diff options
| author | Maxime Ripard <maxime@cerno.tech> | 2021-02-19 13:00:26 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2021-02-24 20:27:05 +0100 |
| commit | 0b6aaf9d76f0420be015b97724ff764844d7c46d (patch) | |
| tree | 4f33798cc993226a5ca09014d146f77bc1200aba /drivers/gpu/drm/tilcdc | |
| parent | dec92020671c48da231189eb06a5f755f492f87f (diff) | |
drm: Use state helper instead of plane state pointer in atomic_check
Many drivers reference the plane->state pointer in order to get the
current plane state in their atomic_check hook, which would be the old
plane state in the global atomic state since _swap_state hasn't happened
when atomic_check is run.
Use the drm_atomic_get_old_plane_state helper to get that state to make
it more obvious.
This was made using the coccinelle script below:
@ plane_atomic_func @
identifier helpers;
identifier func;
@@
static struct drm_plane_helper_funcs helpers = {
...,
.atomic_check = func,
...,
};
@ replaces_old_state @
identifier plane_atomic_func.func;
identifier plane, state, plane_state;
@@
func(struct drm_plane *plane, struct drm_atomic_state *state) {
...
- struct drm_plane_state *plane_state = plane->state;
+ struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane);
...
}
@@
identifier plane_atomic_func.func;
identifier plane, state, plane_state;
@@
func(struct drm_plane *plane, struct drm_atomic_state *state) {
struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane);
<...
- plane->state
+ plane_state
...>
}
@ adds_old_state @
identifier plane_atomic_func.func;
identifier plane, state;
@@
func(struct drm_plane *plane, struct drm_atomic_state *state) {
+ struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane);
<...
- plane->state
+ old_plane_state
...>
}
@ include depends on adds_old_state || replaces_old_state @
@@
#include <drm/drm_atomic.h>
@ no_include depends on !include && (adds_old_state || replaces_old_state) @
@@
+ #include <drm/drm_atomic.h>
#include <drm/...>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219120032.260676-6-maxime@cerno.tech
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_plane.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_plane.c b/drivers/gpu/drm/tilcdc/tilcdc_plane.c index ebdd42dcaf82..c86258132432 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_plane.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_plane.c @@ -26,7 +26,8 @@ static int tilcdc_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct drm_crtc_state *crtc_state; - struct drm_plane_state *old_state = plane->state; + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); unsigned int pitch; if (!new_state->crtc) |