509 lines
15 KiB
C
509 lines
15 KiB
C
/*
|
|
* Copyright (c) 2016 Intel Corporation
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that copyright
|
|
* notice and this permission notice appear in supporting documentation, and
|
|
* that the name of the copyright holders not be used in advertising or
|
|
* publicity pertaining to distribution of the software without specific,
|
|
* written prior permission. The copyright holders make no representations
|
|
* about the suitability of this software for any purpose. It is provided "as
|
|
* is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
|
* OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <linux/uaccess.h>
|
|
|
|
#include <drm/drm_drv.h>
|
|
#include <drm/drm_encoder.h>
|
|
#include <drm/drm_file.h>
|
|
#include <drm/drm_mode_config.h>
|
|
#include <drm/drm_print.h>
|
|
|
|
#include "drm_crtc_internal.h"
|
|
#include "drm_internal.h"
|
|
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* 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 drm_framebuffer *fb;
|
|
struct drm_connector *connector;
|
|
struct drm_crtc *crtc;
|
|
struct drm_encoder *encoder;
|
|
int count, ret = 0;
|
|
uint32_t __user *fb_id;
|
|
uint32_t __user *crtc_id;
|
|
uint32_t __user *connector_id;
|
|
uint32_t __user *encoder_id;
|
|
struct drm_connector_list_iter conn_iter;
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -EOPNOTSUPP;
|
|
|
|
mutex_lock(&file_priv->fbs_lock);
|
|
count = 0;
|
|
fb_id = u64_to_user_ptr(card_res->fb_id_ptr);
|
|
list_for_each_entry(fb, &file_priv->fbs, filp_head) {
|
|
if (count < card_res->count_fbs &&
|
|
put_user(fb->base.id, fb_id + count)) {
|
|
mutex_unlock(&file_priv->fbs_lock);
|
|
return -EFAULT;
|
|
}
|
|
count++;
|
|
}
|
|
card_res->count_fbs = count;
|
|
mutex_unlock(&file_priv->fbs_lock);
|
|
|
|
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;
|
|
|
|
count = 0;
|
|
crtc_id = u64_to_user_ptr(card_res->crtc_id_ptr);
|
|
drm_for_each_crtc(crtc, dev) {
|
|
if (drm_lease_held(file_priv, crtc->base.id)) {
|
|
if (count < card_res->count_crtcs &&
|
|
put_user(crtc->base.id, crtc_id + count))
|
|
return -EFAULT;
|
|
count++;
|
|
}
|
|
}
|
|
card_res->count_crtcs = count;
|
|
|
|
count = 0;
|
|
encoder_id = u64_to_user_ptr(card_res->encoder_id_ptr);
|
|
drm_for_each_encoder(encoder, dev) {
|
|
if (count < card_res->count_encoders &&
|
|
put_user(encoder->base.id, encoder_id + count))
|
|
return -EFAULT;
|
|
count++;
|
|
}
|
|
card_res->count_encoders = count;
|
|
|
|
drm_connector_list_iter_begin(dev, &conn_iter);
|
|
count = 0;
|
|
connector_id = u64_to_user_ptr(card_res->connector_id_ptr);
|
|
drm_for_each_connector_iter(connector, &conn_iter) {
|
|
/* only expose writeback connectors if userspace understands them */
|
|
if (!file_priv->writeback_connectors &&
|
|
(connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK))
|
|
continue;
|
|
|
|
if (drm_lease_held(file_priv, connector->base.id)) {
|
|
if (count < card_res->count_connectors &&
|
|
put_user(connector->base.id, connector_id + count)) {
|
|
drm_connector_list_iter_end(&conn_iter);
|
|
return -EFAULT;
|
|
}
|
|
count++;
|
|
}
|
|
}
|
|
card_res->count_connectors = count;
|
|
drm_connector_list_iter_end(&conn_iter);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* drm_mode_config_reset - call ->reset callbacks
|
|
* @dev: drm device
|
|
*
|
|
* This functions calls all the crtc's, encoder's and connector's ->reset
|
|
* callback. Drivers can use this in e.g. their driver load or resume code to
|
|
* reset hardware and software state.
|
|
*/
|
|
void drm_mode_config_reset(struct drm_device *dev)
|
|
{
|
|
struct drm_crtc *crtc;
|
|
struct drm_plane *plane;
|
|
struct drm_encoder *encoder;
|
|
struct drm_connector *connector;
|
|
struct drm_connector_list_iter conn_iter;
|
|
|
|
drm_for_each_plane(plane, dev)
|
|
if (plane->funcs->reset)
|
|
plane->funcs->reset(plane);
|
|
|
|
drm_for_each_crtc(crtc, dev)
|
|
if (crtc->funcs->reset)
|
|
crtc->funcs->reset(crtc);
|
|
|
|
drm_for_each_encoder(encoder, dev)
|
|
if (encoder->funcs->reset)
|
|
encoder->funcs->reset(encoder);
|
|
|
|
drm_connector_list_iter_begin(dev, &conn_iter);
|
|
drm_for_each_connector_iter(connector, &conn_iter)
|
|
if (connector->funcs->reset)
|
|
connector->funcs->reset(connector);
|
|
drm_connector_list_iter_end(&conn_iter);
|
|
}
|
|
EXPORT_SYMBOL(drm_mode_config_reset);
|
|
|
|
/*
|
|
* Global properties
|
|
*/
|
|
static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
|
|
{ DRM_PLANE_TYPE_OVERLAY, "Overlay" },
|
|
{ DRM_PLANE_TYPE_PRIMARY, "Primary" },
|
|
{ DRM_PLANE_TYPE_CURSOR, "Cursor" },
|
|
};
|
|
|
|
static int drm_mode_create_standard_properties(struct drm_device *dev)
|
|
{
|
|
struct drm_property *prop;
|
|
int ret;
|
|
|
|
ret = drm_connector_create_standard_properties(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
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_signed_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
"IN_FENCE_FD", -1, INT_MAX);
|
|
if (!prop)
|
|
return -ENOMEM;
|
|
dev->mode_config.prop_in_fence_fd = prop;
|
|
|
|
prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
|
|
"OUT_FENCE_PTR", 0, U64_MAX);
|
|
if (!prop)
|
|
return -ENOMEM;
|
|
dev->mode_config.prop_out_fence_ptr = 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(dev,
|
|
DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
|
|
"FB_DAMAGE_CLIPS", 0);
|
|
if (!prop)
|
|
return -ENOMEM;
|
|
dev->mode_config.prop_fb_damage_clips = 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_bool(dev, 0,
|
|
"VRR_ENABLED");
|
|
if (!prop)
|
|
return -ENOMEM;
|
|
dev->mode_config.prop_vrr_enabled = 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;
|
|
|
|
prop = drm_property_create(dev,
|
|
DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB,
|
|
"IN_FORMATS", 0);
|
|
if (!prop)
|
|
return -ENOMEM;
|
|
dev->mode_config.modifiers_property = prop;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* drm_mode_config_init - initialize DRM mode_configuration structure
|
|
* @dev: DRM device
|
|
*
|
|
* Initialize @dev's mode_config structure, used for tracking the graphics
|
|
* configuration of @dev.
|
|
*
|
|
* Since this initializes the modeset locks, no locking is possible. Which is no
|
|
* problem, since this should happen single threaded at init time. It is the
|
|
* driver's problem to ensure this guarantee.
|
|
*
|
|
*/
|
|
void drm_mode_config_init(struct drm_device *dev)
|
|
{
|
|
mutex_init(&dev->mode_config.mutex);
|
|
drm_modeset_lock_init(&dev->mode_config.connection_mutex);
|
|
mutex_init(&dev->mode_config.idr_mutex);
|
|
mutex_init(&dev->mode_config.fb_lock);
|
|
mutex_init(&dev->mode_config.blob_lock);
|
|
INIT_LIST_HEAD(&dev->mode_config.fb_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.crtc_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.connector_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.encoder_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.property_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.plane_list);
|
|
INIT_LIST_HEAD(&dev->mode_config.privobj_list);
|
|
idr_init(&dev->mode_config.object_idr);
|
|
idr_init(&dev->mode_config.tile_idr);
|
|
ida_init(&dev->mode_config.connector_ida);
|
|
spin_lock_init(&dev->mode_config.connector_list_lock);
|
|
|
|
init_llist_head(&dev->mode_config.connector_free_list);
|
|
INIT_WORK(&dev->mode_config.connector_free_work, drm_connector_free_work_fn);
|
|
|
|
drm_mode_create_standard_properties(dev);
|
|
|
|
/* Just to be sure */
|
|
dev->mode_config.num_fb = 0;
|
|
dev->mode_config.num_connector = 0;
|
|
dev->mode_config.num_crtc = 0;
|
|
dev->mode_config.num_encoder = 0;
|
|
dev->mode_config.num_total_plane = 0;
|
|
}
|
|
EXPORT_SYMBOL(drm_mode_config_init);
|
|
|
|
/**
|
|
* drm_mode_config_cleanup - free up DRM mode_config info
|
|
* @dev: DRM device
|
|
*
|
|
* Free up all the connectors and CRTCs associated with this DRM device, then
|
|
* free up the framebuffers and associated buffer objects.
|
|
*
|
|
* Note that since this /should/ happen single-threaded at driver/device
|
|
* teardown time, no locking is required. It's the driver's job to ensure that
|
|
* this guarantee actually holds true.
|
|
*
|
|
* FIXME: cleanup any dangling user buffer objects too
|
|
*/
|
|
void drm_mode_config_cleanup(struct drm_device *dev)
|
|
{
|
|
struct drm_connector *connector;
|
|
struct drm_connector_list_iter conn_iter;
|
|
struct drm_crtc *crtc, *ct;
|
|
struct drm_encoder *encoder, *enct;
|
|
struct drm_framebuffer *fb, *fbt;
|
|
struct drm_property *property, *pt;
|
|
struct drm_property_blob *blob, *bt;
|
|
struct drm_plane *plane, *plt;
|
|
|
|
list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
|
|
head) {
|
|
encoder->funcs->destroy(encoder);
|
|
}
|
|
|
|
drm_connector_list_iter_begin(dev, &conn_iter);
|
|
drm_for_each_connector_iter(connector, &conn_iter) {
|
|
/* drm_connector_list_iter holds an full reference to the
|
|
* current connector itself, which means it is inherently safe
|
|
* against unreferencing the current connector - but not against
|
|
* deleting it right away. */
|
|
drm_connector_put(connector);
|
|
}
|
|
drm_connector_list_iter_end(&conn_iter);
|
|
/* connector_iter drops references in a work item. */
|
|
flush_work(&dev->mode_config.connector_free_work);
|
|
if (WARN_ON(!list_empty(&dev->mode_config.connector_list))) {
|
|
drm_connector_list_iter_begin(dev, &conn_iter);
|
|
drm_for_each_connector_iter(connector, &conn_iter)
|
|
DRM_ERROR("connector %s leaked!\n", connector->name);
|
|
drm_connector_list_iter_end(&conn_iter);
|
|
}
|
|
|
|
list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
|
|
head) {
|
|
drm_property_destroy(dev, property);
|
|
}
|
|
|
|
list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
|
|
head) {
|
|
plane->funcs->destroy(plane);
|
|
}
|
|
|
|
list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
|
|
crtc->funcs->destroy(crtc);
|
|
}
|
|
|
|
list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
|
|
head_global) {
|
|
drm_property_blob_put(blob);
|
|
}
|
|
|
|
/*
|
|
* Single-threaded teardown context, so it's not required to grab the
|
|
* fb_lock to protect against concurrent fb_list access. Contrary, it
|
|
* would actually deadlock with the drm_framebuffer_cleanup function.
|
|
*
|
|
* Also, if there are any framebuffers left, that's a driver leak now,
|
|
* so politely WARN about this.
|
|
*/
|
|
WARN_ON(!list_empty(&dev->mode_config.fb_list));
|
|
list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
|
|
struct drm_printer p = drm_debug_printer("[leaked fb]");
|
|
drm_printf(&p, "framebuffer[%u]:\n", fb->base.id);
|
|
drm_framebuffer_print_info(&p, 1, fb);
|
|
drm_framebuffer_free(&fb->base.refcount);
|
|
}
|
|
|
|
ida_destroy(&dev->mode_config.connector_ida);
|
|
idr_destroy(&dev->mode_config.tile_idr);
|
|
idr_destroy(&dev->mode_config.object_idr);
|
|
drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
|
|
}
|
|
EXPORT_SYMBOL(drm_mode_config_cleanup);
|