Re: [PATCH 09/10] drm/atomic: Pass the full state to planes atomic disable and update
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: 2021-01-15 21:08:01
Also in:
dri-devel, linux-amlogic, linux-arm-msm, linux-renesas-soc, linux-samsung-soc, linux-tegra, lkml, virtualization
Hi Maxime, Thank you for the patch. On Fri, Jan 15, 2021 at 01:57:01PM +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_update and atomic_disable.
You're not starting anymore, its 09/10 already :-)
The conversion was done using the coccinelle script below, built tested on
all the drivers.
@@
identifier plane, plane_state;
symbol state;
@@
struct drm_plane_helper_funcs {
...
void (*atomic_update)(struct drm_plane *plane,
- struct drm_plane_state *plane_state);
+ struct drm_atomic_state *state);
...
}
@@
identifier plane, plane_state;
symbol state;
@@
struct drm_plane_helper_funcs {
...
void (*atomic_disable)(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_update = func,
...,
};
|
static const struct drm_plane_helper_funcs helpers = {
...,
.atomic_disable = func,
...,
};
)
@@
struct drm_plane_helper_funcs *FUNCS;
identifier f;
identifier crtc_state;
identifier plane, plane_state, state;
expression e;
@@
f(struct drm_crtc_state *crtc_state)
{
...
struct drm_atomic_state *state = e;
<+...
(
- FUNCS->atomic_disable(plane, plane_state)
+ FUNCS->atomic_disable(plane, state)
|
- FUNCS->atomic_update(plane, plane_state)
+ FUNCS->atomic_update(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 *old_plane_state)
{
<...
- state
+ old_plane_state
...>
}
@ ignores_old_state @
identifier plane_atomic_func.func;
identifier plane, old_state;
@@
func(struct drm_plane *plane, struct drm_plane_state *old_state)
{
... when != old_state
}
@ adds_old_state depends on plane_atomic_func && !ignores_old_state @
identifier plane_atomic_func.func;
identifier plane, plane_state;
@@
func(struct drm_plane *plane, struct drm_plane_state *plane_state)
{
+ struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane);
...
}
@ depends on plane_atomic_func @
identifier plane_atomic_func.func;
identifier plane, plane_state;
@@
func(struct drm_plane *plane,
- struct drm_plane_state *plane_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/...>
@@
identifier plane_atomic_func.func;
identifier plane, state;
identifier 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->state
+ state
...+>
}
Signed-off-by: Maxime Ripard <redacted>
---[snip]
drivers/gpu/drm/drm_atomic_helper.c | 8 ++++---- 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 | 4 +++- include/drm/drm_modeset_helper_vtables.h | 4 ++--
For these, Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> For drivers/gpu/drm/xlnx/zynqmp_disp.c, please see below. [snip]
quoted hunk ↗ jump to hunk
diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c b/drivers/gpu/drm/xlnx/zynqmp_disp.c index e278680b7d5a..39f9e6e76064 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_disp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c@@ -1166,8 +1166,10 @@ zynqmp_disp_plane_atomic_check(struct drm_plane *plane, static void zynqmp_disp_plane_atomic_disable(struct drm_plane *plane, - struct drm_plane_state *old_state) + struct drm_atomic_state *state) { + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); struct zynqmp_disp_layer *layer = plane_to_layer(plane); if (!old_state->fb)@@ -1178,8 +1180,10 @@ zynqmp_disp_plane_atomic_disable(struct drm_plane *plane, static void zynqmp_disp_plane_atomic_update(struct drm_plane *plane, - struct drm_plane_state *old_state) + struct drm_atomic_state *state) { + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); struct drm_plane_state *new_state = plane->state; struct zynqmp_disp_layer *layer = plane_to_layer(plane); bool format_changed = false;@@ -1485,20 +1489,12 @@ static void zynqmp_disp_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state) { - struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, - crtc); struct zynqmp_disp *disp = crtc_to_disp(crtc); - struct drm_plane_state *old_plane_state; /* - * Disable the plane if active. The old plane state can be NULL in the - * .shutdown() path if the plane is already disabled, skip - * zynqmp_disp_plane_atomic_disable() in that case. + * Disable the plane if active. */ - old_plane_state = drm_atomic_get_old_plane_state(old_crtc_state->state, - crtc->primary); - if (old_plane_state)
You're removing this check, but there's no safeguard in zynqmp_disp_plane_atomic_disable(). Can drm_atomic_get_old_plane_state() return NULL there ?
- zynqmp_disp_plane_atomic_disable(crtc->primary, old_plane_state); + zynqmp_disp_plane_atomic_disable(crtc->primary, state); zynqmp_disp_disable(disp);
[snip]
-- Regards, Laurent Pinchart _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek