* [PATCH igt] igt/kms_atomic: Match CRTC harder for special planes
@ 2016-12-13 18:15 Daniel Stone
2016-12-14 7:15 ` Robert Foss
2016-12-14 9:25 ` Robert Foss
0 siblings, 2 replies; 3+ messages in thread
From: Daniel Stone @ 2016-12-13 18:15 UTC (permalink / raw)
To: intel-gfx
Our heuristic for finding planes was previously matching the type, and
ensuring that the plane was valid for that CRTC. However, VC4 now has
primary/cursor planes which can wander multiple CRTCs, so we could pick
a PRIMARY plane which was not the kernel's idea of crtc->primary,
causing plane_primary_legacy to fail; ditto for cursor.
Make find_plane try harder, by preferring to return planes which are
already on the requested CRTC.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reported-by: Robert Foss <robert.foss@collabora.com>
Cc: Eric Anholt <eric@anholt.net>
---
tests/kms_atomic.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c
index 1441fdf..e6d71c3 100644
--- a/tests/kms_atomic.c
+++ b/tests/kms_atomic.c
@@ -451,6 +451,7 @@ static struct kms_atomic_plane_state *
find_plane(struct kms_atomic_state *state, enum plane_type type,
struct kms_atomic_crtc_state *crtc)
{
+ struct kms_atomic_plane_state *ret = NULL;
int i;
for (i = 0; i < state->num_planes; i++) {
@@ -464,10 +465,18 @@ find_plane(struct kms_atomic_state *state, enum plane_type type,
continue;
plane_get_current_state(plane);
- return plane;
+
+ /* Try to find a plane that's already on this CRTC. In
+ * particular, this ensures that for special (primary/cursor)
+ * planes that can be on multiple CRTCs, we find the same
+ * one that the legacy ioctls will. */
+ if (!crtc || plane->crtc_id == crtc->obj)
+ return plane;
+
+ ret = plane;
}
- return NULL;
+ return ret;
}
static void crtc_populate_req(struct kms_atomic_crtc_state *crtc,
--
2.10.2
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH igt] igt/kms_atomic: Match CRTC harder for special planes
2016-12-13 18:15 [PATCH igt] igt/kms_atomic: Match CRTC harder for special planes Daniel Stone
@ 2016-12-14 7:15 ` Robert Foss
2016-12-14 9:25 ` Robert Foss
1 sibling, 0 replies; 3+ messages in thread
From: Robert Foss @ 2016-12-14 7:15 UTC (permalink / raw)
To: Daniel Stone, intel-gfx
Hey Daniel,
This patch looks good to me.
On 2016-12-13 01:15 PM, Daniel Stone wrote:
> Our heuristic for finding planes was previously matching the type, and
> ensuring that the plane was valid for that CRTC. However, VC4 now has
> primary/cursor planes which can wander multiple CRTCs, so we could pick
> a PRIMARY plane which was not the kernel's idea of crtc->primary,
> causing plane_primary_legacy to fail; ditto for cursor.
>
> Make find_plane try harder, by preferring to return planes which are
> already on the requested CRTC.
>
> Signed-off-by: Daniel Stone <daniels@collabora.com>
> Reported-by: Robert Foss <robert.foss@collabora.com>
> Cc: Eric Anholt <eric@anholt.net>
> ---
> tests/kms_atomic.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c
> index 1441fdf..e6d71c3 100644
> --- a/tests/kms_atomic.c
> +++ b/tests/kms_atomic.c
> @@ -451,6 +451,7 @@ static struct kms_atomic_plane_state *
> find_plane(struct kms_atomic_state *state, enum plane_type type,
> struct kms_atomic_crtc_state *crtc)
> {
> + struct kms_atomic_plane_state *ret = NULL;
> int i;
>
> for (i = 0; i < state->num_planes; i++) {
> @@ -464,10 +465,18 @@ find_plane(struct kms_atomic_state *state, enum plane_type type,
> continue;
>
> plane_get_current_state(plane);
> - return plane;
> +
> + /* Try to find a plane that's already on this CRTC. In
> + * particular, this ensures that for special (primary/cursor)
> + * planes that can be on multiple CRTCs, we find the same
> + * one that the legacy ioctls will. */
> + if (!crtc || plane->crtc_id == crtc->obj)
> + return plane;
> +
> + ret = plane;
> }
>
> - return NULL;
> + return ret;
> }
>
> static void crtc_populate_req(struct kms_atomic_crtc_state *crtc,
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH igt] igt/kms_atomic: Match CRTC harder for special planes
2016-12-13 18:15 [PATCH igt] igt/kms_atomic: Match CRTC harder for special planes Daniel Stone
2016-12-14 7:15 ` Robert Foss
@ 2016-12-14 9:25 ` Robert Foss
1 sibling, 0 replies; 3+ messages in thread
From: Robert Foss @ 2016-12-14 9:25 UTC (permalink / raw)
To: Daniel Stone, intel-gfx
Pushed, thanks.
Rob.
On 2016-12-13 01:15 PM, Daniel Stone wrote:
> Our heuristic for finding planes was previously matching the type, and
> ensuring that the plane was valid for that CRTC. However, VC4 now has
> primary/cursor planes which can wander multiple CRTCs, so we could pick
> a PRIMARY plane which was not the kernel's idea of crtc->primary,
> causing plane_primary_legacy to fail; ditto for cursor.
>
> Make find_plane try harder, by preferring to return planes which are
> already on the requested CRTC.
>
> Signed-off-by: Daniel Stone <daniels@collabora.com>
> Reported-by: Robert Foss <robert.foss@collabora.com>
> Cc: Eric Anholt <eric@anholt.net>
> ---
> tests/kms_atomic.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c
> index 1441fdf..e6d71c3 100644
> --- a/tests/kms_atomic.c
> +++ b/tests/kms_atomic.c
> @@ -451,6 +451,7 @@ static struct kms_atomic_plane_state *
> find_plane(struct kms_atomic_state *state, enum plane_type type,
> struct kms_atomic_crtc_state *crtc)
> {
> + struct kms_atomic_plane_state *ret = NULL;
> int i;
>
> for (i = 0; i < state->num_planes; i++) {
> @@ -464,10 +465,18 @@ find_plane(struct kms_atomic_state *state, enum plane_type type,
> continue;
>
> plane_get_current_state(plane);
> - return plane;
> +
> + /* Try to find a plane that's already on this CRTC. In
> + * particular, this ensures that for special (primary/cursor)
> + * planes that can be on multiple CRTCs, we find the same
> + * one that the legacy ioctls will. */
> + if (!crtc || plane->crtc_id == crtc->obj)
> + return plane;
> +
> + ret = plane;
> }
>
> - return NULL;
> + return ret;
> }
>
> static void crtc_populate_req(struct kms_atomic_crtc_state *crtc,
>
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2016-12-14 7:15 ` Robert Foss
2016-12-14 9:25 ` Robert Foss
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