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Date: Fri, 15 Jan 2021 22:39:17 +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>,
Sam Ravnborg <sam@...nborg.org>,
Boris Brezillon <bbrezillon@...nel.org>,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Ludovic Desroches <ludovic.desroches@...rochip.com>,
Maxime Ripard <mripard@...nel.org>,
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>,
Marek Vasut <marex@...x.de>, Ben Skeggs <bskeggs@...hat.com>,
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Gerd Hoffmann <kraxel@...hat.com>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Sandy Huang <hjc@...k-chips.com>,
Heiko Stübner <heiko@...ech.de>,
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Vincent Abriou <vincent.abriou@...com>,
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Philippe Cornu <philippe.cornu@...com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...com>,
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>,
Hans de Goede <hdegoede@...hat.com>,
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>,
Roland Scheidegger <sroland@...are.com>,
Hyun Kwon <hyun.kwon@...inx.com>,
Michal Simek <michal.simek@...inx.com>,
amd-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
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linux-tegra@...r.kernel.org
Subject: Re: [PATCH 04/10] drm/atomic: Pass the full state to planes
atomic_check
Hi Maxime,
Thank you for the patch.
On Fri, Jan 15, 2021 at 01:56:56PM +0100, Maxime Ripard wrote:
> The current atomic helpers have either their object state being passed as
> an argument or the full atomic state.
>
> The former is the pattern that was done at first, before switching to the
> latter for new hooks or when it was needed.
>
> Let's start convert all the remaining helpers to provide a consistent
s/start convert/convert/ ?
> interface, starting with the planes atomic_check.
>
> The conversion was done using the coccinelle script below plus some
> manual changes for vmwgfx, built tested on all the drivers.
>
> @@
> identifier plane, plane_state;
> symbol state;
> @@
>
> struct drm_plane_helper_funcs {
> ...
> int (*atomic_check)(struct drm_plane *plane,
> - struct drm_plane_state *plane_state);
> + struct drm_atomic_state *state);
> ...
> }
>
> @ plane_atomic_func @
> identifier helpers;
> identifier func;
> @@
>
> static const struct drm_plane_helper_funcs helpers = {
> ...,
> .atomic_check = func,
> ...,
> };
>
> @@
> struct drm_plane_helper_funcs *FUNCS;
> identifier f;
> identifier dev;
> identifier plane, plane_state, state;
> @@
>
> f(struct drm_device *dev, struct drm_atomic_state *state)
> {
> <+...
> - FUNCS->atomic_check(plane, plane_state)
> + FUNCS->atomic_check(plane, state)
> ...+>
> }
>
> @@
> identifier plane_atomic_func.func;
> identifier plane;
> symbol state;
> @@
>
> func(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_plane_state *new_plane_state)
> {
> <...
> - state
> + new_plane_state
> ...>
> }
>
Is this needed, or is it a leftover from 02/10 ?
> @ ignores_new_state @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
>
> func(struct drm_plane *plane, struct drm_plane_state *new_plane_state)
> {
> ... when != new_plane_state
> }
>
> @ adds_new_state depends on plane_atomic_func && !ignores_new_state @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
>
> func(struct drm_plane *plane, struct drm_plane_state *new_plane_state)
> {
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
> ...
> }
>
> @ depends on plane_atomic_func @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
>
> func(struct drm_plane *plane,
> - struct drm_plane_state *new_plane_state
> + struct drm_atomic_state *state
> )
> { ... }
>
> @ include depends on adds_new_state @
> @@
>
> #include <drm/drm_atomic.h>
>
> @ no_include depends on !include && adds_new_state @
> @@
>
> + #include <drm/drm_atomic.h>
> #include <drm/...>
>
> Signed-off-by: Maxime Ripard <maxime@...no.tech>
> ---
[snip]
> drivers/gpu/drm/drm_atomic_helper.c | 2 +-
> drivers/gpu/drm/drm_simple_kms_helper.c | 4 +++-
> drivers/gpu/drm/omapdrm/omap_plane.c | 4 +++-
> drivers/gpu/drm/rcar-du/rcar_du_plane.c | 4 +++-
> drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 5 ++++-
> drivers/gpu/drm/xlnx/zynqmp_disp.c | 4 +++-
For these,
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
[snip]
--
Regards,
Laurent Pinchart
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