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drm: add drm_modeset_lock|unlock_all

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This is the first step towards introducing the new modeset locking
scheme. The plan is to put helper functions into place at all the
right places step-by-step, so that the final patch to switch on the
new locking scheme doesn't need to touch every single driver.

This helper here will serve as the shotgun solutions for all places
where a more fine-grained locking isn't (yet) implemented.

v2: Fixup kerneldoc for unlock_all.

Reviewed-by: Rob Clark <rob@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-12-02 00:28:11 +01:00
commit 8484990325
4 changed files with 102 additions and 76 deletions
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3
include/drm/drm_crtc.h
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@ -842,6 +842,9 @@ struct drm_prop_enum_list {
char *name;
};
extern void drm_modeset_lock_all(struct drm_device *dev);
extern void drm_modeset_unlock_all(struct drm_device *dev);
extern int drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);