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.syrj...@linux.intel.com>
Signed-off-by: Maxime Ripard <max...@cerno.tech>
---
Changes from v2:
- s/.../<.../ in the coccinelle script as suggested by Ville
---
drivers/gpu/drm/imx/ipuv3-plane.c | 3 ++-
drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 16 +++++++++-------
drivers/gpu/drm/ingenic/ingenic-ipu.c | 8 +++++---
drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 4 +++-
drivers/gpu/drm/tilcdc/tilcdc_plane.c | 3 ++-
5 files changed, 21 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c
b/drivers/gpu/drm/imx/ipuv3-plane.c
index b5f6123850bb..6484592e3f86 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -341,7 +341,8 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
{
struct drm_plane_state *new_state =
drm_atomic_get_new_plane_state(state,
plane);
- struct drm_plane_state *old_state = plane->state;
+ struct drm_plane_state *old_state =
drm_atomic_get_old_plane_state(state,
+
plane);
struct drm_crtc_state *crtc_state;
struct device *dev = plane->dev->dev;
struct drm_framebuffer *fb = new_state->fb;
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index e6d7d0a04ddb..c022d9f1e737 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -361,11 +361,13 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc
*crtc,
static int ingenic_drm_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
+ struct drm_plane_state *old_plane_state =
drm_atomic_get_old_plane_state(state,
+
plane);
struct drm_plane_state *new_plane_state =
drm_atomic_get_new_plane_state(state,
plane);
struct ingenic_drm *priv = drm_device_get_priv(plane->dev);
struct drm_crtc_state *crtc_state;
- struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc;
+ struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc;
int ret;
if (!crtc)
@@ -399,12 +401,12 @@ static int ingenic_drm_plane_atomic_check(struct
drm_plane *plane,
* its position, size or depth.
*/
if (priv->soc_info->has_osd &&
- (!plane->state->fb || !new_plane_state->fb ||
- plane->state->crtc_x != new_plane_state->crtc_x ||
- plane->state->crtc_y != new_plane_state->crtc_y ||
- plane->state->crtc_w != new_plane_state->crtc_w ||
- plane->state->crtc_h != new_plane_state->crtc_h ||
- plane->state->fb->format->format !=
new_plane_state->fb->format->format))
+ (!old_plane_state->fb || !new_plane_state->fb ||
+ old_plane_state->crtc_x != new_plane_state->crtc_x ||
+ old_plane_state->crtc_y != new_plane_state->crtc_y ||
+ old_plane_state->crtc_w != new_plane_state->crtc_w ||
+ old_plane_state->crtc_h != new_plane_state->crtc_h ||
+ old_plane_state->fb->format->format !=
new_plane_state->fb->format->format))
crtc_state->mode_changed = true;
return 0;
diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c
b/drivers/gpu/drm/ingenic/ingenic-ipu.c
index 1e1b0fe095bd..3d072b25e1c4 100644
--- a/drivers/gpu/drm/ingenic/ingenic-ipu.c
+++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c
@@ -516,11 +516,13 @@ static void ingenic_ipu_plane_atomic_update(struct
drm_plane *plane,
static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
+ struct drm_plane_state *old_plane_state =
drm_atomic_get_old_plane_state(state,
+
plane);
struct drm_plane_state *new_plane_state =
drm_atomic_get_new_plane_state(state,
plane);
unsigned int num_w, denom_w, num_h, denom_h, xres, yres, max_w, max_h;
struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane);
- struct drm_crtc *crtc = new_plane_state->crtc ?: plane->state->crtc;
+ struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc;
struct drm_crtc_state *crtc_state;
if (!crtc)
@@ -531,7 +533,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane
*plane,
return -EINVAL;
/* Request a full modeset if we are enabling or disabling the IPU. */
- if (!plane->state->crtc ^ !new_plane_state->crtc)
+ if (!old_plane_state->crtc ^ !new_plane_state->crtc)
crtc_state->mode_changed = true;
if (!new_plane_state->crtc ||
@@ -552,7 +554,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane
*plane,
if (((new_plane_state->src_w >> 16) & 1) || (new_plane_state->crtc_w &
1))
return -EINVAL;
- if (!osd_changed(new_plane_state, plane->state))
+ if (!osd_changed(new_plane_state, old_plane_state))
return 0;
crtc_state->mode_changed = true;
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
index 4aac6217a5ad..6ce6ce09fecc 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
@@ -406,12 +406,14 @@ static int mdp5_plane_atomic_check_with_state(struct
drm_crtc_state *crtc_state,
static int mdp5_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
+ struct drm_plane_state *old_plane_state =
drm_atomic_get_old_plane_state(state,
+
plane);
struct drm_plane_state *new_plane_state =
drm_atomic_get_new_plane_state(state,
plane);
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
- crtc = new_plane_state->crtc ? new_plane_state->crtc :
plane->state->crtc;
+ crtc = new_plane_state->crtc ? new_plane_state->crtc :
old_plane_state->crtc;
if (!crtc)
return 0;
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)
--
2.29.2
