aboutsummaryrefslogtreecommitdiff
path: root/arch/parisc/lib/iomap.c
diff options
context:
space:
mode:
authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/parisc/lib/iomap.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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(). ...
Diffstat (limited to 'arch/parisc/lib/iomap.c')
-rw-r--r--arch/parisc/lib/iomap.c551
1 files changed, 551 insertions, 0 deletions
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
new file mode 100644
index 000000000..915c0c4da
--- /dev/null
+++ b/arch/parisc/lib/iomap.c
@@ -0,0 +1,551 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * iomap.c - Implement iomap interface for PA-RISC
+ * Copyright (c) 2004 Matthew Wilcox
+ */
+
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/export.h>
+#include <asm/io.h>
+
+/*
+ * The iomap space on 32-bit PA-RISC is intended to look like this:
+ * 00000000-7fffffff virtual mapped IO
+ * 80000000-8fffffff ISA/EISA port space that can't be virtually mapped
+ * 90000000-9fffffff Dino port space
+ * a0000000-afffffff Astro port space
+ * b0000000-bfffffff PAT port space
+ * c0000000-cfffffff non-swapped memory IO
+ * f0000000-ffffffff legacy IO memory pointers
+ *
+ * For the moment, here's what it looks like:
+ * 80000000-8fffffff All ISA/EISA port space
+ * f0000000-ffffffff legacy IO memory pointers
+ *
+ * On 64-bit, everything is extended, so:
+ * 8000000000000000-8fffffffffffffff All ISA/EISA port space
+ * f000000000000000-ffffffffffffffff legacy IO memory pointers
+ */
+
+/*
+ * Technically, this should be 'if (VMALLOC_START < addr < VMALLOC_END),
+ * but that's slow and we know it'll be within the first 2GB.
+ */
+#ifdef CONFIG_64BIT
+#define INDIRECT_ADDR(addr) (((unsigned long)(addr) & 1UL<<63) != 0)
+#define ADDR_TO_REGION(addr) (((unsigned long)addr >> 60) & 7)
+#define IOPORT_MAP_BASE (8UL << 60)
+#else
+#define INDIRECT_ADDR(addr) (((unsigned long)(addr) & 1UL<<31) != 0)
+#define ADDR_TO_REGION(addr) (((unsigned long)addr >> 28) & 7)
+#define IOPORT_MAP_BASE (8UL << 28)
+#endif
+
+struct iomap_ops {
+ unsigned int (*read8)(const void __iomem *);
+ unsigned int (*read16)(const void __iomem *);
+ unsigned int (*read16be)(const void __iomem *);
+ unsigned int (*read32)(const void __iomem *);
+ unsigned int (*read32be)(const void __iomem *);
+#ifdef CONFIG_64BIT
+ u64 (*read64)(const void __iomem *);
+ u64 (*read64be)(const void __iomem *);
+#endif
+ void (*write8)(u8, void __iomem *);
+ void (*write16)(u16, void __iomem *);
+ void (*write16be)(u16, void __iomem *);
+ void (*write32)(u32, void __iomem *);
+ void (*write32be)(u32, void __iomem *);
+#ifdef CONFIG_64BIT
+ void (*write64)(u64, void __iomem *);
+ void (*write64be)(u64, void __iomem *);
+#endif
+ void (*read8r)(const void __iomem *, void *, unsigned long);
+ void (*read16r)(const void __iomem *, void *, unsigned long);
+ void (*read32r)(const void __iomem *, void *, unsigned long);
+ void (*write8r)(void __iomem *, const void *, unsigned long);
+ void (*write16r)(void __iomem *, const void *, unsigned long);
+ void (*write32r)(void __iomem *, const void *, unsigned long);
+};
+
+/* Generic ioport ops. To be replaced later by specific dino/elroy/wax code */
+
+#define ADDR2PORT(addr) ((unsigned long __force)(addr) & 0xffffff)
+
+static unsigned int ioport_read8(const void __iomem *addr)
+{
+ return inb(ADDR2PORT(addr));
+}
+
+static unsigned int ioport_read16(const void __iomem *addr)
+{
+ return inw(ADDR2PORT(addr));
+}
+
+static unsigned int ioport_read32(const void __iomem *addr)
+{
+ return inl(ADDR2PORT(addr));
+}
+
+static void ioport_write8(u8 datum, void __iomem *addr)
+{
+ outb(datum, ADDR2PORT(addr));
+}
+
+static void ioport_write16(u16 datum, void __iomem *addr)
+{
+ outw(datum, ADDR2PORT(addr));
+}
+
+static void ioport_write32(u32 datum, void __iomem *addr)
+{
+ outl(datum, ADDR2PORT(addr));
+}
+
+static void ioport_read8r(const void __iomem *addr, void *dst, unsigned long count)
+{
+ insb(ADDR2PORT(addr), dst, count);
+}
+
+static void ioport_read16r(const void __iomem *addr, void *dst, unsigned long count)
+{
+ insw(ADDR2PORT(addr), dst, count);
+}
+
+static void ioport_read32r(const void __iomem *addr, void *dst, unsigned long count)
+{
+ insl(ADDR2PORT(addr), dst, count);
+}
+
+static void ioport_write8r(void __iomem *addr, const void *s, unsigned long n)
+{
+ outsb(ADDR2PORT(addr), s, n);
+}
+
+static void ioport_write16r(void __iomem *addr, const void *s, unsigned long n)
+{
+ outsw(ADDR2PORT(addr), s, n);
+}
+
+static void ioport_write32r(void __iomem *addr, const void *s, unsigned long n)
+{
+ outsl(ADDR2PORT(addr), s, n);
+}
+
+static const struct iomap_ops ioport_ops = {
+ .read8 = ioport_read8,
+ .read16 = ioport_read16,
+ .read16be = ioport_read16,
+ .read32 = ioport_read32,
+ .read32be = ioport_read32,
+ .write8 = ioport_write8,
+ .write16 = ioport_write16,
+ .write16be = ioport_write16,
+ .write32 = ioport_write32,
+ .write32be = ioport_write32,
+ .read8r = ioport_read8r,
+ .read16r = ioport_read16r,
+ .read32r = ioport_read32r,
+ .write8r = ioport_write8r,
+ .write16r = ioport_write16r,
+ .write32r = ioport_write32r,
+};
+
+/* Legacy I/O memory ops */
+
+static unsigned int iomem_read8(const void __iomem *addr)
+{
+ return readb(addr);
+}
+
+static unsigned int iomem_read16(const void __iomem *addr)
+{
+ return readw(addr);
+}
+
+static unsigned int iomem_read16be(const void __iomem *addr)
+{
+ return __raw_readw(addr);
+}
+
+static unsigned int iomem_read32(const void __iomem *addr)
+{
+ return readl(addr);
+}
+
+static unsigned int iomem_read32be(const void __iomem *addr)
+{
+ return __raw_readl(addr);
+}
+
+#ifdef CONFIG_64BIT
+static u64 iomem_read64(const void __iomem *addr)
+{
+ return readq(addr);
+}
+
+static u64 iomem_read64be(const void __iomem *addr)
+{
+ return __raw_readq(addr);
+}
+#endif
+
+static void iomem_write8(u8 datum, void __iomem *addr)
+{
+ writeb(datum, addr);
+}
+
+static void iomem_write16(u16 datum, void __iomem *addr)
+{
+ writew(datum, addr);
+}
+
+static void iomem_write16be(u16 datum, void __iomem *addr)
+{
+ __raw_writew(datum, addr);
+}
+
+static void iomem_write32(u32 datum, void __iomem *addr)
+{
+ writel(datum, addr);
+}
+
+static void iomem_write32be(u32 datum, void __iomem *addr)
+{
+ __raw_writel(datum, addr);
+}
+
+#ifdef CONFIG_64BIT
+static void iomem_write64(u64 datum, void __iomem *addr)
+{
+ writeq(datum, addr);
+}
+
+static void iomem_write64be(u64 datum, void __iomem *addr)
+{
+ __raw_writeq(datum, addr);
+}
+#endif
+
+static void iomem_read8r(const void __iomem *addr, void *dst, unsigned long count)
+{
+ while (count--) {
+ *(u8 *)dst = __raw_readb(addr);
+ dst++;
+ }
+}
+
+static void iomem_read16r(const void __iomem *addr, void *dst, unsigned long count)
+{
+ while (count--) {
+ *(u16 *)dst = __raw_readw(addr);
+ dst += 2;
+ }
+}
+
+static void iomem_read32r(const void __iomem *addr, void *dst, unsigned long count)
+{
+ while (count--) {
+ *(u32 *)dst = __raw_readl(addr);
+ dst += 4;
+ }
+}
+
+static void iomem_write8r(void __iomem *addr, const void *s, unsigned long n)
+{
+ while (n--) {
+ __raw_writeb(*(u8 *)s, addr);
+ s++;
+ }
+}
+
+static void iomem_write16r(void __iomem *addr, const void *s, unsigned long n)
+{
+ while (n--) {
+ __raw_writew(*(u16 *)s, addr);
+ s += 2;
+ }
+}
+
+static void iomem_write32r(void __iomem *addr, const void *s, unsigned long n)
+{
+ while (n--) {
+ __raw_writel(*(u32 *)s, addr);
+ s += 4;
+ }
+}
+
+static const struct iomap_ops iomem_ops = {
+ .read8 = iomem_read8,
+ .read16 = iomem_read16,
+ .read16be = iomem_read16be,
+ .read32 = iomem_read32,
+ .read32be = iomem_read32be,
+#ifdef CONFIG_64BIT
+ .read64 = iomem_read64,
+ .read64be = iomem_read64be,
+#endif
+ .write8 = iomem_write8,
+ .write16 = iomem_write16,
+ .write16be = iomem_write16be,
+ .write32 = iomem_write32,
+ .write32be = iomem_write32be,
+#ifdef CONFIG_64BIT
+ .write64 = iomem_write64,
+ .write64be = iomem_write64be,
+#endif
+ .read8r = iomem_read8r,
+ .read16r = iomem_read16r,
+ .read32r = iomem_read32r,
+ .write8r = iomem_write8r,
+ .write16r = iomem_write16r,
+ .write32r = iomem_write32r,
+};
+
+static const struct iomap_ops *iomap_ops[8] = {
+ [0] = &ioport_ops,
+ [7] = &iomem_ops
+};
+
+
+unsigned int ioread8(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read8(addr);
+ return *((u8 *)addr);
+}
+
+unsigned int ioread16(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read16(addr);
+ return le16_to_cpup((u16 *)addr);
+}
+
+unsigned int ioread16be(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read16be(addr);
+ return *((u16 *)addr);
+}
+
+unsigned int ioread32(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read32(addr);
+ return le32_to_cpup((u32 *)addr);
+}
+
+unsigned int ioread32be(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read32be(addr);
+ return *((u32 *)addr);
+}
+
+#ifdef CONFIG_64BIT
+u64 ioread64(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read64(addr);
+ return le64_to_cpup((u64 *)addr);
+}
+
+u64 ioread64be(const void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr)))
+ return iomap_ops[ADDR_TO_REGION(addr)]->read64be(addr);
+ return *((u64 *)addr);
+}
+#endif
+
+void iowrite8(u8 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write8(datum, addr);
+ } else {
+ *((u8 *)addr) = datum;
+ }
+}
+
+void iowrite16(u16 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write16(datum, addr);
+ } else {
+ *((u16 *)addr) = cpu_to_le16(datum);
+ }
+}
+
+void iowrite16be(u16 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write16be(datum, addr);
+ } else {
+ *((u16 *)addr) = datum;
+ }
+}
+
+void iowrite32(u32 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write32(datum, addr);
+ } else {
+ *((u32 *)addr) = cpu_to_le32(datum);
+ }
+}
+
+void iowrite32be(u32 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write32be(datum, addr);
+ } else {
+ *((u32 *)addr) = datum;
+ }
+}
+
+#ifdef CONFIG_64BIT
+void iowrite64(u64 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write64(datum, addr);
+ } else {
+ *((u64 *)addr) = cpu_to_le64(datum);
+ }
+}
+
+void iowrite64be(u64 datum, void __iomem *addr)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write64be(datum, addr);
+ } else {
+ *((u64 *)addr) = datum;
+ }
+}
+#endif
+
+/* Repeating interfaces */
+
+void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->read8r(addr, dst, count);
+ } else {
+ while (count--) {
+ *(u8 *)dst = *(u8 *)addr;
+ dst++;
+ }
+ }
+}
+
+void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->read16r(addr, dst, count);
+ } else {
+ while (count--) {
+ *(u16 *)dst = *(u16 *)addr;
+ dst += 2;
+ }
+ }
+}
+
+void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->read32r(addr, dst, count);
+ } else {
+ while (count--) {
+ *(u32 *)dst = *(u32 *)addr;
+ dst += 4;
+ }
+ }
+}
+
+void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write8r(addr, src, count);
+ } else {
+ while (count--) {
+ *(u8 *)addr = *(u8 *)src;
+ src++;
+ }
+ }
+}
+
+void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write16r(addr, src, count);
+ } else {
+ while (count--) {
+ *(u16 *)addr = *(u16 *)src;
+ src += 2;
+ }
+ }
+}
+
+void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+ if (unlikely(INDIRECT_ADDR(addr))) {
+ iomap_ops[ADDR_TO_REGION(addr)]->write32r(addr, src, count);
+ } else {
+ while (count--) {
+ *(u32 *)addr = *(u32 *)src;
+ src += 4;
+ }
+ }
+}
+
+/* Mapping interfaces */
+
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+ return (void __iomem *)(IOPORT_MAP_BASE | port);
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+ if (!INDIRECT_ADDR(addr)) {
+ iounmap(addr);
+ }
+}
+
+#ifdef CONFIG_PCI
+void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
+{
+ if (!INDIRECT_ADDR(addr)) {
+ iounmap(addr);
+ }
+}
+EXPORT_SYMBOL(pci_iounmap);
+#endif
+
+EXPORT_SYMBOL(ioread8);
+EXPORT_SYMBOL(ioread16);
+EXPORT_SYMBOL(ioread16be);
+EXPORT_SYMBOL(ioread32);
+EXPORT_SYMBOL(ioread32be);
+#ifdef CONFIG_64BIT
+EXPORT_SYMBOL(ioread64);
+EXPORT_SYMBOL(ioread64be);
+#endif
+EXPORT_SYMBOL(iowrite8);
+EXPORT_SYMBOL(iowrite16);
+EXPORT_SYMBOL(iowrite16be);
+EXPORT_SYMBOL(iowrite32);
+EXPORT_SYMBOL(iowrite32be);
+#ifdef CONFIG_64BIT
+EXPORT_SYMBOL(iowrite64);
+EXPORT_SYMBOL(iowrite64be);
+#endif
+EXPORT_SYMBOL(ioread8_rep);
+EXPORT_SYMBOL(ioread16_rep);
+EXPORT_SYMBOL(ioread32_rep);
+EXPORT_SYMBOL(iowrite8_rep);
+EXPORT_SYMBOL(iowrite16_rep);
+EXPORT_SYMBOL(iowrite32_rep);
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);