disable_fn(void *arg) -{ - struct drm_device *dev = (struct drm_device *)arg; - int i; - - if (callout_pending(&dev->vblank_disable_timer)) { - /* callout was reset */ - return; - } - if (!callout_active(&dev->vblank_disable_timer)) { - /* callout was stopped */ - return; - } - callout_deactivate(&dev->vblank_disable_timer); - - DRM_DEBUG("vblank_disable_allowed=%d\n", dev->vblank_disable_allowed); - if (!dev->vblank_disable_allowed) - return; - - for (i = 0; i < dev->num_crtcs; i++) { - if (atomic_read(&dev->vblank[i].refcount) == 0 && - dev->vblank[i].enabled) { - DRM_DEBUG("disabling vblank on crtc %d\n", i); - dev->vblank[i].last = - dev->driver->get_vblank_counter(dev, i); - dev->driver->disable_vblank(dev, i); - dev->vblank[i].enabled = 0; - } - } -} - -void drm_vblank_cleanup(struct drm_device *dev) -{ - unsigned long irqflags; - - /* Bail if the driver didn't call drm_vblank_init() */ - if (dev->num_crtcs == 0) - return; - - DRM_SPINLOCK_IRQSAVE(&dev->vbl_lock, irqflags); - callout_stop(&dev->vblank_disable_timer); - DRM_SPINUNLOCK_IRQRESTORE(&dev->vbl_lock, irqflags); - - callout_drain(&dev->vblank_disable_timer); - - vblank_disable_fn((void *)dev); - - free(dev->vblank, DRM_MEM_DRIVER); - - dev->num_crtcs = 0; -} - -int drm_vblank_init(struct drm_device *dev, int num_crtcs) -{ - int i, ret = ENOMEM; - - callout_init_mtx(&dev->vblank_disable_timer, &dev->vbl_lock, 0); - atomic_set(&dev->vbl_signal_pending, 0); - dev->num_crtcs = num_crtcs; - - dev->vblank = malloc(sizeof(struct drm_vblank_info) * num_crtcs, - DRM_MEM_DRIVER, M_NOWAIT | M_ZERO); - if (!dev->vblank) - goto err; - - DRM_DEBUG("\n"); - - /* Zero per-crtc vblank stuff */ - for (i = 0; i < num_crtcs; i++) { - DRM_INIT_WAITQUEUE(&dev->vblank[i].queue); - TAILQ_INIT(&dev->vblank[i].sigs); - atomic_set(&dev->vblank[i].count, 0); - atomic_set(&dev->vblank[i].refcount, 0); - } - - dev->vblank_disable_allowed = 0; - - return 0; - -err: - drm_vblank_cleanup(dev); - return ret; -} - -int drm_irq_install(struct drm_device *dev) -{ - int retcode; - - if (dev->irq == 0 || dev->dev_private == NULL) - return EINVAL; - - DRM_DEBUG("irq=%d\n", dev->irq); - - DRM_LOCK(); - if (dev->irq_enabled) { - DRM_UNLOCK(); - return EBUSY; - } - dev->irq_enabled = 1; - - dev->context_flag = 0; - - /* Before installing handler */ - dev->driver->irq_preinstall(dev); - DRM_UNLOCK(); - - /* Install handler */ -#if __FreeBSD_version >= 700031 - retcode = bus_setup_intr(dev->device, dev->irqr, - INTR_TYPE_TTY | INTR_MPSAFE, - NULL, drm_irq_handler_wrap, 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; - - /* After installing handler */ - DRM_LOCK(); - dev->driver->irq_postinstall(dev); - DRM_UNLOCK(); - - return 0; -err: - DRM_LOCK(); - dev->irq_enabled = 0; - DRM_UNLOCK(); - - return retcode; -} - -int drm_irq_uninstall(struct drm_device *dev) -{ - if (!dev->irq_enabled) - return EINVAL; - - dev->irq_enabled = 0; - - DRM_DEBUG("irq=%d\n", dev->irq); - - dev->driver->irq_uninstall(dev); - - DRM_UNLOCK(); - bus_teardown_intr(dev->device, dev->irqr, dev->irqh); - DRM_LOCK(); - - return 0; -} - -int drm_control(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_control *ctl = data; - int err; - - switch (ctl->func) { - case DRM_INST_HANDLER: - /* Handle drivers whose DRM used to require IRQ setup but the - * no longer does. - */ - if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) - return 0; - if (dev->if_version < DRM_IF_VERSION(1, 2) && - ctl->irq != dev->irq) - return EINVAL; - return drm_irq_install(dev); - case DRM_UNINST_HANDLER: - if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) - return 0; - DRM_LOCK(); - err = drm_irq_uninstall(dev); - DRM_UNLOCK(); - return err; - default: - return EINVAL; - } -} - -u32 drm_vblank_count(struct drm_device *dev, int crtc) -{ - return atomic_read(&dev->vblank[crtc].count); -} - -static void drm_update_vblank_count(struct drm_device *dev, int crtc) -{ - u32 cur_vblank, diff; - - /* - * Interrupts were disabled prior to this call, so deal with counter - * wrap if needed. - * NOTE! It's possible we lost a full dev->max_vblank_count events - * here if the register is small or we had vblank interrupts off for - * a long time. - */ - cur_vblank = dev->driver->get_vblank_counter(dev, crtc); - diff = cur_vblank - dev->vblank[crtc].last; - if (cur_vblank < dev->vblank[crtc].last) { - diff += dev->max_vblank_count; - - DRM_DEBUG("vblank[%d].last=0x%x, cur_vblank=0x%x => diff=0x%x\n", - crtc, dev->vblank[crtc].last, cur_vblank, diff); - } - - DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n", - crtc, diff); - - atomic_add(diff, &dev->vblank[crtc].count); -} - -int drm_vblank_get(struct drm_device *dev, int crtc) -{ - unsigned long irqflags; - int ret = 0; - - DRM_SPINLOCK_IRQSAVE(&dev->vbl_lock, irqflags); - /* Going from 0->1 means we have to enable interrupts again */ - atomic_add_acq_int(&dev->vblank[crtc].refcount, 1); - DRM_DEBUG("vblank refcount = %d\n", dev->vblank[crtc].refcount); - if (dev->vblank[crtc].refcount == 1 && - !dev->vblank[crtc].enabled) { - ret = dev->driver->enable_vblank(dev, crtc); - if (ret) - atomic_dec(&dev->vblank[crtc].refcount); - else { - dev->vblank[crtc].enabled = 1; - drm_update_vblank_count(dev, crtc); - } - } - DRM_SPINUNLOCK_IRQRESTORE(&dev->vbl_lock, irqflags); - - return ret; -} - -void drm_vblank_put(struct drm_device *dev, int crtc) -{ - unsigned long irqflags; - - DRM_SPINLOCK_IRQSAVE(&dev->vbl_lock, irqflags); - /* Last user schedules interrupt disable */ - atomic_subtract_acq_int(&dev->vblank[crtc].refcount, 1); - DRM_DEBUG("vblank refcount = %d\n", dev->vblank[crtc].refcount); - if (dev->vblank[crtc].refcount == 0) - callout_reset(&dev->vblank_disable_timer, 5 * DRM_HZ, - (timeout_t *)vblank_disable_fn, (void *)dev); - DRM_SPINUNLOCK_IRQRESTORE(&dev->vbl_lock, irqflags); -} - -int drm_modeset_ctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_modeset_ctl *modeset = data; - unsigned long irqflags; - int crtc, ret = 0; - - DRM_DEBUG("num_crtcs=%d\n", dev->num_crtcs); - /* If drm_vblank_init() hasn't been called yet, just no-op */ - if (!dev->num_crtcs) - goto out; - - crtc = modeset->crtc; - DRM_DEBUG("crtc=%d\n", crtc); - if (crtc >= dev->num_crtcs) { - ret = EINVAL; - goto out; - } - - /* - * To avoid all the problems that might happen if interrupts - * were enabled/disabled around or between these calls, we just - * have the kernel take a reference on the CRTC (just once though - * to avoid corrupting the count if multiple, mismatch calls occur), - * so that interrupts remain enabled in the interim. - */ - switch (modeset->cmd) { - case _DRM_PRE_MODESET: - DRM_DEBUG("pre-modeset\n"); - if (!dev->vblank[crtc].inmodeset) { - dev->vblank[crtc].inmodeset = 1; - drm_vblank_get(dev, crtc); - } - break; - case _DRM_POST_MODESET: - DRM_DEBUG("post-modeset\n"); - if (dev->vblank[crtc].inmodeset) { - DRM_SPINLOCK_IRQSAVE(&dev->vbl_lock, irqflags); - dev->vblank_disable_allowed = 1; - dev->vblank[crtc].inmodeset = 0; - DRM_SPINUNLOCK_IRQRESTORE(&dev->vbl_lock, irqflags); - drm_vblank_put(dev, crtc); - } - break; - default: - ret = EINVAL; - break; - } - -out: - return ret; -} - -int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - union drm_wait_vblank *vblwait = data; - unsigned int flags, seq, crtc; - int ret = 0; - - if (!dev->irq_enabled) - return EINVAL; - - if (vblwait->request.type & - ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) { - DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n", - vblwait->request.type, - (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)); - return EINVAL; - } - - flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK; - crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0; - - if (crtc >= dev->num_crtcs) - return EINVAL; - - ret = drm_vblank_get(dev, crtc); - if (ret) { - DRM_ERROR("failed to acquire vblank counter, %d\n", ret); - return ret; - } - seq = drm_vblank_count(dev, crtc); - - switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) { - case _DRM_VBLANK_RELATIVE: - vblwait->request.sequence += seq; - vblwait->request.type &= ~_DRM_VBLANK_RELATIVE; - case _DRM_VBLANK_ABSOLUTE: - break; - default: - ret = EINVAL; - goto done; - } - - if ((flags & _DRM_VBLANK_NEXTONMISS) && - (seq - vblwait->request.sequence) <= (1<<23)) { - vblwait->request.sequence = seq + 1; - } - - if (flags & _DRM_VBLANK_SIGNAL) { -#if 0 /* disabled */ - drm_vbl_sig_t *vbl_sig = malloc(sizeof(drm_vbl_sig_t), - DRM_MEM_DRIVER, M_NOWAIT | M_ZERO); - if (vbl_sig == NULL) - return ENOMEM; - - 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 { - DRM_DEBUG("waiting on vblank count %d, crtc %d\n", - vblwait->request.sequence, crtc); - for ( ret = 0 ; !ret && !((drm_vblank_count(dev, crtc) - - vblwait->request.sequence) <= (1 << 23)) ; ) { - mtx_lock(&dev->irq_lock); - if (!((drm_vblank_count(dev, crtc) - - vblwait->request.sequence) <= (1 << 23))) - ret = mtx_sleep(&dev->vblank[crtc].queue, - &dev->irq_lock, PCATCH, "vblwtq", - 3 * DRM_HZ); - mtx_unlock(&dev->irq_lock); - } - - DRM_DEBUG("return = %d\n", ret); - if (ret != EINTR) { - struct timeval now; - - microtime(&now); - vblwait->reply.tval_sec = now.tv_sec; - vblwait->reply.tval_usec = now.tv_usec; - vblwait->reply.sequence = drm_vblank_count(dev, crtc); - DRM_DEBUG("returning %d to client\n", - vblwait->reply.sequence); - } else { - DRM_DEBUG("vblank wait interrupted by signal\n"); - } - } - -done: - drm_vblank_put(dev, crtc); - return ret; -} - -void drm_vbl_send_signals(struct drm_device *dev, int crtc) -{ -} - -#if 0 /* disabled */ -void drm_vbl_send_signals(struct drm_device *dev, int crtc ) -{ - 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 - -void drm_handle_vblank(struct drm_device *dev, int crtc) -{ - atomic_inc(&dev->vblank[crtc].count); - DRM_WAKEUP(&dev->vblank[crtc].queue); - drm_vbl_send_signals(dev, crtc); -} - -- cgit v1.2.3