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, 534 insertions, 0 deletions

diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h
new file mode 100644
index 000000000..69a2fc62c
--- /dev/null
+++ b/arch/alpha/include/asm/core_apecs.h
@@ -0,0 +1,534 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_APECS__H__
+#define __ALPHA_APECS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * APECS is the internal name for the 2107x chipset which provides
+ * memory controller and PCI access for the 21064 chip based systems.
+ *
+ * This file is based on:
+ *
+ * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets
+ * Data Sheet
+ *
+ * EC-N0648-72
+ *
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+   An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address
+   that get passed through the PCI<->ISA bridge chip. So we've gotta use
+   both windows to max out the physical memory we can DMA to. Sigh...
+
+   If we try a window at 0 for 1GB as a work-around, we run into conflicts
+   with ISA/PCI bus memory which can't be relocated, like VGA aperture and
+   BIOS ROMs. So we must put the windows high enough to avoid these areas.
+
+   We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1,
+   and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1.
+   Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually
+   be used for that range (via virt_to_bus()).
+
+   Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb,
+   to keep virt_to_bus() from returning an address in the first window, for
+   a data area that goes beyond the 64Mb first DMA window.  Sigh...
+   The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but
+   we can't just use that here, because of header file looping... :-(
+
+   Window 1 will be used for all DMA from the ISA bus; yes, that does
+   limit what memory an ISA floppy or sound card or Ethernet can touch, but
+   it's also a known limitation on other platforms as well. We use the
+   same technique that is used on INTEL platforms with similar limitation:
+   set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init().
+   We trust that any ISA bus device drivers will *always* ask for DMAable
+   memory explicitly via kmalloc()/get_free_pages() flags arguments.
+
+   Note that most PCI bus devices' drivers do *not* explicitly ask for
+   DMAable memory; they count on being able to DMA to any memory they
+   get from kmalloc()/get_free_pages(). They will also use window 1 for
+   any physical memory accesses below 64Mb; the rest will be handled by
+   window 2, maxing out at 1Gb of memory. I trust this is enough... :-)
+
+   We hope that the area before the first window is large enough so that
+   there will be no overlap at the top end (64Mb). We *must* locate the
+   PCI cards' memory just below window 1, so that there's still the
+   possibility of being able to access it via SPARSE space. This is
+   important for cards such as the Matrox Millennium, whose Xserver
+   wants to access memory-mapped registers in byte and short lengths.
+
+   Note that the XL is treated differently from the AVANTI, even though
+   for most other things they are identical. It didn't seem reasonable to
+   make the AVANTI support pay for the limitations of the XL. It is true,
+   however, that an XL kernel will run on an AVANTI without problems.
+
+   %%% All of this should be obviated by the ability to route
+   everything through the iommu.
+*/
+
+/*
+ * 21071-DA Control and Status registers.
+ * These are used for PCI memory access.
+ */
+#define APECS_IOC_DCSR                  (IDENT_ADDR + 0x1A0000000UL)
+#define APECS_IOC_PEAR                  (IDENT_ADDR + 0x1A0000020UL)
+#define APECS_IOC_SEAR                  (IDENT_ADDR + 0x1A0000040UL)
+#define APECS_IOC_DR1                   (IDENT_ADDR + 0x1A0000060UL)
+#define APECS_IOC_DR2                   (IDENT_ADDR + 0x1A0000080UL)
+#define APECS_IOC_DR3                   (IDENT_ADDR + 0x1A00000A0UL)
+
+#define APECS_IOC_TB1R                  (IDENT_ADDR + 0x1A00000C0UL)
+#define APECS_IOC_TB2R                  (IDENT_ADDR + 0x1A00000E0UL)
+
+#define APECS_IOC_PB1R                  (IDENT_ADDR + 0x1A0000100UL)
+#define APECS_IOC_PB2R                  (IDENT_ADDR + 0x1A0000120UL)
+
+#define APECS_IOC_PM1R                  (IDENT_ADDR + 0x1A0000140UL)
+#define APECS_IOC_PM2R                  (IDENT_ADDR + 0x1A0000160UL)
+
+#define APECS_IOC_HAXR0                 (IDENT_ADDR + 0x1A0000180UL)
+#define APECS_IOC_HAXR1                 (IDENT_ADDR + 0x1A00001A0UL)
+#define APECS_IOC_HAXR2                 (IDENT_ADDR + 0x1A00001C0UL)
+
+#define APECS_IOC_PMLT                  (IDENT_ADDR + 0x1A00001E0UL)
+
+#define APECS_IOC_TLBTAG0               (IDENT_ADDR + 0x1A0000200UL)
+#define APECS_IOC_TLBTAG1               (IDENT_ADDR + 0x1A0000220UL)
+#define APECS_IOC_TLBTAG2               (IDENT_ADDR + 0x1A0000240UL)
+#define APECS_IOC_TLBTAG3               (IDENT_ADDR + 0x1A0000260UL)
+#define APECS_IOC_TLBTAG4               (IDENT_ADDR + 0x1A0000280UL)
+#define APECS_IOC_TLBTAG5               (IDENT_ADDR + 0x1A00002A0UL)
+#define APECS_IOC_TLBTAG6               (IDENT_ADDR + 0x1A00002C0UL)
+#define APECS_IOC_TLBTAG7               (IDENT_ADDR + 0x1A00002E0UL)
+
+#define APECS_IOC_TLBDATA0              (IDENT_ADDR + 0x1A0000300UL)
+#define APECS_IOC_TLBDATA1              (IDENT_ADDR + 0x1A0000320UL)
+#define APECS_IOC_TLBDATA2              (IDENT_ADDR + 0x1A0000340UL)
+#define APECS_IOC_TLBDATA3              (IDENT_ADDR + 0x1A0000360UL)
+#define APECS_IOC_TLBDATA4              (IDENT_ADDR + 0x1A0000380UL)
+#define APECS_IOC_TLBDATA5              (IDENT_ADDR + 0x1A00003A0UL)
+#define APECS_IOC_TLBDATA6              (IDENT_ADDR + 0x1A00003C0UL)
+#define APECS_IOC_TLBDATA7              (IDENT_ADDR + 0x1A00003E0UL)
+
+#define APECS_IOC_TBIA                  (IDENT_ADDR + 0x1A0000400UL)
+
+
+/*
+ * 21071-CA Control and Status registers.
+ * These are used to program memory timing,
+ *  configure memory and initialise the B-Cache.
+ */
+#define APECS_MEM_GCR		        (IDENT_ADDR + 0x180000000UL)
+#define APECS_MEM_EDSR		        (IDENT_ADDR + 0x180000040UL)
+#define APECS_MEM_TAR  		        (IDENT_ADDR + 0x180000060UL)
+#define APECS_MEM_ELAR		        (IDENT_ADDR + 0x180000080UL)
+#define APECS_MEM_EHAR  		(IDENT_ADDR + 0x1800000a0UL)
+#define APECS_MEM_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
+#define APECS_MEM_LDxLAR 		(IDENT_ADDR + 0x1800000e0UL)
+#define APECS_MEM_LDxHAR 		(IDENT_ADDR + 0x180000100UL)
+#define APECS_MEM_GTR    		(IDENT_ADDR + 0x180000200UL)
+#define APECS_MEM_RTR    		(IDENT_ADDR + 0x180000220UL)
+#define APECS_MEM_VFPR   		(IDENT_ADDR + 0x180000240UL)
+#define APECS_MEM_PDLDR  		(IDENT_ADDR + 0x180000260UL)
+#define APECS_MEM_PDhDR  		(IDENT_ADDR + 0x180000280UL)
+
+/* Bank x Base Address Register */
+#define APECS_MEM_B0BAR  		(IDENT_ADDR + 0x180000800UL)
+#define APECS_MEM_B1BAR  		(IDENT_ADDR + 0x180000820UL)
+#define APECS_MEM_B2BAR  		(IDENT_ADDR + 0x180000840UL)
+#define APECS_MEM_B3BAR  		(IDENT_ADDR + 0x180000860UL)
+#define APECS_MEM_B4BAR  		(IDENT_ADDR + 0x180000880UL)
+#define APECS_MEM_B5BAR  		(IDENT_ADDR + 0x1800008A0UL)
+#define APECS_MEM_B6BAR  		(IDENT_ADDR + 0x1800008C0UL)
+#define APECS_MEM_B7BAR  		(IDENT_ADDR + 0x1800008E0UL)
+#define APECS_MEM_B8BAR  		(IDENT_ADDR + 0x180000900UL)
+
+/* Bank x Configuration Register */
+#define APECS_MEM_B0BCR  		(IDENT_ADDR + 0x180000A00UL)
+#define APECS_MEM_B1BCR  		(IDENT_ADDR + 0x180000A20UL)
+#define APECS_MEM_B2BCR  		(IDENT_ADDR + 0x180000A40UL)
+#define APECS_MEM_B3BCR  		(IDENT_ADDR + 0x180000A60UL)
+#define APECS_MEM_B4BCR  		(IDENT_ADDR + 0x180000A80UL)
+#define APECS_MEM_B5BCR  		(IDENT_ADDR + 0x180000AA0UL)
+#define APECS_MEM_B6BCR  		(IDENT_ADDR + 0x180000AC0UL)
+#define APECS_MEM_B7BCR  		(IDENT_ADDR + 0x180000AE0UL)
+#define APECS_MEM_B8BCR  		(IDENT_ADDR + 0x180000B00UL)
+
+/* Bank x Timing Register A */
+#define APECS_MEM_B0TRA  		(IDENT_ADDR + 0x180000C00UL)
+#define APECS_MEM_B1TRA  		(IDENT_ADDR + 0x180000C20UL)
+#define APECS_MEM_B2TRA  		(IDENT_ADDR + 0x180000C40UL)
+#define APECS_MEM_B3TRA  		(IDENT_ADDR + 0x180000C60UL)
+#define APECS_MEM_B4TRA  		(IDENT_ADDR + 0x180000C80UL)
+#define APECS_MEM_B5TRA  		(IDENT_ADDR + 0x180000CA0UL)
+#define APECS_MEM_B6TRA  		(IDENT_ADDR + 0x180000CC0UL)
+#define APECS_MEM_B7TRA  		(IDENT_ADDR + 0x180000CE0UL)
+#define APECS_MEM_B8TRA  		(IDENT_ADDR + 0x180000D00UL)
+
+/* Bank x Timing Register B */
+#define APECS_MEM_B0TRB                 (IDENT_ADDR + 0x180000E00UL)
+#define APECS_MEM_B1TRB  		(IDENT_ADDR + 0x180000E20UL)
+#define APECS_MEM_B2TRB  		(IDENT_ADDR + 0x180000E40UL)
+#define APECS_MEM_B3TRB  		(IDENT_ADDR + 0x180000E60UL)
+#define APECS_MEM_B4TRB  		(IDENT_ADDR + 0x180000E80UL)
+#define APECS_MEM_B5TRB  		(IDENT_ADDR + 0x180000EA0UL)
+#define APECS_MEM_B6TRB  		(IDENT_ADDR + 0x180000EC0UL)
+#define APECS_MEM_B7TRB  		(IDENT_ADDR + 0x180000EE0UL)
+#define APECS_MEM_B8TRB  		(IDENT_ADDR + 0x180000F00UL)
+
+
+/*
+ * Memory spaces:
+ */
+#define APECS_IACK_SC		        (IDENT_ADDR + 0x1b0000000UL)
+#define APECS_CONF		        (IDENT_ADDR + 0x1e0000000UL)
+#define APECS_IO			(IDENT_ADDR + 0x1c0000000UL)
+#define APECS_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
+#define APECS_DENSE_MEM		        (IDENT_ADDR + 0x300000000UL)
+
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define APECS_IOC_STAT0_CMD		0xf
+#define APECS_IOC_STAT0_ERR		(1<<4)
+#define APECS_IOC_STAT0_LOST		(1<<5)
+#define APECS_IOC_STAT0_THIT		(1<<6)
+#define APECS_IOC_STAT0_TREF		(1<<7)
+#define APECS_IOC_STAT0_CODE_SHIFT	8
+#define APECS_IOC_STAT0_CODE_MASK	0x7
+#define APECS_IOC_STAT0_P_NBR_SHIFT	13
+#define APECS_IOC_STAT0_P_NBR_MASK	0x7ffff
+
+#define APECS_HAE_ADDRESS		APECS_IOC_HAXR1
+
+
+/*
+ * Data structure for handling APECS machine checks:
+ */
+
+struct el_apecs_mikasa_sysdata_mcheck
+{
+	unsigned long coma_gcr;
+	unsigned long coma_edsr;
+	unsigned long coma_ter;
+	unsigned long coma_elar;
+	unsigned long coma_ehar;
+	unsigned long coma_ldlr;
+	unsigned long coma_ldhr;
+	unsigned long coma_base0;
+	unsigned long coma_base1;
+	unsigned long coma_base2;
+	unsigned long coma_base3;
+	unsigned long coma_cnfg0;
+	unsigned long coma_cnfg1;
+	unsigned long coma_cnfg2;
+	unsigned long coma_cnfg3;
+	unsigned long epic_dcsr;
+	unsigned long epic_pear;
+	unsigned long epic_sear;
+	unsigned long epic_tbr1;
+	unsigned long epic_tbr2;
+	unsigned long epic_pbr1;
+	unsigned long epic_pbr2;
+	unsigned long epic_pmr1;
+	unsigned long epic_pmr2;
+	unsigned long epic_harx1;
+	unsigned long epic_harx2;
+	unsigned long epic_pmlt;
+	unsigned long epic_tag0;
+	unsigned long epic_tag1;
+	unsigned long epic_tag2;
+	unsigned long epic_tag3;
+	unsigned long epic_tag4;
+	unsigned long epic_tag5;
+	unsigned long epic_tag6;
+	unsigned long epic_tag7;
+	unsigned long epic_data0;
+	unsigned long epic_data1;
+	unsigned long epic_data2;
+	unsigned long epic_data3;
+	unsigned long epic_data4;
+	unsigned long epic_data5;
+	unsigned long epic_data6;
+	unsigned long epic_data7;
+
+	unsigned long pceb_vid;
+	unsigned long pceb_did;
+	unsigned long pceb_revision;
+	unsigned long pceb_command;
+	unsigned long pceb_status;
+	unsigned long pceb_latency;
+	unsigned long pceb_control;
+	unsigned long pceb_arbcon;
+	unsigned long pceb_arbpri;
+
+	unsigned long esc_id;
+	unsigned long esc_revision;
+	unsigned long esc_int0;
+	unsigned long esc_int1;
+	unsigned long esc_elcr0;
+	unsigned long esc_elcr1;
+	unsigned long esc_last_eisa;
+	unsigned long esc_nmi_stat;
+
+	unsigned long pci_ir;
+	unsigned long pci_imr;
+	unsigned long svr_mgr;
+};
+
+/* This for the normal APECS machines.  */
+struct el_apecs_sysdata_mcheck
+{
+	unsigned long coma_gcr;
+	unsigned long coma_edsr;
+	unsigned long coma_ter;
+	unsigned long coma_elar;
+	unsigned long coma_ehar;
+	unsigned long coma_ldlr;
+	unsigned long coma_ldhr;
+	unsigned long coma_base0;
+	unsigned long coma_base1;
+	unsigned long coma_base2;
+	unsigned long coma_cnfg0;
+	unsigned long coma_cnfg1;
+	unsigned long coma_cnfg2;
+	unsigned long epic_dcsr;
+	unsigned long epic_pear;
+	unsigned long epic_sear;
+	unsigned long epic_tbr1;
+	unsigned long epic_tbr2;
+	unsigned long epic_pbr1;
+	unsigned long epic_pbr2;
+	unsigned long epic_pmr1;
+	unsigned long epic_pmr2;
+	unsigned long epic_harx1;
+	unsigned long epic_harx2;
+	unsigned long epic_pmlt;
+	unsigned long epic_tag0;
+	unsigned long epic_tag1;
+	unsigned long epic_tag2;
+	unsigned long epic_tag3;
+	unsigned long epic_tag4;
+	unsigned long epic_tag5;
+	unsigned long epic_tag6;
+	unsigned long epic_tag7;
+	unsigned long epic_data0;
+	unsigned long epic_data1;
+	unsigned long epic_data2;
+	unsigned long epic_data3;
+	unsigned long epic_data4;
+	unsigned long epic_data5;
+	unsigned long epic_data6;
+	unsigned long epic_data7;
+};
+
+struct el_apecs_procdata
+{
+	unsigned long paltemp[32];  /* PAL TEMP REGS. */
+	/* EV4-specific fields */
+	unsigned long exc_addr;     /* Address of excepting instruction. */
+	unsigned long exc_sum;      /* Summary of arithmetic traps. */
+	unsigned long exc_mask;     /* Exception mask (from exc_sum). */
+	unsigned long iccsr;        /* IBox hardware enables. */
+	unsigned long pal_base;     /* Base address for PALcode. */
+	unsigned long hier;         /* Hardware Interrupt Enable. */
+	unsigned long hirr;         /* Hardware Interrupt Request. */
+	unsigned long csr;          /* D-stream fault info. */
+	unsigned long dc_stat;      /* D-cache status (ECC/Parity Err). */
+	unsigned long dc_addr;      /* EV3 Phys Addr for ECC/DPERR. */
+	unsigned long abox_ctl;     /* ABox Control Register. */
+	unsigned long biu_stat;     /* BIU Status. */
+	unsigned long biu_addr;     /* BUI Address. */
+	unsigned long biu_ctl;      /* BIU Control. */
+	unsigned long fill_syndrome;/* For correcting ECC errors. */
+	unsigned long fill_addr;    /* Cache block which was being read */
+	unsigned long va;           /* Effective VA of fault or miss. */
+	unsigned long bc_tag;       /* Backup Cache Tag Probe Results.*/
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the APECS machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here.  In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+#define APECS_SET_HAE						\
+	do {							\
+		if (addr >= (1UL << 24)) {			\
+			unsigned long msb = addr & 0xf8000000;	\
+			addr -= msb;				\
+			set_hae(msb);				\
+		}						\
+	} while (0)
+
+__EXTERN_INLINE u8 apecs_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x00;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x00;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x00;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x00;
+	}
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 apecs_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x08;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x08;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x08;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x08;
+	}
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 apecs_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 apecs_ioread64(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	return *(vulp)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite64(u64 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	*(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + APECS_IO);
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr,
+					    unsigned long size)
+{
+	return (void __iomem *)(addr + APECS_DENSE_MEM);
+}
+
+__EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x180000000UL;
+}
+
+__EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= APECS_DENSE_MEM;
+}
+
+#undef APECS_SET_HAE
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		apecs
+#define apecs_trivial_io_bw	0
+#define apecs_trivial_io_lq	0
+#define apecs_trivial_rw_bw	2
+#define apecs_trivial_rw_lq	1
+#define apecs_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_APECS__H__ */