From 351f950db4ab28c321a1bd4b92e4bb03e34c4703 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Thu, 8 Oct 2020 14:44:08 +0200
Subject: 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
---
drivers/gpu/drm/imx/dcss/dcss-crtc.c | 9 +++++++--
drivers/gpu/drm/imx/ipuv3-crtc.c | 6 ++++--
2 files changed, 11 insertions(+), 4 deletions(-)
(limited to 'drivers/gpu/drm/imx')
diff --git a/drivers/gpu/drm/imx/dcss/dcss-crtc.c b/drivers/gpu/drm/imx/dcss/dcss-crtc.c
index 36abff0890b2..8f570eb5f471 100644
--- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c
+++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c
@@ -3,6 +3,7 @@
* Copyright 2019 NXP.
*/
+#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_vblank.h>
#include <linux/platform_device.h>
@@ -77,8 +78,10 @@ static void dcss_crtc_atomic_flush(struct drm_crtc *crtc,
}
static void dcss_crtc_atomic_enable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
+ struct drm_atomic_state *state)
{
+ struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
+ crtc);
struct dcss_crtc *dcss_crtc = container_of(crtc, struct dcss_crtc,
base);
struct dcss_dev *dcss = dcss_crtc->base.dev->dev_private;
@@ -111,8 +114,10 @@ static void dcss_crtc_atomic_enable(struct drm_crtc *crtc,
}
static void dcss_crtc_atomic_disable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
+ struct drm_atomic_state *state)
{
+ struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
+ crtc);
struct dcss_crtc *dcss_crtc = container_of(crtc, struct dcss_crtc,
base);
struct dcss_dev *dcss = dcss_crtc->base.dev->dev_private;
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index d412fc265395..7ecc27c41a6a 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -47,7 +47,7 @@ static inline struct ipu_crtc *to_ipu_crtc(struct drm_crtc *crtc)
}
static void ipu_crtc_atomic_enable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_state)
+ struct drm_atomic_state *state)
{
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
@@ -79,8 +79,10 @@ static void ipu_crtc_disable_planes(struct ipu_crtc *ipu_crtc,
}
static void ipu_crtc_atomic_disable(struct drm_crtc *crtc,
- struct drm_crtc_state *old_crtc_state)
+ struct drm_atomic_state *state)
{
+ struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
+ crtc);
struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
--
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