Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 957 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
new file mode 100644
index 000000000..df9bf3c92
--- /dev/null
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -0,0 +1,957 @@
+/*
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ * Copyright (c) 2008 Red Hat Inc.
+ *
+ * DRM core CRTC related functions
+ *
+ * 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.
+ *
+ * Authors:
+ *      Keith Packard
+ *	Eric Anholt <eric@anholt.net>
+ *      Dave Airlie <airlied@linux.ie>
+ *      Jesse Barnes <jesse.barnes@intel.com>
+ */
+#include <linux/ctype.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <linux/dma-fence.h>
+#include <linux/uaccess.h>
+#include <drm/drm_blend.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_modeset_lock.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_auth.h>
+#include <drm/drm_debugfs_crc.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_print.h>
+#include <drm/drm_file.h>
+
+#include "drm_crtc_internal.h"
+#include "drm_internal.h"
+
+/**
+ * DOC: overview
+ *
+ * A CRTC represents the overall display pipeline. It receives pixel data from
+ * &drm_plane and blends them together. The &drm_display_mode is also attached
+ * to the CRTC, specifying display timings. On the output side the data is fed
+ * to one or more &drm_encoder, which are then each connected to one
+ * &drm_connector.
+ *
+ * To create a CRTC, a KMS drivers allocates and zeroes an instances of
+ * &struct drm_crtc (possibly as part of a larger structure) and registers it
+ * with a call to drm_crtc_init_with_planes().
+ *
+ * The CRTC is also the entry point for legacy modeset operations, see
+ * &drm_crtc_funcs.set_config, legacy plane operations, see
+ * &drm_crtc_funcs.page_flip and &drm_crtc_funcs.cursor_set2, and other legacy
+ * operations like &drm_crtc_funcs.gamma_set. For atomic drivers all these
+ * features are controlled through &drm_property and
+ * &drm_mode_config_funcs.atomic_check.
+ */
+
+/**
+ * drm_crtc_from_index - find the registered CRTC at an index
+ * @dev: DRM device
+ * @idx: index of registered CRTC to find for
+ *
+ * Given a CRTC index, return the registered CRTC from DRM device's
+ * list of CRTCs with matching index. This is the inverse of drm_crtc_index().
+ * It's useful in the vblank callbacks (like &drm_driver.enable_vblank or
+ * &drm_driver.disable_vblank), since that still deals with indices instead
+ * of pointers to &struct drm_crtc."
+ */
+struct drm_crtc *drm_crtc_from_index(struct drm_device *dev, int idx)
+{
+	struct drm_crtc *crtc;
+
+	drm_for_each_crtc(crtc, dev)
+		if (idx == crtc->index)
+			return crtc;
+
+	return NULL;
+}
+EXPORT_SYMBOL(drm_crtc_from_index);
+
+int drm_crtc_force_disable(struct drm_crtc *crtc)
+{
+	struct drm_mode_set set = {
+		.crtc = crtc,
+	};
+
+	WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev));
+
+	return drm_mode_set_config_internal(&set);
+}
+
+static unsigned int drm_num_crtcs(struct drm_device *dev)
+{
+	unsigned int num = 0;
+	struct drm_crtc *tmp;
+
+	drm_for_each_crtc(tmp, dev) {
+		num++;
+	}
+
+	return num;
+}
+
+int drm_crtc_register_all(struct drm_device *dev)
+{
+	struct drm_crtc *crtc;
+	int ret = 0;
+
+	drm_for_each_crtc(crtc, dev) {
+		drm_debugfs_crtc_add(crtc);
+
+		if (crtc->funcs->late_register)
+			ret = crtc->funcs->late_register(crtc);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+void drm_crtc_unregister_all(struct drm_device *dev)
+{
+	struct drm_crtc *crtc;
+
+	drm_for_each_crtc(crtc, dev) {
+		if (crtc->funcs->early_unregister)
+			crtc->funcs->early_unregister(crtc);
+		drm_debugfs_crtc_remove(crtc);
+	}
+}
+
+static int drm_crtc_crc_init(struct drm_crtc *crtc)
+{
+#ifdef CONFIG_DEBUG_FS
+	spin_lock_init(&crtc->crc.lock);
+	init_waitqueue_head(&crtc->crc.wq);
+	crtc->crc.source = kstrdup("auto", GFP_KERNEL);
+	if (!crtc->crc.source)
+		return -ENOMEM;
+#endif
+	return 0;
+}
+
+static void drm_crtc_crc_fini(struct drm_crtc *crtc)
+{
+#ifdef CONFIG_DEBUG_FS
+	kfree(crtc->crc.source);
+#endif
+}
+
+static const struct dma_fence_ops drm_crtc_fence_ops;
+
+static struct drm_crtc *fence_to_crtc(struct dma_fence *fence)
+{
+	BUG_ON(fence->ops != &drm_crtc_fence_ops);
+	return container_of(fence->lock, struct drm_crtc, fence_lock);
+}
+
+static const char *drm_crtc_fence_get_driver_name(struct dma_fence *fence)
+{
+	struct drm_crtc *crtc = fence_to_crtc(fence);
+
+	return crtc->dev->driver->name;
+}
+
+static const char *drm_crtc_fence_get_timeline_name(struct dma_fence *fence)
+{
+	struct drm_crtc *crtc = fence_to_crtc(fence);
+
+	return crtc->timeline_name;
+}
+
+static const struct dma_fence_ops drm_crtc_fence_ops = {
+	.get_driver_name = drm_crtc_fence_get_driver_name,
+	.get_timeline_name = drm_crtc_fence_get_timeline_name,
+};
+
+struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc)
+{
+	struct dma_fence *fence;
+
+	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
+	if (!fence)
+		return NULL;
+
+	dma_fence_init(fence, &drm_crtc_fence_ops, &crtc->fence_lock,
+		       crtc->fence_context, ++crtc->fence_seqno);
+
+	return fence;
+}
+
+/**
+ * DOC: standard CRTC properties
+ *
+ * DRM CRTCs have a few standardized properties:
+ *
+ * ACTIVE:
+ * 	Atomic property for setting the power state of the CRTC. When set to 1
+ * 	the CRTC will actively display content. When set to 0 the CRTC will be
+ * 	powered off. There is no expectation that user-space will reset CRTC
+ * 	resources like the mode and planes when setting ACTIVE to 0.
+ *
+ * 	User-space can rely on an ACTIVE change to 1 to never fail an atomic
+ * 	test as long as no other property has changed. If a change to ACTIVE
+ * 	fails an atomic test, this is a driver bug. For this reason setting
+ * 	ACTIVE to 0 must not release internal resources (like reserved memory
+ * 	bandwidth or clock generators).
+ *
+ * 	Note that the legacy DPMS property on connectors is internally routed
+ * 	to control this property for atomic drivers.
+ * MODE_ID:
+ * 	Atomic property for setting the CRTC display timings. The value is the
+ * 	ID of a blob containing the DRM mode info. To disable the CRTC,
+ * 	user-space must set this property to 0.
+ *
+ * 	Setting MODE_ID to 0 will release reserved resources for the CRTC.
+ * SCALING_FILTER:
+ * 	Atomic property for setting the scaling filter for CRTC scaler
+ *
+ * 	The value of this property can be one of the following:
+ *
+ * 	Default:
+ * 		Driver's default scaling filter
+ * 	Nearest Neighbor:
+ * 		Nearest Neighbor scaling filter
+ */
+
+__printf(6, 0)
+static int __drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
+				       struct drm_plane *primary,
+				       struct drm_plane *cursor,
+				       const struct drm_crtc_funcs *funcs,
+				       const char *name, va_list ap)
+{
+	struct drm_mode_config *config = &dev->mode_config;
+	int ret;
+
+	WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY);
+	WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR);
+
+	/* crtc index is used with 32bit bitmasks */
+	if (WARN_ON(config->num_crtc >= 32))
+		return -EINVAL;
+
+	WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
+		(!funcs->atomic_destroy_state ||
+		 !funcs->atomic_duplicate_state));
+
+	crtc->dev = dev;
+	crtc->funcs = funcs;
+
+	INIT_LIST_HEAD(&crtc->commit_list);
+	spin_lock_init(&crtc->commit_lock);
+
+	drm_modeset_lock_init(&crtc->mutex);
+	ret = drm_mode_object_add(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
+	if (ret)
+		return ret;
+
+	if (name) {
+		crtc->name = kvasprintf(GFP_KERNEL, name, ap);
+	} else {
+		crtc->name = kasprintf(GFP_KERNEL, "crtc-%d",
+				       drm_num_crtcs(dev));
+	}
+	if (!crtc->name) {
+		drm_mode_object_unregister(dev, &crtc->base);
+		return -ENOMEM;
+	}
+
+	crtc->fence_context = dma_fence_context_alloc(1);
+	spin_lock_init(&crtc->fence_lock);
+	snprintf(crtc->timeline_name, sizeof(crtc->timeline_name),
+		 "CRTC:%d-%s", crtc->base.id, crtc->name);
+
+	crtc->base.properties = &crtc->properties;
+
+	list_add_tail(&crtc->head, &config->crtc_list);
+	crtc->index = config->num_crtc++;
+
+	crtc->primary = primary;
+	crtc->cursor = cursor;
+	if (primary && !primary->possible_crtcs)
+		primary->possible_crtcs = drm_crtc_mask(crtc);
+	if (cursor && !cursor->possible_crtcs)
+		cursor->possible_crtcs = drm_crtc_mask(crtc);
+
+	ret = drm_crtc_crc_init(crtc);
+	if (ret) {
+		drm_mode_object_unregister(dev, &crtc->base);
+		return ret;
+	}
+
+	if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
+		drm_object_attach_property(&crtc->base, config->prop_active, 0);
+		drm_object_attach_property(&crtc->base, config->prop_mode_id, 0);
+		drm_object_attach_property(&crtc->base,
+					   config->prop_out_fence_ptr, 0);
+		drm_object_attach_property(&crtc->base,
+					   config->prop_vrr_enabled, 0);
+	}
+
+	return 0;
+}
+
+/**
+ * drm_crtc_init_with_planes - Initialise a new CRTC object with
+ *    specified primary and cursor planes.
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @primary: Primary plane for CRTC
+ * @cursor: Cursor plane for CRTC
+ * @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. 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.
+ * The &drm_crtc_funcs.destroy hook should call drm_crtc_cleanup() and kfree()
+ * the crtc structure. The crtc structure should not be allocated with
+ * devm_kzalloc().
+ *
+ * The @primary and @cursor planes are only relevant for legacy uAPI, see
+ * &drm_crtc.primary and &drm_crtc.cursor.
+ *
+ * Note: consider using drmm_crtc_alloc_with_planes() or
+ * drmm_crtc_init_with_planes() instead of drm_crtc_init_with_planes()
+ * to let the DRM managed resource infrastructure take care of cleanup
+ * and deallocation.
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
+			      struct drm_plane *primary,
+			      struct drm_plane *cursor,
+			      const struct drm_crtc_funcs *funcs,
+			      const char *name, ...)
+{
+	va_list ap;
+	int ret;
+
+	WARN_ON(!funcs->destroy);
+
+	va_start(ap, name);
+	ret = __drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					  name, ap);
+	va_end(ap);
+
+	return ret;
+}
+EXPORT_SYMBOL(drm_crtc_init_with_planes);
+
+static void drmm_crtc_init_with_planes_cleanup(struct drm_device *dev,
+					       void *ptr)
+{
+	struct drm_crtc *crtc = ptr;
+
+	drm_crtc_cleanup(crtc);
+}
+
+__printf(6, 0)
+static int __drmm_crtc_init_with_planes(struct drm_device *dev,
+					struct drm_crtc *crtc,
+					struct drm_plane *primary,
+					struct drm_plane *cursor,
+					const struct drm_crtc_funcs *funcs,
+					const char *name,
+					va_list args)
+{
+	int ret;
+
+	drm_WARN_ON(dev, funcs && funcs->destroy);
+
+	ret = __drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					  name, args);
+	if (ret)
+		return ret;
+
+	ret = drmm_add_action_or_reset(dev, drmm_crtc_init_with_planes_cleanup,
+				       crtc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/**
+ * drmm_crtc_init_with_planes - Initialise a new CRTC object with
+ *    specified primary and cursor planes.
+ * @dev: DRM device
+ * @crtc: CRTC object to init
+ * @primary: Primary plane for CRTC
+ * @cursor: Cursor plane for CRTC
+ * @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. 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.
+ *
+ * Cleanup is automatically handled through registering
+ * drmm_crtc_cleanup() with drmm_add_action(). The crtc structure should
+ * be allocated with drmm_kzalloc().
+ *
+ * The @drm_crtc_funcs.destroy hook must be NULL.
+ *
+ * The @primary and @cursor planes are only relevant for legacy uAPI, see
+ * &drm_crtc.primary and &drm_crtc.cursor.
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drmm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
+			       struct drm_plane *primary,
+			       struct drm_plane *cursor,
+			       const struct drm_crtc_funcs *funcs,
+			       const char *name, ...)
+{
+	va_list ap;
+	int ret;
+
+	va_start(ap, name);
+	ret = __drmm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					   name, ap);
+	va_end(ap);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL(drmm_crtc_init_with_planes);
+
+void *__drmm_crtc_alloc_with_planes(struct drm_device *dev,
+				    size_t size, size_t offset,
+				    struct drm_plane *primary,
+				    struct drm_plane *cursor,
+				    const struct drm_crtc_funcs *funcs,
+				    const char *name, ...)
+{
+	void *container;
+	struct drm_crtc *crtc;
+	va_list ap;
+	int ret;
+
+	if (WARN_ON(!funcs || funcs->destroy))
+		return ERR_PTR(-EINVAL);
+
+	container = drmm_kzalloc(dev, size, GFP_KERNEL);
+	if (!container)
+		return ERR_PTR(-ENOMEM);
+
+	crtc = container + offset;
+
+	va_start(ap, name);
+	ret = __drmm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs,
+					   name, ap);
+	va_end(ap);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return container;
+}
+EXPORT_SYMBOL(__drmm_crtc_alloc_with_planes);
+
+/**
+ * drm_crtc_cleanup - Clean up the core crtc usage
+ * @crtc: CRTC to cleanup
+ *
+ * This function cleans up @crtc and removes it from the DRM mode setting
+ * core. Note that the function does *not* free the crtc structure itself,
+ * this is the responsibility of the caller.
+ */
+void drm_crtc_cleanup(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+
+	/* Note that the crtc_list is considered to be static; should we
+	 * remove the drm_crtc at runtime we would have to decrement all
+	 * the indices on the drm_crtc after us in the crtc_list.
+	 */
+
+	drm_crtc_crc_fini(crtc);
+
+	kfree(crtc->gamma_store);
+	crtc->gamma_store = NULL;
+
+	drm_modeset_lock_fini(&crtc->mutex);
+
+	drm_mode_object_unregister(dev, &crtc->base);
+	list_del(&crtc->head);
+	dev->mode_config.num_crtc--;
+
+	WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state);
+	if (crtc->state && crtc->funcs->atomic_destroy_state)
+		crtc->funcs->atomic_destroy_state(crtc, crtc->state);
+
+	kfree(crtc->name);
+
+	memset(crtc, 0, sizeof(*crtc));
+}
+EXPORT_SYMBOL(drm_crtc_cleanup);
+
+/**
+ * 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;
+	struct drm_plane *plane;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EOPNOTSUPP;
+
+	crtc = drm_crtc_find(dev, file_priv, crtc_resp->crtc_id);
+	if (!crtc)
+		return -ENOENT;
+
+	plane = crtc->primary;
+
+	crtc_resp->gamma_size = crtc->gamma_size;
+
+	drm_modeset_lock(&plane->mutex, NULL);
+	if (plane->state && plane->state->fb)
+		crtc_resp->fb_id = plane->state->fb->base.id;
+	else if (!plane->state && plane->fb)
+		crtc_resp->fb_id = plane->fb->base.id;
+	else
+		crtc_resp->fb_id = 0;
+
+	if (plane->state) {
+		crtc_resp->x = plane->state->src_x >> 16;
+		crtc_resp->y = plane->state->src_y >> 16;
+	}
+	drm_modeset_unlock(&plane->mutex);
+
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state) {
+		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;
+		}
+	}
+	if (!file_priv->aspect_ratio_allowed)
+		crtc_resp->mode.flags &= ~DRM_MODE_FLAG_PIC_AR_MASK;
+	drm_modeset_unlock(&crtc->mutex);
+
+	return 0;
+}
+
+static int __drm_mode_set_config_internal(struct drm_mode_set *set,
+					  struct drm_modeset_acquire_ctx *ctx)
+{
+	struct drm_crtc *crtc = set->crtc;
+	struct drm_framebuffer *fb;
+	struct drm_crtc *tmp;
+	int ret;
+
+	WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev));
+
+	/*
+	 * 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) {
+		struct drm_plane *plane = tmp->primary;
+
+		plane->old_fb = plane->fb;
+	}
+
+	fb = set->fb;
+
+	ret = crtc->funcs->set_config(set, ctx);
+	if (ret == 0) {
+		struct drm_plane *plane = crtc->primary;
+
+		plane->crtc = fb ? crtc : NULL;
+		plane->fb = fb;
+	}
+
+	drm_for_each_crtc(tmp, crtc->dev) {
+		struct drm_plane *plane = tmp->primary;
+
+		if (plane->fb)
+			drm_framebuffer_get(plane->fb);
+		if (plane->old_fb)
+			drm_framebuffer_put(plane->old_fb);
+		plane->old_fb = NULL;
+	}
+
+	return ret;
+}
+
+/**
+ * drm_mode_set_config_internal - helper to call &drm_mode_config_funcs.set_config
+ * @set: modeset config to set
+ *
+ * This is a little helper to wrap internal calls to the
+ * &drm_mode_config_funcs.set_config driver interface. The only thing it adds is
+ * correct refcounting dance.
+ *
+ * This should only be used by non-atomic legacy drivers.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_set_config_internal(struct drm_mode_set *set)
+{
+	WARN_ON(drm_drv_uses_atomic_modeset(set->crtc->dev));
+
+	return __drm_mode_set_config_internal(set, NULL);
+}
+EXPORT_SYMBOL(drm_mode_set_config_internal);
+
+/**
+ * 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_mode_get_hv_timing(mode, &hdisplay, &vdisplay);
+
+	if (crtc->state &&
+	    drm_rotation_90_or_270(crtc->primary->state->rotation))
+		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_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_plane *plane;
+	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;
+	struct drm_modeset_acquire_ctx ctx;
+	int ret;
+	int i;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EOPNOTSUPP;
+
+	/*
+	 * 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;
+
+	crtc = drm_crtc_find(dev, file_priv, crtc_req->crtc_id);
+	if (!crtc) {
+		DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
+		return -ENOENT;
+	}
+	DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+	plane = crtc->primary;
+
+	/* allow disabling with the primary plane leased */
+	if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id))
+		return -EACCES;
+
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx,
+				   DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
+
+	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) {
+			struct drm_framebuffer *old_fb;
+
+			if (plane->state)
+				old_fb = plane->state->fb;
+			else
+				old_fb = plane->fb;
+
+			if (!old_fb) {
+				DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
+				ret = -EINVAL;
+				goto out;
+			}
+
+			fb = old_fb;
+			/* Make refcounting symmetric with the lookup path. */
+			drm_framebuffer_get(fb);
+		} else {
+			fb = drm_framebuffer_lookup(dev, file_priv, 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;
+		}
+		if (!file_priv->aspect_ratio_allowed &&
+		    (crtc_req->mode.flags & DRM_MODE_FLAG_PIC_AR_MASK) != DRM_MODE_FLAG_PIC_AR_NONE) {
+			DRM_DEBUG_KMS("Unexpected aspect-ratio flag bits\n");
+			ret = -EINVAL;
+			goto out;
+		}
+
+
+		ret = drm_mode_convert_umode(dev, mode, &crtc_req->mode);
+		if (ret) {
+			DRM_DEBUG_KMS("Invalid mode (ret=%d, status=%s)\n",
+				      ret, drm_get_mode_status_name(mode->status));
+			drm_mode_debug_printmodeline(mode);
+			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 (!plane->format_default) {
+			ret = drm_plane_check_pixel_format(plane,
+							   fb->format->format,
+							   fb->modifier);
+			if (ret) {
+				DRM_DEBUG_KMS("Invalid pixel format %p4cc, modifier 0x%llx\n",
+					      &fb->format->format,
+					      fb->modifier);
+				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, file_priv, 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;
+
+	if (drm_drv_uses_atomic_modeset(dev))
+		ret = crtc->funcs->set_config(&set, &ctx);
+	else
+		ret = __drm_mode_set_config_internal(&set, &ctx);
+
+out:
+	if (fb)
+		drm_framebuffer_put(fb);
+
+	if (connector_set) {
+		for (i = 0; i < crtc_req->count_connectors; i++) {
+			if (connector_set[i])
+				drm_connector_put(connector_set[i]);
+		}
+	}
+	kfree(connector_set);
+	drm_mode_destroy(dev, mode);
+
+	/* In case we need to retry... */
+	connector_set = NULL;
+	fb = NULL;
+	mode = NULL;
+
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+	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;
+}
+
+/**
+ * drm_crtc_create_scaling_filter_property - create a new scaling filter
+ * property
+ *
+ * @crtc: drm CRTC
+ * @supported_filters: bitmask of supported scaling filters, must include
+ *		       BIT(DRM_SCALING_FILTER_DEFAULT).
+ *
+ * This function lets driver to enable the scaling filter property on a given
+ * CRTC.
+ *
+ * RETURNS:
+ * Zero for success or -errno
+ */
+int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc,
+					    unsigned int supported_filters)
+{
+	struct drm_property *prop =
+		drm_create_scaling_filter_prop(crtc->dev, supported_filters);
+
+	if (IS_ERR(prop))
+		return PTR_ERR(prop);
+
+	drm_object_attach_property(&crtc->base, prop,
+				   DRM_SCALING_FILTER_DEFAULT);
+	crtc->scaling_filter_property = prop;
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property);