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, 387 insertions, 0 deletions

diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
new file mode 100644
index 000000000..e43f6d716
--- /dev/null
+++ b/arch/arm/mm/proc-macros.S
@@ -0,0 +1,387 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * We need constants.h for:
+ *  VMA_VM_MM
+ *  VMA_VM_FLAGS
+ *  VM_EXEC
+ */
+#include <asm/asm-offsets.h>
+#include <asm/pgtable.h>
+#include <asm/thread_info.h>
+
+#ifdef CONFIG_CPU_V7M
+#include <asm/v7m.h>
+#endif
+
+/*
+ * vma_vm_mm - get mm pointer from vma pointer (vma->vm_mm)
+ */
+	.macro	vma_vm_mm, rd, rn
+	ldr	\rd, [\rn, #VMA_VM_MM]
+	.endm
+
+/*
+ * vma_vm_flags - get vma->vm_flags
+ */
+	.macro	vma_vm_flags, rd, rn
+	ldr	\rd, [\rn, #VMA_VM_FLAGS]
+	.endm
+
+/*
+ * act_mm - get current->active_mm
+ */
+	.macro	act_mm, rd
+	get_current \rd
+	.if (TSK_ACTIVE_MM > IMM12_MASK)
+	add	\rd, \rd, #TSK_ACTIVE_MM & ~IMM12_MASK
+	.endif
+	ldr	\rd, [\rd, #TSK_ACTIVE_MM & IMM12_MASK]
+	.endm
+
+/*
+ * mmid - get context id from mm pointer (mm->context.id)
+ * note, this field is 64bit, so in big-endian the two words are swapped too.
+ */
+	.macro	mmid, rd, rn
+#ifdef __ARMEB__
+	ldr	\rd, [\rn, #MM_CONTEXT_ID + 4 ]
+#else
+	ldr	\rd, [\rn, #MM_CONTEXT_ID]
+#endif
+	.endm
+
+/*
+ * mask_asid - mask the ASID from the context ID
+ */
+	.macro	asid, rd, rn
+	and	\rd, \rn, #255
+	.endm
+
+	.macro	crval, clear, mmuset, ucset
+#ifdef CONFIG_MMU
+	.word	\clear
+	.word	\mmuset
+#else
+	.word	\clear
+	.word	\ucset
+#endif
+	.endm
+
+/*
+ * dcache_line_size - get the minimum D-cache line size from the CTR register
+ * on ARMv7.
+ */
+	.macro	dcache_line_size, reg, tmp
+#ifdef CONFIG_CPU_V7M
+	movw	\tmp, #:lower16:BASEADDR_V7M_SCB + V7M_SCB_CTR
+	movt	\tmp, #:upper16:BASEADDR_V7M_SCB + V7M_SCB_CTR
+	ldr     \tmp, [\tmp]
+#else
+	mrc	p15, 0, \tmp, c0, c0, 1		@ read ctr
+#endif
+	lsr	\tmp, \tmp, #16
+	and	\tmp, \tmp, #0xf		@ cache line size encoding
+	mov	\reg, #4			@ bytes per word
+	mov	\reg, \reg, lsl \tmp		@ actual cache line size
+	.endm
+
+/*
+ * icache_line_size - get the minimum I-cache line size from the CTR register
+ * on ARMv7.
+ */
+	.macro	icache_line_size, reg, tmp
+#ifdef CONFIG_CPU_V7M
+	movw	\tmp, #:lower16:BASEADDR_V7M_SCB + V7M_SCB_CTR
+	movt	\tmp, #:upper16:BASEADDR_V7M_SCB + V7M_SCB_CTR
+	ldr     \tmp, [\tmp]
+#else
+	mrc	p15, 0, \tmp, c0, c0, 1		@ read ctr
+#endif
+	and	\tmp, \tmp, #0xf		@ cache line size encoding
+	mov	\reg, #4			@ bytes per word
+	mov	\reg, \reg, lsl \tmp		@ actual cache line size
+	.endm
+
+/*
+ * Sanity check the PTE configuration for the code below - which makes
+ * certain assumptions about how these bits are laid out.
+ */
+#ifdef CONFIG_MMU
+#if L_PTE_SHARED != PTE_EXT_SHARED
+#error PTE shared bit mismatch
+#endif
+#if !defined (CONFIG_ARM_LPAE) && \
+	(L_PTE_XN+L_PTE_USER+L_PTE_RDONLY+L_PTE_DIRTY+L_PTE_YOUNG+\
+	 L_PTE_PRESENT) > L_PTE_SHARED
+#error Invalid Linux PTE bit settings
+#endif
+#endif	/* CONFIG_MMU */
+
+/*
+ * The ARMv6 and ARMv7 set_pte_ext translation function.
+ *
+ * Permission translation:
+ *  YUWD  APX AP1 AP0	SVC	User
+ *  0xxx   0   0   0	no acc	no acc
+ *  100x   1   0   1	r/o	no acc
+ *  10x0   1   0   1	r/o	no acc
+ *  1011   0   0   1	r/w	no acc
+ *  110x   1   1   1	r/o	r/o
+ *  11x0   1   1   1	r/o	r/o
+ *  1111   0   1   1	r/w	r/w
+ */
+	.macro	armv6_mt_table pfx
+\pfx\()_mt_table:
+	.long	0x00						@ L_PTE_MT_UNCACHED
+	.long	PTE_EXT_TEX(1)					@ L_PTE_MT_BUFFERABLE
+	.long	PTE_CACHEABLE					@ L_PTE_MT_WRITETHROUGH
+	.long	PTE_CACHEABLE | PTE_BUFFERABLE			@ L_PTE_MT_WRITEBACK
+	.long	PTE_BUFFERABLE					@ L_PTE_MT_DEV_SHARED
+	.long	0x00						@ unused
+	.long	0x00						@ L_PTE_MT_MINICACHE (not present)
+	.long	PTE_EXT_TEX(1) | PTE_CACHEABLE | PTE_BUFFERABLE	@ L_PTE_MT_WRITEALLOC
+	.long	0x00						@ unused
+	.long	PTE_EXT_TEX(1)					@ L_PTE_MT_DEV_WC
+	.long	0x00						@ unused
+	.long	PTE_CACHEABLE | PTE_BUFFERABLE			@ L_PTE_MT_DEV_CACHED
+	.long	PTE_EXT_TEX(2)					@ L_PTE_MT_DEV_NONSHARED
+	.long	0x00						@ unused
+	.long	0x00						@ unused
+	.long	PTE_CACHEABLE | PTE_BUFFERABLE | PTE_EXT_APX	@ L_PTE_MT_VECTORS
+	.endm
+
+	.macro	armv6_set_pte_ext pfx
+	str	r1, [r0], #2048			@ linux version
+
+	bic	r3, r1, #0x000003fc
+	bic	r3, r3, #PTE_TYPE_MASK
+	orr	r3, r3, r2
+	orr	r3, r3, #PTE_EXT_AP0 | 2
+
+	adr	ip, \pfx\()_mt_table
+	and	r2, r1, #L_PTE_MT_MASK
+	ldr	r2, [ip, r2]
+
+	eor	r1, r1, #L_PTE_DIRTY
+	tst	r1, #L_PTE_DIRTY|L_PTE_RDONLY
+	orrne	r3, r3, #PTE_EXT_APX
+
+	tst	r1, #L_PTE_USER
+	orrne	r3, r3, #PTE_EXT_AP1
+	tstne	r3, #PTE_EXT_APX
+
+	@ user read-only -> kernel read-only
+	bicne	r3, r3, #PTE_EXT_AP0
+
+	tst	r1, #L_PTE_XN
+	orrne	r3, r3, #PTE_EXT_XN
+
+	eor	r3, r3, r2
+
+	tst	r1, #L_PTE_YOUNG
+	tstne	r1, #L_PTE_PRESENT
+	moveq	r3, #0
+	tstne	r1, #L_PTE_NONE
+	movne	r3, #0
+
+	str	r3, [r0]
+	mcr	p15, 0, r0, c7, c10, 1		@ flush_pte
+	.endm
+
+
+/*
+ * The ARMv3, ARMv4 and ARMv5 set_pte_ext translation function,
+ * covering most CPUs except Xscale and Xscale 3.
+ *
+ * Permission translation:
+ *  YUWD   AP	SVC	User
+ *  0xxx  0x00	no acc	no acc
+ *  100x  0x00	r/o	no acc
+ *  10x0  0x00	r/o	no acc
+ *  1011  0x55	r/w	no acc
+ *  110x  0xaa	r/w	r/o
+ *  11x0  0xaa	r/w	r/o
+ *  1111  0xff	r/w	r/w
+ */
+	.macro	armv3_set_pte_ext wc_disable=1
+	str	r1, [r0], #2048			@ linux version
+
+	eor	r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY
+
+	bic	r2, r1, #PTE_SMALL_AP_MASK	@ keep C, B bits
+	bic	r2, r2, #PTE_TYPE_MASK
+	orr	r2, r2, #PTE_TYPE_SMALL
+
+	tst	r3, #L_PTE_USER			@ user?
+	orrne	r2, r2, #PTE_SMALL_AP_URO_SRW
+
+	tst	r3, #L_PTE_RDONLY | L_PTE_DIRTY	@ write and dirty?
+	orreq	r2, r2, #PTE_SMALL_AP_UNO_SRW
+
+	tst	r3, #L_PTE_PRESENT | L_PTE_YOUNG	@ present and young?
+	movne	r2, #0
+
+	.if	\wc_disable
+#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
+	tst	r2, #PTE_CACHEABLE
+	bicne	r2, r2, #PTE_BUFFERABLE
+#endif
+	.endif
+	str	r2, [r0]		@ hardware version
+	.endm
+
+
+/*
+ * Xscale set_pte_ext translation, split into two halves to cope
+ * with work-arounds.  r3 must be preserved by code between these
+ * two macros.
+ *
+ * Permission translation:
+ *  YUWD  AP	SVC	User
+ *  0xxx  00	no acc	no acc
+ *  100x  00	r/o	no acc
+ *  10x0  00	r/o	no acc
+ *  1011  01	r/w	no acc
+ *  110x  10	r/w	r/o
+ *  11x0  10	r/w	r/o
+ *  1111  11	r/w	r/w
+ */
+	.macro	xscale_set_pte_ext_prologue
+	str	r1, [r0]			@ linux version
+
+	eor	r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY
+
+	bic	r2, r1, #PTE_SMALL_AP_MASK	@ keep C, B bits
+	orr	r2, r2, #PTE_TYPE_EXT		@ extended page
+
+	tst	r3, #L_PTE_USER			@ user?
+	orrne	r2, r2, #PTE_EXT_AP_URO_SRW	@ yes -> user r/o, system r/w
+
+	tst	r3, #L_PTE_RDONLY | L_PTE_DIRTY	@ write and dirty?
+	orreq	r2, r2, #PTE_EXT_AP_UNO_SRW	@ yes -> user n/a, system r/w
+						@ combined with user -> user r/w
+	.endm
+
+	.macro	xscale_set_pte_ext_epilogue
+	tst	r3, #L_PTE_PRESENT | L_PTE_YOUNG	@ present and young?
+	movne	r2, #0				@ no -> fault
+
+	str	r2, [r0, #2048]!		@ hardware version
+	mov	ip, #0
+	mcr	p15, 0, r0, c7, c10, 1		@ clean L1 D line
+	mcr	p15, 0, ip, c7, c10, 4		@ data write barrier
+	.endm
+
+.macro define_processor_functions name:req, dabort:req, pabort:req, nommu=0, suspend=0, bugs=0
+/*
+ * If we are building for big.Little with branch predictor hardening,
+ * we need the processor function tables to remain available after boot.
+ */
+#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
+	.section ".rodata"
+#endif
+	.type	\name\()_processor_functions, #object
+	.align 2
+ENTRY(\name\()_processor_functions)
+	.word	\dabort
+	.word	\pabort
+	.word	cpu_\name\()_proc_init
+	.word	\bugs
+	.word	cpu_\name\()_proc_fin
+	.word	cpu_\name\()_reset
+	.word	cpu_\name\()_do_idle
+	.word	cpu_\name\()_dcache_clean_area
+	.word	cpu_\name\()_switch_mm
+
+	.if \nommu
+	.word	0
+	.else
+	.word	cpu_\name\()_set_pte_ext
+	.endif
+
+	.if \suspend
+	.word	cpu_\name\()_suspend_size
+#ifdef CONFIG_ARM_CPU_SUSPEND
+	.word	cpu_\name\()_do_suspend
+	.word	cpu_\name\()_do_resume
+#else
+	.word	0
+	.word	0
+#endif
+	.else
+	.word	0
+	.word	0
+	.word	0
+	.endif
+
+	.size	\name\()_processor_functions, . - \name\()_processor_functions
+#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
+	.previous
+#endif
+.endm
+
+.macro define_cache_functions name:req
+	.align 2
+	.type	\name\()_cache_fns, #object
+ENTRY(\name\()_cache_fns)
+	.long	\name\()_flush_icache_all
+	.long	\name\()_flush_kern_cache_all
+	.long   \name\()_flush_kern_cache_louis
+	.long	\name\()_flush_user_cache_all
+	.long	\name\()_flush_user_cache_range
+	.long	\name\()_coherent_kern_range
+	.long	\name\()_coherent_user_range
+	.long	\name\()_flush_kern_dcache_area
+	.long	\name\()_dma_map_area
+	.long	\name\()_dma_unmap_area
+	.long	\name\()_dma_flush_range
+	.size	\name\()_cache_fns, . - \name\()_cache_fns
+.endm
+
+.macro define_tlb_functions name:req, flags_up:req, flags_smp
+	.type	\name\()_tlb_fns, #object
+	.align 2
+ENTRY(\name\()_tlb_fns)
+	.long	\name\()_flush_user_tlb_range
+	.long	\name\()_flush_kern_tlb_range
+	.ifnb \flags_smp
+		ALT_SMP(.long	\flags_smp )
+		ALT_UP(.long	\flags_up )
+	.else
+		.long	\flags_up
+	.endif
+	.size	\name\()_tlb_fns, . - \name\()_tlb_fns
+.endm
+
+.macro globl_equ x, y
+	.globl	\x
+	.equ	\x, \y
+.endm
+
+.macro	initfn, func, base
+	.long	\func - \base
+.endm
+
+	/*
+	 * Macro to calculate the log2 size for the protection region
+	 * registers. This calculates rd = log2(size) - 1.  tmp must
+	 * not be the same register as rd.
+	 */
+.macro	pr_sz, rd, size, tmp
+	mov	\tmp, \size, lsr #12
+	mov	\rd, #11
+1:	movs	\tmp, \tmp, lsr #1
+	addne	\rd, \rd, #1
+	bne	1b
+.endm
+
+	/*
+	 * Macro to generate a protection region register value
+	 * given a pre-masked address, size, and enable bit.
+	 * Corrupts size.
+	 */
+.macro	pr_val, dest, addr, size, enable
+	pr_sz	\dest, \size, \size		@ calculate log2(size) - 1
+	orr	\dest, \addr, \dest, lsl #1	@ mask in the region size
+	orr	\dest, \dest, \enable
+.endm