From 5380e9293b865d88de04de6e5324726d8c5b53c9 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 4 Oct 2013 14:53:36 +0300 Subject: [PATCH] drm: Collect per-crtc vblank stuff to a struct MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit drm_vblank_init() is too ugly. Make it a bit easier on the eye by collecting all the per-crtc vblank counters, timestamps etc. to a structure and just allocate an array of those. Signed-off-by: Ville Syrjälä Reviewed-by: Daniel Vetter Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_info.c | 6 +- drivers/gpu/drm/drm_irq.c | 138 ++++++++++------------------- drivers/gpu/drm/gma500/psb_irq.c | 22 ++--- drivers/gpu/drm/i915/intel_pm.c | 2 +- drivers/gpu/drm/omapdrm/omap_irq.c | 6 +- include/drm/drmP.h | 26 +++--- 6 files changed, 81 insertions(+), 119 deletions(-) diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c index 53298320080b..7d5a152eeb02 100644 --- a/drivers/gpu/drm/drm_info.c +++ b/drivers/gpu/drm/drm_info.c @@ -163,13 +163,13 @@ int drm_vblank_info(struct seq_file *m, void *data) mutex_lock(&dev->struct_mutex); for (crtc = 0; crtc < dev->num_crtcs; crtc++) { seq_printf(m, "CRTC %d enable: %d\n", - crtc, atomic_read(&dev->vblank_refcount[crtc])); + crtc, atomic_read(&dev->vblank[crtc].refcount)); seq_printf(m, "CRTC %d counter: %d\n", crtc, drm_vblank_count(dev, crtc)); seq_printf(m, "CRTC %d last wait: %d\n", - crtc, dev->last_vblank_wait[crtc]); + crtc, dev->vblank[crtc].last_wait); seq_printf(m, "CRTC %d in modeset: %d\n", - crtc, dev->vblank_inmodeset[crtc]); + crtc, dev->vblank[crtc].inmodeset); } mutex_unlock(&dev->struct_mutex); return 0; diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 49680a8ab96a..dea859f20035 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -43,9 +43,8 @@ #include /* Access macro for slots in vblank timestamp ringbuffer. */ -#define vblanktimestamp(dev, crtc, count) ( \ - (dev)->_vblank_time[(crtc) * DRM_VBLANKTIME_RBSIZE + \ - ((count) % DRM_VBLANKTIME_RBSIZE)]) +#define vblanktimestamp(dev, crtc, count) \ + ((dev)->vblank[crtc].time[(count) % DRM_VBLANKTIME_RBSIZE]) /* Retry timestamp calculation up to 3 times to satisfy * drm_timestamp_precision before giving up. @@ -89,8 +88,7 @@ int drm_irq_by_busid(struct drm_device *dev, void *data, */ static void clear_vblank_timestamps(struct drm_device *dev, int crtc) { - memset(&dev->_vblank_time[crtc * DRM_VBLANKTIME_RBSIZE], 0, - DRM_VBLANKTIME_RBSIZE * sizeof(struct timeval)); + memset(dev->vblank[crtc].time, 0, sizeof(dev->vblank[crtc].time)); } /* @@ -115,7 +113,7 @@ static void vblank_disable_and_save(struct drm_device *dev, int crtc) spin_lock_irqsave(&dev->vblank_time_lock, irqflags); dev->driver->disable_vblank(dev, crtc); - dev->vblank_enabled[crtc] = false; + dev->vblank[crtc].enabled = false; /* No further vblank irq's will be processed after * this point. Get current hardware vblank count and @@ -130,9 +128,9 @@ static void vblank_disable_and_save(struct drm_device *dev, int crtc) * delayed gpu counter increment. */ do { - dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc); + dev->vblank[crtc].last = dev->driver->get_vblank_counter(dev, crtc); vblrc = drm_get_last_vbltimestamp(dev, crtc, &tvblank, 0); - } while (dev->last_vblank[crtc] != dev->driver->get_vblank_counter(dev, crtc) && (--count) && vblrc); + } while (dev->vblank[crtc].last != dev->driver->get_vblank_counter(dev, crtc) && (--count) && vblrc); if (!count) vblrc = 0; @@ -140,7 +138,7 @@ static void vblank_disable_and_save(struct drm_device *dev, int crtc) /* Compute time difference to stored timestamp of last vblank * as updated by last invocation of drm_handle_vblank() in vblank irq. */ - vblcount = atomic_read(&dev->_vblank_count[crtc]); + vblcount = atomic_read(&dev->vblank[crtc].count); diff_ns = timeval_to_ns(&tvblank) - timeval_to_ns(&vblanktimestamp(dev, crtc, vblcount)); @@ -157,7 +155,7 @@ static void vblank_disable_and_save(struct drm_device *dev, int crtc) * hope for the best. */ if ((vblrc > 0) && (abs64(diff_ns) > 1000000)) { - atomic_inc(&dev->_vblank_count[crtc]); + atomic_inc(&dev->vblank[crtc].count); smp_mb__after_atomic_inc(); } @@ -178,8 +176,8 @@ static void vblank_disable_fn(unsigned long arg) 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]) { + if (atomic_read(&dev->vblank[i].refcount) == 0 && + dev->vblank[i].enabled) { DRM_DEBUG("disabling vblank on crtc %d\n", i); vblank_disable_and_save(dev, i); } @@ -197,14 +195,7 @@ void drm_vblank_cleanup(struct drm_device *dev) vblank_disable_fn((unsigned long)dev); - kfree(dev->vbl_queue); - kfree(dev->_vblank_count); - kfree(dev->vblank_refcount); - kfree(dev->vblank_enabled); - kfree(dev->last_vblank); - kfree(dev->last_vblank_wait); - kfree(dev->vblank_inmodeset); - kfree(dev->_vblank_time); + kfree(dev->vblank); dev->num_crtcs = 0; } @@ -221,40 +212,12 @@ int drm_vblank_init(struct drm_device *dev, int num_crtcs) dev->num_crtcs = num_crtcs; - dev->vbl_queue = kmalloc(sizeof(wait_queue_head_t) * num_crtcs, - GFP_KERNEL); - if (!dev->vbl_queue) + dev->vblank = kcalloc(num_crtcs, sizeof(*dev->vblank), GFP_KERNEL); + if (!dev->vblank) goto err; - dev->_vblank_count = kmalloc(sizeof(atomic_t) * num_crtcs, GFP_KERNEL); - if (!dev->_vblank_count) - goto err; - - dev->vblank_refcount = kmalloc(sizeof(atomic_t) * num_crtcs, - GFP_KERNEL); - if (!dev->vblank_refcount) - goto err; - - dev->vblank_enabled = kcalloc(num_crtcs, sizeof(bool), GFP_KERNEL); - if (!dev->vblank_enabled) - goto err; - - dev->last_vblank = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL); - if (!dev->last_vblank) - goto err; - - dev->last_vblank_wait = kcalloc(num_crtcs, sizeof(u32), GFP_KERNEL); - if (!dev->last_vblank_wait) - goto err; - - dev->vblank_inmodeset = kcalloc(num_crtcs, sizeof(int), GFP_KERNEL); - if (!dev->vblank_inmodeset) - goto err; - - dev->_vblank_time = kcalloc(num_crtcs * DRM_VBLANKTIME_RBSIZE, - sizeof(struct timeval), GFP_KERNEL); - if (!dev->_vblank_time) - goto err; + for (i = 0; i < num_crtcs; i++) + init_waitqueue_head(&dev->vblank[i].queue); DRM_INFO("Supports vblank timestamp caching Rev 1 (10.10.2010).\n"); @@ -264,13 +227,6 @@ int drm_vblank_init(struct drm_device *dev, int num_crtcs) else DRM_INFO("No driver support for vblank timestamp query.\n"); - /* Zero per-crtc vblank stuff */ - for (i = 0; i < num_crtcs; i++) { - init_waitqueue_head(&dev->vbl_queue[i]); - atomic_set(&dev->_vblank_count[i], 0); - atomic_set(&dev->vblank_refcount[i], 0); - } - dev->vblank_disable_allowed = false; return 0; @@ -411,9 +367,9 @@ int drm_irq_uninstall(struct drm_device *dev) if (dev->num_crtcs) { spin_lock_irqsave(&dev->vbl_lock, irqflags); for (i = 0; i < dev->num_crtcs; i++) { - DRM_WAKEUP(&dev->vbl_queue[i]); - dev->vblank_enabled[i] = false; - dev->last_vblank[i] = + DRM_WAKEUP(&dev->vblank[i].queue); + dev->vblank[i].enabled = false; + dev->vblank[i].last = dev->driver->get_vblank_counter(dev, i); } spin_unlock_irqrestore(&dev->vbl_lock, irqflags); @@ -796,7 +752,7 @@ EXPORT_SYMBOL(drm_get_last_vbltimestamp); */ u32 drm_vblank_count(struct drm_device *dev, int crtc) { - return atomic_read(&dev->_vblank_count[crtc]); + return atomic_read(&dev->vblank[crtc].count); } EXPORT_SYMBOL(drm_vblank_count); @@ -825,10 +781,10 @@ u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, * a seqlock. */ do { - cur_vblank = atomic_read(&dev->_vblank_count[crtc]); + cur_vblank = atomic_read(&dev->vblank[crtc].count); *vblanktime = vblanktimestamp(dev, crtc, cur_vblank); smp_rmb(); - } while (cur_vblank != atomic_read(&dev->_vblank_count[crtc])); + } while (cur_vblank != atomic_read(&dev->vblank[crtc].count)); return cur_vblank; } @@ -915,12 +871,12 @@ static void drm_update_vblank_count(struct drm_device *dev, int crtc) } while (cur_vblank != dev->driver->get_vblank_counter(dev, crtc)); /* Deal with counter wrap */ - diff = cur_vblank - dev->last_vblank[crtc]; - if (cur_vblank < dev->last_vblank[crtc]) { + diff = cur_vblank - dev->vblank[crtc].last; + if (cur_vblank < dev->vblank[crtc].last) { diff += dev->max_vblank_count; DRM_DEBUG("last_vblank[%d]=0x%x, cur_vblank=0x%x => diff=0x%x\n", - crtc, dev->last_vblank[crtc], cur_vblank, diff); + crtc, dev->vblank[crtc].last, cur_vblank, diff); } DRM_DEBUG("enabling vblank interrupts on crtc %d, missed %d\n", @@ -931,12 +887,12 @@ static void drm_update_vblank_count(struct drm_device *dev, int crtc) * reinitialize delayed at next vblank interrupt in that case. */ if (rc) { - tslot = atomic_read(&dev->_vblank_count[crtc]) + diff; + tslot = atomic_read(&dev->vblank[crtc].count) + diff; vblanktimestamp(dev, crtc, tslot) = t_vblank; } smp_mb__before_atomic_inc(); - atomic_add(diff, &dev->_vblank_count[crtc]); + atomic_add(diff, &dev->vblank[crtc].count); smp_mb__after_atomic_inc(); } @@ -958,9 +914,9 @@ int drm_vblank_get(struct drm_device *dev, int crtc) 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) { + if (atomic_add_return(1, &dev->vblank[crtc].refcount) == 1) { spin_lock_irqsave(&dev->vblank_time_lock, irqflags2); - if (!dev->vblank_enabled[crtc]) { + if (!dev->vblank[crtc].enabled) { /* Enable vblank irqs under vblank_time_lock protection. * All vblank count & timestamp updates are held off * until we are done reinitializing master counter and @@ -971,16 +927,16 @@ int drm_vblank_get(struct drm_device *dev, int crtc) DRM_DEBUG("enabling vblank on crtc %d, ret: %d\n", crtc, ret); if (ret) - atomic_dec(&dev->vblank_refcount[crtc]); + atomic_dec(&dev->vblank[crtc].refcount); else { - dev->vblank_enabled[crtc] = true; + dev->vblank[crtc].enabled = true; drm_update_vblank_count(dev, crtc); } } spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags2); } else { - if (!dev->vblank_enabled[crtc]) { - atomic_dec(&dev->vblank_refcount[crtc]); + if (!dev->vblank[crtc].enabled) { + atomic_dec(&dev->vblank[crtc].refcount); ret = -EINVAL; } } @@ -1000,10 +956,10 @@ EXPORT_SYMBOL(drm_vblank_get); */ void drm_vblank_put(struct drm_device *dev, int crtc) { - BUG_ON(atomic_read(&dev->vblank_refcount[crtc]) == 0); + BUG_ON(atomic_read(&dev->vblank[crtc].refcount) == 0); /* Last user schedules interrupt disable */ - if (atomic_dec_and_test(&dev->vblank_refcount[crtc]) && + if (atomic_dec_and_test(&dev->vblank[crtc].refcount) && (drm_vblank_offdelay > 0)) mod_timer(&dev->vblank_disable_timer, jiffies + ((drm_vblank_offdelay * DRM_HZ)/1000)); @@ -1026,7 +982,7 @@ void drm_vblank_off(struct drm_device *dev, int crtc) spin_lock_irqsave(&dev->vbl_lock, irqflags); vblank_disable_and_save(dev, crtc); - DRM_WAKEUP(&dev->vbl_queue[crtc]); + DRM_WAKEUP(&dev->vblank[crtc].queue); /* Send any queued vblank events, lest the natives grow disquiet */ seq = drm_vblank_count_and_time(dev, crtc, &now); @@ -1068,10 +1024,10 @@ void drm_vblank_pre_modeset(struct drm_device *dev, int crtc) * to avoid corrupting the count if multiple, mismatch calls occur), * so that interrupts remain enabled in the interim. */ - if (!dev->vblank_inmodeset[crtc]) { - dev->vblank_inmodeset[crtc] = 0x1; + if (!dev->vblank[crtc].inmodeset) { + dev->vblank[crtc].inmodeset = 0x1; if (drm_vblank_get(dev, crtc) == 0) - dev->vblank_inmodeset[crtc] |= 0x2; + dev->vblank[crtc].inmodeset |= 0x2; } } EXPORT_SYMBOL(drm_vblank_pre_modeset); @@ -1084,15 +1040,15 @@ void drm_vblank_post_modeset(struct drm_device *dev, int crtc) if (!dev->num_crtcs) return; - if (dev->vblank_inmodeset[crtc]) { + if (dev->vblank[crtc].inmodeset) { spin_lock_irqsave(&dev->vbl_lock, irqflags); dev->vblank_disable_allowed = true; spin_unlock_irqrestore(&dev->vbl_lock, irqflags); - if (dev->vblank_inmodeset[crtc] & 0x2) + if (dev->vblank[crtc].inmodeset & 0x2) drm_vblank_put(dev, crtc); - dev->vblank_inmodeset[crtc] = 0; + dev->vblank[crtc].inmodeset = 0; } } EXPORT_SYMBOL(drm_vblank_post_modeset); @@ -1289,8 +1245,8 @@ int drm_wait_vblank(struct drm_device *dev, void *data, DRM_DEBUG("waiting on vblank count %d, crtc %d\n", vblwait->request.sequence, crtc); - dev->last_vblank_wait[crtc] = vblwait->request.sequence; - DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ, + dev->vblank[crtc].last_wait = vblwait->request.sequence; + DRM_WAIT_ON(ret, dev->vblank[crtc].queue, 3 * DRM_HZ, (((drm_vblank_count(dev, crtc) - vblwait->request.sequence) <= (1 << 23)) || !dev->irq_enabled)); @@ -1368,7 +1324,7 @@ bool drm_handle_vblank(struct drm_device *dev, int crtc) spin_lock_irqsave(&dev->vblank_time_lock, irqflags); /* Vblank irq handling disabled. Nothing to do. */ - if (!dev->vblank_enabled[crtc]) { + if (!dev->vblank[crtc].enabled) { spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags); return false; } @@ -1378,7 +1334,7 @@ bool drm_handle_vblank(struct drm_device *dev, int crtc) */ /* Get current timestamp and count. */ - vblcount = atomic_read(&dev->_vblank_count[crtc]); + vblcount = atomic_read(&dev->vblank[crtc].count); drm_get_last_vbltimestamp(dev, crtc, &tvblank, DRM_CALLED_FROM_VBLIRQ); /* Compute time difference to timestamp of last vblank */ @@ -1402,14 +1358,14 @@ bool drm_handle_vblank(struct drm_device *dev, int crtc) * the timestamp computed above. */ smp_mb__before_atomic_inc(); - atomic_inc(&dev->_vblank_count[crtc]); + atomic_inc(&dev->vblank[crtc].count); smp_mb__after_atomic_inc(); } else { DRM_DEBUG("crtc %d: Redundant vblirq ignored. diff_ns = %d\n", crtc, (int) diff_ns); } - DRM_WAKEUP(&dev->vbl_queue[crtc]); + DRM_WAKEUP(&dev->vblank[crtc].queue); drm_handle_vblank_events(dev, crtc); spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags); diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c index 029eccf30137..ba4830342d34 100644 --- a/drivers/gpu/drm/gma500/psb_irq.c +++ b/drivers/gpu/drm/gma500/psb_irq.c @@ -271,15 +271,15 @@ void psb_irq_preinstall(struct drm_device *dev) if (gma_power_is_on(dev)) PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM); - if (dev->vblank_enabled[0]) + if (dev->vblank[0].enabled) dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEA_FLAG; - if (dev->vblank_enabled[1]) + if (dev->vblank[1].enabled) dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEB_FLAG; /* FIXME: Handle Medfield irq mask - if (dev->vblank_enabled[1]) + if (dev->vblank[1].enabled) dev_priv->vdc_irq_mask |= _MDFLD_PIPEB_EVENT_FLAG; - if (dev->vblank_enabled[2]) + if (dev->vblank[2].enabled) dev_priv->vdc_irq_mask |= _MDFLD_PIPEC_EVENT_FLAG; */ @@ -305,17 +305,17 @@ int psb_irq_postinstall(struct drm_device *dev) PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R); PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM); - if (dev->vblank_enabled[0]) + if (dev->vblank[0].enabled) psb_enable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE); else psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE); - if (dev->vblank_enabled[1]) + if (dev->vblank[1].enabled) psb_enable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE); else psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE); - if (dev->vblank_enabled[2]) + if (dev->vblank[2].enabled) psb_enable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE); else psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE); @@ -339,13 +339,13 @@ void psb_irq_uninstall(struct drm_device *dev) PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM); - if (dev->vblank_enabled[0]) + if (dev->vblank[0].enabled) psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE); - if (dev->vblank_enabled[1]) + if (dev->vblank[1].enabled) psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE); - if (dev->vblank_enabled[2]) + if (dev->vblank[2].enabled) psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE); dev_priv->vdc_irq_mask &= _PSB_IRQ_SGX_FLAG | @@ -456,7 +456,7 @@ static int psb_vblank_do_wait(struct drm_device *dev, { unsigned int cur_vblank; int ret = 0; - DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, + DRM_WAIT_ON(ret, dev->vblank.queue, 3 * DRM_HZ, (((cur_vblank = atomic_read(counter)) - *sequence) <= (1 << 23))); *sequence = cur_vblank; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 4692f8cb7724..3907c60a72de 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5340,7 +5340,7 @@ static void __intel_set_power_well(struct drm_device *dev, bool enable) spin_lock_irqsave(&dev->vbl_lock, irqflags); for_each_pipe(p) if (p != PIPE_A) - dev->last_vblank[p] = 0; + dev->vblank[p].last = 0; spin_unlock_irqrestore(&dev->vbl_lock, irqflags); } } diff --git a/drivers/gpu/drm/omapdrm/omap_irq.c b/drivers/gpu/drm/omapdrm/omap_irq.c index 3cbe92c72fd5..261b227e4692 100644 --- a/drivers/gpu/drm/omapdrm/omap_irq.c +++ b/drivers/gpu/drm/omapdrm/omap_irq.c @@ -307,9 +307,9 @@ int omap_drm_irq_uninstall(struct drm_device *dev) if (dev->num_crtcs) { spin_lock_irqsave(&dev->vbl_lock, irqflags); for (i = 0; i < dev->num_crtcs; i++) { - DRM_WAKEUP(&dev->vbl_queue[i]); - dev->vblank_enabled[i] = false; - dev->last_vblank[i] = + DRM_WAKEUP(&dev->vblank[i].queue); + dev->vblank[i].enabled = false; + dev->vblank[i].last = dev->driver->get_vblank_counter(dev, i); } spin_unlock_irqrestore(&dev->vbl_lock, irqflags); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 2d390abbf550..7198febd9d8e 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1078,6 +1078,19 @@ struct drm_pending_vblank_event { struct drm_event_vblank event; }; +struct drm_vblank_crtc { + wait_queue_head_t queue; /**< VBLANK wait queue */ + struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ + atomic_t count; /**< number of VBLANK interrupts */ + atomic_t refcount; /* number of users of vblank interruptsper crtc */ + u32 last; /* protected by dev->vbl_lock, used */ + /* for wraparound handling */ + u32 last_wait; /* Last vblank seqno waited per CRTC */ + unsigned int inmodeset; /* Display driver is setting mode */ + bool enabled; /* so we don't call enable more than + once per disable */ +}; + /** * DRM device structure. This structure represent a complete card that * may contain multiple heads. @@ -1153,18 +1166,11 @@ struct drm_device { */ bool vblank_disable_allowed; - 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) */ - struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ + /* array of size num_crtcs */ + struct drm_vblank_crtc *vblank; + spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ spinlock_t vbl_lock; - atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ - u32 *last_vblank; /* protected by dev->vbl_lock, used */ - /* for wraparound handling */ - bool *vblank_enabled; /* so we don't call enable more than - once per disable */ - unsigned int *vblank_inmodeset; /* Display driver is setting mode */ - u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ struct timer_list vblank_disable_timer; u32 max_vblank_count; /**< size of vblank counter register */ -- 2.20.1