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Message-ID: <YAH7C0EOsisHhqvR@pendragon.ideasonboard.com>
Date: Fri, 15 Jan 2021 22:28:59 +0200
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Maxime Ripard <maxime@...no.tech>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Thomas Zimmermann <tzimmermann@...e.de>,
Daniel Vetter <daniel.vetter@...el.com>,
David Airlie <airlied@...ux.ie>,
dri-devel@...ts.freedesktop.org,
Harry Wentland <harry.wentland@....com>,
Leo Li <sunpeng.li@....com>,
Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
Daniel Vetter <daniel@...ll.ch>,
"James (Qian) Wang" <james.qian.wang@....com>,
Liviu Dudau <liviu.dudau@....com>,
Mihail Atanassov <mihail.atanassov@....com>,
Brian Starkey <brian.starkey@....com>,
Russell King <linux@...linux.org.uk>,
Dave Airlie <airlied@...hat.com>,
Inki Dae <inki.dae@...sung.com>,
Joonyoung Shim <jy0922.shim@...sung.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Stefan Agner <stefan@...er.ch>,
Alison Wang <alison.wang@....com>,
Xinliang Liu <xinliang.liu@...aro.org>,
Tian Tao <tiantao6@...ilicon.com>,
John Stultz <john.stultz@...aro.org>,
Xinwei Kong <kong.kongxinwei@...ilicon.com>,
Chen Feng <puck.chen@...ilicon.com>,
Laurentiu Palcu <laurentiu.palcu@....nxp.com>,
Lucas Stach <l.stach@...gutronix.de>,
Philipp Zabel <p.zabel@...gutronix.de>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Paul Cercueil <paul@...pouillou.net>,
Anitha Chrisanthus <anitha.chrisanthus@...el.com>,
Edmund Dea <edmund.j.dea@...el.com>,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Neil Armstrong <narmstrong@...libre.com>,
Kevin Hilman <khilman@...libre.com>,
Jerome Brunet <jbrunet@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
Ben Skeggs <bskeggs@...hat.com>,
Tomi Valkeinen <tomba@...nel.org>,
Gerd Hoffmann <kraxel@...hat.com>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Sandy Huang <hjc@...k-chips.com>,
Heiko Stübner <heiko@...ech.de>,
Benjamin Gaignard <benjamin.gaignard@...aro.org>,
Vincent Abriou <vincent.abriou@...com>,
Yannick Fertre <yannick.fertre@...com>,
Philippe Cornu <philippe.cornu@...com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...com>,
Maxime Ripard <mripard@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...l.net>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Jyri Sarha <jyri.sarha@....fi>, Eric Anholt <eric@...olt.net>,
Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>,
Melissa Wen <melissa.srw@...il.com>,
Haneen Mohammed <hamohammed.sa@...il.com>,
VMware Graphics <linux-graphics-maintainer@...are.com>,
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Michal Simek <michal.simek@...inx.com>,
amd-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
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Subject: Re: [PATCH 02/10] drm: Rename plane atomic_check state names
Hi Maxime,
Thank you for the patch.
On Fri, Jan 15, 2021 at 01:56:54PM +0100, Maxime Ripard wrote:
> Most drivers call the argument to the plane atomic_check hook simply
> state, which is going to conflict with the global atomic state in a
> later rework. Let's rename it to new_plane_state (or new_state depending
> on the convention used in the driver).
>
> This was done using the coccinelle script below, and built tested:
>
> @ plane_atomic_func @
> identifier helpers;
> identifier func;
> @@
>
> static const struct drm_plane_helper_funcs helpers = {
> .atomic_check = func,
> };
>
> @ has_old_state @
> identifier plane_atomic_func.func;
> identifier plane;
> expression e;
> symbol old_state;
> symbol state;
> @@
>
> func(struct drm_plane *plane, struct drm_plane_state *state)
> {
> ...
> struct drm_plane_state *old_state = e;
> ...
> }
>
> @ depends on has_old_state @
> identifier plane_atomic_func.func;
> identifier plane;
> symbol old_state;
> @@
>
> func(struct drm_plane *plane,
> - struct drm_plane_state *state
> + struct drm_plane_state *new_state
> )
> {
> <+...
> - state
> + new_state
> ...+>
> }
>
> @ has_state @
> identifier plane_atomic_func.func;
> identifier plane;
> symbol state;
> @@
>
> func(struct drm_plane *plane, struct drm_plane_state *state)
> {
> ...
> }
>
> @ depends on has_state @
> identifier plane_atomic_func.func;
> identifier plane;
> symbol old_state;
> @@
>
> func(struct drm_plane *plane,
> - struct drm_plane_state *state
> + struct drm_plane_state *new_plane_state
> )
> {
> <+...
> - state
> + new_plane_state
> ...+>
> }
>
> Signed-off-by: Maxime Ripard <maxime@...no.tech>
> ---
[...]
> drivers/gpu/drm/omapdrm/omap_plane.c | 19 +++++----
> drivers/gpu/drm/rcar-du/rcar_du_plane.c | 7 ++--
> drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 7 ++--
> drivers/gpu/drm/xlnx/zynqmp_disp.c | 10 +++--
For these, with the comment below addressed,
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> 41 files changed, 402 insertions(+), 357 deletions(-)
[snip]
> diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
> index 51dc24acea73..78d0eb1fd69d 100644
> --- a/drivers/gpu/drm/omapdrm/omap_plane.c
> +++ b/drivers/gpu/drm/omapdrm/omap_plane.c
> @@ -99,18 +99,19 @@ static void omap_plane_atomic_disable(struct drm_plane *plane,
> }
>
> static int omap_plane_atomic_check(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_plane_state *new_plane_state)
> {
> struct drm_crtc_state *crtc_state;
>
> - if (!state->fb)
> + if (!new_plane_state->fb)
> return 0;
>
> /* crtc should only be NULL when disabling (i.e., !state->fb) */
s/state/new_plane_state/ here too ?
> - if (WARN_ON(!state->crtc))
> + if (WARN_ON(!new_plane_state->crtc))
> return 0;
>
> - crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
> + crtc_state = drm_atomic_get_existing_crtc_state(new_plane_state->state,
> + new_plane_state->crtc);
> /* we should have a crtc state if the plane is attached to a crtc */
> if (WARN_ON(!crtc_state))
> return 0;
> @@ -118,17 +119,17 @@ static int omap_plane_atomic_check(struct drm_plane *plane,
> if (!crtc_state->enable)
> return 0;
>
> - if (state->crtc_x < 0 || state->crtc_y < 0)
> + if (new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0)
> return -EINVAL;
>
> - if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
> + if (new_plane_state->crtc_x + new_plane_state->crtc_w > crtc_state->adjusted_mode.hdisplay)
I can't help thinking we're using too long variable names... :-(
> return -EINVAL;
>
> - if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
> + if (new_plane_state->crtc_y + new_plane_state->crtc_h > crtc_state->adjusted_mode.vdisplay)
> return -EINVAL;
>
> - if (state->rotation != DRM_MODE_ROTATE_0 &&
> - !omap_framebuffer_supports_rotation(state->fb))
> + if (new_plane_state->rotation != DRM_MODE_ROTATE_0 &&
> + !omap_framebuffer_supports_rotation(new_plane_state->fb))
> return -EINVAL;
>
> return 0;
[...]
--
Regards,
Laurent Pinchart
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