File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
new file mode 100644
index 0000000..1778805
--- /dev/null
+++ b/arch/cris/include/asm/Kbuild
@@ -0,0 +1,47 @@
+generic-y += atomic.h
+generic-y += auxvec.h
+generic-y += barrier.h
+generic-y += bitsperlong.h
+generic-y += clkdev.h
+generic-y += cmpxchg.h
+generic-y += cputime.h
+generic-y += device.h
+generic-y += div64.h
+generic-y += errno.h
+generic-y += exec.h
+generic-y += emergency-restart.h
+generic-y += fcntl.h
+generic-y += futex.h
+generic-y += hardirq.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += irq_regs.h
+generic-y += irq_work.h
+generic-y += kdebug.h
+generic-y += kmap_types.h
+generic-y += kvm_para.h
+generic-y += linkage.h
+generic-y += local.h
+generic-y += local64.h
+generic-y += mcs_spinlock.h
+generic-y += mm-arch-hooks.h
+generic-y += mman.h
+generic-y += module.h
+generic-y += msgbuf.h
+generic-y += percpu.h
+generic-y += poll.h
+generic-y += preempt.h
+generic-y += resource.h
+generic-y += sections.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += topology.h
+generic-y += trace_clock.h
+generic-y += types.h
+generic-y += vga.h
+generic-y += word-at-a-time.h
+generic-y += xor.h
diff --git a/arch/cris/include/asm/asm-offsets.h b/arch/cris/include/asm/asm-offsets.h
new file mode 100644
index 0000000..d370ee3
--- /dev/null
+++ b/arch/cris/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/arch/cris/include/asm/axisflashmap.h b/arch/cris/include/asm/axisflashmap.h
new file mode 100644
index 0000000..015ca54
--- /dev/null
+++ b/arch/cris/include/asm/axisflashmap.h
@@ -0,0 +1,61 @@
+#ifndef __ASM_AXISFLASHMAP_H
+#define __ASM_AXISFLASHMAP_H
+
+/* Bootblock parameters are stored at 0xc000 and has the FLASH_BOOT_MAGIC
+ * as start, it ends with 0xFFFFFFFF */
+#define FLASH_BOOT_MAGIC 0xbeefcace
+#define BOOTPARAM_OFFSET 0xc000
+/* apps/bootblocktool is used to read and write the parameters,
+ * and it has nothing to do with the partition table.
+ */
+
+#define PARTITION_TABLE_OFFSET 10
+#define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */
+
+/* The partitiontable_head is located at offset +10: */
+struct partitiontable_head {
+ __u16 magic; /* PARTITION_TABLE_MAGIC */
+ __u16 size; /* Length of ptable block (entries + end marker) */
+ __u32 checksum; /* simple longword sum, over entries + end marker */
+};
+
+/* And followed by partition table entries */
+struct partitiontable_entry {
+ __u32 offset; /* relative to the sector the ptable is in */
+ __u32 size; /* in bytes */
+ __u32 checksum; /* simple longword sum */
+ __u16 type; /* see type codes below */
+ __u16 flags; /* bit 0: ro/rw = 1/0 */
+ __u32 future0; /* 16 bytes reserved for future use */
+ __u32 future1;
+ __u32 future2;
+ __u32 future3;
+};
+/* ended by an end marker: */
+#define PARTITIONTABLE_END_MARKER 0xFFFFFFFF
+#define PARTITIONTABLE_END_MARKER_SIZE 4
+
+#define PARTITIONTABLE_END_PAD 10
+
+/* Complete structure for whole partition table */
+/* note that table may end before CONFIG_ETRAX_PTABLE_ENTRIES by setting
+ * offset of the last entry + 1 to PARTITIONTABLE_END_MARKER.
+ */
+struct partitiontable {
+ __u8 skip[PARTITION_TABLE_OFFSET];
+ struct partitiontable_head head;
+ struct partitiontable_entry entries[];
+};
+
+#define PARTITION_TYPE_PARAM 0x0001
+#define PARTITION_TYPE_KERNEL 0x0002
+#define PARTITION_TYPE_JFFS 0x0003
+#define PARTITION_TYPE_JFFS2 0x0000
+
+#define PARTITION_FLAGS_READONLY_MASK 0x0001
+#define PARTITION_FLAGS_READONLY 0x0001
+
+/* The master mtd for the entire flash. */
+extern struct mtd_info *axisflash_mtd;
+
+#endif
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
new file mode 100644
index 0000000..8062cb5
--- /dev/null
+++ b/arch/cris/include/asm/bitops.h
@@ -0,0 +1,50 @@
+/* asm/bitops.h for Linux/CRIS
+ *
+ * TODO: asm versions if speed is needed
+ *
+ * All bit operations return 0 if the bit was cleared before the
+ * operation and != 0 if it was not.
+ *
+ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
+ */
+
+#ifndef _CRIS_BITOPS_H
+#define _CRIS_BITOPS_H
+
+/* Currently this is unsuitable for consumption outside the kernel. */
+#ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <arch/bitops.h>
+#include <linux/compiler.h>
+#include <asm/barrier.h>
+
+#include <asm-generic/bitops/atomic.h>
+#include <asm-generic/bitops/non-atomic.h>
+
+/*
+ * Since we define it "external", it collides with the built-in
+ * definition, which doesn't have the same semantics. We don't want to
+ * use -fno-builtin, so just hide the name ffs.
+ */
+#define ffs(x) kernel_ffs(x)
+
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/find.h>
+#include <asm-generic/bitops/lock.h>
+
+#include <asm-generic/bitops/le.h>
+
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
+
+#include <asm-generic/bitops/sched.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _CRIS_BITOPS_H */
diff --git a/arch/cris/include/asm/bug.h b/arch/cris/include/asm/bug.h
new file mode 100644
index 0000000..3b39589
--- /dev/null
+++ b/arch/cris/include/asm/bug.h
@@ -0,0 +1,4 @@
+#ifndef _CRIS_BUG_H
+#define _CRIS_BUG_H
+#include <arch/bug.h>
+#endif
diff --git a/arch/cris/include/asm/bugs.h b/arch/cris/include/asm/bugs.h
new file mode 100644
index 0000000..c5907aa
--- /dev/null
+++ b/arch/cris/include/asm/bugs.h
@@ -0,0 +1,21 @@
+/* $Id: bugs.h,v 1.2 2001/01/17 17:03:18 bjornw Exp $
+ *
+ * include/asm-cris/bugs.h
+ *
+ * Copyright (C) 2001 Axis Communications AB
+ */
+
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ * void check_bugs(void);
+ */
+
+static void check_bugs(void)
+{
+}
+
+
+
+
diff --git a/arch/cris/include/asm/cache.h b/arch/cris/include/asm/cache.h
new file mode 100644
index 0000000..a692b9f
--- /dev/null
+++ b/arch/cris/include/asm/cache.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_CACHE_H
+#define _ASM_CACHE_H
+
+#include <arch/cache.h>
+
+#endif /* _ASM_CACHE_H */
diff --git a/arch/cris/include/asm/cacheflush.h b/arch/cris/include/asm/cacheflush.h
new file mode 100644
index 0000000..36795bc
--- /dev/null
+++ b/arch/cris/include/asm/cacheflush.h
@@ -0,0 +1,32 @@
+#ifndef _CRIS_CACHEFLUSH_H
+#define _CRIS_CACHEFLUSH_H
+
+/* Keep includes the same across arches. */
+#include <linux/mm.h>
+
+/* The cache doesn't need to be flushed when TLB entries change because
+ * the cache is mapped to physical memory, not virtual memory
+ */
+#define flush_cache_all() do { } while (0)
+#define flush_cache_mm(mm) do { } while (0)
+#define flush_cache_dup_mm(mm) do { } while (0)
+#define flush_cache_range(vma, start, end) do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
+#define flush_dcache_page(page) do { } while (0)
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+#define flush_icache_range(start, end) do { } while (0)
+#define flush_icache_page(vma,pg) do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
+#define flush_cache_vmap(start, end) do { } while (0)
+#define flush_cache_vunmap(start, end) do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy(dst, src, len)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy(dst, src, len)
+
+int change_page_attr(struct page *page, int numpages, pgprot_t prot);
+
+#endif /* _CRIS_CACHEFLUSH_H */
diff --git a/arch/cris/include/asm/checksum.h b/arch/cris/include/asm/checksum.h
new file mode 100644
index 0000000..75dcb77
--- /dev/null
+++ b/arch/cris/include/asm/checksum.h
@@ -0,0 +1,83 @@
+/* TODO: csum_tcpudp_magic could be speeded up, and csum_fold as well */
+
+#ifndef _CRIS_CHECKSUM_H
+#define _CRIS_CHECKSUM_H
+
+#include <arch/checksum.h>
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+
+__wsum csum_partial_copy_nocheck(const void *src, void *dst,
+ int len, __wsum sum);
+
+/*
+ * Fold a partial checksum into a word
+ */
+
+static inline __sum16 csum_fold(__wsum csum)
+{
+ u32 sum = (__force u32)csum;
+ sum = (sum & 0xffff) + (sum >> 16); /* add in end-around carry */
+ sum = (sum & 0xffff) + (sum >> 16); /* add in end-around carry */
+ return (__force __sum16)~sum;
+}
+
+extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+ int len, __wsum sum,
+ int *errptr);
+
+/*
+ * This is a version of ip_compute_csum() optimized for IP headers,
+ * which always checksum on 4 octet boundaries.
+ *
+ */
+
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+ return csum_fold(csum_partial(iph, ihl * 4, 0));
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+ unsigned short len,
+ unsigned short proto,
+ __wsum sum)
+{
+ return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+static inline __sum16 ip_compute_csum(const void *buff, int len)
+{
+ return csum_fold (csum_partial(buff, len, 0));
+}
+
+#endif
diff --git a/arch/cris/include/asm/current.h b/arch/cris/include/asm/current.h
new file mode 100644
index 0000000..5f5c0ef
--- /dev/null
+++ b/arch/cris/include/asm/current.h
@@ -0,0 +1,15 @@
+#ifndef _CRIS_CURRENT_H
+#define _CRIS_CURRENT_H
+
+#include <linux/thread_info.h>
+
+struct task_struct;
+
+static inline struct task_struct * get_current(void)
+{
+ return current_thread_info()->task;
+}
+
+#define current get_current()
+
+#endif /* !(_CRIS_CURRENT_H) */
diff --git a/arch/cris/include/asm/delay.h b/arch/cris/include/asm/delay.h
new file mode 100644
index 0000000..75ec581
--- /dev/null
+++ b/arch/cris/include/asm/delay.h
@@ -0,0 +1,27 @@
+#ifndef _CRIS_DELAY_H
+#define _CRIS_DELAY_H
+
+/*
+ * Copyright (C) 1998-2002 Axis Communications AB
+ *
+ * Delay routines, using a pre-computed "loops_per_second" value.
+ */
+
+#include <arch/delay.h>
+
+/* Use only for very small delays ( < 1 msec). */
+
+extern unsigned long loops_per_usec; /* arch/cris/mm/init.c */
+
+/* May be defined by arch/delay.h. */
+#ifndef udelay
+static inline void udelay(unsigned long usecs)
+{
+ __delay(usecs * loops_per_usec);
+}
+#endif
+
+#endif /* defined(_CRIS_DELAY_H) */
+
+
+
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
new file mode 100644
index 0000000..57f794e
--- /dev/null
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -0,0 +1,172 @@
+/* DMA mapping. Nothing tricky here, just virt_to_phys */
+
+#ifndef _ASM_CRIS_DMA_MAPPING_H
+#define _ASM_CRIS_DMA_MAPPING_H
+
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/scatterlist.h>
+
+#include <asm/cache.h>
+#include <asm/io.h>
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
+#ifdef CONFIG_PCI
+#include <asm-generic/dma-coherent.h>
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag);
+
+void dma_free_coherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle);
+#else
+static inline void *
+dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
+ gfp_t flag)
+{
+ BUG();
+ return NULL;
+}
+
+static inline void
+dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+ dma_addr_t dma_handle)
+{
+ BUG();
+}
+#endif
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *ptr, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+ return virt_to_phys(ptr);
+}
+
+static inline void
+dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+}
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction direction)
+{
+ printk("Map sg\n");
+ return nents;
+}
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page, unsigned long offset,
+ size_t size, enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+ return page_to_phys(page) + offset;
+}
+
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+}
+
+
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+}
+
+static inline void
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+static inline void
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+static inline void
+dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+static inline void
+dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
+ enum dma_data_direction direction)
+{
+}
+
+static inline void
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
+ enum dma_data_direction direction)
+{
+}
+
+static inline int
+dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return 0;
+}
+
+static inline int
+dma_supported(struct device *dev, u64 mask)
+{
+ /*
+ * we fall back to GFP_DMA when the mask isn't all 1s,
+ * so we can't guarantee allocations that must be
+ * within a tighter range than GFP_DMA..
+ */
+ if(mask < 0x00ffffff)
+ return 0;
+
+ return 1;
+}
+
+static inline int
+dma_set_mask(struct device *dev, u64 mask)
+{
+ if(!dev->dma_mask || !dma_supported(dev, mask))
+ return -EIO;
+
+ *dev->dma_mask = mask;
+
+ return 0;
+}
+
+static inline void
+dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+/* drivers/base/dma-mapping.c */
+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size);
+extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size);
+
+#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
+#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
+
+
+#endif
diff --git a/arch/cris/include/asm/dma.h b/arch/cris/include/asm/dma.h
new file mode 100644
index 0000000..30fd715
--- /dev/null
+++ b/arch/cris/include/asm/dma.h
@@ -0,0 +1,21 @@
+/* $Id: dma.h,v 1.2 2001/05/09 12:17:42 johana Exp $ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <arch/dma.h>
+
+/* it's useless on the Etrax, but unfortunately needed by the new
+ bootmem allocator (but this should do it for this) */
+
+#define MAX_DMA_ADDRESS PAGE_OFFSET
+
+/* From PCI */
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy (0)
+#endif
+
+#endif /* _ASM_DMA_H */
diff --git a/arch/cris/include/asm/eshlibld.h b/arch/cris/include/asm/eshlibld.h
new file mode 100644
index 0000000..70aa448
--- /dev/null
+++ b/arch/cris/include/asm/eshlibld.h
@@ -0,0 +1,112 @@
+/*!**************************************************************************
+*!
+*! FILE NAME : eshlibld.h
+*!
+*! DESCRIPTION: Prototypes for exported shared library functions
+*!
+*! FUNCTIONS : perform_cris_aout_relocations, shlibmod_fork, shlibmod_exit
+*! (EXPORTED)
+*!
+*!---------------------------------------------------------------------------
+*!
+*! (C) Copyright 1998, 1999 Axis Communications AB, LUND, SWEDEN
+*!
+*!**************************************************************************/
+/* $Id: eshlibld.h,v 1.2 2001/02/23 13:47:33 bjornw Exp $ */
+
+#ifndef _cris_relocate_h
+#define _cris_relocate_h
+
+/* Please note that this file is also compiled into the xsim simulator.
+ Try to avoid breaking its double use (only works on a little-endian
+ 32-bit machine such as the i386 anyway).
+
+ Use __KERNEL__ when you're about to use kernel functions,
+ (which you should not do here anyway, since this file is
+ used by glibc).
+ Use defined(__KERNEL__) || defined(__elinux__) when doing
+ things that only makes sense on an elinux system.
+ Use __CRIS__ when you're about to do (really) CRIS-specific code.
+*/
+
+/* We have dependencies all over the place for the host system
+ for xsim being a linux system, so let's not pretend anything
+ else with #ifdef:s here until fixed. */
+#include <linux/limits.h>
+
+/* Maybe do sanity checking if file input. */
+#undef SANITYCHECK_RELOC
+
+/* Maybe output debug messages. */
+#undef RELOC_DEBUG
+
+/* Maybe we want to share core as well as disk space.
+ Mainly depends on the config macro CONFIG_SHARE_SHLIB_CORE, but it is
+ assumed that we want to share code when debugging (exposes more
+ trouble). */
+#ifndef SHARE_LIB_CORE
+# if (defined(__KERNEL__) || !defined(RELOC_DEBUG))
+# define SHARE_LIB_CORE 0
+# else
+# define SHARE_LIB_CORE 1
+# endif /* __KERNEL__ etc */
+#endif /* SHARE_LIB_CORE */
+
+
+/* Main exported function; supposed to be called when the program a.out
+ has been read in. */
+extern int
+perform_cris_aout_relocations(unsigned long text, unsigned long tlength,
+ unsigned long data, unsigned long dlength,
+ unsigned long baddr, unsigned long blength,
+
+ /* These may be zero when there's "perfect"
+ position-independent code. */
+ unsigned char *trel, unsigned long tsrel,
+ unsigned long dsrel,
+
+ /* These will be zero at a first try, to see
+ if code is statically linked. Else a
+ second try, with the symbol table and
+ string table nonzero should be done. */
+ unsigned char *symbols, unsigned long symlength,
+ unsigned char *strings, unsigned long stringlength,
+
+ /* These will only be used when symbol table
+ information is present. */
+ char **env, int envc,
+ int euid, int is_suid);
+
+
+#ifdef RELOC_DEBUG
+/* Task-specific debug stuff. */
+struct task_reloc_debug {
+ struct memdebug *alloclast;
+ unsigned long alloc_total;
+ unsigned long export_total;
+};
+#endif /* RELOC_DEBUG */
+
+#if SHARE_LIB_CORE
+
+/* When code (and some very specific data) is shared and not just
+ dynamically linked, we need to export hooks for exec beginning and
+ end. */
+
+struct shlibdep;
+
+extern void
+shlibmod_exit(struct shlibdep **deps);
+
+/* Returns 0 if failure, nonzero for ok. */
+extern int
+shlibmod_fork(struct shlibdep **deps);
+
+#else /* ! SHARE_LIB_CORE */
+# define shlibmod_exit(x)
+# define shlibmod_fork(x) 1
+#endif /* ! SHARE_LIB_CORE */
+
+#endif _cris_relocate_h
+/********************** END OF FILE eshlibld.h *****************************/
+
diff --git a/arch/cris/include/asm/etraxi2c.h b/arch/cris/include/asm/etraxi2c.h
new file mode 100644
index 0000000..e369a76
--- /dev/null
+++ b/arch/cris/include/asm/etraxi2c.h
@@ -0,0 +1,36 @@
+/* $Id: etraxi2c.h,v 1.1 2001/01/18 15:49:57 bjornw Exp $ */
+
+#ifndef _LINUX_ETRAXI2C_H
+#define _LINUX_ETRAXI2C_H
+
+/* etraxi2c _IOC_TYPE, bits 8 to 15 in ioctl cmd */
+
+#define ETRAXI2C_IOCTYPE 44
+
+/* supported ioctl _IOC_NR's */
+
+/* in write operations, the argument contains both i2c
+ * slave, register and value.
+ */
+
+#define I2C_WRITEARG(slave, reg, value) (((slave) << 16) | ((reg) << 8) | (value))
+#define I2C_READARG(slave, reg) (((slave) << 16) | ((reg) << 8))
+
+#define I2C_ARGSLAVE(arg) ((arg) >> 16)
+#define I2C_ARGREG(arg) (((arg) >> 8) & 0xff)
+#define I2C_ARGVALUE(arg) ((arg) & 0xff)
+
+#define I2C_WRITEREG 0x1 /* write to an i2c register */
+#define I2C_READREG 0x2 /* read from an i2c register */
+
+/*
+EXAMPLE usage:
+
+ i2c_arg = I2C_WRITEARG(STA013_WRITE_ADDR, reg, val);
+ ioctl(fd, _IO(ETRAXI2C_IOCTYPE, I2C_WRITEREG), i2c_arg);
+
+ i2c_arg = I2C_READARG(STA013_READ_ADDR, reg);
+ val = ioctl(fd, _IO(ETRAXI2C_IOCTYPE, I2C_READREG), i2c_arg);
+
+*/
+#endif
diff --git a/arch/cris/include/asm/fasttimer.h b/arch/cris/include/asm/fasttimer.h
new file mode 100644
index 0000000..8f8a8d6
--- /dev/null
+++ b/arch/cris/include/asm/fasttimer.h
@@ -0,0 +1,47 @@
+/*
+ * linux/include/asm-cris/fasttimer.h
+ *
+ * Fast timers for ETRAX100LX
+ * Copyright (C) 2000-2007 Axis Communications AB
+ */
+#include <linux/time.h> /* struct timeval */
+#include <linux/timex.h>
+
+#ifdef CONFIG_ETRAX_FAST_TIMER
+
+typedef void fast_timer_function_type(unsigned long);
+
+struct fasttime_t {
+ unsigned long tv_jiff; /* jiffies */
+ unsigned long tv_usec; /* microseconds */
+};
+
+struct fast_timer{ /* Close to timer_list */
+ struct fast_timer *next;
+ struct fast_timer *prev;
+ struct fasttime_t tv_set;
+ struct fasttime_t tv_expires;
+ unsigned long delay_us;
+ fast_timer_function_type *function;
+ unsigned long data;
+ const char *name;
+};
+
+extern struct fast_timer *fast_timer_list;
+
+void start_one_shot_timer(struct fast_timer *t,
+ fast_timer_function_type *function,
+ unsigned long data,
+ unsigned long delay_us,
+ const char *name);
+
+int del_fast_timer(struct fast_timer * t);
+/* return 1 if deleted */
+
+
+void schedule_usleep(unsigned long us);
+
+
+int fast_timer_init(void);
+
+#endif
diff --git a/arch/cris/include/asm/fb.h b/arch/cris/include/asm/fb.h
new file mode 100644
index 0000000..c7df380
--- /dev/null
+++ b/arch/cris/include/asm/fb.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_FB_H_
+#define _ASM_FB_H_
+#include <linux/fb.h>
+
+#define fb_pgprotect(...) do {} while (0)
+
+static inline int fb_is_primary_device(struct fb_info *info)
+{
+ return 0;
+}
+
+#endif /* _ASM_FB_H_ */
diff --git a/arch/cris/include/asm/ftrace.h b/arch/cris/include/asm/ftrace.h
new file mode 100644
index 0000000..40a8c17
--- /dev/null
+++ b/arch/cris/include/asm/ftrace.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/cris/include/asm/hw_irq.h b/arch/cris/include/asm/hw_irq.h
new file mode 100644
index 0000000..2980660
--- /dev/null
+++ b/arch/cris/include/asm/hw_irq.h
@@ -0,0 +1,5 @@
+#ifndef _ASM_HW_IRQ_H
+#define _ASM_HW_IRQ_H
+
+#endif
+
diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h
new file mode 100644
index 0000000..cce8664
--- /dev/null
+++ b/arch/cris/include/asm/io.h
@@ -0,0 +1,194 @@
+#ifndef _ASM_CRIS_IO_H
+#define _ASM_CRIS_IO_H
+
+#include <asm/page.h> /* for __va, __pa */
+#ifdef CONFIG_ETRAX_ARCH_V10
+#include <arch/io.h>
+#endif
+#include <asm-generic/iomap.h>
+#include <linux/kernel.h>
+
+struct cris_io_operations
+{
+ u32 (*read_mem)(void *addr, int size);
+ void (*write_mem)(u32 val, int size, void *addr);
+ u32 (*read_io)(u32 port, void *addr, int size, int count);
+ void (*write_io)(u32 port, void *addr, int size, int count);
+};
+
+#ifdef CONFIG_PCI
+extern struct cris_io_operations *cris_iops;
+#else
+#define cris_iops ((struct cris_io_operations*)NULL)
+#endif
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ */
+
+static inline unsigned long virt_to_phys(volatile void * address)
+{
+ return __pa(address);
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+ return __va(address);
+}
+
+extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
+extern void __iomem * __ioremap_prot(unsigned long phys_addr, unsigned long size, pgprot_t prot);
+
+static inline void __iomem * ioremap (unsigned long offset, unsigned long size)
+{
+ return __ioremap(offset, size, 0);
+}
+
+extern void iounmap(volatile void * __iomem addr);
+
+extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size);
+
+/*
+ * IO bus memory addresses are also 1:1 with the physical address
+ */
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+/*
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the CRIS architecture, we just read/write the
+ * memory location directly.
+ */
+#ifdef CONFIG_PCI
+#define PCI_SPACE(x) ((((unsigned)(x)) & 0x10000000) == 0x10000000)
+#else
+#define PCI_SPACE(x) 0
+#endif
+static inline unsigned char readb(const volatile void __iomem *addr)
+{
+ if (PCI_SPACE(addr) && cris_iops)
+ return cris_iops->read_mem((void*)addr, 1);
+ else
+ return *(volatile unsigned char __force *) addr;
+}
+static inline unsigned short readw(const volatile void __iomem *addr)
+{
+ if (PCI_SPACE(addr) && cris_iops)
+ return cris_iops->read_mem((void*)addr, 2);
+ else
+ return *(volatile unsigned short __force *) addr;
+}
+static inline unsigned int readl(const volatile void __iomem *addr)
+{
+ if (PCI_SPACE(addr) && cris_iops)
+ return cris_iops->read_mem((void*)addr, 4);
+ else
+ return *(volatile unsigned int __force *) addr;
+}
+#define readb_relaxed(addr) readb(addr)
+#define readw_relaxed(addr) readw(addr)
+#define readl_relaxed(addr) readl(addr)
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+
+static inline void writeb(unsigned char b, volatile void __iomem *addr)
+{
+ if (PCI_SPACE(addr) && cris_iops)
+ cris_iops->write_mem(b, 1, (void*)addr);
+ else
+ *(volatile unsigned char __force *) addr = b;
+}
+static inline void writew(unsigned short b, volatile void __iomem *addr)
+{
+ if (PCI_SPACE(addr) && cris_iops)
+ cris_iops->write_mem(b, 2, (void*)addr);
+ else
+ *(volatile unsigned short __force *) addr = b;
+}
+static inline void writel(unsigned int b, volatile void __iomem *addr)
+{
+ if (PCI_SPACE(addr) && cris_iops)
+ cris_iops->write_mem(b, 4, (void*)addr);
+ else
+ *(volatile unsigned int __force *) addr = b;
+}
+#define writeb_relaxed(b, addr) writeb(b, addr)
+#define writew_relaxed(b, addr) writew(b, addr)
+#define writel_relaxed(b, addr) writel(b, addr)
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+#define mmiowb()
+
+#define memset_io(a,b,c) memset((void *)(a),(b),(c))
+#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
+#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
+
+
+/* I/O port access. Normally there is no I/O space on CRIS but when
+ * Cardbus/PCI is enabled the request is passed through the bridge.
+ */
+
+#define IO_SPACE_LIMIT 0xffff
+#define inb(port) (cris_iops ? cris_iops->read_io(port,NULL,1,1) : 0)
+#define inw(port) (cris_iops ? cris_iops->read_io(port,NULL,2,1) : 0)
+#define inl(port) (cris_iops ? cris_iops->read_io(port,NULL,4,1) : 0)
+#define insb(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,1,count) : 0)
+#define insw(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,2,count) : 0)
+#define insl(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,4,count) : 0)
+static inline void outb(unsigned char data, unsigned int port)
+{
+ if (cris_iops)
+ cris_iops->write_io(port, (void *) &data, 1, 1);
+}
+static inline void outw(unsigned short data, unsigned int port)
+{
+ if (cris_iops)
+ cris_iops->write_io(port, (void *) &data, 2, 1);
+}
+static inline void outl(unsigned int data, unsigned int port)
+{
+ if (cris_iops)
+ cris_iops->write_io(port, (void *) &data, 4, 1);
+}
+static inline void outsb(unsigned int port, const void *addr,
+ unsigned long count)
+{
+ if (cris_iops)
+ cris_iops->write_io(port, (void *)addr, 1, count);
+}
+static inline void outsw(unsigned int port, const void *addr,
+ unsigned long count)
+{
+ if (cris_iops)
+ cris_iops->write_io(port, (void *)addr, 2, count);
+}
+static inline void outsl(unsigned int port, const void *addr,
+ unsigned long count)
+{
+ if (cris_iops)
+ cris_iops->write_io(port, (void *)addr, 4, count);
+}
+
+#define inb_p(port) inb(port)
+#define inw_p(port) inw(port)
+#define inl_p(port) inl(port)
+#define outb_p(val, port) outb((val), (port))
+#define outw_p(val, port) outw((val), (port))
+#define outl_p(val, port) outl((val), (port))
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p) __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p) p
+
+#endif
diff --git a/arch/cris/include/asm/irq.h b/arch/cris/include/asm/irq.h
new file mode 100644
index 0000000..ce0fcf5
--- /dev/null
+++ b/arch/cris/include/asm/irq.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_IRQ_H
+#define _ASM_IRQ_H
+
+#include <arch/irq.h>
+
+static inline int irq_canonicalize(int irq)
+{
+ return irq;
+}
+
+#endif /* _ASM_IRQ_H */
+
+
diff --git a/arch/cris/include/asm/irqflags.h b/arch/cris/include/asm/irqflags.h
new file mode 100644
index 0000000..943ba5c
--- /dev/null
+++ b/arch/cris/include/asm/irqflags.h
@@ -0,0 +1 @@
+#include <arch/irqflags.h>
diff --git a/arch/cris/include/asm/mmu.h b/arch/cris/include/asm/mmu.h
new file mode 100644
index 0000000..e06ea94
--- /dev/null
+++ b/arch/cris/include/asm/mmu.h
@@ -0,0 +1,10 @@
+/*
+ * CRIS MMU constants and PTE layout
+ */
+
+#ifndef _CRIS_MMU_H
+#define _CRIS_MMU_H
+
+#include <arch/mmu.h>
+
+#endif
diff --git a/arch/cris/include/asm/mmu_context.h b/arch/cris/include/asm/mmu_context.h
new file mode 100644
index 0000000..349acfd
--- /dev/null
+++ b/arch/cris/include/asm/mmu_context.h
@@ -0,0 +1,34 @@
+#ifndef __CRIS_MMU_CONTEXT_H
+#define __CRIS_MMU_CONTEXT_H
+
+#include <asm-generic/mm_hooks.h>
+
+extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
+extern void get_mmu_context(struct mm_struct *mm);
+extern void destroy_context(struct mm_struct *mm);
+extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk);
+
+#define deactivate_mm(tsk,mm) do { } while (0)
+
+static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ switch_mm(prev, next, NULL);
+ local_irq_restore(flags);
+}
+
+/* current active pgd - this is similar to other processors pgd
+ * registers like cr3 on the i386
+ */
+
+/* defined in arch/cris/mm/fault.c */
+DECLARE_PER_CPU(pgd_t *, current_pgd);
+
+static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+}
+
+#endif
diff --git a/arch/cris/include/asm/mutex.h b/arch/cris/include/asm/mutex.h
new file mode 100644
index 0000000..458c1f7
--- /dev/null
+++ b/arch/cris/include/asm/mutex.h
@@ -0,0 +1,9 @@
+/*
+ * Pull in the generic implementation for the mutex fastpath.
+ *
+ * TODO: implement optimized primitives instead, or leave the generic
+ * implementation in place, or pick the atomic_xchg() based generic
+ * implementation. (see asm-generic/mutex-xchg.h for details)
+ */
+
+#include <asm-generic/mutex-dec.h>
diff --git a/arch/cris/include/asm/page.h b/arch/cris/include/asm/page.h
new file mode 100644
index 0000000..dfc53f9
--- /dev/null
+++ b/arch/cris/include/asm/page.h
@@ -0,0 +1,73 @@
+#ifndef _CRIS_PAGE_H
+#define _CRIS_PAGE_H
+
+#include <arch/page.h>
+#include <linux/const.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT 13
+#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
+#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
+
+#define clear_user_page(page, vaddr, pg) clear_page(page)
+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
+
+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
+ alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
+/*
+ * These are used to make use of C type-checking..
+ */
+#ifndef __ASSEMBLY__
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
+#endif
+
+#define pte_val(x) ((x).pte)
+#define pgd_val(x) ((x).pgd)
+#define pgprot_val(x) ((x).pgprot)
+
+#define __pte(x) ((pte_t) { (x) } )
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __pgprot(x) ((pgprot_t) { (x) } )
+
+/* On CRIS the PFN numbers doesn't start at 0 so we have to compensate */
+/* for that before indexing into the page table starting at mem_map */
+#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
+#define pfn_valid(pfn) (((pfn) - (PAGE_OFFSET >> PAGE_SHIFT)) < max_mapnr)
+
+/* to index into the page map. our pages all start at physical addr PAGE_OFFSET so
+ * we can let the map start there. notice that we subtract PAGE_OFFSET because
+ * we start our mem_map there - in other ports they map mem_map physically and
+ * use __pa instead. in our system both the physical and virtual address of DRAM
+ * is too high to let mem_map start at 0, so we do it this way instead (similar
+ * to arm and m68k I think)
+ */
+
+#define virt_to_page(kaddr) (mem_map + (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT))
+#define virt_addr_valid(kaddr) pfn_valid((unsigned)(kaddr) >> PAGE_SHIFT)
+
+/* convert a page (based on mem_map and forward) to a physical address
+ * do this by figuring out the virtual address and then use __pa
+ */
+
+#define page_to_phys(page) __pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
+
+#ifndef __ASSEMBLY__
+
+#endif /* __ASSEMBLY__ */
+
+#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/getorder.h>
+
+#endif /* _CRIS_PAGE_H */
+
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
new file mode 100644
index 0000000..c15b4b4
--- /dev/null
+++ b/arch/cris/include/asm/pci.h
@@ -0,0 +1,57 @@
+#ifndef __ASM_CRIS_PCI_H
+#define __ASM_CRIS_PCI_H
+
+
+#ifdef __KERNEL__
+#include <linux/mm.h> /* for struct page */
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+ already-configured bus numbers - to be used for buggy BIOSes
+ or architectures with incomplete PCI setup by the loader */
+
+#define pcibios_assign_all_busses(void) 1
+
+#define PCIBIOS_MIN_IO 0x1000
+#define PCIBIOS_MIN_MEM 0x10000000
+
+#define PCIBIOS_MIN_CARDBUS_IO 0x4000
+
+void pcibios_config_init(void);
+struct pci_bus * pcibios_scan_root(int bus);
+
+void pcibios_set_master(struct pci_dev *dev);
+struct irq_routing_table *pcibios_get_irq_routing_table(void);
+int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
+
+/* Dynamic DMA mapping stuff.
+ * i386 has everything mapped statically.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/scatterlist.h>
+#include <linux/string.h>
+#include <asm/io.h>
+
+struct pci_dev;
+
+/* The PCI address space does equal the physical memory
+ * address space. The networking and block device layers use
+ * this boolean for bounce buffer decisions.
+ */
+#define PCI_DMA_BUS_IS_PHYS (1)
+
+#define HAVE_PCI_MMAP
+extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+ enum pci_mmap_state mmap_state, int write_combine);
+
+
+#endif /* __KERNEL__ */
+
+/* implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+/* generic pci stuff */
+#include <asm-generic/pci.h>
+
+#endif /* __ASM_CRIS_PCI_H */
diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
new file mode 100644
index 0000000..235ece4
--- /dev/null
+++ b/arch/cris/include/asm/pgalloc.h
@@ -0,0 +1,63 @@
+#ifndef _CRIS_PGALLOC_H
+#define _CRIS_PGALLOC_H
+
+#include <linux/threads.h>
+#include <linux/mm.h>
+
+#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
+#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+/*
+ * Allocate and free page tables.
+ */
+
+static inline pgd_t *pgd_alloc (struct mm_struct *mm)
+{
+ return (pgd_t *)get_zeroed_page(GFP_KERNEL);
+}
+
+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+ free_page((unsigned long)pgd);
+}
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+ pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+ return pte;
+}
+
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ struct page *pte;
+ pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+ if (!pte)
+ return NULL;
+ if (!pgtable_page_ctor(pte)) {
+ __free_page(pte);
+ return NULL;
+ }
+ return pte;
+}
+
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+{
+ free_page((unsigned long)pte);
+}
+
+static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
+{
+ pgtable_page_dtor(pte);
+ __free_page(pte);
+}
+
+#define __pte_free_tlb(tlb,pte,address) \
+do { \
+ pgtable_page_dtor(pte); \
+ tlb_remove_page((tlb), pte); \
+} while (0)
+
+#define check_pgt_cache() do { } while (0)
+
+#endif
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h
new file mode 100644
index 0000000..ceefc31
--- /dev/null
+++ b/arch/cris/include/asm/pgtable.h
@@ -0,0 +1,295 @@
+/*
+ * CRIS pgtable.h - macros and functions to manipulate page tables.
+ */
+
+#ifndef _CRIS_PGTABLE_H
+#define _CRIS_PGTABLE_H
+
+#include <asm/page.h>
+#include <asm-generic/pgtable-nopmd.h>
+
+#ifndef __ASSEMBLY__
+#include <linux/sched.h>
+#include <asm/mmu.h>
+#endif
+#include <arch/pgtable.h>
+
+/*
+ * The Linux memory management assumes a three-level page table setup. On
+ * CRIS, we use that, but "fold" the mid level into the top-level page
+ * table. Since the MMU TLB is software loaded through an interrupt, it
+ * supports any page table structure, so we could have used a three-level
+ * setup, but for the amounts of memory we normally use, a two-level is
+ * probably more efficient.
+ *
+ * This file contains the functions and defines necessary to modify and use
+ * the CRIS page table tree.
+ */
+#ifndef __ASSEMBLY__
+extern void paging_init(void);
+#endif
+
+/* Certain architectures need to do special things when pte's
+ * within a page table are directly modified. Thus, the following
+ * hook is made available.
+ */
+#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+/*
+ * (pmds are folded into pgds so this doesn't get actually called,
+ * but the define is needed for a generic inline function.)
+ */
+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
+#define set_pgu(pudptr, pudval) (*(pudptr) = pudval)
+
+/* PGDIR_SHIFT determines the size of the area a second-level page table can
+ * map. It is equal to the page size times the number of PTE's that fit in
+ * a PMD page. A PTE is 4-bytes in CRIS. Hence the following number.
+ */
+
+#define PGDIR_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-2))
+#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK (~(PGDIR_SIZE-1))
+
+/*
+ * entries per page directory level: we use a two-level, so
+ * we don't really have any PMD directory physically.
+ * pointers are 4 bytes so we can use the page size and
+ * divide it by 4 (shift by 2).
+ */
+#define PTRS_PER_PTE (1UL << (PAGE_SHIFT-2))
+#define PTRS_PER_PGD (1UL << (PAGE_SHIFT-2))
+
+/* calculate how many PGD entries a user-level program can use
+ * the first mappable virtual address is 0
+ * (TASK_SIZE is the maximum virtual address space)
+ */
+
+#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
+#define FIRST_USER_ADDRESS 0UL
+
+/* zero page used for uninitialized stuff */
+#ifndef __ASSEMBLY__
+extern unsigned long empty_zero_page;
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+#endif
+
+/* number of bits that fit into a memory pointer */
+#define BITS_PER_PTR (8*sizeof(unsigned long))
+
+/* to align the pointer to a pointer address */
+#define PTR_MASK (~(sizeof(void*)-1))
+
+/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */
+/* 64-bit machines, beware! SRB. */
+#define SIZEOF_PTR_LOG2 2
+
+/* to find an entry in a page-table */
+#define PAGE_PTR(address) \
+((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
+
+/* to set the page-dir */
+#define SET_PAGE_DIR(tsk,pgdir)
+
+#define pte_none(x) (!pte_val(x))
+#define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
+#define pte_clear(mm,addr,xp) do { pte_val(*(xp)) = 0; } while (0)
+
+#define pmd_none(x) (!pmd_val(x))
+/* by removing the _PAGE_KERNEL bit from the comparison, the same pmd_bad
+ * works for both _PAGE_TABLE and _KERNPG_TABLE pmd entries.
+ */
+#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_KERNEL)) != _PAGE_TABLE)
+#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
+#define pmd_clear(xp) do { pmd_val(*(xp)) = 0; } while (0)
+
+#ifndef __ASSEMBLY__
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+
+static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITE; }
+static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_MODIFIED; }
+static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_special(pte_t pte) { return 0; }
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+ pte_val(pte) &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
+ return pte;
+}
+
+static inline pte_t pte_mkclean(pte_t pte)
+{
+ pte_val(pte) &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
+ return pte;
+}
+
+static inline pte_t pte_mkold(pte_t pte)
+{
+ pte_val(pte) &= ~(_PAGE_ACCESSED | _PAGE_SILENT_READ);
+ return pte;
+}
+
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+ pte_val(pte) |= _PAGE_WRITE;
+ if (pte_val(pte) & _PAGE_MODIFIED)
+ pte_val(pte) |= _PAGE_SILENT_WRITE;
+ return pte;
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+ pte_val(pte) |= _PAGE_MODIFIED;
+ if (pte_val(pte) & _PAGE_WRITE)
+ pte_val(pte) |= _PAGE_SILENT_WRITE;
+ return pte;
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+ pte_val(pte) |= _PAGE_ACCESSED;
+ if (pte_val(pte) & _PAGE_READ)
+ {
+ pte_val(pte) |= _PAGE_SILENT_READ;
+ if ((pte_val(pte) & (_PAGE_WRITE | _PAGE_MODIFIED)) ==
+ (_PAGE_WRITE | _PAGE_MODIFIED))
+ pte_val(pte) |= _PAGE_SILENT_WRITE;
+ }
+ return pte;
+}
+static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+
+/* What actually goes as arguments to the various functions is less than
+ * obvious, but a rule of thumb is that struct page's goes as struct page *,
+ * really physical DRAM addresses are unsigned long's, and DRAM "virtual"
+ * addresses (the 0xc0xxxxxx's) goes as void *'s.
+ */
+
+static inline pte_t __mk_pte(void * page, pgprot_t pgprot)
+{
+ pte_t pte;
+ /* the PTE needs a physical address */
+ pte_val(pte) = __pa(page) | pgprot_val(pgprot);
+ return pte;
+}
+
+#define mk_pte(page, pgprot) __mk_pte(page_address(page), (pgprot))
+
+#define mk_pte_phys(physpage, pgprot) \
+({ \
+ pte_t __pte; \
+ \
+ pte_val(__pte) = (physpage) + pgprot_val(pgprot); \
+ __pte; \
+})
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{ pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
+
+#define pgprot_noncached(prot) __pgprot((pgprot_val(prot) | _PAGE_NO_CACHE))
+
+
+/* pte_val refers to a page in the 0x4xxxxxxx physical DRAM interval
+ * __pte_page(pte_val) refers to the "virtual" DRAM interval
+ * pte_pagenr refers to the page-number counted starting from the virtual DRAM start
+ */
+
+static inline unsigned long __pte_page(pte_t pte)
+{
+ /* the PTE contains a physical address */
+ return (unsigned long)__va(pte_val(pte) & PAGE_MASK);
+}
+
+#define pte_pagenr(pte) ((__pte_page(pte) - PAGE_OFFSET) >> PAGE_SHIFT)
+
+/* permanent address of a page */
+
+#define __page_address(page) (PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))
+#define pte_page(pte) (mem_map+pte_pagenr(pte))
+
+/* only the pte's themselves need to point to physical DRAM (see above)
+ * the pagetable links are purely handled within the kernel SW and thus
+ * don't need the __pa and __va transformations.
+ */
+
+static inline void pmd_set(pmd_t * pmdp, pte_t * ptep)
+{ pmd_val(*pmdp) = _PAGE_TABLE | (unsigned long) ptep; }
+
+#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
+#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
+/* to find an entry in a page-table-directory. */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+
+/* to find an entry in a page-table-directory */
+static inline pgd_t * pgd_offset(const struct mm_struct *mm, unsigned long address)
+{
+ return mm->pgd + pgd_index(address);
+}
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+/* Find an entry in the third-level page table.. */
+#define __pte_offset(address) \
+ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define pte_offset_kernel(dir, address) \
+ ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
+#define pte_offset_map(dir, address) \
+ ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
+
+#define pte_unmap(pte) do { } while (0)
+#define pte_pfn(x) ((unsigned long)(__va((x).pte)) >> PAGE_SHIFT)
+#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+
+#define pte_ERROR(e) \
+ printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), pte_val(e))
+#define pgd_ERROR(e) \
+ printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
+
+
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* defined in head.S */
+
+/*
+ * CRIS doesn't have any external MMU info: the kernel page
+ * tables contain all the necessary information.
+ *
+ * Actually I am not sure on what this could be used for.
+ */
+static inline void update_mmu_cache(struct vm_area_struct * vma,
+ unsigned long address, pte_t *ptep)
+{
+}
+
+/* Encode and de-code a swap entry (must be !pte_none(e) && !pte_present(e)) */
+/* Since the PAGE_PRESENT bit is bit 4, we can use the bits above */
+
+#define __swp_type(x) (((x).val >> 5) & 0x7f)
+#define __swp_offset(x) ((x).val >> 12)
+#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 5) | ((offset) << 12) })
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+
+#define kern_addr_valid(addr) (1)
+
+#include <asm-generic/pgtable.h>
+
+/*
+ * No page table caches to initialise
+ */
+#define pgtable_cache_init() do { } while (0)
+
+typedef pte_t *pte_addr_t;
+
+#endif /* __ASSEMBLY__ */
+#endif /* _CRIS_PGTABLE_H */
diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h
new file mode 100644
index 0000000..862126b
--- /dev/null
+++ b/arch/cris/include/asm/processor.h
@@ -0,0 +1,70 @@
+/*
+ * include/asm-cris/processor.h
+ *
+ * Copyright (C) 2000, 2001 Axis Communications AB
+ *
+ * Authors: Bjorn Wesen Initial version
+ *
+ */
+
+#ifndef __ASM_CRIS_PROCESSOR_H
+#define __ASM_CRIS_PROCESSOR_H
+
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <arch/processor.h>
+#include <arch/system.h>
+
+struct task_struct;
+
+#define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX STACK_TOP
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
+
+/* THREAD_SIZE is the size of the thread_info/kernel_stack combo.
+ * normally, the stack is found by doing something like p + THREAD_SIZE
+ * in CRIS, a page is 8192 bytes, which seems like a sane size
+ */
+#define THREAD_SIZE PAGE_SIZE
+#define THREAD_SIZE_ORDER (0)
+
+/*
+ * At user->kernel entry, the pt_regs struct is stacked on the top of the kernel-stack.
+ * This macro allows us to find those regs for a task.
+ * Notice that subsequent pt_regs stackings, like recursive interrupts occurring while
+ * we're in the kernel, won't affect this - only the first user->kernel transition
+ * registers are reached by this.
+ */
+
+#define user_regs(thread_info) (((struct pt_regs *)((unsigned long)(thread_info) + THREAD_SIZE)) - 1)
+
+/*
+ * Dito but for the currently running task
+ */
+
+#define task_pt_regs(task) user_regs(task_thread_info(task))
+
+unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp)
+
+extern unsigned long thread_saved_pc(struct task_struct *tsk);
+
+/* Free all resources held by a thread. */
+static inline void release_thread(struct task_struct *dead_task)
+{
+ /* Nothing needs to be done. */
+}
+
+#define init_stack (init_thread_union.stack)
+
+#define cpu_relax() barrier()
+#define cpu_relax_lowlatency() cpu_relax()
+
+void default_idle(void);
+
+#endif /* __ASM_CRIS_PROCESSOR_H */
diff --git a/arch/cris/include/asm/ptrace.h b/arch/cris/include/asm/ptrace.h
new file mode 100644
index 0000000..9e788d0
--- /dev/null
+++ b/arch/cris/include/asm/ptrace.h
@@ -0,0 +1,14 @@
+#ifndef _CRIS_PTRACE_H
+#define _CRIS_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS 12
+#define PTRACE_SETREGS 13
+
+#define profile_pc(regs) instruction_pointer(regs)
+#define current_user_stack_pointer() rdusp()
+
+#endif /* _CRIS_PTRACE_H */
diff --git a/arch/cris/include/asm/segment.h b/arch/cris/include/asm/segment.h
new file mode 100644
index 0000000..c067513
--- /dev/null
+++ b/arch/cris/include/asm/segment.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_SEGMENT_H
+#define _ASM_SEGMENT_H
+
+typedef struct {
+ unsigned long seg;
+} mm_segment_t;
+
+#endif
diff --git a/arch/cris/include/asm/serial.h b/arch/cris/include/asm/serial.h
new file mode 100644
index 0000000..af7535a
--- /dev/null
+++ b/arch/cris/include/asm/serial.h
@@ -0,0 +1,9 @@
+#ifndef _ASM_SERIAL_H
+#define _ASM_SERIAL_H
+
+/*
+ * This assumes you have a 1.8432 MHz clock for your UART.
+ */
+#define BASE_BAUD (1843200 / 16)
+
+#endif /* _ASM_SERIAL_H */
diff --git a/arch/cris/include/asm/shmparam.h b/arch/cris/include/asm/shmparam.h
new file mode 100644
index 0000000..d29d122
--- /dev/null
+++ b/arch/cris/include/asm/shmparam.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_CRIS_SHMPARAM_H
+#define _ASM_CRIS_SHMPARAM_H
+
+/* same as asm-i386/ version.. */
+
+#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
+
+#endif /* _ASM_CRIS_SHMPARAM_H */
diff --git a/arch/cris/include/asm/signal.h b/arch/cris/include/asm/signal.h
new file mode 100644
index 0000000..c11b874
--- /dev/null
+++ b/arch/cris/include/asm/signal.h
@@ -0,0 +1,23 @@
+#ifndef _ASM_CRIS_SIGNAL_H
+#define _ASM_CRIS_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+/* Most things should be clean enough to redefine this at will, if care
+ is taken to make libc match. */
+
+#define _NSIG 64
+#define _NSIG_BPW 32
+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t; /* at least 32 bits */
+
+typedef struct {
+ unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#define __ARCH_HAS_SA_RESTORER
+
+#include <asm/sigcontext.h>
+
+#endif
diff --git a/arch/cris/include/asm/stacktrace.h b/arch/cris/include/asm/stacktrace.h
new file mode 100644
index 0000000..2d90856
--- /dev/null
+++ b/arch/cris/include/asm/stacktrace.h
@@ -0,0 +1,8 @@
+#ifndef __CRIS_STACKTRACE_H
+#define __CRIS_STACKTRACE_H
+
+void walk_stackframe(unsigned long sp,
+ int (*fn)(unsigned long addr, void *data),
+ void *data);
+
+#endif
diff --git a/arch/cris/include/asm/string.h b/arch/cris/include/asm/string.h
new file mode 100644
index 0000000..d5db39f
--- /dev/null
+++ b/arch/cris/include/asm/string.h
@@ -0,0 +1,20 @@
+#ifndef _ASM_CRIS_STRING_H
+#define _ASM_CRIS_STRING_H
+
+/* the optimized memcpy is in arch/cris/lib/string.c */
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, size_t);
+
+/* New and improved. In arch/cris/lib/memset.c */
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *, int, size_t);
+
+#ifdef CONFIG_ETRAX_ARCH_V32
+/* For v32 we provide strcmp. */
+#define __HAVE_ARCH_STRCMP
+extern int strcmp(const char *s1, const char *s2);
+#endif
+
+#endif
diff --git a/arch/cris/include/asm/swab.h b/arch/cris/include/asm/swab.h
new file mode 100644
index 0000000..991b6ac
--- /dev/null
+++ b/arch/cris/include/asm/swab.h
@@ -0,0 +1,7 @@
+#ifndef _CRIS_SWAB_H
+#define _CRIS_SWAB_H
+
+#include <arch/swab.h>
+#include <uapi/asm/swab.h>
+
+#endif /* _CRIS_SWAB_H */
diff --git a/arch/cris/include/asm/switch_to.h b/arch/cris/include/asm/switch_to.h
new file mode 100644
index 0000000..d842e11
--- /dev/null
+++ b/arch/cris/include/asm/switch_to.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_CRIS_SWITCH_TO_H
+#define __ASM_CRIS_SWITCH_TO_H
+
+/* the switch_to macro calls resume, an asm function in entry.S which does the actual
+ * task switching.
+ */
+
+extern struct task_struct *resume(struct task_struct *prev, struct task_struct *next, int);
+#define switch_to(prev,next,last) last = resume(prev,next, \
+ (int)&((struct task_struct *)0)->thread)
+
+#endif /* __ASM_CRIS_SWITCH_TO_H */
diff --git a/arch/cris/include/asm/termios.h b/arch/cris/include/asm/termios.h
new file mode 100644
index 0000000..1991cd9
--- /dev/null
+++ b/arch/cris/include/asm/termios.h
@@ -0,0 +1,51 @@
+#ifndef _CRIS_TERMIOS_H
+#define _CRIS_TERMIOS_H
+
+#include <uapi/asm/termios.h>
+
+
+/* intr=^C quit=^\ erase=del kill=^U
+ eof=^D vtime=\0 vmin=\1 sxtc=\0
+ start=^Q stop=^S susp=^Z eol=\0
+ reprint=^R discard=^U werase=^W lnext=^V
+ eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+
+/*
+ * Translate a "termio" structure into a "termios". Ugh.
+ */
+#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
+ unsigned short __tmp; \
+ get_user(__tmp,&(termio)->x); \
+ *(unsigned short *) &(termios)->x = __tmp; \
+}
+
+#define user_termio_to_kernel_termios(termios, termio) \
+({ \
+ SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
+ SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
+ SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
+ SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
+ copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
+})
+
+/*
+ * Translate a "termios" structure into a "termio". Ugh.
+ */
+#define kernel_termios_to_user_termio(termio, termios) \
+({ \
+ put_user((termios)->c_iflag, &(termio)->c_iflag); \
+ put_user((termios)->c_oflag, &(termio)->c_oflag); \
+ put_user((termios)->c_cflag, &(termio)->c_cflag); \
+ put_user((termios)->c_lflag, &(termio)->c_lflag); \
+ put_user((termios)->c_line, &(termio)->c_line); \
+ copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
+})
+
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
+
+#endif /* _CRIS_TERMIOS_H */
diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h
new file mode 100644
index 0000000..4ead1b4
--- /dev/null
+++ b/arch/cris/include/asm/thread_info.h
@@ -0,0 +1,85 @@
+/* thread_info.h: CRIS low-level thread information
+ *
+ * Copyright (C) 2002 David Howells (dhowells@redhat.com)
+ * - Incorporating suggestions made by Linus Torvalds and Dave Miller
+ *
+ * CRIS port by Axis Communications
+ */
+
+#ifndef _ASM_THREAD_INFO_H
+#define _ASM_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#include <asm/types.h>
+#include <asm/processor.h>
+#include <arch/thread_info.h>
+#include <asm/segment.h>
+#endif
+
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants must also be changed
+ */
+#ifndef __ASSEMBLY__
+struct thread_info {
+ struct task_struct *task; /* main task structure */
+ unsigned long flags; /* low level flags */
+ __u32 cpu; /* current CPU */
+ int preempt_count; /* 0 => preemptable, <0 => BUG */
+ __u32 tls; /* TLS for this thread */
+
+ mm_segment_t addr_limit; /* thread address space:
+ 0-0xBFFFFFFF for user-thead
+ 0-0xFFFFFFFF for kernel-thread
+ */
+ __u8 supervisor_stack[0];
+};
+
+#endif
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ */
+#ifndef __ASSEMBLY__
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .flags = 0, \
+ .cpu = 0, \
+ .preempt_count = INIT_PREEMPT_COUNT, \
+ .addr_limit = KERNEL_DS, \
+}
+
+#define init_thread_info (init_thread_union.thread_info)
+
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * thread information flags
+ * - these are process state flags that various assembly files may need to access
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
+#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
+#define TIF_SIGPENDING 2 /* signal pending */
+#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
+#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
+#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
+
+#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+
+#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
+#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/cris/include/asm/timex.h b/arch/cris/include/asm/timex.h
new file mode 100644
index 0000000..980924a
--- /dev/null
+++ b/arch/cris/include/asm/timex.h
@@ -0,0 +1,24 @@
+/*
+ * linux/include/asm-cris/timex.h
+ *
+ * CRIS architecture timex specifications
+ */
+
+#ifndef _ASM_CRIS_TIMEX_H
+#define _ASM_CRIS_TIMEX_H
+
+#include <arch/timex.h>
+
+/*
+ * We don't have a cycle-counter.. but we do not support SMP anyway where this is
+ * used so it does not matter.
+ */
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+ return 0;
+}
+
+#endif
diff --git a/arch/cris/include/asm/tlb.h b/arch/cris/include/asm/tlb.h
new file mode 100644
index 0000000..77384ea
--- /dev/null
+++ b/arch/cris/include/asm/tlb.h
@@ -0,0 +1,19 @@
+#ifndef _CRIS_TLB_H
+#define _CRIS_TLB_H
+
+#include <linux/pagemap.h>
+
+#include <arch/tlb.h>
+
+/*
+ * cris doesn't need any special per-pte or
+ * per-vma handling..
+ */
+#define tlb_start_vma(tlb, vma) do { } while (0)
+#define tlb_end_vma(tlb, vma) do { } while (0)
+#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
+
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+#include <asm-generic/tlb.h>
+
+#endif
diff --git a/arch/cris/include/asm/tlbflush.h b/arch/cris/include/asm/tlbflush.h
new file mode 100644
index 0000000..b424f43
--- /dev/null
+++ b/arch/cris/include/asm/tlbflush.h
@@ -0,0 +1,41 @@
+#ifndef _CRIS_TLBFLUSH_H
+#define _CRIS_TLBFLUSH_H
+
+#include <linux/mm.h>
+#include <asm/processor.h>
+#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
+
+/*
+ * TLB flushing (implemented in arch/cris/mm/tlb.c):
+ *
+ * - flush_tlb() flushes the current mm struct TLBs
+ * - flush_tlb_all() flushes all processes TLBs
+ * - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ * - flush_tlb_page(vma, vmaddr) flushes one page
+ * - flush_tlb_range(mm, start, end) flushes a range of pages
+ *
+ */
+
+extern void __flush_tlb_all(void);
+extern void __flush_tlb_mm(struct mm_struct *mm);
+extern void __flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long addr);
+
+#define flush_tlb_all __flush_tlb_all
+#define flush_tlb_mm __flush_tlb_mm
+#define flush_tlb_page __flush_tlb_page
+
+static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
+{
+ flush_tlb_mm(vma->vm_mm);
+}
+
+static inline void flush_tlb(void)
+{
+ flush_tlb_mm(current->mm);
+}
+
+#define flush_tlb_kernel_range(start, end) flush_tlb_all()
+
+#endif /* _CRIS_TLBFLUSH_H */
diff --git a/arch/cris/include/asm/uaccess.h b/arch/cris/include/asm/uaccess.h
new file mode 100644
index 0000000..56c7d57
--- /dev/null
+++ b/arch/cris/include/asm/uaccess.h
@@ -0,0 +1,421 @@
+/*
+ * Authors: Bjorn Wesen (bjornw@axis.com)
+ * Hans-Peter Nilsson (hp@axis.com)
+ */
+
+/* Asm:s have been tweaked (within the domain of correctness) to give
+ satisfactory results for "gcc version 2.96 20000427 (experimental)".
+
+ Check regularly...
+
+ Register $r9 is chosen for temporaries, being a call-clobbered register
+ first in line to be used (notably for local blocks), not colliding with
+ parameter registers. */
+
+#ifndef _CRIS_UACCESS_H
+#define _CRIS_UACCESS_H
+
+#ifndef __ASSEMBLY__
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+
+#define VERIFY_READ 0
+#define VERIFY_WRITE 1
+
+/*
+ * The fs value determines whether argument validity checking should be
+ * performed or not. If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ */
+
+#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
+
+/* addr_limit is the maximum accessible address for the task. we misuse
+ * the KERNEL_DS and USER_DS values to both assign and compare the
+ * addr_limit values through the equally misnamed get/set_fs macros.
+ * (see above)
+ */
+
+#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF)
+#define USER_DS MAKE_MM_SEG(TASK_SIZE)
+
+#define get_ds() (KERNEL_DS)
+#define get_fs() (current_thread_info()->addr_limit)
+#define set_fs(x) (current_thread_info()->addr_limit = (x))
+
+#define segment_eq(a, b) ((a).seg == (b).seg)
+
+#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
+#define __user_ok(addr, size) \
+ (((size) <= TASK_SIZE) && ((addr) <= TASK_SIZE-(size)))
+#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
+#define access_ok(type, addr, size) __access_ok((unsigned long)(addr), (size))
+
+#include <arch/uaccess.h>
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue. No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry {
+ unsigned long insn, fixup;
+};
+
+/*
+ * These are the main single-value transfer routines. They automatically
+ * use the right size if we just have the right pointer type.
+ *
+ * This gets kind of ugly. We want to return _two_ values in "get_user()"
+ * and yet we don't want to do any pointers, because that is too much
+ * of a performance impact. Thus we have a few rather ugly macros here,
+ * and hide all the ugliness from the user.
+ *
+ * The "__xxx" versions of the user access functions are versions that
+ * do not verify the address space, that must have been done previously
+ * with a separate "access_ok()" call (this is used when we do multiple
+ * accesses to the same area of user memory).
+ *
+ * As we use the same address space for kernel and user data on
+ * CRIS, we can just do these as direct assignments. (Of course, the
+ * exception handling means that it's no longer "just"...)
+ */
+#define get_user(x, ptr) \
+ __get_user_check((x), (ptr), sizeof(*(ptr)))
+#define put_user(x, ptr) \
+ __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+
+#define __get_user(x, ptr) \
+ __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+#define __put_user(x, ptr) \
+ __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+
+extern long __put_user_bad(void);
+
+#define __put_user_size(x, ptr, size, retval) \
+do { \
+ retval = 0; \
+ switch (size) { \
+ case 1: \
+ __put_user_asm(x, ptr, retval, "move.b"); \
+ break; \
+ case 2: \
+ __put_user_asm(x, ptr, retval, "move.w"); \
+ break; \
+ case 4: \
+ __put_user_asm(x, ptr, retval, "move.d"); \
+ break; \
+ case 8: \
+ __put_user_asm_64(x, ptr, retval); \
+ break; \
+ default: \
+ __put_user_bad(); \
+ } \
+} while (0)
+
+#define __get_user_size(x, ptr, size, retval) \
+do { \
+ retval = 0; \
+ switch (size) { \
+ case 1: \
+ __get_user_asm(x, ptr, retval, "move.b"); \
+ break; \
+ case 2: \
+ __get_user_asm(x, ptr, retval, "move.w"); \
+ break; \
+ case 4: \
+ __get_user_asm(x, ptr, retval, "move.d"); \
+ break; \
+ case 8: \
+ __get_user_asm_64(x, ptr, retval); \
+ break; \
+ default: \
+ (x) = __get_user_bad(); \
+ } \
+} while (0)
+
+#define __put_user_nocheck(x, ptr, size) \
+({ \
+ long __pu_err; \
+ __put_user_size((x), (ptr), (size), __pu_err); \
+ __pu_err; \
+})
+
+#define __put_user_check(x, ptr, size) \
+({ \
+ long __pu_err = -EFAULT; \
+ __typeof__(*(ptr)) *__pu_addr = (ptr); \
+ if (access_ok(VERIFY_WRITE, __pu_addr, size)) \
+ __put_user_size((x), __pu_addr, (size), __pu_err); \
+ __pu_err; \
+})
+
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct *)(x))
+
+
+
+#define __get_user_nocheck(x, ptr, size) \
+({ \
+ long __gu_err, __gu_val; \
+ __get_user_size(__gu_val, (ptr), (size), __gu_err); \
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \
+ __gu_err; \
+})
+
+#define __get_user_check(x, ptr, size) \
+({ \
+ long __gu_err = -EFAULT, __gu_val = 0; \
+ const __typeof__(*(ptr)) *__gu_addr = (ptr); \
+ if (access_ok(VERIFY_READ, __gu_addr, size)) \
+ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \
+ __gu_err; \
+})
+
+extern long __get_user_bad(void);
+
+/* More complex functions. Most are inline, but some call functions that
+ live in lib/usercopy.c */
+
+extern unsigned long __copy_user(void __user *to, const void *from, unsigned long n);
+extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
+extern unsigned long __do_clear_user(void __user *to, unsigned long n);
+
+static inline long
+__strncpy_from_user(char *dst, const char __user *src, long count)
+{
+ return __do_strncpy_from_user(dst, src, count);
+}
+
+static inline long
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+ long res = -EFAULT;
+
+ if (access_ok(VERIFY_READ, src, 1))
+ res = __do_strncpy_from_user(dst, src, count);
+ return res;
+}
+
+
+/* Note that these expand awfully if made into switch constructs, so
+ don't do that. */
+
+static inline unsigned long
+__constant_copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+ unsigned long ret = 0;
+
+ if (n == 0)
+ ;
+ else if (n == 1)
+ __asm_copy_from_user_1(to, from, ret);
+ else if (n == 2)
+ __asm_copy_from_user_2(to, from, ret);
+ else if (n == 3)
+ __asm_copy_from_user_3(to, from, ret);
+ else if (n == 4)
+ __asm_copy_from_user_4(to, from, ret);
+ else if (n == 5)
+ __asm_copy_from_user_5(to, from, ret);
+ else if (n == 6)
+ __asm_copy_from_user_6(to, from, ret);
+ else if (n == 7)
+ __asm_copy_from_user_7(to, from, ret);
+ else if (n == 8)
+ __asm_copy_from_user_8(to, from, ret);
+ else if (n == 9)
+ __asm_copy_from_user_9(to, from, ret);
+ else if (n == 10)
+ __asm_copy_from_user_10(to, from, ret);
+ else if (n == 11)
+ __asm_copy_from_user_11(to, from, ret);
+ else if (n == 12)
+ __asm_copy_from_user_12(to, from, ret);
+ else if (n == 13)
+ __asm_copy_from_user_13(to, from, ret);
+ else if (n == 14)
+ __asm_copy_from_user_14(to, from, ret);
+ else if (n == 15)
+ __asm_copy_from_user_15(to, from, ret);
+ else if (n == 16)
+ __asm_copy_from_user_16(to, from, ret);
+ else if (n == 20)
+ __asm_copy_from_user_20(to, from, ret);
+ else if (n == 24)
+ __asm_copy_from_user_24(to, from, ret);
+ else
+ ret = __copy_user_zeroing(to, from, n);
+
+ return ret;
+}
+
+/* Ditto, don't make a switch out of this. */
+
+static inline unsigned long
+__constant_copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+ unsigned long ret = 0;
+
+ if (n == 0)
+ ;
+ else if (n == 1)
+ __asm_copy_to_user_1(to, from, ret);
+ else if (n == 2)
+ __asm_copy_to_user_2(to, from, ret);
+ else if (n == 3)
+ __asm_copy_to_user_3(to, from, ret);
+ else if (n == 4)
+ __asm_copy_to_user_4(to, from, ret);
+ else if (n == 5)
+ __asm_copy_to_user_5(to, from, ret);
+ else if (n == 6)
+ __asm_copy_to_user_6(to, from, ret);
+ else if (n == 7)
+ __asm_copy_to_user_7(to, from, ret);
+ else if (n == 8)
+ __asm_copy_to_user_8(to, from, ret);
+ else if (n == 9)
+ __asm_copy_to_user_9(to, from, ret);
+ else if (n == 10)
+ __asm_copy_to_user_10(to, from, ret);
+ else if (n == 11)
+ __asm_copy_to_user_11(to, from, ret);
+ else if (n == 12)
+ __asm_copy_to_user_12(to, from, ret);
+ else if (n == 13)
+ __asm_copy_to_user_13(to, from, ret);
+ else if (n == 14)
+ __asm_copy_to_user_14(to, from, ret);
+ else if (n == 15)
+ __asm_copy_to_user_15(to, from, ret);
+ else if (n == 16)
+ __asm_copy_to_user_16(to, from, ret);
+ else if (n == 20)
+ __asm_copy_to_user_20(to, from, ret);
+ else if (n == 24)
+ __asm_copy_to_user_24(to, from, ret);
+ else
+ ret = __copy_user(to, from, n);
+
+ return ret;
+}
+
+/* No switch, please. */
+
+static inline unsigned long
+__constant_clear_user(void __user *to, unsigned long n)
+{
+ unsigned long ret = 0;
+
+ if (n == 0)
+ ;
+ else if (n == 1)
+ __asm_clear_1(to, ret);
+ else if (n == 2)
+ __asm_clear_2(to, ret);
+ else if (n == 3)
+ __asm_clear_3(to, ret);
+ else if (n == 4)
+ __asm_clear_4(to, ret);
+ else if (n == 8)
+ __asm_clear_8(to, ret);
+ else if (n == 12)
+ __asm_clear_12(to, ret);
+ else if (n == 16)
+ __asm_clear_16(to, ret);
+ else if (n == 20)
+ __asm_clear_20(to, ret);
+ else if (n == 24)
+ __asm_clear_24(to, ret);
+ else
+ ret = __do_clear_user(to, n);
+
+ return ret;
+}
+
+
+static inline size_t clear_user(void __user *to, size_t n)
+{
+ if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
+ return n;
+ if (__builtin_constant_p(n))
+ return __constant_clear_user(to, n);
+ else
+ return __do_clear_user(to, n);
+}
+
+static inline size_t copy_from_user(void *to, const void __user *from, size_t n)
+{
+ if (unlikely(!access_ok(VERIFY_READ, from, n))) {
+ memset(to, 0, n);
+ return n;
+ }
+ if (__builtin_constant_p(n))
+ return __constant_copy_from_user(to, from, n);
+ else
+ return __copy_user_zeroing(to, from, n);
+}
+
+static inline size_t copy_to_user(void __user *to, const void *from, size_t n)
+{
+ if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
+ return n;
+ if (__builtin_constant_p(n))
+ return __constant_copy_to_user(to, from, n);
+ else
+ return __copy_user(to, from, n);
+}
+
+/* We let the __ versions of copy_from/to_user inline, because they're often
+ * used in fast paths and have only a small space overhead.
+ */
+
+static inline unsigned long
+__generic_copy_from_user_nocheck(void *to, const void __user *from,
+ unsigned long n)
+{
+ return __copy_user_zeroing(to, from, n);
+}
+
+static inline unsigned long
+__generic_copy_to_user_nocheck(void __user *to, const void *from,
+ unsigned long n)
+{
+ return __copy_user(to, from, n);
+}
+
+static inline unsigned long
+__generic_clear_user_nocheck(void __user *to, unsigned long n)
+{
+ return __do_clear_user(to, n);
+}
+
+/* without checking */
+
+#define __copy_to_user(to, from, n) \
+ __generic_copy_to_user_nocheck((to), (from), (n))
+#define __copy_from_user(to, from, n) \
+ __generic_copy_from_user_nocheck((to), (from), (n))
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+#define __clear_user(to, n) __generic_clear_user_nocheck((to), (n))
+
+#define strlen_user(str) strnlen_user((str), 0x7ffffffe)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _CRIS_UACCESS_H */
diff --git a/arch/cris/include/asm/ucontext.h b/arch/cris/include/asm/ucontext.h
new file mode 100644
index 0000000..eed6ad5
--- /dev/null
+++ b/arch/cris/include/asm/ucontext.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_CRIS_UCONTEXT_H
+#define _ASM_CRIS_UCONTEXT_H
+
+struct ucontext {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ struct sigcontext uc_mcontext;
+ sigset_t uc_sigmask; /* mask last for extensibility */
+};
+
+#endif /* !_ASM_CRIS_UCONTEXT_H */
diff --git a/arch/cris/include/asm/unaligned.h b/arch/cris/include/asm/unaligned.h
new file mode 100644
index 0000000..7b3f3fe
--- /dev/null
+++ b/arch/cris/include/asm/unaligned.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_CRIS_UNALIGNED_H
+#define _ASM_CRIS_UNALIGNED_H
+
+/*
+ * CRIS can do unaligned accesses itself.
+ */
+#include <linux/unaligned/access_ok.h>
+#include <linux/unaligned/generic.h>
+
+#define get_unaligned __get_unaligned_le
+#define put_unaligned __put_unaligned_le
+
+#endif /* _ASM_CRIS_UNALIGNED_H */
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
new file mode 100644
index 0000000..9c23535
--- /dev/null
+++ b/arch/cris/include/asm/unistd.h
@@ -0,0 +1,36 @@
+#ifndef _ASM_CRIS_UNISTD_H_
+#define _ASM_CRIS_UNISTD_H_
+
+#include <uapi/asm/unistd.h>
+
+
+#define NR_syscalls 365
+
+#include <arch/unistd.h>
+
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_OLD_STAT
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLD_MMAP
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_CLONE
+
+#endif /* _ASM_CRIS_UNISTD_H_ */
diff --git a/arch/cris/include/asm/user.h b/arch/cris/include/asm/user.h
new file mode 100644
index 0000000..59147cf
--- /dev/null
+++ b/arch/cris/include/asm/user.h
@@ -0,0 +1,52 @@
+#ifndef __ASM_CRIS_USER_H
+#define __ASM_CRIS_USER_H
+
+#include <linux/types.h>
+#include <asm/ptrace.h>
+#include <asm/page.h>
+#include <arch/user.h>
+
+/*
+ * Core file format: The core file is written in such a way that gdb
+ * can understand it and provide useful information to the user (under
+ * linux we use the `trad-core' bfd). The file contents are as follows:
+ *
+ * upage: 1 page consisting of a user struct that tells gdb
+ * what is present in the file. Directly after this is a
+ * copy of the task_struct, which is currently not used by gdb,
+ * but it may come in handy at some point. All of the registers
+ * are stored as part of the upage. The upage should always be
+ * only one page long.
+ * data: The data segment follows next. We use current->end_text to
+ * current->brk to pick up all of the user variables, plus any memory
+ * that may have been sbrk'ed. No attempt is made to determine if a
+ * page is demand-zero or if a page is totally unused, we just cover
+ * the entire range. All of the addresses are rounded in such a way
+ * that an integral number of pages is written.
+ * stack: We need the stack information in order to get a meaningful
+ * backtrace. We need to write the data from usp to
+ * current->start_stack, so we round each of these in order to be able
+ * to write an integer number of pages.
+ */
+
+struct user {
+ struct user_regs_struct regs; /* entire machine state */
+ size_t u_tsize; /* text size (pages) */
+ size_t u_dsize; /* data size (pages) */
+ size_t u_ssize; /* stack size (pages) */
+ unsigned long start_code; /* text starting address */
+ unsigned long start_data; /* data starting address */
+ unsigned long start_stack; /* stack starting address */
+ long int signal; /* signal causing core dump */
+ unsigned long u_ar0; /* help gdb find registers */
+ unsigned long magic; /* identifies a core file */
+ char u_comm[32]; /* user command name */
+};
+
+#define NBPG PAGE_SIZE
+#define UPAGES 1
+#define HOST_TEXT_START_ADDR (u.start_code)
+#define HOST_DATA_START_ADDR (u.start_data)
+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
+
+#endif /* __ASM_CRIS_USER_H */