[PATCH i-g-t v2] lib/igt_kms: Add igt_$obj_has_prop functions, v2.

[Maarten Lankhorst <maarten.lankhorst@linux.intel.com>]

This allows test to test whether a property is supported, in
a nice and clean way. It removes the need for special case
functions like igt_plane_supports_rotation.

Convert the users of igt_plane_supports_rotation and remove the
extra check in drm_plane_commit, this is already checked below
when setting plane properties.

Changes since v1:
- Use the correct has_prop in kms_crtc_background_color.c

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
 lib/igt_kms.c                     |  4 ---
 lib/igt_kms.h                     | 62 ++++++++++++++++++++++++++++++++++++---
 tests/kms_crtc_background_color.c |  2 +-
 tests/kms_rotation_crc.c          |  6 ++--
 4 files changed, 62 insertions(+), 12 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index ad0855d0c8fa..339c11843154 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -2110,10 +2110,6 @@ static int igt_drm_plane_commit(igt_plane_t *plane,
 
 	igt_assert(plane->drm_plane);
 
-	/* it's an error to try an unsupported feature */
-	igt_assert(igt_plane_supports_rotation(plane) ||
-		   !igt_plane_is_prop_changed(plane, IGT_PLANE_ROTATION));
-
 	fb_id = igt_plane_get_fb_id(plane);
 	crtc_id = pipe->crtc_id;
 
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index b8a04af73e2f..916cd359519a 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -374,10 +374,6 @@ bool igt_pipe_get_property(igt_pipe_t *pipe, const char *name,
 			   uint32_t *prop_id, uint64_t *value,
 			   drmModePropertyPtr *prop);
 
-static inline bool igt_plane_supports_rotation(igt_plane_t *plane)
-{
-	return plane->props[IGT_PLANE_ROTATION] != 0;
-}
 void igt_pipe_request_out_fence(igt_pipe_t *pipe);
 
 void igt_plane_set_fb(igt_plane_t *plane, struct igt_fb *fb);
@@ -493,6 +489,20 @@ static inline bool igt_output_is_connected(igt_output_t *output)
 
 #define IGT_FIXED(i,f)	((i) << 16 | (f))
 
+/**
+ * igt_plane_has_prop - Check whether plane supports a given property.
+ *
+ * @plane: Plane to check.
+ * @prop: Property to check.
+ *
+ * Returns: True if the property is supported, otherwise false.
+ */
+static inline bool
+igt_plane_has_prop(igt_plane_t *plane, enum igt_atomic_plane_properties prop)
+{
+	return plane->props[prop];
+}
+
 #define igt_plane_is_prop_changed(plane, prop) \
 	(!!((plane)->changed & (1 << (prop))))
 
@@ -512,6 +522,20 @@ extern void igt_plane_replace_prop_blob(igt_plane_t *plane,
 					enum igt_atomic_plane_properties prop,
 					const void *ptr, size_t length);
 
+/**
+ * igt_output_has_prop - Check whether output supports a given property.
+ *
+ * @output: Output to check.
+ * @prop: Property to check.
+ *
+ * Returns: True if the property is supported, otherwise false.
+ */
+static inline bool
+igt_output_has_prop(igt_output_t *output, enum igt_atomic_connector_properties prop)
+{
+	return output->props[prop];
+}
+
 #define igt_output_is_prop_changed(output, prop) \
 	(!!((output)->changed & (1 << (prop))))
 #define igt_output_set_prop_changed(output, prop) \
@@ -530,6 +554,36 @@ extern void igt_output_replace_prop_blob(igt_output_t *output,
 					 enum igt_atomic_connector_properties prop,
 					 const void *ptr, size_t length);
 
+/**
+ * igt_pipe_obj_has_prop - Check whether pipe supports a given property.
+ *
+ * @pipe: Pipe to check.
+ * @prop: Property to check.
+ *
+ * Returns: True if the property is supported, otherwise false.
+ */
+static inline bool
+igt_pipe_obj_has_prop(igt_pipe_t *pipe, enum igt_atomic_crtc_properties prop)
+{
+	return pipe->props[prop];
+}
+
+/**
+ * igt_pipe_has_prop - Check whether pipe supports a given property.
+ *
+ * @display: Pointer to display.
+ * @pipe: Pipe to check.
+ * @prop: Property to check.
+ *
+ * Returns: True if the property is supported, otherwise false.
+ */
+static inline bool
+igt_pipe_has_prop(igt_display_t *display, enum pipe pipe,
+		  enum igt_atomic_connector_properties prop)
+{
+	return display->pipes[pipe].props[prop];
+}
+
 #define igt_pipe_obj_is_prop_changed(pipe_obj, prop) \
 	(!!((pipe_obj)->changed & (1 << (prop))))
 
diff --git a/tests/kms_crtc_background_color.c b/tests/kms_crtc_background_color.c
index 659a30b90219..ecd13a56712e 100644
--- a/tests/kms_crtc_background_color.c
+++ b/tests/kms_crtc_background_color.c
@@ -137,7 +137,7 @@ static void test_crtc_background(data_t *data)
 		igt_output_set_pipe(output, pipe);
 
 		plane = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
-		igt_require(plane->pipe->props[IGT_CRTC_BACKGROUND]);
+		igt_require(igt_pipe_has_prop(display, pipe, IGT_CRTC_BACKGROUND));
 
 		prepare_crtc(data, output, pipe, plane, 1, PURPLE, BLACK64);
 
diff --git a/tests/kms_rotation_crc.c b/tests/kms_rotation_crc.c
index b8327dfa0d83..27d1f8060234 100644
--- a/tests/kms_rotation_crc.c
+++ b/tests/kms_rotation_crc.c
@@ -351,7 +351,7 @@ static void test_plane_rotation(data_t *data, int plane_type)
 		igt_output_set_pipe(output, pipe);
 
 		plane = igt_output_get_plane_type(output, plane_type);
-		igt_require(igt_plane_supports_rotation(plane));
+		igt_require(igt_plane_has_prop(plane, IGT_PLANE_ROTATION));
 
 		prepare_crtc(data, output, pipe, plane, commit);
 
@@ -438,7 +438,7 @@ static void test_plane_rotation_ytiled_obj(data_t *data,
 	int ret;
 
 	plane = igt_output_get_plane_type(output, plane_type);
-	igt_require(igt_plane_supports_rotation(plane));
+	igt_require(igt_plane_has_prop(plane, IGT_PLANE_ROTATION));
 
 	if (plane_type == DRM_PLANE_TYPE_PRIMARY || plane_type == DRM_PLANE_TYPE_CURSOR)
 		commit = COMMIT_UNIVERSAL;
@@ -504,7 +504,7 @@ static void test_plane_rotation_exhaust_fences(data_t *data,
 	int i, ret;
 
 	plane = igt_output_get_plane_type(output, plane_type);
-	igt_require(igt_plane_supports_rotation(plane));
+	igt_require(igt_plane_has_prop(plane, IGT_PLANE_ROTATION));
 
 	if (plane_type == DRM_PLANE_TYPE_PRIMARY || plane_type == DRM_PLANE_TYPE_CURSOR)
 		commit = COMMIT_UNIVERSAL;
-- 
2.14.1

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