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

Pull networking updates from Jakub Kicinski:
 "Core:

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

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

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

   - Expose all net/core sysctls inside netns.

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

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

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

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

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

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

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

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

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

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

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

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

  BPF:

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

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

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

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

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

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

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

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

   - Add support for BPF trampoline on s390x and riscv64.

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

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

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

  Netfilter:

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

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

  Driver API:

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

   - Separate C22 and C45 MDIO bus transactions more clearly.

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

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

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

   - Add support for controlling MACSec offload using netlink SET.

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

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

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

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

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

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

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

  New hardware / drivers:

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

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

   - CAN:
      - Renesas R-Car V4H

  Drivers:

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

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

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

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

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

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

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

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

   - Mobile:
      - rmnet: support TX aggregation"

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

1 files changed, 399 insertions, 0 deletions

diff --git a/drivers/misc/habanalabs/common/mmu/mmu_v2_hr.c b/drivers/misc/habanalabs/common/mmu/mmu_v2_hr.c
new file mode 100644
index 000000000..afe7ef964
--- /dev/null
+++ b/drivers/misc/habanalabs/common/mmu/mmu_v2_hr.c
@@ -0,0 +1,399 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020-2022 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ */
+
+#include "../habanalabs.h"
+#include "../../include/hw_ip/mmu/mmu_general.h"
+
+#include <linux/slab.h>
+
+static struct pgt_info *hl_mmu_v2_hr_get_pgt_info(struct hl_ctx *ctx, u64 phys_hop_addr)
+{
+	struct pgt_info *pgt_info = NULL;
+
+	hash_for_each_possible(ctx->hr_mmu_phys_hash, pgt_info, node,
+				(unsigned long) phys_hop_addr)
+		if (phys_hop_addr == pgt_info->phys_addr)
+			break;
+
+	return pgt_info;
+}
+
+static void hl_mmu_v2_hr_add_pgt_info(struct hl_ctx *ctx, struct pgt_info *pgt_info,
+					dma_addr_t phys_addr)
+{
+	hash_add(ctx->hr_mmu_phys_hash, &pgt_info->node, phys_addr);
+}
+
+static struct pgt_info *hl_mmu_v2_hr_get_hop0_pgt_info(struct hl_ctx *ctx)
+{
+	return &ctx->hdev->mmu_priv.hr.mmu_asid_hop0[ctx->asid];
+}
+
+/**
+ * hl_mmu_v2_hr_init() - initialize the MMU module.
+ * @hdev: habanalabs device structure.
+ *
+ * This function does the following:
+ * - Create a pool of pages for pgt_infos.
+ * - Create a shadow table for pgt
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static inline int hl_mmu_v2_hr_init(struct hl_device *hdev)
+{
+	struct asic_fixed_properties *prop = &hdev->asic_prop;
+
+	return hl_mmu_hr_init(hdev, &hdev->mmu_priv.hr, prop->mmu_hop_table_size,
+				prop->mmu_pgt_size);
+}
+
+/**
+ * hl_mmu_v2_hr_fini() - release the MMU module.
+ * @hdev: habanalabs device structure.
+ *
+ * This function does the following:
+ * - Disable MMU in H/W.
+ * - Free the pgt_infos pool.
+ *
+ * All contexts should be freed before calling this function.
+ */
+static inline void hl_mmu_v2_hr_fini(struct hl_device *hdev)
+{
+	struct asic_fixed_properties *prop = &hdev->asic_prop;
+
+	hl_mmu_hr_fini(hdev, &hdev->mmu_priv.hr, prop->mmu_hop_table_size);
+}
+
+/**
+ * hl_mmu_v2_hr_ctx_init() - initialize a context for using the MMU module.
+ * @ctx: pointer to the context structure to initialize.
+ *
+ * Initialize a mutex to protect the concurrent mapping flow, a hash to hold all
+ * page tables hops related to this context.
+ * Return: 0 on success, non-zero otherwise.
+ */
+static int hl_mmu_v2_hr_ctx_init(struct hl_ctx *ctx)
+{
+	hash_init(ctx->hr_mmu_phys_hash);
+	return 0;
+}
+
+/*
+ * hl_mmu_v2_hr_ctx_fini - disable a ctx from using the mmu module
+ *
+ * @ctx: pointer to the context structure
+ *
+ * This function does the following:
+ * - Free any pgts which were not freed yet
+ * - Free the mutex
+ * - Free DRAM default page mapping hops
+ */
+static void hl_mmu_v2_hr_ctx_fini(struct hl_ctx *ctx)
+{
+	struct hl_device *hdev = ctx->hdev;
+	struct pgt_info *pgt_info;
+	struct hlist_node *tmp;
+	int i;
+
+	if (!hash_empty(ctx->hr_mmu_phys_hash))
+		dev_err(hdev->dev, "ctx %d is freed while it has pgts in use\n",
+			ctx->asid);
+
+	hash_for_each_safe(ctx->hr_mmu_phys_hash, i, tmp, pgt_info, node) {
+		dev_err_ratelimited(hdev->dev,
+			"pgt_info of addr 0x%llx of asid %d was not destroyed, num_ptes: %d\n",
+			pgt_info->phys_addr, ctx->asid, pgt_info->num_of_ptes);
+		hl_mmu_hr_free_hop_remove_pgt(pgt_info, &ctx->hdev->mmu_priv.hr,
+							ctx->hdev->asic_prop.mmu_hop_table_size);
+	}
+}
+
+static int _hl_mmu_v2_hr_unmap(struct hl_ctx *ctx,
+				u64 virt_addr, bool is_dram_addr)
+{
+	u64 curr_pte, scrambled_virt_addr, hop_pte_phys_addr[MMU_ARCH_6_HOPS] = { 0 };
+	struct pgt_info *hops_pgt_info[MMU_ARCH_6_HOPS] = { NULL };
+	struct hl_device *hdev = ctx->hdev;
+	struct asic_fixed_properties *prop;
+	struct hl_mmu_properties *mmu_prop;
+	bool is_huge = false;
+	int i, hop_last;
+
+	prop = &hdev->asic_prop;
+
+	/* shifts and masks are the same in PMMU and HMMU, use one of them */
+	mmu_prop = is_dram_addr ? &prop->dmmu : &prop->pmmu;
+	hop_last = mmu_prop->num_hops - 1;
+
+	scrambled_virt_addr = hdev->asic_funcs->scramble_addr(hdev, virt_addr);
+	curr_pte = 0;
+
+	for (i = 0 ; i < mmu_prop->num_hops ; i++) {
+		/* we get HOP0 differently, it doesn't need curr_pte */
+		if (i == 0)
+			hops_pgt_info[i] = hl_mmu_v2_hr_get_hop0_pgt_info(ctx);
+		else
+			hops_pgt_info[i] = hl_mmu_hr_get_next_hop_pgt_info(ctx,
+					&ctx->hdev->mmu_func[MMU_HR_PGT].hr_funcs, curr_pte);
+		if (!hops_pgt_info[i])
+			goto not_mapped;
+
+		hop_pte_phys_addr[i] = hl_mmu_get_hop_pte_phys_addr(ctx, mmu_prop, i,
+									hops_pgt_info[i]->phys_addr,
+									scrambled_virt_addr);
+		if (hop_pte_phys_addr[i] == U64_MAX)
+			return -EFAULT;
+
+		curr_pte = *(u64 *) (uintptr_t) hl_mmu_hr_pte_phys_to_virt(ctx, hops_pgt_info[i],
+							hop_pte_phys_addr[i],
+							ctx->hdev->asic_prop.mmu_hop_table_size);
+
+		if ((i < hop_last) && (curr_pte & mmu_prop->last_mask)) {
+			hop_last = i;
+			is_huge = true;
+			break;
+		}
+	}
+
+	if (is_dram_addr && !is_huge) {
+		dev_err(hdev->dev, "DRAM unmapping should use huge pages only\n");
+		return -EFAULT;
+	}
+
+	if (!(curr_pte & PAGE_PRESENT_MASK))
+		goto not_mapped;
+
+	for (i = hop_last ; i > 0 ; i--) {
+		hl_mmu_hr_clear_pte(ctx, hops_pgt_info[i], hop_pte_phys_addr[i],
+						ctx->hdev->asic_prop.mmu_hop_table_size);
+
+		if (hl_mmu_hr_put_pte(ctx, hops_pgt_info[i], &ctx->hdev->mmu_priv.hr,
+						ctx->hdev->asic_prop.mmu_hop_table_size))
+			goto mapped;
+	}
+	hl_mmu_hr_clear_pte(ctx, hops_pgt_info[0], hop_pte_phys_addr[0],
+						ctx->hdev->asic_prop.mmu_hop_table_size);
+
+mapped:
+	return 0;
+
+not_mapped:
+	dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n", virt_addr);
+
+	return -EINVAL;
+}
+
+static int hl_mmu_v2_get_last_hop(struct hl_mmu_properties *mmu_prop, u32 page_size)
+{
+	int hop;
+
+	for (hop = (mmu_prop->num_hops - 1); hop; hop--) {
+		if (mmu_prop->hop_shifts[hop] == 0)
+			continue;
+
+		if (page_size <= (1 << mmu_prop->hop_shifts[hop]))
+			break;
+	}
+
+	return hop;
+}
+
+static int _hl_mmu_v2_hr_map(struct hl_ctx *ctx,
+			u64 virt_addr, u64 phys_addr,
+			u32 page_size, bool is_dram_addr)
+{
+	u64 hop_pte_phys_addr[MMU_ARCH_6_HOPS] = { 0 },
+		curr_pte = 0, scrambled_virt_addr, scrambled_phys_addr;
+	struct pgt_info *hops_pgt_info[MMU_ARCH_6_HOPS] = { NULL };
+	bool hop_new[MMU_ARCH_6_HOPS] = { false };
+	struct hl_device *hdev = ctx->hdev;
+	struct asic_fixed_properties *prop = &hdev->asic_prop;
+	struct hl_mmu_properties *mmu_prop;
+	int i, hop_last, rc = -ENOMEM;
+
+	/*
+	 * This mapping function can map a page or a huge page. For huge page
+	 * there are only 4 hops rather than 5. Currently the DRAM allocation
+	 * uses huge pages only but user memory could have been allocated with
+	 * one of the two page sizes. Since this is a common code for all the
+	 * three cases, we need this hugs page check.
+	 */
+	if (is_dram_addr)
+		mmu_prop = &prop->dmmu;
+	else if (page_size == prop->pmmu_huge.page_size)
+		mmu_prop = &prop->pmmu_huge;
+	else
+		mmu_prop = &prop->pmmu;
+
+	hop_last = hl_mmu_v2_get_last_hop(mmu_prop, page_size);
+	if (hop_last <= 0) {
+		dev_err(ctx->hdev->dev, "Invalid last HOP %d\n", hop_last);
+		return -EFAULT;
+	}
+
+	scrambled_virt_addr = hdev->asic_funcs->scramble_addr(hdev, virt_addr);
+	scrambled_phys_addr = hdev->asic_funcs->scramble_addr(hdev, phys_addr);
+
+	for (i = 0 ; i <= hop_last ; i++) {
+
+		if (i == 0)
+			hops_pgt_info[i] = hl_mmu_v2_hr_get_hop0_pgt_info(ctx);
+		else
+			hops_pgt_info[i] = hl_mmu_hr_get_alloc_next_hop(ctx,
+							&ctx->hdev->mmu_priv.hr,
+							&ctx->hdev->mmu_func[MMU_HR_PGT].hr_funcs,
+							mmu_prop, curr_pte, &hop_new[i]);
+		if (!hops_pgt_info[i])
+			goto err;
+
+		hop_pte_phys_addr[i] = hl_mmu_get_hop_pte_phys_addr(ctx, mmu_prop, i,
+									hops_pgt_info[i]->phys_addr,
+									scrambled_virt_addr);
+		curr_pte = *(u64 *) (uintptr_t) hl_mmu_hr_pte_phys_to_virt(ctx, hops_pgt_info[i],
+							hop_pte_phys_addr[i],
+							ctx->hdev->asic_prop.mmu_hop_table_size);
+	}
+
+	if (curr_pte & PAGE_PRESENT_MASK) {
+		dev_err(hdev->dev, "mapping already exists for virt_addr 0x%llx\n",
+									scrambled_virt_addr);
+
+		for (i = 0 ; i <= hop_last ; i++)
+			dev_dbg(hdev->dev, "hop%d pte: 0x%llx (0x%llx)\n",
+					i,
+					*(u64 *) (uintptr_t)
+					hl_mmu_hr_pte_phys_to_virt(ctx, hops_pgt_info[i],
+							hop_pte_phys_addr[i],
+							ctx->hdev->asic_prop.mmu_hop_table_size),
+					hop_pte_phys_addr[i]);
+		rc = -EINVAL;
+		goto err;
+	}
+
+	curr_pte = (scrambled_phys_addr & HOP_PHYS_ADDR_MASK) | mmu_prop->last_mask
+			| PAGE_PRESENT_MASK;
+
+	/* Write the PTEs */
+	hl_mmu_hr_write_pte(ctx, hops_pgt_info[hop_last], hop_pte_phys_addr[hop_last], curr_pte,
+							ctx->hdev->asic_prop.mmu_hop_table_size);
+
+	/* for each new hop, add its address to the table of previous-hop */
+	for (i = 1 ; i <= hop_last ; i++) {
+		if (hop_new[i]) {
+			curr_pte = (hops_pgt_info[i]->phys_addr & HOP_PHYS_ADDR_MASK) |
+							PAGE_PRESENT_MASK;
+			hl_mmu_hr_write_pte(ctx, hops_pgt_info[i - 1], hop_pte_phys_addr[i - 1],
+						curr_pte, ctx->hdev->asic_prop.mmu_hop_table_size);
+			if (i - 1)
+				hl_mmu_hr_get_pte(ctx, &ctx->hdev->mmu_func[MMU_HR_PGT].hr_funcs,
+								hops_pgt_info[i - 1]->phys_addr);
+		}
+	}
+
+	hl_mmu_hr_get_pte(ctx, &ctx->hdev->mmu_func[MMU_HR_PGT].hr_funcs,
+						hops_pgt_info[hop_last]->phys_addr);
+
+	return 0;
+
+err:
+	for (i = 1 ; i <= hop_last ; i++)
+		if (hop_new[i] && hops_pgt_info[i])
+			hl_mmu_hr_free_hop_remove_pgt(hops_pgt_info[i], &ctx->hdev->mmu_priv.hr,
+							ctx->hdev->asic_prop.mmu_hop_table_size);
+
+	return rc;
+}
+
+/*
+ * hl_mmu_v2_swap_out - marks all mapping of the given ctx as swapped out
+ *
+ * @ctx: pointer to the context structure
+ *
+ */
+static void hl_mmu_v2_hr_swap_out(struct hl_ctx *ctx)
+{
+
+}
+
+/*
+ * hl_mmu_v2_swap_in - marks all mapping of the given ctx as swapped in
+ *
+ * @ctx: pointer to the context structure
+ *
+ */
+static void hl_mmu_v2_hr_swap_in(struct hl_ctx *ctx)
+{
+
+}
+
+static int hl_mmu_v2_hr_get_tlb_mapping_params(struct hl_device *hdev,
+							struct hl_mmu_properties **mmu_prop,
+							struct hl_mmu_hop_info *hops,
+							u64 virt_addr, bool *is_huge)
+{
+	struct asic_fixed_properties *prop = &hdev->asic_prop;
+	bool is_dram_addr, is_pmmu_addr, is_pmmu_h_addr;
+
+	is_dram_addr = hl_mem_area_inside_range(virt_addr, prop->dmmu.page_size,
+						prop->dmmu.start_addr,
+						prop->dmmu.end_addr);
+	is_pmmu_addr = hl_mem_area_inside_range(virt_addr, prop->pmmu.page_size,
+						prop->pmmu.start_addr,
+						prop->pmmu.end_addr);
+	is_pmmu_h_addr = hl_mem_area_inside_range(virt_addr,
+						prop->pmmu_huge.page_size,
+						prop->pmmu_huge.start_addr,
+						prop->pmmu_huge.end_addr);
+	if (is_dram_addr) {
+		*mmu_prop = &prop->dmmu;
+		*is_huge = true;
+		hops->range_type = HL_VA_RANGE_TYPE_DRAM;
+	} else if (is_pmmu_addr) {
+		*mmu_prop = &prop->pmmu;
+		*is_huge = false;
+		hops->range_type = HL_VA_RANGE_TYPE_HOST;
+	} else if (is_pmmu_h_addr) {
+		*mmu_prop = &prop->pmmu_huge;
+		*is_huge = true;
+		hops->range_type = HL_VA_RANGE_TYPE_HOST_HUGE;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int hl_mmu_v2_hr_get_tlb_info(struct hl_ctx *ctx, u64 virt_addr,
+					struct hl_mmu_hop_info *hops)
+{
+	return hl_mmu_hr_get_tlb_info(ctx, virt_addr, hops,
+					&ctx->hdev->mmu_func[MMU_HR_PGT].hr_funcs);
+}
+
+/*
+ * hl_mmu_v2_prepare - prepare mmu_if for working with mmu v2
+ *
+ * @hdev: pointer to the device structure
+ * @mmu_if: pointer to the mmu interface structure
+ */
+void hl_mmu_v2_hr_set_funcs(struct hl_device *hdev, struct hl_mmu_funcs *mmu)
+{
+	mmu->init = hl_mmu_v2_hr_init;
+	mmu->fini = hl_mmu_v2_hr_fini;
+	mmu->ctx_init = hl_mmu_v2_hr_ctx_init;
+	mmu->ctx_fini = hl_mmu_v2_hr_ctx_fini;
+	mmu->map = _hl_mmu_v2_hr_map;
+	mmu->unmap = _hl_mmu_v2_hr_unmap;
+	mmu->flush = hl_mmu_hr_flush;
+	mmu->swap_out = hl_mmu_v2_hr_swap_out;
+	mmu->swap_in = hl_mmu_v2_hr_swap_in;
+	mmu->get_tlb_info = hl_mmu_v2_hr_get_tlb_info;
+	mmu->hr_funcs.get_hop0_pgt_info = hl_mmu_v2_hr_get_hop0_pgt_info;
+	mmu->hr_funcs.get_pgt_info = hl_mmu_v2_hr_get_pgt_info;
+	mmu->hr_funcs.add_pgt_info = hl_mmu_v2_hr_add_pgt_info;
+	mmu->hr_funcs.get_tlb_mapping_params = hl_mmu_v2_hr_get_tlb_mapping_params;
+}