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drm/vblank: Switch to bool in_vblank_irq in get_vblank_timestamp

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It's overkill to have a flag parameter which is essentially used just
as a boolean. This takes care of core + adjusting drivers.

Adjusting the scanout position callback is a bit harder, since radeon
also supplies it's own driver-private flags in there.

v2: Fixup misplaced hunks (Neil).

v3: kbuild says v1 was better ...

Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Cc: Eric Anholt <eric@anholt.net>
Cc: Rob Clark <robdclark@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170509140329.24114-2-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2017-05-09 16:03:26 +02:00
parent d673c02c4b
commit 3fcdcb2709
13 changed files with 50 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@ -1913,7 +1913,7 @@ void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe);
bool amdgpu_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags);
bool in_vblank_irq);
long amdgpu_kms_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);

6
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View File

@ -941,7 +941,7 @@ void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe)
* @crtc: crtc to get the timestamp for
* @max_error: max error
* @vblank_time: time value
* @flags: flags passed to the driver
* @in_vblank_irq: called from drm_handle_vblank()
*
* Gets the timestamp on the requested crtc based on the
* scanout position. (all asics).
@ -950,7 +950,7 @@ void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe)
bool amdgpu_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags)
bool in_vblank_irq)
{
struct drm_crtc *crtc;
struct amdgpu_device *adev = dev->dev_private;
@ -971,7 +971,7 @@ bool amdgpu_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
/* Helper routine in DRM core does all the work: */
return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error,
vblank_time, flags,
vblank_time, in_vblank_irq,
&crtc->hwmode);
}

41
drivers/gpu/drm/drm_irq.c
View File

@ -54,7 +54,7 @@
static bool
drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe,
struct timeval *tvblank, unsigned flags);
struct timeval *tvblank, bool in_vblank_irq);
static unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
@ -138,7 +138,7 @@ static void drm_reset_vblank_timestamp(struct drm_device *dev, unsigned int pipe
*/
do {
cur_vblank = __get_vblank_counter(dev, pipe);
rc = drm_get_last_vbltimestamp(dev, pipe, &t_vblank, 0);
rc = drm_get_last_vbltimestamp(dev, pipe, &t_vblank, false);
} while (cur_vblank != __get_vblank_counter(dev, pipe) && --count > 0);
/*
@ -171,7 +171,7 @@ static void drm_reset_vblank_timestamp(struct drm_device *dev, unsigned int pipe
* device vblank fields.
*/
static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
unsigned long flags)
bool in_vblank_irq)
{
struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
u32 cur_vblank, diff;
@ -194,7 +194,7 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
*/
do {
cur_vblank = __get_vblank_counter(dev, pipe);
rc = drm_get_last_vbltimestamp(dev, pipe, &t_vblank, flags);
rc = drm_get_last_vbltimestamp(dev, pipe, &t_vblank, in_vblank_irq);
} while (cur_vblank != __get_vblank_counter(dev, pipe) && --count > 0);
if (dev->max_vblank_count != 0) {
@ -214,13 +214,13 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
*/
diff = DIV_ROUND_CLOSEST_ULL(diff_ns, framedur_ns);
if (diff == 0 && flags & DRM_CALLED_FROM_VBLIRQ)
if (diff == 0 && in_vblank_irq)
DRM_DEBUG_VBL("crtc %u: Redundant vblirq ignored."
" diff_ns = %lld, framedur_ns = %d)\n",
pipe, (long long) diff_ns, framedur_ns);
} else {
/* some kind of default for drivers w/o accurate vbl timestamping */
diff = (flags & DRM_CALLED_FROM_VBLIRQ) != 0;
diff = in_vblank_irq ? 1 : 0;
}
/*
@ -253,7 +253,7 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
* Otherwise reinitialize delayed at next vblank interrupt and assign 0
* for now, to mark the vblanktimestamp as invalid.
*/
if (!rc && (flags & DRM_CALLED_FROM_VBLIRQ) == 0)
if (!rc && in_vblank_irq)
t_vblank = (struct timeval) {0, 0};
store_vblank(dev, pipe, diff, &t_vblank, cur_vblank);
@ -291,7 +291,7 @@ u32 drm_accurate_vblank_count(struct drm_crtc *crtc)
spin_lock_irqsave(&dev->vblank_time_lock, flags);
drm_update_vblank_count(dev, pipe, 0);
drm_update_vblank_count(dev, pipe, false);
vblank = drm_vblank_count(dev, pipe);
spin_unlock_irqrestore(&dev->vblank_time_lock, flags);
@ -349,7 +349,7 @@ static void vblank_disable_and_save(struct drm_device *dev, unsigned int pipe)
* this time. This makes the count account for the entire time
* between drm_crtc_vblank_on() and drm_crtc_vblank_off().
*/
drm_update_vblank_count(dev, pipe, 0);
drm_update_vblank_count(dev, pipe, false);
spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
}
@ -700,9 +700,10 @@ EXPORT_SYMBOL(drm_calc_timestamping_constants);
* @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
* @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.
* @mode: mode which defines the scanout timings
*
* Implements calculation of exact vblank timestamps from given drm_display_mode
@ -732,7 +733,7 @@ bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags,
bool in_vblank_irq,
const struct drm_display_mode *mode)
{
struct timeval tv_etime;
@ -740,6 +741,7 @@ bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
unsigned int vbl_status;
int vpos, hpos, i;
int delta_ns, duration_ns;
unsigned flags = in_vblank_irq ? DRM_CALLED_FROM_VBLIRQ : 0;
if (pipe >= dev->num_crtcs) {
DRM_ERROR("Invalid crtc %u\n", pipe);
@ -843,9 +845,10 @@ static struct timeval get_drm_timestamp(void)
* @dev: DRM device
* @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,
* DRM_CALLED_FROM_VBLIRQ = If function is called from vbl IRQ handler
* @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.
*
* Fetches the system timestamp corresponding to the time of the most recent
* vblank interval on specified CRTC. May call into kms-driver to
@ -859,7 +862,7 @@ static struct timeval get_drm_timestamp(void)
*/
static bool
drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe,
struct timeval *tvblank, unsigned flags)
struct timeval *tvblank, bool in_vblank_irq)
{
bool ret = false;
@ -869,7 +872,7 @@ drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe,
/* Query driver if possible and precision timestamping enabled. */
if (dev->driver->get_vblank_timestamp && (max_error > 0))
ret = dev->driver->get_vblank_timestamp(dev, pipe, &max_error,
tvblank, flags);
tvblank, in_vblank_irq);
/* GPU high precision timestamp query unsupported or failed.
* Return current monotonic/gettimeofday timestamp as best estimate.
@ -1747,7 +1750,7 @@ bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe)
return false;
}
drm_update_vblank_count(dev, pipe, DRM_CALLED_FROM_VBLIRQ);
drm_update_vblank_count(dev, pipe, true);
spin_unlock(&dev->vblank_time_lock);

4
drivers/gpu/drm/i915/i915_irq.c
View File

@ -967,7 +967,7 @@ int intel_get_crtc_scanline(struct intel_crtc *crtc)
static bool i915_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags)
bool in_vblank_irq)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *crtc;
@ -991,7 +991,7 @@ static bool i915_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
/* Helper routine in DRM core does all the work: */
return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error,
vblank_time, flags,
vblank_time, in_vblank_irq,
&crtc->base.hwmode);
}

4
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
View File

@ -595,7 +595,7 @@ static int mdp5_get_scanoutpos(struct drm_device *dev, unsigned int pipe,
static bool mdp5_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags)
bool in_vblank_irq)
{
struct msm_drm_private *priv = dev->dev_private;
struct drm_crtc *crtc;
@ -612,7 +612,7 @@ static bool mdp5_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
}
return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error,
vblank_time, flags,
vblank_time, in_vblank_irq,
&crtc->mode);
}

5
drivers/gpu/drm/nouveau/nouveau_display.c
View File

@ -158,7 +158,7 @@ nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
bool
nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
int *max_error, struct timeval *time, unsigned flags)
int *max_error, struct timeval *time, bool in_vblank_irq)
{
struct drm_crtc *crtc;
@ -170,7 +170,8 @@ nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
else
mode = &crtc->hwmode;
return drm_calc_vbltimestamp_from_scanoutpos(dev,
pipe, max_error, time, flags, mode);
pipe, max_error, time, in_vblank_irq,
mode);
}
}

2
drivers/gpu/drm/nouveau/nouveau_display.h
View File

@ -72,7 +72,7 @@ int nouveau_display_scanoutpos(struct drm_device *, unsigned int,
unsigned int, int *, int *, ktime_t *,
ktime_t *, const struct drm_display_mode *);
bool nouveau_display_vblstamp(struct drm_device *, unsigned int, int *,
struct timeval *, unsigned);
struct timeval *, bool);
int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,

2
drivers/gpu/drm/radeon/radeon_drv.c
View File

@ -118,7 +118,7 @@ void radeon_disable_vblank_kms(struct drm_device *dev, unsigned int pipe);
bool radeon_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags);
bool in_vblank_irq);
void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
void radeon_driver_irq_uninstall_kms(struct drm_device *dev);

4
drivers/gpu/drm/radeon/radeon_kms.c
View File

@ -874,7 +874,7 @@ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
bool radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
int *max_error,
struct timeval *vblank_time,
unsigned flags)
bool in_vblank_irq)
{
struct drm_crtc *drmcrtc;
struct radeon_device *rdev = dev->dev_private;
@ -891,7 +891,7 @@ bool radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
/* Helper routine in DRM core does all the work: */
return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,
vblank_time, flags,
vblank_time, in_vblank_irq,
&drmcrtc->hwmode);
}

4
drivers/gpu/drm/vc4/vc4_crtc.c
View File

@ -272,14 +272,14 @@ int vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id,
bool vc4_crtc_get_vblank_timestamp(struct drm_device *dev, unsigned int crtc_id,
int *max_error, struct timeval *vblank_time,
unsigned flags)
bool in_vblank_irq)
{
struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id);
struct drm_crtc_state *state = crtc->state;
/* Helper routine in DRM core does all the work: */
return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc_id, max_error,
vblank_time, flags,
vblank_time, in_vblank_irq,
&state->adjusted_mode);
}

2
drivers/gpu/drm/vc4/vc4_drv.h
View File

@ -495,7 +495,7 @@ int vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id,
const struct drm_display_mode *mode);
bool vc4_crtc_get_vblank_timestamp(struct drm_device *dev, unsigned int crtc_id,
int *max_error, struct timeval *vblank_time,
unsigned flags);
bool in_vblank_irq);
/* vc4_debugfs.c */
int vc4_debugfs_init(struct drm_minor *minor);

17
include/drm/drm_drv.h
View File

@ -241,8 +241,10 @@ struct drm_driver {
* DRM device.
* pipe:
* Id of the crtc to query.
* flags:
* Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0).
* 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:
@ -308,11 +310,10 @@ struct drm_driver {
* Returns true upper bound on error for timestamp.
* vblank_time:
* Target location for returned vblank timestamp.
* flags:
* 0 = Defaults, no special treatment needed.
* DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
* irq handler. Some drivers need to apply some workarounds
* for gpu-specific vblank irq quirks if flag is set.
* 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:
*
@ -322,7 +323,7 @@ struct drm_driver {
bool (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags);
bool in_vblank_irq);
/* these have to be filled in */

2
include/drm/drm_irq.h
View File

@ -156,7 +156,7 @@ u32 drm_accurate_vblank_count(struct drm_crtc *crtc);
bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
unsigned int pipe, int *max_error,
struct timeval *vblank_time,
unsigned flags,
bool in_vblank_irq,
const struct drm_display_mode *mode);
void drm_calc_timestamping_constants(struct drm_crtc *crtc,
const struct drm_display_mode *mode);