From: Maxime Ripard <maxime@cerno.tech>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Thomas Zimmermann <tzimmermann@suse.de>,
Maxime Ripard <maxime@cerno.tech>,
Daniel Vetter <daniel.vetter@intel.com>,
David Airlie <airlied@linux.ie>
Cc: Sean Paul <sean@poorly.run>,
freedreno@lists.freedesktop.org,
Tomi Valkeinen <tomba@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Jyri Sarha <jyri.sarha@iki.fi>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
linux-arm-msm@vger.kernel.org, Shawn Guo <shawnguo@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 06/10] drm: Use state helper instead of plane state pointer in atomic_check
Date: Fri, 15 Jan 2021 13:56:58 +0100 [thread overview]
Message-ID: <20210115125703.1315064-6-maxime@cerno.tech> (raw)
In-Reply-To: <20210115125703.1315064-1-maxime@cerno.tech>
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/...>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/gpu/drm/imx/ipuv3-plane.c | 3 ++-
drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 4 +++-
drivers/gpu/drm/tilcdc/tilcdc_plane.c | 3 ++-
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index bf8058bb8206..6b49688652f0 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -348,7 +348,8 @@ 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/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
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next prev parent reply other threads:[~2021-01-16 10:45 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-15 12:56 [PATCH 01/10] drm/atomic: Pass the full state to planes async atomic check and update Maxime Ripard
2021-01-15 12:56 ` [PATCH 02/10] drm: Rename plane atomic_check state names Maxime Ripard
2021-01-15 13:46 ` Thomas Zimmermann
2021-01-15 14:13 ` Maxime Ripard
2021-01-15 20:28 ` Laurent Pinchart
2021-01-15 12:56 ` [PATCH 03/10] drm/atmel-hlcdc: Rename custom plane state variable Maxime Ripard
2021-01-15 20:43 ` Sam Ravnborg
2021-01-18 17:02 ` Maxime Ripard
2021-01-15 12:56 ` [PATCH 04/10] drm/atomic: Pass the full state to planes atomic_check Maxime Ripard
2021-01-15 20:39 ` Laurent Pinchart
2021-01-15 12:56 ` [PATCH 05/10] drm: Use the state pointer directly in " Maxime Ripard
2021-01-15 20:42 ` Laurent Pinchart
2021-01-15 12:56 ` Maxime Ripard [this message]
2021-01-15 12:56 ` [PATCH 07/10] drm: Store new plane state in a variable for atomic_update and disable Maxime Ripard
2021-01-15 20:57 ` Laurent Pinchart
2021-01-15 12:57 ` [PATCH 08/10] drm: Rename plane->state variables in atomic update " Maxime Ripard
2021-01-15 12:57 ` [PATCH 09/10] drm/atomic: Pass the full state to planes atomic disable and update Maxime Ripard
2021-01-15 21:06 ` Laurent Pinchart
2021-01-15 12:57 ` [PATCH 10/10] drm: Use state helper instead of the plane state pointer Maxime Ripard
2021-01-15 21:20 ` Laurent Pinchart
2021-01-20 13:50 ` Maxime Ripard
2021-01-15 13:34 ` [PATCH 01/10] drm/atomic: Pass the full state to planes async atomic check and update Thomas Zimmermann
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