All non-legacy users of VBLANK functions in struct drm_driver have been converted to use the respective interfaces in struct drm_crtc_funcs. The remaining users of VBLANK callbacks in struct drm_driver are legacy drivers with userspace modesetting.
All users of struct drm_driver.get_scanout_position() have been converted to the respective CRTC helper function. Remove the callback from struct drm_driver.
There are no users left of get_vblank_timestamp(), so the callback is being removed. The other VBLANK callbacks are being moved to the legacy section at the end of struct drm_driver.
Also removed is drm_calc_vbltimestamp_from_scanoutpos(). Callers of this function have been converted to use the CRTC instead.
v2: * merge with removal of struct drm_driver.get_scanout_position() * remove drm_calc_vbltimestamp_from_scanoutpos()
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Tested-by: Yannick Fertré yannick.fertre@st.com --- drivers/gpu/drm/drm_vblank.c | 86 +++----------------- include/drm/drm_drv.h | 153 +---------------------------------- include/drm/drm_vblank.h | 4 - 3 files changed, 14 insertions(+), 229 deletions(-)
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index fc297043e3ba..34428ce3c676 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -138,10 +138,9 @@ static u32 __get_vblank_counter(struct drm_device *dev, unsigned int pipe)
if (crtc->funcs->get_vblank_counter) return crtc->funcs->get_vblank_counter(crtc); - } - - if (dev->driver->get_vblank_counter) + } else if (dev->driver->get_vblank_counter) { return dev->driver->get_vblank_counter(dev, pipe); + }
return drm_vblank_no_hw_counter(dev, pipe); } @@ -334,8 +333,7 @@ u64 drm_crtc_accurate_vblank_count(struct drm_crtc *crtc) unsigned long flags;
WARN_ONCE(drm_debug_enabled(DRM_UT_VBL) && - !crtc->funcs->get_vblank_timestamp && - !dev->driver->get_vblank_timestamp, + !crtc->funcs->get_vblank_timestamp, "This function requires support for accurate vblank timestamps.");
spin_lock_irqsave(&dev->vblank_time_lock, flags); @@ -357,13 +355,11 @@ static void __disable_vblank(struct drm_device *dev, unsigned int pipe) if (WARN_ON(!crtc)) return;
- if (crtc->funcs->disable_vblank) { + if (crtc->funcs->disable_vblank) crtc->funcs->disable_vblank(crtc); - return; - } + } else { + dev->driver->disable_vblank(dev, pipe); } - - dev->driver->disable_vblank(dev, pipe); }
/* @@ -565,62 +561,6 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_calc_timestamping_constants);
-/** - * drm_calc_vbltimestamp_from_scanoutpos - precise vblank timestamp helper - * @dev: DRM device - * @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 time which should receive the timestamp - * @in_vblank_irq: - * True when called from drm_crtc_handle_vblank(). Some drivers - * need to apply some workarounds for gpu-specific vblank irq quirks - * if flag is set. - * - * Implements calculation of exact vblank timestamps from given drm_display_mode - * timings and current video scanout position of a CRTC. This can be directly - * used as the &drm_crtc_funcs.get_vblank_timestamp implementation of a kms - * driver if &drm_crtc_helper_funcs.get_scanout_position or - * &drm_driver.get_scanout_position is implemented. - * - * The current implementation only handles standard video modes. For double scan - * and interlaced modes the driver is supposed to adjust the hardware mode - * (taken from &drm_crtc_state.adjusted mode for atomic modeset drivers) to - * match the scanout position reported. - * - * Note that atomic drivers must call drm_calc_timestamping_constants() before - * enabling a CRTC. The atomic helpers already take care of that in - * drm_atomic_helper_update_legacy_modeset_state(). - * - * Returns: - * - * Returns true on success, and false on failure, i.e. when no accurate - * timestamp could be acquired. - */ -bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, - unsigned int pipe, - int *max_error, - ktime_t *vblank_time, - bool in_vblank_irq) -{ - struct drm_crtc *crtc; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return false; - - crtc = drm_crtc_from_index(dev, pipe); - if (!crtc) - return false; - - return drm_crtc_vblank_helper_get_vblank_timestamp_internal(crtc, - max_error, - vblank_time, - in_vblank_irq, - crtc->helper_private->get_scanout_position, - dev->driver->get_scanout_position); -} -EXPORT_SYMBOL(drm_calc_vbltimestamp_from_scanoutpos); - /** * drm_crtc_vblank_helper_get_vblank_timestamp_internal - precise vblank * timestamp helper @@ -856,9 +796,6 @@ drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe,
ret = crtc->funcs->get_vblank_timestamp(crtc, &max_error, tvblank, in_vblank_irq); - } else if (dev->driver->get_vblank_timestamp && max_error > 0) { - ret = dev->driver->get_vblank_timestamp(dev, pipe, &max_error, - tvblank, in_vblank_irq); }
/* GPU high precision timestamp query unsupported or failed. @@ -1081,9 +1018,11 @@ static int __enable_vblank(struct drm_device *dev, unsigned int pipe)
if (crtc->funcs->enable_vblank) return crtc->funcs->enable_vblank(crtc); + } else if (dev->driver->enable_vblank) { + return dev->driver->enable_vblank(dev, pipe); }
- return dev->driver->enable_vblank(dev, pipe); + return -EINVAL; }
static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe) @@ -1846,7 +1785,6 @@ static void drm_handle_vblank_events(struct drm_device *dev, unsigned int pipe) struct drm_pending_vblank_event *e, *t; ktime_t now; u64 seq; - bool high_prec;
assert_spin_locked(&dev->event_lock);
@@ -1866,10 +1804,8 @@ static void drm_handle_vblank_events(struct drm_device *dev, unsigned int pipe) send_vblank_event(dev, e, seq, now); }
- high_prec = crtc && crtc->funcs->get_vblank_timestamp || - dev->driver->get_vblank_timestamp; - - trace_drm_vblank_event(pipe, seq, now, high_prec); + trace_drm_vblank_event(pipe, seq, now, + crtc && crtc->funcs->get_vblank_timestamp); }
/** diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index d0049e5786fc..e290b3aca6eb 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -268,156 +268,6 @@ struct drm_driver { */ void (*release) (struct drm_device *);
- /** - * @get_vblank_counter: - * - * Driver callback for fetching a raw hardware vblank counter for the - * CRTC specified with the pipe argument. If a device doesn't have a - * hardware counter, the driver can simply leave the hook as NULL. - * The DRM core will account for missed vblank events while interrupts - * where disabled based on system timestamps. - * - * Wraparound handling and loss of events due to modesetting is dealt - * with in the DRM core code, as long as drivers call - * drm_crtc_vblank_off() and drm_crtc_vblank_on() when disabling or - * enabling a CRTC. - * - * This is deprecated and should not be used by new drivers. - * Use &drm_crtc_funcs.get_vblank_counter instead. - * - * Returns: - * - * Raw vblank counter value. - */ - u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); - - /** - * @enable_vblank: - * - * Enable vblank interrupts for the CRTC specified with the pipe - * argument. - * - * This is deprecated and should not be used by new drivers. - * Use &drm_crtc_funcs.enable_vblank instead. - * - * Returns: - * - * Zero on success, appropriate errno if the given @crtc's vblank - * interrupt cannot be enabled. - */ - int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); - - /** - * @disable_vblank: - * - * Disable vblank interrupts for the CRTC specified with the pipe - * argument. - * - * This is deprecated and should not be used by new drivers. - * Use &drm_crtc_funcs.disable_vblank instead. - */ - void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); - - /** - * @get_scanout_position: - * - * Called by vblank timestamping code. - * - * Returns the current display scanout position from a crtc, and an - * optional accurate ktime_get() timestamp of when position was - * measured. Note that this is a helper callback which is only used if a - * driver uses drm_calc_vbltimestamp_from_scanoutpos() for the - * @get_vblank_timestamp callback. - * - * Parameters: - * - * dev: - * DRM device. - * pipe: - * Id of the crtc to query. - * in_vblank_irq: - * True when called from drm_crtc_handle_vblank(). Some drivers - * need to apply some workarounds for gpu-specific vblank irq quirks - * if flag is set. - * vpos: - * Target location for current vertical scanout position. - * hpos: - * Target location for current horizontal scanout position. - * stime: - * Target location for timestamp taken immediately before - * scanout position query. Can be NULL to skip timestamp. - * etime: - * Target location for timestamp taken immediately after - * scanout position query. Can be NULL to skip timestamp. - * mode: - * Current display timings. - * - * Returns vpos as a positive number while in active scanout area. - * Returns vpos as a negative number inside vblank, counting the number - * of scanlines to go until end of vblank, e.g., -1 means "one scanline - * until start of active scanout / end of vblank." - * - * Returns: - * - * True on success, false if a reliable scanout position counter could - * not be read out. - * - * This is deprecated and should not be used by new drivers. - * Use &drm_crtc_helper_funcs.get_scanout_position instead. - */ - bool (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, - bool in_vblank_irq, int *vpos, int *hpos, - ktime_t *stime, ktime_t *etime, - const struct drm_display_mode *mode); - - /** - * @get_vblank_timestamp: - * - * Called by drm_get_last_vbltimestamp(). Should return a precise - * timestamp when the most recent VBLANK interval ended or will end. - * - * Specifically, the timestamp in @vblank_time should correspond as - * closely as possible to the time when the first video scanline of - * the video frame after the end of VBLANK will start scanning out, - * the time immediately after end of the VBLANK interval. If the - * @crtc is currently inside VBLANK, this will be a time in the future. - * If the @crtc is currently scanning out a frame, this will be the - * past start time of the current scanout. This is meant to adhere - * to the OpenML OML_sync_control extension specification. - * - * Paramters: - * - * dev: - * dev DRM device handle. - * pipe: - * crtc for which timestamp should be returned. - * max_error: - * Maximum allowable timestamp error in nanoseconds. - * Implementation should strive to provide timestamp - * with an error of at most max_error nanoseconds. - * Returns true upper bound on error for timestamp. - * vblank_time: - * Target location for returned vblank timestamp. - * in_vblank_irq: - * True when called from drm_crtc_handle_vblank(). Some drivers - * need to apply some workarounds for gpu-specific vblank irq quirks - * if flag is set. - * - * Returns: - * - * True on success, false on failure, which means the core should - * fallback to a simple timestamp taken in drm_crtc_handle_vblank(). - * - * FIXME: - * - * We should move this hook to &struct drm_crtc_funcs like all the other - * vblank hooks. - */ - bool (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, - int *max_error, - ktime_t *vblank_time, - bool in_vblank_irq); - /** * @irq_handler: * @@ -772,6 +622,9 @@ struct drm_driver { int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); int (*dma_quiescent) (struct drm_device *); int (*context_dtor) (struct drm_device *dev, int context); + u32 (*get_vblank_counter)(struct drm_device *dev, unsigned int pipe); + int (*enable_vblank)(struct drm_device *dev, unsigned int pipe); + void (*disable_vblank)(struct drm_device *dev, unsigned int pipe); int dev_priv_size; };
diff --git a/include/drm/drm_vblank.h b/include/drm/drm_vblank.h index 4bfffe990828..a6ca8be93dd8 100644 --- a/include/drm/drm_vblank.h +++ b/include/drm/drm_vblank.h @@ -229,10 +229,6 @@ u64 drm_crtc_accurate_vblank_count(struct drm_crtc *crtc); void drm_vblank_restore(struct drm_device *dev, unsigned int pipe); void drm_crtc_vblank_restore(struct drm_crtc *crtc);
-bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, - unsigned int pipe, int *max_error, - ktime_t *vblank_time, - bool in_vblank_irq); void drm_calc_timestamping_constants(struct drm_crtc *crtc, const struct drm_display_mode *mode); wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc);