[PATCH 3/8] drm: helpers to find mode objects

28 May 2014

Add a few more useful helpers to find mode objects.
Signed-off-by: Rob Clark robdclark@gmail.com
---
 drivers/gpu/drm/drm_crtc.c | 90 +++++++++++++++-------------------------------
 include/drm/drm_crtc.h     | 33 +++++++++++++++++
 2 files changed, 61 insertions(+), 62 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 88a0741..c53ddc3 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1711,7 +1711,6 @@ int drm_mode_getcrtc(struct drm_device *dev,
 {
    struct drm_mode_crtc *crtc_resp = data;
    struct drm_crtc *crtc;
-	struct drm_mode_object *obj;
    int ret = 0;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
@@ -1719,13 +1718,11 @@ int drm_mode_getcrtc(struct drm_device *dev,
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
-				   DRM_MODE_OBJECT_CRTC);
-	if (!obj) {
+	crtc = drm_crtc_find(dev, crtc_resp->crtc_id);
+	if (!crtc) {
    	ret = -ENOENT;
    	goto out;
    }
-	crtc = obj_to_crtc(obj);
crtc_resp->x = crtc->x;
    crtc_resp->y = crtc->y;
@@ -1779,7 +1776,6 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
    		  struct drm_file *file_priv)
 {
    struct drm_mode_get_connector *out_resp = data;
-	struct drm_mode_object *obj;
    struct drm_connector *connector;
    struct drm_display_mode *mode;
    int mode_count = 0;
@@ -1803,13 +1799,11 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
mutex_lock(&dev->mode_config.mutex);
-	obj = drm_mode_object_find(dev, out_resp->connector_id,
-				   DRM_MODE_OBJECT_CONNECTOR);
-	if (!obj) {
+	connector = drm_connector_find(dev, out_resp->connector_id);
+	if (!connector) {
    	ret = -ENOENT;
    	goto out;
    }
-	connector = obj_to_connector(obj);
props_count = connector->properties.count;
@@ -1924,7 +1918,6 @@ int drm_mode_getencoder(struct drm_device *dev, void *data,
    		struct drm_file *file_priv)
 {
    struct drm_mode_get_encoder *enc_resp = data;
-	struct drm_mode_object *obj;
    struct drm_encoder *encoder;
    int ret = 0;
@@ -1932,13 +1925,11 @@ int drm_mode_getencoder(struct drm_device *dev, void *data,
    	return -EINVAL;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
-				   DRM_MODE_OBJECT_ENCODER);
-	if (!obj) {
+	encoder = drm_encoder_find(dev, enc_resp->encoder_id);
+	if (!encoder) {
    	ret = -ENOENT;
    	goto out;
    }
-	encoder = obj_to_encoder(obj);
if (encoder->crtc)
    	enc_resp->crtc_id = encoder->crtc->base.id;
@@ -2036,7 +2027,6 @@ int drm_mode_getplane(struct drm_device *dev, void *data,
    	      struct drm_file *file_priv)
 {
    struct drm_mode_get_plane *plane_resp = data;
-	struct drm_mode_object *obj;
    struct drm_plane *plane;
    uint32_t __user *format_ptr;
    int ret = 0;
@@ -2045,13 +2035,11 @@ int drm_mode_getplane(struct drm_device *dev, void *data,
    	return -EINVAL;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, plane_resp->plane_id,
-				   DRM_MODE_OBJECT_PLANE);
-	if (!obj) {
+	plane = drm_plane_find(dev, plane_resp->plane_id);
+	if (!plane) {
    	ret = -ENOENT;
    	goto out;
    }
-	plane = obj_to_plane(obj);
if (plane->crtc)
    	plane_resp->crtc_id = plane->crtc->base.id;
@@ -2104,7 +2092,6 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
    	      struct drm_file *file_priv)
 {
    struct drm_mode_set_plane *plane_req = data;
-	struct drm_mode_object *obj;
    struct drm_plane *plane;
    struct drm_crtc *crtc;
    struct drm_framebuffer *fb = NULL, *old_fb = NULL;
@@ -2119,14 +2106,12 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
     * First, find the plane, crtc, and fb objects.  If not available,
     * we don't bother to call the driver.
     */
-	obj = drm_mode_object_find(dev, plane_req->plane_id,
-				   DRM_MODE_OBJECT_PLANE);
-	if (!obj) {
+	plane = drm_plane_find(dev, plane_req->plane_id);
+	if (!plane) {
    	DRM_DEBUG_KMS("Unknown plane ID %d\n",
    		      plane_req->plane_id);
    	return -ENOENT;
    }
-	plane = obj_to_plane(obj);
/* No fb means shut it down */
    if (!plane_req->fb_id) {
@@ -2143,15 +2128,13 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
    	goto out;
    }
-	obj = drm_mode_object_find(dev, plane_req->crtc_id,
-				   DRM_MODE_OBJECT_CRTC);
-	if (!obj) {
+	crtc = drm_crtc_find(dev, plane_req->crtc_id);
+	if (!crtc) {
    	DRM_DEBUG_KMS("Unknown crtc ID %d\n",
    		      plane_req->crtc_id);
    	ret = -ENOENT;
    	goto out;
    }
-	crtc = obj_to_crtc(obj);
fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
    if (!fb) {
@@ -2338,7 +2321,6 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 {
    struct drm_mode_config *config = &dev->mode_config;
    struct drm_mode_crtc *crtc_req = data;
-	struct drm_mode_object *obj;
    struct drm_crtc *crtc;
    struct drm_connector **connector_set = NULL, *connector;
    struct drm_framebuffer *fb = NULL;
@@ -2356,14 +2338,12 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
    	return -ERANGE;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
-				   DRM_MODE_OBJECT_CRTC);
-	if (!obj) {
+	crtc = drm_crtc_find(dev, crtc_req->crtc_id);
+	if (!crtc) {
    	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
    	ret = -ENOENT;
    	goto out;
    }
-	crtc = obj_to_crtc(obj);
    DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
if (crtc_req->mode_valid) {
@@ -2446,15 +2426,13 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
    			goto out;
    		}
-			obj = drm_mode_object_find(dev, out_id,
-						   DRM_MODE_OBJECT_CONNECTOR);
-			if (!obj) {
+			connector = drm_connector_find(dev, out_id);
+			if (!connector) {
    			DRM_DEBUG_KMS("Connector id %d unknown\n",
    					out_id);
    			ret = -ENOENT;
    			goto out;
    		}
-			connector = obj_to_connector(obj);
    		DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
    				connector->base.id,
    				drm_get_connector_name(connector));
@@ -2486,7 +2464,6 @@ static int drm_mode_cursor_common(struct drm_device *dev,
    			  struct drm_mode_cursor2 *req,
    			  struct drm_file *file_priv)
 {
-	struct drm_mode_object *obj;
    struct drm_crtc *crtc;
    int ret = 0;
@@ -2496,12 +2473,11 @@ static int drm_mode_cursor_common(struct drm_device *dev,
    if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
    	return -EINVAL;
-	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
-	if (!obj) {
+	crtc = drm_crtc_find(dev, req->crtc_id);
+	if (!crtc) {
    	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
    	return -ENOENT;
    }
-	crtc = obj_to_crtc(obj);
mutex_lock(&crtc->mutex);
    if (req->flags & DRM_MODE_CURSOR_BO) {
@@ -3497,7 +3473,6 @@ EXPORT_SYMBOL(drm_object_property_get_value);
 int drm_mode_getproperty_ioctl(struct drm_device *dev,
    		       void *data, struct drm_file *file_priv)
 {
-	struct drm_mode_object *obj;
    struct drm_mode_get_property *out_resp = data;
    struct drm_property *property;
    int enum_count = 0;
@@ -3516,12 +3491,11 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
    	return -EINVAL;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
-	if (!obj) {
+	property = drm_property_find(dev, out_resp->prop_id);
+	if (!property) {
    	ret = -ENOENT;
    	goto done;
    }
-	property = obj_to_property(obj);
if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
    		drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
@@ -3651,7 +3625,6 @@ static void drm_property_destroy_blob(struct drm_device *dev,
 int drm_mode_getblob_ioctl(struct drm_device *dev,
    		   void *data, struct drm_file *file_priv)
 {
-	struct drm_mode_object *obj;
    struct drm_mode_get_blob *out_resp = data;
    struct drm_property_blob *blob;
    int ret = 0;
@@ -3661,12 +3634,11 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
    	return -EINVAL;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
-	if (!obj) {
+	blob = drm_property_blob_find(dev, out_resp->blob_id);
+	if (!blob) {
    	ret = -ENOENT;
    	goto done;
    }
-	blob = obj_to_blob(obj);
if (out_resp->length == blob->length) {
    	blob_ptr = (void __user *)(unsigned long)out_resp->data;
@@ -4060,7 +4032,6 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
    		     void *data, struct drm_file *file_priv)
 {
    struct drm_mode_crtc_lut *crtc_lut = data;
-	struct drm_mode_object *obj;
    struct drm_crtc *crtc;
    void *r_base, *g_base, *b_base;
    int size;
@@ -4070,12 +4041,11 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
    	return -EINVAL;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
-	if (!obj) {
+	crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
+	if (!crtc) {
    	ret = -ENOENT;
    	goto out;
    }
-	crtc = obj_to_crtc(obj);
if (crtc->funcs->gamma_set == NULL) {
    	ret = -ENOSYS;
@@ -4134,7 +4104,6 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev,
    		     void *data, struct drm_file *file_priv)
 {
    struct drm_mode_crtc_lut *crtc_lut = data;
-	struct drm_mode_object *obj;
    struct drm_crtc *crtc;
    void *r_base, *g_base, *b_base;
    int size;
@@ -4144,12 +4113,11 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev,
    	return -EINVAL;
drm_modeset_lock_all(dev);
-	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
-	if (!obj) {
+	crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
+	if (!crtc) {
    	ret = -ENOENT;
    	goto out;
    }
-	crtc = obj_to_crtc(obj);
/* memcpy into gamma store */
    if (crtc_lut->gamma_size != crtc->gamma_size) {
@@ -4202,7 +4170,6 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
    		     void *data, struct drm_file *file_priv)
 {
    struct drm_mode_crtc_page_flip *page_flip = data;
-	struct drm_mode_object *obj;
    struct drm_crtc *crtc;
    struct drm_framebuffer *fb = NULL, *old_fb = NULL;
    struct drm_pending_vblank_event *e = NULL;
@@ -4216,10 +4183,9 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
    if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
    	return -EINVAL;
-	obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
-	if (!obj)
+	crtc = drm_crtc_find(dev, page_flip->crtc_id);
+	if (!crtc)
    	return -ENOENT;
-	crtc = obj_to_crtc(obj);
mutex_lock(&crtc->mutex);
    if (crtc->primary->fb == NULL) {
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9bd3551..dbd7954 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1102,6 +1102,15 @@ extern int drm_format_vert_chroma_subsampling(uint32_t format);
 extern const char *drm_get_format_name(uint32_t format);
/* Helpers */
+
+static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
+		uint32_t id)
+{
+	struct drm_mode_object *mo;
+	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE);
+	return mo ? obj_to_plane(mo) : NULL;
+}
+
 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
    uint32_t id)
 {
@@ -1118,6 +1127,30 @@ static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
    return mo ? obj_to_encoder(mo) : NULL;
 }
+static inline struct drm_connector *drm_connector_find(struct drm_device *dev,
+		uint32_t id)
+{
+	struct drm_mode_object *mo;
+	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
+	return mo ? obj_to_connector(mo) : NULL;
+}
+
+static inline struct drm_property *drm_property_find(struct drm_device *dev,
+		uint32_t id)
+{
+	struct drm_mode_object *mo;
+	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
+	return mo ? obj_to_property(mo) : NULL;
+}
+
+static inline struct drm_property_blob *
+drm_property_blob_find(struct drm_device *dev, uint32_t id)
+{
+	struct drm_mode_object *mo;
+	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_BLOB);
+	return mo ? obj_to_blob(mo) : NULL;
+}
+
 /* Plane list iterator for legacy (overlay only) planes. */
 #define drm_for_each_legacy_plane(plane, planelist) \
    list_for_each_entry(plane, planelist, head) \
-- 
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[PATCH 3/8] drm: helpers to find mode objects