#include <linux/export.h>
/* Access macro for slots in vblank timestamp ringbuffer. */
-#define vblanktimestamp(dev, crtc, count) \
- ((dev)->vblank[crtc].time[(count) % DRM_VBLANKTIME_RBSIZE])
+#define vblanktimestamp(dev, pipe, count) \
+ ((dev)->vblank[pipe].time[(count) % DRM_VBLANKTIME_RBSIZE])
/* Retry timestamp calculation up to 3 times to satisfy
* drm_timestamp_precision before giving up.
#define DRM_REDUNDANT_VBLIRQ_THRESH_NS 1000000
static bool
-drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
+drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe,
struct timeval *tvblank, unsigned flags);
static unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600);
module_param_named(timestamp_monotonic, drm_timestamp_monotonic, int, 0600);
-static void store_vblank(struct drm_device *dev, int crtc,
+static void store_vblank(struct drm_device *dev, unsigned int pipe,
u32 vblank_count_inc,
struct timeval *t_vblank)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
u32 tslot;
assert_spin_locked(&dev->vblank_time_lock);
* the latching of vblank->count below.
*/
tslot = vblank->count + vblank_count_inc;
- vblanktimestamp(dev, crtc, tslot) = *t_vblank;
+ vblanktimestamp(dev, pipe, tslot) = *t_vblank;
}
/*
/**
* drm_update_vblank_count - update the master vblank counter
* @dev: DRM device
- * @crtc: counter to update
+ * @pipe: counter to update
*
* Call back into the driver to update the appropriate vblank counter
- * (specified by @crtc). Deal with wraparound, if it occurred, and
+ * (specified by @pipe). Deal with wraparound, if it occurred, and
* update the last read value so we can deal with wraparound on the next
* call if necessary.
*
* Note: caller must hold dev->vbl_lock since this reads & writes
* device vblank fields.
*/
-static void drm_update_vblank_count(struct drm_device *dev, int crtc)
+static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
+ unsigned long flags)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
u32 cur_vblank, diff;
bool rc;
struct timeval t_vblank;
+ int count = DRM_TIMESTAMP_MAXRETRIES;
/*
* Interrupts were disabled prior to this call, so deal with counter
* corresponding vblank timestamp.
*/
do {
- cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
- rc = drm_get_last_vbltimestamp(dev, crtc, &t_vblank, 0);
- } while (cur_vblank != dev->driver->get_vblank_counter(dev, crtc));
+ cur_vblank = dev->driver->get_vblank_counter(dev, pipe);
+ rc = drm_get_last_vbltimestamp(dev, pipe, &t_vblank, flags);
+ } while (cur_vblank != dev->driver->get_vblank_counter(dev, pipe) && --count > 0);
/* Deal with counter wrap */
diff = cur_vblank - vblank->last;
if (cur_vblank < vblank->last) {
diff += dev->max_vblank_count + 1;
- DRM_DEBUG("last_vblank[%d]=0x%x, cur_vblank=0x%x => diff=0x%x\n",
- crtc, vblank->last, cur_vblank, diff);
+ DRM_DEBUG("last_vblank[%u]=0x%x, cur_vblank=0x%x => diff=0x%x\n",
+ pipe, vblank->last, cur_vblank, diff);
}
- DRM_DEBUG("updating vblank count on crtc %d, missed %d\n",
- crtc, diff);
+ DRM_DEBUG("updating vblank count on crtc %u, missed %d\n",
+ pipe, diff);
if (diff == 0)
return;
if (!rc)
t_vblank = (struct timeval) {0, 0};
- store_vblank(dev, crtc, diff, &t_vblank);
+ store_vblank(dev, pipe, diff, &t_vblank);
}
/*
* are preserved, even if there are any spurious vblank irq's after
* disable.
*/
-static void vblank_disable_and_save(struct drm_device *dev, int crtc)
+static void vblank_disable_and_save(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
unsigned long irqflags;
u32 vblcount;
s64 diff_ns;
* vblank interrupt is disabled.
*/
if (!vblank->enabled &&
- drm_get_last_vbltimestamp(dev, crtc, &tvblank, 0)) {
- drm_update_vblank_count(dev, crtc);
+ drm_get_last_vbltimestamp(dev, pipe, &tvblank, 0)) {
+ drm_update_vblank_count(dev, pipe, 0);
spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
return;
}
* hardware potentially runtime suspended.
*/
if (vblank->enabled) {
- dev->driver->disable_vblank(dev, crtc);
+ dev->driver->disable_vblank(dev, pipe);
vblank->enabled = false;
}
* delayed gpu counter increment.
*/
do {
- vblank->last = dev->driver->get_vblank_counter(dev, crtc);
- vblrc = drm_get_last_vbltimestamp(dev, crtc, &tvblank, 0);
- } while (vblank->last != dev->driver->get_vblank_counter(dev, crtc) && (--count) && vblrc);
+ vblank->last = dev->driver->get_vblank_counter(dev, pipe);
+ vblrc = drm_get_last_vbltimestamp(dev, pipe, &tvblank, 0);
+ } while (vblank->last != dev->driver->get_vblank_counter(dev, pipe) && (--count) && vblrc);
if (!count)
vblrc = 0;
*/
vblcount = vblank->count;
diff_ns = timeval_to_ns(&tvblank) -
- timeval_to_ns(&vblanktimestamp(dev, crtc, vblcount));
+ timeval_to_ns(&vblanktimestamp(dev, pipe, vblcount));
/* If there is at least 1 msec difference between the last stored
* timestamp and tvblank, then we are currently executing our
* hope for the best.
*/
if (vblrc && (abs64(diff_ns) > 1000000))
- store_vblank(dev, crtc, 1, &tvblank);
+ store_vblank(dev, pipe, 1, &tvblank);
spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
}
{
struct drm_vblank_crtc *vblank = (void *)arg;
struct drm_device *dev = vblank->dev;
+ unsigned int pipe = vblank->pipe;
unsigned long irqflags;
- int crtc = vblank->crtc;
if (!dev->vblank_disable_allowed)
return;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
if (atomic_read(&vblank->refcount) == 0 && vblank->enabled) {
- DRM_DEBUG("disabling vblank on crtc %d\n", crtc);
- vblank_disable_and_save(dev, crtc);
+ DRM_DEBUG("disabling vblank on crtc %u\n", pipe);
+ vblank_disable_and_save(dev, pipe);
}
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
}
*/
void drm_vblank_cleanup(struct drm_device *dev)
{
- int crtc;
+ unsigned int pipe;
/* Bail if the driver didn't call drm_vblank_init() */
if (dev->num_crtcs == 0)
return;
- for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ for (pipe = 0; pipe < dev->num_crtcs; pipe++) {
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
WARN_ON(vblank->enabled &&
drm_core_check_feature(dev, DRIVER_MODESET));
/**
* drm_vblank_init - initialize vblank support
- * @dev: drm_device
- * @num_crtcs: number of crtcs supported by @dev
+ * @dev: DRM device
+ * @num_crtcs: number of CRTCs supported by @dev
*
* This function initializes vblank support for @num_crtcs display pipelines.
*
* Returns:
* Zero on success or a negative error code on failure.
*/
-int drm_vblank_init(struct drm_device *dev, int num_crtcs)
+int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs)
{
- int i, ret = -ENOMEM;
+ int ret = -ENOMEM;
+ unsigned int i;
spin_lock_init(&dev->vbl_lock);
spin_lock_init(&dev->vblank_time_lock);
struct drm_vblank_crtc *vblank = &dev->vblank[i];
vblank->dev = dev;
- vblank->crtc = i;
+ vblank->pipe = i;
init_waitqueue_head(&vblank->queue);
setup_timer(&vblank->disable_timer, vblank_disable_fn,
(unsigned long)vblank);
void drm_calc_timestamping_constants(struct drm_crtc *crtc,
const struct drm_display_mode *mode)
{
- int linedur_ns = 0, pixeldur_ns = 0, framedur_ns = 0;
+ struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
+ int linedur_ns = 0, framedur_ns = 0;
int dotclock = mode->crtc_clock;
/* Valid dotclock? */
/*
* Convert scanline length in pixels and video
- * dot clock to line duration, frame duration
- * and pixel duration in nanoseconds:
+ * dot clock to line duration and frame duration
+ * in nanoseconds:
*/
- pixeldur_ns = 1000000 / dotclock;
linedur_ns = div_u64((u64) mode->crtc_htotal * 1000000, dotclock);
framedur_ns = div_u64((u64) frame_size * 1000000, dotclock);
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
framedur_ns /= 2;
} else
- DRM_ERROR("crtc %d: Can't calculate constants, dotclock = 0!\n",
+ DRM_ERROR("crtc %u: Can't calculate constants, dotclock = 0!\n",
crtc->base.id);
- crtc->pixeldur_ns = pixeldur_ns;
- crtc->linedur_ns = linedur_ns;
- crtc->framedur_ns = framedur_ns;
+ vblank->linedur_ns = linedur_ns;
+ vblank->framedur_ns = framedur_ns;
- DRM_DEBUG("crtc %d: hwmode: htotal %d, vtotal %d, vdisplay %d\n",
+ DRM_DEBUG("crtc %u: hwmode: htotal %d, vtotal %d, vdisplay %d\n",
crtc->base.id, mode->crtc_htotal,
mode->crtc_vtotal, mode->crtc_vdisplay);
- DRM_DEBUG("crtc %d: clock %d kHz framedur %d linedur %d, pixeldur %d\n",
- crtc->base.id, dotclock, framedur_ns,
- linedur_ns, pixeldur_ns);
+ DRM_DEBUG("crtc %u: clock %d kHz framedur %d linedur %d\n",
+ crtc->base.id, dotclock, framedur_ns, linedur_ns);
}
EXPORT_SYMBOL(drm_calc_timestamping_constants);
/**
* drm_calc_vbltimestamp_from_scanoutpos - precise vblank timestamp helper
* @dev: DRM device
- * @crtc: Which CRTC's vblank timestamp to retrieve
+ * @pipe: index of CRTC whose vblank timestamp to retrieve
* @max_error: Desired maximum allowable error in timestamps (nanosecs)
* On return contains true maximum error of timestamp
* @vblank_time: Pointer to struct timeval which should receive the timestamp
* @flags: Flags to pass to driver:
* 0 = Default,
* DRM_CALLED_FROM_VBLIRQ = If function is called from vbl IRQ handler
- * @refcrtc: CRTC which defines scanout timing
* @mode: mode which defines the scanout timings
*
* Implements calculation of exact vblank timestamps from given drm_display_mode
* DRM_VBLANKTIME_INVBL - Timestamp taken while scanout was in vblank interval.
*
*/
-int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc,
+int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
+ unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags,
- const struct drm_crtc *refcrtc,
const struct drm_display_mode *mode)
{
struct timeval tv_etime;
ktime_t stime, etime;
- int vbl_status;
+ unsigned int vbl_status;
+ int ret = DRM_VBLANKTIME_SCANOUTPOS_METHOD;
int vpos, hpos, i;
- int framedur_ns, linedur_ns, pixeldur_ns, delta_ns, duration_ns;
- bool invbl;
+ int delta_ns, duration_ns;
- if (crtc < 0 || crtc >= dev->num_crtcs) {
- DRM_ERROR("Invalid crtc %d\n", crtc);
+ if (pipe >= dev->num_crtcs) {
+ DRM_ERROR("Invalid crtc %u\n", pipe);
return -EINVAL;
}
return -EIO;
}
- /* Durations of frames, lines, pixels in nanoseconds. */
- framedur_ns = refcrtc->framedur_ns;
- linedur_ns = refcrtc->linedur_ns;
- pixeldur_ns = refcrtc->pixeldur_ns;
-
/* If mode timing undefined, just return as no-op:
* Happens during initial modesetting of a crtc.
*/
- if (framedur_ns == 0) {
- DRM_DEBUG("crtc %d: Noop due to uninitialized mode.\n", crtc);
+ if (mode->crtc_clock == 0) {
+ DRM_DEBUG("crtc %u: Noop due to uninitialized mode.\n", pipe);
return -EAGAIN;
}
* Get vertical and horizontal scanout position vpos, hpos,
* and bounding timestamps stime, etime, pre/post query.
*/
- vbl_status = dev->driver->get_scanout_position(dev, crtc, flags, &vpos,
- &hpos, &stime, &etime);
+ vbl_status = dev->driver->get_scanout_position(dev, pipe, flags,
+ &vpos, &hpos,
+ &stime, &etime,
+ mode);
/* Return as no-op if scanout query unsupported or failed. */
if (!(vbl_status & DRM_SCANOUTPOS_VALID)) {
- DRM_DEBUG("crtc %d : scanoutpos query failed [%d].\n",
- crtc, vbl_status);
+ DRM_DEBUG("crtc %u : scanoutpos query failed [0x%x].\n",
+ pipe, vbl_status);
return -EIO;
}
/* Noisy system timing? */
if (i == DRM_TIMESTAMP_MAXRETRIES) {
- DRM_DEBUG("crtc %d: Noisy timestamp %d us > %d us [%d reps].\n",
- crtc, duration_ns/1000, *max_error/1000, i);
+ DRM_DEBUG("crtc %u: Noisy timestamp %d us > %d us [%d reps].\n",
+ pipe, duration_ns/1000, *max_error/1000, i);
}
/* Return upper bound of timestamp precision error. */
* within vblank area, counting down the number of lines until
* start of scanout.
*/
- invbl = vbl_status & DRM_SCANOUTPOS_IN_VBLANK;
+ if (vbl_status & DRM_SCANOUTPOS_IN_VBLANK)
+ ret |= DRM_VBLANKTIME_IN_VBLANK;
/* Convert scanout position into elapsed time at raw_time query
* since start of scanout at first display scanline. delta_ns
* can be negative if start of scanout hasn't happened yet.
*/
- delta_ns = vpos * linedur_ns + hpos * pixeldur_ns;
+ delta_ns = div_s64(1000000LL * (vpos * mode->crtc_htotal + hpos),
+ mode->crtc_clock);
if (!drm_timestamp_monotonic)
etime = ktime_mono_to_real(etime);
etime = ktime_sub_ns(etime, delta_ns);
*vblank_time = ktime_to_timeval(etime);
- DRM_DEBUG("crtc %d : v %d p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n",
- crtc, (int)vbl_status, hpos, vpos,
+ DRM_DEBUG("crtc %u : v 0x%x p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n",
+ pipe, vbl_status, hpos, vpos,
(long)tv_etime.tv_sec, (long)tv_etime.tv_usec,
(long)vblank_time->tv_sec, (long)vblank_time->tv_usec,
duration_ns/1000, i);
- vbl_status = DRM_VBLANKTIME_SCANOUTPOS_METHOD;
- if (invbl)
- vbl_status |= DRM_VBLANKTIME_IN_VBLANK;
-
- return vbl_status;
+ return ret;
}
EXPORT_SYMBOL(drm_calc_vbltimestamp_from_scanoutpos);
* drm_get_last_vbltimestamp - retrieve raw timestamp for the most recent
* vblank interval
* @dev: DRM device
- * @crtc: which CRTC's vblank timestamp to retrieve
+ * @pipe: index of CRTC whose vblank timestamp to retrieve
* @tvblank: Pointer to target struct timeval which should receive the timestamp
* @flags: Flags to pass to driver:
* 0 = Default,
* True if timestamp is considered to be very precise, false otherwise.
*/
static bool
-drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
+drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe,
struct timeval *tvblank, unsigned flags)
{
int ret;
/* Query driver if possible and precision timestamping enabled. */
if (dev->driver->get_vblank_timestamp && (max_error > 0)) {
- ret = dev->driver->get_vblank_timestamp(dev, crtc, &max_error,
+ ret = dev->driver->get_vblank_timestamp(dev, pipe, &max_error,
tvblank, flags);
if (ret > 0)
return true;
/**
* drm_vblank_count - retrieve "cooked" vblank counter value
* @dev: DRM device
- * @crtc: which counter to retrieve
+ * @pipe: index of CRTC for which to retrieve the counter
*
* Fetches the "cooked" vblank count value that represents the number of
* vblank events since the system was booted, including lost events due to
* Returns:
* The software vblank counter.
*/
-u32 drm_vblank_count(struct drm_device *dev, int crtc)
+u32 drm_vblank_count(struct drm_device *dev, int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return 0;
+
return vblank->count;
}
EXPORT_SYMBOL(drm_vblank_count);
EXPORT_SYMBOL(drm_crtc_vblank_count);
/**
- * drm_vblank_count_and_time - retrieve "cooked" vblank counter value
- * and the system timestamp corresponding to that vblank counter value.
- *
+ * drm_vblank_count_and_time - retrieve "cooked" vblank counter value and the
+ * system timestamp corresponding to that vblank counter value.
* @dev: DRM device
- * @crtc: which counter to retrieve
+ * @pipe: index of CRTC whose counter to retrieve
* @vblanktime: Pointer to struct timeval to receive the vblank timestamp.
*
* Fetches the "cooked" vblank count value that represents the number of
* modesetting activity. Returns corresponding system timestamp of the time
* of the vblank interval that corresponds to the current vblank counter value.
*/
-u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
+u32 drm_vblank_count_and_time(struct drm_device *dev, unsigned int pipe,
struct timeval *vblanktime)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
+ int count = DRM_TIMESTAMP_MAXRETRIES;
u32 cur_vblank;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return 0;
/*
do {
cur_vblank = vblank->count;
smp_rmb();
- *vblanktime = vblanktimestamp(dev, crtc, cur_vblank);
+ *vblanktime = vblanktimestamp(dev, pipe, cur_vblank);
smp_rmb();
- } while (cur_vblank != vblank->count);
+ } while (cur_vblank != vblank->count && --count > 0);
return cur_vblank;
}
/**
* drm_send_vblank_event - helper to send vblank event after pageflip
* @dev: DRM device
- * @crtc: CRTC in question
+ * @pipe: CRTC index
* @e: the event to send
*
* Updates sequence # and timestamp on event, and sends it to userspace.
*
* This is the legacy version of drm_crtc_send_vblank_event().
*/
-void drm_send_vblank_event(struct drm_device *dev, int crtc,
- struct drm_pending_vblank_event *e)
+void drm_send_vblank_event(struct drm_device *dev, unsigned int pipe,
+ struct drm_pending_vblank_event *e)
{
struct timeval now;
unsigned int seq;
- if (crtc >= 0) {
- seq = drm_vblank_count_and_time(dev, crtc, &now);
+ if (dev->num_crtcs > 0) {
+ seq = drm_vblank_count_and_time(dev, pipe, &now);
} else {
seq = 0;
now = get_drm_timestamp();
}
- e->pipe = crtc;
+ e->pipe = pipe;
send_vblank_event(dev, e, seq, &now);
}
EXPORT_SYMBOL(drm_send_vblank_event);
/**
* drm_vblank_enable - enable the vblank interrupt on a CRTC
* @dev: DRM device
- * @crtc: CRTC in question
+ * @pipe: CRTC index
+ *
+ * Returns:
+ * Zero on success or a negative error code on failure.
*/
-static int drm_vblank_enable(struct drm_device *dev, int crtc)
+static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
int ret = 0;
assert_spin_locked(&dev->vbl_lock);
* timestamps. Filtercode in drm_handle_vblank() will
* prevent double-accounting of same vblank interval.
*/
- ret = dev->driver->enable_vblank(dev, crtc);
- DRM_DEBUG("enabling vblank on crtc %d, ret: %d\n", crtc, ret);
+ ret = dev->driver->enable_vblank(dev, pipe);
+ DRM_DEBUG("enabling vblank on crtc %u, ret: %d\n", pipe, ret);
if (ret)
atomic_dec(&vblank->refcount);
else {
vblank->enabled = true;
- drm_update_vblank_count(dev, crtc);
+ drm_update_vblank_count(dev, pipe, 0);
}
}
/**
* drm_vblank_get - get a reference count on vblank events
* @dev: DRM device
- * @crtc: which CRTC to own
+ * @pipe: index of CRTC to own
*
* Acquire a reference count on vblank events to avoid having them disabled
* while in use.
* This is the legacy version of drm_crtc_vblank_get().
*
* Returns:
- * Zero on success, nonzero on failure.
+ * Zero on success or a negative error code on failure.
*/
-int drm_vblank_get(struct drm_device *dev, int crtc)
+int drm_vblank_get(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
unsigned long irqflags;
int ret = 0;
if (!dev->num_crtcs)
return -EINVAL;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return -EINVAL;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
/* Going from 0->1 means we have to enable interrupts again */
if (atomic_add_return(1, &vblank->refcount) == 1) {
- ret = drm_vblank_enable(dev, crtc);
+ ret = drm_vblank_enable(dev, pipe);
} else {
if (!vblank->enabled) {
atomic_dec(&vblank->refcount);
* This is the native kms version of drm_vblank_get().
*
* Returns:
- * Zero on success, nonzero on failure.
+ * Zero on success or a negative error code on failure.
*/
int drm_crtc_vblank_get(struct drm_crtc *crtc)
{
EXPORT_SYMBOL(drm_crtc_vblank_get);
/**
- * drm_vblank_put - give up ownership of vblank events
+ * drm_vblank_put - release ownership of vblank events
* @dev: DRM device
- * @crtc: which counter to give up
+ * @pipe: index of CRTC to release
*
* Release ownership of a given vblank counter, turning off interrupts
* if possible. Disable interrupts after drm_vblank_offdelay milliseconds.
*
* This is the legacy version of drm_crtc_vblank_put().
*/
-void drm_vblank_put(struct drm_device *dev, int crtc)
+void drm_vblank_put(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
- if (WARN_ON(atomic_read(&vblank->refcount) == 0))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(atomic_read(&vblank->refcount) == 0))
return;
/* Last user schedules interrupt disable */
/**
* drm_wait_one_vblank - wait for one vblank
* @dev: DRM device
- * @crtc: crtc index
+ * @pipe: CRTC index
*
- * This waits for one vblank to pass on @crtc, using the irq driver interfaces.
- * It is a failure to call this when the vblank irq for @crtc is disabled, e.g.
+ * This waits for one vblank to pass on @pipe, using the irq driver interfaces.
+ * It is a failure to call this when the vblank irq for @pipe is disabled, e.g.
* due to lack of driver support or because the crtc is off.
*/
-void drm_wait_one_vblank(struct drm_device *dev, int crtc)
+void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe)
{
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
int ret;
u32 last;
- ret = drm_vblank_get(dev, crtc);
- if (WARN(ret, "vblank not available on crtc %i, ret=%i\n", crtc, ret))
+ if (WARN_ON(pipe >= dev->num_crtcs))
+ return;
+
+ ret = drm_vblank_get(dev, pipe);
+ if (WARN(ret, "vblank not available on crtc %i, ret=%i\n", pipe, ret))
return;
- last = drm_vblank_count(dev, crtc);
+ last = drm_vblank_count(dev, pipe);
- ret = wait_event_timeout(dev->vblank[crtc].queue,
- last != drm_vblank_count(dev, crtc),
+ ret = wait_event_timeout(vblank->queue,
+ last != drm_vblank_count(dev, pipe),
msecs_to_jiffies(100));
- WARN(ret == 0, "vblank wait timed out on crtc %i\n", crtc);
+ WARN(ret == 0, "vblank wait timed out on crtc %i\n", pipe);
- drm_vblank_put(dev, crtc);
+ drm_vblank_put(dev, pipe);
}
EXPORT_SYMBOL(drm_wait_one_vblank);
/**
* drm_vblank_off - disable vblank events on a CRTC
* @dev: DRM device
- * @crtc: CRTC in question
+ * @pipe: CRTC index
*
* Drivers can use this function to shut down the vblank interrupt handling when
* disabling a crtc. This function ensures that the latest vblank frame count is
*
* This is the legacy version of drm_crtc_vblank_off().
*/
-void drm_vblank_off(struct drm_device *dev, int crtc)
+void drm_vblank_off(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
struct drm_pending_vblank_event *e, *t;
struct timeval now;
unsigned long irqflags;
unsigned int seq;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return;
spin_lock_irqsave(&dev->event_lock, irqflags);
spin_lock(&dev->vbl_lock);
- vblank_disable_and_save(dev, crtc);
+ vblank_disable_and_save(dev, pipe);
wake_up(&vblank->queue);
/*
spin_unlock(&dev->vbl_lock);
/* Send any queued vblank events, lest the natives grow disquiet */
- seq = drm_vblank_count_and_time(dev, crtc, &now);
+ seq = drm_vblank_count_and_time(dev, pipe, &now);
list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
- if (e->pipe != crtc)
+ if (e->pipe != pipe)
continue;
DRM_DEBUG("Sending premature vblank event on disable: \
wanted %d, current %d\n",
e->event.sequence, seq);
list_del(&e->base.link);
- drm_vblank_put(dev, e->pipe);
+ drm_vblank_put(dev, pipe);
send_vblank_event(dev, e, seq, &now);
}
spin_unlock_irqrestore(&dev->event_lock, irqflags);
/**
* drm_crtc_vblank_reset - reset vblank state to off on a CRTC
- * @crtc: CRTC in question
+ * @drm_crtc: CRTC in question
*
* Drivers can use this function to reset the vblank state to off at load time.
* Drivers should use this together with the drm_crtc_vblank_off() and
{
struct drm_device *dev = drm_crtc->dev;
unsigned long irqflags;
- int crtc = drm_crtc_index(drm_crtc);
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ unsigned int pipe = drm_crtc_index(drm_crtc);
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
spin_lock_irqsave(&dev->vbl_lock, irqflags);
/*
/**
* drm_vblank_on - enable vblank events on a CRTC
* @dev: DRM device
- * @crtc: CRTC in question
+ * @pipe: CRTC index
*
* This functions restores the vblank interrupt state captured with
* drm_vblank_off() again. Note that calls to drm_vblank_on() and
*
* This is the legacy version of drm_crtc_vblank_on().
*/
-void drm_vblank_on(struct drm_device *dev, int crtc)
+void drm_vblank_on(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
unsigned long irqflags;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
* vblank counter value before and after a modeset
*/
vblank->last =
- (dev->driver->get_vblank_counter(dev, crtc) - 1) &
+ (dev->driver->get_vblank_counter(dev, pipe) - 1) &
dev->max_vblank_count;
/*
* re-enable interrupts if there are users left, or the
*/
if (atomic_read(&vblank->refcount) != 0 ||
(!dev->vblank_disable_immediate && drm_vblank_offdelay == 0))
- WARN_ON(drm_vblank_enable(dev, crtc));
+ WARN_ON(drm_vblank_enable(dev, pipe));
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
}
EXPORT_SYMBOL(drm_vblank_on);
/**
* drm_vblank_pre_modeset - account for vblanks across mode sets
* @dev: DRM device
- * @crtc: CRTC in question
+ * @pipe: CRTC index
*
* Account for vblank events across mode setting events, which will likely
* reset the hardware frame counter.
* Drivers must call drm_vblank_post_modeset() when re-enabling the same crtc
* again.
*/
-void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
+void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
/* vblank is not initialized (IRQ not installed ?), or has been freed */
if (!dev->num_crtcs)
return;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return;
/*
*/
if (!vblank->inmodeset) {
vblank->inmodeset = 0x1;
- if (drm_vblank_get(dev, crtc) == 0)
+ if (drm_vblank_get(dev, pipe) == 0)
vblank->inmodeset |= 0x2;
}
}
/**
* drm_vblank_post_modeset - undo drm_vblank_pre_modeset changes
* @dev: DRM device
- * @crtc: CRTC in question
+ * @pipe: CRTC index
*
* This function again drops the temporary vblank reference acquired in
* drm_vblank_pre_modeset.
*/
-void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
+void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
unsigned long irqflags;
/* vblank is not initialized (IRQ not installed ?), or has been freed */
if (!dev->num_crtcs)
return;
+ if (WARN_ON(pipe >= dev->num_crtcs))
+ return;
+
if (vblank->inmodeset) {
spin_lock_irqsave(&dev->vbl_lock, irqflags);
dev->vblank_disable_allowed = true;
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
if (vblank->inmodeset & 0x2)
- drm_vblank_put(dev, crtc);
+ drm_vblank_put(dev, pipe);
vblank->inmodeset = 0;
}
struct drm_file *file_priv)
{
struct drm_modeset_ctl *modeset = data;
- unsigned int crtc;
+ unsigned int pipe;
/* If drm_vblank_init() hasn't been called yet, just no-op */
if (!dev->num_crtcs)
if (drm_core_check_feature(dev, DRIVER_MODESET))
return 0;
- crtc = modeset->crtc;
- if (crtc >= dev->num_crtcs)
+ pipe = modeset->crtc;
+ if (pipe >= dev->num_crtcs)
return -EINVAL;
switch (modeset->cmd) {
case _DRM_PRE_MODESET:
- drm_vblank_pre_modeset(dev, crtc);
+ drm_vblank_pre_modeset(dev, pipe);
break;
case _DRM_POST_MODESET:
- drm_vblank_post_modeset(dev, crtc);
+ drm_vblank_post_modeset(dev, pipe);
break;
default:
return -EINVAL;
return 0;
}
-static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
+static int drm_queue_vblank_event(struct drm_device *dev, unsigned int pipe,
union drm_wait_vblank *vblwait,
struct drm_file *file_priv)
{
vblwait->reply.sequence = vblwait->request.sequence;
}
- DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
+ DRM_DEBUG("event on vblank count %d, current %d, crtc %u\n",
vblwait->request.sequence, seq, pipe);
trace_drm_vblank_event_queued(current->pid, pipe,
struct drm_vblank_crtc *vblank;
union drm_wait_vblank *vblwait = data;
int ret;
- unsigned int flags, seq, crtc, high_crtc;
+ unsigned int flags, seq, pipe, high_pipe;
if (!dev->irq_enabled)
return -EINVAL;
}
flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
- high_crtc = (vblwait->request.type & _DRM_VBLANK_HIGH_CRTC_MASK);
- if (high_crtc)
- crtc = high_crtc >> _DRM_VBLANK_HIGH_CRTC_SHIFT;
+ high_pipe = (vblwait->request.type & _DRM_VBLANK_HIGH_CRTC_MASK);
+ if (high_pipe)
+ pipe = high_pipe >> _DRM_VBLANK_HIGH_CRTC_SHIFT;
else
- crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
- if (crtc >= dev->num_crtcs)
+ pipe = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
+ if (pipe >= dev->num_crtcs)
return -EINVAL;
- vblank = &dev->vblank[crtc];
+ vblank = &dev->vblank[pipe];
- ret = drm_vblank_get(dev, crtc);
+ ret = drm_vblank_get(dev, pipe);
if (ret) {
DRM_DEBUG("failed to acquire vblank counter, %d\n", ret);
return ret;
}
- seq = drm_vblank_count(dev, crtc);
+ seq = drm_vblank_count(dev, pipe);
switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
case _DRM_VBLANK_RELATIVE:
/* must hold on to the vblank ref until the event fires
* drm_vblank_put will be called asynchronously
*/
- return drm_queue_vblank_event(dev, crtc, vblwait, file_priv);
+ return drm_queue_vblank_event(dev, pipe, vblwait, file_priv);
}
if ((flags & _DRM_VBLANK_NEXTONMISS) &&
vblwait->request.sequence = seq + 1;
}
- DRM_DEBUG("waiting on vblank count %d, crtc %d\n",
- vblwait->request.sequence, crtc);
+ DRM_DEBUG("waiting on vblank count %d, crtc %u\n",
+ vblwait->request.sequence, pipe);
vblank->last_wait = vblwait->request.sequence;
DRM_WAIT_ON(ret, vblank->queue, 3 * HZ,
- (((drm_vblank_count(dev, crtc) -
+ (((drm_vblank_count(dev, pipe) -
vblwait->request.sequence) <= (1 << 23)) ||
!vblank->enabled ||
!dev->irq_enabled));
if (ret != -EINTR) {
struct timeval now;
- vblwait->reply.sequence = drm_vblank_count_and_time(dev, crtc, &now);
+ vblwait->reply.sequence = drm_vblank_count_and_time(dev, pipe, &now);
vblwait->reply.tval_sec = now.tv_sec;
vblwait->reply.tval_usec = now.tv_usec;
}
done:
- drm_vblank_put(dev, crtc);
+ drm_vblank_put(dev, pipe);
return ret;
}
-static void drm_handle_vblank_events(struct drm_device *dev, int crtc)
+static void drm_handle_vblank_events(struct drm_device *dev, unsigned int pipe)
{
struct drm_pending_vblank_event *e, *t;
struct timeval now;
assert_spin_locked(&dev->event_lock);
- seq = drm_vblank_count_and_time(dev, crtc, &now);
+ seq = drm_vblank_count_and_time(dev, pipe, &now);
list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
- if (e->pipe != crtc)
+ if (e->pipe != pipe)
continue;
if ((seq - e->event.sequence) > (1<<23))
continue;
e->event.sequence, seq);
list_del(&e->base.link);
- drm_vblank_put(dev, e->pipe);
+ drm_vblank_put(dev, pipe);
send_vblank_event(dev, e, seq, &now);
}
- trace_drm_vblank_event(crtc, seq);
+ trace_drm_vblank_event(pipe, seq);
}
/**
* drm_handle_vblank - handle a vblank event
* @dev: DRM device
- * @crtc: where this event occurred
+ * @pipe: index of 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.
*
* This is the legacy version of drm_crtc_handle_vblank().
*/
-bool drm_handle_vblank(struct drm_device *dev, int crtc)
+bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe)
{
- struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
+ struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
u32 vblcount;
s64 diff_ns;
struct timeval tvblank;
if (WARN_ON_ONCE(!dev->num_crtcs))
return false;
- if (WARN_ON(crtc >= dev->num_crtcs))
+ if (WARN_ON(pipe >= dev->num_crtcs))
return false;
spin_lock_irqsave(&dev->event_lock, irqflags);
/* Get current timestamp and count. */
vblcount = vblank->count;
- drm_get_last_vbltimestamp(dev, crtc, &tvblank, DRM_CALLED_FROM_VBLIRQ);
+ drm_get_last_vbltimestamp(dev, pipe, &tvblank, DRM_CALLED_FROM_VBLIRQ);
/* Compute time difference to timestamp of last vblank */
diff_ns = timeval_to_ns(&tvblank) -
- timeval_to_ns(&vblanktimestamp(dev, crtc, vblcount));
+ timeval_to_ns(&vblanktimestamp(dev, pipe, vblcount));
/* Update vblank timestamp and count if at least
* DRM_REDUNDANT_VBLIRQ_THRESH_NS nanoseconds
* ignore those for accounting.
*/
if (abs64(diff_ns) > DRM_REDUNDANT_VBLIRQ_THRESH_NS)
- store_vblank(dev, crtc, 1, &tvblank);
+ store_vblank(dev, pipe, 1, &tvblank);
else
- DRM_DEBUG("crtc %d: Redundant vblirq ignored. diff_ns = %d\n",
- crtc, (int) diff_ns);
+ DRM_DEBUG("crtc %u: Redundant vblirq ignored. diff_ns = %d\n",
+ pipe, (int) diff_ns);
spin_unlock(&dev->vblank_time_lock);
wake_up(&vblank->queue);
- drm_handle_vblank_events(dev, crtc);
+ drm_handle_vblank_events(dev, pipe);
spin_unlock_irqrestore(&dev->event_lock, irqflags);
projects / firefly-linux-kernel-4.4.55.git / blobdiff