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().
  ...

2 files changed, 476 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c
new file mode 100644
index 000000000..717977aec
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c
@@ -0,0 +1,442 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, 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: AMD
+ *
+ */
+
+#include <linux/slab.h>
+
+#include "dm_services.h"
+
+#include "include/logger_interface.h"
+
+#include "../dce110/irq_service_dce110.h"
+
+#include "dcn/dcn_2_1_0_offset.h"
+#include "dcn/dcn_2_1_0_sh_mask.h"
+#include "renoir_ip_offset.h"
+
+
+#include "irq_service_dcn21.h"
+
+#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
+
+static enum dc_irq_source to_dal_irq_source_dcn21(struct irq_service *irq_service,
+						  uint32_t src_id,
+						  uint32_t ext_id)
+{
+	switch (src_id) {
+	case DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP:
+		return DC_IRQ_SOURCE_VBLANK1;
+	case DCN_1_0__SRCID__DC_D2_OTG_VSTARTUP:
+		return DC_IRQ_SOURCE_VBLANK2;
+	case DCN_1_0__SRCID__DC_D3_OTG_VSTARTUP:
+		return DC_IRQ_SOURCE_VBLANK3;
+	case DCN_1_0__SRCID__DC_D4_OTG_VSTARTUP:
+		return DC_IRQ_SOURCE_VBLANK4;
+	case DCN_1_0__SRCID__DC_D5_OTG_VSTARTUP:
+		return DC_IRQ_SOURCE_VBLANK5;
+	case DCN_1_0__SRCID__DC_D6_OTG_VSTARTUP:
+		return DC_IRQ_SOURCE_VBLANK6;
+	case DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT:
+		return DC_IRQ_SOURCE_DMCUB_OUTBOX;
+	case DCN_1_0__SRCID__OTG1_VERTICAL_INTERRUPT0_CONTROL:
+		return DC_IRQ_SOURCE_DC1_VLINE0;
+	case DCN_1_0__SRCID__OTG2_VERTICAL_INTERRUPT0_CONTROL:
+		return DC_IRQ_SOURCE_DC2_VLINE0;
+	case DCN_1_0__SRCID__OTG3_VERTICAL_INTERRUPT0_CONTROL:
+		return DC_IRQ_SOURCE_DC3_VLINE0;
+	case DCN_1_0__SRCID__OTG4_VERTICAL_INTERRUPT0_CONTROL:
+		return DC_IRQ_SOURCE_DC4_VLINE0;
+	case DCN_1_0__SRCID__OTG5_VERTICAL_INTERRUPT0_CONTROL:
+		return DC_IRQ_SOURCE_DC5_VLINE0;
+	case DCN_1_0__SRCID__OTG6_VERTICAL_INTERRUPT0_CONTROL:
+		return DC_IRQ_SOURCE_DC6_VLINE0;
+	case DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT:
+		return DC_IRQ_SOURCE_PFLIP1;
+	case DCN_1_0__SRCID__HUBP1_FLIP_INTERRUPT:
+		return DC_IRQ_SOURCE_PFLIP2;
+	case DCN_1_0__SRCID__HUBP2_FLIP_INTERRUPT:
+		return DC_IRQ_SOURCE_PFLIP3;
+	case DCN_1_0__SRCID__HUBP3_FLIP_INTERRUPT:
+		return DC_IRQ_SOURCE_PFLIP4;
+	case DCN_1_0__SRCID__HUBP4_FLIP_INTERRUPT:
+		return DC_IRQ_SOURCE_PFLIP5;
+	case DCN_1_0__SRCID__HUBP5_FLIP_INTERRUPT:
+		return DC_IRQ_SOURCE_PFLIP6;
+	case DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
+		return DC_IRQ_SOURCE_VUPDATE1;
+	case DCN_1_0__SRCID__OTG1_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
+		return DC_IRQ_SOURCE_VUPDATE2;
+	case DCN_1_0__SRCID__OTG2_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
+		return DC_IRQ_SOURCE_VUPDATE3;
+	case DCN_1_0__SRCID__OTG3_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
+		return DC_IRQ_SOURCE_VUPDATE4;
+	case DCN_1_0__SRCID__OTG4_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
+		return DC_IRQ_SOURCE_VUPDATE5;
+	case DCN_1_0__SRCID__OTG5_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
+		return DC_IRQ_SOURCE_VUPDATE6;
+
+	case DCN_1_0__SRCID__DC_HPD1_INT:
+		/* generic src_id for all HPD and HPDRX interrupts */
+		switch (ext_id) {
+		case DCN_1_0__CTXID__DC_HPD1_INT:
+			return DC_IRQ_SOURCE_HPD1;
+		case DCN_1_0__CTXID__DC_HPD2_INT:
+			return DC_IRQ_SOURCE_HPD2;
+		case DCN_1_0__CTXID__DC_HPD3_INT:
+			return DC_IRQ_SOURCE_HPD3;
+		case DCN_1_0__CTXID__DC_HPD4_INT:
+			return DC_IRQ_SOURCE_HPD4;
+		case DCN_1_0__CTXID__DC_HPD5_INT:
+			return DC_IRQ_SOURCE_HPD5;
+		case DCN_1_0__CTXID__DC_HPD6_INT:
+			return DC_IRQ_SOURCE_HPD6;
+		case DCN_1_0__CTXID__DC_HPD1_RX_INT:
+			return DC_IRQ_SOURCE_HPD1RX;
+		case DCN_1_0__CTXID__DC_HPD2_RX_INT:
+			return DC_IRQ_SOURCE_HPD2RX;
+		case DCN_1_0__CTXID__DC_HPD3_RX_INT:
+			return DC_IRQ_SOURCE_HPD3RX;
+		case DCN_1_0__CTXID__DC_HPD4_RX_INT:
+			return DC_IRQ_SOURCE_HPD4RX;
+		case DCN_1_0__CTXID__DC_HPD5_RX_INT:
+			return DC_IRQ_SOURCE_HPD5RX;
+		case DCN_1_0__CTXID__DC_HPD6_RX_INT:
+			return DC_IRQ_SOURCE_HPD6RX;
+		default:
+			return DC_IRQ_SOURCE_INVALID;
+		}
+		break;
+
+	default:
+		break;
+	}
+	return DC_IRQ_SOURCE_INVALID;
+}
+
+static bool hpd_ack(
+	struct irq_service *irq_service,
+	const struct irq_source_info *info)
+{
+	uint32_t addr = info->status_reg;
+	uint32_t value = dm_read_reg(irq_service->ctx, addr);
+	uint32_t current_status =
+		get_reg_field_value(
+			value,
+			HPD0_DC_HPD_INT_STATUS,
+			DC_HPD_SENSE_DELAYED);
+
+	dal_irq_service_ack_generic(irq_service, info);
+
+	value = dm_read_reg(irq_service->ctx, info->enable_reg);
+
+	set_reg_field_value(
+		value,
+		current_status ? 0 : 1,
+		HPD0_DC_HPD_INT_CONTROL,
+		DC_HPD_INT_POLARITY);
+
+	dm_write_reg(irq_service->ctx, info->enable_reg, value);
+
+	return true;
+}
+
+static const struct irq_source_info_funcs hpd_irq_info_funcs = {
+	.set = NULL,
+	.ack = hpd_ack
+};
+
+static const struct irq_source_info_funcs hpd_rx_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs pflip_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs vblank_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs vupdate_no_lock_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs dmub_outbox_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+static const struct irq_source_info_funcs vline0_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+
+#define SRI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+			mm ## block ## id ## _ ## reg_name
+
+#define SRI_DMUB(reg_name)\
+	BASE(mm ## reg_name ## _BASE_IDX) + \
+			mm ## reg_name
+
+#define IRQ_REG_ENTRY(block, reg_num, reg1, mask1, reg2, mask2)\
+	.enable_reg = SRI(reg1, block, reg_num),\
+	.enable_mask = \
+		block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
+	.enable_value = {\
+		block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
+		~block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK \
+	},\
+	.ack_reg = SRI(reg2, block, reg_num),\
+	.ack_mask = \
+		block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK,\
+	.ack_value = \
+		block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK \
+
+#define IRQ_REG_ENTRY_DMUB(reg1, mask1, reg2, mask2)\
+	.enable_reg = SRI_DMUB(reg1),\
+	.enable_mask = \
+		reg1 ## __ ## mask1 ## _MASK,\
+	.enable_value = {\
+		reg1 ## __ ## mask1 ## _MASK,\
+		~reg1 ## __ ## mask1 ## _MASK \
+	},\
+	.ack_reg = SRI_DMUB(reg2),\
+	.ack_mask = \
+		reg2 ## __ ## mask2 ## _MASK,\
+	.ack_value = \
+		reg2 ## __ ## mask2 ## _MASK \
+
+#define hpd_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_HPD1 + reg_num] = {\
+		IRQ_REG_ENTRY(HPD, reg_num,\
+			DC_HPD_INT_CONTROL, DC_HPD_INT_EN,\
+			DC_HPD_INT_CONTROL, DC_HPD_INT_ACK),\
+		.status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
+		.funcs = &hpd_irq_info_funcs\
+	}
+
+#define hpd_rx_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
+		IRQ_REG_ENTRY(HPD, reg_num,\
+			DC_HPD_INT_CONTROL, DC_HPD_RX_INT_EN,\
+			DC_HPD_INT_CONTROL, DC_HPD_RX_INT_ACK),\
+		.status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
+		.funcs = &hpd_rx_irq_info_funcs\
+	}
+#define pflip_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
+		IRQ_REG_ENTRY(HUBPREQ, reg_num,\
+			DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_INT_MASK,\
+			DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_CLEAR),\
+		.funcs = &pflip_irq_info_funcs\
+	}
+
+/* vupdate_no_lock_int_entry maps to DC_IRQ_SOURCE_VUPDATEx, to match semantic
+ * of DCE's DC_IRQ_SOURCE_VUPDATEx.
+ */
+#define vupdate_no_lock_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
+		IRQ_REG_ENTRY(OTG, reg_num,\
+			OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_INT_EN,\
+			OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_EVENT_CLEAR),\
+		.funcs = &vupdate_no_lock_irq_info_funcs\
+	}
+
+#define vblank_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\
+		IRQ_REG_ENTRY(OTG, reg_num,\
+			OTG_GLOBAL_SYNC_STATUS, VSTARTUP_INT_EN,\
+			OTG_GLOBAL_SYNC_STATUS, VSTARTUP_EVENT_CLEAR),\
+		.funcs = &vblank_irq_info_funcs\
+	}
+
+#define vline0_int_entry(reg_num)\
+	[DC_IRQ_SOURCE_DC1_VLINE0 + reg_num] = {\
+		IRQ_REG_ENTRY(OTG, reg_num,\
+			OTG_VERTICAL_INTERRUPT0_CONTROL, OTG_VERTICAL_INTERRUPT0_INT_ENABLE,\
+			OTG_VERTICAL_INTERRUPT0_CONTROL, OTG_VERTICAL_INTERRUPT0_CLEAR),\
+		.funcs = &vline0_irq_info_funcs\
+	}
+
+#define dmub_outbox_int_entry()\
+	[DC_IRQ_SOURCE_DMCUB_OUTBOX] = {\
+		IRQ_REG_ENTRY_DMUB(DMCUB_INTERRUPT_ENABLE, DMCUB_OUTBOX1_READY_INT_EN,\
+			DMCUB_INTERRUPT_ACK, DMCUB_OUTBOX1_READY_INT_ACK),\
+		.funcs = &dmub_outbox_irq_info_funcs\
+	}
+
+#define dummy_irq_entry() \
+	{\
+		.funcs = &dummy_irq_info_funcs\
+	}
+
+#define i2c_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry()
+
+#define dp_sink_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry()
+
+#define gpio_pad_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry()
+
+#define dc_underflow_int_entry(reg_num) \
+	[DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry()
+
+static const struct irq_source_info_funcs dummy_irq_info_funcs = {
+	.set = dal_irq_service_dummy_set,
+	.ack = dal_irq_service_dummy_ack
+};
+
+static const struct irq_source_info
+irq_source_info_dcn21[DAL_IRQ_SOURCES_NUMBER] = {
+	[DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(),
+	hpd_int_entry(0),
+	hpd_int_entry(1),
+	hpd_int_entry(2),
+	hpd_int_entry(3),
+	hpd_int_entry(4),
+	hpd_rx_int_entry(0),
+	hpd_rx_int_entry(1),
+	hpd_rx_int_entry(2),
+	hpd_rx_int_entry(3),
+	hpd_rx_int_entry(4),
+	i2c_int_entry(1),
+	i2c_int_entry(2),
+	i2c_int_entry(3),
+	i2c_int_entry(4),
+	i2c_int_entry(5),
+	i2c_int_entry(6),
+	dp_sink_int_entry(1),
+	dp_sink_int_entry(2),
+	dp_sink_int_entry(3),
+	dp_sink_int_entry(4),
+	dp_sink_int_entry(5),
+	dp_sink_int_entry(6),
+	[DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(),
+	pflip_int_entry(0),
+	pflip_int_entry(1),
+	pflip_int_entry(2),
+	pflip_int_entry(3),
+	[DC_IRQ_SOURCE_PFLIP5] = dummy_irq_entry(),
+	[DC_IRQ_SOURCE_PFLIP6] = dummy_irq_entry(),
+	[DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(),
+	gpio_pad_int_entry(0),
+	gpio_pad_int_entry(1),
+	gpio_pad_int_entry(2),
+	gpio_pad_int_entry(3),
+	gpio_pad_int_entry(4),
+	gpio_pad_int_entry(5),
+	gpio_pad_int_entry(6),
+	gpio_pad_int_entry(7),
+	gpio_pad_int_entry(8),
+	gpio_pad_int_entry(9),
+	gpio_pad_int_entry(10),
+	gpio_pad_int_entry(11),
+	gpio_pad_int_entry(12),
+	gpio_pad_int_entry(13),
+	gpio_pad_int_entry(14),
+	gpio_pad_int_entry(15),
+	gpio_pad_int_entry(16),
+	gpio_pad_int_entry(17),
+	gpio_pad_int_entry(18),
+	gpio_pad_int_entry(19),
+	gpio_pad_int_entry(20),
+	gpio_pad_int_entry(21),
+	gpio_pad_int_entry(22),
+	gpio_pad_int_entry(23),
+	gpio_pad_int_entry(24),
+	gpio_pad_int_entry(25),
+	gpio_pad_int_entry(26),
+	gpio_pad_int_entry(27),
+	gpio_pad_int_entry(28),
+	gpio_pad_int_entry(29),
+	gpio_pad_int_entry(30),
+	dc_underflow_int_entry(1),
+	dc_underflow_int_entry(2),
+	dc_underflow_int_entry(3),
+	dc_underflow_int_entry(4),
+	dc_underflow_int_entry(5),
+	dc_underflow_int_entry(6),
+	[DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
+	[DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
+	vupdate_no_lock_int_entry(0),
+	vupdate_no_lock_int_entry(1),
+	vupdate_no_lock_int_entry(2),
+	vupdate_no_lock_int_entry(3),
+	vupdate_no_lock_int_entry(4),
+	vupdate_no_lock_int_entry(5),
+	vblank_int_entry(0),
+	vblank_int_entry(1),
+	vblank_int_entry(2),
+	vblank_int_entry(3),
+	vblank_int_entry(4),
+	vblank_int_entry(5),
+	vline0_int_entry(0),
+	vline0_int_entry(1),
+	vline0_int_entry(2),
+	vline0_int_entry(3),
+	vline0_int_entry(4),
+	vline0_int_entry(5),
+	dmub_outbox_int_entry(),
+};
+
+static const struct irq_service_funcs irq_service_funcs_dcn21 = {
+		.to_dal_irq_source = to_dal_irq_source_dcn21
+};
+
+static void dcn21_irq_construct(
+	struct irq_service *irq_service,
+	struct irq_service_init_data *init_data)
+{
+	dal_irq_service_construct(irq_service, init_data);
+
+	irq_service->info = irq_source_info_dcn21;
+	irq_service->funcs = &irq_service_funcs_dcn21;
+}
+
+struct irq_service *dal_irq_service_dcn21_create(
+	struct irq_service_init_data *init_data)
+{
+	struct irq_service *irq_service = kzalloc(sizeof(*irq_service),
+						  GFP_KERNEL);
+
+	if (!irq_service)
+		return NULL;
+
+	dcn21_irq_construct(irq_service, init_data);
+	return irq_service;
+}
diff --git a/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h
new file mode 100644
index 000000000..da2bd0e93
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, 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: AMD
+ *
+ */
+
+#ifndef __DAL_IRQ_SERVICE_DCN21_H__
+#define __DAL_IRQ_SERVICE_DCN21_H__
+
+#include "../irq_service.h"
+
+struct irq_service *dal_irq_service_dcn21_create(
+	struct irq_service_init_data *init_data);
+
+#endif