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, 415 insertions, 0 deletions

diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c
new file mode 100644
index 000000000..8638ddf6f
--- /dev/null
+++ b/drivers/iommu/amd/io_pgtable_v2.c
@@ -0,0 +1,415 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * CPU-agnostic AMD IO page table v2 allocator.
+ *
+ * Copyright (C) 2022 Advanced Micro Devices, Inc.
+ * Author: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
+ * Author: Vasant Hegde <vasant.hegde@amd.com>
+ */
+
+#define pr_fmt(fmt)	"AMD-Vi: " fmt
+#define dev_fmt(fmt)	pr_fmt(fmt)
+
+#include <linux/bitops.h>
+#include <linux/io-pgtable.h>
+#include <linux/kernel.h>
+
+#include <asm/barrier.h>
+
+#include "amd_iommu_types.h"
+#include "amd_iommu.h"
+
+#define IOMMU_PAGE_PRESENT	BIT_ULL(0)	/* Is present */
+#define IOMMU_PAGE_RW		BIT_ULL(1)	/* Writeable */
+#define IOMMU_PAGE_USER		BIT_ULL(2)	/* Userspace addressable */
+#define IOMMU_PAGE_PWT		BIT_ULL(3)	/* Page write through */
+#define IOMMU_PAGE_PCD		BIT_ULL(4)	/* Page cache disabled */
+#define IOMMU_PAGE_ACCESS	BIT_ULL(5)	/* Was accessed (updated by IOMMU) */
+#define IOMMU_PAGE_DIRTY	BIT_ULL(6)	/* Was written to (updated by IOMMU) */
+#define IOMMU_PAGE_PSE		BIT_ULL(7)	/* Page Size Extensions */
+#define IOMMU_PAGE_NX		BIT_ULL(63)	/* No execute */
+
+#define MAX_PTRS_PER_PAGE	512
+
+#define IOMMU_PAGE_SIZE_2M	BIT_ULL(21)
+#define IOMMU_PAGE_SIZE_1G	BIT_ULL(30)
+
+
+static inline int get_pgtable_level(void)
+{
+	/* 5 level page table is not supported */
+	return PAGE_MODE_4_LEVEL;
+}
+
+static inline bool is_large_pte(u64 pte)
+{
+	return (pte & IOMMU_PAGE_PSE);
+}
+
+static inline void *alloc_pgtable_page(void)
+{
+	return (void *)get_zeroed_page(GFP_KERNEL);
+}
+
+static inline u64 set_pgtable_attr(u64 *page)
+{
+	u64 prot;
+
+	prot = IOMMU_PAGE_PRESENT | IOMMU_PAGE_RW | IOMMU_PAGE_USER;
+	prot |= IOMMU_PAGE_ACCESS | IOMMU_PAGE_DIRTY;
+
+	return (iommu_virt_to_phys(page) | prot);
+}
+
+static inline void *get_pgtable_pte(u64 pte)
+{
+	return iommu_phys_to_virt(pte & PM_ADDR_MASK);
+}
+
+static u64 set_pte_attr(u64 paddr, u64 pg_size, int prot)
+{
+	u64 pte;
+
+	pte = __sme_set(paddr & PM_ADDR_MASK);
+	pte |= IOMMU_PAGE_PRESENT | IOMMU_PAGE_USER;
+	pte |= IOMMU_PAGE_ACCESS | IOMMU_PAGE_DIRTY;
+
+	if (prot & IOMMU_PROT_IW)
+		pte |= IOMMU_PAGE_RW;
+
+	/* Large page */
+	if (pg_size == IOMMU_PAGE_SIZE_1G || pg_size == IOMMU_PAGE_SIZE_2M)
+		pte |= IOMMU_PAGE_PSE;
+
+	return pte;
+}
+
+static inline u64 get_alloc_page_size(u64 size)
+{
+	if (size >= IOMMU_PAGE_SIZE_1G)
+		return IOMMU_PAGE_SIZE_1G;
+
+	if (size >= IOMMU_PAGE_SIZE_2M)
+		return IOMMU_PAGE_SIZE_2M;
+
+	return PAGE_SIZE;
+}
+
+static inline int page_size_to_level(u64 pg_size)
+{
+	if (pg_size == IOMMU_PAGE_SIZE_1G)
+		return PAGE_MODE_3_LEVEL;
+	if (pg_size == IOMMU_PAGE_SIZE_2M)
+		return PAGE_MODE_2_LEVEL;
+
+	return PAGE_MODE_1_LEVEL;
+}
+
+static inline void free_pgtable_page(u64 *pt)
+{
+	free_page((unsigned long)pt);
+}
+
+static void free_pgtable(u64 *pt, int level)
+{
+	u64 *p;
+	int i;
+
+	for (i = 0; i < MAX_PTRS_PER_PAGE; i++) {
+		/* PTE present? */
+		if (!IOMMU_PTE_PRESENT(pt[i]))
+			continue;
+
+		if (is_large_pte(pt[i]))
+			continue;
+
+		/*
+		 * Free the next level. No need to look at l1 tables here since
+		 * they can only contain leaf PTEs; just free them directly.
+		 */
+		p = get_pgtable_pte(pt[i]);
+		if (level > 2)
+			free_pgtable(p, level - 1);
+		else
+			free_pgtable_page(p);
+	}
+
+	free_pgtable_page(pt);
+}
+
+/* Allocate page table */
+static u64 *v2_alloc_pte(u64 *pgd, unsigned long iova,
+			 unsigned long pg_size, bool *updated)
+{
+	u64 *pte, *page;
+	int level, end_level;
+
+	level = get_pgtable_level() - 1;
+	end_level = page_size_to_level(pg_size);
+	pte = &pgd[PM_LEVEL_INDEX(level, iova)];
+	iova = PAGE_SIZE_ALIGN(iova, PAGE_SIZE);
+
+	while (level >= end_level) {
+		u64 __pte, __npte;
+
+		__pte = *pte;
+
+		if (IOMMU_PTE_PRESENT(__pte) && is_large_pte(__pte)) {
+			/* Unmap large pte */
+			cmpxchg64(pte, *pte, 0ULL);
+			*updated = true;
+			continue;
+		}
+
+		if (!IOMMU_PTE_PRESENT(__pte)) {
+			page = alloc_pgtable_page();
+			if (!page)
+				return NULL;
+
+			__npte = set_pgtable_attr(page);
+			/* pte could have been changed somewhere. */
+			if (cmpxchg64(pte, __pte, __npte) != __pte)
+				free_pgtable_page(page);
+			else if (IOMMU_PTE_PRESENT(__pte))
+				*updated = true;
+
+			continue;
+		}
+
+		level -= 1;
+		pte = get_pgtable_pte(__pte);
+		pte = &pte[PM_LEVEL_INDEX(level, iova)];
+	}
+
+	/* Tear down existing pte entries */
+	if (IOMMU_PTE_PRESENT(*pte)) {
+		u64 *__pte;
+
+		*updated = true;
+		__pte = get_pgtable_pte(*pte);
+		cmpxchg64(pte, *pte, 0ULL);
+		if (pg_size == IOMMU_PAGE_SIZE_1G)
+			free_pgtable(__pte, end_level - 1);
+		else if (pg_size == IOMMU_PAGE_SIZE_2M)
+			free_pgtable_page(__pte);
+	}
+
+	return pte;
+}
+
+/*
+ * This function checks if there is a PTE for a given dma address.
+ * If there is one, it returns the pointer to it.
+ */
+static u64 *fetch_pte(struct amd_io_pgtable *pgtable,
+		      unsigned long iova, unsigned long *page_size)
+{
+	u64 *pte;
+	int level;
+
+	level = get_pgtable_level() - 1;
+	pte = &pgtable->pgd[PM_LEVEL_INDEX(level, iova)];
+	/* Default page size is 4K */
+	*page_size = PAGE_SIZE;
+
+	while (level) {
+		/* Not present */
+		if (!IOMMU_PTE_PRESENT(*pte))
+			return NULL;
+
+		/* Walk to the next level */
+		pte = get_pgtable_pte(*pte);
+		pte = &pte[PM_LEVEL_INDEX(level - 1, iova)];
+
+		/* Large page */
+		if (is_large_pte(*pte)) {
+			if (level == PAGE_MODE_3_LEVEL)
+				*page_size = IOMMU_PAGE_SIZE_1G;
+			else if (level == PAGE_MODE_2_LEVEL)
+				*page_size = IOMMU_PAGE_SIZE_2M;
+			else
+				return NULL;	/* Wrongly set PSE bit in PTE */
+
+			break;
+		}
+
+		level -= 1;
+	}
+
+	return pte;
+}
+
+static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova,
+			      phys_addr_t paddr, size_t pgsize, size_t pgcount,
+			      int prot, gfp_t gfp, size_t *mapped)
+{
+	struct protection_domain *pdom = io_pgtable_ops_to_domain(ops);
+	struct io_pgtable_cfg *cfg = &pdom->iop.iop.cfg;
+	u64 *pte;
+	unsigned long map_size;
+	unsigned long mapped_size = 0;
+	unsigned long o_iova = iova;
+	size_t size = pgcount << __ffs(pgsize);
+	int count = 0;
+	int ret = 0;
+	bool updated = false;
+
+	if (WARN_ON(!pgsize || (pgsize & cfg->pgsize_bitmap) != pgsize) || !pgcount)
+		return -EINVAL;
+
+	if (!(prot & IOMMU_PROT_MASK))
+		return -EINVAL;
+
+	while (mapped_size < size) {
+		map_size = get_alloc_page_size(pgsize);
+		pte = v2_alloc_pte(pdom->iop.pgd, iova, map_size, &updated);
+		if (!pte) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		*pte = set_pte_attr(paddr, map_size, prot);
+
+		count++;
+		iova += map_size;
+		paddr += map_size;
+		mapped_size += map_size;
+	}
+
+out:
+	if (updated) {
+		if (count > 1)
+			amd_iommu_flush_tlb(&pdom->domain, 0);
+		else
+			amd_iommu_flush_page(&pdom->domain, 0, o_iova);
+	}
+
+	if (mapped)
+		*mapped += mapped_size;
+
+	return ret;
+}
+
+static unsigned long iommu_v2_unmap_pages(struct io_pgtable_ops *ops,
+					  unsigned long iova,
+					  size_t pgsize, size_t pgcount,
+					  struct iommu_iotlb_gather *gather)
+{
+	struct amd_io_pgtable *pgtable = io_pgtable_ops_to_data(ops);
+	struct io_pgtable_cfg *cfg = &pgtable->iop.cfg;
+	unsigned long unmap_size;
+	unsigned long unmapped = 0;
+	size_t size = pgcount << __ffs(pgsize);
+	u64 *pte;
+
+	if (WARN_ON(!pgsize || (pgsize & cfg->pgsize_bitmap) != pgsize || !pgcount))
+		return 0;
+
+	while (unmapped < size) {
+		pte = fetch_pte(pgtable, iova, &unmap_size);
+		if (!pte)
+			return unmapped;
+
+		*pte = 0ULL;
+
+		iova = (iova & ~(unmap_size - 1)) + unmap_size;
+		unmapped += unmap_size;
+	}
+
+	return unmapped;
+}
+
+static phys_addr_t iommu_v2_iova_to_phys(struct io_pgtable_ops *ops, unsigned long iova)
+{
+	struct amd_io_pgtable *pgtable = io_pgtable_ops_to_data(ops);
+	unsigned long offset_mask, pte_pgsize;
+	u64 *pte, __pte;
+
+	pte = fetch_pte(pgtable, iova, &pte_pgsize);
+	if (!pte || !IOMMU_PTE_PRESENT(*pte))
+		return 0;
+
+	offset_mask = pte_pgsize - 1;
+	__pte = __sme_clr(*pte & PM_ADDR_MASK);
+
+	return (__pte & ~offset_mask) | (iova & offset_mask);
+}
+
+/*
+ * ----------------------------------------------------
+ */
+static void v2_tlb_flush_all(void *cookie)
+{
+}
+
+static void v2_tlb_flush_walk(unsigned long iova, size_t size,
+			      size_t granule, void *cookie)
+{
+}
+
+static void v2_tlb_add_page(struct iommu_iotlb_gather *gather,
+			    unsigned long iova, size_t granule,
+			    void *cookie)
+{
+}
+
+static const struct iommu_flush_ops v2_flush_ops = {
+	.tlb_flush_all	= v2_tlb_flush_all,
+	.tlb_flush_walk = v2_tlb_flush_walk,
+	.tlb_add_page	= v2_tlb_add_page,
+};
+
+static void v2_free_pgtable(struct io_pgtable *iop)
+{
+	struct protection_domain *pdom;
+	struct amd_io_pgtable *pgtable = container_of(iop, struct amd_io_pgtable, iop);
+
+	pdom = container_of(pgtable, struct protection_domain, iop);
+	if (!(pdom->flags & PD_IOMMUV2_MASK))
+		return;
+
+	/*
+	 * Make changes visible to IOMMUs. No need to clear gcr3 entry
+	 * as gcr3 table is already freed.
+	 */
+	amd_iommu_domain_update(pdom);
+
+	/* Free page table */
+	free_pgtable(pgtable->pgd, get_pgtable_level());
+}
+
+static struct io_pgtable *v2_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie)
+{
+	struct amd_io_pgtable *pgtable = io_pgtable_cfg_to_data(cfg);
+	struct protection_domain *pdom = (struct protection_domain *)cookie;
+	int ret;
+
+	pgtable->pgd = alloc_pgtable_page();
+	if (!pgtable->pgd)
+		return NULL;
+
+	ret = amd_iommu_domain_set_gcr3(&pdom->domain, 0, iommu_virt_to_phys(pgtable->pgd));
+	if (ret)
+		goto err_free_pgd;
+
+	pgtable->iop.ops.map_pages    = iommu_v2_map_pages;
+	pgtable->iop.ops.unmap_pages  = iommu_v2_unmap_pages;
+	pgtable->iop.ops.iova_to_phys = iommu_v2_iova_to_phys;
+
+	cfg->pgsize_bitmap = AMD_IOMMU_PGSIZES_V2,
+	cfg->ias           = IOMMU_IN_ADDR_BIT_SIZE,
+	cfg->oas           = IOMMU_OUT_ADDR_BIT_SIZE,
+	cfg->tlb           = &v2_flush_ops;
+
+	return &pgtable->iop;
+
+err_free_pgd:
+	free_pgtable_page(pgtable->pgd);
+
+	return NULL;
+}
+
+struct io_pgtable_init_fns io_pgtable_amd_iommu_v2_init_fns = {
+	.alloc	= v2_alloc_pgtable,
+	.free	= v2_free_pgtable,
+};