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drm/mode: Add user blob-creation ioctl

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Add an ioctl which allows users to create blob properties from supplied
data. Currently this only supports modes, creating a drm_display_mode from
the userspace drm_mode_modeinfo.

v2: Removed size/type checks.
    Rebased on new patches to allow error propagation from create_blob,
    as well as avoiding double-allocation.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Tested-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Stone
2015-05-22 13:34:51 +01:00
committed by Daniel Vetter
parent 10e8cb7e79
commit e2f5d2ea47
7 changed files with 176 additions and 5 deletions
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9
include/drm/drm_crtc.h
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@@ -218,7 +218,8 @@ struct drm_property_blob {
struct drm_mode_object base;
struct drm_device *dev;
struct kref refcount;
struct list_head head;
struct list_head head_global;
struct list_head head_file;
size_t length;
unsigned char data[];
};
@@ -1315,6 +1316,8 @@ extern const char *drm_get_dvi_i_select_name(int val);
extern const char *drm_get_tv_subconnector_name(int val);
extern const char *drm_get_tv_select_name(int val);
extern void drm_fb_release(struct drm_file *file_priv);
extern void drm_property_destroy_user_blobs(struct drm_device *dev,
struct drm_file *file_priv);
extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
extern void drm_mode_group_destroy(struct drm_mode_group *group);
extern void drm_reinit_primary_mode_group(struct drm_device *dev);
@@ -1460,6 +1463,10 @@ extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_createblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_destroyblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_getencoder(struct drm_device *dev,