#include <drm/drm_modeset_lock.h>
#include <drm/drm_atomic.h>
#include <drm/drm_auth.h>
+#include <drm/drm_framebuffer.h>
#include "drm_crtc_internal.h"
#include "drm_internal.h"
-static struct drm_framebuffer *
-internal_framebuffer_create(struct drm_device *dev,
- const struct drm_mode_fb_cmd2 *r,
- struct drm_file *file_priv);
-
-/* Avoid boilerplate. I'm tired of typing. */
-#define DRM_ENUM_NAME_FN(fnname, list) \
- const char *fnname(int val) \
- { \
- int i; \
- for (i = 0; i < ARRAY_SIZE(list); i++) { \
- if (list[i].type == val) \
- return list[i].name; \
- } \
- return "(unknown)"; \
- }
-
/*
* Global properties
*/
-static const struct drm_prop_enum_list drm_dpms_enum_list[] = {
- { DRM_MODE_DPMS_ON, "On" },
- { DRM_MODE_DPMS_STANDBY, "Standby" },
- { DRM_MODE_DPMS_SUSPEND, "Suspend" },
- { DRM_MODE_DPMS_OFF, "Off" }
-};
-
-DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
-
static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
{ DRM_PLANE_TYPE_OVERLAY, "Overlay" },
{ DRM_PLANE_TYPE_PRIMARY, "Primary" },
/*
* Optional properties
*/
-static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = {
- { DRM_MODE_SCALE_NONE, "None" },
- { DRM_MODE_SCALE_FULLSCREEN, "Full" },
- { DRM_MODE_SCALE_CENTER, "Center" },
- { DRM_MODE_SCALE_ASPECT, "Full aspect" },
-};
-
-static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = {
- { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" },
- { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" },
- { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" },
-};
-
-/*
- * Non-global properties, but "required" for certain connectors.
- */
-static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = {
- { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
- { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
- { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
-};
-
-DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
-
-static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = {
- { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
- { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
- { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
-};
-
-DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
- drm_dvi_i_subconnector_enum_list)
-
-static const struct drm_prop_enum_list drm_tv_select_enum_list[] = {
- { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
- { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
- { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
- { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
- { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
-};
-
-DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
-
-static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = {
- { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
- { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
- { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
- { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
- { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
-};
-
-DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
- drm_tv_subconnector_enum_list)
-
-static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
- { DRM_MODE_DIRTY_OFF, "Off" },
- { DRM_MODE_DIRTY_ON, "On" },
- { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
-};
-
-struct drm_conn_prop_enum_list {
- int type;
- const char *name;
- struct ida ida;
-};
-
-/*
- * Connector and encoder types.
- */
-static struct drm_conn_prop_enum_list drm_connector_enum_list[] = {
- { DRM_MODE_CONNECTOR_Unknown, "Unknown" },
- { DRM_MODE_CONNECTOR_VGA, "VGA" },
- { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
- { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
- { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
- { DRM_MODE_CONNECTOR_Composite, "Composite" },
- { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" },
- { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
- { DRM_MODE_CONNECTOR_Component, "Component" },
- { DRM_MODE_CONNECTOR_9PinDIN, "DIN" },
- { DRM_MODE_CONNECTOR_DisplayPort, "DP" },
- { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
- { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
- { DRM_MODE_CONNECTOR_TV, "TV" },
- { DRM_MODE_CONNECTOR_eDP, "eDP" },
- { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
- { DRM_MODE_CONNECTOR_DSI, "DSI" },
- { DRM_MODE_CONNECTOR_DPI, "DPI" },
-};
-
-static const struct drm_prop_enum_list drm_encoder_enum_list[] = {
- { DRM_MODE_ENCODER_NONE, "None" },
- { DRM_MODE_ENCODER_DAC, "DAC" },
- { DRM_MODE_ENCODER_TMDS, "TMDS" },
- { DRM_MODE_ENCODER_LVDS, "LVDS" },
- { DRM_MODE_ENCODER_TVDAC, "TV" },
- { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
- { DRM_MODE_ENCODER_DSI, "DSI" },
- { DRM_MODE_ENCODER_DPMST, "DP MST" },
- { DRM_MODE_ENCODER_DPI, "DPI" },
-};
-
-static const struct drm_prop_enum_list drm_subpixel_enum_list[] = {
- { SubPixelUnknown, "Unknown" },
- { SubPixelHorizontalRGB, "Horizontal RGB" },
- { SubPixelHorizontalBGR, "Horizontal BGR" },
- { SubPixelVerticalRGB, "Vertical RGB" },
- { SubPixelVerticalBGR, "Vertical BGR" },
- { SubPixelNone, "None" },
-};
-
-void drm_connector_ida_init(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
- ida_init(&drm_connector_enum_list[i].ida);
-}
-
-void drm_connector_ida_destroy(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
- ida_destroy(&drm_connector_enum_list[i].ida);
-}
-
-/**
- * drm_get_connector_status_name - return a string for connector status
- * @status: connector status to compute name of
- *
- * In contrast to the other drm_get_*_name functions this one here returns a
- * const pointer and hence is threadsafe.
- */
-const char *drm_get_connector_status_name(enum drm_connector_status status)
-{
- if (status == connector_status_connected)
- return "connected";
- else if (status == connector_status_disconnected)
- return "disconnected";
- else
- return "unknown";
-}
-EXPORT_SYMBOL(drm_get_connector_status_name);
-
-/**
- * drm_get_subpixel_order_name - return a string for a given subpixel enum
- * @order: enum of subpixel_order
- *
- * Note you could abuse this and return something out of bounds, but that
- * would be a caller error. No unscrubbed user data should make it here.
- */
-const char *drm_get_subpixel_order_name(enum subpixel_order order)
-{
- return drm_subpixel_enum_list[order].name;
-}
-EXPORT_SYMBOL(drm_get_subpixel_order_name);
-
-/*
- * Internal function to assign a slot in the object idr and optionally
- * register the object into the idr.
- */
-static int drm_mode_object_get_reg(struct drm_device *dev,
- struct drm_mode_object *obj,
- uint32_t obj_type,
- bool register_obj,
- void (*obj_free_cb)(struct kref *kref))
-{
- int ret;
-
- mutex_lock(&dev->mode_config.idr_mutex);
- ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL);
- if (ret >= 0) {
- /*
- * Set up the object linking under the protection of the idr
- * lock so that other users can't see inconsistent state.
- */
- obj->id = ret;
- obj->type = obj_type;
- if (obj_free_cb) {
- obj->free_cb = obj_free_cb;
- kref_init(&obj->refcount);
- }
- }
- mutex_unlock(&dev->mode_config.idr_mutex);
-
- return ret < 0 ? ret : 0;
-}
-
-/**
- * drm_mode_object_get - allocate a new modeset identifier
- * @dev: DRM device
- * @obj: object pointer, used to generate unique ID
- * @obj_type: object type
- *
- * Create a unique identifier based on @ptr in @dev's identifier space. Used
- * for tracking modes, CRTCs and connectors. Note that despite the _get postfix
- * modeset identifiers are _not_ reference counted. Hence don't use this for
- * reference counted modeset objects like framebuffers.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_mode_object_get(struct drm_device *dev,
- struct drm_mode_object *obj, uint32_t obj_type)
-{
- return drm_mode_object_get_reg(dev, obj, obj_type, true, NULL);
-}
-
-static void drm_mode_object_register(struct drm_device *dev,
- struct drm_mode_object *obj)
-{
- mutex_lock(&dev->mode_config.idr_mutex);
- idr_replace(&dev->mode_config.crtc_idr, obj, obj->id);
- mutex_unlock(&dev->mode_config.idr_mutex);
-}
-
-/**
- * drm_mode_object_unregister - free a modeset identifer
- * @dev: DRM device
- * @object: object to free
- *
- * Free @id from @dev's unique identifier pool.
- * This function can be called multiple times, and guards against
- * multiple removals.
- * These modeset identifiers are _not_ reference counted. Hence don't use this
- * for reference counted modeset objects like framebuffers.
- */
-void drm_mode_object_unregister(struct drm_device *dev,
- struct drm_mode_object *object)
-{
- mutex_lock(&dev->mode_config.idr_mutex);
- if (object->id) {
- idr_remove(&dev->mode_config.crtc_idr, object->id);
- object->id = 0;
- }
- mutex_unlock(&dev->mode_config.idr_mutex);
-}
-
-static struct drm_mode_object *_object_find(struct drm_device *dev,
- uint32_t id, uint32_t type)
-{
- struct drm_mode_object *obj = NULL;
-
- mutex_lock(&dev->mode_config.idr_mutex);
- obj = idr_find(&dev->mode_config.crtc_idr, id);
- if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type)
- obj = NULL;
- if (obj && obj->id != id)
- obj = NULL;
-
- if (obj && obj->free_cb) {
- if (!kref_get_unless_zero(&obj->refcount))
- obj = NULL;
- }
- mutex_unlock(&dev->mode_config.idr_mutex);
-
- return obj;
-}
-
-/**
- * drm_mode_object_find - look up a drm object with static lifetime
- * @dev: drm device
- * @id: id of the mode object
- * @type: type of the mode object
- *
- * This function is used to look up a modeset object. It will acquire a
- * reference for reference counted objects. This reference must be dropped again
- * by callind drm_mode_object_unreference().
- */
-struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
- uint32_t id, uint32_t type)
-{
- struct drm_mode_object *obj = NULL;
-
- obj = _object_find(dev, id, type);
- return obj;
-}
-EXPORT_SYMBOL(drm_mode_object_find);
-
-/**
- * drm_mode_object_unreference - decr the object refcnt
- * @obj: mode_object
- *
- * This functions decrements the object's refcount if it is a refcounted modeset
- * object. It is a no-op on any other object. This is used to drop references
- * acquired with drm_mode_object_reference().
- */
-void drm_mode_object_unreference(struct drm_mode_object *obj)
-{
- if (obj->free_cb) {
- DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount));
- kref_put(&obj->refcount, obj->free_cb);
- }
-}
-EXPORT_SYMBOL(drm_mode_object_unreference);
-
-/**
- * drm_mode_object_reference - incr the object refcnt
- * @obj: mode_object
- *
- * This functions increments the object's refcount if it is a refcounted modeset
- * object. It is a no-op on any other object. References should be dropped again
- * by calling drm_mode_object_unreference().
- */
-void drm_mode_object_reference(struct drm_mode_object *obj)
-{
- if (obj->free_cb) {
- DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount));
- kref_get(&obj->refcount);
- }
-}
-EXPORT_SYMBOL(drm_mode_object_reference);
-
/**
* drm_crtc_force_disable - Forcibly turn off a CRTC
* @crtc: CRTC to turn off
}
EXPORT_SYMBOL(drm_crtc_force_disable_all);
-static void drm_framebuffer_free(struct kref *kref)
-{
- struct drm_framebuffer *fb =
- container_of(kref, struct drm_framebuffer, base.refcount);
- struct drm_device *dev = fb->dev;
-
- /*
- * The lookup idr holds a weak reference, which has not necessarily been
- * removed at this point. Check for that.
- */
- drm_mode_object_unregister(dev, &fb->base);
-
- fb->funcs->destroy(fb);
-}
-
-/**
- * drm_framebuffer_init - initialize a framebuffer
- * @dev: DRM device
- * @fb: framebuffer to be initialized
- * @funcs: ... with these functions
- *
- * Allocates an ID for the framebuffer's parent mode object, sets its mode
- * functions & device file and adds it to the master fd list.
- *
- * IMPORTANT:
- * This functions publishes the fb and makes it available for concurrent access
- * by other users. Which means by this point the fb _must_ be fully set up -
- * since all the fb attributes are invariant over its lifetime, no further
- * locking but only correct reference counting is required.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
- const struct drm_framebuffer_funcs *funcs)
-{
- int ret;
-
- INIT_LIST_HEAD(&fb->filp_head);
- fb->dev = dev;
- fb->funcs = funcs;
-
- ret = drm_mode_object_get_reg(dev, &fb->base, DRM_MODE_OBJECT_FB,
- false, drm_framebuffer_free);
- if (ret)
- goto out;
-
- mutex_lock(&dev->mode_config.fb_lock);
- dev->mode_config.num_fb++;
- list_add(&fb->head, &dev->mode_config.fb_list);
- mutex_unlock(&dev->mode_config.fb_lock);
-
- drm_mode_object_register(dev, &fb->base);
-out:
- return ret;
-}
-EXPORT_SYMBOL(drm_framebuffer_init);
-
-/**
- * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
- * @dev: drm device
- * @id: id of the fb object
- *
- * If successful, this grabs an additional reference to the framebuffer -
- * callers need to make sure to eventually unreference the returned framebuffer
- * again, using @drm_framebuffer_unreference.
- */
-struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
- uint32_t id)
-{
- struct drm_mode_object *obj;
- struct drm_framebuffer *fb = NULL;
-
- obj = _object_find(dev, id, DRM_MODE_OBJECT_FB);
- if (obj)
- fb = obj_to_fb(obj);
- return fb;
-}
-EXPORT_SYMBOL(drm_framebuffer_lookup);
-
-/**
- * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
- * @fb: fb to unregister
- *
- * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
- * those used for fbdev. Note that the caller must hold a reference of it's own,
- * i.e. the object may not be destroyed through this call (since it'll lead to a
- * locking inversion).
- */
-void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
-{
- struct drm_device *dev;
-
- if (!fb)
- return;
-
- dev = fb->dev;
-
- /* Mark fb as reaped and drop idr ref. */
- drm_mode_object_unregister(dev, &fb->base);
-}
-EXPORT_SYMBOL(drm_framebuffer_unregister_private);
-
-/**
- * drm_framebuffer_cleanup - remove a framebuffer object
- * @fb: framebuffer to remove
- *
- * Cleanup framebuffer. This function is intended to be used from the drivers
- * ->destroy callback. It can also be used to clean up driver private
- * framebuffers embedded into a larger structure.
- *
- * Note that this function does not remove the fb from active usuage - if it is
- * still used anywhere, hilarity can ensue since userspace could call getfb on
- * the id and get back -EINVAL. Obviously no concern at driver unload time.
- *
- * Also, the framebuffer will not be removed from the lookup idr - for
- * user-created framebuffers this will happen in in the rmfb ioctl. For
- * driver-private objects (e.g. for fbdev) drivers need to explicitly call
- * drm_framebuffer_unregister_private.
- */
-void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
-{
- struct drm_device *dev = fb->dev;
-
- mutex_lock(&dev->mode_config.fb_lock);
- list_del(&fb->head);
- dev->mode_config.num_fb--;
- mutex_unlock(&dev->mode_config.fb_lock);
-}
-EXPORT_SYMBOL(drm_framebuffer_cleanup);
-
-/**
- * drm_framebuffer_remove - remove and unreference a framebuffer object
- * @fb: framebuffer to remove
- *
- * Scans all the CRTCs and planes in @dev's mode_config. If they're
- * using @fb, removes it, setting it to NULL. Then drops the reference to the
- * passed-in framebuffer. Might take the modeset locks.
- *
- * Note that this function optimizes the cleanup away if the caller holds the
- * last reference to the framebuffer. It is also guaranteed to not take the
- * modeset locks in this case.
- */
-void drm_framebuffer_remove(struct drm_framebuffer *fb)
-{
- struct drm_device *dev;
- struct drm_crtc *crtc;
- struct drm_plane *plane;
-
- if (!fb)
- return;
-
- dev = fb->dev;
-
- WARN_ON(!list_empty(&fb->filp_head));
-
- /*
- * drm ABI mandates that we remove any deleted framebuffers from active
- * useage. But since most sane clients only remove framebuffers they no
- * longer need, try to optimize this away.
- *
- * Since we're holding a reference ourselves, observing a refcount of 1
- * means that we're the last holder and can skip it. Also, the refcount
- * can never increase from 1 again, so we don't need any barriers or
- * locks.
- *
- * Note that userspace could try to race with use and instate a new
- * usage _after_ we've cleared all current ones. End result will be an
- * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
- * in this manner.
- */
- if (drm_framebuffer_read_refcount(fb) > 1) {
- drm_modeset_lock_all(dev);
- /* remove from any CRTC */
- drm_for_each_crtc(crtc, dev) {
- if (crtc->primary->fb == fb) {
- /* should turn off the crtc */
- if (drm_crtc_force_disable(crtc))
- DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
- }
- }
-
- drm_for_each_plane(plane, dev) {
- if (plane->fb == fb)
- drm_plane_force_disable(plane);
- }
- drm_modeset_unlock_all(dev);
- }
-
- drm_framebuffer_unreference(fb);
-}
-EXPORT_SYMBOL(drm_framebuffer_remove);
-
DEFINE_WW_CLASS(crtc_ww_class);
static unsigned int drm_num_crtcs(struct drm_device *dev)
* @funcs: callbacks for the new CRTC
* @name: printf style format string for the CRTC name, or NULL for default name
*
- * Inits a new object created as base part of a driver crtc object.
+ * Inits a new object created as base part of a driver crtc object. Drivers
+ * should use this function instead of drm_crtc_init(), which is only provided
+ * for backwards compatibility with drivers which do not yet support universal
+ * planes). For really simple hardware which has only 1 plane look at
+ * drm_simple_display_pipe_init() instead.
*
* Returns:
* Zero on success, error code on failure.
}
EXPORT_SYMBOL(drm_crtc_cleanup);
-/*
- * drm_mode_remove - remove and free a mode
- * @connector: connector list to modify
- * @mode: mode to remove
- *
- * Remove @mode from @connector's mode list, then free it.
- */
-static void drm_mode_remove(struct drm_connector *connector,
- struct drm_display_mode *mode)
+int drm_modeset_register_all(struct drm_device *dev)
{
- list_del(&mode->head);
- drm_mode_destroy(connector->dev, mode);
-}
+ int ret;
-/**
- * drm_display_info_set_bus_formats - set the supported bus formats
- * @info: display info to store bus formats in
- * @formats: array containing the supported bus formats
- * @num_formats: the number of entries in the fmts array
- *
- * Store the supported bus formats in display info structure.
- * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for
- * a full list of available formats.
- */
-int drm_display_info_set_bus_formats(struct drm_display_info *info,
- const u32 *formats,
- unsigned int num_formats)
-{
- u32 *fmts = NULL;
+ ret = drm_plane_register_all(dev);
+ if (ret)
+ goto err_plane;
- if (!formats && num_formats)
- return -EINVAL;
+ ret = drm_crtc_register_all(dev);
+ if (ret)
+ goto err_crtc;
- if (formats && num_formats) {
- fmts = kmemdup(formats, sizeof(*formats) * num_formats,
- GFP_KERNEL);
- if (!fmts)
- return -ENOMEM;
- }
+ ret = drm_encoder_register_all(dev);
+ if (ret)
+ goto err_encoder;
- kfree(info->bus_formats);
- info->bus_formats = fmts;
- info->num_bus_formats = num_formats;
+ ret = drm_connector_register_all(dev);
+ if (ret)
+ goto err_connector;
return 0;
+
+err_connector:
+ drm_encoder_unregister_all(dev);
+err_encoder:
+ drm_crtc_unregister_all(dev);
+err_crtc:
+ drm_plane_unregister_all(dev);
+err_plane:
+ return ret;
}
-EXPORT_SYMBOL(drm_display_info_set_bus_formats);
-/**
- * drm_connector_get_cmdline_mode - reads the user's cmdline mode
- * @connector: connector to quwery
- *
- * The kernel supports per-connector configration of its consoles through
- * use of the video= parameter. This function parses that option and
- * extracts the user's specified mode (or enable/disable status) for a
- * particular connector. This is typically only used during the early fbdev
- * setup.
- */
-static void drm_connector_get_cmdline_mode(struct drm_connector *connector)
+void drm_modeset_unregister_all(struct drm_device *dev)
{
- struct drm_cmdline_mode *mode = &connector->cmdline_mode;
- char *option = NULL;
-
- if (fb_get_options(connector->name, &option))
- return;
-
- if (!drm_mode_parse_command_line_for_connector(option,
- connector,
- mode))
- return;
-
- if (mode->force) {
- const char *s;
-
- switch (mode->force) {
- case DRM_FORCE_OFF:
- s = "OFF";
- break;
- case DRM_FORCE_ON_DIGITAL:
- s = "ON - dig";
- break;
- default:
- case DRM_FORCE_ON:
- s = "ON";
- break;
- }
-
- DRM_INFO("forcing %s connector %s\n", connector->name, s);
- connector->force = mode->force;
- }
-
- DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n",
- connector->name,
- mode->xres, mode->yres,
- mode->refresh_specified ? mode->refresh : 60,
- mode->rb ? " reduced blanking" : "",
- mode->margins ? " with margins" : "",
- mode->interlace ? " interlaced" : "");
+ drm_connector_unregister_all(dev);
+ drm_encoder_unregister_all(dev);
+ drm_crtc_unregister_all(dev);
+ drm_plane_unregister_all(dev);
}
-static void drm_connector_free(struct kref *kref)
+static int drm_mode_create_standard_properties(struct drm_device *dev)
{
- struct drm_connector *connector =
- container_of(kref, struct drm_connector, base.refcount);
- struct drm_device *dev = connector->dev;
-
- drm_mode_object_unregister(dev, &connector->base);
- connector->funcs->destroy(connector);
-}
+ struct drm_property *prop;
+ int ret;
-/**
- * drm_connector_init - Init a preallocated connector
- * @dev: DRM device
- * @connector: the connector to init
- * @funcs: callbacks for this connector
- * @connector_type: user visible type of the connector
- *
- * Initialises a preallocated connector. Connectors should be
- * subclassed as part of driver connector objects.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_connector_init(struct drm_device *dev,
- struct drm_connector *connector,
- const struct drm_connector_funcs *funcs,
- int connector_type)
-{
- struct drm_mode_config *config = &dev->mode_config;
- int ret;
- struct ida *connector_ida =
- &drm_connector_enum_list[connector_type].ida;
-
- drm_modeset_lock_all(dev);
-
- ret = drm_mode_object_get_reg(dev, &connector->base,
- DRM_MODE_OBJECT_CONNECTOR,
- false, drm_connector_free);
- if (ret)
- goto out_unlock;
-
- connector->base.properties = &connector->properties;
- connector->dev = dev;
- connector->funcs = funcs;
-
- ret = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL);
- if (ret < 0)
- goto out_put;
- connector->index = ret;
- ret = 0;
-
- connector->connector_type = connector_type;
- connector->connector_type_id =
- ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
- if (connector->connector_type_id < 0) {
- ret = connector->connector_type_id;
- goto out_put_id;
- }
- connector->name =
- kasprintf(GFP_KERNEL, "%s-%d",
- drm_connector_enum_list[connector_type].name,
- connector->connector_type_id);
- if (!connector->name) {
- ret = -ENOMEM;
- goto out_put_type_id;
- }
-
- INIT_LIST_HEAD(&connector->probed_modes);
- INIT_LIST_HEAD(&connector->modes);
- connector->edid_blob_ptr = NULL;
- connector->status = connector_status_unknown;
-
- drm_connector_get_cmdline_mode(connector);
-
- /* We should add connectors at the end to avoid upsetting the connector
- * index too much. */
- list_add_tail(&connector->head, &config->connector_list);
- config->num_connector++;
-
- if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
- drm_object_attach_property(&connector->base,
- config->edid_property,
- 0);
-
- drm_object_attach_property(&connector->base,
- config->dpms_property, 0);
-
- if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
- drm_object_attach_property(&connector->base, config->prop_crtc_id, 0);
- }
-
- connector->debugfs_entry = NULL;
-out_put_type_id:
- if (ret)
- ida_remove(connector_ida, connector->connector_type_id);
-out_put_id:
- if (ret)
- ida_remove(&config->connector_ida, connector->index);
-out_put:
- if (ret)
- drm_mode_object_unregister(dev, &connector->base);
-
-out_unlock:
- drm_modeset_unlock_all(dev);
-
- return ret;
-}
-EXPORT_SYMBOL(drm_connector_init);
-
-/**
- * drm_connector_cleanup - cleans up an initialised connector
- * @connector: connector to cleanup
- *
- * Cleans up the connector but doesn't free the object.
- */
-void drm_connector_cleanup(struct drm_connector *connector)
-{
- struct drm_device *dev = connector->dev;
- struct drm_display_mode *mode, *t;
-
- /* The connector should have been removed from userspace long before
- * it is finally destroyed.
- */
- if (WARN_ON(connector->registered))
- drm_connector_unregister(connector);
-
- if (connector->tile_group) {
- drm_mode_put_tile_group(dev, connector->tile_group);
- connector->tile_group = NULL;
- }
-
- list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
- drm_mode_remove(connector, mode);
-
- list_for_each_entry_safe(mode, t, &connector->modes, head)
- drm_mode_remove(connector, mode);
-
- ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
- connector->connector_type_id);
-
- ida_remove(&dev->mode_config.connector_ida,
- connector->index);
-
- kfree(connector->display_info.bus_formats);
- drm_mode_object_unregister(dev, &connector->base);
- kfree(connector->name);
- connector->name = NULL;
- list_del(&connector->head);
- dev->mode_config.num_connector--;
-
- WARN_ON(connector->state && !connector->funcs->atomic_destroy_state);
- if (connector->state && connector->funcs->atomic_destroy_state)
- connector->funcs->atomic_destroy_state(connector,
- connector->state);
-
- memset(connector, 0, sizeof(*connector));
-}
-EXPORT_SYMBOL(drm_connector_cleanup);
-
-/**
- * drm_connector_register - register a connector
- * @connector: the connector to register
- *
- * Register userspace interfaces for a connector
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_connector_register(struct drm_connector *connector)
-{
- int ret;
-
- if (connector->registered)
- return 0;
-
- ret = drm_sysfs_connector_add(connector);
+ ret = drm_connector_create_standard_properties(dev);
if (ret)
return ret;
- ret = drm_debugfs_connector_add(connector);
- if (ret) {
- goto err_sysfs;
- }
-
- if (connector->funcs->late_register) {
- ret = connector->funcs->late_register(connector);
- if (ret)
- goto err_debugfs;
- }
-
- drm_mode_object_register(connector->dev, &connector->base);
-
- connector->registered = true;
- return 0;
-
-err_debugfs:
- drm_debugfs_connector_remove(connector);
-err_sysfs:
- drm_sysfs_connector_remove(connector);
- return ret;
-}
-EXPORT_SYMBOL(drm_connector_register);
-
-/**
- * drm_connector_unregister - unregister a connector
- * @connector: the connector to unregister
- *
- * Unregister userspace interfaces for a connector
- */
-void drm_connector_unregister(struct drm_connector *connector)
-{
- if (!connector->registered)
- return;
-
- if (connector->funcs->early_unregister)
- connector->funcs->early_unregister(connector);
-
- drm_sysfs_connector_remove(connector);
- drm_debugfs_connector_remove(connector);
-
- connector->registered = false;
-}
-EXPORT_SYMBOL(drm_connector_unregister);
-
-static void drm_connector_unregister_all(struct drm_device *dev)
-{
- struct drm_connector *connector;
-
- /* FIXME: taking the mode config mutex ends up in a clash with sysfs */
- list_for_each_entry(connector, &dev->mode_config.connector_list, head)
- drm_connector_unregister(connector);
-}
-
-static int drm_connector_register_all(struct drm_device *dev)
-{
- struct drm_connector *connector;
- int ret;
-
- /* FIXME: taking the mode config mutex ends up in a clash with
- * fbcon/backlight registration */
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
- ret = drm_connector_register(connector);
- if (ret)
- goto err;
- }
-
- return 0;
-
-err:
- mutex_unlock(&dev->mode_config.mutex);
- drm_connector_unregister_all(dev);
- return ret;
-}
-
-static int drm_encoder_register_all(struct drm_device *dev)
-{
- struct drm_encoder *encoder;
- int ret = 0;
-
- drm_for_each_encoder(encoder, dev) {
- if (encoder->funcs->late_register)
- ret = encoder->funcs->late_register(encoder);
- if (ret)
- return ret;
- }
-
- return 0;
-}
+ prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
+ "type", drm_plane_type_enum_list,
+ ARRAY_SIZE(drm_plane_type_enum_list));
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.plane_type_property = prop;
-static void drm_encoder_unregister_all(struct drm_device *dev)
-{
- struct drm_encoder *encoder;
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+ "SRC_X", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_x = prop;
- drm_for_each_encoder(encoder, dev) {
- if (encoder->funcs->early_unregister)
- encoder->funcs->early_unregister(encoder);
- }
-}
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+ "SRC_Y", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_y = prop;
-/**
- * drm_encoder_init - Init a preallocated encoder
- * @dev: drm device
- * @encoder: the encoder to init
- * @funcs: callbacks for this encoder
- * @encoder_type: user visible type of the encoder
- * @name: printf style format string for the encoder name, or NULL for default name
- *
- * Initialises a preallocated encoder. Encoder should be
- * subclassed as part of driver encoder objects.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_encoder_init(struct drm_device *dev,
- struct drm_encoder *encoder,
- const struct drm_encoder_funcs *funcs,
- int encoder_type, const char *name, ...)
-{
- int ret;
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+ "SRC_W", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_w = prop;
- drm_modeset_lock_all(dev);
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+ "SRC_H", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_h = prop;
- ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
- if (ret)
- goto out_unlock;
+ prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
+ "CRTC_X", INT_MIN, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_x = prop;
- encoder->dev = dev;
- encoder->encoder_type = encoder_type;
- encoder->funcs = funcs;
- if (name) {
- va_list ap;
+ prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
+ "CRTC_Y", INT_MIN, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_y = prop;
- va_start(ap, name);
- encoder->name = kvasprintf(GFP_KERNEL, name, ap);
- va_end(ap);
- } else {
- encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
- drm_encoder_enum_list[encoder_type].name,
- encoder->base.id);
- }
- if (!encoder->name) {
- ret = -ENOMEM;
- goto out_put;
- }
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+ "CRTC_W", 0, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_w = prop;
- list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
- encoder->index = dev->mode_config.num_encoder++;
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+ "CRTC_H", 0, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_h = prop;
-out_put:
- if (ret)
- drm_mode_object_unregister(dev, &encoder->base);
+ prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
+ "FB_ID", DRM_MODE_OBJECT_FB);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_fb_id = prop;
-out_unlock:
- drm_modeset_unlock_all(dev);
+ prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
+ "CRTC_ID", DRM_MODE_OBJECT_CRTC);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_id = prop;
- return ret;
-}
-EXPORT_SYMBOL(drm_encoder_init);
+ prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
+ "ACTIVE");
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_active = prop;
-/**
- * drm_encoder_cleanup - cleans up an initialised encoder
- * @encoder: encoder to cleanup
- *
- * Cleans up the encoder but doesn't free the object.
- */
-void drm_encoder_cleanup(struct drm_encoder *encoder)
-{
- struct drm_device *dev = encoder->dev;
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
+ "MODE_ID", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_mode_id = prop;
- /* Note that the encoder_list is considered to be static; should we
- * remove the drm_encoder at runtime we would have to decrement all
- * the indices on the drm_encoder after us in the encoder_list.
- */
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB,
+ "DEGAMMA_LUT", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.degamma_lut_property = prop;
- drm_modeset_lock_all(dev);
- drm_mode_object_unregister(dev, &encoder->base);
- kfree(encoder->name);
- list_del(&encoder->head);
- dev->mode_config.num_encoder--;
- drm_modeset_unlock_all(dev);
+ prop = drm_property_create_range(dev,
+ DRM_MODE_PROP_IMMUTABLE,
+ "DEGAMMA_LUT_SIZE", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.degamma_lut_size_property = prop;
- memset(encoder, 0, sizeof(*encoder));
-}
-EXPORT_SYMBOL(drm_encoder_cleanup);
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB,
+ "CTM", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.ctm_property = prop;
-static unsigned int drm_num_planes(struct drm_device *dev)
-{
- unsigned int num = 0;
- struct drm_plane *tmp;
+ prop = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB,
+ "GAMMA_LUT", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.gamma_lut_property = prop;
- drm_for_each_plane(tmp, dev) {
- num++;
- }
+ prop = drm_property_create_range(dev,
+ DRM_MODE_PROP_IMMUTABLE,
+ "GAMMA_LUT_SIZE", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.gamma_lut_size_property = prop;
- return num;
+ return 0;
}
/**
- * drm_universal_plane_init - Initialize a new universal plane object
- * @dev: DRM device
- * @plane: plane object to init
- * @possible_crtcs: bitmask of possible CRTCs
- * @funcs: callbacks for the new plane
- * @formats: array of supported formats (%DRM_FORMAT_*)
- * @format_count: number of elements in @formats
- * @type: type of plane (overlay, primary, cursor)
- * @name: printf style format string for the plane name, or NULL for default name
- *
- * Initializes a plane object of type @type.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
- unsigned long possible_crtcs,
- const struct drm_plane_funcs *funcs,
- const uint32_t *formats, unsigned int format_count,
- enum drm_plane_type type,
- const char *name, ...)
-{
- struct drm_mode_config *config = &dev->mode_config;
- int ret;
-
- ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
- if (ret)
- return ret;
-
- drm_modeset_lock_init(&plane->mutex);
-
- plane->base.properties = &plane->properties;
- plane->dev = dev;
- plane->funcs = funcs;
- plane->format_types = kmalloc_array(format_count, sizeof(uint32_t),
- GFP_KERNEL);
- if (!plane->format_types) {
- DRM_DEBUG_KMS("out of memory when allocating plane\n");
- drm_mode_object_unregister(dev, &plane->base);
- return -ENOMEM;
- }
-
- if (name) {
- va_list ap;
-
- va_start(ap, name);
- plane->name = kvasprintf(GFP_KERNEL, name, ap);
- va_end(ap);
- } else {
- plane->name = kasprintf(GFP_KERNEL, "plane-%d",
- drm_num_planes(dev));
- }
- if (!plane->name) {
- kfree(plane->format_types);
- drm_mode_object_unregister(dev, &plane->base);
- return -ENOMEM;
- }
-
- memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
- plane->format_count = format_count;
- plane->possible_crtcs = possible_crtcs;
- plane->type = type;
-
- list_add_tail(&plane->head, &config->plane_list);
- plane->index = config->num_total_plane++;
- if (plane->type == DRM_PLANE_TYPE_OVERLAY)
- config->num_overlay_plane++;
-
- drm_object_attach_property(&plane->base,
- config->plane_type_property,
- plane->type);
-
- if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
- drm_object_attach_property(&plane->base, config->prop_fb_id, 0);
- drm_object_attach_property(&plane->base, config->prop_crtc_id, 0);
- drm_object_attach_property(&plane->base, config->prop_crtc_x, 0);
- drm_object_attach_property(&plane->base, config->prop_crtc_y, 0);
- drm_object_attach_property(&plane->base, config->prop_crtc_w, 0);
- drm_object_attach_property(&plane->base, config->prop_crtc_h, 0);
- drm_object_attach_property(&plane->base, config->prop_src_x, 0);
- drm_object_attach_property(&plane->base, config->prop_src_y, 0);
- drm_object_attach_property(&plane->base, config->prop_src_w, 0);
- drm_object_attach_property(&plane->base, config->prop_src_h, 0);
- }
-
- return 0;
-}
-EXPORT_SYMBOL(drm_universal_plane_init);
-
-static int drm_plane_register_all(struct drm_device *dev)
-{
- struct drm_plane *plane;
- int ret = 0;
-
- drm_for_each_plane(plane, dev) {
- if (plane->funcs->late_register)
- ret = plane->funcs->late_register(plane);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-static void drm_plane_unregister_all(struct drm_device *dev)
-{
- struct drm_plane *plane;
-
- drm_for_each_plane(plane, dev) {
- if (plane->funcs->early_unregister)
- plane->funcs->early_unregister(plane);
- }
-}
-
-/**
- * drm_plane_init - Initialize a legacy plane
- * @dev: DRM device
- * @plane: plane object to init
- * @possible_crtcs: bitmask of possible CRTCs
- * @funcs: callbacks for the new plane
- * @formats: array of supported formats (%DRM_FORMAT_*)
- * @format_count: number of elements in @formats
- * @is_primary: plane type (primary vs overlay)
- *
- * Legacy API to initialize a DRM plane.
- *
- * New drivers should call drm_universal_plane_init() instead.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
- unsigned long possible_crtcs,
- const struct drm_plane_funcs *funcs,
- const uint32_t *formats, unsigned int format_count,
- bool is_primary)
-{
- enum drm_plane_type type;
-
- type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
- return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
- formats, format_count, type, NULL);
-}
-EXPORT_SYMBOL(drm_plane_init);
-
-/**
- * drm_plane_cleanup - Clean up the core plane usage
- * @plane: plane to cleanup
- *
- * This function cleans up @plane and removes it from the DRM mode setting
- * core. Note that the function does *not* free the plane structure itself,
- * this is the responsibility of the caller.
- */
-void drm_plane_cleanup(struct drm_plane *plane)
-{
- struct drm_device *dev = plane->dev;
-
- drm_modeset_lock_all(dev);
- kfree(plane->format_types);
- drm_mode_object_unregister(dev, &plane->base);
-
- BUG_ON(list_empty(&plane->head));
-
- /* Note that the plane_list is considered to be static; should we
- * remove the drm_plane at runtime we would have to decrement all
- * the indices on the drm_plane after us in the plane_list.
- */
-
- list_del(&plane->head);
- dev->mode_config.num_total_plane--;
- if (plane->type == DRM_PLANE_TYPE_OVERLAY)
- dev->mode_config.num_overlay_plane--;
- drm_modeset_unlock_all(dev);
-
- WARN_ON(plane->state && !plane->funcs->atomic_destroy_state);
- if (plane->state && plane->funcs->atomic_destroy_state)
- plane->funcs->atomic_destroy_state(plane, plane->state);
-
- kfree(plane->name);
-
- memset(plane, 0, sizeof(*plane));
-}
-EXPORT_SYMBOL(drm_plane_cleanup);
-
-/**
- * drm_plane_from_index - find the registered plane at an index
- * @dev: DRM device
- * @idx: index of registered plane to find for
- *
- * Given a plane index, return the registered plane from DRM device's
- * list of planes with matching index.
- */
-struct drm_plane *
-drm_plane_from_index(struct drm_device *dev, int idx)
-{
- struct drm_plane *plane;
-
- drm_for_each_plane(plane, dev)
- if (idx == plane->index)
- return plane;
-
- return NULL;
-}
-EXPORT_SYMBOL(drm_plane_from_index);
-
-/**
- * drm_plane_force_disable - Forcibly disable a plane
- * @plane: plane to disable
- *
- * Forces the plane to be disabled.
- *
- * Used when the plane's current framebuffer is destroyed,
- * and when restoring fbdev mode.
- */
-void drm_plane_force_disable(struct drm_plane *plane)
-{
- int ret;
-
- if (!plane->fb)
- return;
-
- plane->old_fb = plane->fb;
- ret = plane->funcs->disable_plane(plane);
- if (ret) {
- DRM_ERROR("failed to disable plane with busy fb\n");
- plane->old_fb = NULL;
- return;
- }
- /* disconnect the plane from the fb and crtc: */
- drm_framebuffer_unreference(plane->old_fb);
- plane->old_fb = NULL;
- plane->fb = NULL;
- plane->crtc = NULL;
-}
-EXPORT_SYMBOL(drm_plane_force_disable);
-
-int drm_modeset_register_all(struct drm_device *dev)
-{
- int ret;
-
- ret = drm_plane_register_all(dev);
- if (ret)
- goto err_plane;
-
- ret = drm_crtc_register_all(dev);
- if (ret)
- goto err_crtc;
-
- ret = drm_encoder_register_all(dev);
- if (ret)
- goto err_encoder;
-
- ret = drm_connector_register_all(dev);
- if (ret)
- goto err_connector;
-
- return 0;
-
-err_connector:
- drm_encoder_unregister_all(dev);
-err_encoder:
- drm_crtc_unregister_all(dev);
-err_crtc:
- drm_plane_unregister_all(dev);
-err_plane:
- return ret;
-}
-
-void drm_modeset_unregister_all(struct drm_device *dev)
-{
- drm_connector_unregister_all(dev);
- drm_encoder_unregister_all(dev);
- drm_crtc_unregister_all(dev);
- drm_plane_unregister_all(dev);
-}
-
-static int drm_mode_create_standard_properties(struct drm_device *dev)
-{
- struct drm_property *prop;
-
- /*
- * Standard properties (apply to all connectors)
- */
- prop = drm_property_create(dev, DRM_MODE_PROP_BLOB |
- DRM_MODE_PROP_IMMUTABLE,
- "EDID", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.edid_property = prop;
-
- prop = drm_property_create_enum(dev, 0,
- "DPMS", drm_dpms_enum_list,
- ARRAY_SIZE(drm_dpms_enum_list));
- if (!prop)
- return -ENOMEM;
- dev->mode_config.dpms_property = prop;
-
- prop = drm_property_create(dev,
- DRM_MODE_PROP_BLOB |
- DRM_MODE_PROP_IMMUTABLE,
- "PATH", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.path_property = prop;
-
- prop = drm_property_create(dev,
- DRM_MODE_PROP_BLOB |
- DRM_MODE_PROP_IMMUTABLE,
- "TILE", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.tile_property = prop;
-
- prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
- "type", drm_plane_type_enum_list,
- ARRAY_SIZE(drm_plane_type_enum_list));
- if (!prop)
- return -ENOMEM;
- dev->mode_config.plane_type_property = prop;
-
- prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
- "SRC_X", 0, UINT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_src_x = prop;
-
- prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
- "SRC_Y", 0, UINT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_src_y = prop;
-
- prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
- "SRC_W", 0, UINT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_src_w = prop;
-
- prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
- "SRC_H", 0, UINT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_src_h = prop;
-
- prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
- "CRTC_X", INT_MIN, INT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_crtc_x = prop;
-
- prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
- "CRTC_Y", INT_MIN, INT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_crtc_y = prop;
-
- prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
- "CRTC_W", 0, INT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_crtc_w = prop;
-
- prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
- "CRTC_H", 0, INT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_crtc_h = prop;
-
- prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
- "FB_ID", DRM_MODE_OBJECT_FB);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_fb_id = prop;
-
- prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
- "CRTC_ID", DRM_MODE_OBJECT_CRTC);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_crtc_id = prop;
-
- prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
- "ACTIVE");
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_active = prop;
-
- prop = drm_property_create(dev,
- DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
- "MODE_ID", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.prop_mode_id = prop;
-
- prop = drm_property_create(dev,
- DRM_MODE_PROP_BLOB,
- "DEGAMMA_LUT", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.degamma_lut_property = prop;
-
- prop = drm_property_create_range(dev,
- DRM_MODE_PROP_IMMUTABLE,
- "DEGAMMA_LUT_SIZE", 0, UINT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.degamma_lut_size_property = prop;
-
- prop = drm_property_create(dev,
- DRM_MODE_PROP_BLOB,
- "CTM", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.ctm_property = prop;
-
- prop = drm_property_create(dev,
- DRM_MODE_PROP_BLOB,
- "GAMMA_LUT", 0);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.gamma_lut_property = prop;
-
- prop = drm_property_create_range(dev,
- DRM_MODE_PROP_IMMUTABLE,
- "GAMMA_LUT_SIZE", 0, UINT_MAX);
- if (!prop)
- return -ENOMEM;
- dev->mode_config.gamma_lut_size_property = prop;
-
- return 0;
-}
-
-/**
- * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
- * @dev: DRM device
- *
- * Called by a driver the first time a DVI-I connector is made.
- */
-int drm_mode_create_dvi_i_properties(struct drm_device *dev)
-{
- struct drm_property *dvi_i_selector;
- struct drm_property *dvi_i_subconnector;
-
- if (dev->mode_config.dvi_i_select_subconnector_property)
- return 0;
-
- dvi_i_selector =
- drm_property_create_enum(dev, 0,
- "select subconnector",
- drm_dvi_i_select_enum_list,
- ARRAY_SIZE(drm_dvi_i_select_enum_list));
- dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
-
- dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
- "subconnector",
- drm_dvi_i_subconnector_enum_list,
- ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
- dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
-
- return 0;
-}
-EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
-
-/**
- * drm_create_tv_properties - create TV specific connector properties
- * @dev: DRM device
- * @num_modes: number of different TV formats (modes) supported
- * @modes: array of pointers to strings containing name of each format
- *
- * Called by a driver's TV initialization routine, this function creates
- * the TV specific connector properties for a given device. Caller is
- * responsible for allocating a list of format names and passing them to
- * this routine.
- */
-int drm_mode_create_tv_properties(struct drm_device *dev,
- unsigned int num_modes,
- const char * const modes[])
-{
- struct drm_property *tv_selector;
- struct drm_property *tv_subconnector;
- unsigned int i;
-
- if (dev->mode_config.tv_select_subconnector_property)
- return 0;
-
- /*
- * Basic connector properties
- */
- tv_selector = drm_property_create_enum(dev, 0,
- "select subconnector",
- drm_tv_select_enum_list,
- ARRAY_SIZE(drm_tv_select_enum_list));
- if (!tv_selector)
- goto nomem;
-
- dev->mode_config.tv_select_subconnector_property = tv_selector;
-
- tv_subconnector =
- drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
- "subconnector",
- drm_tv_subconnector_enum_list,
- ARRAY_SIZE(drm_tv_subconnector_enum_list));
- if (!tv_subconnector)
- goto nomem;
- dev->mode_config.tv_subconnector_property = tv_subconnector;
-
- /*
- * Other, TV specific properties: margins & TV modes.
- */
- dev->mode_config.tv_left_margin_property =
- drm_property_create_range(dev, 0, "left margin", 0, 100);
- if (!dev->mode_config.tv_left_margin_property)
- goto nomem;
-
- dev->mode_config.tv_right_margin_property =
- drm_property_create_range(dev, 0, "right margin", 0, 100);
- if (!dev->mode_config.tv_right_margin_property)
- goto nomem;
-
- dev->mode_config.tv_top_margin_property =
- drm_property_create_range(dev, 0, "top margin", 0, 100);
- if (!dev->mode_config.tv_top_margin_property)
- goto nomem;
-
- dev->mode_config.tv_bottom_margin_property =
- drm_property_create_range(dev, 0, "bottom margin", 0, 100);
- if (!dev->mode_config.tv_bottom_margin_property)
- goto nomem;
-
- dev->mode_config.tv_mode_property =
- drm_property_create(dev, DRM_MODE_PROP_ENUM,
- "mode", num_modes);
- if (!dev->mode_config.tv_mode_property)
- goto nomem;
-
- for (i = 0; i < num_modes; i++)
- drm_property_add_enum(dev->mode_config.tv_mode_property, i,
- i, modes[i]);
-
- dev->mode_config.tv_brightness_property =
- drm_property_create_range(dev, 0, "brightness", 0, 100);
- if (!dev->mode_config.tv_brightness_property)
- goto nomem;
-
- dev->mode_config.tv_contrast_property =
- drm_property_create_range(dev, 0, "contrast", 0, 100);
- if (!dev->mode_config.tv_contrast_property)
- goto nomem;
-
- dev->mode_config.tv_flicker_reduction_property =
- drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
- if (!dev->mode_config.tv_flicker_reduction_property)
- goto nomem;
-
- dev->mode_config.tv_overscan_property =
- drm_property_create_range(dev, 0, "overscan", 0, 100);
- if (!dev->mode_config.tv_overscan_property)
- goto nomem;
-
- dev->mode_config.tv_saturation_property =
- drm_property_create_range(dev, 0, "saturation", 0, 100);
- if (!dev->mode_config.tv_saturation_property)
- goto nomem;
-
- dev->mode_config.tv_hue_property =
- drm_property_create_range(dev, 0, "hue", 0, 100);
- if (!dev->mode_config.tv_hue_property)
- goto nomem;
-
- return 0;
-nomem:
- return -ENOMEM;
-}
-EXPORT_SYMBOL(drm_mode_create_tv_properties);
-
-/**
- * drm_mode_create_scaling_mode_property - create scaling mode property
- * @dev: DRM device
- *
- * Called by a driver the first time it's needed, must be attached to desired
- * connectors.
- */
-int drm_mode_create_scaling_mode_property(struct drm_device *dev)
-{
- struct drm_property *scaling_mode;
-
- if (dev->mode_config.scaling_mode_property)
- return 0;
-
- scaling_mode =
- drm_property_create_enum(dev, 0, "scaling mode",
- drm_scaling_mode_enum_list,
- ARRAY_SIZE(drm_scaling_mode_enum_list));
-
- dev->mode_config.scaling_mode_property = scaling_mode;
-
- return 0;
-}
-EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
-
-/**
- * drm_mode_create_aspect_ratio_property - create aspect ratio property
- * @dev: DRM device
- *
- * Called by a driver the first time it's needed, must be attached to desired
- * connectors.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_create_aspect_ratio_property(struct drm_device *dev)
-{
- if (dev->mode_config.aspect_ratio_property)
- return 0;
-
- dev->mode_config.aspect_ratio_property =
- drm_property_create_enum(dev, 0, "aspect ratio",
- drm_aspect_ratio_enum_list,
- ARRAY_SIZE(drm_aspect_ratio_enum_list));
-
- if (dev->mode_config.aspect_ratio_property == NULL)
- return -ENOMEM;
-
- return 0;
-}
-EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
-
-/**
- * drm_mode_create_dirty_property - create dirty property
- * @dev: DRM device
- *
- * Called by a driver the first time it's needed, must be attached to desired
- * connectors.
- */
-int drm_mode_create_dirty_info_property(struct drm_device *dev)
-{
- struct drm_property *dirty_info;
-
- if (dev->mode_config.dirty_info_property)
- return 0;
-
- dirty_info =
- drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
- "dirty",
- drm_dirty_info_enum_list,
- ARRAY_SIZE(drm_dirty_info_enum_list));
- dev->mode_config.dirty_info_property = dirty_info;
-
- return 0;
-}
-EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
-
-/**
- * drm_mode_create_suggested_offset_properties - create suggests offset properties
- * @dev: DRM device
- *
- * Create the the suggested x/y offset property for connectors.
- */
-int drm_mode_create_suggested_offset_properties(struct drm_device *dev)
-{
- if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property)
- return 0;
-
- dev->mode_config.suggested_x_property =
- drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff);
-
- dev->mode_config.suggested_y_property =
- drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff);
-
- if (dev->mode_config.suggested_x_property == NULL ||
- dev->mode_config.suggested_y_property == NULL)
- return -ENOMEM;
- return 0;
-}
-EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties);
-
-/**
- * drm_mode_getresources - get graphics configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Construct a set of configuration description structures and return
- * them to the user, including CRTC, connector and framebuffer configuration.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getresources(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_mode_card_res *card_res = data;
- struct list_head *lh;
- struct drm_framebuffer *fb;
- struct drm_connector *connector;
- struct drm_crtc *crtc;
- struct drm_encoder *encoder;
- int ret = 0;
- int connector_count = 0;
- int crtc_count = 0;
- int fb_count = 0;
- int encoder_count = 0;
- int copied = 0;
- uint32_t __user *fb_id;
- uint32_t __user *crtc_id;
- uint32_t __user *connector_id;
- uint32_t __user *encoder_id;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
-
- mutex_lock(&file_priv->fbs_lock);
- /*
- * For the non-control nodes we need to limit the list of resources
- * by IDs in the group list for this node
- */
- list_for_each(lh, &file_priv->fbs)
- fb_count++;
-
- /* handle this in 4 parts */
- /* FBs */
- if (card_res->count_fbs >= fb_count) {
- copied = 0;
- fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
- list_for_each_entry(fb, &file_priv->fbs, filp_head) {
- if (put_user(fb->base.id, fb_id + copied)) {
- mutex_unlock(&file_priv->fbs_lock);
- return -EFAULT;
- }
- copied++;
- }
- }
- card_res->count_fbs = fb_count;
- mutex_unlock(&file_priv->fbs_lock);
-
- /* mode_config.mutex protects the connector list against e.g. DP MST
- * connector hot-adding. CRTC/Plane lists are invariant. */
- mutex_lock(&dev->mode_config.mutex);
- drm_for_each_crtc(crtc, dev)
- crtc_count++;
-
- drm_for_each_connector(connector, dev)
- connector_count++;
-
- drm_for_each_encoder(encoder, dev)
- encoder_count++;
-
- card_res->max_height = dev->mode_config.max_height;
- card_res->min_height = dev->mode_config.min_height;
- card_res->max_width = dev->mode_config.max_width;
- card_res->min_width = dev->mode_config.min_width;
-
- /* CRTCs */
- if (card_res->count_crtcs >= crtc_count) {
- copied = 0;
- crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
- drm_for_each_crtc(crtc, dev) {
- if (put_user(crtc->base.id, crtc_id + copied)) {
- ret = -EFAULT;
- goto out;
- }
- copied++;
- }
- }
- card_res->count_crtcs = crtc_count;
-
- /* Encoders */
- if (card_res->count_encoders >= encoder_count) {
- copied = 0;
- encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
- drm_for_each_encoder(encoder, dev) {
- if (put_user(encoder->base.id, encoder_id +
- copied)) {
- ret = -EFAULT;
- goto out;
- }
- copied++;
- }
- }
- card_res->count_encoders = encoder_count;
-
- /* Connectors */
- if (card_res->count_connectors >= connector_count) {
- copied = 0;
- connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
- drm_for_each_connector(connector, dev) {
- if (put_user(connector->base.id,
- connector_id + copied)) {
- ret = -EFAULT;
- goto out;
- }
- copied++;
- }
- }
- card_res->count_connectors = connector_count;
-
-out:
- mutex_unlock(&dev->mode_config.mutex);
- return ret;
-}
-
-/**
- * drm_mode_getcrtc - get CRTC configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Construct a CRTC configuration structure to return to the user.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getcrtc(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_crtc *crtc_resp = data;
- struct drm_crtc *crtc;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- crtc = drm_crtc_find(dev, crtc_resp->crtc_id);
- if (!crtc)
- return -ENOENT;
-
- drm_modeset_lock_crtc(crtc, crtc->primary);
- crtc_resp->gamma_size = crtc->gamma_size;
- if (crtc->primary->fb)
- crtc_resp->fb_id = crtc->primary->fb->base.id;
- else
- crtc_resp->fb_id = 0;
-
- if (crtc->state) {
- crtc_resp->x = crtc->primary->state->src_x >> 16;
- crtc_resp->y = crtc->primary->state->src_y >> 16;
- if (crtc->state->enable) {
- drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);
- crtc_resp->mode_valid = 1;
-
- } else {
- crtc_resp->mode_valid = 0;
- }
- } else {
- crtc_resp->x = crtc->x;
- crtc_resp->y = crtc->y;
- if (crtc->enabled) {
- drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode);
- crtc_resp->mode_valid = 1;
-
- } else {
- crtc_resp->mode_valid = 0;
- }
- }
- drm_modeset_unlock_crtc(crtc);
-
- return 0;
-}
-
-static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode,
- const struct drm_file *file_priv)
-{
- /*
- * If user-space hasn't configured the driver to expose the stereo 3D
- * modes, don't expose them.
- */
- if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode))
- return false;
-
- return true;
-}
-
-static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector)
-{
- /* For atomic drivers only state objects are synchronously updated and
- * protected by modeset locks, so check those first. */
- if (connector->state)
- return connector->state->best_encoder;
- return connector->encoder;
-}
-
-/* helper for getconnector and getproperties ioctls */
-static int get_properties(struct drm_mode_object *obj, bool atomic,
- uint32_t __user *prop_ptr, uint64_t __user *prop_values,
- uint32_t *arg_count_props)
-{
- int props_count;
- int i, ret, copied;
-
- props_count = obj->properties->count;
- if (!atomic)
- props_count -= obj->properties->atomic_count;
-
- if ((*arg_count_props >= props_count) && props_count) {
- for (i = 0, copied = 0; copied < props_count; i++) {
- struct drm_property *prop = obj->properties->properties[i];
- uint64_t val;
-
- if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic)
- continue;
-
- ret = drm_object_property_get_value(obj, prop, &val);
- if (ret)
- return ret;
-
- if (put_user(prop->base.id, prop_ptr + copied))
- return -EFAULT;
-
- if (put_user(val, prop_values + copied))
- return -EFAULT;
-
- copied++;
- }
- }
- *arg_count_props = props_count;
-
- return 0;
-}
-
-/**
- * drm_mode_getconnector - get connector configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Construct a connector configuration structure to return to the user.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-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_connector *connector;
- struct drm_encoder *encoder;
- struct drm_display_mode *mode;
- int mode_count = 0;
- int encoders_count = 0;
- int ret = 0;
- int copied = 0;
- int i;
- struct drm_mode_modeinfo u_mode;
- struct drm_mode_modeinfo __user *mode_ptr;
- uint32_t __user *encoder_ptr;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
-
- mutex_lock(&dev->mode_config.mutex);
-
- connector = drm_connector_lookup(dev, out_resp->connector_id);
- if (!connector) {
- ret = -ENOENT;
- goto out_unlock;
- }
-
- for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++)
- if (connector->encoder_ids[i] != 0)
- encoders_count++;
-
- if (out_resp->count_modes == 0) {
- connector->funcs->fill_modes(connector,
- dev->mode_config.max_width,
- dev->mode_config.max_height);
- }
-
- /* delayed so we get modes regardless of pre-fill_modes state */
- list_for_each_entry(mode, &connector->modes, head)
- if (drm_mode_expose_to_userspace(mode, file_priv))
- mode_count++;
-
- out_resp->connector_id = connector->base.id;
- out_resp->connector_type = connector->connector_type;
- out_resp->connector_type_id = connector->connector_type_id;
- out_resp->mm_width = connector->display_info.width_mm;
- out_resp->mm_height = connector->display_info.height_mm;
- out_resp->subpixel = connector->display_info.subpixel_order;
- out_resp->connection = connector->status;
-
- drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
- encoder = drm_connector_get_encoder(connector);
- if (encoder)
- out_resp->encoder_id = encoder->base.id;
- else
- out_resp->encoder_id = 0;
-
- /*
- * This ioctl is called twice, once to determine how much space is
- * needed, and the 2nd time to fill it.
- */
- if ((out_resp->count_modes >= mode_count) && mode_count) {
- copied = 0;
- mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
- list_for_each_entry(mode, &connector->modes, head) {
- if (!drm_mode_expose_to_userspace(mode, file_priv))
- continue;
-
- drm_mode_convert_to_umode(&u_mode, mode);
- if (copy_to_user(mode_ptr + copied,
- &u_mode, sizeof(u_mode))) {
- ret = -EFAULT;
- goto out;
- }
- copied++;
- }
- }
- out_resp->count_modes = mode_count;
-
- ret = get_properties(&connector->base, file_priv->atomic,
- (uint32_t __user *)(unsigned long)(out_resp->props_ptr),
- (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr),
- &out_resp->count_props);
- if (ret)
- goto out;
-
- if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
- copied = 0;
- encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
- for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
- if (connector->encoder_ids[i] != 0) {
- if (put_user(connector->encoder_ids[i],
- encoder_ptr + copied)) {
- ret = -EFAULT;
- goto out;
- }
- copied++;
- }
- }
- }
- out_resp->count_encoders = encoders_count;
-
-out:
- drm_modeset_unlock(&dev->mode_config.connection_mutex);
-
- drm_connector_unreference(connector);
-out_unlock:
- mutex_unlock(&dev->mode_config.mutex);
-
- return ret;
-}
-
-static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder)
-{
- struct drm_connector *connector;
- struct drm_device *dev = encoder->dev;
- bool uses_atomic = false;
-
- /* For atomic drivers only state objects are synchronously updated and
- * protected by modeset locks, so check those first. */
- drm_for_each_connector(connector, dev) {
- if (!connector->state)
- continue;
-
- uses_atomic = true;
-
- if (connector->state->best_encoder != encoder)
- continue;
-
- return connector->state->crtc;
- }
-
- /* Don't return stale data (e.g. pending async disable). */
- if (uses_atomic)
- return NULL;
-
- return encoder->crtc;
-}
-
-/**
- * drm_mode_getencoder - get encoder configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Construct a encoder configuration structure to return to the user.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-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_encoder *encoder;
- struct drm_crtc *crtc;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- encoder = drm_encoder_find(dev, enc_resp->encoder_id);
- if (!encoder)
- return -ENOENT;
-
- drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
- crtc = drm_encoder_get_crtc(encoder);
- if (crtc)
- enc_resp->crtc_id = crtc->base.id;
- else
- enc_resp->crtc_id = 0;
- drm_modeset_unlock(&dev->mode_config.connection_mutex);
-
- enc_resp->encoder_type = encoder->encoder_type;
- enc_resp->encoder_id = encoder->base.id;
- enc_resp->possible_crtcs = encoder->possible_crtcs;
- enc_resp->possible_clones = encoder->possible_clones;
-
- return 0;
-}
-
-/**
- * drm_mode_getplane_res - enumerate all plane resources
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * Construct a list of plane ids to return to the user.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getplane_res(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_mode_get_plane_res *plane_resp = data;
- struct drm_mode_config *config;
- struct drm_plane *plane;
- uint32_t __user *plane_ptr;
- int copied = 0;
- unsigned num_planes;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- config = &dev->mode_config;
-
- if (file_priv->universal_planes)
- num_planes = config->num_total_plane;
- else
- num_planes = config->num_overlay_plane;
-
- /*
- * This ioctl is called twice, once to determine how much space is
- * needed, and the 2nd time to fill it.
- */
- if (num_planes &&
- (plane_resp->count_planes >= num_planes)) {
- plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
-
- /* Plane lists are invariant, no locking needed. */
- drm_for_each_plane(plane, dev) {
- /*
- * Unless userspace set the 'universal planes'
- * capability bit, only advertise overlays.
- */
- if (plane->type != DRM_PLANE_TYPE_OVERLAY &&
- !file_priv->universal_planes)
- continue;
-
- if (put_user(plane->base.id, plane_ptr + copied))
- return -EFAULT;
- copied++;
- }
- }
- plane_resp->count_planes = num_planes;
-
- return 0;
-}
-
-/**
- * drm_mode_getplane - get plane configuration
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * Construct a plane configuration structure to return to the user.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-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_plane *plane;
- uint32_t __user *format_ptr;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- plane = drm_plane_find(dev, plane_resp->plane_id);
- if (!plane)
- return -ENOENT;
-
- drm_modeset_lock(&plane->mutex, NULL);
- if (plane->crtc)
- plane_resp->crtc_id = plane->crtc->base.id;
- else
- plane_resp->crtc_id = 0;
-
- if (plane->fb)
- plane_resp->fb_id = plane->fb->base.id;
- else
- plane_resp->fb_id = 0;
- drm_modeset_unlock(&plane->mutex);
-
- plane_resp->plane_id = plane->base.id;
- plane_resp->possible_crtcs = plane->possible_crtcs;
- plane_resp->gamma_size = 0;
-
- /*
- * This ioctl is called twice, once to determine how much space is
- * needed, and the 2nd time to fill it.
- */
- if (plane->format_count &&
- (plane_resp->count_format_types >= plane->format_count)) {
- format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
- if (copy_to_user(format_ptr,
- plane->format_types,
- sizeof(uint32_t) * plane->format_count)) {
- return -EFAULT;
- }
- }
- plane_resp->count_format_types = plane->format_count;
-
- return 0;
-}
-
-/**
- * drm_plane_check_pixel_format - Check if the plane supports the pixel format
- * @plane: plane to check for format support
- * @format: the pixel format
- *
- * Returns:
- * Zero of @plane has @format in its list of supported pixel formats, -EINVAL
- * otherwise.
- */
-int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format)
-{
- unsigned int i;
-
- for (i = 0; i < plane->format_count; i++) {
- if (format == plane->format_types[i])
- return 0;
- }
-
- return -EINVAL;
-}
-
-static int check_src_coords(uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h,
- const struct drm_framebuffer *fb)
-{
- unsigned int fb_width, fb_height;
-
- fb_width = fb->width << 16;
- fb_height = fb->height << 16;
-
- /* Make sure source coordinates are inside the fb. */
- if (src_w > fb_width ||
- src_x > fb_width - src_w ||
- src_h > fb_height ||
- src_y > fb_height - src_h) {
- DRM_DEBUG_KMS("Invalid source coordinates "
- "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
- src_w >> 16, ((src_w & 0xffff) * 15625) >> 10,
- src_h >> 16, ((src_h & 0xffff) * 15625) >> 10,
- src_x >> 16, ((src_x & 0xffff) * 15625) >> 10,
- src_y >> 16, ((src_y & 0xffff) * 15625) >> 10);
- return -ENOSPC;
- }
-
- return 0;
-}
-
-/*
- * setplane_internal - setplane handler for internal callers
- *
- * Note that we assume an extra reference has already been taken on fb. If the
- * update fails, this reference will be dropped before return; if it succeeds,
- * the previous framebuffer (if any) will be unreferenced instead.
- *
- * src_{x,y,w,h} are provided in 16.16 fixed point format
- */
-static int __setplane_internal(struct drm_plane *plane,
- struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- int32_t crtc_x, int32_t crtc_y,
- uint32_t crtc_w, uint32_t crtc_h,
- /* src_{x,y,w,h} values are 16.16 fixed point */
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h)
-{
- int ret = 0;
-
- /* No fb means shut it down */
- if (!fb) {
- plane->old_fb = plane->fb;
- ret = plane->funcs->disable_plane(plane);
- if (!ret) {
- plane->crtc = NULL;
- plane->fb = NULL;
- } else {
- plane->old_fb = NULL;
- }
- goto out;
- }
-
- /* Check whether this plane is usable on this CRTC */
- if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) {
- DRM_DEBUG_KMS("Invalid crtc for plane\n");
- ret = -EINVAL;
- goto out;
- }
-
- /* Check whether this plane supports the fb pixel format. */
- ret = drm_plane_check_pixel_format(plane, fb->pixel_format);
- if (ret) {
- DRM_DEBUG_KMS("Invalid pixel format %s\n",
- drm_get_format_name(fb->pixel_format));
- goto out;
- }
-
- /* Give drivers some help against integer overflows */
- if (crtc_w > INT_MAX ||
- crtc_x > INT_MAX - (int32_t) crtc_w ||
- crtc_h > INT_MAX ||
- crtc_y > INT_MAX - (int32_t) crtc_h) {
- DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
- crtc_w, crtc_h, crtc_x, crtc_y);
- ret = -ERANGE;
- goto out;
- }
-
- ret = check_src_coords(src_x, src_y, src_w, src_h, fb);
- if (ret)
- goto out;
-
- plane->old_fb = plane->fb;
- ret = plane->funcs->update_plane(plane, crtc, fb,
- crtc_x, crtc_y, crtc_w, crtc_h,
- src_x, src_y, src_w, src_h);
- if (!ret) {
- plane->crtc = crtc;
- plane->fb = fb;
- fb = NULL;
- } else {
- plane->old_fb = NULL;
- }
-
-out:
- if (fb)
- drm_framebuffer_unreference(fb);
- if (plane->old_fb)
- drm_framebuffer_unreference(plane->old_fb);
- plane->old_fb = NULL;
-
- return ret;
-}
-
-static int setplane_internal(struct drm_plane *plane,
- struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- int32_t crtc_x, int32_t crtc_y,
- uint32_t crtc_w, uint32_t crtc_h,
- /* src_{x,y,w,h} values are 16.16 fixed point */
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h)
-{
- int ret;
-
- drm_modeset_lock_all(plane->dev);
- ret = __setplane_internal(plane, crtc, fb,
- crtc_x, crtc_y, crtc_w, crtc_h,
- src_x, src_y, src_w, src_h);
- drm_modeset_unlock_all(plane->dev);
-
- return ret;
-}
-
-/**
- * drm_mode_setplane - configure a plane's configuration
- * @dev: DRM device
- * @data: ioctl data*
- * @file_priv: DRM file info
- *
- * Set plane configuration, including placement, fb, scaling, and other factors.
- * Or pass a NULL fb to disable (planes may be disabled without providing a
- * valid crtc).
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-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_plane *plane;
- struct drm_crtc *crtc = NULL;
- struct drm_framebuffer *fb = NULL;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- /*
- * First, find the plane, crtc, and fb objects. If not available,
- * we don't bother to call the driver.
- */
- 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;
- }
-
- if (plane_req->fb_id) {
- fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
- if (!fb) {
- DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
- plane_req->fb_id);
- return -ENOENT;
- }
-
- crtc = drm_crtc_find(dev, plane_req->crtc_id);
- if (!crtc) {
- DRM_DEBUG_KMS("Unknown crtc ID %d\n",
- plane_req->crtc_id);
- return -ENOENT;
- }
- }
-
- /*
- * setplane_internal will take care of deref'ing either the old or new
- * framebuffer depending on success.
- */
- return setplane_internal(plane, crtc, fb,
- plane_req->crtc_x, plane_req->crtc_y,
- plane_req->crtc_w, plane_req->crtc_h,
- plane_req->src_x, plane_req->src_y,
- plane_req->src_w, plane_req->src_h);
-}
-
-/**
- * drm_mode_set_config_internal - helper to call ->set_config
- * @set: modeset config to set
- *
- * This is a little helper to wrap internal calls to the ->set_config driver
- * interface. The only thing it adds is correct refcounting dance.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_set_config_internal(struct drm_mode_set *set)
-{
- struct drm_crtc *crtc = set->crtc;
- struct drm_framebuffer *fb;
- struct drm_crtc *tmp;
- int ret;
-
- /*
- * NOTE: ->set_config can also disable other crtcs (if we steal all
- * connectors from it), hence we need to refcount the fbs across all
- * crtcs. Atomic modeset will have saner semantics ...
- */
- drm_for_each_crtc(tmp, crtc->dev)
- tmp->primary->old_fb = tmp->primary->fb;
-
- fb = set->fb;
-
- ret = crtc->funcs->set_config(set);
- if (ret == 0) {
- crtc->primary->crtc = crtc;
- crtc->primary->fb = fb;
- }
-
- drm_for_each_crtc(tmp, crtc->dev) {
- if (tmp->primary->fb)
- drm_framebuffer_reference(tmp->primary->fb);
- if (tmp->primary->old_fb)
- drm_framebuffer_unreference(tmp->primary->old_fb);
- tmp->primary->old_fb = NULL;
- }
-
- return ret;
-}
-EXPORT_SYMBOL(drm_mode_set_config_internal);
-
-/**
- * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode
- * @mode: mode to query
- * @hdisplay: hdisplay value to fill in
- * @vdisplay: vdisplay value to fill in
- *
- * The vdisplay value will be doubled if the specified mode is a stereo mode of
- * the appropriate layout.
- */
-void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
- int *hdisplay, int *vdisplay)
-{
- struct drm_display_mode adjusted;
-
- drm_mode_copy(&adjusted, mode);
- drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY);
- *hdisplay = adjusted.crtc_hdisplay;
- *vdisplay = adjusted.crtc_vdisplay;
-}
-EXPORT_SYMBOL(drm_crtc_get_hv_timing);
-
-/**
- * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the
- * CRTC viewport
- * @crtc: CRTC that framebuffer will be displayed on
- * @x: x panning
- * @y: y panning
- * @mode: mode that framebuffer will be displayed under
- * @fb: framebuffer to check size of
- */
-int drm_crtc_check_viewport(const struct drm_crtc *crtc,
- int x, int y,
- const struct drm_display_mode *mode,
- const struct drm_framebuffer *fb)
-
-{
- int hdisplay, vdisplay;
-
- drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
-
- if (crtc->state &&
- crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) |
- BIT(DRM_ROTATE_270)))
- swap(hdisplay, vdisplay);
-
- return check_src_coords(x << 16, y << 16,
- hdisplay << 16, vdisplay << 16, fb);
-}
-EXPORT_SYMBOL(drm_crtc_check_viewport);
-
-/**
- * drm_mode_setcrtc - set CRTC configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Build a new CRTC configuration based on user request.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_setcrtc(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_mode_config *config = &dev->mode_config;
- struct drm_mode_crtc *crtc_req = data;
- struct drm_crtc *crtc;
- struct drm_connector **connector_set = NULL, *connector;
- struct drm_framebuffer *fb = NULL;
- struct drm_display_mode *mode = NULL;
- struct drm_mode_set set;
- uint32_t __user *set_connectors_ptr;
- int ret;
- int i;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- /*
- * Universal plane src offsets are only 16.16, prevent havoc for
- * drivers using universal plane code internally.
- */
- if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000)
- return -ERANGE;
-
- drm_modeset_lock_all(dev);
- 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;
- }
- DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
-
- if (crtc_req->mode_valid) {
- /* If we have a mode we need a framebuffer. */
- /* If we pass -1, set the mode with the currently bound fb */
- if (crtc_req->fb_id == -1) {
- if (!crtc->primary->fb) {
- DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
- ret = -EINVAL;
- goto out;
- }
- fb = crtc->primary->fb;
- /* Make refcounting symmetric with the lookup path. */
- drm_framebuffer_reference(fb);
- } else {
- fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
- if (!fb) {
- DRM_DEBUG_KMS("Unknown FB ID%d\n",
- crtc_req->fb_id);
- ret = -ENOENT;
- goto out;
- }
- }
-
- mode = drm_mode_create(dev);
- if (!mode) {
- ret = -ENOMEM;
- goto out;
- }
-
- ret = drm_mode_convert_umode(mode, &crtc_req->mode);
- if (ret) {
- DRM_DEBUG_KMS("Invalid mode\n");
- goto out;
- }
-
- /*
- * Check whether the primary plane supports the fb pixel format.
- * Drivers not implementing the universal planes API use a
- * default formats list provided by the DRM core which doesn't
- * match real hardware capabilities. Skip the check in that
- * case.
- */
- if (!crtc->primary->format_default) {
- ret = drm_plane_check_pixel_format(crtc->primary,
- fb->pixel_format);
- if (ret) {
- DRM_DEBUG_KMS("Invalid pixel format %s\n",
- drm_get_format_name(fb->pixel_format));
- goto out;
- }
- }
-
- ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
- mode, fb);
- if (ret)
- goto out;
-
- }
-
- if (crtc_req->count_connectors == 0 && mode) {
- DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
- ret = -EINVAL;
- goto out;
- }
-
- if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
- DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
- crtc_req->count_connectors);
- ret = -EINVAL;
- goto out;
- }
-
- if (crtc_req->count_connectors > 0) {
- u32 out_id;
-
- /* Avoid unbounded kernel memory allocation */
- if (crtc_req->count_connectors > config->num_connector) {
- ret = -EINVAL;
- goto out;
- }
-
- connector_set = kmalloc_array(crtc_req->count_connectors,
- sizeof(struct drm_connector *),
- GFP_KERNEL);
- if (!connector_set) {
- ret = -ENOMEM;
- goto out;
- }
-
- for (i = 0; i < crtc_req->count_connectors; i++) {
- connector_set[i] = NULL;
- set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
- if (get_user(out_id, &set_connectors_ptr[i])) {
- ret = -EFAULT;
- goto out;
- }
-
- connector = drm_connector_lookup(dev, out_id);
- if (!connector) {
- DRM_DEBUG_KMS("Connector id %d unknown\n",
- out_id);
- ret = -ENOENT;
- goto out;
- }
- DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
- connector->base.id,
- connector->name);
-
- connector_set[i] = connector;
- }
- }
-
- set.crtc = crtc;
- set.x = crtc_req->x;
- set.y = crtc_req->y;
- set.mode = mode;
- set.connectors = connector_set;
- set.num_connectors = crtc_req->count_connectors;
- set.fb = fb;
- ret = drm_mode_set_config_internal(&set);
-
-out:
- if (fb)
- drm_framebuffer_unreference(fb);
-
- if (connector_set) {
- for (i = 0; i < crtc_req->count_connectors; i++) {
- if (connector_set[i])
- drm_connector_unreference(connector_set[i]);
- }
- }
- kfree(connector_set);
- drm_mode_destroy(dev, mode);
- drm_modeset_unlock_all(dev);
- return ret;
-}
-
-/**
- * drm_mode_cursor_universal - translate legacy cursor ioctl call into a
- * universal plane handler call
- * @crtc: crtc to update cursor for
- * @req: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Legacy cursor ioctl's work directly with driver buffer handles. To
- * translate legacy ioctl calls into universal plane handler calls, we need to
- * wrap the native buffer handle in a drm_framebuffer.
- *
- * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB
- * buffer with a pitch of 4*width; the universal plane interface should be used
- * directly in cases where the hardware can support other buffer settings and
- * userspace wants to make use of these capabilities.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-static int drm_mode_cursor_universal(struct drm_crtc *crtc,
- struct drm_mode_cursor2 *req,
- struct drm_file *file_priv)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_framebuffer *fb = NULL;
- struct drm_mode_fb_cmd2 fbreq = {
- .width = req->width,
- .height = req->height,
- .pixel_format = DRM_FORMAT_ARGB8888,
- .pitches = { req->width * 4 },
- .handles = { req->handle },
- };
- int32_t crtc_x, crtc_y;
- uint32_t crtc_w = 0, crtc_h = 0;
- uint32_t src_w = 0, src_h = 0;
- int ret = 0;
-
- BUG_ON(!crtc->cursor);
- WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL);
-
- /*
- * Obtain fb we'll be using (either new or existing) and take an extra
- * reference to it if fb != null. setplane will take care of dropping
- * the reference if the plane update fails.
- */
- if (req->flags & DRM_MODE_CURSOR_BO) {
- if (req->handle) {
- fb = internal_framebuffer_create(dev, &fbreq, file_priv);
- if (IS_ERR(fb)) {
- DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
- return PTR_ERR(fb);
- }
- fb->hot_x = req->hot_x;
- fb->hot_y = req->hot_y;
- } else {
- fb = NULL;
- }
- } else {
- fb = crtc->cursor->fb;
- if (fb)
- drm_framebuffer_reference(fb);
- }
-
- if (req->flags & DRM_MODE_CURSOR_MOVE) {
- crtc_x = req->x;
- crtc_y = req->y;
- } else {
- crtc_x = crtc->cursor_x;
- crtc_y = crtc->cursor_y;
- }
-
- if (fb) {
- crtc_w = fb->width;
- crtc_h = fb->height;
- src_w = fb->width << 16;
- src_h = fb->height << 16;
- }
-
- /*
- * setplane_internal will take care of deref'ing either the old or new
- * framebuffer depending on success.
- */
- ret = __setplane_internal(crtc->cursor, crtc, fb,
- crtc_x, crtc_y, crtc_w, crtc_h,
- 0, 0, src_w, src_h);
-
- /* Update successful; save new cursor position, if necessary */
- if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) {
- crtc->cursor_x = req->x;
- crtc->cursor_y = req->y;
- }
-
- return ret;
-}
-
-static int drm_mode_cursor_common(struct drm_device *dev,
- struct drm_mode_cursor2 *req,
- struct drm_file *file_priv)
-{
- struct drm_crtc *crtc;
- int ret = 0;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
- return -EINVAL;
-
- crtc = drm_crtc_find(dev, req->crtc_id);
- if (!crtc) {
- DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
- return -ENOENT;
- }
-
- /*
- * If this crtc has a universal cursor plane, call that plane's update
- * handler rather than using legacy cursor handlers.
- */
- drm_modeset_lock_crtc(crtc, crtc->cursor);
- if (crtc->cursor) {
- ret = drm_mode_cursor_universal(crtc, req, file_priv);
- goto out;
- }
-
- if (req->flags & DRM_MODE_CURSOR_BO) {
- if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
- ret = -ENXIO;
- goto out;
- }
- /* Turns off the cursor if handle is 0 */
- if (crtc->funcs->cursor_set2)
- ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
- req->width, req->height, req->hot_x, req->hot_y);
- else
- ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
- req->width, req->height);
- }
-
- if (req->flags & DRM_MODE_CURSOR_MOVE) {
- if (crtc->funcs->cursor_move) {
- ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
- } else {
- ret = -EFAULT;
- goto out;
- }
- }
-out:
- drm_modeset_unlock_crtc(crtc);
-
- return ret;
-
-}
-
-
-/**
- * drm_mode_cursor_ioctl - set CRTC's cursor configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Set the cursor configuration based on user request.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_cursor_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_cursor *req = data;
- struct drm_mode_cursor2 new_req;
-
- memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
- new_req.hot_x = new_req.hot_y = 0;
-
- return drm_mode_cursor_common(dev, &new_req, file_priv);
-}
-
-/**
- * drm_mode_cursor2_ioctl - set CRTC's cursor configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Set the cursor configuration based on user request. This implements the 2nd
- * version of the cursor ioctl, which allows userspace to additionally specify
- * the hotspot of the pointer.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_cursor2_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_cursor2 *req = data;
-
- return drm_mode_cursor_common(dev, req, file_priv);
-}
-
-/**
- * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
- * @bpp: bits per pixels
- * @depth: bit depth per pixel
- *
- * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
- * Useful in fbdev emulation code, since that deals in those values.
- */
-uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
-{
- uint32_t fmt;
-
- switch (bpp) {
- case 8:
- fmt = DRM_FORMAT_C8;
- break;
- case 16:
- if (depth == 15)
- fmt = DRM_FORMAT_XRGB1555;
- else
- fmt = DRM_FORMAT_RGB565;
- break;
- case 24:
- fmt = DRM_FORMAT_RGB888;
- break;
- case 32:
- if (depth == 24)
- fmt = DRM_FORMAT_XRGB8888;
- else if (depth == 30)
- fmt = DRM_FORMAT_XRGB2101010;
- else
- fmt = DRM_FORMAT_ARGB8888;
- break;
- default:
- DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
- fmt = DRM_FORMAT_XRGB8888;
- break;
- }
-
- return fmt;
-}
-EXPORT_SYMBOL(drm_mode_legacy_fb_format);
-
-/**
- * drm_mode_addfb - add an FB to the graphics configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Add a new FB to the specified CRTC, given a user request. This is the
- * original addfb ioctl which only supported RGB formats.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_addfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_fb_cmd *or = data;
- struct drm_mode_fb_cmd2 r = {};
- int ret;
-
- /* convert to new format and call new ioctl */
- r.fb_id = or->fb_id;
- r.width = or->width;
- r.height = or->height;
- r.pitches[0] = or->pitch;
- r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
- r.handles[0] = or->handle;
-
- ret = drm_mode_addfb2(dev, &r, file_priv);
- if (ret)
- return ret;
-
- or->fb_id = r.fb_id;
-
- return 0;
-}
-
-static int format_check(const struct drm_mode_fb_cmd2 *r)
-{
- uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
-
- switch (format) {
- case DRM_FORMAT_C8:
- case DRM_FORMAT_RGB332:
- case DRM_FORMAT_BGR233:
- case DRM_FORMAT_XRGB4444:
- case DRM_FORMAT_XBGR4444:
- case DRM_FORMAT_RGBX4444:
- case DRM_FORMAT_BGRX4444:
- case DRM_FORMAT_ARGB4444:
- case DRM_FORMAT_ABGR4444:
- case DRM_FORMAT_RGBA4444:
- case DRM_FORMAT_BGRA4444:
- case DRM_FORMAT_XRGB1555:
- case DRM_FORMAT_XBGR1555:
- case DRM_FORMAT_RGBX5551:
- case DRM_FORMAT_BGRX5551:
- case DRM_FORMAT_ARGB1555:
- case DRM_FORMAT_ABGR1555:
- case DRM_FORMAT_RGBA5551:
- case DRM_FORMAT_BGRA5551:
- case DRM_FORMAT_RGB565:
- case DRM_FORMAT_BGR565:
- case DRM_FORMAT_RGB888:
- case DRM_FORMAT_BGR888:
- case DRM_FORMAT_XRGB8888:
- case DRM_FORMAT_XBGR8888:
- case DRM_FORMAT_RGBX8888:
- case DRM_FORMAT_BGRX8888:
- case DRM_FORMAT_ARGB8888:
- case DRM_FORMAT_ABGR8888:
- case DRM_FORMAT_RGBA8888:
- case DRM_FORMAT_BGRA8888:
- case DRM_FORMAT_XRGB2101010:
- case DRM_FORMAT_XBGR2101010:
- case DRM_FORMAT_RGBX1010102:
- case DRM_FORMAT_BGRX1010102:
- case DRM_FORMAT_ARGB2101010:
- case DRM_FORMAT_ABGR2101010:
- case DRM_FORMAT_RGBA1010102:
- case DRM_FORMAT_BGRA1010102:
- case DRM_FORMAT_YUYV:
- case DRM_FORMAT_YVYU:
- case DRM_FORMAT_UYVY:
- case DRM_FORMAT_VYUY:
- case DRM_FORMAT_AYUV:
- case DRM_FORMAT_NV12:
- case DRM_FORMAT_NV21:
- case DRM_FORMAT_NV16:
- case DRM_FORMAT_NV61:
- case DRM_FORMAT_NV24:
- case DRM_FORMAT_NV42:
- case DRM_FORMAT_YUV410:
- case DRM_FORMAT_YVU410:
- case DRM_FORMAT_YUV411:
- case DRM_FORMAT_YVU411:
- case DRM_FORMAT_YUV420:
- case DRM_FORMAT_YVU420:
- case DRM_FORMAT_YUV422:
- case DRM_FORMAT_YVU422:
- case DRM_FORMAT_YUV444:
- case DRM_FORMAT_YVU444:
- return 0;
- default:
- DRM_DEBUG_KMS("invalid pixel format %s\n",
- drm_get_format_name(r->pixel_format));
- return -EINVAL;
- }
-}
-
-static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
-{
- int ret, hsub, vsub, num_planes, i;
-
- ret = format_check(r);
- if (ret) {
- DRM_DEBUG_KMS("bad framebuffer format %s\n",
- drm_get_format_name(r->pixel_format));
- return ret;
- }
-
- hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
- vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
- num_planes = drm_format_num_planes(r->pixel_format);
-
- if (r->width == 0 || r->width % hsub) {
- DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width);
- return -EINVAL;
- }
-
- if (r->height == 0 || r->height % vsub) {
- DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
- return -EINVAL;
- }
-
- for (i = 0; i < num_planes; i++) {
- unsigned int width = r->width / (i != 0 ? hsub : 1);
- unsigned int height = r->height / (i != 0 ? vsub : 1);
- unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
-
- if (!r->handles[i]) {
- DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
- return -EINVAL;
- }
-
- if ((uint64_t) width * cpp > UINT_MAX)
- return -ERANGE;
-
- if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
- return -ERANGE;
-
- if (r->pitches[i] < width * cpp) {
- DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
- return -EINVAL;
- }
-
- if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) {
- DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n",
- r->modifier[i], i);
- return -EINVAL;
- }
-
- /* modifier specific checks: */
- switch (r->modifier[i]) {
- case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE:
- /* NOTE: the pitch restriction may be lifted later if it turns
- * out that no hw has this restriction:
- */
- if (r->pixel_format != DRM_FORMAT_NV12 ||
- width % 128 || height % 32 ||
- r->pitches[i] % 128) {
- DRM_DEBUG_KMS("bad modifier data for plane %d\n", i);
- return -EINVAL;
- }
- break;
-
- default:
- break;
- }
- }
-
- for (i = num_planes; i < 4; i++) {
- if (r->modifier[i]) {
- DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i);
- return -EINVAL;
- }
-
- /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */
- if (!(r->flags & DRM_MODE_FB_MODIFIERS))
- continue;
-
- if (r->handles[i]) {
- DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i);
- return -EINVAL;
- }
-
- if (r->pitches[i]) {
- DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i);
- return -EINVAL;
- }
-
- if (r->offsets[i]) {
- DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i);
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
-static struct drm_framebuffer *
-internal_framebuffer_create(struct drm_device *dev,
- const struct drm_mode_fb_cmd2 *r,
- struct drm_file *file_priv)
-{
- struct drm_mode_config *config = &dev->mode_config;
- struct drm_framebuffer *fb;
- int ret;
-
- if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) {
- DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
- return ERR_PTR(-EINVAL);
- }
-
- if ((config->min_width > r->width) || (r->width > config->max_width)) {
- DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
- r->width, config->min_width, config->max_width);
- return ERR_PTR(-EINVAL);
- }
- if ((config->min_height > r->height) || (r->height > config->max_height)) {
- DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
- r->height, config->min_height, config->max_height);
- return ERR_PTR(-EINVAL);
- }
-
- if (r->flags & DRM_MODE_FB_MODIFIERS &&
- !dev->mode_config.allow_fb_modifiers) {
- DRM_DEBUG_KMS("driver does not support fb modifiers\n");
- return ERR_PTR(-EINVAL);
- }
-
- ret = framebuffer_check(r);
- if (ret)
- return ERR_PTR(ret);
-
- fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
- if (IS_ERR(fb)) {
- DRM_DEBUG_KMS("could not create framebuffer\n");
- return fb;
- }
-
- return fb;
-}
-
-/**
- * drm_mode_addfb2 - add an FB to the graphics configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Add a new FB to the specified CRTC, given a user request with format. This is
- * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers
- * and uses fourcc codes as pixel format specifiers.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_addfb2(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_fb_cmd2 *r = data;
- struct drm_framebuffer *fb;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- fb = internal_framebuffer_create(dev, r, file_priv);
- if (IS_ERR(fb))
- return PTR_ERR(fb);
-
- DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
- r->fb_id = fb->base.id;
-
- /* Transfer ownership to the filp for reaping on close */
- mutex_lock(&file_priv->fbs_lock);
- list_add(&fb->filp_head, &file_priv->fbs);
- mutex_unlock(&file_priv->fbs_lock);
-
- return 0;
-}
-
-struct drm_mode_rmfb_work {
- struct work_struct work;
- struct list_head fbs;
-};
-
-static void drm_mode_rmfb_work_fn(struct work_struct *w)
-{
- struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work);
-
- while (!list_empty(&arg->fbs)) {
- struct drm_framebuffer *fb =
- list_first_entry(&arg->fbs, typeof(*fb), filp_head);
-
- list_del_init(&fb->filp_head);
- drm_framebuffer_remove(fb);
- }
-}
-
-/**
- * drm_mode_rmfb - remove an FB from the configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Remove the FB specified by the user.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_rmfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_framebuffer *fb = NULL;
- struct drm_framebuffer *fbl = NULL;
- uint32_t *id = data;
- int found = 0;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- fb = drm_framebuffer_lookup(dev, *id);
- if (!fb)
- return -ENOENT;
-
- mutex_lock(&file_priv->fbs_lock);
- list_for_each_entry(fbl, &file_priv->fbs, filp_head)
- if (fb == fbl)
- found = 1;
- if (!found) {
- mutex_unlock(&file_priv->fbs_lock);
- goto fail_unref;
- }
-
- list_del_init(&fb->filp_head);
- mutex_unlock(&file_priv->fbs_lock);
-
- /* drop the reference we picked up in framebuffer lookup */
- drm_framebuffer_unreference(fb);
-
- /*
- * we now own the reference that was stored in the fbs list
- *
- * drm_framebuffer_remove may fail with -EINTR on pending signals,
- * so run this in a separate stack as there's no way to correctly
- * handle this after the fb is already removed from the lookup table.
- */
- if (drm_framebuffer_read_refcount(fb) > 1) {
- struct drm_mode_rmfb_work arg;
-
- INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn);
- INIT_LIST_HEAD(&arg.fbs);
- list_add_tail(&fb->filp_head, &arg.fbs);
-
- schedule_work(&arg.work);
- flush_work(&arg.work);
- destroy_work_on_stack(&arg.work);
- } else
- drm_framebuffer_unreference(fb);
-
- return 0;
-
-fail_unref:
- drm_framebuffer_unreference(fb);
- return -ENOENT;
-}
-
-/**
- * drm_mode_getfb - get FB info
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Lookup the FB given its ID and return info about it.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_fb_cmd *r = data;
- struct drm_framebuffer *fb;
- int ret;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- fb = drm_framebuffer_lookup(dev, r->fb_id);
- if (!fb)
- return -ENOENT;
-
- r->height = fb->height;
- r->width = fb->width;
- r->depth = fb->depth;
- r->bpp = fb->bits_per_pixel;
- r->pitch = fb->pitches[0];
- if (fb->funcs->create_handle) {
- if (drm_is_current_master(file_priv) || capable(CAP_SYS_ADMIN) ||
- drm_is_control_client(file_priv)) {
- ret = fb->funcs->create_handle(fb, file_priv,
- &r->handle);
- } else {
- /* GET_FB() is an unprivileged ioctl so we must not
- * return a buffer-handle to non-master processes! For
- * backwards-compatibility reasons, we cannot make
- * GET_FB() privileged, so just return an invalid handle
- * for non-masters. */
- r->handle = 0;
- ret = 0;
- }
- } else {
- ret = -ENODEV;
- }
-
- drm_framebuffer_unreference(fb);
-
- return ret;
-}
-
-/**
- * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Lookup the FB and flush out the damaged area supplied by userspace as a clip
- * rectangle list. Generic userspace which does frontbuffer rendering must call
- * this ioctl to flush out the changes on manual-update display outputs, e.g.
- * usb display-link, mipi manual update panels or edp panel self refresh modes.
- *
- * Modesetting drivers which always update the frontbuffer do not need to
- * implement the corresponding ->dirty framebuffer callback.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_clip_rect __user *clips_ptr;
- struct drm_clip_rect *clips = NULL;
- struct drm_mode_fb_dirty_cmd *r = data;
- struct drm_framebuffer *fb;
- unsigned flags;
- int num_clips;
- int ret;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- fb = drm_framebuffer_lookup(dev, r->fb_id);
- if (!fb)
- return -ENOENT;
-
- num_clips = r->num_clips;
- clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
-
- if (!num_clips != !clips_ptr) {
- ret = -EINVAL;
- goto out_err1;
- }
-
- flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
-
- /* If userspace annotates copy, clips must come in pairs */
- if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
- ret = -EINVAL;
- goto out_err1;
- }
-
- if (num_clips && clips_ptr) {
- if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
- ret = -EINVAL;
- goto out_err1;
- }
- clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
- if (!clips) {
- ret = -ENOMEM;
- goto out_err1;
- }
-
- ret = copy_from_user(clips, clips_ptr,
- num_clips * sizeof(*clips));
- if (ret) {
- ret = -EFAULT;
- goto out_err2;
- }
- }
-
- if (fb->funcs->dirty) {
- ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
- clips, num_clips);
- } else {
- ret = -ENOSYS;
- }
-
-out_err2:
- kfree(clips);
-out_err1:
- drm_framebuffer_unreference(fb);
-
- return ret;
-}
-
-/**
- * drm_fb_release - remove and free the FBs on this file
- * @priv: drm file for the ioctl
- *
- * Destroy all the FBs associated with @filp.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-void drm_fb_release(struct drm_file *priv)
-{
- struct drm_framebuffer *fb, *tfb;
- struct drm_mode_rmfb_work arg;
-
- INIT_LIST_HEAD(&arg.fbs);
-
- /*
- * When the file gets released that means no one else can access the fb
- * list any more, so no need to grab fpriv->fbs_lock. And we need to
- * avoid upsetting lockdep since the universal cursor code adds a
- * framebuffer while holding mutex locks.
- *
- * Note that a real deadlock between fpriv->fbs_lock and the modeset
- * locks is impossible here since no one else but this function can get
- * at it any more.
- */
- list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
- if (drm_framebuffer_read_refcount(fb) > 1) {
- list_move_tail(&fb->filp_head, &arg.fbs);
- } else {
- list_del_init(&fb->filp_head);
-
- /* This drops the fpriv->fbs reference. */
- drm_framebuffer_unreference(fb);
- }
- }
-
- if (!list_empty(&arg.fbs)) {
- INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn);
-
- schedule_work(&arg.work);
- flush_work(&arg.work);
- destroy_work_on_stack(&arg.work);
- }
-}
-
-static bool drm_property_type_valid(struct drm_property *property)
-{
- if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
- return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
- return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
-}
-
-/**
- * drm_property_create - create a new property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- * @num_values: number of pre-defined values
- *
- * This creates a new generic drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * Note that the DRM core keeps a per-device list of properties and that, if
- * drm_mode_config_cleanup() is called, it will destroy all properties created
- * by the driver.
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create(struct drm_device *dev, int flags,
- const char *name, int num_values)
-{
- struct drm_property *property = NULL;
- int ret;
-
- property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
- if (!property)
- return NULL;
-
- property->dev = dev;
-
- if (num_values) {
- property->values = kcalloc(num_values, sizeof(uint64_t),
- GFP_KERNEL);
- if (!property->values)
- goto fail;
- }
-
- ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
- if (ret)
- goto fail;
-
- property->flags = flags;
- property->num_values = num_values;
- INIT_LIST_HEAD(&property->enum_list);
-
- if (name) {
- strncpy(property->name, name, DRM_PROP_NAME_LEN);
- property->name[DRM_PROP_NAME_LEN-1] = '\0';
- }
-
- list_add_tail(&property->head, &dev->mode_config.property_list);
-
- WARN_ON(!drm_property_type_valid(property));
-
- return property;
-fail:
- kfree(property->values);
- kfree(property);
- return NULL;
-}
-EXPORT_SYMBOL(drm_property_create);
-
-/**
- * drm_property_create_enum - create a new enumeration property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- * @props: enumeration lists with property values
- * @num_values: number of pre-defined values
- *
- * This creates a new generic drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * Userspace is only allowed to set one of the predefined values for enumeration
- * properties.
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
- const char *name,
- const struct drm_prop_enum_list *props,
- int num_values)
-{
- struct drm_property *property;
- int i, ret;
-
- flags |= DRM_MODE_PROP_ENUM;
-
- property = drm_property_create(dev, flags, name, num_values);
- if (!property)
- return NULL;
-
- for (i = 0; i < num_values; i++) {
- ret = drm_property_add_enum(property, i,
- props[i].type,
- props[i].name);
- if (ret) {
- drm_property_destroy(dev, property);
- return NULL;
- }
- }
-
- return property;
-}
-EXPORT_SYMBOL(drm_property_create_enum);
-
-/**
- * drm_property_create_bitmask - create a new bitmask property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- * @props: enumeration lists with property bitflags
- * @num_props: size of the @props array
- * @supported_bits: bitmask of all supported enumeration values
- *
- * This creates a new bitmask drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * Compared to plain enumeration properties userspace is allowed to set any
- * or'ed together combination of the predefined property bitflag values
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
- int flags, const char *name,
- const struct drm_prop_enum_list *props,
- int num_props,
- uint64_t supported_bits)
-{
- struct drm_property *property;
- int i, ret, index = 0;
- int num_values = hweight64(supported_bits);
-
- flags |= DRM_MODE_PROP_BITMASK;
-
- property = drm_property_create(dev, flags, name, num_values);
- if (!property)
- return NULL;
- for (i = 0; i < num_props; i++) {
- if (!(supported_bits & (1ULL << props[i].type)))
- continue;
-
- if (WARN_ON(index >= num_values)) {
- drm_property_destroy(dev, property);
- return NULL;
- }
-
- ret = drm_property_add_enum(property, index++,
- props[i].type,
- props[i].name);
- if (ret) {
- drm_property_destroy(dev, property);
- return NULL;
- }
- }
-
- return property;
-}
-EXPORT_SYMBOL(drm_property_create_bitmask);
-
-static struct drm_property *property_create_range(struct drm_device *dev,
- int flags, const char *name,
- uint64_t min, uint64_t max)
-{
- struct drm_property *property;
-
- property = drm_property_create(dev, flags, name, 2);
- if (!property)
- return NULL;
-
- property->values[0] = min;
- property->values[1] = max;
-
- return property;
-}
-
-/**
- * drm_property_create_range - create a new unsigned ranged property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- * @min: minimum value of the property
- * @max: maximum value of the property
- *
- * This creates a new generic drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * Userspace is allowed to set any unsigned integer value in the (min, max)
- * range inclusive.
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
- const char *name,
- uint64_t min, uint64_t max)
-{
- return property_create_range(dev, DRM_MODE_PROP_RANGE | flags,
- name, min, max);
-}
-EXPORT_SYMBOL(drm_property_create_range);
-
-/**
- * drm_property_create_signed_range - create a new signed ranged property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- * @min: minimum value of the property
- * @max: maximum value of the property
- *
- * This creates a new generic drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * Userspace is allowed to set any signed integer value in the (min, max)
- * range inclusive.
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
- int flags, const char *name,
- int64_t min, int64_t max)
-{
- return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags,
- name, I642U64(min), I642U64(max));
-}
-EXPORT_SYMBOL(drm_property_create_signed_range);
-
-/**
- * drm_property_create_object - create a new object property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- * @type: object type from DRM_MODE_OBJECT_* defines
- *
- * This creates a new generic drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * Userspace is only allowed to set this to any property value of the given
- * @type. Only useful for atomic properties, which is enforced.
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create_object(struct drm_device *dev,
- int flags, const char *name, uint32_t type)
-{
- struct drm_property *property;
-
- flags |= DRM_MODE_PROP_OBJECT;
-
- if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC)))
- return NULL;
-
- property = drm_property_create(dev, flags, name, 1);
- if (!property)
- return NULL;
-
- property->values[0] = type;
-
- return property;
-}
-EXPORT_SYMBOL(drm_property_create_object);
-
-/**
- * drm_property_create_bool - create a new boolean property type
- * @dev: drm device
- * @flags: flags specifying the property type
- * @name: name of the property
- *
- * This creates a new generic drm property which can then be attached to a drm
- * object with drm_object_attach_property. The returned property object must be
- * freed with drm_property_destroy.
- *
- * This is implemented as a ranged property with only {0, 1} as valid values.
- *
- * Returns:
- * A pointer to the newly created property on success, NULL on failure.
- */
-struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags,
- const char *name)
-{
- return drm_property_create_range(dev, flags, name, 0, 1);
-}
-EXPORT_SYMBOL(drm_property_create_bool);
-
-/**
- * drm_property_add_enum - add a possible value to an enumeration property
- * @property: enumeration property to change
- * @index: index of the new enumeration
- * @value: value of the new enumeration
- * @name: symbolic name of the new enumeration
- *
- * This functions adds enumerations to a property.
- *
- * It's use is deprecated, drivers should use one of the more specific helpers
- * to directly create the property with all enumerations already attached.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_property_add_enum(struct drm_property *property, int index,
- uint64_t value, const char *name)
-{
- struct drm_property_enum *prop_enum;
-
- if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
- drm_property_type_is(property, DRM_MODE_PROP_BITMASK)))
- return -EINVAL;
-
- /*
- * Bitmask enum properties have the additional constraint of values
- * from 0 to 63
- */
- if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) &&
- (value > 63))
- return -EINVAL;
-
- if (!list_empty(&property->enum_list)) {
- list_for_each_entry(prop_enum, &property->enum_list, head) {
- if (prop_enum->value == value) {
- strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
- prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
- return 0;
- }
- }
- }
-
- prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
- if (!prop_enum)
- return -ENOMEM;
-
- strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
- prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
- prop_enum->value = value;
-
- property->values[index] = value;
- list_add_tail(&prop_enum->head, &property->enum_list);
- return 0;
-}
-EXPORT_SYMBOL(drm_property_add_enum);
-
-/**
- * drm_property_destroy - destroy a drm property
- * @dev: drm device
- * @property: property to destry
- *
- * This function frees a property including any attached resources like
- * enumeration values.
- */
-void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
-{
- struct drm_property_enum *prop_enum, *pt;
-
- list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) {
- list_del(&prop_enum->head);
- kfree(prop_enum);
- }
-
- if (property->num_values)
- kfree(property->values);
- drm_mode_object_unregister(dev, &property->base);
- list_del(&property->head);
- kfree(property);
-}
-EXPORT_SYMBOL(drm_property_destroy);
-
-/**
- * drm_object_attach_property - attach a property to a modeset object
- * @obj: drm modeset object
- * @property: property to attach
- * @init_val: initial value of the property
- *
- * This attaches the given property to the modeset object with the given initial
- * value. Currently this function cannot fail since the properties are stored in
- * a statically sized array.
- */
-void drm_object_attach_property(struct drm_mode_object *obj,
- struct drm_property *property,
- uint64_t init_val)
-{
- int count = obj->properties->count;
-
- if (count == DRM_OBJECT_MAX_PROPERTY) {
- WARN(1, "Failed to attach object property (type: 0x%x). Please "
- "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
- "you see this message on the same object type.\n",
- obj->type);
- return;
- }
-
- obj->properties->properties[count] = property;
- obj->properties->values[count] = init_val;
- obj->properties->count++;
- if (property->flags & DRM_MODE_PROP_ATOMIC)
- obj->properties->atomic_count++;
-}
-EXPORT_SYMBOL(drm_object_attach_property);
-
-/**
- * drm_object_property_set_value - set the value of a property
- * @obj: drm mode object to set property value for
- * @property: property to set
- * @val: value the property should be set to
- *
- * This functions sets a given property on a given object. This function only
- * changes the software state of the property, it does not call into the
- * driver's ->set_property callback.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_object_property_set_value(struct drm_mode_object *obj,
- struct drm_property *property, uint64_t val)
-{
- int i;
-
- for (i = 0; i < obj->properties->count; i++) {
- if (obj->properties->properties[i] == property) {
- obj->properties->values[i] = val;
- return 0;
- }
- }
-
- return -EINVAL;
-}
-EXPORT_SYMBOL(drm_object_property_set_value);
-
-/**
- * drm_object_property_get_value - retrieve the value of a property
- * @obj: drm mode object to get property value from
- * @property: property to retrieve
- * @val: storage for the property value
- *
- * This function retrieves the softare state of the given property for the given
- * property. Since there is no driver callback to retrieve the current property
- * value this might be out of sync with the hardware, depending upon the driver
- * and property.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_object_property_get_value(struct drm_mode_object *obj,
- struct drm_property *property, uint64_t *val)
-{
- int i;
-
- /* read-only properties bypass atomic mechanism and still store
- * their value in obj->properties->values[].. mostly to avoid
- * having to deal w/ EDID and similar props in atomic paths:
- */
- if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) &&
- !(property->flags & DRM_MODE_PROP_IMMUTABLE))
- return drm_atomic_get_property(obj, property, val);
-
- for (i = 0; i < obj->properties->count; i++) {
- if (obj->properties->properties[i] == property) {
- *val = obj->properties->values[i];
- return 0;
- }
- }
-
- return -EINVAL;
-}
-EXPORT_SYMBOL(drm_object_property_get_value);
-
-/**
- * drm_mode_getproperty_ioctl - get the property metadata
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * This function retrieves the metadata for a given property, like the different
- * possible values for an enum property or the limits for a range property.
- *
- * Blob properties are special
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getproperty_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_get_property *out_resp = data;
- struct drm_property *property;
- int enum_count = 0;
- int value_count = 0;
- int ret = 0, i;
- int copied;
- struct drm_property_enum *prop_enum;
- struct drm_mode_property_enum __user *enum_ptr;
- uint64_t __user *values_ptr;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- drm_modeset_lock_all(dev);
- property = drm_property_find(dev, out_resp->prop_id);
- if (!property) {
- ret = -ENOENT;
- goto done;
- }
-
- if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
- drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
- list_for_each_entry(prop_enum, &property->enum_list, head)
- enum_count++;
- }
-
- value_count = property->num_values;
-
- strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
- out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
- out_resp->flags = property->flags;
-
- if ((out_resp->count_values >= value_count) && value_count) {
- values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
- for (i = 0; i < value_count; i++) {
- if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
- ret = -EFAULT;
- goto done;
- }
- }
- }
- out_resp->count_values = value_count;
-
- if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
- drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
- if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
- copied = 0;
- enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
- list_for_each_entry(prop_enum, &property->enum_list, head) {
-
- if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
- ret = -EFAULT;
- goto done;
- }
-
- if (copy_to_user(&enum_ptr[copied].name,
- &prop_enum->name, DRM_PROP_NAME_LEN)) {
- ret = -EFAULT;
- goto done;
- }
- copied++;
- }
- }
- out_resp->count_enum_blobs = enum_count;
- }
-
- /*
- * NOTE: The idea seems to have been to use this to read all the blob
- * property values. But nothing ever added them to the corresponding
- * list, userspace always used the special-purpose get_blob ioctl to
- * read the value for a blob property. It also doesn't make a lot of
- * sense to return values here when everything else is just metadata for
- * the property itself.
- */
- if (drm_property_type_is(property, DRM_MODE_PROP_BLOB))
- out_resp->count_enum_blobs = 0;
-done:
- drm_modeset_unlock_all(dev);
- return ret;
-}
-
-static void drm_property_free_blob(struct kref *kref)
-{
- struct drm_property_blob *blob =
- container_of(kref, struct drm_property_blob, base.refcount);
-
- mutex_lock(&blob->dev->mode_config.blob_lock);
- list_del(&blob->head_global);
- mutex_unlock(&blob->dev->mode_config.blob_lock);
-
- drm_mode_object_unregister(blob->dev, &blob->base);
-
- kfree(blob);
-}
-
-/**
- * drm_property_create_blob - Create new blob property
- *
- * Creates a new blob property for a specified DRM device, optionally
- * copying data.
- *
- * @dev: DRM device to create property for
- * @length: Length to allocate for blob data
- * @data: If specified, copies data into blob
- *
- * Returns:
- * New blob property with a single reference on success, or an ERR_PTR
- * value on failure.
- */
-struct drm_property_blob *
-drm_property_create_blob(struct drm_device *dev, size_t length,
- const void *data)
-{
- struct drm_property_blob *blob;
- int ret;
-
- if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob))
- return ERR_PTR(-EINVAL);
-
- blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
- if (!blob)
- return ERR_PTR(-ENOMEM);
-
- /* This must be explicitly initialised, so we can safely call list_del
- * on it in the removal handler, even if it isn't in a file list. */
- INIT_LIST_HEAD(&blob->head_file);
- blob->length = length;
- blob->dev = dev;
-
- if (data)
- memcpy(blob->data, data, length);
-
- ret = drm_mode_object_get_reg(dev, &blob->base, DRM_MODE_OBJECT_BLOB,
- true, drm_property_free_blob);
- if (ret) {
- kfree(blob);
- return ERR_PTR(-EINVAL);
- }
-
- mutex_lock(&dev->mode_config.blob_lock);
- list_add_tail(&blob->head_global,
- &dev->mode_config.property_blob_list);
- mutex_unlock(&dev->mode_config.blob_lock);
-
- return blob;
-}
-EXPORT_SYMBOL(drm_property_create_blob);
-
-/**
- * drm_property_unreference_blob - Unreference a blob property
- *
- * Drop a reference on a blob property. May free the object.
- *
- * @blob: Pointer to blob property
- */
-void drm_property_unreference_blob(struct drm_property_blob *blob)
-{
- if (!blob)
- return;
-
- drm_mode_object_unreference(&blob->base);
-}
-EXPORT_SYMBOL(drm_property_unreference_blob);
-
-/**
- * drm_property_destroy_user_blobs - destroy all blobs created by this client
- * @dev: DRM device
- * @file_priv: destroy all blobs owned by this file handle
- */
-void drm_property_destroy_user_blobs(struct drm_device *dev,
- struct drm_file *file_priv)
-{
- struct drm_property_blob *blob, *bt;
-
- /*
- * When the file gets released that means no one else can access the
- * blob list any more, so no need to grab dev->blob_lock.
- */
- list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) {
- list_del_init(&blob->head_file);
- drm_property_unreference_blob(blob);
- }
-}
-
-/**
- * drm_property_reference_blob - Take a reference on an existing property
- *
- * Take a new reference on an existing blob property.
- *
- * @blob: Pointer to blob property
- */
-struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob)
-{
- drm_mode_object_reference(&blob->base);
- return blob;
-}
-EXPORT_SYMBOL(drm_property_reference_blob);
-
-/**
- * drm_property_lookup_blob - look up a blob property and take a reference
- * @dev: drm device
- * @id: id of the blob property
- *
- * If successful, this takes an additional reference to the blob property.
- * callers need to make sure to eventually unreference the returned property
- * again, using @drm_property_unreference_blob.
- */
-struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev,
- uint32_t id)
-{
- struct drm_mode_object *obj;
- struct drm_property_blob *blob = NULL;
-
- obj = _object_find(dev, id, DRM_MODE_OBJECT_BLOB);
- if (obj)
- blob = obj_to_blob(obj);
- return blob;
-}
-EXPORT_SYMBOL(drm_property_lookup_blob);
-
-/**
- * drm_property_replace_global_blob - atomically replace existing blob property
- * @dev: drm device
- * @replace: location of blob property pointer to be replaced
- * @length: length of data for new blob, or 0 for no data
- * @data: content for new blob, or NULL for no data
- * @obj_holds_id: optional object for property holding blob ID
- * @prop_holds_id: optional property holding blob ID
- * @return 0 on success or error on failure
- *
- * This function will atomically replace a global property in the blob list,
- * optionally updating a property which holds the ID of that property. It is
- * guaranteed to be atomic: no caller will be allowed to see intermediate
- * results, and either the entire operation will succeed and clean up the
- * previous property, or it will fail and the state will be unchanged.
- *
- * If length is 0 or data is NULL, no new blob will be created, and the holding
- * property, if specified, will be set to 0.
- *
- * Access to the replace pointer is assumed to be protected by the caller, e.g.
- * by holding the relevant modesetting object lock for its parent.
- *
- * For example, a drm_connector has a 'PATH' property, which contains the ID
- * of a blob property with the value of the MST path information. Calling this
- * function with replace pointing to the connector's path_blob_ptr, length and
- * data set for the new path information, obj_holds_id set to the connector's
- * base object, and prop_holds_id set to the path property name, will perform
- * a completely atomic update. The access to path_blob_ptr is protected by the
- * caller holding a lock on the connector.
- */
-static int drm_property_replace_global_blob(struct drm_device *dev,
- struct drm_property_blob **replace,
- size_t length,
- const void *data,
- struct drm_mode_object *obj_holds_id,
- struct drm_property *prop_holds_id)
-{
- struct drm_property_blob *new_blob = NULL;
- struct drm_property_blob *old_blob = NULL;
- int ret;
-
- WARN_ON(replace == NULL);
-
- old_blob = *replace;
-
- if (length && data) {
- new_blob = drm_property_create_blob(dev, length, data);
- if (IS_ERR(new_blob))
- return PTR_ERR(new_blob);
- }
-
- /* This does not need to be synchronised with blob_lock, as the
- * get_properties ioctl locks all modesetting objects, and
- * obj_holds_id must be locked before calling here, so we cannot
- * have its value out of sync with the list membership modified
- * below under blob_lock. */
- if (obj_holds_id) {
- ret = drm_object_property_set_value(obj_holds_id,
- prop_holds_id,
- new_blob ?
- new_blob->base.id : 0);
- if (ret != 0)
- goto err_created;
- }
-
- drm_property_unreference_blob(old_blob);
- *replace = new_blob;
-
- return 0;
-
-err_created:
- drm_property_unreference_blob(new_blob);
- return ret;
-}
-
-/**
- * drm_mode_getblob_ioctl - get the contents of a blob property value
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * This function retrieves the contents of a blob property. The value stored in
- * an object's blob property is just a normal modeset object id.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getblob_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_get_blob *out_resp = data;
- struct drm_property_blob *blob;
- int ret = 0;
- void __user *blob_ptr;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- blob = drm_property_lookup_blob(dev, out_resp->blob_id);
- if (!blob)
- return -ENOENT;
-
- if (out_resp->length == blob->length) {
- blob_ptr = (void __user *)(unsigned long)out_resp->data;
- if (copy_to_user(blob_ptr, blob->data, blob->length)) {
- ret = -EFAULT;
- goto unref;
- }
- }
- out_resp->length = blob->length;
-unref:
- drm_property_unreference_blob(blob);
-
- return ret;
-}
-
-/**
- * drm_mode_createblob_ioctl - create a new blob property
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * This function creates a new blob property with user-defined values. In order
- * to give us sensible validation and checking when creating, rather than at
- * every potential use, we also require a type to be provided upfront.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_createblob_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_create_blob *out_resp = data;
- struct drm_property_blob *blob;
- void __user *blob_ptr;
- int ret = 0;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- blob = drm_property_create_blob(dev, out_resp->length, NULL);
- if (IS_ERR(blob))
- return PTR_ERR(blob);
-
- blob_ptr = (void __user *)(unsigned long)out_resp->data;
- if (copy_from_user(blob->data, blob_ptr, out_resp->length)) {
- ret = -EFAULT;
- goto out_blob;
- }
-
- /* Dropping the lock between create_blob and our access here is safe
- * as only the same file_priv can remove the blob; at this point, it is
- * not associated with any file_priv. */
- mutex_lock(&dev->mode_config.blob_lock);
- out_resp->blob_id = blob->base.id;
- list_add_tail(&blob->head_file, &file_priv->blobs);
- mutex_unlock(&dev->mode_config.blob_lock);
-
- return 0;
-
-out_blob:
- drm_property_unreference_blob(blob);
- return ret;
-}
-
-/**
- * drm_mode_destroyblob_ioctl - destroy a user blob property
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * Destroy an existing user-defined blob property.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_destroyblob_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_destroy_blob *out_resp = data;
- struct drm_property_blob *blob = NULL, *bt;
- bool found = false;
- int ret = 0;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- blob = drm_property_lookup_blob(dev, out_resp->blob_id);
- if (!blob)
- return -ENOENT;
-
- mutex_lock(&dev->mode_config.blob_lock);
- /* Ensure the property was actually created by this user. */
- list_for_each_entry(bt, &file_priv->blobs, head_file) {
- if (bt == blob) {
- found = true;
- break;
- }
- }
-
- if (!found) {
- ret = -EPERM;
- goto err;
- }
-
- /* We must drop head_file here, because we may not be the last
- * reference on the blob. */
- list_del_init(&blob->head_file);
- mutex_unlock(&dev->mode_config.blob_lock);
-
- /* One reference from lookup, and one from the filp. */
- drm_property_unreference_blob(blob);
- drm_property_unreference_blob(blob);
-
- return 0;
-
-err:
- mutex_unlock(&dev->mode_config.blob_lock);
- drm_property_unreference_blob(blob);
-
- return ret;
-}
-
-/**
- * drm_mode_connector_set_path_property - set tile property on connector
- * @connector: connector to set property on.
- * @path: path to use for property; must not be NULL.
- *
- * This creates a property to expose to userspace to specify a
- * connector path. This is mainly used for DisplayPort MST where
- * connectors have a topology and we want to allow userspace to give
- * them more meaningful names.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_connector_set_path_property(struct drm_connector *connector,
- const char *path)
-{
- struct drm_device *dev = connector->dev;
- int ret;
-
- ret = drm_property_replace_global_blob(dev,
- &connector->path_blob_ptr,
- strlen(path) + 1,
- path,
- &connector->base,
- dev->mode_config.path_property);
- return ret;
-}
-EXPORT_SYMBOL(drm_mode_connector_set_path_property);
-
-/**
- * drm_mode_connector_set_tile_property - set tile property on connector
- * @connector: connector to set property on.
- *
- * This looks up the tile information for a connector, and creates a
- * property for userspace to parse if it exists. The property is of
- * the form of 8 integers using ':' as a separator.
- *
- * Returns:
- * Zero on success, errno on failure.
- */
-int drm_mode_connector_set_tile_property(struct drm_connector *connector)
-{
- struct drm_device *dev = connector->dev;
- char tile[256];
- int ret;
-
- if (!connector->has_tile) {
- ret = drm_property_replace_global_blob(dev,
- &connector->tile_blob_ptr,
- 0,
- NULL,
- &connector->base,
- dev->mode_config.tile_property);
- return ret;
- }
-
- snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d",
- connector->tile_group->id, connector->tile_is_single_monitor,
- connector->num_h_tile, connector->num_v_tile,
- connector->tile_h_loc, connector->tile_v_loc,
- connector->tile_h_size, connector->tile_v_size);
-
- ret = drm_property_replace_global_blob(dev,
- &connector->tile_blob_ptr,
- strlen(tile) + 1,
- tile,
- &connector->base,
- dev->mode_config.tile_property);
- return ret;
-}
-EXPORT_SYMBOL(drm_mode_connector_set_tile_property);
-
-/**
- * drm_mode_connector_update_edid_property - update the edid property of a connector
- * @connector: drm connector
- * @edid: new value of the edid property
- *
- * This function creates a new blob modeset object and assigns its id to the
- * connector's edid property.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_connector_update_edid_property(struct drm_connector *connector,
- const struct edid *edid)
-{
- struct drm_device *dev = connector->dev;
- size_t size = 0;
- int ret;
-
- /* ignore requests to set edid when overridden */
- if (connector->override_edid)
- return 0;
-
- if (edid)
- size = EDID_LENGTH * (1 + edid->extensions);
-
- ret = drm_property_replace_global_blob(dev,
- &connector->edid_blob_ptr,
- size,
- edid,
- &connector->base,
- dev->mode_config.edid_property);
- return ret;
-}
-EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
-
-/* Some properties could refer to dynamic refcnt'd objects, or things that
- * need special locking to handle lifetime issues (ie. to ensure the prop
- * value doesn't become invalid part way through the property update due to
- * race). The value returned by reference via 'obj' should be passed back
- * to drm_property_change_valid_put() after the property is set (and the
- * object to which the property is attached has a chance to take it's own
- * reference).
- */
-bool drm_property_change_valid_get(struct drm_property *property,
- uint64_t value, struct drm_mode_object **ref)
-{
- int i;
-
- if (property->flags & DRM_MODE_PROP_IMMUTABLE)
- return false;
-
- *ref = NULL;
-
- if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) {
- if (value < property->values[0] || value > property->values[1])
- return false;
- return true;
- } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) {
- int64_t svalue = U642I64(value);
-
- if (svalue < U642I64(property->values[0]) ||
- svalue > U642I64(property->values[1]))
- return false;
- return true;
- } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) {
- uint64_t valid_mask = 0;
-
- for (i = 0; i < property->num_values; i++)
- valid_mask |= (1ULL << property->values[i]);
- return !(value & ~valid_mask);
- } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) {
- struct drm_property_blob *blob;
-
- if (value == 0)
- return true;
-
- blob = drm_property_lookup_blob(property->dev, value);
- if (blob) {
- *ref = &blob->base;
- return true;
- } else {
- return false;
- }
- } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
- /* a zero value for an object property translates to null: */
- if (value == 0)
- return true;
-
- *ref = _object_find(property->dev, value, property->values[0]);
- return *ref != NULL;
- }
-
- for (i = 0; i < property->num_values; i++)
- if (property->values[i] == value)
- return true;
- return false;
-}
-
-void drm_property_change_valid_put(struct drm_property *property,
- struct drm_mode_object *ref)
-{
- if (!ref)
- return;
-
- if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
- drm_mode_object_unreference(ref);
- } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB))
- drm_property_unreference_blob(obj_to_blob(ref));
-}
-
-/**
- * drm_mode_connector_property_set_ioctl - set the current value of a connector property
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * This function sets the current value for a connectors's property. It also
- * calls into a driver's ->set_property callback to update the hardware state
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_mode_connector_set_property *conn_set_prop = data;
- struct drm_mode_obj_set_property obj_set_prop = {
- .value = conn_set_prop->value,
- .prop_id = conn_set_prop->prop_id,
- .obj_id = conn_set_prop->connector_id,
- .obj_type = DRM_MODE_OBJECT_CONNECTOR
- };
-
- /* It does all the locking and checking we need */
- return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
-}
-
-static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
- struct drm_property *property,
- uint64_t value)
-{
- int ret = -EINVAL;
- struct drm_connector *connector = obj_to_connector(obj);
-
- /* Do DPMS ourselves */
- if (property == connector->dev->mode_config.dpms_property) {
- ret = (*connector->funcs->dpms)(connector, (int)value);
- } else if (connector->funcs->set_property)
- ret = connector->funcs->set_property(connector, property, value);
-
- /* store the property value if successful */
- if (!ret)
- drm_object_property_set_value(&connector->base, property, value);
- return ret;
-}
-
-static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
- struct drm_property *property,
- uint64_t value)
-{
- int ret = -EINVAL;
- struct drm_crtc *crtc = obj_to_crtc(obj);
-
- if (crtc->funcs->set_property)
- ret = crtc->funcs->set_property(crtc, property, value);
- if (!ret)
- drm_object_property_set_value(obj, property, value);
-
- return ret;
-}
-
-/**
- * drm_mode_plane_set_obj_prop - set the value of a property
- * @plane: drm plane object to set property value for
- * @property: property to set
- * @value: value the property should be set to
- *
- * This functions sets a given property on a given plane object. This function
- * calls the driver's ->set_property callback and changes the software state of
- * the property if the callback succeeds.
- *
- * Returns:
- * Zero on success, error code on failure.
- */
-int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
- struct drm_property *property,
- uint64_t value)
-{
- int ret = -EINVAL;
- struct drm_mode_object *obj = &plane->base;
-
- if (plane->funcs->set_property)
- ret = plane->funcs->set_property(plane, property, value);
- if (!ret)
- drm_object_property_set_value(obj, property, value);
-
- return ret;
-}
-EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
-
-/**
- * drm_mode_obj_get_properties_ioctl - get the current value of a object's property
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
+ * drm_mode_getresources - get graphics configuration
+ * @dev: drm device for the ioctl
+ * @data: data pointer for the ioctl
+ * @file_priv: drm file for the ioctl call
*
- * This function retrieves the current value for an object's property. Compared
- * to the connector specific ioctl this one is extended to also work on crtc and
- * plane objects.
+ * Construct a set of configuration description structures and return
+ * them to the user, including CRTC, connector and framebuffer configuration.
*
* Called by the user via ioctl.
*
* Returns:
* Zero on success, negative errno on failure.
*/
-int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
+int drm_mode_getresources(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_mode_obj_get_properties *arg = data;
- struct drm_mode_object *obj;
+ struct drm_mode_card_res *card_res = data;
+ struct list_head *lh;
+ struct drm_framebuffer *fb;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
int ret = 0;
+ int connector_count = 0;
+ int crtc_count = 0;
+ int fb_count = 0;
+ int encoder_count = 0;
+ int copied = 0;
+ uint32_t __user *fb_id;
+ uint32_t __user *crtc_id;
+ uint32_t __user *connector_id;
+ uint32_t __user *encoder_id;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
- drm_modeset_lock_all(dev);
- obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
- if (!obj) {
- ret = -ENOENT;
- goto out;
+ mutex_lock(&file_priv->fbs_lock);
+ /*
+ * For the non-control nodes we need to limit the list of resources
+ * by IDs in the group list for this node
+ */
+ list_for_each(lh, &file_priv->fbs)
+ fb_count++;
+
+ /* handle this in 4 parts */
+ /* FBs */
+ if (card_res->count_fbs >= fb_count) {
+ copied = 0;
+ fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
+ list_for_each_entry(fb, &file_priv->fbs, filp_head) {
+ if (put_user(fb->base.id, fb_id + copied)) {
+ mutex_unlock(&file_priv->fbs_lock);
+ return -EFAULT;
+ }
+ copied++;
+ }
}
- if (!obj->properties) {
- ret = -EINVAL;
- goto out_unref;
+ card_res->count_fbs = fb_count;
+ mutex_unlock(&file_priv->fbs_lock);
+
+ /* mode_config.mutex protects the connector list against e.g. DP MST
+ * connector hot-adding. CRTC/Plane lists are invariant. */
+ mutex_lock(&dev->mode_config.mutex);
+ drm_for_each_crtc(crtc, dev)
+ crtc_count++;
+
+ drm_for_each_connector(connector, dev)
+ connector_count++;
+
+ drm_for_each_encoder(encoder, dev)
+ encoder_count++;
+
+ card_res->max_height = dev->mode_config.max_height;
+ card_res->min_height = dev->mode_config.min_height;
+ card_res->max_width = dev->mode_config.max_width;
+ card_res->min_width = dev->mode_config.min_width;
+
+ /* CRTCs */
+ if (card_res->count_crtcs >= crtc_count) {
+ copied = 0;
+ crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
+ drm_for_each_crtc(crtc, dev) {
+ if (put_user(crtc->base.id, crtc_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ card_res->count_crtcs = crtc_count;
+
+ /* Encoders */
+ if (card_res->count_encoders >= encoder_count) {
+ copied = 0;
+ encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
+ drm_for_each_encoder(encoder, dev) {
+ if (put_user(encoder->base.id, encoder_id +
+ copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
}
+ card_res->count_encoders = encoder_count;
- ret = get_properties(obj, file_priv->atomic,
- (uint32_t __user *)(unsigned long)(arg->props_ptr),
- (uint64_t __user *)(unsigned long)(arg->prop_values_ptr),
- &arg->count_props);
+ /* Connectors */
+ if (card_res->count_connectors >= connector_count) {
+ copied = 0;
+ connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
+ drm_for_each_connector(connector, dev) {
+ if (put_user(connector->base.id,
+ connector_id + copied)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ copied++;
+ }
+ }
+ card_res->count_connectors = connector_count;
-out_unref:
- drm_mode_object_unreference(obj);
out:
- drm_modeset_unlock_all(dev);
+ mutex_unlock(&dev->mode_config.mutex);
return ret;
}
/**
- * drm_mode_obj_set_property_ioctl - set the current value of an object's property
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
+ * drm_mode_getcrtc - get CRTC configuration
+ * @dev: drm device for the ioctl
+ * @data: data pointer for the ioctl
+ * @file_priv: drm file for the ioctl call
*
- * This function sets the current value for an object's property. It also calls
- * into a driver's ->set_property callback to update the hardware state.
- * Compared to the connector specific ioctl this one is extended to also work on
- * crtc and plane objects.
+ * Construct a CRTC configuration structure to return to the user.
*
* Called by the user via ioctl.
*
* Returns:
* Zero on success, negative errno on failure.
*/
-int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
+int drm_mode_getcrtc(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
{
- struct drm_mode_obj_set_property *arg = data;
- struct drm_mode_object *arg_obj;
- struct drm_mode_object *prop_obj;
- struct drm_property *property;
- int i, ret = -EINVAL;
- struct drm_mode_object *ref;
+ struct drm_mode_crtc *crtc_resp = data;
+ struct drm_crtc *crtc;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
- drm_modeset_lock_all(dev);
+ crtc = drm_crtc_find(dev, crtc_resp->crtc_id);
+ if (!crtc)
+ return -ENOENT;
- arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
- if (!arg_obj) {
- ret = -ENOENT;
- goto out;
- }
- if (!arg_obj->properties)
- goto out_unref;
+ drm_modeset_lock_crtc(crtc, crtc->primary);
+ crtc_resp->gamma_size = crtc->gamma_size;
+ if (crtc->primary->fb)
+ crtc_resp->fb_id = crtc->primary->fb->base.id;
+ else
+ crtc_resp->fb_id = 0;
- for (i = 0; i < arg_obj->properties->count; i++)
- if (arg_obj->properties->properties[i]->base.id == arg->prop_id)
- break;
+ if (crtc->state) {
+ crtc_resp->x = crtc->primary->state->src_x >> 16;
+ crtc_resp->y = crtc->primary->state->src_y >> 16;
+ if (crtc->state->enable) {
+ drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);
+ crtc_resp->mode_valid = 1;
- if (i == arg_obj->properties->count)
- goto out_unref;
+ } else {
+ crtc_resp->mode_valid = 0;
+ }
+ } else {
+ crtc_resp->x = crtc->x;
+ crtc_resp->y = crtc->y;
+ if (crtc->enabled) {
+ drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode);
+ crtc_resp->mode_valid = 1;
- prop_obj = drm_mode_object_find(dev, arg->prop_id,
- DRM_MODE_OBJECT_PROPERTY);
- if (!prop_obj) {
- ret = -ENOENT;
- goto out_unref;
- }
- property = obj_to_property(prop_obj);
-
- if (!drm_property_change_valid_get(property, arg->value, &ref))
- goto out_unref;
-
- switch (arg_obj->type) {
- case DRM_MODE_OBJECT_CONNECTOR:
- ret = drm_mode_connector_set_obj_prop(arg_obj, property,
- arg->value);
- break;
- case DRM_MODE_OBJECT_CRTC:
- ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
- break;
- case DRM_MODE_OBJECT_PLANE:
- ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj),
- property, arg->value);
- break;
+ } else {
+ crtc_resp->mode_valid = 0;
+ }
}
+ drm_modeset_unlock_crtc(crtc);
- drm_property_change_valid_put(property, ref);
-
-out_unref:
- drm_mode_object_unreference(arg_obj);
-out:
- drm_modeset_unlock_all(dev);
- return ret;
+ return 0;
}
/**
- * drm_mode_connector_attach_encoder - attach a connector to an encoder
- * @connector: connector to attach
- * @encoder: encoder to attach @connector to
+ * drm_mode_set_config_internal - helper to call ->set_config
+ * @set: modeset config to set
*
- * This function links up a connector to an encoder. Note that the routing
- * restrictions between encoders and crtcs are exposed to userspace through the
- * possible_clones and possible_crtcs bitmasks.
+ * This is a little helper to wrap internal calls to the ->set_config driver
+ * interface. The only thing it adds is correct refcounting dance.
*
* Returns:
* Zero on success, negative errno on failure.
*/
-int drm_mode_connector_attach_encoder(struct drm_connector *connector,
- struct drm_encoder *encoder)
+int drm_mode_set_config_internal(struct drm_mode_set *set)
{
- int i;
+ struct drm_crtc *crtc = set->crtc;
+ struct drm_framebuffer *fb;
+ struct drm_crtc *tmp;
+ int ret;
/*
- * In the past, drivers have attempted to model the static association
- * of connector to encoder in simple connector/encoder devices using a
- * direct assignment of connector->encoder = encoder. This connection
- * is a logical one and the responsibility of the core, so drivers are
- * expected not to mess with this.
- *
- * Note that the error return should've been enough here, but a large
- * majority of drivers ignores the return value, so add in a big WARN
- * to get people's attention.
+ * NOTE: ->set_config can also disable other crtcs (if we steal all
+ * connectors from it), hence we need to refcount the fbs across all
+ * crtcs. Atomic modeset will have saner semantics ...
*/
- if (WARN_ON(connector->encoder))
- return -EINVAL;
-
- for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
- if (connector->encoder_ids[i] == 0) {
- connector->encoder_ids[i] = encoder->base.id;
- return 0;
- }
- }
- return -ENOMEM;
-}
-EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
-
-/**
- * drm_mode_crtc_set_gamma_size - set the gamma table size
- * @crtc: CRTC to set the gamma table size for
- * @gamma_size: size of the gamma table
- *
- * Drivers which support gamma tables should set this to the supported gamma
- * table size when initializing the CRTC. Currently the drm core only supports a
- * fixed gamma table size.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
- int gamma_size)
-{
- uint16_t *r_base, *g_base, *b_base;
- int i;
+ drm_for_each_crtc(tmp, crtc->dev)
+ tmp->primary->old_fb = tmp->primary->fb;
- crtc->gamma_size = gamma_size;
+ fb = set->fb;
- crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3,
- GFP_KERNEL);
- if (!crtc->gamma_store) {
- crtc->gamma_size = 0;
- return -ENOMEM;
+ ret = crtc->funcs->set_config(set);
+ if (ret == 0) {
+ crtc->primary->crtc = crtc;
+ crtc->primary->fb = fb;
}
- r_base = crtc->gamma_store;
- g_base = r_base + gamma_size;
- b_base = g_base + gamma_size;
- for (i = 0; i < gamma_size; i++) {
- r_base[i] = i << 8;
- g_base[i] = i << 8;
- b_base[i] = i << 8;
+ drm_for_each_crtc(tmp, crtc->dev) {
+ if (tmp->primary->fb)
+ drm_framebuffer_reference(tmp->primary->fb);
+ if (tmp->primary->old_fb)
+ drm_framebuffer_unreference(tmp->primary->old_fb);
+ tmp->primary->old_fb = NULL;
}
-
- return 0;
+ return ret;
}
-EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+EXPORT_SYMBOL(drm_mode_set_config_internal);
/**
- * drm_mode_gamma_set_ioctl - set the gamma table
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * Set the gamma table of a CRTC to the one passed in by the user. Userspace can
- * inquire the required gamma table size through drm_mode_gamma_get_ioctl.
- *
- * Called by the user via ioctl.
+ * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode
+ * @mode: mode to query
+ * @hdisplay: hdisplay value to fill in
+ * @vdisplay: vdisplay value to fill in
*
- * Returns:
- * Zero on success, negative errno on failure.
+ * The vdisplay value will be doubled if the specified mode is a stereo mode of
+ * the appropriate layout.
*/
-int drm_mode_gamma_set_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
+void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
+ int *hdisplay, int *vdisplay)
{
- struct drm_mode_crtc_lut *crtc_lut = data;
- struct drm_crtc *crtc;
- void *r_base, *g_base, *b_base;
- int size;
- int ret = 0;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- drm_modeset_lock_all(dev);
- crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
- if (!crtc) {
- ret = -ENOENT;
- goto out;
- }
-
- if (crtc->funcs->gamma_set == NULL) {
- ret = -ENOSYS;
- goto out;
- }
-
- /* memcpy into gamma store */
- if (crtc_lut->gamma_size != crtc->gamma_size) {
- ret = -EINVAL;
- goto out;
- }
+ struct drm_display_mode adjusted;
- size = crtc_lut->gamma_size * (sizeof(uint16_t));
- r_base = crtc->gamma_store;
- if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
- ret = -EFAULT;
- goto out;
- }
+ drm_mode_copy(&adjusted, mode);
+ drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY);
+ *hdisplay = adjusted.crtc_hdisplay;
+ *vdisplay = adjusted.crtc_vdisplay;
+}
+EXPORT_SYMBOL(drm_crtc_get_hv_timing);
- g_base = r_base + size;
- if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
- ret = -EFAULT;
- goto out;
- }
+/**
+ * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the
+ * CRTC viewport
+ * @crtc: CRTC that framebuffer will be displayed on
+ * @x: x panning
+ * @y: y panning
+ * @mode: mode that framebuffer will be displayed under
+ * @fb: framebuffer to check size of
+ */
+int drm_crtc_check_viewport(const struct drm_crtc *crtc,
+ int x, int y,
+ const struct drm_display_mode *mode,
+ const struct drm_framebuffer *fb)
- b_base = g_base + size;
- if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
- ret = -EFAULT;
- goto out;
- }
+{
+ int hdisplay, vdisplay;
- ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
+ drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
-out:
- drm_modeset_unlock_all(dev);
- return ret;
+ if (crtc->state &&
+ crtc->primary->state->rotation & (DRM_ROTATE_90 |
+ DRM_ROTATE_270))
+ swap(hdisplay, vdisplay);
+ return drm_framebuffer_check_src_coords(x << 16, y << 16,
+ hdisplay << 16, vdisplay << 16,
+ fb);
}
+EXPORT_SYMBOL(drm_crtc_check_viewport);
/**
- * drm_mode_gamma_get_ioctl - get the gamma table
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
+ * drm_mode_setcrtc - set CRTC configuration
+ * @dev: drm device for the ioctl
+ * @data: data pointer for the ioctl
+ * @file_priv: drm file for the ioctl call
*
- * Copy the current gamma table into the storage provided. This also provides
- * the gamma table size the driver expects, which can be used to size the
- * allocated storage.
+ * Build a new CRTC configuration based on user request.
*
* Called by the user via ioctl.
*
* Returns:
* Zero on success, negative errno on failure.
*/
-int drm_mode_gamma_get_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
+int drm_mode_setcrtc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_mode_config *config = &dev->mode_config;
+ struct drm_mode_crtc *crtc_req = data;
struct drm_crtc *crtc;
- void *r_base, *g_base, *b_base;
- int size;
- int ret = 0;
+ struct drm_connector **connector_set = NULL, *connector;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_display_mode *mode = NULL;
+ struct drm_mode_set set;
+ uint32_t __user *set_connectors_ptr;
+ int ret;
+ int i;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
+ /*
+ * Universal plane src offsets are only 16.16, prevent havoc for
+ * drivers using universal plane code internally.
+ */
+ if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000)
+ return -ERANGE;
+
drm_modeset_lock_all(dev);
- crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
+ 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;
}
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
- /* memcpy into gamma store */
- if (crtc_lut->gamma_size != crtc->gamma_size) {
- ret = -EINVAL;
- goto out;
- }
-
- size = crtc_lut->gamma_size * (sizeof(uint16_t));
- r_base = crtc->gamma_store;
- if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
- ret = -EFAULT;
- goto out;
- }
-
- g_base = r_base + size;
- if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
- ret = -EFAULT;
- goto out;
- }
-
- b_base = g_base + size;
- if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
- ret = -EFAULT;
- goto out;
- }
-out:
- drm_modeset_unlock_all(dev);
- return ret;
-}
-
-/**
- * drm_mode_page_flip_ioctl - schedule an asynchronous fb update
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * This schedules an asynchronous update on a given CRTC, called page flip.
- * Optionally a drm event is generated to signal the completion of the event.
- * Generic drivers cannot assume that a pageflip with changed framebuffer
- * properties (including driver specific metadata like tiling layout) will work,
- * but some drivers support e.g. pixel format changes through the pageflip
- * ioctl.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-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_crtc *crtc;
- struct drm_framebuffer *fb = NULL;
- struct drm_pending_vblank_event *e = NULL;
- int ret = -EINVAL;
-
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
- page_flip->reserved != 0)
- return -EINVAL;
+ if (crtc_req->mode_valid) {
+ /* If we have a mode we need a framebuffer. */
+ /* If we pass -1, set the mode with the currently bound fb */
+ if (crtc_req->fb_id == -1) {
+ if (!crtc->primary->fb) {
+ DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ fb = crtc->primary->fb;
+ /* Make refcounting symmetric with the lookup path. */
+ drm_framebuffer_reference(fb);
+ } else {
+ fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
+ if (!fb) {
+ DRM_DEBUG_KMS("Unknown FB ID%d\n",
+ crtc_req->fb_id);
+ ret = -ENOENT;
+ goto out;
+ }
+ }
- if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
- return -EINVAL;
+ mode = drm_mode_create(dev);
+ if (!mode) {
+ ret = -ENOMEM;
+ goto out;
+ }
- crtc = drm_crtc_find(dev, page_flip->crtc_id);
- if (!crtc)
- return -ENOENT;
+ ret = drm_mode_convert_umode(mode, &crtc_req->mode);
+ if (ret) {
+ DRM_DEBUG_KMS("Invalid mode\n");
+ goto out;
+ }
- drm_modeset_lock_crtc(crtc, crtc->primary);
- if (crtc->primary->fb == NULL) {
- /* The framebuffer is currently unbound, presumably
- * due to a hotplug event, that userspace has not
- * yet discovered.
+ /*
+ * Check whether the primary plane supports the fb pixel format.
+ * Drivers not implementing the universal planes API use a
+ * default formats list provided by the DRM core which doesn't
+ * match real hardware capabilities. Skip the check in that
+ * case.
*/
- ret = -EBUSY;
- goto out;
- }
+ if (!crtc->primary->format_default) {
+ ret = drm_plane_check_pixel_format(crtc->primary,
+ fb->pixel_format);
+ if (ret) {
+ char *format_name = drm_get_format_name(fb->pixel_format);
+ DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name);
+ kfree(format_name);
+ goto out;
+ }
+ }
- if (crtc->funcs->page_flip == NULL)
- goto out;
+ ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
+ mode, fb);
+ if (ret)
+ goto out;
- fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
- if (!fb) {
- ret = -ENOENT;
- goto out;
}
- if (crtc->state) {
- const struct drm_plane_state *state = crtc->primary->state;
-
- ret = check_src_coords(state->src_x, state->src_y,
- state->src_w, state->src_h, fb);
- } else {
- ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
- }
- if (ret)
+ if (crtc_req->count_connectors == 0 && mode) {
+ DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
+ ret = -EINVAL;
goto out;
+ }
- if (crtc->primary->fb->pixel_format != fb->pixel_format) {
- DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
+ if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
+ DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
+ crtc_req->count_connectors);
ret = -EINVAL;
goto out;
}
- if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
- e = kzalloc(sizeof *e, GFP_KERNEL);
- if (!e) {
- ret = -ENOMEM;
+ if (crtc_req->count_connectors > 0) {
+ u32 out_id;
+
+ /* Avoid unbounded kernel memory allocation */
+ if (crtc_req->count_connectors > config->num_connector) {
+ ret = -EINVAL;
goto out;
}
- e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
- e->event.base.length = sizeof(e->event);
- e->event.user_data = page_flip->user_data;
- ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base);
- if (ret) {
- kfree(e);
+
+ connector_set = kmalloc_array(crtc_req->count_connectors,
+ sizeof(struct drm_connector *),
+ GFP_KERNEL);
+ if (!connector_set) {
+ ret = -ENOMEM;
goto out;
}
- }
- crtc->primary->old_fb = crtc->primary->fb;
- ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
- if (ret) {
- if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT)
- drm_event_cancel_free(dev, &e->base);
- /* Keep the old fb, don't unref it. */
- crtc->primary->old_fb = NULL;
- } else {
- crtc->primary->fb = fb;
- /* Unref only the old framebuffer. */
- fb = NULL;
+ for (i = 0; i < crtc_req->count_connectors; i++) {
+ connector_set[i] = NULL;
+ set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
+ if (get_user(out_id, &set_connectors_ptr[i])) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ connector = drm_connector_lookup(dev, out_id);
+ if (!connector) {
+ DRM_DEBUG_KMS("Connector id %d unknown\n",
+ out_id);
+ ret = -ENOENT;
+ goto out;
+ }
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id,
+ connector->name);
+
+ connector_set[i] = connector;
+ }
}
+ set.crtc = crtc;
+ set.x = crtc_req->x;
+ set.y = crtc_req->y;
+ set.mode = mode;
+ set.connectors = connector_set;
+ set.num_connectors = crtc_req->count_connectors;
+ set.fb = fb;
+ ret = drm_mode_set_config_internal(&set);
+
out:
if (fb)
drm_framebuffer_unreference(fb);
- if (crtc->primary->old_fb)
- drm_framebuffer_unreference(crtc->primary->old_fb);
- crtc->primary->old_fb = NULL;
- drm_modeset_unlock_crtc(crtc);
+
+ if (connector_set) {
+ for (i = 0; i < crtc_req->count_connectors; i++) {
+ if (connector_set[i])
+ drm_connector_unreference(connector_set[i]);
+ }
+ }
+ kfree(connector_set);
+ drm_mode_destroy(dev, mode);
+ drm_modeset_unlock_all(dev);
+ return ret;
+}
+
+int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
+ struct drm_property *property,
+ uint64_t value)
+{
+ int ret = -EINVAL;
+ struct drm_crtc *crtc = obj_to_crtc(obj);
+
+ if (crtc->funcs->set_property)
+ ret = crtc->funcs->set_property(crtc, property, value);
+ if (!ret)
+ drm_object_property_set_value(obj, property, value);
return ret;
}
return dev->driver->dumb_destroy(file_priv, dev, args->handle);
}
-/**
- * drm_rotation_simplify() - Try to simplify the rotation
- * @rotation: Rotation to be simplified
- * @supported_rotations: Supported rotations
- *
- * Attempt to simplify the rotation to a form that is supported.
- * Eg. if the hardware supports everything except DRM_REFLECT_X
- * one could call this function like this:
- *
- * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) |
- * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) |
- * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y));
- *
- * to eliminate the DRM_ROTATE_X flag. Depending on what kind of
- * transforms the hardware supports, this function may not
- * be able to produce a supported transform, so the caller should
- * check the result afterwards.
- */
-unsigned int drm_rotation_simplify(unsigned int rotation,
- unsigned int supported_rotations)
-{
- if (rotation & ~supported_rotations) {
- rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y);
- rotation = (rotation & DRM_REFLECT_MASK) |
- BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4);
- }
-
- return rotation;
-}
-EXPORT_SYMBOL(drm_rotation_simplify);
-
/**
* drm_mode_config_init - initialize DRM mode_configuration structure
* @dev: DRM device
}
EXPORT_SYMBOL(drm_mode_config_cleanup);
-struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
- unsigned int supported_rotations)
-{
- static const struct drm_prop_enum_list props[] = {
- { DRM_ROTATE_0, "rotate-0" },
- { DRM_ROTATE_90, "rotate-90" },
- { DRM_ROTATE_180, "rotate-180" },
- { DRM_ROTATE_270, "rotate-270" },
- { DRM_REFLECT_X, "reflect-x" },
- { DRM_REFLECT_Y, "reflect-y" },
- };
-
- return drm_property_create_bitmask(dev, 0, "rotation",
- props, ARRAY_SIZE(props),
- supported_rotations);
-}
-EXPORT_SYMBOL(drm_mode_create_rotation_property);
-
/**
* DOC: Tile group
*
return tg;
}
EXPORT_SYMBOL(drm_mode_create_tile_group);
-
-/**
- * drm_crtc_enable_color_mgmt - enable color management properties
- * @crtc: DRM CRTC
- * @degamma_lut_size: the size of the degamma lut (before CSC)
- * @has_ctm: whether to attach ctm_property for CSC matrix
- * @gamma_lut_size: the size of the gamma lut (after CSC)
- *
- * This function lets the driver enable the color correction
- * properties on a CRTC. This includes 3 degamma, csc and gamma
- * properties that userspace can set and 2 size properties to inform
- * the userspace of the lut sizes. Each of the properties are
- * optional. The gamma and degamma properties are only attached if
- * their size is not 0 and ctm_property is only attached if has_ctm is
- * true.
- */
-void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
- uint degamma_lut_size,
- bool has_ctm,
- uint gamma_lut_size)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_mode_config *config = &dev->mode_config;
-
- if (degamma_lut_size) {
- drm_object_attach_property(&crtc->base,
- config->degamma_lut_property, 0);
- drm_object_attach_property(&crtc->base,
- config->degamma_lut_size_property,
- degamma_lut_size);
- }
-
- if (has_ctm)
- drm_object_attach_property(&crtc->base,
- config->ctm_property, 0);
-
- if (gamma_lut_size) {
- drm_object_attach_property(&crtc->base,
- config->gamma_lut_property, 0);
- drm_object_attach_property(&crtc->base,
- config->gamma_lut_size_property,
- gamma_lut_size);
- }
-}
-EXPORT_SYMBOL(drm_crtc_enable_color_mgmt);
projects / cascardo / linux.git / blobdiff