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().
  ...

17 files changed, 3769 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/core/Kbuild b/drivers/gpu/drm/nouveau/nvkm/core/Kbuild
new file mode 100644
index 000000000..e40712023
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/Kbuild
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: MIT
+nvkm-y := nvkm/core/client.o
+nvkm-y += nvkm/core/engine.o
+nvkm-y += nvkm/core/enum.o
+nvkm-y += nvkm/core/event.o
+nvkm-y += nvkm/core/firmware.o
+nvkm-y += nvkm/core/gpuobj.o
+nvkm-y += nvkm/core/intr.o
+nvkm-y += nvkm/core/ioctl.o
+nvkm-y += nvkm/core/memory.o
+nvkm-y += nvkm/core/mm.o
+nvkm-y += nvkm/core/object.o
+nvkm-y += nvkm/core/oproxy.o
+nvkm-y += nvkm/core/option.o
+nvkm-y += nvkm/core/ramht.o
+nvkm-y += nvkm/core/subdev.o
+nvkm-y += nvkm/core/uevent.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/client.c b/drivers/gpu/drm/nouveau/nvkm/core/client.c
new file mode 100644
index 000000000..ebdeb8eb9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/client.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/client.h>
+#include <core/device.h>
+#include <core/option.h>
+
+#include <nvif/class.h>
+#include <nvif/event.h>
+#include <nvif/if0000.h>
+#include <nvif/unpack.h>
+
+static int
+nvkm_uclient_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
+		 struct nvkm_object **pobject)
+{
+	union {
+		struct nvif_client_v0 v0;
+	} *args = argv;
+	struct nvkm_client *client;
+	int ret = -ENOSYS;
+
+	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))){
+		args->v0.name[sizeof(args->v0.name) - 1] = 0;
+		ret = nvkm_client_new(args->v0.name, args->v0.device, NULL,
+				      NULL, oclass->client->event, &client);
+		if (ret)
+			return ret;
+	} else
+		return ret;
+
+	client->object.client = oclass->client;
+	client->object.handle = oclass->handle;
+	client->object.route  = oclass->route;
+	client->object.token  = oclass->token;
+	client->object.object = oclass->object;
+	client->debug = oclass->client->debug;
+	*pobject = &client->object;
+	return 0;
+}
+
+static const struct nvkm_sclass
+nvkm_uclient_sclass = {
+	.oclass = NVIF_CLASS_CLIENT,
+	.minver = 0,
+	.maxver = 0,
+	.ctor = nvkm_uclient_new,
+};
+
+static const struct nvkm_object_func nvkm_client;
+struct nvkm_client *
+nvkm_client_search(struct nvkm_client *client, u64 handle)
+{
+	struct nvkm_object *object;
+
+	object = nvkm_object_search(client, handle, &nvkm_client);
+	if (IS_ERR(object))
+		return (void *)object;
+
+	return nvkm_client(object);
+}
+
+static int
+nvkm_client_mthd_devlist(struct nvkm_client *client, void *data, u32 size)
+{
+	union {
+		struct nvif_client_devlist_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(&client->object, "client devlist size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(&client->object, "client devlist vers %d count %d\n",
+			   args->v0.version, args->v0.count);
+		if (size == sizeof(args->v0.device[0]) * args->v0.count) {
+			ret = nvkm_device_list(args->v0.device, args->v0.count);
+			if (ret >= 0) {
+				args->v0.count = ret;
+				ret = 0;
+			}
+		} else {
+			ret = -EINVAL;
+		}
+	}
+
+	return ret;
+}
+
+static int
+nvkm_client_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	struct nvkm_client *client = nvkm_client(object);
+	switch (mthd) {
+	case NVIF_CLIENT_V0_DEVLIST:
+		return nvkm_client_mthd_devlist(client, data, size);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+static int
+nvkm_client_child_new(const struct nvkm_oclass *oclass,
+		      void *data, u32 size, struct nvkm_object **pobject)
+{
+	return oclass->base.ctor(oclass, data, size, pobject);
+}
+
+static int
+nvkm_client_child_get(struct nvkm_object *object, int index,
+		      struct nvkm_oclass *oclass)
+{
+	const struct nvkm_sclass *sclass;
+
+	switch (index) {
+	case 0: sclass = &nvkm_uclient_sclass; break;
+	case 1: sclass = &nvkm_udevice_sclass; break;
+	default:
+		return -EINVAL;
+	}
+
+	oclass->ctor = nvkm_client_child_new;
+	oclass->base = *sclass;
+	return 0;
+}
+
+static int
+nvkm_client_fini(struct nvkm_object *object, bool suspend)
+{
+	return 0;
+}
+
+static void *
+nvkm_client_dtor(struct nvkm_object *object)
+{
+	return nvkm_client(object);
+}
+
+static const struct nvkm_object_func
+nvkm_client = {
+	.dtor = nvkm_client_dtor,
+	.fini = nvkm_client_fini,
+	.mthd = nvkm_client_mthd,
+	.sclass = nvkm_client_child_get,
+};
+
+int
+nvkm_client_new(const char *name, u64 device, const char *cfg, const char *dbg,
+		int (*event)(u64, void *, u32), struct nvkm_client **pclient)
+{
+	struct nvkm_oclass oclass = { .base = nvkm_uclient_sclass };
+	struct nvkm_client *client;
+
+	if (!(client = *pclient = kzalloc(sizeof(*client), GFP_KERNEL)))
+		return -ENOMEM;
+	oclass.client = client;
+
+	nvkm_object_ctor(&nvkm_client, &oclass, &client->object);
+	snprintf(client->name, sizeof(client->name), "%s", name);
+	client->device = device;
+	client->debug = nvkm_dbgopt(dbg, "CLIENT");
+	client->objroot = RB_ROOT;
+	client->event = event;
+	INIT_LIST_HEAD(&client->umem);
+	spin_lock_init(&client->lock);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/engine.c b/drivers/gpu/drm/nouveau/nvkm/core/engine.c
new file mode 100644
index 000000000..36a31e9ee
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/engine.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/engine.h>
+#include <core/device.h>
+#include <core/option.h>
+
+#include <subdev/fb.h>
+
+bool
+nvkm_engine_chsw_load(struct nvkm_engine *engine)
+{
+	if (engine->func->chsw_load)
+		return engine->func->chsw_load(engine);
+	return false;
+}
+
+int
+nvkm_engine_reset(struct nvkm_engine *engine)
+{
+	if (engine->func->reset)
+		return engine->func->reset(engine);
+
+	nvkm_subdev_fini(&engine->subdev, false);
+	return nvkm_subdev_init(&engine->subdev);
+}
+
+void
+nvkm_engine_unref(struct nvkm_engine **pengine)
+{
+	struct nvkm_engine *engine = *pengine;
+
+	if (engine) {
+		nvkm_subdev_unref(&engine->subdev);
+		*pengine = NULL;
+	}
+}
+
+struct nvkm_engine *
+nvkm_engine_ref(struct nvkm_engine *engine)
+{
+	int ret;
+
+	if (engine) {
+		ret = nvkm_subdev_ref(&engine->subdev);
+		if (ret)
+			return ERR_PTR(ret);
+	}
+
+	return engine;
+}
+
+void
+nvkm_engine_tile(struct nvkm_engine *engine, int region)
+{
+	struct nvkm_fb *fb = engine->subdev.device->fb;
+	if (engine->func->tile)
+		engine->func->tile(engine, region, &fb->tile.region[region]);
+}
+
+static void
+nvkm_engine_intr(struct nvkm_subdev *subdev)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+	if (engine->func->intr)
+		engine->func->intr(engine);
+}
+
+static int
+nvkm_engine_info(struct nvkm_subdev *subdev, u64 mthd, u64 *data)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+
+	if (engine->func->info)
+		return engine->func->info(engine, mthd, data);
+
+	return -ENOSYS;
+}
+
+static int
+nvkm_engine_fini(struct nvkm_subdev *subdev, bool suspend)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+	if (engine->func->fini)
+		return engine->func->fini(engine, suspend);
+	return 0;
+}
+
+static int
+nvkm_engine_init(struct nvkm_subdev *subdev)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+	struct nvkm_fb *fb = subdev->device->fb;
+	int ret = 0, i;
+
+	if (engine->func->init)
+		ret = engine->func->init(engine);
+
+	for (i = 0; fb && i < fb->tile.regions; i++)
+		nvkm_engine_tile(engine, i);
+	return ret;
+}
+
+static int
+nvkm_engine_oneinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+
+	if (engine->func->oneinit)
+		return engine->func->oneinit(engine);
+
+	return 0;
+}
+
+static int
+nvkm_engine_preinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+	if (engine->func->preinit)
+		engine->func->preinit(engine);
+	return 0;
+}
+
+static void *
+nvkm_engine_dtor(struct nvkm_subdev *subdev)
+{
+	struct nvkm_engine *engine = nvkm_engine(subdev);
+	if (engine->func->dtor)
+		return engine->func->dtor(engine);
+	return engine;
+}
+
+const struct nvkm_subdev_func
+nvkm_engine = {
+	.dtor = nvkm_engine_dtor,
+	.preinit = nvkm_engine_preinit,
+	.oneinit = nvkm_engine_oneinit,
+	.init = nvkm_engine_init,
+	.fini = nvkm_engine_fini,
+	.info = nvkm_engine_info,
+	.intr = nvkm_engine_intr,
+};
+
+int
+nvkm_engine_ctor(const struct nvkm_engine_func *func, struct nvkm_device *device,
+		 enum nvkm_subdev_type type, int inst, bool enable, struct nvkm_engine *engine)
+{
+	engine->func = func;
+	nvkm_subdev_ctor(&nvkm_engine, device, type, inst, &engine->subdev);
+	refcount_set(&engine->subdev.use.refcount, 0);
+
+	if (!nvkm_boolopt(device->cfgopt, engine->subdev.name, enable)) {
+		nvkm_debug(&engine->subdev, "disabled\n");
+		return -ENODEV;
+	}
+
+	spin_lock_init(&engine->lock);
+	return 0;
+}
+
+int
+nvkm_engine_new_(const struct nvkm_engine_func *func, struct nvkm_device *device,
+		 enum nvkm_subdev_type type, int inst, bool enable,
+		 struct nvkm_engine **pengine)
+{
+	if (!(*pengine = kzalloc(sizeof(**pengine), GFP_KERNEL)))
+		return -ENOMEM;
+	return nvkm_engine_ctor(func, device, type, inst, enable, *pengine);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/enum.c b/drivers/gpu/drm/nouveau/nvkm/core/enum.c
new file mode 100644
index 000000000..b9581feb2
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/enum.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2010 Nouveau Project
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#include <core/enum.h>
+
+const struct nvkm_enum *
+nvkm_enum_find(const struct nvkm_enum *en, u32 value)
+{
+	while (en->name) {
+		if (en->value == value)
+			return en;
+		en++;
+	}
+
+	return NULL;
+}
+
+void
+nvkm_snprintbf(char *data, int size, const struct nvkm_bitfield *bf, u32 value)
+{
+	bool space = false;
+	while (size >= 1 && bf->name) {
+		if (value & bf->mask) {
+			int this = snprintf(data, size, "%s%s",
+					    space ? " " : "", bf->name);
+			size -= this;
+			data += this;
+			space = true;
+		}
+		bf++;
+	}
+	data[0] = '\0';
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/event.c b/drivers/gpu/drm/nouveau/nvkm/core/event.c
new file mode 100644
index 000000000..a6c877135
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/event.c
@@ -0,0 +1,214 @@
+/*
+ * Copyright 2013-2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <core/event.h>
+#include <core/subdev.h>
+
+static void
+nvkm_event_put(struct nvkm_event *event, u32 types, int index)
+{
+	assert_spin_locked(&event->refs_lock);
+
+	nvkm_trace(event->subdev, "event: decr %08x on %d\n", types, index);
+
+	while (types) {
+		int type = __ffs(types); types &= ~(1 << type);
+		if (--event->refs[index * event->types_nr + type] == 0) {
+			nvkm_trace(event->subdev, "event: blocking %d on %d\n", type, index);
+			if (event->func->fini)
+				event->func->fini(event, 1 << type, index);
+		}
+	}
+}
+
+static void
+nvkm_event_get(struct nvkm_event *event, u32 types, int index)
+{
+	assert_spin_locked(&event->refs_lock);
+
+	nvkm_trace(event->subdev, "event: incr %08x on %d\n", types, index);
+
+	while (types) {
+		int type = __ffs(types); types &= ~(1 << type);
+		if (++event->refs[index * event->types_nr + type] == 1) {
+			nvkm_trace(event->subdev, "event: allowing %d on %d\n", type, index);
+			if (event->func->init)
+				event->func->init(event, 1 << type, index);
+		}
+	}
+}
+
+static void
+nvkm_event_ntfy_state(struct nvkm_event_ntfy *ntfy)
+{
+	struct nvkm_event *event = ntfy->event;
+	unsigned long flags;
+
+	nvkm_trace(event->subdev, "event: ntfy state changed\n");
+	spin_lock_irqsave(&event->refs_lock, flags);
+
+	if (atomic_read(&ntfy->allowed) != ntfy->running) {
+		if (ntfy->running) {
+			nvkm_event_put(ntfy->event, ntfy->bits, ntfy->id);
+			ntfy->running = false;
+		} else {
+			nvkm_event_get(ntfy->event, ntfy->bits, ntfy->id);
+			ntfy->running = true;
+		}
+	}
+
+	spin_unlock_irqrestore(&event->refs_lock, flags);
+}
+
+static void
+nvkm_event_ntfy_remove(struct nvkm_event_ntfy *ntfy)
+{
+	spin_lock_irq(&ntfy->event->list_lock);
+	list_del_init(&ntfy->head);
+	spin_unlock_irq(&ntfy->event->list_lock);
+}
+
+static void
+nvkm_event_ntfy_insert(struct nvkm_event_ntfy *ntfy)
+{
+	spin_lock_irq(&ntfy->event->list_lock);
+	list_add_tail(&ntfy->head, &ntfy->event->ntfy);
+	spin_unlock_irq(&ntfy->event->list_lock);
+}
+
+static void
+nvkm_event_ntfy_block_(struct nvkm_event_ntfy *ntfy, bool wait)
+{
+	struct nvkm_subdev *subdev = ntfy->event->subdev;
+
+	nvkm_trace(subdev, "event: ntfy block %08x on %d wait:%d\n", ntfy->bits, ntfy->id, wait);
+
+	if (atomic_xchg(&ntfy->allowed, 0) == 1) {
+		nvkm_event_ntfy_state(ntfy);
+		if (wait)
+			nvkm_event_ntfy_remove(ntfy);
+	}
+}
+
+void
+nvkm_event_ntfy_block(struct nvkm_event_ntfy *ntfy)
+{
+	if (ntfy->event)
+		nvkm_event_ntfy_block_(ntfy, ntfy->wait);
+}
+
+void
+nvkm_event_ntfy_allow(struct nvkm_event_ntfy *ntfy)
+{
+	nvkm_trace(ntfy->event->subdev, "event: ntfy allow %08x on %d\n", ntfy->bits, ntfy->id);
+
+	if (atomic_xchg(&ntfy->allowed, 1) == 0) {
+		nvkm_event_ntfy_state(ntfy);
+		if (ntfy->wait)
+			nvkm_event_ntfy_insert(ntfy);
+	}
+}
+
+void
+nvkm_event_ntfy_del(struct nvkm_event_ntfy *ntfy)
+{
+	struct nvkm_event *event = ntfy->event;
+
+	if (!event)
+		return;
+
+	nvkm_trace(event->subdev, "event: ntfy del %08x on %d\n", ntfy->bits, ntfy->id);
+
+	nvkm_event_ntfy_block_(ntfy, false);
+	nvkm_event_ntfy_remove(ntfy);
+	ntfy->event = NULL;
+}
+
+void
+nvkm_event_ntfy_add(struct nvkm_event *event, int id, u32 bits, bool wait, nvkm_event_func func,
+		    struct nvkm_event_ntfy *ntfy)
+{
+	nvkm_trace(event->subdev, "event: ntfy add %08x on %d wait:%d\n", id, bits, wait);
+
+	ntfy->event = event;
+	ntfy->id = id;
+	ntfy->bits = bits;
+	ntfy->wait = wait;
+	ntfy->func = func;
+	atomic_set(&ntfy->allowed, 0);
+	ntfy->running = false;
+	INIT_LIST_HEAD(&ntfy->head);
+	if (!ntfy->wait)
+		nvkm_event_ntfy_insert(ntfy);
+}
+
+bool
+nvkm_event_ntfy_valid(struct nvkm_event *event, int id, u32 bits)
+{
+	return true;
+}
+
+void
+nvkm_event_ntfy(struct nvkm_event *event, int id, u32 bits)
+{
+	struct nvkm_event_ntfy *ntfy, *ntmp;
+	unsigned long flags;
+
+	if (!event->refs || WARN_ON(id >= event->index_nr))
+		return;
+
+	nvkm_trace(event->subdev, "event: ntfy %08x on %d\n", bits, id);
+	spin_lock_irqsave(&event->list_lock, flags);
+
+	list_for_each_entry_safe(ntfy, ntmp, &event->ntfy, head) {
+		if (ntfy->id == id && ntfy->bits & bits) {
+			if (atomic_read(&ntfy->allowed))
+				ntfy->func(ntfy, ntfy->bits & bits);
+		}
+	}
+
+	spin_unlock_irqrestore(&event->list_lock, flags);
+}
+
+void
+nvkm_event_fini(struct nvkm_event *event)
+{
+	if (event->refs) {
+		kfree(event->refs);
+		event->refs = NULL;
+	}
+}
+
+int
+__nvkm_event_init(const struct nvkm_event_func *func, struct nvkm_subdev *subdev,
+		  int types_nr, int index_nr, struct nvkm_event *event)
+{
+	event->refs = kzalloc(array3_size(index_nr, types_nr, sizeof(*event->refs)), GFP_KERNEL);
+	if (!event->refs)
+		return -ENOMEM;
+
+	event->func = func;
+	event->subdev = subdev;
+	event->types_nr = types_nr;
+	event->index_nr = index_nr;
+	INIT_LIST_HEAD(&event->ntfy);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/firmware.c b/drivers/gpu/drm/nouveau/nvkm/core/firmware.c
new file mode 100644
index 000000000..91fb494d4
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/firmware.c
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <core/device.h>
+#include <core/firmware.h>
+
+#include <subdev/fb.h>
+#include <subdev/mmu.h>
+
+int
+nvkm_firmware_load_name(const struct nvkm_subdev *subdev, const char *base,
+			const char *name, int ver, const struct firmware **pfw)
+{
+	char path[64];
+	int ret;
+
+	snprintf(path, sizeof(path), "%s%s", base, name);
+	ret = nvkm_firmware_get(subdev, path, ver, pfw);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int
+nvkm_firmware_load_blob(const struct nvkm_subdev *subdev, const char *base,
+			const char *name, int ver, struct nvkm_blob *blob)
+{
+	const struct firmware *fw;
+	int ret;
+
+	ret = nvkm_firmware_load_name(subdev, base, name, ver, &fw);
+	if (ret == 0) {
+		blob->data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+		blob->size = fw->size;
+		nvkm_firmware_put(fw);
+		if (!blob->data)
+			return -ENOMEM;
+	}
+
+	return ret;
+}
+
+/**
+ * nvkm_firmware_get - load firmware from the official nvidia/chip/ directory
+ * @subdev:	subdevice that will use that firmware
+ * @fwname:	name of firmware file to load
+ * @ver:	firmware version to load
+ * @fw:		firmware structure to load to
+ *
+ * Use this function to load firmware files in the form nvidia/chip/fwname.bin.
+ * Firmware files released by NVIDIA will always follow this format.
+ */
+int
+nvkm_firmware_get(const struct nvkm_subdev *subdev, const char *fwname, int ver,
+		  const struct firmware **fw)
+{
+	struct nvkm_device *device = subdev->device;
+	char f[64];
+	char cname[16];
+	int i;
+
+	/* Convert device name to lowercase */
+	strncpy(cname, device->chip->name, sizeof(cname));
+	cname[sizeof(cname) - 1] = '\0';
+	i = strlen(cname);
+	while (i) {
+		--i;
+		cname[i] = tolower(cname[i]);
+	}
+
+	if (ver != 0)
+		snprintf(f, sizeof(f), "nvidia/%s/%s-%d.bin", cname, fwname, ver);
+	else
+		snprintf(f, sizeof(f), "nvidia/%s/%s.bin", cname, fwname);
+
+	if (!firmware_request_nowarn(fw, f, device->dev)) {
+		nvkm_debug(subdev, "firmware \"%s\" loaded - %zu byte(s)\n",
+			   f, (*fw)->size);
+		return 0;
+	}
+
+	nvkm_debug(subdev, "firmware \"%s\" unavailable\n", f);
+	return -ENOENT;
+}
+
+/*
+ * nvkm_firmware_put - release firmware loaded with nvkm_firmware_get
+ */
+void
+nvkm_firmware_put(const struct firmware *fw)
+{
+	release_firmware(fw);
+}
+
+#define nvkm_firmware_mem(p) container_of((p), struct nvkm_firmware, mem.memory)
+
+static int
+nvkm_firmware_mem_map(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
+		      struct nvkm_vma *vma, void *argv, u32 argc)
+{
+	struct nvkm_firmware *fw = nvkm_firmware_mem(memory);
+	struct nvkm_vmm_map map = {
+		.memory = &fw->mem.memory,
+		.offset = offset,
+		.sgl = &fw->mem.sgl,
+	};
+
+	if (WARN_ON(fw->func->type != NVKM_FIRMWARE_IMG_DMA))
+		return -ENOSYS;
+
+	return nvkm_vmm_map(vmm, vma, argv, argc, &map);
+}
+
+static u64
+nvkm_firmware_mem_size(struct nvkm_memory *memory)
+{
+	return sg_dma_len(&nvkm_firmware_mem(memory)->mem.sgl);
+}
+
+static u64
+nvkm_firmware_mem_addr(struct nvkm_memory *memory)
+{
+	return nvkm_firmware_mem(memory)->phys;
+}
+
+static u8
+nvkm_firmware_mem_page(struct nvkm_memory *memory)
+{
+	return PAGE_SHIFT;
+}
+
+static enum nvkm_memory_target
+nvkm_firmware_mem_target(struct nvkm_memory *memory)
+{
+	if (nvkm_firmware_mem(memory)->device->func->tegra)
+		return NVKM_MEM_TARGET_NCOH;
+
+	return NVKM_MEM_TARGET_HOST;
+}
+
+static void *
+nvkm_firmware_mem_dtor(struct nvkm_memory *memory)
+{
+	return NULL;
+}
+
+static const struct nvkm_memory_func
+nvkm_firmware_mem = {
+	.dtor = nvkm_firmware_mem_dtor,
+	.target = nvkm_firmware_mem_target,
+	.page = nvkm_firmware_mem_page,
+	.addr = nvkm_firmware_mem_addr,
+	.size = nvkm_firmware_mem_size,
+	.map = nvkm_firmware_mem_map,
+};
+
+void
+nvkm_firmware_dtor(struct nvkm_firmware *fw)
+{
+	struct nvkm_memory *memory = &fw->mem.memory;
+
+	if (!fw->img)
+		return;
+
+	switch (fw->func->type) {
+	case NVKM_FIRMWARE_IMG_RAM:
+		kfree(fw->img);
+		break;
+	case NVKM_FIRMWARE_IMG_DMA:
+		nvkm_memory_unref(&memory);
+		dma_free_coherent(fw->device->dev, sg_dma_len(&fw->mem.sgl), fw->img, fw->phys);
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
+
+	fw->img = NULL;
+}
+
+int
+nvkm_firmware_ctor(const struct nvkm_firmware_func *func, const char *name,
+		   struct nvkm_device *device, const void *src, int len, struct nvkm_firmware *fw)
+{
+	fw->func = func;
+	fw->name = name;
+	fw->device = device;
+	fw->len = len;
+
+	switch (fw->func->type) {
+	case NVKM_FIRMWARE_IMG_RAM:
+		fw->img = kmemdup(src, fw->len, GFP_KERNEL);
+		break;
+	case NVKM_FIRMWARE_IMG_DMA: {
+		dma_addr_t addr;
+
+		len = ALIGN(fw->len, PAGE_SIZE);
+
+		fw->img = dma_alloc_coherent(fw->device->dev, len, &addr, GFP_KERNEL);
+		if (fw->img) {
+			memcpy(fw->img, src, fw->len);
+			fw->phys = addr;
+		}
+
+		sg_init_one(&fw->mem.sgl, fw->img, len);
+		sg_dma_address(&fw->mem.sgl) = fw->phys;
+		sg_dma_len(&fw->mem.sgl) = len;
+	}
+		break;
+	default:
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	if (!fw->img)
+		return -ENOMEM;
+
+	nvkm_memory_ctor(&nvkm_firmware_mem, &fw->mem.memory);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c b/drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c
new file mode 100644
index 000000000..d6de2b3ed
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/gpuobj.h>
+#include <core/engine.h>
+
+#include <subdev/instmem.h>
+#include <subdev/bar.h>
+#include <subdev/mmu.h>
+
+/* fast-path, where backend is able to provide direct pointer to memory */
+static u32
+nvkm_gpuobj_rd32_fast(struct nvkm_gpuobj *gpuobj, u32 offset)
+{
+	return ioread32_native(gpuobj->map + offset);
+}
+
+static void
+nvkm_gpuobj_wr32_fast(struct nvkm_gpuobj *gpuobj, u32 offset, u32 data)
+{
+	iowrite32_native(data, gpuobj->map + offset);
+}
+
+/* accessor functions for gpuobjs allocated directly from instmem */
+static int
+nvkm_gpuobj_heap_map(struct nvkm_gpuobj *gpuobj, u64 offset,
+		     struct nvkm_vmm *vmm, struct nvkm_vma *vma,
+		     void *argv, u32 argc)
+{
+	return nvkm_memory_map(gpuobj->memory, offset, vmm, vma, argv, argc);
+}
+
+static u32
+nvkm_gpuobj_heap_rd32(struct nvkm_gpuobj *gpuobj, u32 offset)
+{
+	return nvkm_ro32(gpuobj->memory, offset);
+}
+
+static void
+nvkm_gpuobj_heap_wr32(struct nvkm_gpuobj *gpuobj, u32 offset, u32 data)
+{
+	nvkm_wo32(gpuobj->memory, offset, data);
+}
+
+static const struct nvkm_gpuobj_func nvkm_gpuobj_heap;
+static void
+nvkm_gpuobj_heap_release(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->func = &nvkm_gpuobj_heap;
+	nvkm_done(gpuobj->memory);
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_heap_fast = {
+	.release = nvkm_gpuobj_heap_release,
+	.rd32 = nvkm_gpuobj_rd32_fast,
+	.wr32 = nvkm_gpuobj_wr32_fast,
+	.map = nvkm_gpuobj_heap_map,
+};
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_heap_slow = {
+	.release = nvkm_gpuobj_heap_release,
+	.rd32 = nvkm_gpuobj_heap_rd32,
+	.wr32 = nvkm_gpuobj_heap_wr32,
+	.map = nvkm_gpuobj_heap_map,
+};
+
+static void *
+nvkm_gpuobj_heap_acquire(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->map = nvkm_kmap(gpuobj->memory);
+	if (likely(gpuobj->map))
+		gpuobj->func = &nvkm_gpuobj_heap_fast;
+	else
+		gpuobj->func = &nvkm_gpuobj_heap_slow;
+	return gpuobj->map;
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_heap = {
+	.acquire = nvkm_gpuobj_heap_acquire,
+	.map = nvkm_gpuobj_heap_map,
+};
+
+/* accessor functions for gpuobjs sub-allocated from a parent gpuobj */
+static int
+nvkm_gpuobj_map(struct nvkm_gpuobj *gpuobj, u64 offset,
+		struct nvkm_vmm *vmm, struct nvkm_vma *vma,
+		void *argv, u32 argc)
+{
+	return nvkm_memory_map(gpuobj->parent, gpuobj->node->offset + offset,
+			       vmm, vma, argv, argc);
+}
+
+static u32
+nvkm_gpuobj_rd32(struct nvkm_gpuobj *gpuobj, u32 offset)
+{
+	return nvkm_ro32(gpuobj->parent, gpuobj->node->offset + offset);
+}
+
+static void
+nvkm_gpuobj_wr32(struct nvkm_gpuobj *gpuobj, u32 offset, u32 data)
+{
+	nvkm_wo32(gpuobj->parent, gpuobj->node->offset + offset, data);
+}
+
+static const struct nvkm_gpuobj_func nvkm_gpuobj_func;
+static void
+nvkm_gpuobj_release(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->func = &nvkm_gpuobj_func;
+	nvkm_done(gpuobj->parent);
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_fast = {
+	.release = nvkm_gpuobj_release,
+	.rd32 = nvkm_gpuobj_rd32_fast,
+	.wr32 = nvkm_gpuobj_wr32_fast,
+	.map = nvkm_gpuobj_map,
+};
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_slow = {
+	.release = nvkm_gpuobj_release,
+	.rd32 = nvkm_gpuobj_rd32,
+	.wr32 = nvkm_gpuobj_wr32,
+	.map = nvkm_gpuobj_map,
+};
+
+static void *
+nvkm_gpuobj_acquire(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->map = nvkm_kmap(gpuobj->parent);
+	if (likely(gpuobj->map)) {
+		gpuobj->map  = (u8 *)gpuobj->map + gpuobj->node->offset;
+		gpuobj->func = &nvkm_gpuobj_fast;
+	} else {
+		gpuobj->func = &nvkm_gpuobj_slow;
+	}
+	return gpuobj->map;
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_func = {
+	.acquire = nvkm_gpuobj_acquire,
+	.map = nvkm_gpuobj_map,
+};
+
+static int
+nvkm_gpuobj_ctor(struct nvkm_device *device, u32 size, int align, bool zero,
+		 struct nvkm_gpuobj *parent, struct nvkm_gpuobj *gpuobj)
+{
+	u32 offset;
+	int ret;
+
+	if (parent) {
+		if (align >= 0) {
+			ret = nvkm_mm_head(&parent->heap, 0, 1, size, size,
+					   max(align, 1), &gpuobj->node);
+		} else {
+			ret = nvkm_mm_tail(&parent->heap, 0, 1, size, size,
+					   -align, &gpuobj->node);
+		}
+		if (ret)
+			return ret;
+
+		gpuobj->parent = parent;
+		gpuobj->func = &nvkm_gpuobj_func;
+		gpuobj->addr = parent->addr + gpuobj->node->offset;
+		gpuobj->size = gpuobj->node->length;
+
+		if (zero) {
+			nvkm_kmap(gpuobj);
+			for (offset = 0; offset < gpuobj->size; offset += 4)
+				nvkm_wo32(gpuobj, offset, 0x00000000);
+			nvkm_done(gpuobj);
+		}
+	} else {
+		ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size,
+				      abs(align), zero, &gpuobj->memory);
+		if (ret)
+			return ret;
+
+		gpuobj->func = &nvkm_gpuobj_heap;
+		gpuobj->addr = nvkm_memory_addr(gpuobj->memory);
+		gpuobj->size = nvkm_memory_size(gpuobj->memory);
+	}
+
+	return nvkm_mm_init(&gpuobj->heap, 0, 0, gpuobj->size, 1);
+}
+
+void
+nvkm_gpuobj_del(struct nvkm_gpuobj **pgpuobj)
+{
+	struct nvkm_gpuobj *gpuobj = *pgpuobj;
+	if (gpuobj) {
+		if (gpuobj->parent)
+			nvkm_mm_free(&gpuobj->parent->heap, &gpuobj->node);
+		nvkm_mm_fini(&gpuobj->heap);
+		nvkm_memory_unref(&gpuobj->memory);
+		kfree(*pgpuobj);
+		*pgpuobj = NULL;
+	}
+}
+
+int
+nvkm_gpuobj_new(struct nvkm_device *device, u32 size, int align, bool zero,
+		struct nvkm_gpuobj *parent, struct nvkm_gpuobj **pgpuobj)
+{
+	struct nvkm_gpuobj *gpuobj;
+	int ret;
+
+	if (!(gpuobj = *pgpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL)))
+		return -ENOMEM;
+
+	ret = nvkm_gpuobj_ctor(device, size, align, zero, parent, gpuobj);
+	if (ret)
+		nvkm_gpuobj_del(pgpuobj);
+	return ret;
+}
+
+/* the below is basically only here to support sharing the paged dma object
+ * for PCI(E)GART on <=nv4x chipsets, and should *not* be expected to work
+ * anywhere else.
+ */
+
+int
+nvkm_gpuobj_wrap(struct nvkm_memory *memory, struct nvkm_gpuobj **pgpuobj)
+{
+	if (!(*pgpuobj = kzalloc(sizeof(**pgpuobj), GFP_KERNEL)))
+		return -ENOMEM;
+
+	(*pgpuobj)->addr = nvkm_memory_addr(memory);
+	(*pgpuobj)->size = nvkm_memory_size(memory);
+	return 0;
+}
+
+void
+nvkm_gpuobj_memcpy_to(struct nvkm_gpuobj *dst, u32 dstoffset, void *src,
+		      u32 length)
+{
+	int i;
+
+	for (i = 0; i < length; i += 4)
+		nvkm_wo32(dst, dstoffset + i, *(u32 *)(src + i));
+}
+
+void
+nvkm_gpuobj_memcpy_from(void *dst, struct nvkm_gpuobj *src, u32 srcoffset,
+			u32 length)
+{
+	int i;
+
+	for (i = 0; i < length; i += 4)
+		((u32 *)src)[i / 4] = nvkm_ro32(src, srcoffset + i);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/intr.c b/drivers/gpu/drm/nouveau/nvkm/core/intr.c
new file mode 100644
index 000000000..e20b7ca21
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/intr.c
@@ -0,0 +1,442 @@
+/*
+ * Copyright 2021 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <core/intr.h>
+#include <core/device.h>
+#include <core/subdev.h>
+#include <subdev/pci.h>
+#include <subdev/top.h>
+
+static int
+nvkm_intr_xlat(struct nvkm_subdev *subdev, struct nvkm_intr *intr,
+	       enum nvkm_intr_type type, int *leaf, u32 *mask)
+{
+	struct nvkm_device *device = subdev->device;
+
+	if (type < NVKM_INTR_VECTOR_0) {
+		if (type == NVKM_INTR_SUBDEV) {
+			const struct nvkm_intr_data *data = intr->data;
+			struct nvkm_top_device *tdev;
+
+			while (data && data->mask) {
+				if (data->type == NVKM_SUBDEV_TOP) {
+					list_for_each_entry(tdev, &device->top->device, head) {
+						if (tdev->intr >= 0 &&
+						    tdev->type == subdev->type &&
+						    tdev->inst == subdev->inst) {
+							if (data->mask & BIT(tdev->intr)) {
+								*leaf = data->leaf;
+								*mask = BIT(tdev->intr);
+								return 0;
+							}
+						}
+					}
+				} else
+				if (data->type == subdev->type && data->inst == subdev->inst) {
+					*leaf = data->leaf;
+					*mask = data->mask;
+					return 0;
+				}
+
+				data++;
+			}
+		} else {
+			return -ENOSYS;
+		}
+	} else {
+		if (type < intr->leaves * sizeof(*intr->stat) * 8) {
+			*leaf = type / 32;
+			*mask = BIT(type % 32);
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static struct nvkm_intr *
+nvkm_intr_find(struct nvkm_subdev *subdev, enum nvkm_intr_type type, int *leaf, u32 *mask)
+{
+	struct nvkm_intr *intr;
+	int ret;
+
+	list_for_each_entry(intr, &subdev->device->intr.intr, head) {
+		ret = nvkm_intr_xlat(subdev, intr, type, leaf, mask);
+		if (ret == 0)
+			return intr;
+	}
+
+	return NULL;
+}
+
+static void
+nvkm_intr_allow_locked(struct nvkm_intr *intr, int leaf, u32 mask)
+{
+	intr->mask[leaf] |= mask;
+	if (intr->func->allow) {
+		if (intr->func->reset)
+			intr->func->reset(intr, leaf, mask);
+		intr->func->allow(intr, leaf, mask);
+	}
+}
+
+void
+nvkm_intr_allow(struct nvkm_subdev *subdev, enum nvkm_intr_type type)
+{
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_intr *intr;
+	unsigned long flags;
+	int leaf;
+	u32 mask;
+
+	intr = nvkm_intr_find(subdev, type, &leaf, &mask);
+	if (intr) {
+		nvkm_debug(intr->subdev, "intr %d/%08x allowed by %s\n", leaf, mask, subdev->name);
+		spin_lock_irqsave(&device->intr.lock, flags);
+		nvkm_intr_allow_locked(intr, leaf, mask);
+		spin_unlock_irqrestore(&device->intr.lock, flags);
+	}
+}
+
+static void
+nvkm_intr_block_locked(struct nvkm_intr *intr, int leaf, u32 mask)
+{
+	intr->mask[leaf] &= ~mask;
+	if (intr->func->block)
+		intr->func->block(intr, leaf, mask);
+}
+
+void
+nvkm_intr_block(struct nvkm_subdev *subdev, enum nvkm_intr_type type)
+{
+	struct nvkm_device *device = subdev->device;
+	struct nvkm_intr *intr;
+	unsigned long flags;
+	int leaf;
+	u32 mask;
+
+	intr = nvkm_intr_find(subdev, type, &leaf, &mask);
+	if (intr) {
+		nvkm_debug(intr->subdev, "intr %d/%08x blocked by %s\n", leaf, mask, subdev->name);
+		spin_lock_irqsave(&device->intr.lock, flags);
+		nvkm_intr_block_locked(intr, leaf, mask);
+		spin_unlock_irqrestore(&device->intr.lock, flags);
+	}
+}
+
+static void
+nvkm_intr_rearm_locked(struct nvkm_device *device)
+{
+	struct nvkm_intr *intr;
+
+	list_for_each_entry(intr, &device->intr.intr, head)
+		intr->func->rearm(intr);
+}
+
+static void
+nvkm_intr_unarm_locked(struct nvkm_device *device)
+{
+	struct nvkm_intr *intr;
+
+	list_for_each_entry(intr, &device->intr.intr, head)
+		intr->func->unarm(intr);
+}
+
+static irqreturn_t
+nvkm_intr(int irq, void *arg)
+{
+	struct nvkm_device *device = arg;
+	struct nvkm_intr *intr;
+	struct nvkm_inth *inth;
+	irqreturn_t ret = IRQ_NONE;
+	bool pending = false;
+	int prio, leaf;
+
+	/* Disable all top-level interrupt sources, and re-arm MSI interrupts. */
+	spin_lock(&device->intr.lock);
+	if (!device->intr.armed)
+		goto done_unlock;
+
+	nvkm_intr_unarm_locked(device);
+	nvkm_pci_msi_rearm(device);
+
+	/* Fetch pending interrupt masks. */
+	list_for_each_entry(intr, &device->intr.intr, head) {
+		if (intr->func->pending(intr))
+			pending = true;
+	}
+
+	if (!pending)
+		goto done;
+
+	/* Check that GPU is still on the bus by reading NV_PMC_BOOT_0. */
+	if (WARN_ON(nvkm_rd32(device, 0x000000) == 0xffffffff))
+		goto done;
+
+	/* Execute handlers. */
+	for (prio = 0; prio < ARRAY_SIZE(device->intr.prio); prio++) {
+		list_for_each_entry(inth, &device->intr.prio[prio], head) {
+			struct nvkm_intr *intr = inth->intr;
+
+			if (intr->stat[inth->leaf] & inth->mask) {
+				if (atomic_read(&inth->allowed)) {
+					if (intr->func->reset)
+						intr->func->reset(intr, inth->leaf, inth->mask);
+					if (inth->func(inth) == IRQ_HANDLED)
+						ret = IRQ_HANDLED;
+				}
+			}
+		}
+	}
+
+	/* Nothing handled?  Some debugging/protection from IRQ storms is in order... */
+	if (ret == IRQ_NONE) {
+		list_for_each_entry(intr, &device->intr.intr, head) {
+			for (leaf = 0; leaf < intr->leaves; leaf++) {
+				if (intr->stat[leaf]) {
+					nvkm_warn(intr->subdev, "intr%d: %08x\n",
+						  leaf, intr->stat[leaf]);
+					nvkm_intr_block_locked(intr, leaf, intr->stat[leaf]);
+				}
+			}
+		}
+	}
+
+done:
+	/* Re-enable all top-level interrupt sources. */
+	nvkm_intr_rearm_locked(device);
+done_unlock:
+	spin_unlock(&device->intr.lock);
+	return ret;
+}
+
+int
+nvkm_intr_add(const struct nvkm_intr_func *func, const struct nvkm_intr_data *data,
+	      struct nvkm_subdev *subdev, int leaves, struct nvkm_intr *intr)
+{
+	struct nvkm_device *device = subdev->device;
+	int i;
+
+	intr->func = func;
+	intr->data = data;
+	intr->subdev = subdev;
+	intr->leaves = leaves;
+	intr->stat = kcalloc(leaves, sizeof(*intr->stat), GFP_KERNEL);
+	intr->mask = kcalloc(leaves, sizeof(*intr->mask), GFP_KERNEL);
+	if (!intr->stat || !intr->mask) {
+		kfree(intr->stat);
+		return -ENOMEM;
+	}
+
+	if (intr->subdev->debug >= NV_DBG_DEBUG) {
+		for (i = 0; i < intr->leaves; i++)
+			intr->mask[i] = ~0;
+	}
+
+	spin_lock_irq(&device->intr.lock);
+	list_add_tail(&intr->head, &device->intr.intr);
+	spin_unlock_irq(&device->intr.lock);
+	return 0;
+}
+
+static irqreturn_t
+nvkm_intr_subdev(struct nvkm_inth *inth)
+{
+	struct nvkm_subdev *subdev = container_of(inth, typeof(*subdev), inth);
+
+	nvkm_subdev_intr(subdev);
+	return IRQ_HANDLED;
+}
+
+static void
+nvkm_intr_subdev_add_dev(struct nvkm_intr *intr, enum nvkm_subdev_type type, int inst)
+{
+	struct nvkm_subdev *subdev;
+	enum nvkm_intr_prio prio;
+	int ret;
+
+	subdev = nvkm_device_subdev(intr->subdev->device, type, inst);
+	if (!subdev || !subdev->func->intr)
+		return;
+
+	if (type == NVKM_ENGINE_DISP)
+		prio = NVKM_INTR_PRIO_VBLANK;
+	else
+		prio = NVKM_INTR_PRIO_NORMAL;
+
+	ret = nvkm_inth_add(intr, NVKM_INTR_SUBDEV, prio, subdev, nvkm_intr_subdev, &subdev->inth);
+	if (WARN_ON(ret))
+		return;
+
+	nvkm_inth_allow(&subdev->inth);
+}
+
+static void
+nvkm_intr_subdev_add(struct nvkm_intr *intr)
+{
+	const struct nvkm_intr_data *data;
+	struct nvkm_device *device = intr->subdev->device;
+	struct nvkm_top_device *tdev;
+
+	for (data = intr->data; data && data->mask; data++) {
+		if (data->legacy) {
+			if (data->type == NVKM_SUBDEV_TOP) {
+				list_for_each_entry(tdev, &device->top->device, head) {
+					if (tdev->intr < 0 || !(data->mask & BIT(tdev->intr)))
+						continue;
+
+					nvkm_intr_subdev_add_dev(intr, tdev->type, tdev->inst);
+				}
+			} else {
+				nvkm_intr_subdev_add_dev(intr, data->type, data->inst);
+			}
+		}
+	}
+}
+
+void
+nvkm_intr_rearm(struct nvkm_device *device)
+{
+	struct nvkm_intr *intr;
+	int i;
+
+	if (unlikely(!device->intr.legacy_done)) {
+		list_for_each_entry(intr, &device->intr.intr, head)
+			nvkm_intr_subdev_add(intr);
+		device->intr.legacy_done = true;
+	}
+
+	spin_lock_irq(&device->intr.lock);
+	list_for_each_entry(intr, &device->intr.intr, head) {
+		for (i = 0; intr->func->block && i < intr->leaves; i++) {
+			intr->func->block(intr, i, ~0);
+			intr->func->allow(intr, i, intr->mask[i]);
+		}
+	}
+
+	nvkm_intr_rearm_locked(device);
+	device->intr.armed = true;
+	spin_unlock_irq(&device->intr.lock);
+}
+
+void
+nvkm_intr_unarm(struct nvkm_device *device)
+{
+	spin_lock_irq(&device->intr.lock);
+	nvkm_intr_unarm_locked(device);
+	device->intr.armed = false;
+	spin_unlock_irq(&device->intr.lock);
+}
+
+int
+nvkm_intr_install(struct nvkm_device *device)
+{
+	int ret;
+
+	device->intr.irq = device->func->irq(device);
+	if (device->intr.irq < 0)
+		return device->intr.irq;
+
+	ret = request_irq(device->intr.irq, nvkm_intr, IRQF_SHARED, "nvkm", device);
+	if (ret)
+		return ret;
+
+	device->intr.alloc = true;
+	return 0;
+}
+
+void
+nvkm_intr_dtor(struct nvkm_device *device)
+{
+	struct nvkm_intr *intr, *intt;
+
+	list_for_each_entry_safe(intr, intt, &device->intr.intr, head) {
+		list_del(&intr->head);
+		kfree(intr->mask);
+		kfree(intr->stat);
+	}
+
+	if (device->intr.alloc)
+		free_irq(device->intr.irq, device);
+}
+
+void
+nvkm_intr_ctor(struct nvkm_device *device)
+{
+	int i;
+
+	INIT_LIST_HEAD(&device->intr.intr);
+	for (i = 0; i < ARRAY_SIZE(device->intr.prio); i++)
+		INIT_LIST_HEAD(&device->intr.prio[i]);
+
+	spin_lock_init(&device->intr.lock);
+	device->intr.armed = false;
+}
+
+void
+nvkm_inth_block(struct nvkm_inth *inth)
+{
+	if (unlikely(!inth->intr))
+		return;
+
+	atomic_set(&inth->allowed, 0);
+}
+
+void
+nvkm_inth_allow(struct nvkm_inth *inth)
+{
+	struct nvkm_intr *intr = inth->intr;
+	unsigned long flags;
+
+	if (unlikely(!inth->intr))
+		return;
+
+	spin_lock_irqsave(&intr->subdev->device->intr.lock, flags);
+	if (!atomic_xchg(&inth->allowed, 1)) {
+		if ((intr->mask[inth->leaf] & inth->mask) != inth->mask)
+			nvkm_intr_allow_locked(intr, inth->leaf, inth->mask);
+	}
+	spin_unlock_irqrestore(&intr->subdev->device->intr.lock, flags);
+}
+
+int
+nvkm_inth_add(struct nvkm_intr *intr, enum nvkm_intr_type type, enum nvkm_intr_prio prio,
+	      struct nvkm_subdev *subdev, nvkm_inth_func func, struct nvkm_inth *inth)
+{
+	struct nvkm_device *device = subdev->device;
+	int ret;
+
+	if (WARN_ON(inth->mask))
+		return -EBUSY;
+
+	ret = nvkm_intr_xlat(subdev, intr, type, &inth->leaf, &inth->mask);
+	if (ret)
+		return ret;
+
+	nvkm_debug(intr->subdev, "intr %d/%08x requested by %s\n",
+		   inth->leaf, inth->mask, subdev->name);
+
+	inth->intr = intr;
+	inth->func = func;
+	atomic_set(&inth->allowed, 0);
+	list_add_tail(&inth->head, &device->intr.prio[prio]);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c b/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c
new file mode 100644
index 000000000..0b33287e4
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c
@@ -0,0 +1,390 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include <core/ioctl.h>
+#include <core/client.h>
+#include <core/engine.h>
+#include <core/event.h>
+
+#include <nvif/unpack.h>
+#include <nvif/ioctl.h>
+
+static int
+nvkm_ioctl_nop(struct nvkm_client *client,
+	       struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_nop_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "nop size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object, "nop vers %lld\n", args->v0.version);
+		args->v0.version = NVIF_VERSION_LATEST;
+	}
+
+	return ret;
+}
+
+#include <nvif/class.h>
+
+static int
+nvkm_ioctl_sclass_(struct nvkm_object *object, int index, struct nvkm_oclass *oclass)
+{
+	if ( object->func->uevent &&
+	    !object->func->uevent(object, NULL, 0, NULL) && index-- == 0) {
+		oclass->ctor = nvkm_uevent_new;
+		oclass->base.minver = 0;
+		oclass->base.maxver = 0;
+		oclass->base.oclass = NVIF_CLASS_EVENT;
+		return 0;
+	}
+
+	if (object->func->sclass)
+		return object->func->sclass(object, index, oclass);
+
+	return -ENOSYS;
+}
+
+static int
+nvkm_ioctl_sclass(struct nvkm_client *client,
+		  struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_sclass_v0 v0;
+	} *args = data;
+	struct nvkm_oclass oclass = { .client = client };
+	int ret = -ENOSYS, i = 0;
+
+	nvif_ioctl(object, "sclass size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(object, "sclass vers %d count %d\n",
+			   args->v0.version, args->v0.count);
+		if (size != args->v0.count * sizeof(args->v0.oclass[0]))
+			return -EINVAL;
+
+		while (nvkm_ioctl_sclass_(object, i, &oclass) >= 0) {
+			if (i < args->v0.count) {
+				args->v0.oclass[i].oclass = oclass.base.oclass;
+				args->v0.oclass[i].minver = oclass.base.minver;
+				args->v0.oclass[i].maxver = oclass.base.maxver;
+			}
+			i++;
+		}
+
+		args->v0.count = i;
+	}
+
+	return ret;
+}
+
+static int
+nvkm_ioctl_new(struct nvkm_client *client,
+	       struct nvkm_object *parent, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_new_v0 v0;
+	} *args = data;
+	struct nvkm_object *object = NULL;
+	struct nvkm_oclass oclass;
+	int ret = -ENOSYS, i = 0;
+
+	nvif_ioctl(parent, "new size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(parent, "new vers %d handle %08x class %08x "
+				   "route %02x token %llx object %016llx\n",
+			   args->v0.version, args->v0.handle, args->v0.oclass,
+			   args->v0.route, args->v0.token, args->v0.object);
+	} else
+		return ret;
+
+	if (!parent->func->sclass && !parent->func->uevent) {
+		nvif_ioctl(parent, "cannot have children\n");
+		return -EINVAL;
+	}
+
+	do {
+		memset(&oclass, 0x00, sizeof(oclass));
+		oclass.handle = args->v0.handle;
+		oclass.route  = args->v0.route;
+		oclass.token  = args->v0.token;
+		oclass.object = args->v0.object;
+		oclass.client = client;
+		oclass.parent = parent;
+		ret = nvkm_ioctl_sclass_(parent, i++, &oclass);
+		if (ret)
+			return ret;
+	} while (oclass.base.oclass != args->v0.oclass);
+
+	if (oclass.engine) {
+		oclass.engine = nvkm_engine_ref(oclass.engine);
+		if (IS_ERR(oclass.engine))
+			return PTR_ERR(oclass.engine);
+	}
+
+	ret = oclass.ctor(&oclass, data, size, &object);
+	nvkm_engine_unref(&oclass.engine);
+	if (ret == 0) {
+		ret = nvkm_object_init(object);
+		if (ret == 0) {
+			list_add_tail(&object->head, &parent->tree);
+			if (nvkm_object_insert(object)) {
+				client->data = object;
+				return 0;
+			}
+			ret = -EEXIST;
+		}
+		nvkm_object_fini(object, false);
+	}
+
+	nvkm_object_del(&object);
+	return ret;
+}
+
+static int
+nvkm_ioctl_del(struct nvkm_client *client,
+	       struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_del none;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "delete size %d\n", size);
+	if (!(ret = nvif_unvers(ret, &data, &size, args->none))) {
+		nvif_ioctl(object, "delete\n");
+		nvkm_object_fini(object, false);
+		nvkm_object_del(&object);
+	}
+
+	return ret ? ret : 1;
+}
+
+static int
+nvkm_ioctl_mthd(struct nvkm_client *client,
+		struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_mthd_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "mthd size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(object, "mthd vers %d mthd %02x\n",
+			   args->v0.version, args->v0.method);
+		ret = nvkm_object_mthd(object, args->v0.method, data, size);
+	}
+
+	return ret;
+}
+
+
+static int
+nvkm_ioctl_rd(struct nvkm_client *client,
+	      struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_rd_v0 v0;
+	} *args = data;
+	union {
+		u8  b08;
+		u16 b16;
+		u32 b32;
+	} v;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "rd size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object, "rd vers %d size %d addr %016llx\n",
+			   args->v0.version, args->v0.size, args->v0.addr);
+		switch (args->v0.size) {
+		case 1:
+			ret = nvkm_object_rd08(object, args->v0.addr, &v.b08);
+			args->v0.data = v.b08;
+			break;
+		case 2:
+			ret = nvkm_object_rd16(object, args->v0.addr, &v.b16);
+			args->v0.data = v.b16;
+			break;
+		case 4:
+			ret = nvkm_object_rd32(object, args->v0.addr, &v.b32);
+			args->v0.data = v.b32;
+			break;
+		default:
+			ret = -EINVAL;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static int
+nvkm_ioctl_wr(struct nvkm_client *client,
+	      struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_wr_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "wr size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
+		nvif_ioctl(object,
+			   "wr vers %d size %d addr %016llx data %08x\n",
+			   args->v0.version, args->v0.size, args->v0.addr,
+			   args->v0.data);
+	} else
+		return ret;
+
+	switch (args->v0.size) {
+	case 1: return nvkm_object_wr08(object, args->v0.addr, args->v0.data);
+	case 2: return nvkm_object_wr16(object, args->v0.addr, args->v0.data);
+	case 4: return nvkm_object_wr32(object, args->v0.addr, args->v0.data);
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int
+nvkm_ioctl_map(struct nvkm_client *client,
+	       struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_map_v0 v0;
+	} *args = data;
+	enum nvkm_object_map type;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "map size %d\n", size);
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(object, "map vers %d\n", args->v0.version);
+		ret = nvkm_object_map(object, data, size, &type,
+				      &args->v0.handle,
+				      &args->v0.length);
+		if (type == NVKM_OBJECT_MAP_IO)
+			args->v0.type = NVIF_IOCTL_MAP_V0_IO;
+		else
+			args->v0.type = NVIF_IOCTL_MAP_V0_VA;
+	}
+
+	return ret;
+}
+
+static int
+nvkm_ioctl_unmap(struct nvkm_client *client,
+		 struct nvkm_object *object, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_unmap none;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "unmap size %d\n", size);
+	if (!(ret = nvif_unvers(ret, &data, &size, args->none))) {
+		nvif_ioctl(object, "unmap\n");
+		ret = nvkm_object_unmap(object);
+	}
+
+	return ret;
+}
+
+static struct {
+	int version;
+	int (*func)(struct nvkm_client *, struct nvkm_object *, void *, u32);
+}
+nvkm_ioctl_v0[] = {
+	{ 0x00, nvkm_ioctl_nop },
+	{ 0x00, nvkm_ioctl_sclass },
+	{ 0x00, nvkm_ioctl_new },
+	{ 0x00, nvkm_ioctl_del },
+	{ 0x00, nvkm_ioctl_mthd },
+	{ 0x00, nvkm_ioctl_rd },
+	{ 0x00, nvkm_ioctl_wr },
+	{ 0x00, nvkm_ioctl_map },
+	{ 0x00, nvkm_ioctl_unmap },
+};
+
+static int
+nvkm_ioctl_path(struct nvkm_client *client, u64 handle, u32 type,
+		void *data, u32 size, u8 owner, u8 *route, u64 *token)
+{
+	struct nvkm_object *object;
+	int ret;
+
+	object = nvkm_object_search(client, handle, NULL);
+	if (IS_ERR(object)) {
+		nvif_ioctl(&client->object, "object not found\n");
+		return PTR_ERR(object);
+	}
+
+	if (owner != NVIF_IOCTL_V0_OWNER_ANY && owner != object->route) {
+		nvif_ioctl(&client->object, "route != owner\n");
+		return -EACCES;
+	}
+	*route = object->route;
+	*token = object->token;
+
+	if (ret = -EINVAL, type < ARRAY_SIZE(nvkm_ioctl_v0)) {
+		if (nvkm_ioctl_v0[type].version == 0)
+			ret = nvkm_ioctl_v0[type].func(client, object, data, size);
+	}
+
+	return ret;
+}
+
+int
+nvkm_ioctl(struct nvkm_client *client, void *data, u32 size, void **hack)
+{
+	struct nvkm_object *object = &client->object;
+	union {
+		struct nvif_ioctl_v0 v0;
+	} *args = data;
+	int ret = -ENOSYS;
+
+	nvif_ioctl(object, "size %d\n", size);
+
+	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
+		nvif_ioctl(object,
+			   "vers %d type %02x object %016llx owner %02x\n",
+			   args->v0.version, args->v0.type, args->v0.object,
+			   args->v0.owner);
+		ret = nvkm_ioctl_path(client, args->v0.object, args->v0.type,
+				      data, size, args->v0.owner,
+				      &args->v0.route, &args->v0.token);
+	}
+
+	if (ret != 1) {
+		nvif_ioctl(object, "return %d\n", ret);
+		if (hack) {
+			*hack = client->data;
+			client->data = NULL;
+		}
+	}
+
+	return ret;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/memory.c b/drivers/gpu/drm/nouveau/nvkm/core/memory.c
new file mode 100644
index 000000000..c69daac9b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/memory.c
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include <core/memory.h>
+#include <core/mm.h>
+#include <subdev/fb.h>
+#include <subdev/instmem.h>
+
+void
+nvkm_memory_tags_put(struct nvkm_memory *memory, struct nvkm_device *device,
+		     struct nvkm_tags **ptags)
+{
+	struct nvkm_fb *fb = device->fb;
+	struct nvkm_tags *tags = *ptags;
+	if (tags) {
+		mutex_lock(&fb->tags.mutex);
+		if (refcount_dec_and_test(&tags->refcount)) {
+			nvkm_mm_free(&fb->tags.mm, &tags->mn);
+			kfree(memory->tags);
+			memory->tags = NULL;
+		}
+		mutex_unlock(&fb->tags.mutex);
+		*ptags = NULL;
+	}
+}
+
+int
+nvkm_memory_tags_get(struct nvkm_memory *memory, struct nvkm_device *device,
+		     u32 nr, void (*clr)(struct nvkm_device *, u32, u32),
+		     struct nvkm_tags **ptags)
+{
+	struct nvkm_fb *fb = device->fb;
+	struct nvkm_tags *tags;
+
+	mutex_lock(&fb->tags.mutex);
+	if ((tags = memory->tags)) {
+		/* If comptags exist for the memory, but a different amount
+		 * than requested, the buffer is being mapped with settings
+		 * that are incompatible with existing mappings.
+		 */
+		if (tags->mn && tags->mn->length != nr) {
+			mutex_unlock(&fb->tags.mutex);
+			return -EINVAL;
+		}
+
+		refcount_inc(&tags->refcount);
+		mutex_unlock(&fb->tags.mutex);
+		*ptags = tags;
+		return 0;
+	}
+
+	if (!(tags = kmalloc(sizeof(*tags), GFP_KERNEL))) {
+		mutex_unlock(&fb->tags.mutex);
+		return -ENOMEM;
+	}
+
+	if (!nvkm_mm_head(&fb->tags.mm, 0, 1, nr, nr, 1, &tags->mn)) {
+		if (clr)
+			clr(device, tags->mn->offset, tags->mn->length);
+	} else {
+		/* Failure to allocate HW comptags is not an error, the
+		 * caller should fall back to an uncompressed map.
+		 *
+		 * As memory can be mapped in multiple places, we still
+		 * need to track the allocation failure and ensure that
+		 * any additional mappings remain uncompressed.
+		 *
+		 * This is handled by returning an empty nvkm_tags.
+		 */
+		tags->mn = NULL;
+	}
+
+	refcount_set(&tags->refcount, 1);
+	*ptags = memory->tags = tags;
+	mutex_unlock(&fb->tags.mutex);
+	return 0;
+}
+
+void
+nvkm_memory_ctor(const struct nvkm_memory_func *func,
+		 struct nvkm_memory *memory)
+{
+	memory->func = func;
+	kref_init(&memory->kref);
+}
+
+static void
+nvkm_memory_del(struct kref *kref)
+{
+	struct nvkm_memory *memory = container_of(kref, typeof(*memory), kref);
+	if (!WARN_ON(!memory->func)) {
+		if (memory->func->dtor)
+			memory = memory->func->dtor(memory);
+		kfree(memory);
+	}
+}
+
+void
+nvkm_memory_unref(struct nvkm_memory **pmemory)
+{
+	struct nvkm_memory *memory = *pmemory;
+	if (memory) {
+		kref_put(&memory->kref, nvkm_memory_del);
+		*pmemory = NULL;
+	}
+}
+
+struct nvkm_memory *
+nvkm_memory_ref(struct nvkm_memory *memory)
+{
+	if (memory)
+		kref_get(&memory->kref);
+	return memory;
+}
+
+int
+nvkm_memory_new(struct nvkm_device *device, enum nvkm_memory_target target,
+		u64 size, u32 align, bool zero,
+		struct nvkm_memory **pmemory)
+{
+	struct nvkm_instmem *imem = device->imem;
+	struct nvkm_memory *memory;
+	int ret;
+
+	if (unlikely(target != NVKM_MEM_TARGET_INST || !imem))
+		return -ENOSYS;
+
+	ret = nvkm_instobj_new(imem, size, align, zero, &memory);
+	if (ret)
+		return ret;
+
+	*pmemory = memory;
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/mm.c b/drivers/gpu/drm/nouveau/nvkm/core/mm.c
new file mode 100644
index 000000000..f78a06a6b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/mm.c
@@ -0,0 +1,307 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/mm.h>
+
+#define node(root, dir) ((root)->nl_entry.dir == &mm->nodes) ? NULL :          \
+	list_entry((root)->nl_entry.dir, struct nvkm_mm_node, nl_entry)
+
+void
+nvkm_mm_dump(struct nvkm_mm *mm, const char *header)
+{
+	struct nvkm_mm_node *node;
+
+	pr_err("nvkm: %s\n", header);
+	pr_err("nvkm: node list:\n");
+	list_for_each_entry(node, &mm->nodes, nl_entry) {
+		pr_err("nvkm: \t%08x %08x %d\n",
+		       node->offset, node->length, node->type);
+	}
+	pr_err("nvkm: free list:\n");
+	list_for_each_entry(node, &mm->free, fl_entry) {
+		pr_err("nvkm: \t%08x %08x %d\n",
+		       node->offset, node->length, node->type);
+	}
+}
+
+void
+nvkm_mm_free(struct nvkm_mm *mm, struct nvkm_mm_node **pthis)
+{
+	struct nvkm_mm_node *this = *pthis;
+
+	if (this) {
+		struct nvkm_mm_node *prev = node(this, prev);
+		struct nvkm_mm_node *next = node(this, next);
+
+		if (prev && prev->type == NVKM_MM_TYPE_NONE) {
+			prev->length += this->length;
+			list_del(&this->nl_entry);
+			kfree(this); this = prev;
+		}
+
+		if (next && next->type == NVKM_MM_TYPE_NONE) {
+			next->offset  = this->offset;
+			next->length += this->length;
+			if (this->type == NVKM_MM_TYPE_NONE)
+				list_del(&this->fl_entry);
+			list_del(&this->nl_entry);
+			kfree(this); this = NULL;
+		}
+
+		if (this && this->type != NVKM_MM_TYPE_NONE) {
+			list_for_each_entry(prev, &mm->free, fl_entry) {
+				if (this->offset < prev->offset)
+					break;
+			}
+
+			list_add_tail(&this->fl_entry, &prev->fl_entry);
+			this->type = NVKM_MM_TYPE_NONE;
+		}
+	}
+
+	*pthis = NULL;
+}
+
+static struct nvkm_mm_node *
+region_head(struct nvkm_mm *mm, struct nvkm_mm_node *a, u32 size)
+{
+	struct nvkm_mm_node *b;
+
+	if (a->length == size)
+		return a;
+
+	b = kmalloc(sizeof(*b), GFP_KERNEL);
+	if (unlikely(b == NULL))
+		return NULL;
+
+	b->offset = a->offset;
+	b->length = size;
+	b->heap   = a->heap;
+	b->type   = a->type;
+	a->offset += size;
+	a->length -= size;
+	list_add_tail(&b->nl_entry, &a->nl_entry);
+	if (b->type == NVKM_MM_TYPE_NONE)
+		list_add_tail(&b->fl_entry, &a->fl_entry);
+
+	return b;
+}
+
+int
+nvkm_mm_head(struct nvkm_mm *mm, u8 heap, u8 type, u32 size_max, u32 size_min,
+	     u32 align, struct nvkm_mm_node **pnode)
+{
+	struct nvkm_mm_node *prev, *this, *next;
+	u32 mask = align - 1;
+	u32 splitoff;
+	u32 s, e;
+
+	BUG_ON(type == NVKM_MM_TYPE_NONE || type == NVKM_MM_TYPE_HOLE);
+
+	list_for_each_entry(this, &mm->free, fl_entry) {
+		if (unlikely(heap != NVKM_MM_HEAP_ANY)) {
+			if (this->heap != heap)
+				continue;
+		}
+		e = this->offset + this->length;
+		s = this->offset;
+
+		prev = node(this, prev);
+		if (prev && prev->type != type)
+			s = roundup(s, mm->block_size);
+
+		next = node(this, next);
+		if (next && next->type != type)
+			e = rounddown(e, mm->block_size);
+
+		s  = (s + mask) & ~mask;
+		e &= ~mask;
+		if (s > e || e - s < size_min)
+			continue;
+
+		splitoff = s - this->offset;
+		if (splitoff && !region_head(mm, this, splitoff))
+			return -ENOMEM;
+
+		this = region_head(mm, this, min(size_max, e - s));
+		if (!this)
+			return -ENOMEM;
+
+		this->next = NULL;
+		this->type = type;
+		list_del(&this->fl_entry);
+		*pnode = this;
+		return 0;
+	}
+
+	return -ENOSPC;
+}
+
+static struct nvkm_mm_node *
+region_tail(struct nvkm_mm *mm, struct nvkm_mm_node *a, u32 size)
+{
+	struct nvkm_mm_node *b;
+
+	if (a->length == size)
+		return a;
+
+	b = kmalloc(sizeof(*b), GFP_KERNEL);
+	if (unlikely(b == NULL))
+		return NULL;
+
+	a->length -= size;
+	b->offset  = a->offset + a->length;
+	b->length  = size;
+	b->heap    = a->heap;
+	b->type    = a->type;
+
+	list_add(&b->nl_entry, &a->nl_entry);
+	if (b->type == NVKM_MM_TYPE_NONE)
+		list_add(&b->fl_entry, &a->fl_entry);
+
+	return b;
+}
+
+int
+nvkm_mm_tail(struct nvkm_mm *mm, u8 heap, u8 type, u32 size_max, u32 size_min,
+	     u32 align, struct nvkm_mm_node **pnode)
+{
+	struct nvkm_mm_node *prev, *this, *next;
+	u32 mask = align - 1;
+
+	BUG_ON(type == NVKM_MM_TYPE_NONE || type == NVKM_MM_TYPE_HOLE);
+
+	list_for_each_entry_reverse(this, &mm->free, fl_entry) {
+		u32 e = this->offset + this->length;
+		u32 s = this->offset;
+		u32 c = 0, a;
+		if (unlikely(heap != NVKM_MM_HEAP_ANY)) {
+			if (this->heap != heap)
+				continue;
+		}
+
+		prev = node(this, prev);
+		if (prev && prev->type != type)
+			s = roundup(s, mm->block_size);
+
+		next = node(this, next);
+		if (next && next->type != type) {
+			e = rounddown(e, mm->block_size);
+			c = next->offset - e;
+		}
+
+		s = (s + mask) & ~mask;
+		a = e - s;
+		if (s > e || a < size_min)
+			continue;
+
+		a  = min(a, size_max);
+		s  = (e - a) & ~mask;
+		c += (e - s) - a;
+
+		if (c && !region_tail(mm, this, c))
+			return -ENOMEM;
+
+		this = region_tail(mm, this, a);
+		if (!this)
+			return -ENOMEM;
+
+		this->next = NULL;
+		this->type = type;
+		list_del(&this->fl_entry);
+		*pnode = this;
+		return 0;
+	}
+
+	return -ENOSPC;
+}
+
+int
+nvkm_mm_init(struct nvkm_mm *mm, u8 heap, u32 offset, u32 length, u32 block)
+{
+	struct nvkm_mm_node *node, *prev;
+	u32 next;
+
+	if (nvkm_mm_initialised(mm)) {
+		prev = list_last_entry(&mm->nodes, typeof(*node), nl_entry);
+		next = prev->offset + prev->length;
+		if (next != offset) {
+			BUG_ON(next > offset);
+			if (!(node = kzalloc(sizeof(*node), GFP_KERNEL)))
+				return -ENOMEM;
+			node->type   = NVKM_MM_TYPE_HOLE;
+			node->offset = next;
+			node->length = offset - next;
+			list_add_tail(&node->nl_entry, &mm->nodes);
+		}
+		BUG_ON(block != mm->block_size);
+	} else {
+		INIT_LIST_HEAD(&mm->nodes);
+		INIT_LIST_HEAD(&mm->free);
+		mm->block_size = block;
+		mm->heap_nodes = 0;
+	}
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
+
+	if (length) {
+		node->offset  = roundup(offset, mm->block_size);
+		node->length  = rounddown(offset + length, mm->block_size);
+		node->length -= node->offset;
+	}
+
+	list_add_tail(&node->nl_entry, &mm->nodes);
+	list_add_tail(&node->fl_entry, &mm->free);
+	node->heap = heap;
+	mm->heap_nodes++;
+	return 0;
+}
+
+int
+nvkm_mm_fini(struct nvkm_mm *mm)
+{
+	struct nvkm_mm_node *node, *temp;
+	int nodes = 0;
+
+	if (!nvkm_mm_initialised(mm))
+		return 0;
+
+	list_for_each_entry(node, &mm->nodes, nl_entry) {
+		if (node->type != NVKM_MM_TYPE_HOLE) {
+			if (++nodes > mm->heap_nodes) {
+				nvkm_mm_dump(mm, "mm not clean!");
+				return -EBUSY;
+			}
+		}
+	}
+
+	list_for_each_entry_safe(node, temp, &mm->nodes, nl_entry) {
+		list_del(&node->nl_entry);
+		kfree(node);
+	}
+
+	mm->heap_nodes = 0;
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/object.c b/drivers/gpu/drm/nouveau/nvkm/core/object.c
new file mode 100644
index 000000000..301a5e5b5
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/object.c
@@ -0,0 +1,336 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/object.h>
+#include <core/client.h>
+#include <core/engine.h>
+
+struct nvkm_object *
+nvkm_object_search(struct nvkm_client *client, u64 handle,
+		   const struct nvkm_object_func *func)
+{
+	struct nvkm_object *object;
+
+	if (handle) {
+		struct rb_node *node = client->objroot.rb_node;
+		while (node) {
+			object = rb_entry(node, typeof(*object), node);
+			if (handle < object->object)
+				node = node->rb_left;
+			else
+			if (handle > object->object)
+				node = node->rb_right;
+			else
+				goto done;
+		}
+		return ERR_PTR(-ENOENT);
+	} else {
+		object = &client->object;
+	}
+
+done:
+	if (unlikely(func && object->func != func))
+		return ERR_PTR(-EINVAL);
+	return object;
+}
+
+void
+nvkm_object_remove(struct nvkm_object *object)
+{
+	if (!RB_EMPTY_NODE(&object->node))
+		rb_erase(&object->node, &object->client->objroot);
+}
+
+bool
+nvkm_object_insert(struct nvkm_object *object)
+{
+	struct rb_node **ptr = &object->client->objroot.rb_node;
+	struct rb_node *parent = NULL;
+
+	while (*ptr) {
+		struct nvkm_object *this = rb_entry(*ptr, typeof(*this), node);
+		parent = *ptr;
+		if (object->object < this->object)
+			ptr = &parent->rb_left;
+		else
+		if (object->object > this->object)
+			ptr = &parent->rb_right;
+		else
+			return false;
+	}
+
+	rb_link_node(&object->node, parent, ptr);
+	rb_insert_color(&object->node, &object->client->objroot);
+	return true;
+}
+
+int
+nvkm_object_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	if (likely(object->func->mthd))
+		return object->func->mthd(object, mthd, data, size);
+	return -ENODEV;
+}
+
+int
+nvkm_object_ntfy(struct nvkm_object *object, u32 mthd,
+		 struct nvkm_event **pevent)
+{
+	if (likely(object->func->ntfy))
+		return object->func->ntfy(object, mthd, pevent);
+	return -ENODEV;
+}
+
+int
+nvkm_object_map(struct nvkm_object *object, void *argv, u32 argc,
+		enum nvkm_object_map *type, u64 *addr, u64 *size)
+{
+	if (likely(object->func->map))
+		return object->func->map(object, argv, argc, type, addr, size);
+	return -ENODEV;
+}
+
+int
+nvkm_object_unmap(struct nvkm_object *object)
+{
+	if (likely(object->func->unmap))
+		return object->func->unmap(object);
+	return -ENODEV;
+}
+
+int
+nvkm_object_rd08(struct nvkm_object *object, u64 addr, u8 *data)
+{
+	if (likely(object->func->rd08))
+		return object->func->rd08(object, addr, data);
+	return -ENODEV;
+}
+
+int
+nvkm_object_rd16(struct nvkm_object *object, u64 addr, u16 *data)
+{
+	if (likely(object->func->rd16))
+		return object->func->rd16(object, addr, data);
+	return -ENODEV;
+}
+
+int
+nvkm_object_rd32(struct nvkm_object *object, u64 addr, u32 *data)
+{
+	if (likely(object->func->rd32))
+		return object->func->rd32(object, addr, data);
+	return -ENODEV;
+}
+
+int
+nvkm_object_wr08(struct nvkm_object *object, u64 addr, u8 data)
+{
+	if (likely(object->func->wr08))
+		return object->func->wr08(object, addr, data);
+	return -ENODEV;
+}
+
+int
+nvkm_object_wr16(struct nvkm_object *object, u64 addr, u16 data)
+{
+	if (likely(object->func->wr16))
+		return object->func->wr16(object, addr, data);
+	return -ENODEV;
+}
+
+int
+nvkm_object_wr32(struct nvkm_object *object, u64 addr, u32 data)
+{
+	if (likely(object->func->wr32))
+		return object->func->wr32(object, addr, data);
+	return -ENODEV;
+}
+
+int
+nvkm_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *gpuobj,
+		 int align, struct nvkm_gpuobj **pgpuobj)
+{
+	if (object->func->bind)
+		return object->func->bind(object, gpuobj, align, pgpuobj);
+	return -ENODEV;
+}
+
+int
+nvkm_object_fini(struct nvkm_object *object, bool suspend)
+{
+	const char *action = suspend ? "suspend" : "fini";
+	struct nvkm_object *child;
+	s64 time;
+	int ret;
+
+	nvif_debug(object, "%s children...\n", action);
+	time = ktime_to_us(ktime_get());
+	list_for_each_entry(child, &object->tree, head) {
+		ret = nvkm_object_fini(child, suspend);
+		if (ret && suspend)
+			goto fail_child;
+	}
+
+	nvif_debug(object, "%s running...\n", action);
+	if (object->func->fini) {
+		ret = object->func->fini(object, suspend);
+		if (ret) {
+			nvif_error(object, "%s failed with %d\n", action, ret);
+			if (suspend)
+				goto fail;
+		}
+	}
+
+	time = ktime_to_us(ktime_get()) - time;
+	nvif_debug(object, "%s completed in %lldus\n", action, time);
+	return 0;
+
+fail:
+	if (object->func->init) {
+		int rret = object->func->init(object);
+		if (rret)
+			nvif_fatal(object, "failed to restart, %d\n", rret);
+	}
+fail_child:
+	list_for_each_entry_continue_reverse(child, &object->tree, head) {
+		nvkm_object_init(child);
+	}
+	return ret;
+}
+
+int
+nvkm_object_init(struct nvkm_object *object)
+{
+	struct nvkm_object *child;
+	s64 time;
+	int ret;
+
+	nvif_debug(object, "init running...\n");
+	time = ktime_to_us(ktime_get());
+	if (object->func->init) {
+		ret = object->func->init(object);
+		if (ret)
+			goto fail;
+	}
+
+	nvif_debug(object, "init children...\n");
+	list_for_each_entry(child, &object->tree, head) {
+		ret = nvkm_object_init(child);
+		if (ret)
+			goto fail_child;
+	}
+
+	time = ktime_to_us(ktime_get()) - time;
+	nvif_debug(object, "init completed in %lldus\n", time);
+	return 0;
+
+fail_child:
+	list_for_each_entry_continue_reverse(child, &object->tree, head)
+		nvkm_object_fini(child, false);
+fail:
+	nvif_error(object, "init failed with %d\n", ret);
+	if (object->func->fini)
+		object->func->fini(object, false);
+	return ret;
+}
+
+void *
+nvkm_object_dtor(struct nvkm_object *object)
+{
+	struct nvkm_object *child, *ctemp;
+	void *data = object;
+	s64 time;
+
+	nvif_debug(object, "destroy children...\n");
+	time = ktime_to_us(ktime_get());
+	list_for_each_entry_safe(child, ctemp, &object->tree, head) {
+		nvkm_object_del(&child);
+	}
+
+	nvif_debug(object, "destroy running...\n");
+	nvkm_object_unmap(object);
+	if (object->func->dtor)
+		data = object->func->dtor(object);
+	nvkm_engine_unref(&object->engine);
+	time = ktime_to_us(ktime_get()) - time;
+	nvif_debug(object, "destroy completed in %lldus...\n", time);
+	return data;
+}
+
+void
+nvkm_object_del(struct nvkm_object **pobject)
+{
+	struct nvkm_object *object = *pobject;
+	if (object && !WARN_ON(!object->func)) {
+		*pobject = nvkm_object_dtor(object);
+		nvkm_object_remove(object);
+		list_del(&object->head);
+		kfree(*pobject);
+		*pobject = NULL;
+	}
+}
+
+void
+nvkm_object_ctor(const struct nvkm_object_func *func,
+		 const struct nvkm_oclass *oclass, struct nvkm_object *object)
+{
+	object->func = func;
+	object->client = oclass->client;
+	object->engine = nvkm_engine_ref(oclass->engine);
+	object->oclass = oclass->base.oclass;
+	object->handle = oclass->handle;
+	object->route  = oclass->route;
+	object->token  = oclass->token;
+	object->object = oclass->object;
+	INIT_LIST_HEAD(&object->head);
+	INIT_LIST_HEAD(&object->tree);
+	RB_CLEAR_NODE(&object->node);
+	WARN_ON(IS_ERR(object->engine));
+}
+
+int
+nvkm_object_new_(const struct nvkm_object_func *func,
+		 const struct nvkm_oclass *oclass, void *data, u32 size,
+		 struct nvkm_object **pobject)
+{
+	if (size == 0) {
+		if (!(*pobject = kzalloc(sizeof(**pobject), GFP_KERNEL)))
+			return -ENOMEM;
+		nvkm_object_ctor(func, oclass, *pobject);
+		return 0;
+	}
+	return -ENOSYS;
+}
+
+static const struct nvkm_object_func
+nvkm_object_func = {
+};
+
+int
+nvkm_object_new(const struct nvkm_oclass *oclass, void *data, u32 size,
+		struct nvkm_object **pobject)
+{
+	const struct nvkm_object_func *func =
+		oclass->base.func ? oclass->base.func : &nvkm_object_func;
+	return nvkm_object_new_(func, oclass, data, size, pobject);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/oproxy.c b/drivers/gpu/drm/nouveau/nvkm/core/oproxy.c
new file mode 100644
index 000000000..3385528da
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/oproxy.c
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include <core/oproxy.h>
+
+static int
+nvkm_oproxy_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
+{
+	return nvkm_object_mthd(nvkm_oproxy(object)->object, mthd, data, size);
+}
+
+static int
+nvkm_oproxy_ntfy(struct nvkm_object *object, u32 mthd,
+		 struct nvkm_event **pevent)
+{
+	return nvkm_object_ntfy(nvkm_oproxy(object)->object, mthd, pevent);
+}
+
+static int
+nvkm_oproxy_map(struct nvkm_object *object, void *argv, u32 argc,
+		enum nvkm_object_map *type, u64 *addr, u64 *size)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+	return nvkm_object_map(oproxy->object, argv, argc, type, addr, size);
+}
+
+static int
+nvkm_oproxy_unmap(struct nvkm_object *object)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+
+	if (unlikely(!oproxy->object))
+		return 0;
+
+	return nvkm_object_unmap(oproxy->object);
+}
+
+static int
+nvkm_oproxy_rd08(struct nvkm_object *object, u64 addr, u8 *data)
+{
+	return nvkm_object_rd08(nvkm_oproxy(object)->object, addr, data);
+}
+
+static int
+nvkm_oproxy_rd16(struct nvkm_object *object, u64 addr, u16 *data)
+{
+	return nvkm_object_rd16(nvkm_oproxy(object)->object, addr, data);
+}
+
+static int
+nvkm_oproxy_rd32(struct nvkm_object *object, u64 addr, u32 *data)
+{
+	return nvkm_object_rd32(nvkm_oproxy(object)->object, addr, data);
+}
+
+static int
+nvkm_oproxy_wr08(struct nvkm_object *object, u64 addr, u8 data)
+{
+	return nvkm_object_wr08(nvkm_oproxy(object)->object, addr, data);
+}
+
+static int
+nvkm_oproxy_wr16(struct nvkm_object *object, u64 addr, u16 data)
+{
+	return nvkm_object_wr16(nvkm_oproxy(object)->object, addr, data);
+}
+
+static int
+nvkm_oproxy_wr32(struct nvkm_object *object, u64 addr, u32 data)
+{
+	return nvkm_object_wr32(nvkm_oproxy(object)->object, addr, data);
+}
+
+static int
+nvkm_oproxy_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
+		 int align, struct nvkm_gpuobj **pgpuobj)
+{
+	return nvkm_object_bind(nvkm_oproxy(object)->object,
+				parent, align, pgpuobj);
+}
+
+static int
+nvkm_oproxy_sclass(struct nvkm_object *object, int index,
+		   struct nvkm_oclass *oclass)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+	oclass->parent = oproxy->object;
+	if (!oproxy->object->func->sclass)
+		return -ENODEV;
+	return oproxy->object->func->sclass(oproxy->object, index, oclass);
+}
+
+static int
+nvkm_oproxy_uevent(struct nvkm_object *object, void *argv, u32 argc,
+		   struct nvkm_uevent *uevent)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+
+	if (!oproxy->object->func->uevent)
+		return -ENOSYS;
+
+	return oproxy->object->func->uevent(oproxy->object, argv, argc, uevent);
+}
+
+static int
+nvkm_oproxy_fini(struct nvkm_object *object, bool suspend)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+	int ret;
+
+	if (oproxy->func->fini[0]) {
+		ret = oproxy->func->fini[0](oproxy, suspend);
+		if (ret && suspend)
+			return ret;
+	}
+
+	if (oproxy->object->func->fini) {
+		ret = oproxy->object->func->fini(oproxy->object, suspend);
+		if (ret && suspend)
+			return ret;
+	}
+
+	if (oproxy->func->fini[1]) {
+		ret = oproxy->func->fini[1](oproxy, suspend);
+		if (ret && suspend)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int
+nvkm_oproxy_init(struct nvkm_object *object)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+	int ret;
+
+	if (oproxy->func->init[0]) {
+		ret = oproxy->func->init[0](oproxy);
+		if (ret)
+			return ret;
+	}
+
+	if (oproxy->object->func->init) {
+		ret = oproxy->object->func->init(oproxy->object);
+		if (ret)
+			return ret;
+	}
+
+	if (oproxy->func->init[1]) {
+		ret = oproxy->func->init[1](oproxy);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void *
+nvkm_oproxy_dtor(struct nvkm_object *object)
+{
+	struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
+	if (oproxy->func->dtor[0])
+		oproxy->func->dtor[0](oproxy);
+	nvkm_object_del(&oproxy->object);
+	if (oproxy->func->dtor[1])
+		oproxy->func->dtor[1](oproxy);
+	return oproxy;
+}
+
+static const struct nvkm_object_func
+nvkm_oproxy_func = {
+	.dtor = nvkm_oproxy_dtor,
+	.init = nvkm_oproxy_init,
+	.fini = nvkm_oproxy_fini,
+	.mthd = nvkm_oproxy_mthd,
+	.ntfy = nvkm_oproxy_ntfy,
+	.map = nvkm_oproxy_map,
+	.unmap = nvkm_oproxy_unmap,
+	.rd08 = nvkm_oproxy_rd08,
+	.rd16 = nvkm_oproxy_rd16,
+	.rd32 = nvkm_oproxy_rd32,
+	.wr08 = nvkm_oproxy_wr08,
+	.wr16 = nvkm_oproxy_wr16,
+	.wr32 = nvkm_oproxy_wr32,
+	.bind = nvkm_oproxy_bind,
+	.sclass = nvkm_oproxy_sclass,
+	.uevent = nvkm_oproxy_uevent,
+};
+
+void
+nvkm_oproxy_ctor(const struct nvkm_oproxy_func *func,
+		 const struct nvkm_oclass *oclass, struct nvkm_oproxy *oproxy)
+{
+	nvkm_object_ctor(&nvkm_oproxy_func, oclass, &oproxy->base);
+	oproxy->func = func;
+}
+
+int
+nvkm_oproxy_new_(const struct nvkm_oproxy_func *func,
+		 const struct nvkm_oclass *oclass, struct nvkm_oproxy **poproxy)
+{
+	if (!(*poproxy = kzalloc(sizeof(**poproxy), GFP_KERNEL)))
+		return -ENOMEM;
+	nvkm_oproxy_ctor(func, oclass, *poproxy);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/option.c b/drivers/gpu/drm/nouveau/nvkm/core/option.c
new file mode 100644
index 000000000..3e62cf8cd
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/option.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/option.h>
+#include <core/debug.h>
+
+const char *
+nvkm_stropt(const char *optstr, const char *opt, int *arglen)
+{
+	while (optstr && *optstr != '\0') {
+		int len = strcspn(optstr, ",=");
+		switch (optstr[len]) {
+		case '=':
+			if (!strncasecmpz(optstr, opt, len)) {
+				optstr += len + 1;
+				*arglen = strcspn(optstr, ",=");
+				return *arglen ? optstr : NULL;
+			}
+			optstr++;
+			break;
+		case ',':
+			optstr++;
+			break;
+		default:
+			break;
+		}
+		optstr += len;
+	}
+
+	return NULL;
+}
+
+bool
+nvkm_boolopt(const char *optstr, const char *opt, bool value)
+{
+	int arglen;
+
+	optstr = nvkm_stropt(optstr, opt, &arglen);
+	if (optstr) {
+		if (!strncasecmpz(optstr, "0", arglen) ||
+		    !strncasecmpz(optstr, "no", arglen) ||
+		    !strncasecmpz(optstr, "off", arglen) ||
+		    !strncasecmpz(optstr, "false", arglen))
+			value = false;
+		else
+		if (!strncasecmpz(optstr, "1", arglen) ||
+		    !strncasecmpz(optstr, "yes", arglen) ||
+		    !strncasecmpz(optstr, "on", arglen) ||
+		    !strncasecmpz(optstr, "true", arglen))
+			value = true;
+	}
+
+	return value;
+}
+
+long
+nvkm_longopt(const char *optstr, const char *opt, long value)
+{
+	long result = value;
+	int arglen;
+	char *s;
+
+	optstr = nvkm_stropt(optstr, opt, &arglen);
+	if (optstr && (s = kstrndup(optstr, arglen, GFP_KERNEL))) {
+		int ret = kstrtol(s, 0, &value);
+		if (ret == 0)
+			result = value;
+		kfree(s);
+	}
+
+	return result;
+}
+
+int
+nvkm_dbgopt(const char *optstr, const char *sub)
+{
+	int mode = 1, level = CONFIG_NOUVEAU_DEBUG_DEFAULT;
+
+	while (optstr) {
+		int len = strcspn(optstr, ",=");
+		switch (optstr[len]) {
+		case '=':
+			if (strncasecmpz(optstr, sub, len))
+				mode = 0;
+			optstr++;
+			break;
+		default:
+			if (mode) {
+				if (!strncasecmpz(optstr, "fatal", len))
+					level = NV_DBG_FATAL;
+				else if (!strncasecmpz(optstr, "error", len))
+					level = NV_DBG_ERROR;
+				else if (!strncasecmpz(optstr, "warn", len))
+					level = NV_DBG_WARN;
+				else if (!strncasecmpz(optstr, "info", len))
+					level = NV_DBG_INFO;
+				else if (!strncasecmpz(optstr, "debug", len))
+					level = NV_DBG_DEBUG;
+				else if (!strncasecmpz(optstr, "trace", len))
+					level = NV_DBG_TRACE;
+				else if (!strncasecmpz(optstr, "paranoia", len))
+					level = NV_DBG_PARANOIA;
+				else if (!strncasecmpz(optstr, "spam", len))
+					level = NV_DBG_SPAM;
+			}
+
+			if (optstr[len] != '\0') {
+				optstr++;
+				mode = 1;
+				break;
+			}
+
+			return level;
+		}
+		optstr += len;
+	}
+
+	return level;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/ramht.c b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
new file mode 100644
index 000000000..8162e3d23
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <core/ramht.h>
+#include <core/engine.h>
+#include <core/object.h>
+
+static u32
+nvkm_ramht_hash(struct nvkm_ramht *ramht, int chid, u32 handle)
+{
+	u32 hash = 0;
+
+	while (handle) {
+		hash ^= (handle & ((1 << ramht->bits) - 1));
+		handle >>= ramht->bits;
+	}
+
+	hash ^= chid << (ramht->bits - 4);
+	return hash;
+}
+
+struct nvkm_gpuobj *
+nvkm_ramht_search(struct nvkm_ramht *ramht, int chid, u32 handle)
+{
+	u32 co, ho;
+
+	co = ho = nvkm_ramht_hash(ramht, chid, handle);
+	do {
+		if (ramht->data[co].chid == chid) {
+			if (ramht->data[co].handle == handle)
+				return ramht->data[co].inst;
+		}
+
+		if (++co >= ramht->size)
+			co = 0;
+	} while (co != ho);
+
+	return NULL;
+}
+
+static int
+nvkm_ramht_update(struct nvkm_ramht *ramht, int co, struct nvkm_object *object,
+		  int chid, int addr, u32 handle, u32 context)
+{
+	struct nvkm_ramht_data *data = &ramht->data[co];
+	u64 inst = 0x00000040; /* just non-zero for <=g8x fifo ramht */
+	int ret;
+
+	nvkm_gpuobj_del(&data->inst);
+	data->chid = chid;
+	data->handle = handle;
+
+	if (object) {
+		ret = nvkm_object_bind(object, ramht->parent, 16, &data->inst);
+		if (ret) {
+			if (ret != -ENODEV) {
+				data->chid = -1;
+				return ret;
+			}
+			data->inst = NULL;
+		}
+
+		if (data->inst) {
+			if (ramht->device->card_type >= NV_50)
+				inst = data->inst->node->offset;
+			else
+				inst = data->inst->addr;
+		}
+
+		if (addr < 0) context |= inst << -addr;
+		else          context |= inst >>  addr;
+	}
+
+	nvkm_kmap(ramht->gpuobj);
+	nvkm_wo32(ramht->gpuobj, (co << 3) + 0, handle);
+	nvkm_wo32(ramht->gpuobj, (co << 3) + 4, context);
+	nvkm_done(ramht->gpuobj);
+	return co + 1;
+}
+
+void
+nvkm_ramht_remove(struct nvkm_ramht *ramht, int cookie)
+{
+	if (--cookie >= 0)
+		nvkm_ramht_update(ramht, cookie, NULL, -1, 0, 0, 0);
+}
+
+int
+nvkm_ramht_insert(struct nvkm_ramht *ramht, struct nvkm_object *object,
+		  int chid, int addr, u32 handle, u32 context)
+{
+	u32 co, ho;
+
+	if (nvkm_ramht_search(ramht, chid, handle))
+		return -EEXIST;
+
+	co = ho = nvkm_ramht_hash(ramht, chid, handle);
+	do {
+		if (ramht->data[co].chid < 0) {
+			return nvkm_ramht_update(ramht, co, object, chid,
+						 addr, handle, context);
+		}
+
+		if (++co >= ramht->size)
+			co = 0;
+	} while (co != ho);
+
+	return -ENOSPC;
+}
+
+void
+nvkm_ramht_del(struct nvkm_ramht **pramht)
+{
+	struct nvkm_ramht *ramht = *pramht;
+	if (ramht) {
+		nvkm_gpuobj_del(&ramht->gpuobj);
+		vfree(*pramht);
+		*pramht = NULL;
+	}
+}
+
+int
+nvkm_ramht_new(struct nvkm_device *device, u32 size, u32 align,
+	       struct nvkm_gpuobj *parent, struct nvkm_ramht **pramht)
+{
+	struct nvkm_ramht *ramht;
+	int ret, i;
+
+	if (!(ramht = *pramht = vzalloc(struct_size(ramht, data, (size >> 3)))))
+		return -ENOMEM;
+
+	ramht->device = device;
+	ramht->parent = parent;
+	ramht->size = size >> 3;
+	ramht->bits = order_base_2(ramht->size);
+	for (i = 0; i < ramht->size; i++)
+		ramht->data[i].chid = -1;
+
+	ret = nvkm_gpuobj_new(ramht->device, size, align, true,
+			      ramht->parent, &ramht->gpuobj);
+	if (ret)
+		nvkm_ramht_del(pramht);
+	return ret;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/subdev.c b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c
new file mode 100644
index 000000000..6c20e827a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/subdev.h>
+#include <core/device.h>
+#include <core/option.h>
+#include <subdev/mc.h>
+
+const char *
+nvkm_subdev_type[NVKM_SUBDEV_NR] = {
+#define NVKM_LAYOUT_ONCE(type,data,ptr,...) [type] = #ptr,
+#define NVKM_LAYOUT_INST(A...) NVKM_LAYOUT_ONCE(A)
+#include <core/layout.h>
+#undef NVKM_LAYOUT_ONCE
+#undef NVKM_LAYOUT_INST
+};
+
+void
+nvkm_subdev_intr(struct nvkm_subdev *subdev)
+{
+	if (subdev->func->intr)
+		subdev->func->intr(subdev);
+}
+
+int
+nvkm_subdev_info(struct nvkm_subdev *subdev, u64 mthd, u64 *data)
+{
+	if (subdev->func->info)
+		return subdev->func->info(subdev, mthd, data);
+	return -ENOSYS;
+}
+
+int
+nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend)
+{
+	struct nvkm_device *device = subdev->device;
+	const char *action = suspend ? "suspend" : subdev->use.enabled ? "fini" : "reset";
+	s64 time;
+
+	nvkm_trace(subdev, "%s running...\n", action);
+	time = ktime_to_us(ktime_get());
+
+	if (subdev->func->fini) {
+		int ret = subdev->func->fini(subdev, suspend);
+		if (ret) {
+			nvkm_error(subdev, "%s failed, %d\n", action, ret);
+			if (suspend)
+				return ret;
+		}
+	}
+	subdev->use.enabled = false;
+
+	nvkm_mc_reset(device, subdev->type, subdev->inst);
+
+	time = ktime_to_us(ktime_get()) - time;
+	nvkm_trace(subdev, "%s completed in %lldus\n", action, time);
+	return 0;
+}
+
+int
+nvkm_subdev_preinit(struct nvkm_subdev *subdev)
+{
+	s64 time;
+
+	nvkm_trace(subdev, "preinit running...\n");
+	time = ktime_to_us(ktime_get());
+
+	if (subdev->func->preinit) {
+		int ret = subdev->func->preinit(subdev);
+		if (ret) {
+			nvkm_error(subdev, "preinit failed, %d\n", ret);
+			return ret;
+		}
+	}
+
+	time = ktime_to_us(ktime_get()) - time;
+	nvkm_trace(subdev, "preinit completed in %lldus\n", time);
+	return 0;
+}
+
+static int
+nvkm_subdev_oneinit_(struct nvkm_subdev *subdev)
+{
+	s64 time;
+	int ret;
+
+	if (!subdev->func->oneinit || subdev->oneinit)
+		return 0;
+
+	nvkm_trace(subdev, "one-time init running...\n");
+	time = ktime_to_us(ktime_get());
+	ret = subdev->func->oneinit(subdev);
+	if (ret) {
+		nvkm_error(subdev, "one-time init failed, %d\n", ret);
+		return ret;
+	}
+
+	subdev->oneinit = true;
+	time = ktime_to_us(ktime_get()) - time;
+	nvkm_trace(subdev, "one-time init completed in %lldus\n", time);
+	return 0;
+}
+
+static int
+nvkm_subdev_init_(struct nvkm_subdev *subdev)
+{
+	s64 time;
+	int ret;
+
+	if (subdev->use.enabled) {
+		nvkm_trace(subdev, "init skipped, already running\n");
+		return 0;
+	}
+
+	nvkm_trace(subdev, "init running...\n");
+	time = ktime_to_us(ktime_get());
+
+	ret = nvkm_subdev_oneinit_(subdev);
+	if (ret)
+		return ret;
+
+	subdev->use.enabled = true;
+
+	if (subdev->func->init) {
+		ret = subdev->func->init(subdev);
+		if (ret) {
+			nvkm_error(subdev, "init failed, %d\n", ret);
+			return ret;
+		}
+	}
+
+	time = ktime_to_us(ktime_get()) - time;
+	nvkm_trace(subdev, "init completed in %lldus\n", time);
+	return 0;
+}
+
+int
+nvkm_subdev_init(struct nvkm_subdev *subdev)
+{
+	int ret;
+
+	mutex_lock(&subdev->use.mutex);
+	if (refcount_read(&subdev->use.refcount) == 0) {
+		nvkm_trace(subdev, "init skipped, no users\n");
+		mutex_unlock(&subdev->use.mutex);
+		return 0;
+	}
+
+	ret = nvkm_subdev_init_(subdev);
+	mutex_unlock(&subdev->use.mutex);
+	return ret;
+}
+
+int
+nvkm_subdev_oneinit(struct nvkm_subdev *subdev)
+{
+	int ret;
+
+	mutex_lock(&subdev->use.mutex);
+	ret = nvkm_subdev_oneinit_(subdev);
+	mutex_unlock(&subdev->use.mutex);
+	return ret;
+}
+
+void
+nvkm_subdev_unref(struct nvkm_subdev *subdev)
+{
+	if (refcount_dec_and_mutex_lock(&subdev->use.refcount, &subdev->use.mutex)) {
+		nvkm_subdev_fini(subdev, false);
+		mutex_unlock(&subdev->use.mutex);
+	}
+}
+
+int
+nvkm_subdev_ref(struct nvkm_subdev *subdev)
+{
+	int ret;
+
+	if (subdev && !refcount_inc_not_zero(&subdev->use.refcount)) {
+		mutex_lock(&subdev->use.mutex);
+		if (!refcount_inc_not_zero(&subdev->use.refcount)) {
+			if ((ret = nvkm_subdev_init_(subdev))) {
+				mutex_unlock(&subdev->use.mutex);
+				return ret;
+			}
+
+			refcount_set(&subdev->use.refcount, 1);
+		}
+		mutex_unlock(&subdev->use.mutex);
+	}
+
+	return 0;
+}
+
+void
+nvkm_subdev_del(struct nvkm_subdev **psubdev)
+{
+	struct nvkm_subdev *subdev = *psubdev;
+	s64 time;
+
+	if (subdev && !WARN_ON(!subdev->func)) {
+		nvkm_trace(subdev, "destroy running...\n");
+		time = ktime_to_us(ktime_get());
+		list_del(&subdev->head);
+		if (subdev->func->dtor)
+			*psubdev = subdev->func->dtor(subdev);
+		mutex_destroy(&subdev->use.mutex);
+		time = ktime_to_us(ktime_get()) - time;
+		nvkm_trace(subdev, "destroy completed in %lldus\n", time);
+		kfree(*psubdev);
+		*psubdev = NULL;
+	}
+}
+
+void
+nvkm_subdev_disable(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
+{
+	struct nvkm_subdev *subdev;
+	list_for_each_entry(subdev, &device->subdev, head) {
+		if (subdev->type == type && subdev->inst == inst) {
+			*subdev->pself = NULL;
+			nvkm_subdev_del(&subdev);
+			break;
+		}
+	}
+}
+
+void
+__nvkm_subdev_ctor(const struct nvkm_subdev_func *func, struct nvkm_device *device,
+		   enum nvkm_subdev_type type, int inst, struct nvkm_subdev *subdev)
+{
+	subdev->func = func;
+	subdev->device = device;
+	subdev->type = type;
+	subdev->inst = inst < 0 ? 0 : inst;
+
+	if (inst >= 0)
+		snprintf(subdev->name, sizeof(subdev->name), "%s%d", nvkm_subdev_type[type], inst);
+	else
+		strscpy(subdev->name, nvkm_subdev_type[type], sizeof(subdev->name));
+	subdev->debug = nvkm_dbgopt(device->dbgopt, subdev->name);
+
+	refcount_set(&subdev->use.refcount, 1);
+	list_add_tail(&subdev->head, &device->subdev);
+}
+
+int
+nvkm_subdev_new_(const struct nvkm_subdev_func *func, struct nvkm_device *device,
+		 enum nvkm_subdev_type type, int inst, struct nvkm_subdev **psubdev)
+{
+	if (!(*psubdev = kzalloc(sizeof(**psubdev), GFP_KERNEL)))
+		return -ENOMEM;
+	nvkm_subdev_ctor(func, device, type, inst, *psubdev);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/uevent.c b/drivers/gpu/drm/nouveau/nvkm/core/uevent.c
new file mode 100644
index 000000000..ba9d9edae
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/uevent.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2021 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#define nvkm_uevent(p) container_of((p), struct nvkm_uevent, object)
+#include <core/event.h>
+#include <core/client.h>
+
+#include <nvif/if000e.h>
+
+struct nvkm_uevent {
+	struct nvkm_object object;
+	struct nvkm_object *parent;
+	nvkm_uevent_func func;
+	bool wait;
+
+	struct nvkm_event_ntfy ntfy;
+	atomic_t allowed;
+};
+
+static int
+nvkm_uevent_mthd_block(struct nvkm_uevent *uevent, union nvif_event_block_args *args, u32 argc)
+{
+	if (argc != sizeof(args->vn))
+		return -ENOSYS;
+
+	nvkm_event_ntfy_block(&uevent->ntfy);
+	atomic_set(&uevent->allowed, 0);
+	return 0;
+}
+
+static int
+nvkm_uevent_mthd_allow(struct nvkm_uevent *uevent, union nvif_event_allow_args *args, u32 argc)
+{
+	if (argc != sizeof(args->vn))
+		return -ENOSYS;
+
+	nvkm_event_ntfy_allow(&uevent->ntfy);
+	atomic_set(&uevent->allowed, 1);
+	return 0;
+}
+
+static int
+nvkm_uevent_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
+{
+	struct nvkm_uevent *uevent = nvkm_uevent(object);
+
+	switch (mthd) {
+	case NVIF_EVENT_V0_ALLOW: return nvkm_uevent_mthd_allow(uevent, argv, argc);
+	case NVIF_EVENT_V0_BLOCK: return nvkm_uevent_mthd_block(uevent, argv, argc);
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int
+nvkm_uevent_fini(struct nvkm_object *object, bool suspend)
+{
+	struct nvkm_uevent *uevent = nvkm_uevent(object);
+
+	nvkm_event_ntfy_block(&uevent->ntfy);
+	return 0;
+}
+
+static int
+nvkm_uevent_init(struct nvkm_object *object)
+{
+	struct nvkm_uevent *uevent = nvkm_uevent(object);
+
+	if (atomic_read(&uevent->allowed))
+		nvkm_event_ntfy_allow(&uevent->ntfy);
+
+	return 0;
+}
+
+static void *
+nvkm_uevent_dtor(struct nvkm_object *object)
+{
+	struct nvkm_uevent *uevent = nvkm_uevent(object);
+
+	nvkm_event_ntfy_del(&uevent->ntfy);
+	return uevent;
+}
+
+static const struct nvkm_object_func
+nvkm_uevent = {
+	.dtor = nvkm_uevent_dtor,
+	.init = nvkm_uevent_init,
+	.fini = nvkm_uevent_fini,
+	.mthd = nvkm_uevent_mthd,
+};
+
+static int
+nvkm_uevent_ntfy(struct nvkm_event_ntfy *ntfy, u32 bits)
+{
+	struct nvkm_uevent *uevent = container_of(ntfy, typeof(*uevent), ntfy);
+	struct nvkm_client *client = uevent->object.client;
+
+	if (uevent->func)
+		return uevent->func(uevent->parent, uevent->object.token, bits);
+
+	return client->event(uevent->object.token, NULL, 0);
+}
+
+int
+nvkm_uevent_add(struct nvkm_uevent *uevent, struct nvkm_event *event, int id, u32 bits,
+		nvkm_uevent_func func)
+{
+	if (WARN_ON(uevent->func))
+		return -EBUSY;
+
+	nvkm_event_ntfy_add(event, id, bits, uevent->wait, nvkm_uevent_ntfy, &uevent->ntfy);
+	uevent->func = func;
+	return 0;
+}
+
+int
+nvkm_uevent_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
+		struct nvkm_object **pobject)
+{
+	struct nvkm_object *parent = oclass->parent;
+	struct nvkm_uevent *uevent;
+	union nvif_event_args *args = argv;
+
+	if (argc < sizeof(args->v0) || args->v0.version != 0)
+		return -ENOSYS;
+
+	if (!(uevent = kzalloc(sizeof(*uevent), GFP_KERNEL)))
+		return -ENOMEM;
+	*pobject = &uevent->object;
+
+	nvkm_object_ctor(&nvkm_uevent, oclass, &uevent->object);
+	uevent->parent = parent;
+	uevent->func = NULL;
+	uevent->wait = args->v0.wait;
+	uevent->ntfy.event = NULL;
+	return parent->func->uevent(parent, &args->v0.data, argc - sizeof(args->v0), uevent);
+}