diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-09-14 21:43:49 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-09-24 20:14:23 +0200 |
| commit | ad1716ecca9d9099199cfc9278672c17d1484c75 (patch) | |
| tree | 5ade3e96dcc54ee9d2fae0c42f6f7fdca620afa5 /drivers/gpu/drm/drm_irq.c | |
| parent | drm: Limit the number of .get_vblank_counter() retries (diff) | |
| download | linux-ad1716ecca9d9099199cfc9278672c17d1484c75.tar.xz linux-ad1716ecca9d9099199cfc9278672c17d1484c75.zip | |
drm: Clean up drm_calc_vbltimestamp_from_scanoutpos() vbl_status
Avoid confusion and don't use 'vbl_status' as both the
.get_scanout_position() return value and the return value from
drm_calc_vbltimestamp_from_scanoutpos().
While at it make 'vbl_status' unsigned and print it as hex in the
debug prints since it's a bitmask.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 93fe582b5ca3..aad4f1d63a2e 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -695,10 +695,10 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, { 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 delta_ns, duration_ns; - bool invbl; if (pipe >= dev->num_crtcs) { DRM_ERROR("Invalid crtc %u\n", pipe); @@ -738,7 +738,7 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, /* Return as no-op if scanout query unsupported or failed. */ if (!(vbl_status & DRM_SCANOUTPOS_VALID)) { - DRM_DEBUG("crtc %u : scanoutpos query failed [%d].\n", + DRM_DEBUG("crtc %u : scanoutpos query failed [0x%x].\n", pipe, vbl_status); return -EIO; } @@ -765,7 +765,8 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, * 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 @@ -788,17 +789,13 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, etime = ktime_sub_ns(etime, delta_ns); *vblank_time = ktime_to_timeval(etime); - DRM_DEBUG("crtc %u : v %d p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n", - pipe, (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); |