diff options
Diffstat (limited to 'drivers/char')
34 files changed, 695 insertions, 1439 deletions
diff --git a/drivers/char/drm/drm.h b/drivers/char/drm/drm.h index 6874f31..3a05c6d 100644 --- a/drivers/char/drm/drm.h +++ b/drivers/char/drm/drm.h @@ -471,7 +471,6 @@ struct drm_irq_busid { enum drm_vblank_seq_type { _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ - _DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */ @@ -504,21 +503,6 @@ union drm_wait_vblank { struct drm_wait_vblank_reply reply; }; -enum drm_modeset_ctl_cmd { - _DRM_PRE_MODESET = 1, - _DRM_POST_MODESET = 2, -}; - -/** - * DRM_IOCTL_MODESET_CTL ioctl argument type - * - * \sa drmModesetCtl(). - */ -struct drm_modeset_ctl { - unsigned long arg; - enum drm_modeset_ctl_cmd cmd; -}; - /** * DRM_IOCTL_AGP_ENABLE ioctl argument type. * @@ -603,7 +587,6 @@ struct drm_set_version { #define DRM_IOCTL_GET_CLIENT DRM_IOWR(0x05, struct drm_client) #define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, struct drm_stats) #define DRM_IOCTL_SET_VERSION DRM_IOWR(0x07, struct drm_set_version) -#define DRM_IOCTL_MODESET_CTL DRM_IOW(0x08, struct drm_modeset_ctl) #define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, struct drm_unique) #define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, struct drm_auth) diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h index 213b3ca..0764b66 100644 --- a/drivers/char/drm/drmP.h +++ b/drivers/char/drm/drmP.h @@ -100,8 +100,10 @@ struct drm_device; #define DRIVER_HAVE_DMA 0x20 #define DRIVER_HAVE_IRQ 0x40 #define DRIVER_IRQ_SHARED 0x80 +#define DRIVER_IRQ_VBL 0x100 #define DRIVER_DMA_QUEUE 0x200 #define DRIVER_FB_DMA 0x400 +#define DRIVER_IRQ_VBL2 0x800 /***********************************************************************/ /** \name Begin the DRM... */ @@ -577,52 +579,10 @@ struct drm_driver { int (*context_dtor) (struct drm_device *dev, int context); int (*kernel_context_switch) (struct drm_device *dev, int old, int new); - void (*kernel_context_switch_unlock) (struct drm_device * dev); - /** - * get_vblank_counter - get raw hardware vblank counter - * @dev: DRM device - * @crtc: counter to fetch - * - * Driver callback for fetching a raw hardware vblank counter - * for @crtc. If a device doesn't have a hardware counter, the - * driver can simply return the value of drm_vblank_count and - * make the enable_vblank() and disable_vblank() hooks into no-ops, - * leaving interrupts enabled at all times. - * - * Wraparound handling and loss of events due to modesetting is dealt - * with in the DRM core code. - * - * RETURNS - * Raw vblank counter value. - */ - u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); - - /** - * enable_vblank - enable vblank interrupt events - * @dev: DRM device - * @crtc: which irq to enable - * - * Enable vblank interrupts for @crtc. If the device doesn't have - * a hardware vblank counter, this routine should be a no-op, since - * interrupts will have to stay on to keep the count accurate. - * - * RETURNS - * Zero on success, appropriate errno if the given @crtc's vblank - * interrupt cannot be enabled. - */ - int (*enable_vblank) (struct drm_device *dev, int crtc); - - /** - * disable_vblank - disable vblank interrupt events - * @dev: DRM device - * @crtc: which irq to enable - * - * Disable vblank interrupts for @crtc. If the device doesn't have - * a hardware vblank counter, this routine should be a no-op, since - * interrupts will have to stay on to keep the count accurate. - */ - void (*disable_vblank) (struct drm_device *dev, int crtc); - int (*dri_library_name) (struct drm_device *dev, char * buf); + void (*kernel_context_switch_unlock) (struct drm_device *dev); + int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence); + int (*vblank_wait2) (struct drm_device *dev, unsigned int *sequence); + int (*dri_library_name) (struct drm_device *dev, char *buf); /** * Called by \c drm_device_is_agp. Typically used to determine if a @@ -641,7 +601,7 @@ struct drm_driver { irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); void (*irq_preinstall) (struct drm_device *dev); - int (*irq_postinstall) (struct drm_device *dev); + void (*irq_postinstall) (struct drm_device *dev); void (*irq_uninstall) (struct drm_device *dev); void (*reclaim_buffers) (struct drm_device *dev, struct drm_file * file_priv); @@ -770,21 +730,13 @@ struct drm_device { /** \name VBLANK IRQ support */ /*@{ */ - wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ - atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ + wait_queue_head_t vbl_queue; /**< VBLANK wait queue */ + atomic_t vbl_received; + atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */ spinlock_t vbl_lock; - struct list_head *vbl_sigs; /**< signal list to send on VBLANK */ - atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/ - atomic_t *vblank_refcount; /* number of users of vblank interrupts per crtc */ - u32 *last_vblank; /* protected by dev->vbl_lock, used */ - /* for wraparound handling */ - u32 *vblank_offset; /* used to track how many vblanks */ - int *vblank_enabled; /* so we don't call enable more than - once per disable */ - u32 *vblank_premodeset; /* were lost during modeset */ - struct timer_list vblank_disable_timer; - - unsigned long max_vblank_count; /**< size of vblank counter register */ + struct list_head vbl_sigs; /**< signal list to send on VBLANK */ + struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */ + unsigned int vbl_pending; spinlock_t tasklet_lock; /**< For drm_locked_tasklet */ void (*locked_tasklet_func)(struct drm_device *dev); @@ -804,7 +756,6 @@ struct drm_device { #ifdef __alpha__ struct pci_controller *hose; #endif - int num_crtcs; /**< Number of CRTCs on this device */ struct drm_sg_mem *sg; /**< Scatter gather memory */ void *dev_private; /**< device private data */ struct drm_sigdata sigdata; /**< For block_all_signals */ @@ -1039,19 +990,11 @@ extern void drm_driver_irq_preinstall(struct drm_device *dev); extern void drm_driver_irq_postinstall(struct drm_device *dev); extern void drm_driver_irq_uninstall(struct drm_device *dev); -extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); -extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp); -extern int drm_vblank_wait(struct drm_device * dev, unsigned int *vbl_seq); -extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); -extern u32 drm_vblank_count(struct drm_device *dev, int crtc); -extern void drm_update_vblank_count(struct drm_device *dev, int crtc); -extern void drm_handle_vblank(struct drm_device *dev, int crtc); -extern int drm_vblank_get(struct drm_device *dev, int crtc); -extern void drm_vblank_put(struct drm_device *dev, int crtc); - - /* Modesetting support */ -extern int drm_modeset_ctl(struct drm_device *dev, void *data, +extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); +extern void drm_vbl_send_signals(struct drm_device *dev); +extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); /* AGP/GART support (drm_agpsupport.h) */ extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c index 68f0da8..d2e6da8 100644 --- a/drivers/char/drm/drm_fops.c +++ b/drivers/char/drm/drm_fops.c @@ -323,7 +323,6 @@ int drm_release(struct inode *inode, struct file *filp) struct drm_file *file_priv = filp->private_data; struct drm_device *dev = file_priv->minor->dev; int retcode = 0; - unsigned long irqflags; lock_kernel(); @@ -355,11 +354,9 @@ int drm_release(struct inode *inode, struct file *filp) */ do{ - spin_lock_irqsave(&dev->lock.spinlock, - irqflags); + spin_lock_bh(&dev->lock.spinlock); locked = dev->lock.idle_has_lock; - spin_unlock_irqrestore(&dev->lock.spinlock, - irqflags); + spin_unlock_bh(&dev->lock.spinlock); if (locked) break; schedule(); diff --git a/drivers/char/drm/drm_irq.c b/drivers/char/drm/drm_irq.c index 286f9d6..089c015 100644 --- a/drivers/char/drm/drm_irq.c +++ b/drivers/char/drm/drm_irq.c @@ -71,117 +71,6 @@ int drm_irq_by_busid(struct drm_device *dev, void *data, return 0; } -static void vblank_disable_fn(unsigned long arg) -{ - struct drm_device *dev = (struct drm_device *)arg; - unsigned long irqflags; - int i; - - for (i = 0; i < dev->num_crtcs; i++) { - spin_lock_irqsave(&dev->vbl_lock, irqflags); - if (atomic_read(&dev->vblank_refcount[i]) == 0 && - dev->vblank_enabled[i]) { - dev->driver->disable_vblank(dev, i); - dev->vblank_enabled[i] = 0; - } - spin_unlock_irqrestore(&dev->vbl_lock, irqflags); - } -} - -static void drm_vblank_cleanup(struct drm_device *dev) -{ - /* Bail if the driver didn't call drm_vblank_init() */ - if (dev->num_crtcs == 0) - return; - - del_timer(&dev->vblank_disable_timer); - - vblank_disable_fn((unsigned long)dev); - - drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * dev->num_crtcs, - DRM_MEM_DRIVER); - drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * dev->num_crtcs, - DRM_MEM_DRIVER); - drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) * - dev->num_crtcs, DRM_MEM_DRIVER); - drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) * - dev->num_crtcs, DRM_MEM_DRIVER); - drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) * - dev->num_crtcs, DRM_MEM_DRIVER); - drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * dev->num_crtcs, - DRM_MEM_DRIVER); - drm_free(dev->vblank_premodeset, sizeof(*dev->vblank_premodeset) * - dev->num_crtcs, DRM_MEM_DRIVER); - drm_free(dev->vblank_offset, sizeof(*dev->vblank_offset) * dev->num_crtcs, - DRM_MEM_DRIVER); - - dev->num_crtcs = 0; -} - -int drm_vblank_init(struct drm_device *dev, int num_crtcs) -{ - int i, ret = -ENOMEM; - - setup_timer(&dev->vblank_disable_timer, vblank_disable_fn, - (unsigned long)dev); - spin_lock_init(&dev->vbl_lock); - atomic_set(&dev->vbl_signal_pending, 0); - dev->num_crtcs = num_crtcs; - - dev->vbl_queue = drm_alloc(sizeof(wait_queue_head_t) * num_crtcs, - DRM_MEM_DRIVER); - if (!dev->vbl_queue) - goto err; - - dev->vbl_sigs = drm_alloc(sizeof(struct list_head) * num_crtcs, - DRM_MEM_DRIVER); - if (!dev->vbl_sigs) - goto err; - - dev->_vblank_count = drm_alloc(sizeof(atomic_t) * num_crtcs, - DRM_MEM_DRIVER); - if (!dev->_vblank_count) - goto err; - - dev->vblank_refcount = drm_alloc(sizeof(atomic_t) * num_crtcs, - DRM_MEM_DRIVER); - if (!dev->vblank_refcount) - goto err; - - dev->vblank_enabled = drm_calloc(num_crtcs, sizeof(int), - DRM_MEM_DRIVER); - if (!dev->vblank_enabled) - goto err; - - dev->last_vblank = drm_calloc(num_crtcs, sizeof(u32), DRM_MEM_DRIVER); - if (!dev->last_vblank) - goto err; - - dev->vblank_premodeset = drm_calloc(num_crtcs, sizeof(u32), - DRM_MEM_DRIVER); - if (!dev->vblank_premodeset) - goto err; - - dev->vblank_offset = drm_calloc(num_crtcs, sizeof(u32), DRM_MEM_DRIVER); - if (!dev->vblank_offset) - goto err; - - /* Zero per-crtc vblank stuff */ - for (i = 0; i < num_crtcs; i++) { - init_waitqueue_head(&dev->vbl_queue[i]); - INIT_LIST_HEAD(&dev->vbl_sigs[i]); - atomic_set(&dev->_vblank_count[i], 0); - atomic_set(&dev->vblank_refcount[i], 0); - } - - return 0; - -err: - drm_vblank_cleanup(dev); - return ret; -} -EXPORT_SYMBOL(drm_vblank_init); - /** * Install IRQ handler. * @@ -220,6 +109,17 @@ static int drm_irq_install(struct drm_device * dev) DRM_DEBUG("irq=%d\n", dev->irq); + if (drm_core_check_feature(dev, DRIVER_IRQ_VBL)) { + init_waitqueue_head(&dev->vbl_queue); + + spin_lock_init(&dev->vbl_lock); + + INIT_LIST_HEAD(&dev->vbl_sigs); + INIT_LIST_HEAD(&dev->vbl_sigs2); + + dev->vbl_pending = 0; + } + /* Before installing handler */ dev->driver->irq_preinstall(dev); @@ -237,14 +137,9 @@ static int drm_irq_install(struct drm_device * dev) } /* After installing handler */ - ret = dev->driver->irq_postinstall(dev); - if (ret < 0) { - mutex_lock(&dev->struct_mutex); - dev->irq_enabled = 0; - mutex_unlock(&dev->struct_mutex); - } + dev->driver->irq_postinstall(dev); - return ret; + return 0; } /** @@ -275,8 +170,6 @@ int drm_irq_uninstall(struct drm_device * dev) free_irq(dev->irq, dev); - drm_vblank_cleanup(dev); - dev->locked_tasklet_func = NULL; return 0; @@ -321,148 +214,6 @@ int drm_control(struct drm_device *dev, void *data, } /** - * drm_vblank_count - retrieve "cooked" vblank counter value - * @dev: DRM device - * @crtc: which counter to retrieve - * - * Fetches the "cooked" vblank count value that represents the number of - * vblank events since the system was booted, including lost events due to - * modesetting activity. - */ -u32 drm_vblank_count(struct drm_device *dev, int crtc) -{ - return atomic_read(&dev->_vblank_count[crtc]) + - dev->vblank_offset[crtc]; -} -EXPORT_SYMBOL(drm_vblank_count); - -/** - * drm_update_vblank_count - update the master vblank counter - * @dev: DRM device - * @crtc: counter to update - * - * Call back into the driver to update the appropriate vblank counter - * (specified by @crtc). Deal with wraparound, if it occurred, and - * update the last read value so we can deal with wraparound on the next - * call if necessary. - */ -void drm_update_vblank_count(struct drm_device *dev, int crtc) -{ - unsigned long irqflags; - 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); - spin_lock_irqsave(&dev->vbl_lock, irqflags); - if (cur_vblank < dev->last_vblank[crtc]) { - diff = dev->max_vblank_count - - dev->last_vblank[crtc]; - diff += cur_vblank; - } else { - diff = cur_vblank - dev->last_vblank[crtc]; - } - dev->last_vblank[crtc] = cur_vblank; - spin_unlock_irqrestore(&dev->vbl_lock, irqflags); - - atomic_add(diff, &dev->_vblank_count[crtc]); -} -EXPORT_SYMBOL(drm_update_vblank_count); - -/** - * drm_vblank_get - get a reference count on vblank events - * @dev: DRM device - * @crtc: which CRTC to own - * - * Acquire a reference count on vblank events to avoid having them disabled - * while in use. Note callers will probably want to update the master counter - * using drm_update_vblank_count() above before calling this routine so that - * wakeups occur on the right vblank event. - * - * RETURNS - * Zero on success, nonzero on failure. - */ -int drm_vblank_get(struct drm_device *dev, int crtc) -{ - unsigned long irqflags; - int ret = 0; - - spin_lock_irqsave(&dev->vbl_lock, irqflags); - /* Going from 0->1 means we have to enable interrupts again */ - if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1 && - !dev->vblank_enabled[crtc]) { - ret = dev->driver->enable_vblank(dev, crtc); - if (ret) - atomic_dec(&dev->vblank_refcount[crtc]); - else - dev->vblank_enabled[crtc] = 1; - } - spin_unlock_irqrestore(&dev->vbl_lock, irqflags); - - return ret; -} -EXPORT_SYMBOL(drm_vblank_get); - -/** - * drm_vblank_put - give up ownership of vblank events - * @dev: DRM device - * @crtc: which counter to give up - * - * Release ownership of a given vblank counter, turning off interrupts - * if possible. - */ -void drm_vblank_put(struct drm_device *dev, int crtc) -{ - /* Last user schedules interrupt disable */ - if (atomic_dec_and_test(&dev->vblank_refcount[crtc])) - mod_timer(&dev->vblank_disable_timer, jiffies + 5*DRM_HZ); -} -EXPORT_SYMBOL(drm_vblank_put); - -/** - * drm_modeset_ctl - handle vblank event counter changes across mode switch - * @DRM_IOCTL_ARGS: standard ioctl arguments - * - * Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET - * ioctls around modesetting so that any lost vblank events are accounted for. - */ -int drm_modeset_ctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_modeset_ctl *modeset = data; - int crtc, ret = 0; - u32 new; - - crtc = modeset->arg; - if (crtc >= dev->num_crtcs) { - ret = -EINVAL; - goto out; - } - - switch (modeset->cmd) { - case _DRM_PRE_MODESET: - dev->vblank_premodeset[crtc] = - dev->driver->get_vblank_counter(dev, crtc); - break; - case _DRM_POST_MODESET: - new = dev->driver->get_vblank_counter(dev, crtc); - dev->vblank_offset[crtc] = dev->vblank_premodeset[crtc] - new; - break; - default: - ret = -EINVAL; - break; - } - -out: - return ret; -} - -/** * Wait for VBLANK. * * \param inode device inode. @@ -481,13 +232,12 @@ out: * * If a signal is not requested, then calls vblank_wait(). */ -int drm_wait_vblank(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv) { union drm_wait_vblank *vblwait = data; struct timeval now; int ret = 0; - unsigned int flags, seq, crtc; + unsigned int flags, seq; if ((!dev->irq) || (!dev->irq_enabled)) return -EINVAL; @@ -501,13 +251,13 @@ int drm_wait_vblank(struct drm_device *dev, void *data, } flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK; - crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0; - if (crtc >= dev->num_crtcs) + if (!drm_core_check_feature(dev, (flags & _DRM_VBLANK_SECONDARY) ? + DRIVER_IRQ_VBL2 : DRIVER_IRQ_VBL)) return -EINVAL; - drm_update_vblank_count(dev, crtc); - seq = drm_vblank_count(dev, crtc); + seq = atomic_read((flags & _DRM_VBLANK_SECONDARY) ? &dev->vbl_received2 + : &dev->vbl_received); switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) { case _DRM_VBLANK_RELATIVE: @@ -526,7 +276,8 @@ int drm_wait_vblank(struct drm_device *dev, void *data, if (flags & _DRM_VBLANK_SIGNAL) { unsigned long irqflags; - struct list_head *vbl_sigs = &dev->vbl_sigs[crtc]; + struct list_head *vbl_sigs = (flags & _DRM_VBLANK_SECONDARY) + ? &dev->vbl_sigs2 : &dev->vbl_sigs; struct drm_vbl_sig *vbl_sig; spin_lock_irqsave(&dev->vbl_lock, irqflags); @@ -547,26 +298,22 @@ int drm_wait_vblank(struct drm_device *dev, void *data, } } - if (atomic_read(&dev->vbl_signal_pending) >= 100) { + if (dev->vbl_pending >= 100) { spin_unlock_irqrestore(&dev->vbl_lock, irqflags); return -EBUSY; } + dev->vbl_pending++; + spin_unlock_irqrestore(&dev->vbl_lock, irqflags); - vbl_sig = drm_calloc(1, sizeof(struct drm_vbl_sig), - DRM_MEM_DRIVER); - if (!vbl_sig) + if (! + (vbl_sig = + drm_alloc(sizeof(struct drm_vbl_sig), DRM_MEM_DRIVER))) { return -ENOMEM; - - ret = drm_vblank_get(dev, crtc); - if (ret) { - drm_free(vbl_sig, sizeof(struct drm_vbl_sig), - DRM_MEM_DRIVER); - return ret; } - atomic_inc(&dev->vbl_signal_pending); + memset((void *)vbl_sig, 0, sizeof(*vbl_sig)); vbl_sig->sequence = vblwait->request.sequence; vbl_sig->info.si_signo = vblwait->request.signal; @@ -580,20 +327,17 @@ int drm_wait_vblank(struct drm_device *dev, void *data, vblwait->reply.sequence = seq; } else { - unsigned long cur_vblank; - - ret = drm_vblank_get(dev, crtc); - if (ret) - return ret; - DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ, - (((cur_vblank = drm_vblank_count(dev, crtc)) - - vblwait->request.sequence) <= (1 << 23))); - drm_vblank_put(dev, crtc); - do_gettimeofday(&now); + if (flags & _DRM_VBLANK_SECONDARY) { + if (dev->driver->vblank_wait2) + ret = dev->driver->vblank_wait2(dev, &vblwait->request.sequence); + } else if (dev->driver->vblank_wait) + ret = + dev->driver->vblank_wait(dev, + &vblwait->request.sequence); + do_gettimeofday(&now); vblwait->reply.tval_sec = now.tv_sec; vblwait->reply.tval_usec = now.tv_usec; - vblwait->reply.sequence = cur_vblank; } done: @@ -604,57 +348,44 @@ int drm_wait_vblank(struct drm_device *dev, void *data, * Send the VBLANK signals. * * \param dev DRM device. - * \param crtc CRTC where the vblank event occurred * * Sends a signal for each task in drm_device::vbl_sigs and empties the list. * * If a signal is not requested, then calls vblank_wait(). */ -static void drm_vbl_send_signals(struct drm_device * dev, int crtc) +void drm_vbl_send_signals(struct drm_device * dev) { - struct drm_vbl_sig *vbl_sig, *tmp; - struct list_head *vbl_sigs; - unsigned int vbl_seq; unsigned long flags; + int i; spin_lock_irqsave(&dev->vbl_lock, flags); - vbl_sigs = &dev->vbl_sigs[crtc]; - vbl_seq = drm_vblank_count(dev, crtc); + for (i = 0; i < 2; i++) { + struct drm_vbl_sig *vbl_sig, *tmp; + struct list_head *vbl_sigs = i ? &dev->vbl_sigs2 : &dev->vbl_sigs; + unsigned int vbl_seq = atomic_read(i ? &dev->vbl_received2 : + &dev->vbl_received); - list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) { - if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) { - vbl_sig->info.si_code = vbl_seq; - send_sig_info(vbl_sig->info.si_signo, - &vbl_sig->info, vbl_sig->task); + list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) { + if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) { + vbl_sig->info.si_code = vbl_seq; + send_sig_info(vbl_sig->info.si_signo, + &vbl_sig->info, vbl_sig->task); - list_del(&vbl_sig->head); + list_del(&vbl_sig->head); - drm_free(vbl_sig, sizeof(*vbl_sig), - DRM_MEM_DRIVER); - atomic_dec(&dev->vbl_signal_pending); - drm_vblank_put(dev, crtc); - } + drm_free(vbl_sig, sizeof(*vbl_sig), + DRM_MEM_DRIVER); + + dev->vbl_pending--; + } + } } spin_unlock_irqrestore(&dev->vbl_lock, flags); } -/** - * drm_handle_vblank - handle a vblank event - * @dev: DRM device - * @crtc: where this event occurred - * - * Drivers should call this routine in their vblank interrupt handlers to - * update the vblank counter and send any signals that may be pending. - */ -void drm_handle_vblank(struct drm_device *dev, int crtc) -{ - drm_update_vblank_count(dev, crtc); - DRM_WAKEUP(&dev->vbl_queue[crtc]); - drm_vbl_send_signals(dev, crtc); -} -EXPORT_SYMBOL(drm_handle_vblank); +EXPORT_SYMBOL(drm_vbl_send_signals); /** * Tasklet wrapper function. diff --git a/drivers/char/drm/drm_lock.c b/drivers/char/drm/drm_lock.c index 12dcdd1..0998723 100644 --- a/drivers/char/drm/drm_lock.c +++ b/drivers/char/drm/drm_lock.c @@ -53,7 +53,6 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) DECLARE_WAITQUEUE(entry, current); struct drm_lock *lock = data; int ret = 0; - unsigned long irqflags; ++file_priv->lock_count; @@ -72,9 +71,9 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) return -EINVAL; add_wait_queue(&dev->lock.lock_queue, &entry); - spin_lock_irqsave(&dev->lock.spinlock, irqflags); + spin_lock_bh(&dev->lock.spinlock); dev->lock.user_waiters++; - spin_unlock_irqrestore(&dev->lock.spinlock, irqflags); + spin_unlock_bh(&dev->lock.spinlock); for (;;) { __set_current_state(TASK_INTERRUPTIBLE); if (!dev->lock.hw_lock) { @@ -96,9 +95,9 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) break; } } - spin_lock_irqsave(&dev->lock.spinlock, irqflags); + spin_lock_bh(&dev->lock.spinlock); dev->lock.user_waiters--; - spin_unlock_irqrestore(&dev->lock.spinlock, irqflags); + spin_unlock_bh(&dev->lock.spinlock); __set_current_state(TASK_RUNNING); remove_wait_queue(&dev->lock.lock_queue, &entry); @@ -199,9 +198,8 @@ int drm_lock_take(struct drm_lock_data *lock_data, { unsigned int old, new, prev; volatile unsigned int *lock = &lock_data->hw_lock->lock; - unsigned long irqflags; - spin_lock_irqsave(&lock_data->spinlock, irqflags); + spin_lock_bh(&lock_data->spinlock); do { old = *lock; if (old & _DRM_LOCK_HELD) @@ -213,7 +211,7 @@ int drm_lock_take(struct drm_lock_data *lock_data, } prev = cmpxchg(lock, old, new); } while (prev != old); - spin_unlock_irqrestore(&lock_data->spinlock, irqflags); + spin_unlock_bh(&lock_data->spinlock); if (_DRM_LOCKING_CONTEXT(old) == context) { if (old & _DRM_LOCK_HELD) { @@ -274,16 +272,15 @@ int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context) { unsigned int old, new, prev; volatile unsigned int *lock = &lock_data->hw_lock->lock; - unsigned long irqflags; - spin_lock_irqsave(&lock_data->spinlock, irqflags); + spin_lock_bh(&lock_data->spinlock); if (lock_data->kernel_waiters != 0) { drm_lock_transfer(lock_data, 0); lock_data->idle_has_lock = 1; - spin_unlock_irqrestore(&lock_data->spinlock, irqflags); + spin_unlock_bh(&lock_data->spinlock); return 1; } - spin_unlock_irqrestore(&lock_data->spinlock, irqflags); + spin_unlock_bh(&lock_data->spinlock); do { old = *lock; @@ -347,20 +344,19 @@ static int drm_notifier(void *priv) void drm_idlelock_take(struct drm_lock_data *lock_data) { int ret = 0; - unsigned long irqflags; - spin_lock_irqsave(&lock_data->spinlock, irqflags); + spin_lock_bh(&lock_data->spinlock); lock_data->kernel_waiters++; if (!lock_data->idle_has_lock) { - spin_unlock_irqrestore(&lock_data->spinlock, irqflags); + spin_unlock_bh(&lock_data->spinlock); ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT); - spin_lock_irqsave(&lock_data->spinlock, irqflags); + spin_lock_bh(&lock_data->spinlock); if (ret == 1) lock_data->idle_has_lock = 1; } - spin_unlock_irqrestore(&lock_data->spinlock, irqflags); + spin_unlock_bh(&lock_data->spinlock); } EXPORT_SYMBOL(drm_idlelock_take); @@ -368,9 +364,8 @@ void drm_idlelock_release(struct drm_lock_data *lock_data) { unsigned int old, prev; volatile unsigned int *lock = &lock_data->hw_lock->lock; - unsigned long irqflags; - spin_lock_irqsave(&lock_data->spinlock, irqflags); + spin_lock_bh(&lock_data->spinlock); if (--lock_data->kernel_waiters == 0) { if (lock_data->idle_has_lock) { do { @@ -381,7 +376,7 @@ void drm_idlelock_release(struct drm_lock_data *lock_data) lock_data->idle_has_lock = 0; } } - spin_unlock_irqrestore(&lock_data->spinlock, irqflags); + spin_unlock_bh(&lock_data->spinlock); } EXPORT_SYMBOL(drm_idlelock_release); diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c index 9a32169..af211a0 100644 --- a/drivers/char/drm/drm_sysfs.c +++ b/drivers/char/drm/drm_sysfs.c @@ -34,8 +34,6 @@ static int drm_sysfs_suspend(struct device *dev, pm_message_t state) struct drm_minor *drm_minor = to_drm_minor(dev); struct drm_device *drm_dev = drm_minor->dev; - printk(KERN_ERR "%s\n", __func__); - if (drm_dev->driver->suspend) return drm_dev->driver->suspend(drm_dev, state); diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c index f47e46e..8897434 100644 --- a/drivers/char/drm/i915_dma.c +++ b/drivers/char/drm/i915_dma.c @@ -415,13 +415,10 @@ static void i915_emit_breadcrumb(struct drm_device *dev) drm_i915_private_t *dev_priv = dev->dev_private; RING_LOCALS; - if (++dev_priv->counter > BREADCRUMB_MASK) { - dev_priv->counter = 1; - DRM_DEBUG("Breadcrumb counter wrapped around\n"); - } + dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter; - if (dev_priv->sarea_priv) - dev_priv->sarea_priv->last_enqueue = dev_priv->counter; + if (dev_priv->counter > 0x7FFFFFFFUL) + dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1; BEGIN_LP_RING(4); OUT_RING(CMD_STORE_DWORD_IDX); @@ -431,26 +428,6 @@ static void i915_emit_breadcrumb(struct drm_device *dev) ADVANCE_LP_RING(); } -int i915_emit_mi_flush(struct drm_device *dev, uint32_t flush) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - uint32_t flush_cmd = CMD_MI_FLUSH; - RING_LOCALS; - - flush_cmd |= flush; - - i915_kernel_lost_context(dev); - - BEGIN_LP_RING(4); - OUT_RING(flush_cmd); - OUT_RING(0); - OUT_RING(0); - OUT_RING(0); - ADVANCE_LP_RING(); - - return 0; -} - static int i915_dispatch_cmdbuffer(struct drm_device * dev, drm_i915_cmdbuffer_t * cmd) { @@ -534,74 +511,52 @@ static int i915_dispatch_batchbuffer(struct drm_device * dev, return 0; } -static void i915_do_dispatch_flip(struct drm_device * dev, int plane, int sync) +static int i915_dispatch_flip(struct drm_device * dev) { drm_i915_private_t *dev_priv = dev->dev_private; - u32 num_pages, current_page, next_page, dspbase; - int shift = 2 * plane, x, y; RING_LOCALS; - /* Calculate display base offset */ - num_pages = dev_priv->sarea_priv->third_handle ? 3 : 2; - current_page = (dev_priv->sarea_priv->pf_current_page >> shift) & 0x3; - next_page = (current_page + 1) % num_pages; + DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n", + __FUNCTION__, + dev_priv->current_page, + dev_priv->sarea_priv->pf_current_page); - switch (next_page) { - default: - case 0: - dspbase = dev_priv->sarea_priv->front_offset; - break; - case 1: - dspbase = dev_priv->sarea_priv->back_offset; - break; - case 2: - dspbase = dev_priv->sarea_priv->third_offset; - break; - } + i915_kernel_lost_context(dev); + + BEGIN_LP_RING(2); + OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE); + OUT_RING(0); + ADVANCE_LP_RING(); - if (plane == 0) { - x = dev_priv->sarea_priv->planeA_x; - y = dev_priv->sarea_priv->planeA_y; + BEGIN_LP_RING(6); + OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP); + OUT_RING(0); + if (dev_priv->current_page == 0) { + OUT_RING(dev_priv->back_offset); + dev_priv->current_page = 1; } else { - x = dev_priv->sarea_priv->planeB_x; - y = dev_priv->sarea_priv->planeB_y; + OUT_RING(dev_priv->front_offset); + dev_priv->current_page = 0; } + OUT_RING(0); + ADVANCE_LP_RING(); - dspbase += (y * dev_priv->sarea_priv->pitch + x) * dev_priv->cpp; + BEGIN_LP_RING(2); + OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP); + OUT_RING(0); + ADVANCE_LP_RING(); - DRM_DEBUG("plane=%d current_page=%d dspbase=0x%x\n", plane, current_page, - dspbase); + dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; BEGIN_LP_RING(4); - OUT_RING(sync ? 0 : - (MI_WAIT_FOR_EVENT | (plane ? MI_WAIT_FOR_PLANE_B_FLIP : - MI_WAIT_FOR_PLANE_A_FLIP))); - OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | (sync ? 0 : ASYNC_FLIP) | - (plane ? DISPLAY_PLANE_B : DISPLAY_PLANE_A)); - OUT_RING(dev_priv->sarea_priv->pitch * dev_priv->cpp); - OUT_RING(dspbase); + OUT_RING(CMD_STORE_DWORD_IDX); + OUT_RING(20); + OUT_RING(dev_priv->counter); + OUT_RING(0); ADVANCE_LP_RING(); - dev_priv->sarea_priv->pf_current_page &= ~(0x3 << shift); - dev_priv->sarea_priv->pf_current_page |= next_page << shift; -} - -void i915_dispatch_flip(struct drm_device * dev, int planes, int sync) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - int i; - - DRM_DEBUG("planes=0x%x pfCurrentPage=%d\n", - planes, dev_priv->sarea_priv->pf_current_page); - - i915_emit_mi_flush(dev, MI_READ_FLUSH | MI_EXE_FLUSH); - - for (i = 0; i < 2; i++) - if (planes & (1 << i)) - i915_do_dispatch_flip(dev, i, sync); - - i915_emit_breadcrumb(dev); - + dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; + return 0; } static int i915_quiescent(struct drm_device * dev) @@ -624,6 +579,7 @@ static int i915_batchbuffer(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + u32 *hw_status = dev_priv->hw_status_page; drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *) dev_priv->sarea_priv; drm_i915_batchbuffer_t *batch = data; @@ -646,7 +602,7 @@ static int i915_batchbuffer(struct drm_device *dev, void *data, ret = i915_dispatch_batchbuffer(dev, batch); - sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); + sarea_priv->last_dispatch = (int)hw_status[5]; return ret; } @@ -654,6 +610,7 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + u32 *hw_status = dev_priv->hw_status_page; drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *) dev_priv->sarea_priv; drm_i915_cmdbuffer_t *cmdbuf = data; @@ -678,51 +635,18 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data, return ret; } - sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); - return 0; -} - -static int i915_do_cleanup_pageflip(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - int i, planes, num_pages = dev_priv->sarea_priv->third_handle ? 3 : 2; - - DRM_DEBUG("\n"); - - for (i = 0, planes = 0; i < 2; i++) - if (dev_priv->sarea_priv->pf_current_page & (0x3 << (2 * i))) { - dev_priv->sarea_priv->pf_current_page = - (dev_priv->sarea_priv->pf_current_page & - ~(0x3 << (2 * i))) | ((num_pages - 1) << (2 * i)); - - planes |= 1 << i; - } - - if (planes) - i915_dispatch_flip(dev, planes, 0); - + sarea_priv->last_dispatch = (int)hw_status[5]; return 0; } static int i915_flip_bufs(struct drm_device *dev, void *data, struct drm_file *file_priv) { - drm_i915_flip_t *param = data; - - DRM_DEBUG("\n"); + DRM_DEBUG("%s\n", __FUNCTION__); LOCK_TEST_WITH_RETURN(dev, file_priv); - /* This is really planes */ - if (param->pipes & ~0x3) { - DRM_ERROR("Invalid planes 0x%x, only <= 0x3 is valid\n", - param->pipes); - return -EINVAL; - } - - i915_dispatch_flip(dev, param->pipes, 0); - - return 0; + return i915_dispatch_flip(dev); } static int i915_getparam(struct drm_device *dev, void *data, @@ -883,8 +807,6 @@ void i915_driver_lastclose(struct drm_device * dev) if (!dev_priv) return; - if (drm_getsarea(dev) && dev_priv->sarea_priv) - i915_do_cleanup_pageflip(dev); if (dev_priv->agp_heap) i915_mem_takedown(&(dev_priv->agp_heap)); diff --git a/drivers/char/drm/i915_drm.h b/drivers/char/drm/i915_drm.h index 0431c00..05c66cf 100644 --- a/drivers/char/drm/i915_drm.h +++ b/drivers/char/drm/i915_drm.h @@ -105,29 +105,14 @@ typedef struct _drm_i915_sarea { unsigned int rotated_tiled; unsigned int rotated2_tiled; - int planeA_x; - int planeA_y; - int planeA_w; - int planeA_h; - int planeB_x; - int planeB_y; - int planeB_w; - int planeB_h; - - /* Triple buffering */ - drm_handle_t third_handle; - int third_offset; - int third_size; - unsigned int third_tiled; - - /* buffer object handles for the static buffers. May change - * over the lifetime of the client, though it doesn't in our current - * implementation. - */ - unsigned int front_bo_handle; - unsigned int back_bo_handle; - unsigned int third_bo_handle; - unsigned int depth_bo_handle; + int pipeA_x; + int pipeA_y; + int pipeA_w; + int pipeA_h; + int pipeB_x; + int pipeB_y; + int pipeB_w; + int pipeB_h; } drm_i915_sarea_t; /* Flags for perf_boxes @@ -161,7 +146,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) #define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH) -#define DRM_IOCTL_I915_FLIP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FLIP, drm_i915_flip_t) +#define DRM_IOCTL_I915_FLIP DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP) #define DRM_IOCTL_I915_BATCHBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t) #define DRM_IOCTL_I915_IRQ_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t) #define DRM_IOCTL_I915_IRQ_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t) @@ -176,18 +161,6 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t) #define DRM_IOCTL_I915_VBLANK_SWAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t) -/* Asynchronous page flipping: - */ -typedef struct drm_i915_flip { - /* - * This is really talking about planes, and we could rename it - * except for the fact that some of the duplicated i915_drm.h files - * out there check for HAVE_I915_FLIP and so might pick up this - * version. - */ - int pipes; -} drm_i915_flip_t; - /* Allow drivers to submit batchbuffers directly to hardware, relying * on the security mechanisms provided by hardware. */ diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c index bb8f1b2..e8f3d68 100644 --- a/drivers/char/drm/i915_drv.c +++ b/drivers/char/drm/i915_drv.c @@ -147,7 +147,7 @@ static void i915_save_vga(struct drm_device *dev) i915_write_indexed(cr_index, cr_data, 0x11, i915_read_indexed(cr_index, cr_data, 0x11) & (~0x80)); - for (i = 0; i < 0x24; i++) + for (i = 0; i <= 0x24; i++) dev_priv->saveCR[i] = i915_read_indexed(cr_index, cr_data, i); /* Make sure we don't turn off CR group 0 writes */ @@ -156,7 +156,7 @@ static void i915_save_vga(struct drm_device *dev) /* Attribute controller registers */ inb(st01); dev_priv->saveAR_INDEX = inb(VGA_AR_INDEX); - for (i = 0; i < 20; i++) + for (i = 0; i <= 0x14; i++) dev_priv->saveAR[i] = i915_read_ar(st01, i, 0); inb(st01); outb(dev_priv->saveAR_INDEX, VGA_AR_INDEX); @@ -206,7 +206,7 @@ static void i915_restore_vga(struct drm_device *dev) /* CRT controller regs */ /* Enable CR group 0 writes */ i915_write_indexed(cr_index, cr_data, 0x11, dev_priv->saveCR[0x11]); - for (i = 0; i < 0x24; i++) + for (i = 0; i <= 0x24; i++) i915_write_indexed(cr_index, cr_data, i, dev_priv->saveCR[i]); /* Graphics controller regs */ @@ -223,7 +223,7 @@ static void i915_restore_vga(struct drm_device *dev) /* Attribute controller registers */ inb(st01); - for (i = 0; i < 20; i++) + for (i = 0; i <= 0x14; i++) i915_write_ar(st01, i, dev_priv->saveAR[i], 0); inb(st01); /* switch back to index mode */ outb(dev_priv->saveAR_INDEX | 0x20, VGA_AR_INDEX); @@ -256,6 +256,9 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) pci_save_state(dev->pdev); pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB); + /* Display arbitration control */ + dev_priv->saveDSPARB = I915_READ(DSPARB); + /* Pipe & plane A info */ dev_priv->savePIPEACONF = I915_READ(PIPEACONF); dev_priv->savePIPEASRC = I915_READ(PIPEASRC); @@ -349,6 +352,7 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) dev_priv->saveVGACNTRL = I915_READ(VGACNTRL); /* Clock gating state */ + dev_priv->saveD_STATE = I915_READ(D_STATE); dev_priv->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D); /* Cache mode state */ @@ -388,6 +392,8 @@ static int i915_resume(struct drm_device *dev) pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB); + I915_WRITE(DSPARB, dev_priv->saveDSPARB); + /* Pipe & plane A info */ /* Prime the clock */ if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) { @@ -507,6 +513,7 @@ static int i915_resume(struct drm_device *dev) udelay(150); /* Clock gating state */ + I915_WRITE (D_STATE, dev_priv->saveD_STATE); I915_WRITE (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D); /* Cache mode state */ @@ -533,7 +540,8 @@ static struct drm_driver driver = { */ .driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/ - DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, + DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL | + DRIVER_IRQ_VBL2, .load = i915_driver_load, .unload = i915_driver_unload, .lastclose = i915_driver_lastclose, @@ -541,9 +549,8 @@ static struct drm_driver driver = { .suspend = i915_suspend, .resume = i915_resume, .device_is_agp = i915_driver_device_is_agp, - .get_vblank_counter = i915_get_vblank_counter, - .enable_vblank = i915_enable_vblank, - .disable_vblank = i915_disable_vblank, + .vblank_wait = i915_driver_vblank_wait, + .vblank_wait2 = i915_driver_vblank_wait2, .irq_preinstall = i915_driver_irq_preinstall, .irq_postinstall = i915_driver_irq_postinstall, .irq_uninstall = i915_driver_irq_uninstall, diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h index db7001f..1b20f7c 100644 --- a/drivers/char/drm/i915_drv.h +++ b/drivers/char/drm/i915_drv.h @@ -76,9 +76,8 @@ struct mem_block { typedef struct _drm_i915_vbl_swap { struct list_head head; drm_drawable_t drw_id; - unsigned int plane; + unsigned int pipe; unsigned int sequence; - int flip; } drm_i915_vbl_swap_t; typedef struct drm_i915_private { @@ -91,7 +90,7 @@ typedef struct drm_i915_private { drm_dma_handle_t *status_page_dmah; void *hw_status_page; dma_addr_t dma_status_page; - uint32_t counter; + unsigned long counter; unsigned int status_gfx_addr; drm_local_map_t hws_map; @@ -104,18 +103,13 @@ typedef struct drm_i915_private { wait_queue_head_t irq_queue; atomic_t irq_received; - atomic_t irq_emited; + atomic_t irq_emitted; int tex_lru_log_granularity; int allow_batchbuffer; struct mem_block *agp_heap; unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds; int vblank_pipe; - spinlock_t user_irq_lock; - int user_irq_refcount; - int fence_irq_on; - uint32_t irq_enable_reg; - int irq_enabled; spinlock_t swaps_lock; drm_i915_vbl_swap_t vbl_swaps; @@ -125,6 +119,7 @@ typedef struct drm_i915_private { u8 saveLBB; u32 saveDSPACNTR; u32 saveDSPBCNTR; + u32 saveDSPARB; u32 savePIPEACONF; u32 savePIPEBCONF; u32 savePIPEASRC; @@ -194,6 +189,7 @@ typedef struct drm_i915_private { u32 saveIIR; u32 saveIMR; u32 saveCACHE_MODE_0; + u32 saveD_STATE; u32 saveDSPCLK_GATE_D; u32 saveMI_ARB_STATE; u32 saveSWF0[16]; @@ -203,10 +199,10 @@ typedef struct drm_i915_private { u8 saveSR[8]; u8 saveGR[25]; u8 saveAR_INDEX; - u8 saveAR[20]; + u8 saveAR[21]; u8 saveDACMASK; u8 saveDACDATA[256*3]; /* 256 3-byte colors */ - u8 saveCR[36]; + u8 saveCR[37]; } drm_i915_private_t; extern struct drm_ioctl_desc i915_ioctls[]; @@ -222,7 +218,7 @@ extern void i915_driver_preclose(struct drm_device *dev, extern int i915_driver_device_is_agp(struct drm_device * dev); extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); -extern void i915_dispatch_flip(struct drm_device * dev, int pipes, int sync); + /* i915_irq.c */ extern int i915_irq_emit(struct drm_device *dev, void *data, struct drm_file *file_priv); @@ -233,7 +229,7 @@ extern int i915_driver_vblank_wait(struct drm_device *dev, unsigned int *sequenc extern int i915_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence); extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS); extern void i915_driver_irq_preinstall(struct drm_device * dev); -extern int i915_driver_irq_postinstall(struct drm_device * dev); +extern void i915_driver_irq_postinstall(struct drm_device * dev); extern void i915_driver_irq_uninstall(struct drm_device * dev); extern int i915_vblank_pipe_set(struct drm_device *dev, void *data, struct drm_file *file_priv); @@ -241,9 +237,6 @@ extern int i915_vblank_pipe_get(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int i915_vblank_swap(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int i915_enable_vblank(struct drm_device *dev, int crtc); -extern void i915_disable_vblank(struct drm_device *dev, int crtc); -extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc); /* i915_mem.c */ extern int i915_mem_alloc(struct drm_device *dev, void *data, @@ -388,91 +381,21 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); /* Interrupt bits: */ -#define I915_PIPE_CONTROL_NOTIFY_INTERRUPT (1<<18) -#define I915_DISPLAY_PORT_INTERRUPT (1<<17) -#define I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT (1<<15) -#define I915_GMCH_THERMAL_SENSOR_EVENT_INTERRUPT (1<<14) -#define I915_HWB_OOM_INTERRUPT (1<<13) /* binner out of memory */ -#define I915_SYNC_STATUS_INTERRUPT (1<<12) -#define I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT (1<<11) -#define I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT (1<<10) -#define I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT (1<<9) -#define I915_DISPLAY_PLANE_C_FLIP_PENDING_INTERRUPT (1<<8) -#define I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT (1<<7) -#define I915_DISPLAY_PIPE_A_EVENT_INTERRUPT (1<<6) -#define I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT (1<<5) -#define I915_DISPLAY_PIPE_B_EVENT_INTERRUPT (1<<4) -#define I915_DEBUG_INTERRUPT (1<<2) -#define I915_USER_INTERRUPT (1<<1) - +#define USER_INT_FLAG (1<<1) +#define VSYNC_PIPEB_FLAG (1<<5) +#define VSYNC_PIPEA_FLAG (1<<7) +#define HWB_OOM_FLAG (1<<13) /* binner out of memory */ #define I915REG_HWSTAM 0x02098 #define I915REG_INT_IDENTITY_R 0x020a4 #define I915REG_INT_MASK_R 0x020a8 #define I915REG_INT_ENABLE_R 0x020a0 -#define I915REG_INSTPM 0x020c0 - -#define PIPEADSL 0x70000 -#define PIPEBDSL 0x71000 #define I915REG_PIPEASTAT 0x70024 #define I915REG_PIPEBSTAT 0x71024 -/* - * The two pipe frame counter registers are not synchronized, so - * reading a stable value is somewhat tricky. The following code - * should work: - * - * do { - * high1 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >> - * PIPE_FRAME_HIGH_SHIFT; - * low1 = ((INREG(PIPEAFRAMEPIXEL) & PIPE_FRAME_LOW_MASK) >> - * PIPE_FRAME_LOW_SHIFT); - * high2 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >> - * PIPE_FRAME_HIGH_SHIFT); - * } while (high1 != high2); - * frame = (high1 << 8) | low1; - */ -#define PIPEAFRAMEHIGH 0x70040 -#define PIPEBFRAMEHIGH 0x71040 -#define PIPE_FRAME_HIGH_MASK 0x0000ffff -#define PIPE_FRAME_HIGH_SHIFT 0 -#define PIPEAFRAMEPIXEL 0x70044 -#define PIPEBFRAMEPIXEL 0x71044 -#define PIPE_FRAME_LOW_MASK 0xff000000 -#define PIPE_FRAME_LOW_SHIFT 24 -/* - * Pixel within the current frame is counted in the PIPEAFRAMEPIXEL register - * and is 24 bits wide. - */ -#define PIPE_PIXEL_MASK 0x00ffffff -#define PIPE_PIXEL_SHIFT 0 - -#define I915_FIFO_UNDERRUN_STATUS (1UL<<31) -#define I915_CRC_ERROR_ENABLE (1UL<<29) -#define I915_CRC_DONE_ENABLE (1UL<<28) -#define I915_GMBUS_EVENT_ENABLE (1UL<<27) -#define I915_VSYNC_INTERRUPT_ENABLE (1UL<<25) -#define I915_DISPLAY_LINE_COMPARE_ENABLE (1UL<<24) -#define I915_DPST_EVENT_ENABLE (1UL<<23) -#define I915_LEGACY_BLC_EVENT_ENABLE (1UL<<22) -#define I915_ODD_FIELD_INTERRUPT_ENABLE (1UL<<21) -#define I915_EVEN_FIELD_INTERRUPT_ENABLE (1UL<<20) -#define I915_START_VBLANK_INTERRUPT_ENABLE (1UL<<18) /* 965 or later */ -#define I915_VBLANK_INTERRUPT_ENABLE (1UL<<17) -#define I915_OVERLAY_UPDATED_ENABLE (1UL<<16) -#define I915_CRC_ERROR_INTERRUPT_STATUS (1UL<<13) -#define I915_CRC_DONE_INTERRUPT_STATUS (1UL<<12) -#define I915_GMBUS_INTERRUPT_STATUS (1UL<<11) -#define I915_VSYNC_INTERRUPT_STATUS (1UL<<9) -#define I915_DISPLAY_LINE_COMPARE_STATUS (1UL<<8) -#define I915_DPST_EVENT_STATUS (1UL<<7) -#define I915_LEGACY_BLC_EVENT_STATUS (1UL<<6) -#define I915_ODD_FIELD_INTERRUPT_STATUS (1UL<<5) -#define I915_EVEN_FIELD_INTERRUPT_STATUS (1UL<<4) -#define I915_START_VBLANK_INTERRUPT_STATUS (1UL<<2) /* 965 or later */ -#define I915_VBLANK_INTERRUPT_STATUS (1UL<<1) -#define I915_OVERLAY_UPDATED_STATUS (1UL<<0) +#define I915_VBLANK_INTERRUPT_ENABLE (1UL<<17) +#define I915_VBLANK_CLEAR (1UL<<1) #define SRX_INDEX 0x3c4 #define SRX_DATA 0x3c5 @@ -749,6 +672,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); /** P1 value is 2 greater than this field */ # define VGA0_PD_P1_MASK (0x1f << 0) +/* PCI D state control register */ +#define D_STATE 0x6104 #define DSPCLK_GATE_D 0x6200 /* I830 CRTC registers */ @@ -1059,6 +984,12 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); #define PIPECONF_INTERLACE_W_FIELD_INDICATION (6 << 21) #define PIPECONF_INTERLACE_FIELD_0_ONLY (7 << 21) +#define DSPARB 0x70030 +#define DSPARB_CSTART_MASK (0x7f << 7) +#define DSPARB_CSTART_SHIFT 7 +#define DSPARB_BSTART_MASK (0x7f) +#define DSPARB_BSTART_SHIFT 0 + #define PIPEBCONF 0x71008 #define PIPEBCONF_ENABLE (1<<31) #define PIPEBCONF_DISABLE 0 diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c index 023ce66..f7f16e7 100644 --- a/drivers/char/drm/i915_irq.c +++ b/drivers/char/drm/i915_irq.c @@ -38,109 +38,6 @@ #define MAX_NOPID ((u32)~0) /** - * i915_get_pipe - return the the pipe associated with a given plane - * @dev: DRM device - * @plane: plane to look for - * - * The Intel Mesa & 2D drivers call the vblank routines with a plane number - * rather than a pipe number, since they may not always be equal. This routine - * maps the given @plane back to a pipe number. - */ -static int -i915_get_pipe(struct drm_device *dev, int plane) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - u32 dspcntr; - - dspcntr = plane ? I915_READ(DSPBCNTR) : I915_READ(DSPACNTR); - - return dspcntr & DISPPLANE_SEL_PIPE_MASK ? 1 : 0; -} - -/** - * i915_get_plane - return the the plane associated with a given pipe - * @dev: DRM device - * @pipe: pipe to look for - * - * The Intel Mesa & 2D drivers call the vblank routines with a plane number - * rather than a plane number, since they may not always be equal. This routine - * maps the given @pipe back to a plane number. - */ -static int -i915_get_plane(struct drm_device *dev, int pipe) -{ - if (i915_get_pipe(dev, 0) == pipe) - return 0; - return 1; -} - -/** - * i915_pipe_enabled - check if a pipe is enabled - * @dev: DRM device - * @pipe: pipe to check - * - * Reading certain registers when the pipe is disabled can hang the chip. - * Use this routine to make sure the PLL is running and the pipe is active - * before reading such registers if unsure. - */ -static int -i915_pipe_enabled(struct drm_device *dev, int pipe) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - unsigned long pipeconf = pipe ? PIPEBCONF : PIPEACONF; - - if (I915_READ(pipeconf) & PIPEACONF_ENABLE) - return 1; - - return 0; -} - -/** - * Emit a synchronous flip. - * - * This function must be called with the drawable spinlock held. - */ -static void -i915_dispatch_vsync_flip(struct drm_device *dev, struct drm_drawable_info *drw, - int plane) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - drm_i915_sarea_t *sarea_priv = dev_priv->sarea_priv; - u16 x1, y1, x2, y2; - int pf_planes = 1 << plane; - - /* If the window is visible on the other plane, we have to flip on that - * plane as well. - */ - if (plane == 1) { - x1 = sarea_priv->planeA_x; - y1 = sarea_priv->planeA_y; - x2 = x1 + sarea_priv->planeA_w; - y2 = y1 + sarea_priv->planeA_h; - } else { - x1 = sarea_priv->planeB_x; - y1 = sarea_priv->planeB_y; - x2 = x1 + sarea_priv->planeB_w; - y2 = y1 + sarea_priv->planeB_h; - } - - if (x2 > 0 && y2 > 0) { - int i, num_rects = drw->num_rects; - struct drm_clip_rect *rect = drw->rects; - - for (i = 0; i < num_rects; i++) - if (!(rect[i].x1 >= x2 || rect[i].y1 >= y2 || - rect[i].x2 <= x1 || rect[i].y2 <= y1)) { - pf_planes = 0x3; - - break; - } - } - - i915_dispatch_flip(dev, pf_planes, 1); -} - -/** * Emit blits for scheduled buffer swaps. * * This function will be called with the HW lock held. @@ -148,19 +45,20 @@ i915_dispatch_vsync_flip(struct drm_device *dev, struct drm_drawable_info *drw, static void i915_vblank_tasklet(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + unsigned long irqflags; struct list_head *list, *tmp, hits, *hit; - int nhits, nrects, slice[2], upper[2], lower[2], i, num_pages; - unsigned counter[2]; + int nhits, nrects, slice[2], upper[2], lower[2], i; + unsigned counter[2] = { atomic_read(&dev->vbl_received), + atomic_read(&dev->vbl_received2) }; struct drm_drawable_info *drw; drm_i915_sarea_t *sarea_priv = dev_priv->sarea_priv; - u32 cpp = dev_priv->cpp, offsets[3]; + u32 cpp = dev_priv->cpp; u32 cmd = (cpp == 4) ? (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA | XY_SRC_COPY_BLT_WRITE_RGB) : XY_SRC_COPY_BLT_CMD; u32 src_pitch = sarea_priv->pitch * cpp; u32 dst_pitch = sarea_priv->pitch * cpp; - /* COPY rop (0xcc), map cpp to magic color depth constants */ u32 ropcpp = (0xcc << 16) | ((cpp - 1) << 24); RING_LOCALS; @@ -173,34 +71,24 @@ static void i915_vblank_tasklet(struct drm_device *dev) src_pitch >>= 2; } - counter[0] = drm_vblank_count(dev, 0); - counter[1] = drm_vblank_count(dev, 1); - DRM_DEBUG("\n"); INIT_LIST_HEAD(&hits); nhits = nrects = 0; - /* No irqsave/restore necessary. This tasklet may be run in an - * interrupt context or normal context, but we don't have to worry - * about getting interrupted by something acquiring the lock, because - * we are the interrupt context thing that acquires the lock. - */ - spin_lock(&dev_priv->swaps_lock); + spin_lock_irqsave(&dev_priv->swaps_lock, irqflags); /* Find buffer swaps scheduled for this vertical blank */ list_for_each_safe(list, tmp, &dev_priv->vbl_swaps.head) { drm_i915_vbl_swap_t *vbl_swap = list_entry(list, drm_i915_vbl_swap_t, head); - int pipe = i915_get_pipe(dev, vbl_swap->plane); - if ((counter[pipe] - vbl_swap->sequence) > (1<<23)) + if ((counter[vbl_swap->pipe] - vbl_swap->sequence) > (1<<23)) continue; list_del(list); dev_priv->swaps_pending--; - drm_vblank_put(dev, pipe); spin_unlock(&dev_priv->swaps_lock); spin_lock(&dev->drw_lock); @@ -238,23 +126,43 @@ static void i915_vblank_tasklet(struct drm_device *dev) spin_lock(&dev_priv->swaps_lock); } - spin_unlock(&dev_priv->swaps_lock); - - if (nhits == 0) + if (nhits == 0) { + spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags); return; + } + + spin_unlock(&dev_priv->swaps_lock); i915_kernel_lost_context(dev); - upper[0] = upper[1] = 0; - slice[0] = max(sarea_priv->planeA_h / nhits, 1); - slice[1] = max(sarea_priv->planeB_h / nhits, 1); - lower[0] = sarea_priv->planeA_y + slice[0]; - lower[1] = sarea_priv->planeB_y + slice[0]; + if (IS_I965G(dev)) { + BEGIN_LP_RING(4); + + OUT_RING(GFX_OP_DRAWRECT_INFO_I965); + OUT_RING(0); + OUT_RING(((sarea_priv->width - 1) & 0xffff) | ((sarea_priv->height - 1) << 16)); + OUT_RING(0); + ADVANCE_LP_RING(); + } else { + BEGIN_LP_RING(6); - offsets[0] = sarea_priv->front_offset; - offsets[1] = sarea_priv->back_offset; - offsets[2] = sarea_priv->third_offset; - num_pages = sarea_priv->third_handle ? 3 : 2; + OUT_RING(GFX_OP_DRAWRECT_INFO); + OUT_RING(0); + OUT_RING(0); + OUT_RING(sarea_priv->width | sarea_priv->height << 16); + OUT_RING(sarea_priv->width | sarea_priv->height << 16); + OUT_RING(0); + + ADVANCE_LP_RING(); + } + + sarea_priv->ctxOwner = DRM_KERNEL_CONTEXT; + + upper[0] = upper[1] = 0; + slice[0] = max(sarea_priv->pipeA_h / nhits, 1); + slice[1] = max(sarea_priv->pipeB_h / nhits, 1); + lower[0] = sarea_priv->pipeA_y + slice[0]; + lower[1] = sarea_priv->pipeB_y + slice[0]; spin_lock(&dev->drw_lock); @@ -266,8 +174,6 @@ static void i915_vblank_tasklet(struct drm_device *dev) for (i = 0; i++ < nhits; upper[0] = lower[0], lower[0] += slice[0], upper[1] = lower[1], lower[1] += slice[1]) { - int init_drawrect = 1; - if (i == nhits) lower[0] = lower[1] = sarea_priv->height; @@ -275,7 +181,7 @@ static void i915_vblank_tasklet(struct drm_device *dev) drm_i915_vbl_swap_t *swap_hit = list_entry(hit, drm_i915_vbl_swap_t, head); struct drm_clip_rect *rect; - int num_rects, plane, front, back; + int num_rects, pipe; unsigned short top, bottom; drw = drm_get_drawable_info(dev, swap_hit->drw_id); @@ -283,50 +189,10 @@ static void i915_vblank_tasklet(struct drm_device *dev) if (!drw) continue; - plane = swap_hit->plane; - - if (swap_hit->flip) { - i915_dispatch_vsync_flip(dev, drw, plane); - continue; - } - - if (init_drawrect) { - int width = sarea_priv->width; - int height = sarea_priv->height; - if (IS_I965G(dev)) { - BEGIN_LP_RING(4); - - OUT_RING(GFX_OP_DRAWRECT_INFO_I965); - OUT_RING(0); - OUT_RING(((width - 1) & 0xffff) | ((height - 1) << 16)); - OUT_RING(0); - - ADVANCE_LP_RING(); - } else { - BEGIN_LP_RING(6); - - OUT_RING(GFX_OP_DRAWRECT_INFO); - OUT_RING(0); - OUT_RING(0); - OUT_RING(((width - 1) & 0xffff) | ((height - 1) << 16)); - OUT_RING(0); - OUT_RING(0); - - ADVANCE_LP_RING(); - } - - sarea_priv->ctxOwner = DRM_KERNEL_CONTEXT; - - init_drawrect = 0; - } - rect = drw->rects; - top = upper[plane]; - bottom = lower[plane]; - - front = (dev_priv->sarea_priv->pf_current_page >> - (2 * plane)) & 0x3; - back = (front + 1) % num_pages; + pipe = swap_hit->pipe; + top = upper[pipe]; + bottom = lower[pipe]; for (num_rects = drw->num_rects; num_rects--; rect++) { int y1 = max(rect->y1, top); @@ -341,17 +207,17 @@ static void i915_vblank_tasklet(struct drm_device *dev) OUT_RING(ropcpp | dst_pitch); OUT_RING((y1 << 16) | rect->x1); OUT_RING((y2 << 16) | rect->x2); - OUT_RING(offsets[front]); + OUT_RING(sarea_priv->front_offset); OUT_RING((y1 << 16) | rect->x1); OUT_RING(src_pitch); - OUT_RING(offsets[back]); + OUT_RING(sarea_priv->back_offset); ADVANCE_LP_RING(); } } } - spin_unlock(&dev->drw_lock); + spin_unlock_irqrestore(&dev->drw_lock, irqflags); list_for_each_safe(hit, tmp, &hits) { drm_i915_vbl_swap_t *swap_hit = @@ -363,112 +229,67 @@ static void i915_vblank_tasklet(struct drm_device *dev) } } -u32 i915_get_vblank_counter(struct drm_device *dev, int plane) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - unsigned long high_frame; - unsigned long low_frame; - u32 high1, high2, low, count; - int pipe; - - pipe = i915_get_pipe(dev, plane); - high_frame = pipe ? PIPEBFRAMEHIGH : PIPEAFRAMEHIGH; - low_frame = pipe ? PIPEBFRAMEPIXEL : PIPEAFRAMEPIXEL; - - if (!i915_pipe_enabled(dev, pipe)) { - printk(KERN_ERR "trying to get vblank count for disabled " - "pipe %d\n", pipe); - return 0; - } - - /* - * High & low register fields aren't synchronized, so make sure - * we get a low value that's stable across two reads of the high - * register. - */ - do { - high1 = ((I915_READ(high_frame) & PIPE_FRAME_HIGH_MASK) >> - PIPE_FRAME_HIGH_SHIFT); - low = ((I915_READ(low_frame) & PIPE_FRAME_LOW_MASK) >> - PIPE_FRAME_LOW_SHIFT); - high2 = ((I915_READ(high_frame) & PIPE_FRAME_HIGH_MASK) >> - PIPE_FRAME_HIGH_SHIFT); - } while (high1 != high2); - - count = (high1 << 8) | low; - - /* count may be reset by other driver(e.g. 2D driver), - we have no way to know if it is wrapped or resetted - when count is zero. do a rough guess. - */ - if (count == 0 && dev->last_vblank[pipe] < dev->max_vblank_count/2) - dev->last_vblank[pipe] = 0; - - return count; -} - irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) { struct drm_device *dev = (struct drm_device *) arg; drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - u32 iir; + u16 temp; u32 pipea_stats, pipeb_stats; - int vblank = 0; - - iir = I915_READ(I915REG_INT_IDENTITY_R); - if (iir == 0) { - DRM_DEBUG ("iir 0x%08x im 0x%08x ie 0x%08x pipea 0x%08x pipeb 0x%08x\n", - iir, - I915_READ(I915REG_INT_MASK_R), - I915_READ(I915REG_INT_ENABLE_R), - I915_READ(I915REG_PIPEASTAT), - I915_READ(I915REG_PIPEBSTAT)); - return IRQ_NONE; - } - /* - * Clear the PIPE(A|B)STAT regs before the IIR otherwise - * we may get extra interrupts. - */ - if (iir & I915_DISPLAY_PIPE_A_EVENT_INTERRUPT) { - pipea_stats = I915_READ(I915REG_PIPEASTAT); - if (pipea_stats & (I915_START_VBLANK_INTERRUPT_STATUS| - I915_VBLANK_INTERRUPT_STATUS)) - { - vblank++; - drm_handle_vblank(dev, i915_get_plane(dev, 0)); - } - I915_WRITE(I915REG_PIPEASTAT, pipea_stats); - } - if (iir & I915_DISPLAY_PIPE_B_EVENT_INTERRUPT) { - pipeb_stats = I915_READ(I915REG_PIPEBSTAT); - if (pipeb_stats & (I915_START_VBLANK_INTERRUPT_STATUS| - I915_VBLANK_INTERRUPT_STATUS)) - { - vblank++; - drm_handle_vblank(dev, i915_get_plane(dev, 1)); - } - I915_WRITE(I915REG_PIPEBSTAT, pipeb_stats); - } + pipea_stats = I915_READ(I915REG_PIPEASTAT); + pipeb_stats = I915_READ(I915REG_PIPEBSTAT); - if (dev_priv->sarea_priv) - dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); + temp = I915_READ16(I915REG_INT_IDENTITY_R); - I915_WRITE(I915REG_INT_IDENTITY_R, iir); - (void) I915_READ(I915REG_INT_IDENTITY_R); /* Flush posted write */ + temp &= (USER_INT_FLAG | VSYNC_PIPEA_FLAG | VSYNC_PIPEB_FLAG); - if (iir & I915_USER_INTERRUPT) { + DRM_DEBUG("%s flag=%08x\n", __FUNCTION__, temp); + + if (temp == 0) + return IRQ_NONE; + + I915_WRITE16(I915REG_INT_IDENTITY_R, temp); + (void) I915_READ16(I915REG_INT_IDENTITY_R); + DRM_READMEMORYBARRIER(); + + dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); + + if (temp & USER_INT_FLAG) DRM_WAKEUP(&dev_priv->irq_queue); - } - if (vblank) { + + if (temp & (VSYNC_PIPEA_FLAG | VSYNC_PIPEB_FLAG)) { + int vblank_pipe = dev_priv->vblank_pipe; + + if ((vblank_pipe & + (DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B)) + == (DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B)) { + if (temp & VSYNC_PIPEA_FLAG) + atomic_inc(&dev->vbl_received); + if (temp & VSYNC_PIPEB_FLAG) + atomic_inc(&dev->vbl_received2); + } else if (((temp & VSYNC_PIPEA_FLAG) && + (vblank_pipe & DRM_I915_VBLANK_PIPE_A)) || + ((temp & VSYNC_PIPEB_FLAG) && + (vblank_pipe & DRM_I915_VBLANK_PIPE_B))) + atomic_inc(&dev->vbl_received); + + DRM_WAKEUP(&dev->vbl_queue); + drm_vbl_send_signals(dev); + if (dev_priv->swaps_pending > 0) drm_locked_tasklet(dev, i915_vblank_tasklet); + I915_WRITE(I915REG_PIPEASTAT, + pipea_stats|I915_VBLANK_INTERRUPT_ENABLE| + I915_VBLANK_CLEAR); + I915_WRITE(I915REG_PIPEBSTAT, + pipeb_stats|I915_VBLANK_INTERRUPT_ENABLE| + I915_VBLANK_CLEAR); } return IRQ_HANDLED; } -static int i915_emit_irq(struct drm_device *dev) +static int i915_emit_irq(struct drm_device * dev) { drm_i915_private_t *dev_priv = dev->dev_private; RING_LOCALS; @@ -515,12 +336,42 @@ static int i915_wait_irq(struct drm_device * dev, int irq_nr) READ_BREADCRUMB(dev_priv), (int)dev_priv->counter); } - if (dev_priv->sarea_priv) - dev_priv->sarea_priv->last_dispatch = - READ_BREADCRUMB(dev_priv); + dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); return ret; } +static int i915_driver_vblank_do_wait(struct drm_device *dev, unsigned int *sequence, + atomic_t *counter) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + unsigned int cur_vblank; + int ret = 0; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(counter)) + - *sequence) <= (1<<23))); + + *sequence = cur_vblank; + + return ret; +} + + +int i915_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence) +{ + return i915_driver_vblank_do_wait(dev, sequence, &dev->vbl_received); +} + +int i915_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence) +{ + return i915_driver_vblank_do_wait(dev, sequence, &dev->vbl_received2); +} + /* Needs the lock as it touches the ring. */ int i915_irq_emit(struct drm_device *dev, void *data, @@ -563,96 +414,18 @@ int i915_irq_wait(struct drm_device *dev, void *data, return i915_wait_irq(dev, irqwait->irq_seq); } -int i915_enable_vblank(struct drm_device *dev, int plane) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - int pipe = i915_get_pipe(dev, plane); - u32 pipestat_reg = 0; - u32 pipestat; - - switch (pipe) { - case 0: - pipestat_reg = I915REG_PIPEASTAT; - dev_priv->irq_enable_reg |= I915_DISPLAY_PIPE_A_EVENT_INTERRUPT; - break; - case 1: - pipestat_reg = I915REG_PIPEBSTAT; - dev_priv->irq_enable_reg |= I915_DISPLAY_PIPE_B_EVENT_INTERRUPT; - break; - default: - DRM_ERROR("tried to enable vblank on non-existent pipe %d\n", - pipe); - break; - } - - if (pipestat_reg) - { - pipestat = I915_READ (pipestat_reg); - /* - * Older chips didn't have the start vblank interrupt, - * but - */ - if (IS_I965G (dev)) - pipestat |= I915_START_VBLANK_INTERRUPT_ENABLE; - else - pipestat |= I915_VBLANK_INTERRUPT_ENABLE; - /* - * Clear any pending status - */ - pipestat |= (I915_START_VBLANK_INTERRUPT_STATUS | - I915_VBLANK_INTERRUPT_STATUS); - I915_WRITE(pipestat_reg, pipestat); - } - I915_WRITE(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg); - - return 0; -} - -void i915_disable_vblank(struct drm_device *dev, int plane) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - int pipe = i915_get_pipe(dev, plane); - u32 pipestat_reg = 0; - u32 pipestat; - - switch (pipe) { - case 0: - pipestat_reg = I915REG_PIPEASTAT; - dev_priv->irq_enable_reg &= ~I915_DISPLAY_PIPE_A_EVENT_INTERRUPT; - break; - case 1: - pipestat_reg = I915REG_PIPEBSTAT; - dev_priv->irq_enable_reg &= ~I915_DISPLAY_PIPE_B_EVENT_INTERRUPT; - break; - default: - DRM_ERROR("tried to disable vblank on non-existent pipe %d\n", - pipe); - break; - } - - I915_WRITE(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg); - if (pipestat_reg) - { - pipestat = I915_READ (pipestat_reg); - pipestat &= ~(I915_START_VBLANK_INTERRUPT_ENABLE | - I915_VBLANK_INTERRUPT_ENABLE); - /* - * Clear any pending status - */ - pipestat |= (I915_START_VBLANK_INTERRUPT_STATUS | - I915_VBLANK_INTERRUPT_STATUS); - I915_WRITE(pipestat_reg, pipestat); - } -} - static void i915_enable_interrupt (struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; + u16 flag; - dev_priv->irq_enable_reg |= I915_USER_INTERRUPT; + flag = 0; + if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_A) + flag |= VSYNC_PIPEA_FLAG; + if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_B) + flag |= VSYNC_PIPEB_FLAG; - I915_WRITE(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg); - dev_priv->irq_enabled = 1; + I915_WRITE16(I915REG_INT_ENABLE_R, USER_INT_FLAG | flag); } /* Set the vblank monitor pipe @@ -675,6 +448,8 @@ int i915_vblank_pipe_set(struct drm_device *dev, void *data, dev_priv->vblank_pipe = pipe->pipe; + i915_enable_interrupt (dev); + return 0; } @@ -692,9 +467,9 @@ int i915_vblank_pipe_get(struct drm_device *dev, void *data, flag = I915_READ(I915REG_INT_ENABLE_R); pipe->pipe = 0; - if (flag & I915_DISPLAY_PIPE_A_EVENT_INTERRUPT) + if (flag & VSYNC_PIPEA_FLAG) pipe->pipe |= DRM_I915_VBLANK_PIPE_A; - if (flag & I915_DISPLAY_PIPE_B_EVENT_INTERRUPT) + if (flag & VSYNC_PIPEB_FLAG) pipe->pipe |= DRM_I915_VBLANK_PIPE_B; return 0; @@ -709,30 +484,27 @@ int i915_vblank_swap(struct drm_device *dev, void *data, drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_vblank_swap_t *swap = data; drm_i915_vbl_swap_t *vbl_swap; - unsigned int pipe, seqtype, curseq, plane; + unsigned int pipe, seqtype, curseq; unsigned long irqflags; struct list_head *list; - int ret; if (!dev_priv) { DRM_ERROR("%s called with no initialization\n", __func__); return -EINVAL; } - if (!dev_priv->sarea_priv || dev_priv->sarea_priv->rotation) { + if (dev_priv->sarea_priv->rotation) { DRM_DEBUG("Rotation not supported\n"); return -EINVAL; } if (swap->seqtype & ~(_DRM_VBLANK_RELATIVE | _DRM_VBLANK_ABSOLUTE | - _DRM_VBLANK_SECONDARY | _DRM_VBLANK_NEXTONMISS | - _DRM_VBLANK_FLIP)) { + _DRM_VBLANK_SECONDARY | _DRM_VBLANK_NEXTONMISS)) { DRM_ERROR("Invalid sequence type 0x%x\n", swap->seqtype); return -EINVAL; } - plane = (swap->seqtype & _DRM_VBLANK_SECONDARY) ? 1 : 0; - pipe = i915_get_pipe(dev, plane); + pipe = (swap->seqtype & _DRM_VBLANK_SECONDARY) ? 1 : 0; seqtype = swap->seqtype & (_DRM_VBLANK_RELATIVE | _DRM_VBLANK_ABSOLUTE); @@ -743,11 +515,6 @@ int i915_vblank_swap(struct drm_device *dev, void *data, spin_lock_irqsave(&dev->drw_lock, irqflags); - /* It makes no sense to schedule a swap for a drawable that doesn't have - * valid information at this point. E.g. this could mean that the X - * server is too old to push drawable information to the DRM, in which - * case all such swaps would become ineffective. - */ if (!drm_get_drawable_info(dev, swap->drawable)) { spin_unlock_irqrestore(&dev->drw_lock, irqflags); DRM_DEBUG("Invalid drawable ID %d\n", swap->drawable); @@ -756,8 +523,7 @@ int i915_vblank_swap(struct drm_device *dev, void *data, spin_unlock_irqrestore(&dev->drw_lock, irqflags); - drm_update_vblank_count(dev, pipe); - curseq = drm_vblank_count(dev, pipe); + curseq = atomic_read(pipe ? &dev->vbl_received2 : &dev->vbl_received); if (seqtype == _DRM_VBLANK_RELATIVE) swap->sequence += curseq; @@ -771,43 +537,14 @@ int i915_vblank_swap(struct drm_device *dev, void *data, } } - if (swap->seqtype & _DRM_VBLANK_FLIP) { - swap->sequence--; - - if ((curseq - swap->sequence) <= (1<<23)) { - struct drm_drawable_info *drw; - - LOCK_TEST_WITH_RETURN(dev, file_priv); - - spin_lock_irqsave(&dev->drw_lock, irqflags); - - drw = drm_get_drawable_info(dev, swap->drawable); - - if (!drw) { - spin_unlock_irqrestore(&dev->drw_lock, - irqflags); - DRM_DEBUG("Invalid drawable ID %d\n", - swap->drawable); - return -EINVAL; - } - - i915_dispatch_vsync_flip(dev, drw, plane); - - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - - return 0; - } - } - spin_lock_irqsave(&dev_priv->swaps_lock, irqflags); list_for_each(list, &dev_priv->vbl_swaps.head) { vbl_swap = list_entry(list, drm_i915_vbl_swap_t, head); if (vbl_swap->drw_id == swap->drawable && - vbl_swap->plane == plane && + vbl_swap->pipe == pipe && vbl_swap->sequence == swap->sequence) { - vbl_swap->flip = (swap->seqtype & _DRM_VBLANK_FLIP); spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags); DRM_DEBUG("Already scheduled\n"); return 0; @@ -830,19 +567,9 @@ int i915_vblank_swap(struct drm_device *dev, void *data, DRM_DEBUG("\n"); - ret = drm_vblank_get(dev, pipe); - if (ret) { - drm_free(vbl_swap, sizeof(*vbl_swap), DRM_MEM_DRIVER); - return ret; - } - vbl_swap->drw_id = swap->drawable; - vbl_swap->plane = plane; + vbl_swap->pipe = pipe; vbl_swap->sequence = swap->sequence; - vbl_swap->flip = (swap->seqtype & _DRM_VBLANK_FLIP); - - if (vbl_swap->flip) - swap->sequence++; spin_lock_irqsave(&dev_priv->swaps_lock, irqflags); @@ -860,57 +587,37 @@ void i915_driver_irq_preinstall(struct drm_device * dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - I915_WRITE16(I915REG_HWSTAM, 0xeffe); + I915_WRITE16(I915REG_HWSTAM, 0xfffe); I915_WRITE16(I915REG_INT_MASK_R, 0x0); I915_WRITE16(I915REG_INT_ENABLE_R, 0x0); } -int i915_driver_irq_postinstall(struct drm_device * dev) +void i915_driver_irq_postinstall(struct drm_device * dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - int ret, num_pipes = 2; spin_lock_init(&dev_priv->swaps_lock); INIT_LIST_HEAD(&dev_priv->vbl_swaps.head); dev_priv->swaps_pending = 0; - dev_priv->user_irq_refcount = 0; - dev_priv->irq_enable_reg = 0; - - ret = drm_vblank_init(dev, num_pipes); - if (ret) - return ret; - - dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */ - + if (!dev_priv->vblank_pipe) + dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A; i915_enable_interrupt(dev); DRM_INIT_WAITQUEUE(&dev_priv->irq_queue); - - /* - * Initialize the hardware status page IRQ location. - */ - - I915_WRITE(I915REG_INSTPM, (1 << 5) | (1 << 21)); - return 0; } void i915_driver_irq_uninstall(struct drm_device * dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - u32 temp; + u16 temp; if (!dev_priv) return; - dev_priv->irq_enabled = 0; - I915_WRITE(I915REG_HWSTAM, 0xffffffff); - I915_WRITE(I915REG_INT_MASK_R, 0xffffffff); - I915_WRITE(I915REG_INT_ENABLE_R, 0x0); - - temp = I915_READ(I915REG_PIPEASTAT); - I915_WRITE(I915REG_PIPEASTAT, temp); - temp = I915_READ(I915REG_PIPEBSTAT); - I915_WRITE(I915REG_PIPEBSTAT, temp); - temp = I915_READ(I915REG_INT_IDENTITY_R); - I915_WRITE(I915REG_INT_IDENTITY_R, temp); + I915_WRITE16(I915REG_HWSTAM, 0xffff); + I915_WRITE16(I915REG_INT_MASK_R, 0xffff); + I915_WRITE16(I915REG_INT_ENABLE_R, 0x0); + + temp = I915_READ16(I915REG_INT_IDENTITY_R); + I915_WRITE16(I915REG_INT_IDENTITY_R, temp); } diff --git a/drivers/char/drm/mga_drv.c b/drivers/char/drm/mga_drv.c index 6b37909..5572939 100644 --- a/drivers/char/drm/mga_drv.c +++ b/drivers/char/drm/mga_drv.c @@ -45,16 +45,15 @@ static struct pci_device_id pciidlist[] = { static struct drm_driver driver = { .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | - DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, + DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | + DRIVER_IRQ_VBL, .dev_priv_size = sizeof(drm_mga_buf_priv_t), .load = mga_driver_load, .unload = mga_driver_unload, .lastclose = mga_driver_lastclose, .dma_quiescent = mga_driver_dma_quiescent, .device_is_agp = mga_driver_device_is_agp, - .get_vblank_counter = mga_get_vblank_counter, - .enable_vblank = mga_enable_vblank, - .disable_vblank = mga_disable_vblank, + .vblank_wait = mga_driver_vblank_wait, .irq_preinstall = mga_driver_irq_preinstall, .irq_postinstall = mga_driver_irq_postinstall, .irq_uninstall = mga_driver_irq_uninstall, diff --git a/drivers/char/drm/mga_drv.h b/drivers/char/drm/mga_drv.h index 8f7291f..f6ebd24 100644 --- a/drivers/char/drm/mga_drv.h +++ b/drivers/char/drm/mga_drv.h @@ -120,7 +120,6 @@ typedef struct drm_mga_private { u32 clear_cmd; u32 maccess; - atomic_t vbl_received; /**< Number of vblanks received. */ wait_queue_head_t fence_queue; atomic_t last_fence_retired; u32 next_fence_to_post; @@ -182,14 +181,11 @@ extern int mga_warp_install_microcode(drm_mga_private_t * dev_priv); extern int mga_warp_init(drm_mga_private_t * dev_priv); /* mga_irq.c */ -extern int mga_enable_vblank(struct drm_device *dev, int crtc); -extern void mga_disable_vblank(struct drm_device *dev, int crtc); -extern u32 mga_get_vblank_counter(struct drm_device *dev, int crtc); extern int mga_driver_fence_wait(struct drm_device * dev, unsigned int *sequence); extern int mga_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence); extern irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS); extern void mga_driver_irq_preinstall(struct drm_device * dev); -extern int mga_driver_irq_postinstall(struct drm_device * dev); +extern void mga_driver_irq_postinstall(struct drm_device * dev); extern void mga_driver_irq_uninstall(struct drm_device * dev); extern long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); diff --git a/drivers/char/drm/mga_irq.c b/drivers/char/drm/mga_irq.c index 06852fb..9302cb8 100644 --- a/drivers/char/drm/mga_irq.c +++ b/drivers/char/drm/mga_irq.c @@ -35,20 +35,6 @@ #include "mga_drm.h" #include "mga_drv.h" -u32 mga_get_vblank_counter(struct drm_device *dev, int crtc) -{ - const drm_mga_private_t *const dev_priv = - (drm_mga_private_t *) dev->dev_private; - - if (crtc != 0) { - return 0; - } - - - return atomic_read(&dev_priv->vbl_received); -} - - irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) { struct drm_device *dev = (struct drm_device *) arg; @@ -61,8 +47,9 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) /* VBLANK interrupt */ if (status & MGA_VLINEPEN) { MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR); - atomic_inc(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); + atomic_inc(&dev->vbl_received); + DRM_WAKEUP(&dev->vbl_queue); + drm_vbl_send_signals(dev); handled = 1; } @@ -91,34 +78,22 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS) return IRQ_NONE; } -int mga_enable_vblank(struct drm_device *dev, int crtc) +int mga_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence) { - drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; - - if (crtc != 0) { - DRM_ERROR("tried to enable vblank on non-existent crtc %d\n", - crtc); - return 0; - } - - MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); - return 0; -} + unsigned int cur_vblank; + int ret = 0; + /* Assume that the user has missed the current sequence number + * by about a day rather than she wants to wait for years + * using vertical blanks... + */ + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(&dev->vbl_received)) + - *sequence) <= (1 << 23))); -void mga_disable_vblank(struct drm_device *dev, int crtc) -{ - if (crtc != 0) { - DRM_ERROR("tried to disable vblank on non-existent crtc %d\n", - crtc); - } + *sequence = cur_vblank; - /* Do *NOT* disable the vertical refresh interrupt. MGA doesn't have - * a nice hardware counter that tracks the number of refreshes when - * the interrupt is disabled, and the kernel doesn't know the refresh - * rate to calculate an estimate. - */ - /* MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); */ + return ret; } int mga_driver_fence_wait(struct drm_device * dev, unsigned int *sequence) @@ -150,22 +125,14 @@ void mga_driver_irq_preinstall(struct drm_device * dev) MGA_WRITE(MGA_ICLEAR, ~0); } -int mga_driver_irq_postinstall(struct drm_device * dev) +void mga_driver_irq_postinstall(struct drm_device * dev) { drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; - int ret; - - ret = drm_vblank_init(dev, 1); - if (ret) - return ret; DRM_INIT_WAITQUEUE(&dev_priv->fence_queue); - /* Turn on soft trap interrupt. Vertical blank interrupts are enabled - * in mga_enable_vblank. - */ - MGA_WRITE(MGA_IEN, MGA_SOFTRAPEN); - return 0; + /* Turn on vertical blank interrupt and soft trap interrupt. */ + MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); } void mga_driver_irq_uninstall(struct drm_device * dev) diff --git a/drivers/char/drm/r128_drv.c b/drivers/char/drm/r128_drv.c index 2888aa0..6108e75 100644 --- a/drivers/char/drm/r128_drv.c +++ b/drivers/char/drm/r128_drv.c @@ -43,13 +43,12 @@ static struct pci_device_id pciidlist[] = { static struct drm_driver driver = { .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG | - DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, + DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | + DRIVER_IRQ_VBL, .dev_priv_size = sizeof(drm_r128_buf_priv_t), .preclose = r128_driver_preclose, .lastclose = r128_driver_lastclose, - .get_vblank_counter = r128_get_vblank_counter, - .enable_vblank = r128_enable_vblank, - .disable_vblank = r128_disable_vblank, + .vblank_wait = r128_driver_vblank_wait, .irq_preinstall = r128_driver_irq_preinstall, .irq_postinstall = r128_driver_irq_postinstall, .irq_uninstall = r128_driver_irq_uninstall, diff --git a/drivers/char/drm/r128_drv.h b/drivers/char/drm/r128_drv.h index 80af9e0..011105e 100644 --- a/drivers/char/drm/r128_drv.h +++ b/drivers/char/drm/r128_drv.h @@ -97,8 +97,6 @@ typedef struct drm_r128_private { u32 crtc_offset; u32 crtc_offset_cntl; - atomic_t vbl_received; - u32 color_fmt; unsigned int front_offset; unsigned int front_pitch; @@ -151,12 +149,11 @@ extern int r128_wait_ring(drm_r128_private_t * dev_priv, int n); extern int r128_do_cce_idle(drm_r128_private_t * dev_priv); extern int r128_do_cleanup_cce(struct drm_device * dev); -extern int r128_enable_vblank(struct drm_device *dev, int crtc); -extern void r128_disable_vblank(struct drm_device *dev, int crtc); -extern u32 r128_get_vblank_counter(struct drm_device *dev, int crtc); +extern int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence); + extern irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS); extern void r128_driver_irq_preinstall(struct drm_device * dev); -extern int r128_driver_irq_postinstall(struct drm_device * dev); +extern void r128_driver_irq_postinstall(struct drm_device * dev); extern void r128_driver_irq_uninstall(struct drm_device * dev); extern void r128_driver_lastclose(struct drm_device * dev); extern void r128_driver_preclose(struct drm_device * dev, diff --git a/drivers/char/drm/r128_irq.c b/drivers/char/drm/r128_irq.c index 5b95bd8..c76fdca 100644 --- a/drivers/char/drm/r128_irq.c +++ b/drivers/char/drm/r128_irq.c @@ -35,16 +35,6 @@ #include "r128_drm.h" #include "r128_drv.h" -u32 r128_get_vblank_counter(struct drm_device *dev, int crtc) -{ - const drm_r128_private_t *dev_priv = dev->dev_private; - - if (crtc != 0) - return 0; - - return atomic_read(&dev_priv->vbl_received); -} - irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) { struct drm_device *dev = (struct drm_device *) arg; @@ -56,38 +46,30 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) /* VBLANK interrupt */ if (status & R128_CRTC_VBLANK_INT) { R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); - atomic_inc(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); + atomic_inc(&dev->vbl_received); + DRM_WAKEUP(&dev->vbl_queue); + drm_vbl_send_signals(dev); return IRQ_HANDLED; } return IRQ_NONE; } -int r128_enable_vblank(struct drm_device *dev, int crtc) +int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence) { - drm_r128_private_t *dev_priv = dev->dev_private; - - if (crtc != 0) { - DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); - return -EINVAL; - } + unsigned int cur_vblank; + int ret = 0; - R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); - return 0; -} + /* Assume that the user has missed the current sequence number + * by about a day rather than she wants to wait for years + * using vertical blanks... + */ + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(&dev->vbl_received)) + - *sequence) <= (1 << 23))); -void r128_disable_vblank(struct drm_device *dev, int crtc) -{ - if (crtc != 0) - DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); + *sequence = cur_vblank; - /* - * FIXME: implement proper interrupt disable by using the vblank - * counter register (if available) - * - * R128_WRITE(R128_GEN_INT_CNTL, - * R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN); - */ + return ret; } void r128_driver_irq_preinstall(struct drm_device * dev) @@ -100,9 +82,12 @@ void r128_driver_irq_preinstall(struct drm_device * dev) R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); } -int r128_driver_irq_postinstall(struct drm_device * dev) +void r128_driver_irq_postinstall(struct drm_device * dev) { - return drm_vblank_init(dev, 1); + drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; + + /* Turn on VBL interrupt */ + R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); } void r128_driver_irq_uninstall(struct drm_device * dev) diff --git a/drivers/char/drm/radeon_drv.c b/drivers/char/drm/radeon_drv.c index a261031..349ac3d 100644 --- a/drivers/char/drm/radeon_drv.c +++ b/drivers/char/drm/radeon_drv.c @@ -59,7 +59,8 @@ static struct pci_device_id pciidlist[] = { static struct drm_driver driver = { .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG | - DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED, + DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED | + DRIVER_IRQ_VBL | DRIVER_IRQ_VBL2, .dev_priv_size = sizeof(drm_radeon_buf_priv_t), .load = radeon_driver_load, .firstopen = radeon_driver_firstopen, @@ -68,9 +69,8 @@ static struct drm_driver driver = { .postclose = radeon_driver_postclose, .lastclose = radeon_driver_lastclose, .unload = radeon_driver_unload, - .get_vblank_counter = radeon_get_vblank_counter, - .enable_vblank = radeon_enable_vblank, - .disable_vblank = radeon_disable_vblank, + .vblank_wait = radeon_driver_vblank_wait, + .vblank_wait2 = radeon_driver_vblank_wait2, .dri_library_name = dri_library_name, .irq_preinstall = radeon_driver_irq_preinstall, .irq_postinstall = radeon_driver_irq_postinstall, diff --git a/drivers/char/drm/radeon_drv.h b/drivers/char/drm/radeon_drv.h index b791420..173ae62 100644 --- a/drivers/char/drm/radeon_drv.h +++ b/drivers/char/drm/radeon_drv.h @@ -304,9 +304,6 @@ typedef struct drm_radeon_private { u32 scratch_ages[5]; - unsigned int crtc_last_cnt; - unsigned int crtc2_last_cnt; - /* starting from here on, data is preserved accross an open */ uint32_t flags; /* see radeon_chip_flags */ unsigned long fb_aper_offset; @@ -377,13 +374,13 @@ extern int radeon_irq_emit(struct drm_device *dev, void *data, struct drm_file * extern int radeon_irq_wait(struct drm_device *dev, void *data, struct drm_file *file_priv); extern void radeon_do_release(struct drm_device * dev); -extern u32 radeon_get_vblank_counter(struct drm_device *dev, int crtc); -extern int radeon_enable_vblank(struct drm_device *dev, int crtc); -extern void radeon_disable_vblank(struct drm_device *dev, int crtc); -extern void radeon_do_release(struct drm_device * dev); +extern int radeon_driver_vblank_wait(struct drm_device * dev, + unsigned int *sequence); +extern int radeon_driver_vblank_wait2(struct drm_device * dev, + unsigned int *sequence); extern irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS); extern void radeon_driver_irq_preinstall(struct drm_device * dev); -extern int radeon_driver_irq_postinstall(struct drm_device * dev); +extern void radeon_driver_irq_postinstall(struct drm_device * dev); extern void radeon_driver_irq_uninstall(struct drm_device * dev); extern int radeon_vblank_crtc_get(struct drm_device *dev); extern int radeon_vblank_crtc_set(struct drm_device *dev, int64_t value); @@ -561,12 +558,6 @@ extern int r300_do_cp_cmdbuf(struct drm_device * dev, ? DRM_READ32( dev_priv->ring_rptr, RADEON_SCRATCHOFF(x) ) \ : RADEON_READ( RADEON_SCRATCH_REG0 + 4*(x) ) ) -#define RADEON_CRTC_CRNT_FRAME 0x0214 -#define RADEON_CRTC2_CRNT_FRAME 0x0314 - -#define RADEON_CRTC_STATUS 0x005c -#define RADEON_CRTC2_STATUS 0x03fc - #define RADEON_GEN_INT_CNTL 0x0040 # define RADEON_CRTC_VBLANK_MASK (1 << 0) # define RADEON_CRTC2_VBLANK_MASK (1 << 9) diff --git a/drivers/char/drm/radeon_irq.c b/drivers/char/drm/radeon_irq.c index 507d6b7..009af38 100644 --- a/drivers/char/drm/radeon_irq.c +++ b/drivers/char/drm/radeon_irq.c @@ -35,61 +35,12 @@ #include "radeon_drm.h" #include "radeon_drv.h" -static void radeon_irq_set_state(struct drm_device *dev, u32 mask, int state) +static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv, + u32 mask) { - drm_radeon_private_t *dev_priv = dev->dev_private; - - if (state) - dev_priv->irq_enable_reg |= mask; - else - dev_priv->irq_enable_reg &= ~mask; - - RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg); -} - -int radeon_enable_vblank(struct drm_device *dev, int crtc) -{ - switch (crtc) { - case 0: - radeon_irq_set_state(dev, RADEON_CRTC_VBLANK_MASK, 1); - break; - case 1: - radeon_irq_set_state(dev, RADEON_CRTC2_VBLANK_MASK, 1); - break; - default: - DRM_ERROR("tried to enable vblank on non-existent crtc %d\n", - crtc); - return EINVAL; - } - - return 0; -} - -void radeon_disable_vblank(struct drm_device *dev, int crtc) -{ - switch (crtc) { - case 0: - radeon_irq_set_state(dev, RADEON_CRTC_VBLANK_MASK, 0); - break; - case 1: - radeon_irq_set_state(dev, RADEON_CRTC2_VBLANK_MASK, 0); - break; - default: - DRM_ERROR("tried to enable vblank on non-existent crtc %d\n", - crtc); - break; - } -} - -static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv) -{ - u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) & - (RADEON_SW_INT_TEST | RADEON_CRTC_VBLANK_STAT | - RADEON_CRTC2_VBLANK_STAT); - + u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) & mask; if (irqs) RADEON_WRITE(RADEON_GEN_INT_STATUS, irqs); - return irqs; } @@ -121,21 +72,39 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS) /* Only consider the bits we're interested in - others could be used * outside the DRM */ - stat = radeon_acknowledge_irqs(dev_priv); + stat = radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK | + RADEON_CRTC_VBLANK_STAT | + RADEON_CRTC2_VBLANK_STAT)); if (!stat) return IRQ_NONE; stat &= dev_priv->irq_enable_reg; /* SW interrupt */ - if (stat & RADEON_SW_INT_TEST) + if (stat & RADEON_SW_INT_TEST) { DRM_WAKEUP(&dev_priv->swi_queue); + } /* VBLANK interrupt */ - if (stat & RADEON_CRTC_VBLANK_STAT) - drm_handle_vblank(dev, 0); - if (stat & RADEON_CRTC2_VBLANK_STAT) - drm_handle_vblank(dev, 1); + if (stat & (RADEON_CRTC_VBLANK_STAT|RADEON_CRTC2_VBLANK_STAT)) { + int vblank_crtc = dev_priv->vblank_crtc; + + if ((vblank_crtc & + (DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) == + (DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) { + if (stat & RADEON_CRTC_VBLANK_STAT) + atomic_inc(&dev->vbl_received); + if (stat & RADEON_CRTC2_VBLANK_STAT) + atomic_inc(&dev->vbl_received2); + } else if (((stat & RADEON_CRTC_VBLANK_STAT) && + (vblank_crtc & DRM_RADEON_VBLANK_CRTC1)) || + ((stat & RADEON_CRTC2_VBLANK_STAT) && + (vblank_crtc & DRM_RADEON_VBLANK_CRTC2))) + atomic_inc(&dev->vbl_received); + + DRM_WAKEUP(&dev->vbl_queue); + drm_vbl_send_signals(dev); + } return IRQ_HANDLED; } @@ -175,27 +144,54 @@ static int radeon_wait_irq(struct drm_device * dev, int swi_nr) return ret; } -u32 radeon_get_vblank_counter(struct drm_device *dev, int crtc) +static int radeon_driver_vblank_do_wait(struct drm_device * dev, + unsigned int *sequence, int crtc) { - drm_radeon_private_t *dev_priv = dev->dev_private; - u32 crtc_cnt_reg, crtc_status_reg; - + drm_radeon_private_t *dev_priv = + (drm_radeon_private_t *) dev->dev_private; + unsigned int cur_vblank; + int ret = 0; + int ack = 0; + atomic_t *counter; if (!dev_priv) { DRM_ERROR("called with no initialization\n"); return -EINVAL; } - if (crtc == 0) { - crtc_cnt_reg = RADEON_CRTC_CRNT_FRAME; - crtc_status_reg = RADEON_CRTC_STATUS; - } else if (crtc == 1) { - crtc_cnt_reg = RADEON_CRTC2_CRNT_FRAME; - crtc_status_reg = RADEON_CRTC2_STATUS; - } else { + if (crtc == DRM_RADEON_VBLANK_CRTC1) { + counter = &dev->vbl_received; + ack |= RADEON_CRTC_VBLANK_STAT; + } else if (crtc == DRM_RADEON_VBLANK_CRTC2) { + counter = &dev->vbl_received2; + ack |= RADEON_CRTC2_VBLANK_STAT; + } else return -EINVAL; - } - return RADEON_READ(crtc_cnt_reg) + (RADEON_READ(crtc_status_reg) & 1); + radeon_acknowledge_irqs(dev_priv, ack); + + dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE; + + /* Assume that the user has missed the current sequence number + * by about a day rather than she wants to wait for years + * using vertical blanks... + */ + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(counter)) + - *sequence) <= (1 << 23))); + + *sequence = cur_vblank; + + return ret; +} + +int radeon_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence) +{ + return radeon_driver_vblank_do_wait(dev, sequence, DRM_RADEON_VBLANK_CRTC1); +} + +int radeon_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence) +{ + return radeon_driver_vblank_do_wait(dev, sequence, DRM_RADEON_VBLANK_CRTC2); } /* Needs the lock as it touches the ring. @@ -238,6 +234,21 @@ int radeon_irq_wait(struct drm_device *dev, void *data, struct drm_file *file_pr return radeon_wait_irq(dev, irqwait->irq_seq); } +static void radeon_enable_interrupt(struct drm_device *dev) +{ + drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private; + + dev_priv->irq_enable_reg = RADEON_SW_INT_ENABLE; + if (dev_priv->vblank_crtc & DRM_RADEON_VBLANK_CRTC1) + dev_priv->irq_enable_reg |= RADEON_CRTC_VBLANK_MASK; + + if (dev_priv->vblank_crtc & DRM_RADEON_VBLANK_CRTC2) + dev_priv->irq_enable_reg |= RADEON_CRTC2_VBLANK_MASK; + + RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg); + dev_priv->irq_enabled = 1; +} + /* drm_dma.h hooks */ void radeon_driver_irq_preinstall(struct drm_device * dev) @@ -249,27 +260,20 @@ void radeon_driver_irq_preinstall(struct drm_device * dev) RADEON_WRITE(RADEON_GEN_INT_CNTL, 0); /* Clear bits if they're already high */ - radeon_acknowledge_irqs(dev_priv); + radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK | + RADEON_CRTC_VBLANK_STAT | + RADEON_CRTC2_VBLANK_STAT)); } -int radeon_driver_irq_postinstall(struct drm_device * dev) +void radeon_driver_irq_postinstall(struct drm_device * dev) { drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private; - int ret; atomic_set(&dev_priv->swi_emitted, 0); DRM_INIT_WAITQUEUE(&dev_priv->swi_queue); - ret = drm_vblank_init(dev, 2); - if (ret) - return ret; - - dev->max_vblank_count = 0x001fffff; - - radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1); - - return 0; + radeon_enable_interrupt(dev); } void radeon_driver_irq_uninstall(struct drm_device * dev) @@ -311,5 +315,6 @@ int radeon_vblank_crtc_set(struct drm_device *dev, int64_t value) return -EINVAL; } dev_priv->vblank_crtc = (unsigned int)value; + radeon_enable_interrupt(dev); return 0; } diff --git a/drivers/char/drm/via_drv.c b/drivers/char/drm/via_drv.c index 37870a4..80c01cd 100644 --- a/drivers/char/drm/via_drv.c +++ b/drivers/char/drm/via_drv.c @@ -40,13 +40,11 @@ static struct pci_device_id pciidlist[] = { static struct drm_driver driver = { .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ | - DRIVER_IRQ_SHARED, + DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL, .load = via_driver_load, .unload = via_driver_unload, .context_dtor = via_final_context, - .get_vblank_counter = via_get_vblank_counter, - .enable_vblank = via_enable_vblank, - .disable_vblank = via_disable_vblank, + .vblank_wait = via_driver_vblank_wait, .irq_preinstall = via_driver_irq_preinstall, .irq_postinstall = via_driver_irq_postinstall, .irq_uninstall = via_driver_irq_uninstall, diff --git a/drivers/char/drm/via_drv.h b/drivers/char/drm/via_drv.h index fe67030..2daae81 100644 --- a/drivers/char/drm/via_drv.h +++ b/drivers/char/drm/via_drv.h @@ -75,7 +75,6 @@ typedef struct drm_via_private { struct timeval last_vblank; int last_vblank_valid; unsigned usec_per_vblank; - atomic_t vbl_received; drm_via_state_t hc_state; char pci_buf[VIA_PCI_BUF_SIZE]; const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE]; @@ -131,13 +130,11 @@ extern int via_init_context(struct drm_device * dev, int context); extern int via_final_context(struct drm_device * dev, int context); extern int via_do_cleanup_map(struct drm_device * dev); -extern u32 via_get_vblank_counter(struct drm_device *dev, int crtc); -extern int via_enable_vblank(struct drm_device *dev, int crtc); -extern void via_disable_vblank(struct drm_device *dev, int crtc); +extern int via_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence); extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS); extern void via_driver_irq_preinstall(struct drm_device * dev); -extern int via_driver_irq_postinstall(struct drm_device * dev); +extern void via_driver_irq_postinstall(struct drm_device * dev); extern void via_driver_irq_uninstall(struct drm_device * dev); extern int via_dma_cleanup(struct drm_device * dev); diff --git a/drivers/char/drm/via_irq.c b/drivers/char/drm/via_irq.c index f1ab6fc..c6bb978 100644 --- a/drivers/char/drm/via_irq.c +++ b/drivers/char/drm/via_irq.c @@ -92,17 +92,8 @@ static int via_irqmap_unichrome[] = {-1, -1, -1, 0, -1, 1}; static unsigned time_diff(struct timeval *now, struct timeval *then) { return (now->tv_usec >= then->tv_usec) ? - now->tv_usec - then->tv_usec : - 1000000 - (then->tv_usec - now->tv_usec); -} - -u32 via_get_vblank_counter(struct drm_device *dev, int crtc) -{ - drm_via_private_t *dev_priv = dev->dev_private; - if (crtc != 0) - return 0; - - return atomic_read(&dev_priv->vbl_received); + now->tv_usec - then->tv_usec : + 1000000 - (then->tv_usec - now->tv_usec); } irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) @@ -117,8 +108,8 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) status = VIA_READ(VIA_REG_INTERRUPT); if (status & VIA_IRQ_VBLANK_PENDING) { - atomic_inc(&dev_priv->vbl_received); - if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) { + atomic_inc(&dev->vbl_received); + if (!(atomic_read(&dev->vbl_received) & 0x0F)) { do_gettimeofday(&cur_vblank); if (dev_priv->last_vblank_valid) { dev_priv->usec_per_vblank = @@ -128,11 +119,12 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) dev_priv->last_vblank = cur_vblank; dev_priv->last_vblank_valid = 1; } - if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) { + if (!(atomic_read(&dev->vbl_received) & 0xFF)) { DRM_DEBUG("US per vblank is: %u\n", dev_priv->usec_per_vblank); } - drm_handle_vblank(dev, 0); + DRM_WAKEUP(&dev->vbl_queue); + drm_vbl_send_signals(dev); handled = 1; } @@ -171,34 +163,31 @@ static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t * dev_priv) } } -int via_enable_vblank(struct drm_device *dev, int crtc) +int via_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence) { - drm_via_private_t *dev_priv = dev->dev_private; - u32 status; + drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; + unsigned int cur_vblank; + int ret = 0; - if (crtc != 0) { - DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); + DRM_DEBUG("\n"); + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); return -EINVAL; } - status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status & VIA_IRQ_VBLANK_ENABLE); + viadrv_acknowledge_irqs(dev_priv); - VIA_WRITE8(0x83d4, 0x11); - VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30); + /* Assume that the user has missed the current sequence number + * by about a day rather than she wants to wait for years + * using vertical blanks... + */ - return 0; -} + DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + (((cur_vblank = atomic_read(&dev->vbl_received)) - + *sequence) <= (1 << 23))); -void via_disable_vblank(struct drm_device *dev, int crtc) -{ - drm_via_private_t *dev_priv = dev->dev_private; - - VIA_WRITE8(0x83d4, 0x11); - VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30); - - if (crtc != 0) - DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); + *sequence = cur_vblank; + return ret; } static int @@ -303,25 +292,23 @@ void via_driver_irq_preinstall(struct drm_device * dev) } } -int via_driver_irq_postinstall(struct drm_device * dev) +void via_driver_irq_postinstall(struct drm_device * dev) { drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; u32 status; - DRM_DEBUG("via_driver_irq_postinstall\n"); - if (!dev_priv) - return -EINVAL; + DRM_DEBUG("\n"); + if (dev_priv) { + status = VIA_READ(VIA_REG_INTERRUPT); + VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL + | dev_priv->irq_enable_mask); - drm_vblank_init(dev, 1); - status = VIA_READ(VIA_REG_INTERRUPT); - VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL - | dev_priv->irq_enable_mask); + /* Some magic, oh for some data sheets ! */ - /* Some magic, oh for some data sheets ! */ - VIA_WRITE8(0x83d4, 0x11); - VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30); + VIA_WRITE8(0x83d4, 0x11); + VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30); - return 0; + } } void via_driver_irq_uninstall(struct drm_device * dev) diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 8d6c208..efd0b4d 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -112,3 +112,12 @@ config HW_RANDOM_PASEMI If unsure, say Y. +config HW_RANDOM_VIRTIO + tristate "VirtIO Random Number Generator support" + depends on HW_RANDOM && VIRTIO + ---help--- + This driver provides kernel-side support for the virtual Random Number + Generator hardware. + + To compile this driver as a module, choose M here: the + module will be called virtio-rng. If unsure, say N. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index c8b7300..b4940dd 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o +obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c new file mode 100644 index 0000000..d0e563e --- /dev/null +++ b/drivers/char/hw_random/virtio-rng.c @@ -0,0 +1,155 @@ +/* + * Randomness driver for virtio + * Copyright (C) 2007, 2008 Rusty Russell IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/err.h> +#include <linux/hw_random.h> +#include <linux/scatterlist.h> +#include <linux/spinlock.h> +#include <linux/virtio.h> +#include <linux/virtio_rng.h> + +/* The host will fill any buffer we give it with sweet, sweet randomness. We + * give it 64 bytes at a time, and the hwrng framework takes it 4 bytes at a + * time. */ +#define RANDOM_DATA_SIZE 64 + +static struct virtqueue *vq; +static u32 *random_data; +static unsigned int data_left; +static DECLARE_COMPLETION(have_data); + +static void random_recv_done(struct virtqueue *vq) +{ + int len; + + /* We never get spurious callbacks. */ + if (!vq->vq_ops->get_buf(vq, &len)) + BUG(); + + data_left = len / sizeof(random_data[0]); + complete(&have_data); +} + +static void register_buffer(void) +{ + struct scatterlist sg; + + sg_init_one(&sg, random_data, RANDOM_DATA_SIZE); + /* There should always be room for one buffer. */ + if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) != 0) + BUG(); + vq->vq_ops->kick(vq); +} + +/* At least we don't udelay() in a loop like some other drivers. */ +static int virtio_data_present(struct hwrng *rng, int wait) +{ + if (data_left) + return 1; + + if (!wait) + return 0; + + wait_for_completion(&have_data); + return 1; +} + +/* virtio_data_present() must have succeeded before this is called. */ +static int virtio_data_read(struct hwrng *rng, u32 *data) +{ + BUG_ON(!data_left); + + *data = random_data[--data_left]; + + if (!data_left) { + init_completion(&have_data); + register_buffer(); + } + return sizeof(*data); +} + +static struct hwrng virtio_hwrng = { + .name = "virtio", + .data_present = virtio_data_present, + .data_read = virtio_data_read, +}; + +static int virtrng_probe(struct virtio_device *vdev) +{ + int err; + + /* We expect a single virtqueue. */ + vq = vdev->config->find_vq(vdev, 0, random_recv_done); + if (IS_ERR(vq)) + return PTR_ERR(vq); + + err = hwrng_register(&virtio_hwrng); + if (err) { + vdev->config->del_vq(vq); + return err; + } + + register_buffer(); + return 0; +} + +static void virtrng_remove(struct virtio_device *vdev) +{ + vdev->config->reset(vdev); + hwrng_unregister(&virtio_hwrng); + vdev->config->del_vq(vq); +} + +static struct virtio_device_id id_table[] = { + { VIRTIO_ID_RNG, VIRTIO_DEV_ANY_ID }, + { 0 }, +}; + +static struct virtio_driver virtio_rng = { + .driver.name = KBUILD_MODNAME, + .driver.owner = THIS_MODULE, + .id_table = id_table, + .probe = virtrng_probe, + .remove = __devexit_p(virtrng_remove), +}; + +static int __init init(void) +{ + int err; + + random_data = kmalloc(RANDOM_DATA_SIZE, GFP_KERNEL); + if (!random_data) + return -ENOMEM; + + err = register_virtio_driver(&virtio_rng); + if (err) + kfree(random_data); + return err; +} + +static void __exit fini(void) +{ + kfree(random_data); + unregister_virtio_driver(&virtio_rng); +} +module_init(init); +module_exit(fini); + +MODULE_DEVICE_TABLE(virtio, id_table); +MODULE_DESCRIPTION("Virtio random number driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/char/ip2/Makefile b/drivers/char/ip2/Makefile index 6bfe254..939618f 100644 --- a/drivers/char/ip2/Makefile +++ b/drivers/char/ip2/Makefile @@ -2,7 +2,7 @@ # Makefile for the Computone IntelliPort Plus Driver # -obj-$(CONFIG_COMPUTONE) += ip2.o ip2main.o +obj-$(CONFIG_COMPUTONE) += ip2.o -ip2-objs := ip2base.o +ip2-objs := ip2base.o ip2main.o diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 70957ac..c12cf8f 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -346,27 +346,6 @@ have_requested_irq( char irq ) } /******************************************************************************/ -/* Function: init_module() */ -/* Parameters: None */ -/* Returns: Success (0) */ -/* */ -/* Description: */ -/* This is a required entry point for an installable module. It simply calls */ -/* the driver initialisation function and returns what it returns. */ -/******************************************************************************/ -#ifdef MODULE -static int __init -ip2_init_module(void) -{ -#ifdef IP2DEBUG_INIT - printk (KERN_DEBUG "Loading module ...\n" ); -#endif - return 0; -} -module_init(ip2_init_module); -#endif /* MODULE */ - -/******************************************************************************/ /* Function: cleanup_module() */ /* Parameters: None */ /* Returns: Nothing */ @@ -779,8 +758,6 @@ out: return err; } -EXPORT_SYMBOL(ip2_loadmain); - /******************************************************************************/ /* Function: ip2_init_board() */ /* Parameters: Index of board in configuration structure */ diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index 19105ec..8096389 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -282,16 +282,20 @@ static int opost(unsigned char c, struct tty_struct *tty) if (O_ONLRET(tty)) tty->column = 0; if (O_ONLCR(tty)) { - if (space < 2) + if (space < 2) { + unlock_kernel(); return -1; + } tty_put_char(tty, '\r'); tty->column = 0; } tty->canon_column = tty->column; break; case '\r': - if (O_ONOCR(tty) && tty->column == 0) + if (O_ONOCR(tty) && tty->column == 0) { + unlock_kernel(); return 0; + } if (O_OCRNL(tty)) { c = '\n'; if (O_ONLRET(tty)) @@ -303,10 +307,13 @@ static int opost(unsigned char c, struct tty_struct *tty) case '\t': spaces = 8 - (tty->column & 7); if (O_TABDLY(tty) == XTABS) { - if (space < spaces) + if (space < spaces) { + unlock_kernel(); return -1; + } tty->column += spaces; tty->ops->write(tty, " ", spaces); + unlock_kernel(); return 0; } tty->column += spaces; diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c index 53b3d44..55a9589 100644 --- a/drivers/char/snsc_event.c +++ b/drivers/char/snsc_event.c @@ -17,7 +17,7 @@ #include <linux/interrupt.h> #include <linux/sched.h> -#include <linux/byteorder/generic.h> +#include <asm/byteorder.h> #include <asm/sn/sn_sal.h> #include <asm/unaligned.h> #include "snsc.h" diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index 9e9bad8b..dbce126 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -402,6 +402,7 @@ static struct sysrq_key_op *sysrq_key_table[36] = { &sysrq_showstate_blocked_op, /* w */ /* x: May be registered on ppc/powerpc for xmon */ NULL, /* x */ + /* y: May be registered on sparc64 for global register dump */ NULL, /* y */ NULL /* z */ }; diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c index 3d3e1c2..65fb848 100644 --- a/drivers/char/viocons.c +++ b/drivers/char/viocons.c @@ -7,7 +7,7 @@ * Authors: Dave Boutcher <boutcher@us.ibm.com> * Ryan Arnold <ryanarn@us.ibm.com> * Colin Devilbiss <devilbis@us.ibm.com> - * Stephen Rothwell <sfr@au1.ibm.com> + * Stephen Rothwell * * (C) Copyright 2000, 2001, 2002, 2003, 2004 IBM Corporation * diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index 58aad638..c39ddaf 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -6,7 +6,7 @@ * Authors: Dave Boutcher <boutcher@us.ibm.com> * Ryan Arnold <ryanarn@us.ibm.com> * Colin Devilbiss <devilbis@us.ibm.com> - * Stephen Rothwell <sfr@au1.ibm.com> + * Stephen Rothwell * * (C) Copyright 2000-2004 IBM Corporation * diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c index e122a0e..f17ac04 100644 --- a/drivers/char/vme_scc.c +++ b/drivers/char/vme_scc.c @@ -89,9 +89,7 @@ static void scc_break_ctl(struct tty_struct *tty, int break_state); static struct tty_driver *scc_driver; -struct scc_port scc_ports[2]; - -int scc_initialized = 0; +static struct scc_port scc_ports[2]; /*--------------------------------------------------------------------------- * Interface from generic_serial.c back here |
