From f837297ad82480024d3ad08cd84f6670bcafa862 Mon Sep 17 00:00:00 2001 From: Michel Dänzer Date: Mon, 8 Aug 2016 16:23:39 +0900 Subject: drm: Add DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These flags allow userspace to explicitly specify the target vertical blank period when a flip should take effect. v2: * Add new struct drm_mode_crtc_page_flip_target instead of modifying struct drm_mode_crtc_page_flip, to make sure all existing userspace code keeps compiling (Daniel Vetter) Acked-by: Christian König Reviewed-by: Daniel Vetter Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/drm_ioctl.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpu/drm/drm_ioctl.c') diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 33af4a5ddca1..0099d2a4d618 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -228,6 +228,7 @@ static int drm_getstats(struct drm_device *dev, void *data, static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_get_cap *req = data; + struct drm_crtc *crtc; req->value = 0; switch (req->capability) { @@ -254,6 +255,13 @@ static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_ case DRM_CAP_ASYNC_PAGE_FLIP: req->value = dev->mode_config.async_page_flip; break; + case DRM_CAP_PAGE_FLIP_TARGET: + req->value = 1; + drm_for_each_crtc(crtc, dev) { + if (!crtc->funcs->page_flip_target) + req->value = 0; + } + break; case DRM_CAP_CURSOR_WIDTH: if (dev->mode_config.cursor_width) req->value = dev->mode_config.cursor_width; -- cgit