mirror_ubuntu-kernels/drivers/gpu/drm/sti
Maxime Ripard 351f950db4
drm/atomic: Pass the full state to CRTC atomic enable/disable
If the CRTC driver ever needs to access the full DRM state, it can't do so
at atomic_enable / atomic_disable time since drm_atomic_helper_swap_state
will have cleared the pointer from the struct drm_crtc_state to the struct
drm_atomic_state before calling those hooks.

In order to allow that, let's pass the full DRM state to atomic_enable and
atomic_disable. The conversion was done using the coccinelle script below,
built tested on all the drivers and actually tested on vc4.

virtual report

@@
struct drm_crtc_helper_funcs *FUNCS;
identifier dev, state;
identifier crtc, crtc_state;
@@

 disable_outputs(struct drm_device *dev, struct drm_atomic_state *state)
 {
 	<...
-	FUNCS->atomic_disable(crtc, crtc_state);
+	FUNCS->atomic_disable(crtc, state);
 	...>
 }

@@
struct drm_crtc_helper_funcs *FUNCS;
identifier dev, state;
identifier crtc, crtc_state;
@@

 drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, struct drm_atomic_state *state)
 {
 	<...
-	FUNCS->atomic_enable(crtc, crtc_state);
+	FUNCS->atomic_enable(crtc, state);
 	...>
 }

@@
identifier crtc, old_state;
@@

 struct drm_crtc_helper_funcs {
	...
-	void (*atomic_enable)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+	void (*atomic_enable)(struct drm_crtc *crtc, struct drm_atomic_state *state);
	...
-	void (*atomic_disable)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+	void (*atomic_disable)(struct drm_crtc *crtc, struct drm_atomic_state *state);
	...
}

@ crtc_atomic_func @
identifier helpers;
identifier func;
@@

(
static struct drm_crtc_helper_funcs helpers = {
	...,
	.atomic_enable = func,
	...,
};
|
static struct drm_crtc_helper_funcs helpers = {
	...,
	.atomic_disable = func,
	...,
};
)

@ ignores_old_state @
identifier crtc_atomic_func.func;
identifier crtc, old_state;
@@

void func(struct drm_crtc *crtc,
		struct drm_crtc_state *old_state)
{
	... when != old_state
}

@ adds_old_state depends on crtc_atomic_func && !ignores_old_state @
identifier crtc_atomic_func.func;
identifier crtc, old_state;
@@

void func(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
{
+	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
	...
}

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
expression E;
type T;
@@

void func(...)
{
	...
-	T state = E;
+	T crtc_state = E;
	<+...
-	state
+	crtc_state
	...+>

}

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
type T;
@@

void func(...)
{
	...
-	T state;
+	T crtc_state;
	<+...
-	state
+	crtc_state
	...+>

}

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
identifier old_state;
identifier crtc;
@@

void func(struct drm_crtc *crtc,
-	       struct drm_crtc_state *old_state
+	       struct drm_atomic_state *state
	       )
		{ ... }

@ include depends on adds_old_state @
@@

 #include <drm/drm_atomic.h>

@ no_include depends on !include && adds_old_state @
@@

+ #include <drm/drm_atomic.h>
  #include <drm/...>

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/845aa10ef171fc0ea060495efef142a0c13f7870.1602161031.git-series.maxime@cerno.tech
2020-10-09 09:55:59 +02:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile
NOTES
sti_awg_utils.c drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_awg_utils.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_compositor.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_compositor.h drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_crtc.c drm/atomic: Pass the full state to CRTC atomic enable/disable 2020-10-09 09:55:59 +02:00
sti_crtc.h drm/sti: Convert to CRTC VBLANK callbacks 2020-02-13 13:10:09 +01:00
sti_cursor.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_cursor.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_drv.c drm/sti: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:05:45 +02:00
sti_drv.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_dvo.c drm: Remove unnecessary drm_panel_attach and drm_panel_detach 2020-08-08 09:06:33 +02:00
sti_gdp.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_gdp.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_hda.c drm: Nuke mode->vrefresh 2020-05-27 14:31:42 +03:00
sti_hdmi_tx3g4c28phy.c drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_hdmi_tx3g4c28phy.h
sti_hdmi.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sti_hdmi.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_hqvdp_lut.h
sti_hqvdp.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_mixer.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_mixer.h drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_plane.c drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_plane.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00
sti_tvout.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_vid.c drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_vid.h drm/sti: remove use of drm_debugfs functions as return values 2020-03-18 16:24:08 +01:00
sti_vtg.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
sti_vtg.h drm/sti: drop use of drmP.h 2019-06-06 17:11:26 +02:00