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| author | Inki Dae <inki.dae@samsung.com> | 2012-09-19 11:02:43 +0900 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2012-10-04 10:06:01 +0900 |
| commit | 291257cf4cb0da1e32b672b88e73d22d845c8f93 (patch) | |
| tree | 8da8e2b51c144842dc35d0ebe76f05a8d2769cec /drivers/gpu | |
| parent | 32aeab17457c13e6a448ba0f6f3c03d6705e5592 (diff) | |
| download | linux-291257cf4cb0da1e32b672b88e73d22d845c8f93.tar.bz2 | |
drm/exynos: support drm_wait_vblank feature for VIDI
this patch adds drm_wait_vblank support to Virtual Display module
so user can use DRM_IOCT_WAIT_VBLANK ioctl with this patch.
for this, you should set _DRM_VBLANK_EXYNOS_VIDI flags to
vblwait->request.type
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_vidi.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index c95f7dedb8a0..54b44159caf1 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -56,6 +56,7 @@ struct vidi_context { unsigned int connected; bool vblank_on; bool suspended; + bool direct_vblank; struct work_struct work; struct mutex lock; }; @@ -224,6 +225,15 @@ static int vidi_enable_vblank(struct device *dev) if (!test_and_set_bit(0, &ctx->irq_flags)) ctx->vblank_on = true; + ctx->direct_vblank = true; + + /* + * in case of page flip request, vidi_finish_pageflip function + * will not be called because direct_vblank is true and then + * that function will be called by overlay_ops->commit callback + */ + schedule_work(&ctx->work); + return 0; } @@ -425,7 +435,17 @@ static void vidi_fake_vblank_handler(struct work_struct *work) /* refresh rate is about 50Hz. */ usleep_range(16000, 20000); - drm_handle_vblank(subdrv->drm_dev, manager->pipe); + mutex_lock(&ctx->lock); + + if (ctx->direct_vblank) { + drm_handle_vblank(subdrv->drm_dev, manager->pipe); + ctx->direct_vblank = false; + mutex_unlock(&ctx->lock); + return; + } + + mutex_unlock(&ctx->lock); + vidi_finish_pageflip(subdrv->drm_dev, manager->pipe); } |