/*
* 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_framebuffer.h>
#include <drm/drm_managed.h>
#include <drm/drm_mode_config.h>
#include <drm/drm_print.h>
#include <linux/dma-resv.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 && 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;
prop = drm_property_create(dev,
DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB,
"SIZE_HINTS", 0);
if (!prop)
return -ENOMEM;
dev->mode_config.size_hints_property = prop;
return 0;
}
static void drm_mode_config_init_release(struct drm_device *dev, void *ptr)
{
drm_mode_config_cleanup(dev);
}
/**
* drmm_mode_config_init - managed DRM mode_configuration structure
* initialization
* @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.
*
* Cleanup is automatically handled through registering drm_mode_config_cleanup
* with drmm_add_action().
*
* Returns: 0 on success, negative error value on failure.
*/
int drmm_mode_config_init(struct drm_device *dev)
{
int ret;
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_base(&dev->mode_config.object_idr, 1);
idr_init_base(&dev->mode_config.tile_idr, 1);
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);
ret = drm_mode_create_standard_properties(dev);
if (ret) {
drm_mode_config_cleanup(dev);
return ret;
}
/* 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;
if (IS_ENABLED(CONFIG_LOCKDEP)) {
struct drm_modeset_acquire_ctx modeset_ctx;
struct ww_acquire_ctx resv_ctx;
struct dma_resv resv;
int ret;
dma_resv_init(&resv);
drm_modeset_acquire_init(&modeset_ctx, 0);
ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
&modeset_ctx);
if (ret == -EDEADLK)
ret = drm_modeset_backoff(&modeset_ctx);
might_fault();
ww_acquire_init(&resv_ctx, &reservation_ww_class);
ret = dma_resv_lock(&resv, &resv_ctx);
if (ret == -EDEADLK)
dma_resv_lock_slow(&resv, &resv_ctx);
dma_resv_unlock(&resv);
ww_acquire_fini(&resv_ctx);
drm_modeset_drop_locks(&modeset_ctx);
drm_modeset_acquire_fini(&modeset_ctx);
dma_resv_fini(&resv);
}
return drmm_add_action_or_reset(dev, drm_mode_config_init_release,
NULL);
}
EXPORT_SYMBOL(drmm_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: With the managed drmm_mode_config_init() it is no longer necessary for
* drivers to explicitly call this function.
*/
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_dbg_printer(dev, DRM_UT_KMS, "[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);
static u32 full_encoder_mask(struct drm_device *dev)
{
struct drm_encoder *encoder;
u32 encoder_mask = 0;
drm_for_each_encoder(encoder, dev)
encoder_mask |= drm_encoder_mask(encoder);
return encoder_mask;
}
/*
* For some reason we want the encoder itself included in
* possible_clones. Make life easy for drivers by allowing them
* to leave possible_clones unset if no cloning is possible.
*/
static void fixup_encoder_possible_clones(struct drm_encoder *encoder)
{
if (encoder->possible_clones == 0)
encoder->possible_clones = drm_encoder_mask(encoder);
}
static void validate_encoder_possible_clones(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
u32 encoder_mask = full_encoder_mask(dev);
struct drm_encoder *other;
drm_for_each_encoder(other, dev) {
WARN(!!(encoder->possible_clones & drm_encoder_mask(other)) !=
!!(other->possible_clones & drm_encoder_mask(encoder)),
"possible_clones mismatch: "
"[ENCODER:%d:%s] mask=0x%x possible_clones=0x%x vs. "
"[ENCODER:%d:%s] mask=0x%x possible_clones=0x%x\n",
encoder->base.id, encoder->name,
drm_encoder_mask(encoder), encoder->possible_clones,
other->base.id, other->name,
drm_encoder_mask(other), other->possible_clones);
}
WARN((encoder->possible_clones & drm_encoder_mask(encoder)) == 0 ||
(encoder->possible_clones & ~encoder_mask) != 0,
"Bogus possible_clones: "
"[ENCODER:%d:%s] possible_clones=0x%x (full encoder mask=0x%x)\n",
encoder->base.id, encoder->name,
encoder->possible_clones, encoder_mask);
}
static u32 full_crtc_mask(struct drm_device *dev)
{
struct drm_crtc *crtc;
u32 crtc_mask = 0;
drm_for_each_crtc(crtc, dev)
crtc_mask |= drm_crtc_mask(crtc);
return crtc_mask;
}
static void validate_encoder_possible_crtcs(struct drm_encoder *encoder)
{
u32 crtc_mask = full_crtc_mask(encoder->dev);
WARN((encoder->possible_crtcs & crtc_mask) == 0 ||
(encoder->possible_crtcs & ~crtc_mask) != 0,
"Bogus possible_crtcs: "
"[ENCODER:%d:%s] possible_crtcs=0x%x (full crtc mask=0x%x)\n",
encoder->base.id, encoder->name,
encoder->possible_crtcs, crtc_mask);
}
void drm_mode_config_validate(struct drm_device *dev)
{
struct drm_encoder *encoder;
struct drm_crtc *crtc;
struct drm_plane *plane;
u32 primary_with_crtc = 0, cursor_with_crtc = 0;
unsigned int num_primary = 0;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return;
drm_for_each_encoder(encoder, dev)
fixup_encoder_possible_clones(encoder);
drm_for_each_encoder(encoder, dev) {
validate_encoder_possible_clones(encoder);
validate_encoder_possible_crtcs(encoder);
}
drm_for_each_crtc(crtc, dev) {
WARN(!crtc->primary, "Missing primary plane on [CRTC:%d:%s]\n",
crtc->base.id, crtc->name);
WARN(crtc->cursor && crtc->funcs->cursor_set,
"[CRTC:%d:%s] must not have both a cursor plane and a cursor_set func",
crtc->base.id, crtc->name);
WARN(crtc->cursor && crtc->funcs->cursor_set2,
"[CRTC:%d:%s] must not have both a cursor plane and a cursor_set2 func",
crtc->base.id, crtc->name);
WARN(crtc->cursor && crtc->funcs->cursor_move,
"[CRTC:%d:%s] must not have both a cursor plane and a cursor_move func",
crtc->base.id, crtc->name);
if (crtc->primary) {
WARN(!(crtc->primary->possible_crtcs & drm_crtc_mask(crtc)),
"Bogus primary plane possible_crtcs: [PLANE:%d:%s] must be compatible with [CRTC:%d:%s]\n",
crtc->primary->base.id, crtc->primary->name,
crtc->base.id, crtc->name);
WARN(primary_with_crtc & drm_plane_mask(crtc->primary),
"Primary plane [PLANE:%d:%s] used for multiple CRTCs",
crtc->primary->base.id, crtc->primary->name);
primary_with_crtc |= drm_plane_mask(crtc->primary);
}
if (crtc->cursor) {
WARN(!(crtc->cursor->possible_crtcs & drm_crtc_mask(crtc)),
"Bogus cursor plane possible_crtcs: [PLANE:%d:%s] must be compatible with [CRTC:%d:%s]\n",
crtc->cursor->base.id, crtc->cursor->name,
crtc->base.id, crtc->name);
WARN(cursor_with_crtc & drm_plane_mask(crtc->cursor),
"Cursor plane [PLANE:%d:%s] used for multiple CRTCs",
crtc->cursor->base.id, crtc->cursor->name);
cursor_with_crtc |= drm_plane_mask(crtc->cursor);
}
}
drm_for_each_plane(plane, dev) {
if (plane->type == DRM_PLANE_TYPE_PRIMARY)
num_primary++;
}
WARN(num_primary != dev->mode_config.num_crtc,
"Must have as many primary planes as there are CRTCs, but have %u primary planes and %u CRTCs",
num_primary, dev->mode_config.num_crtc);
}
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