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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/score/include
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/score/include')
-rw-r--r--kernel/arch/score/include/asm/Kbuild15
-rw-r--r--kernel/arch/score/include/asm/asm-offsets.h1
-rw-r--r--kernel/arch/score/include/asm/asmmacro.h161
-rw-r--r--kernel/arch/score/include/asm/atomic.h7
-rw-r--r--kernel/arch/score/include/asm/bitops.h10
-rw-r--r--kernel/arch/score/include/asm/bug.h17
-rw-r--r--kernel/arch/score/include/asm/bugs.h6
-rw-r--r--kernel/arch/score/include/asm/cache.h7
-rw-r--r--kernel/arch/score/include/asm/cacheflush.h48
-rw-r--r--kernel/arch/score/include/asm/checksum.h244
-rw-r--r--kernel/arch/score/include/asm/cmpxchg.h49
-rw-r--r--kernel/arch/score/include/asm/current.h6
-rw-r--r--kernel/arch/score/include/asm/delay.h28
-rw-r--r--kernel/arch/score/include/asm/device.h6
-rw-r--r--kernel/arch/score/include/asm/div64.h6
-rw-r--r--kernel/arch/score/include/asm/dma.h8
-rw-r--r--kernel/arch/score/include/asm/elf.h97
-rw-r--r--kernel/arch/score/include/asm/emergency-restart.h6
-rw-r--r--kernel/arch/score/include/asm/exec.h6
-rw-r--r--kernel/arch/score/include/asm/fixmap.h82
-rw-r--r--kernel/arch/score/include/asm/ftrace.h4
-rw-r--r--kernel/arch/score/include/asm/futex.h6
-rw-r--r--kernel/arch/score/include/asm/hardirq.h6
-rw-r--r--kernel/arch/score/include/asm/hw_irq.h4
-rw-r--r--kernel/arch/score/include/asm/io.h8
-rw-r--r--kernel/arch/score/include/asm/irq.h25
-rw-r--r--kernel/arch/score/include/asm/irq_regs.h11
-rw-r--r--kernel/arch/score/include/asm/irqflags.h120
-rw-r--r--kernel/arch/score/include/asm/kdebug.h6
-rw-r--r--kernel/arch/score/include/asm/kmap_types.h6
-rw-r--r--kernel/arch/score/include/asm/linkage.h7
-rw-r--r--kernel/arch/score/include/asm/local.h6
-rw-r--r--kernel/arch/score/include/asm/local64.h1
-rw-r--r--kernel/arch/score/include/asm/mmu.h6
-rw-r--r--kernel/arch/score/include/asm/mmu_context.h113
-rw-r--r--kernel/arch/score/include/asm/module.h35
-rw-r--r--kernel/arch/score/include/asm/mutex.h6
-rw-r--r--kernel/arch/score/include/asm/page.h93
-rw-r--r--kernel/arch/score/include/asm/pci.h4
-rw-r--r--kernel/arch/score/include/asm/percpu.h6
-rw-r--r--kernel/arch/score/include/asm/pgalloc.h86
-rw-r--r--kernel/arch/score/include/asm/pgtable-bits.h24
-rw-r--r--kernel/arch/score/include/asm/pgtable.h268
-rw-r--r--kernel/arch/score/include/asm/processor.h105
-rw-r--r--kernel/arch/score/include/asm/ptrace.h25
-rw-r--r--kernel/arch/score/include/asm/scoreregs.h51
-rw-r--r--kernel/arch/score/include/asm/segment.h21
-rw-r--r--kernel/arch/score/include/asm/setup.h36
-rw-r--r--kernel/arch/score/include/asm/shmparam.h6
-rw-r--r--kernel/arch/score/include/asm/string.h8
-rw-r--r--kernel/arch/score/include/asm/switch_to.h13
-rw-r--r--kernel/arch/score/include/asm/syscalls.h8
-rw-r--r--kernel/arch/score/include/asm/thread_info.h92
-rw-r--r--kernel/arch/score/include/asm/timex.h8
-rw-r--r--kernel/arch/score/include/asm/tlb.h17
-rw-r--r--kernel/arch/score/include/asm/tlbflush.h142
-rw-r--r--kernel/arch/score/include/asm/topology.h6
-rw-r--r--kernel/arch/score/include/asm/uaccess.h429
-rw-r--r--kernel/arch/score/include/asm/ucontext.h1
-rw-r--r--kernel/arch/score/include/asm/unaligned.h6
-rw-r--r--kernel/arch/score/include/asm/user.h21
-rw-r--r--kernel/arch/score/include/uapi/asm/Kbuild34
-rw-r--r--kernel/arch/score/include/uapi/asm/auxvec.h4
-rw-r--r--kernel/arch/score/include/uapi/asm/bitsperlong.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/byteorder.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/errno.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/fcntl.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/ioctl.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/ioctls.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/ipcbuf.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/kvm_para.h1
-rw-r--r--kernel/arch/score/include/uapi/asm/mman.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/msgbuf.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/param.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/poll.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/posix_types.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/ptrace.h65
-rw-r--r--kernel/arch/score/include/uapi/asm/resource.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/sembuf.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/setup.h9
-rw-r--r--kernel/arch/score/include/uapi/asm/shmbuf.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/sigcontext.h22
-rw-r--r--kernel/arch/score/include/uapi/asm/siginfo.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/signal.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/socket.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/sockios.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/stat.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/statfs.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/swab.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/termbits.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/termios.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/types.h6
-rw-r--r--kernel/arch/score/include/uapi/asm/unistd.h11
93 files changed, 2952 insertions, 0 deletions
diff --git a/kernel/arch/score/include/asm/Kbuild b/kernel/arch/score/include/asm/Kbuild
new file mode 100644
index 000000000..83ed116d4
--- /dev/null
+++ b/kernel/arch/score/include/asm/Kbuild
@@ -0,0 +1,15 @@
+
+header-y +=
+
+
+generic-y += barrier.h
+generic-y += clkdev.h
+generic-y += cputime.h
+generic-y += irq_work.h
+generic-y += mcs_spinlock.h
+generic-y += preempt.h
+generic-y += scatterlist.h
+generic-y += sections.h
+generic-y += trace_clock.h
+generic-y += xor.h
+generic-y += serial.h
diff --git a/kernel/arch/score/include/asm/asm-offsets.h b/kernel/arch/score/include/asm/asm-offsets.h
new file mode 100644
index 000000000..d370ee36a
--- /dev/null
+++ b/kernel/arch/score/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/kernel/arch/score/include/asm/asmmacro.h b/kernel/arch/score/include/asm/asmmacro.h
new file mode 100644
index 000000000..a04a54cea
--- /dev/null
+++ b/kernel/arch/score/include/asm/asmmacro.h
@@ -0,0 +1,161 @@
+#ifndef _ASM_SCORE_ASMMACRO_H
+#define _ASM_SCORE_ASMMACRO_H
+
+#include <asm/asm-offsets.h>
+
+#ifdef __ASSEMBLY__
+
+.macro SAVE_ALL
+ mfcr r30, cr0
+ mv r31, r0
+ nop
+ /* if UMs == 1, change stack. */
+ slli.c r30, r30, 28
+ bpl 1f
+ la r31, kernelsp
+ lw r31, [r31]
+1:
+ mv r30, r0
+ addri r0, r31, -PT_SIZE
+
+ sw r30, [r0, PT_R0]
+ .set r1
+ sw r1, [r0, PT_R1]
+ .set nor1
+ sw r2, [r0, PT_R2]
+ sw r3, [r0, PT_R3]
+ sw r4, [r0, PT_R4]
+ sw r5, [r0, PT_R5]
+ sw r6, [r0, PT_R6]
+ sw r7, [r0, PT_R7]
+
+ sw r8, [r0, PT_R8]
+ sw r9, [r0, PT_R9]
+ sw r10, [r0, PT_R10]
+ sw r11, [r0, PT_R11]
+ sw r12, [r0, PT_R12]
+ sw r13, [r0, PT_R13]
+ sw r14, [r0, PT_R14]
+ sw r15, [r0, PT_R15]
+
+ sw r16, [r0, PT_R16]
+ sw r17, [r0, PT_R17]
+ sw r18, [r0, PT_R18]
+ sw r19, [r0, PT_R19]
+ sw r20, [r0, PT_R20]
+ sw r21, [r0, PT_R21]
+ sw r22, [r0, PT_R22]
+ sw r23, [r0, PT_R23]
+
+ sw r24, [r0, PT_R24]
+ sw r25, [r0, PT_R25]
+ sw r25, [r0, PT_R25]
+ sw r26, [r0, PT_R26]
+ sw r27, [r0, PT_R27]
+
+ sw r28, [r0, PT_R28]
+ sw r29, [r0, PT_R29]
+ orri r28, r0, 0x1fff
+ li r31, 0x00001fff
+ xor r28, r28, r31
+
+ mfcehl r30, r31
+ sw r30, [r0, PT_CEH]
+ sw r31, [r0, PT_CEL]
+
+ mfcr r31, cr0
+ sw r31, [r0, PT_PSR]
+
+ mfcr r31, cr1
+ sw r31, [r0, PT_CONDITION]
+
+ mfcr r31, cr2
+ sw r31, [r0, PT_ECR]
+
+ mfcr r31, cr5
+ srli r31, r31, 1
+ slli r31, r31, 1
+ sw r31, [r0, PT_EPC]
+.endm
+
+.macro RESTORE_ALL_AND_RET
+ mfcr r30, cr0
+ srli r30, r30, 1
+ slli r30, r30, 1
+ mtcr r30, cr0
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ .set r1
+ ldis r1, 0x00ff
+ and r30, r30, r1
+ not r1, r1
+ lw r31, [r0, PT_PSR]
+ and r31, r31, r1
+ .set nor1
+ or r31, r31, r30
+ mtcr r31, cr0
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ lw r30, [r0, PT_CONDITION]
+ mtcr r30, cr1
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ lw r30, [r0, PT_CEH]
+ lw r31, [r0, PT_CEL]
+ mtcehl r30, r31
+
+ .set r1
+ lw r1, [r0, PT_R1]
+ .set nor1
+ lw r2, [r0, PT_R2]
+ lw r3, [r0, PT_R3]
+ lw r4, [r0, PT_R4]
+ lw r5, [r0, PT_R5]
+ lw r6, [r0, PT_R6]
+ lw r7, [r0, PT_R7]
+
+ lw r8, [r0, PT_R8]
+ lw r9, [r0, PT_R9]
+ lw r10, [r0, PT_R10]
+ lw r11, [r0, PT_R11]
+ lw r12, [r0, PT_R12]
+ lw r13, [r0, PT_R13]
+ lw r14, [r0, PT_R14]
+ lw r15, [r0, PT_R15]
+
+ lw r16, [r0, PT_R16]
+ lw r17, [r0, PT_R17]
+ lw r18, [r0, PT_R18]
+ lw r19, [r0, PT_R19]
+ lw r20, [r0, PT_R20]
+ lw r21, [r0, PT_R21]
+ lw r22, [r0, PT_R22]
+ lw r23, [r0, PT_R23]
+
+ lw r24, [r0, PT_R24]
+ lw r25, [r0, PT_R25]
+ lw r26, [r0, PT_R26]
+ lw r27, [r0, PT_R27]
+ lw r28, [r0, PT_R28]
+ lw r29, [r0, PT_R29]
+
+ lw r30, [r0, PT_EPC]
+ lw r0, [r0, PT_R0]
+ mtcr r30, cr5
+ rte
+.endm
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_SCORE_ASMMACRO_H */
diff --git a/kernel/arch/score/include/asm/atomic.h b/kernel/arch/score/include/asm/atomic.h
new file mode 100644
index 000000000..edf33dbde
--- /dev/null
+++ b/kernel/arch/score/include/asm/atomic.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_SCORE_ATOMIC_H
+#define _ASM_SCORE_ATOMIC_H
+
+#include <asm/cmpxchg.h>
+#include <asm-generic/atomic.h>
+
+#endif /* _ASM_SCORE_ATOMIC_H */
diff --git a/kernel/arch/score/include/asm/bitops.h b/kernel/arch/score/include/asm/bitops.h
new file mode 100644
index 000000000..c1bf8d6d0
--- /dev/null
+++ b/kernel/arch/score/include/asm/bitops.h
@@ -0,0 +1,10 @@
+#ifndef _ASM_SCORE_BITOPS_H
+#define _ASM_SCORE_BITOPS_H
+
+#include <asm/byteorder.h> /* swab32 */
+#include <asm/barrier.h>
+
+#include <asm-generic/bitops.h>
+#include <asm-generic/bitops/__fls.h>
+
+#endif /* _ASM_SCORE_BITOPS_H */
diff --git a/kernel/arch/score/include/asm/bug.h b/kernel/arch/score/include/asm/bug.h
new file mode 100644
index 000000000..fd7164af1
--- /dev/null
+++ b/kernel/arch/score/include/asm/bug.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_SCORE_BUG_H
+#define _ASM_SCORE_BUG_H
+
+#include <asm-generic/bug.h>
+
+struct pt_regs;
+extern void __die(const char *, struct pt_regs *, const char *,
+ const char *, unsigned long) __attribute__((noreturn));
+extern void __die_if_kernel(const char *, struct pt_regs *, const char *,
+ const char *, unsigned long);
+
+#define die(msg, regs) \
+ __die(msg, regs, __FILE__ ":", __func__, __LINE__)
+#define die_if_kernel(msg, regs) \
+ __die_if_kernel(msg, regs, __FILE__ ":", __func__, __LINE__)
+
+#endif /* _ASM_SCORE_BUG_H */
diff --git a/kernel/arch/score/include/asm/bugs.h b/kernel/arch/score/include/asm/bugs.h
new file mode 100644
index 000000000..a062e1056
--- /dev/null
+++ b/kernel/arch/score/include/asm/bugs.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_BUGS_H
+#define _ASM_SCORE_BUGS_H
+
+#include <asm-generic/bugs.h>
+
+#endif /* _ASM_SCORE_BUGS_H */
diff --git a/kernel/arch/score/include/asm/cache.h b/kernel/arch/score/include/asm/cache.h
new file mode 100644
index 000000000..ae3d59f2d
--- /dev/null
+++ b/kernel/arch/score/include/asm/cache.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_SCORE_CACHE_H
+#define _ASM_SCORE_CACHE_H
+
+#define L1_CACHE_SHIFT 4
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#endif /* _ASM_SCORE_CACHE_H */
diff --git a/kernel/arch/score/include/asm/cacheflush.h b/kernel/arch/score/include/asm/cacheflush.h
new file mode 100644
index 000000000..1d545d0ce
--- /dev/null
+++ b/kernel/arch/score/include/asm/cacheflush.h
@@ -0,0 +1,48 @@
+#ifndef _ASM_SCORE_CACHEFLUSH_H
+#define _ASM_SCORE_CACHEFLUSH_H
+
+/* Keep includes the same across arches. */
+#include <linux/mm.h>
+
+extern void flush_cache_all(void);
+extern void flush_cache_mm(struct mm_struct *mm);
+extern void flush_cache_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+extern void flush_cache_page(struct vm_area_struct *vma,
+ unsigned long page, unsigned long pfn);
+extern void flush_cache_sigtramp(unsigned long addr);
+extern void flush_icache_all(void);
+extern void flush_icache_range(unsigned long start, unsigned long end);
+extern void flush_dcache_range(unsigned long start, unsigned long end);
+extern void flush_dcache_page(struct page *page);
+
+#define PG_dcache_dirty PG_arch_1
+
+#define flush_cache_dup_mm(mm) do {} while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
+#define flush_dcache_mmap_lock(mapping) do {} while (0)
+#define flush_dcache_mmap_unlock(mapping) do {} while (0)
+#define flush_cache_vmap(start, end) do {} while (0)
+#define flush_cache_vunmap(start, end) do {} while (0)
+
+static inline void flush_icache_page(struct vm_area_struct *vma,
+ struct page *page)
+{
+ if (vma->vm_flags & VM_EXEC) {
+ void *v = page_address(page);
+ flush_icache_range((unsigned long) v,
+ (unsigned long) v + PAGE_SIZE);
+ }
+}
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy(dst, src, len)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+ do { \
+ memcpy(dst, src, len); \
+ if ((vma->vm_flags & VM_EXEC)) \
+ flush_cache_page(vma, vaddr, page_to_pfn(page));\
+ } while (0)
+
+#endif /* _ASM_SCORE_CACHEFLUSH_H */
diff --git a/kernel/arch/score/include/asm/checksum.h b/kernel/arch/score/include/asm/checksum.h
new file mode 100644
index 000000000..961bd6401
--- /dev/null
+++ b/kernel/arch/score/include/asm/checksum.h
@@ -0,0 +1,244 @@
+#ifndef _ASM_SCORE_CHECKSUM_H
+#define _ASM_SCORE_CHECKSUM_H
+
+#include <linux/in6.h>
+#include <asm/uaccess.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
+ */
+unsigned int csum_partial(const void *buff, int len, __wsum sum);
+unsigned int csum_partial_copy_from_user(const char *src, char *dst, int len,
+ unsigned int sum, int *csum_err);
+unsigned int csum_partial_copy(const char *src, char *dst,
+ int len, unsigned int sum);
+
+/*
+ * this is a new version of the above that records errors it finds in *errp,
+ * but continues and zeros the rest of the buffer.
+ */
+
+/*
+ * Copy and checksum to user
+ */
+#define HAVE_CSUM_COPY_USER
+static inline
+__wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
+ __wsum sum, int *err_ptr)
+{
+ sum = csum_partial(src, len, sum);
+ if (copy_to_user(dst, src, len)) {
+ *err_ptr = -EFAULT;
+ return (__force __wsum) -1; /* invalid checksum */
+ }
+ return sum;
+}
+
+
+#define csum_partial_copy_nocheck csum_partial_copy
+/*
+ * Fold a partial checksum without adding pseudo headers
+ */
+
+static inline __sum16 csum_fold(__wsum sum)
+{
+ /* the while loop is unnecessary really, it's always enough with two
+ iterations */
+ __asm__ __volatile__(
+ ".set volatile\n\t"
+ ".set\tr1\n\t"
+ "slli\tr1,%0, 16\n\t"
+ "add\t%0,%0, r1\n\t"
+ "cmp.c\tr1, %0\n\t"
+ "srli\t%0, %0, 16\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:ldi\tr30, 0xffff\n\t"
+ "xor\t%0, %0, r30\n\t"
+ "slli\t%0, %0, 16\n\t"
+ "srli\t%0, %0, 16\n\t"
+ ".set\tnor1\n\t"
+ ".set optimize\n\t"
+ : "=r" (sum)
+ : "0" (sum));
+ return sum;
+}
+
+/*
+ * This is a version of ip_compute_csum() optimized for IP headers,
+ * which always checksum on 4 octet boundaries.
+ *
+ * By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by
+ * Arnt Gulbrandsen.
+ */
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+ unsigned int sum;
+ unsigned long dummy;
+
+ __asm__ __volatile__(
+ ".set volatile\n\t"
+ ".set\tnor1\n\t"
+ "lw\t%0, [%1]\n\t"
+ "subri\t%2, %2, 4\n\t"
+ "slli\t%2, %2, 2\n\t"
+ "lw\t%3, [%1, 4]\n\t"
+ "add\t%2, %2, %1\n\t"
+ "add\t%0, %0, %3\n\t"
+ "cmp.c\t%3, %0\n\t"
+ "lw\t%3, [%1, 8]\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ "add\t%0, %0, %3\n\t"
+ "cmp.c\t%3, %0\n\t"
+ "lw\t%3, [%1, 12]\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %3\n\t"
+ "cmp.c\t%3, %0\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n"
+
+ "1:\tlw\t%3, [%1, 16]\n\t"
+ "addi\t%1, 4\n\t"
+ "add\t%0, %0, %3\n\t"
+ "cmp.c\t%3, %0\n\t"
+ "bleu\t2f\n\t"
+ "addi\t%0, 0x1\n"
+ "2:cmp.c\t%2, %1\n\t"
+ "bne\t1b\n\t"
+
+ ".set\tr1\n\t"
+ ".set optimize\n\t"
+ : "=&r" (sum), "=&r" (iph), "=&r" (ihl), "=&r" (dummy)
+ : "1" (iph), "2" (ihl));
+
+ return csum_fold(sum);
+}
+
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+ unsigned short proto, __wsum sum)
+{
+ unsigned long tmp = (ntohs(len) << 16) + proto * 256;
+ __asm__ __volatile__(
+ ".set volatile\n\t"
+ "add\t%0, %0, %2\n\t"
+ "cmp.c\t%2, %0\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ "add\t%0, %0, %3\n\t"
+ "cmp.c\t%3, %0\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ "add\t%0, %0, %4\n\t"
+ "cmp.c\t%4, %0\n\t"
+ "bleu\t1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ ".set optimize\n\t"
+ : "=r" (sum)
+ : "0" (daddr), "r"(saddr),
+ "r" (tmp),
+ "r" (sum));
+ return sum;
+}
+
+/*
+ * 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 unsigned short ip_compute_csum(const void *buff, int len)
+{
+ return csum_fold(csum_partial(buff, len, 0));
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+ const struct in6_addr *daddr,
+ __u32 len, unsigned short proto,
+ __wsum sum)
+{
+ __asm__ __volatile__(
+ ".set\tvolatile\t\t\t# csum_ipv6_magic\n\t"
+ "add\t%0, %0, %5\t\t\t# proto (long in network byte order)\n\t"
+ "cmp.c\t%5, %0\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %6\t\t\t# csum\n\t"
+ "cmp.c\t%6, %0\n\t"
+ "lw\t%1, [%2, 0]\t\t\t# four words source address\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "1:lw\t%1, [%2, 4]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%2,8]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%2, 12]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0,%1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 0]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 4]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 8]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 12]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ ".set\toptimize"
+ : "=r" (sum), "=r" (proto)
+ : "r" (saddr), "r" (daddr),
+ "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
+
+ return csum_fold(sum);
+}
+#endif /* _ASM_SCORE_CHECKSUM_H */
diff --git a/kernel/arch/score/include/asm/cmpxchg.h b/kernel/arch/score/include/asm/cmpxchg.h
new file mode 100644
index 000000000..f384839c3
--- /dev/null
+++ b/kernel/arch/score/include/asm/cmpxchg.h
@@ -0,0 +1,49 @@
+#ifndef _ASM_SCORE_CMPXCHG_H
+#define _ASM_SCORE_CMPXCHG_H
+
+#include <linux/irqflags.h>
+
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((struct __xchg_dummy *)(x))
+
+static inline
+unsigned long __xchg(volatile unsigned long *m, unsigned long val)
+{
+ unsigned long retval;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ retval = *m;
+ *m = val;
+ local_irq_restore(flags);
+ return retval;
+}
+
+#define xchg(ptr, v) \
+ ((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr), \
+ (unsigned long)(v)))
+
+static inline unsigned long __cmpxchg(volatile unsigned long *m,
+ unsigned long old, unsigned long new)
+{
+ unsigned long retval;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ retval = *m;
+ if (retval == old)
+ *m = new;
+ local_irq_restore(flags);
+ return retval;
+}
+
+#define cmpxchg(ptr, o, n) \
+ ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
+ (unsigned long)(o), \
+ (unsigned long)(n)))
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#include <asm-generic/cmpxchg-local.h>
+
+#endif /* _ASM_SCORE_CMPXCHG_H */
diff --git a/kernel/arch/score/include/asm/current.h b/kernel/arch/score/include/asm/current.h
new file mode 100644
index 000000000..16eae9cba
--- /dev/null
+++ b/kernel/arch/score/include/asm/current.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_CURRENT_H
+#define _ASM_SCORE_CURRENT_H
+
+#include <asm-generic/current.h>
+
+#endif /* _ASM_SCORE_CURRENT_H */
diff --git a/kernel/arch/score/include/asm/delay.h b/kernel/arch/score/include/asm/delay.h
new file mode 100644
index 000000000..529e49471
--- /dev/null
+++ b/kernel/arch/score/include/asm/delay.h
@@ -0,0 +1,28 @@
+#ifndef _ASM_SCORE_DELAY_H
+#define _ASM_SCORE_DELAY_H
+
+#include <asm-generic/param.h>
+
+static inline void __delay(unsigned long loops)
+{
+ /* 3 cycles per loop. */
+ __asm__ __volatile__ (
+ "1:\tsubi\t%0, 3\n\t"
+ "cmpz.c\t%0\n\t"
+ "ble\t1b\n\t"
+ : "=r" (loops)
+ : "0" (loops));
+}
+
+static inline void __udelay(unsigned long usecs)
+{
+ unsigned long loops_per_usec;
+
+ loops_per_usec = (loops_per_jiffy * HZ) / 1000000;
+
+ __delay(usecs * loops_per_usec);
+}
+
+#define udelay(usecs) __udelay(usecs)
+
+#endif /* _ASM_SCORE_DELAY_H */
diff --git a/kernel/arch/score/include/asm/device.h b/kernel/arch/score/include/asm/device.h
new file mode 100644
index 000000000..2dc7cc5d5
--- /dev/null
+++ b/kernel/arch/score/include/asm/device.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_DEVICE_H
+#define _ASM_SCORE_DEVICE_H
+
+#include <asm-generic/device.h>
+
+#endif /* _ASM_SCORE_DEVICE_H */
diff --git a/kernel/arch/score/include/asm/div64.h b/kernel/arch/score/include/asm/div64.h
new file mode 100644
index 000000000..75fae1982
--- /dev/null
+++ b/kernel/arch/score/include/asm/div64.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_DIV64_H
+#define _ASM_SCORE_DIV64_H
+
+#include <asm-generic/div64.h>
+
+#endif /* _ASM_SCORE_DIV64_H */
diff --git a/kernel/arch/score/include/asm/dma.h b/kernel/arch/score/include/asm/dma.h
new file mode 100644
index 000000000..9f4418529
--- /dev/null
+++ b/kernel/arch/score/include/asm/dma.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_SCORE_DMA_H
+#define _ASM_SCORE_DMA_H
+
+#include <asm/io.h>
+
+#define MAX_DMA_ADDRESS (0)
+
+#endif /* _ASM_SCORE_DMA_H */
diff --git a/kernel/arch/score/include/asm/elf.h b/kernel/arch/score/include/asm/elf.h
new file mode 100644
index 000000000..6a9421c69
--- /dev/null
+++ b/kernel/arch/score/include/asm/elf.h
@@ -0,0 +1,97 @@
+#ifndef _ASM_SCORE_ELF_H
+#define _ASM_SCORE_ELF_H
+
+#include <linux/ptrace.h>
+
+#define EM_SCORE7 135
+
+/* Relocation types. */
+#define R_SCORE_NONE 0
+#define R_SCORE_HI16 1
+#define R_SCORE_LO16 2
+#define R_SCORE_BCMP 3
+#define R_SCORE_24 4
+#define R_SCORE_PC19 5
+#define R_SCORE16_11 6
+#define R_SCORE16_PC8 7
+#define R_SCORE_ABS32 8
+#define R_SCORE_ABS16 9
+#define R_SCORE_DUMMY2 10
+#define R_SCORE_GP15 11
+#define R_SCORE_GNU_VTINHERIT 12
+#define R_SCORE_GNU_VTENTRY 13
+#define R_SCORE_GOT15 14
+#define R_SCORE_GOT_LO16 15
+#define R_SCORE_CALL15 16
+#define R_SCORE_GPREL32 17
+#define R_SCORE_REL32 18
+#define R_SCORE_DUMMY_HI16 19
+#define R_SCORE_IMM30 20
+#define R_SCORE_IMM32 21
+
+/* ELF register definitions */
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Score does not have fp regs. */
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t;
+
+#define elf_check_arch(x) ((x)->e_machine == EM_SCORE7)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS ELFCLASS32
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_DATA ELFDATA2LSB
+#define ELF_ARCH EM_SCORE7
+
+struct task_struct;
+struct pt_regs;
+
+#define CORE_DUMP_USE_REGSET
+#define ELF_EXEC_PAGESIZE PAGE_SIZE
+
+/* This yields a mask that user programs can use to figure out what
+ instruction set this cpu supports. This could be done in userspace,
+ but it's not easy, and we've already done it here. */
+
+#define ELF_HWCAP (0)
+
+/* This yields a string that ld.so will use to load implementation
+ specific libraries for optimization. This is more specific in
+ intent than poking at uname or /proc/cpuinfo.
+
+ For the moment, we have only optimizations for the Intel generations,
+ but that could change... */
+
+#define ELF_PLATFORM (NULL)
+
+#define ELF_PLAT_INIT(_r, load_addr) \
+do { \
+ _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
+ _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
+ _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
+ _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
+ _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
+ _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
+ _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
+ _r->regs[30] = _r->regs[31] = 0; \
+} while (0)
+
+/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
+ use of this is to invoke "./ld.so someprog" to test out a new version of
+ the loader. We need to make sure that it is out of the way of the program
+ that it will "exec", and that there is sufficient room for the brk. */
+
+#ifndef ELF_ET_DYN_BASE
+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
+#endif
+
+#endif /* _ASM_SCORE_ELF_H */
diff --git a/kernel/arch/score/include/asm/emergency-restart.h b/kernel/arch/score/include/asm/emergency-restart.h
new file mode 100644
index 000000000..ca31e9803
--- /dev/null
+++ b/kernel/arch/score/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_EMERGENCY_RESTART_H
+#define _ASM_SCORE_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_SCORE_EMERGENCY_RESTART_H */
diff --git a/kernel/arch/score/include/asm/exec.h b/kernel/arch/score/include/asm/exec.h
new file mode 100644
index 000000000..f9f3cd59c
--- /dev/null
+++ b/kernel/arch/score/include/asm/exec.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_EXEC_H
+#define _ASM_SCORE_EXEC_H
+
+extern unsigned long arch_align_stack(unsigned long sp);
+
+#endif /* _ASM_SCORE_EXEC_H */
diff --git a/kernel/arch/score/include/asm/fixmap.h b/kernel/arch/score/include/asm/fixmap.h
new file mode 100644
index 000000000..ee1676694
--- /dev/null
+++ b/kernel/arch/score/include/asm/fixmap.h
@@ -0,0 +1,82 @@
+#ifndef _ASM_SCORE_FIXMAP_H
+#define _ASM_SCORE_FIXMAP_H
+
+#include <asm/page.h>
+
+#define PHY_RAM_BASE 0x00000000
+#define PHY_IO_BASE 0x10000000
+
+#define VIRTUAL_RAM_BASE 0xa0000000
+#define VIRTUAL_IO_BASE 0xb0000000
+
+#define RAM_SPACE_SIZE 0x10000000
+#define IO_SPACE_SIZE 0x10000000
+
+/* Kernel unmapped, cached 512MB */
+#define KSEG1 0xa0000000
+
+/*
+ * Here we define all the compile-time 'special' virtual
+ * addresses. The point is to have a constant address at
+ * compile time, but to set the physical address only
+ * in the boot process. We allocate these special addresses
+ * from the end of virtual memory (0xfffff000) backwards.
+ * Also this lets us do fail-safe vmalloc(), we
+ * can guarantee that these special addresses and
+ * vmalloc()-ed addresses never overlap.
+ *
+ * these 'compile-time allocated' memory buffers are
+ * fixed-size 4k pages. (or larger if used with an increment
+ * highger than 1) use fixmap_set(idx,phys) to associate
+ * physical memory with fixmap indices.
+ *
+ * TLB entries of such buffers will not be flushed across
+ * task switches.
+ */
+
+/*
+ * on UP currently we will have no trace of the fixmap mechanizm,
+ * no page table allocations, etc. This might change in the
+ * future, say framebuffers for the console driver(s) could be
+ * fix-mapped?
+ */
+enum fixed_addresses {
+#define FIX_N_COLOURS 8
+ FIX_CMAP_BEGIN,
+ FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
+ __end_of_fixed_addresses
+};
+
+/*
+ * used by vmalloc.c.
+ *
+ * Leave one empty page between vmalloc'ed areas and
+ * the start of the fixmap, and leave one page empty
+ * at the top of mem..
+ */
+#define FIXADDR_TOP ((unsigned long)(long)(int)0xfefe0000)
+#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
+
+#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
+#define __virt_to_fix(x) \
+ ((FIXADDR_TOP - ((x) & PAGE_MASK)) >> PAGE_SHIFT)
+
+extern void __this_fixmap_does_not_exist(void);
+
+/*
+ * 'index to address' translation. If anyone tries to use the idx
+ * directly without tranlation, we catch the bug with a NULL-deference
+ * kernel oops. Illegal ranges of incoming indices are caught too.
+ */
+static inline unsigned long fix_to_virt(const unsigned int idx)
+{
+ return __fix_to_virt(idx);
+}
+
+static inline unsigned long virt_to_fix(const unsigned long vaddr)
+{
+ return __virt_to_fix(vaddr);
+}
+
+#endif /* _ASM_SCORE_FIXMAP_H */
diff --git a/kernel/arch/score/include/asm/ftrace.h b/kernel/arch/score/include/asm/ftrace.h
new file mode 100644
index 000000000..79d6f10e1
--- /dev/null
+++ b/kernel/arch/score/include/asm/ftrace.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SCORE_FTRACE_H
+#define _ASM_SCORE_FTRACE_H
+
+#endif /* _ASM_SCORE_FTRACE_H */
diff --git a/kernel/arch/score/include/asm/futex.h b/kernel/arch/score/include/asm/futex.h
new file mode 100644
index 000000000..1dca2420f
--- /dev/null
+++ b/kernel/arch/score/include/asm/futex.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_FUTEX_H
+#define _ASM_SCORE_FUTEX_H
+
+#include <asm-generic/futex.h>
+
+#endif /* _ASM_SCORE_FUTEX_H */
diff --git a/kernel/arch/score/include/asm/hardirq.h b/kernel/arch/score/include/asm/hardirq.h
new file mode 100644
index 000000000..dc932c50d
--- /dev/null
+++ b/kernel/arch/score/include/asm/hardirq.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_HARDIRQ_H
+#define _ASM_SCORE_HARDIRQ_H
+
+#include <asm-generic/hardirq.h>
+
+#endif /* _ASM_SCORE_HARDIRQ_H */
diff --git a/kernel/arch/score/include/asm/hw_irq.h b/kernel/arch/score/include/asm/hw_irq.h
new file mode 100644
index 000000000..4caafb2b5
--- /dev/null
+++ b/kernel/arch/score/include/asm/hw_irq.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SCORE_HW_IRQ_H
+#define _ASM_SCORE_HW_IRQ_H
+
+#endif /* _ASM_SCORE_HW_IRQ_H */
diff --git a/kernel/arch/score/include/asm/io.h b/kernel/arch/score/include/asm/io.h
new file mode 100644
index 000000000..574c8827a
--- /dev/null
+++ b/kernel/arch/score/include/asm/io.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_SCORE_IO_H
+#define _ASM_SCORE_IO_H
+
+#include <asm-generic/io.h>
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+#endif /* _ASM_SCORE_IO_H */
diff --git a/kernel/arch/score/include/asm/irq.h b/kernel/arch/score/include/asm/irq.h
new file mode 100644
index 000000000..c883f3df3
--- /dev/null
+++ b/kernel/arch/score/include/asm/irq.h
@@ -0,0 +1,25 @@
+#ifndef _ASM_SCORE_IRQ_H
+#define _ASM_SCORE_IRQ_H
+
+#define EXCEPTION_VECTOR_BASE_ADDR 0xa0000000
+#define VECTOR_ADDRESS_OFFSET_MODE4 0
+#define VECTOR_ADDRESS_OFFSET_MODE16 1
+
+#define DEBUG_VECTOR_SIZE (0x4)
+#define DEBUG_VECTOR_BASE_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x1fc)
+
+#define GENERAL_VECTOR_SIZE (0x10)
+#define GENERAL_VECTOR_BASE_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x200)
+
+#define NR_IRQS 64
+#define IRQ_VECTOR_SIZE (0x10)
+#define IRQ_VECTOR_BASE_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x210)
+#define IRQ_VECTOR_END_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x5f0)
+
+#define irq_canonicalize(irq) (irq)
+
+#define IRQ_TIMER (7) /* Timer IRQ number of SPCT6600 */
+
+extern void interrupt_exception_vector(void);
+
+#endif /* _ASM_SCORE_IRQ_H */
diff --git a/kernel/arch/score/include/asm/irq_regs.h b/kernel/arch/score/include/asm/irq_regs.h
new file mode 100644
index 000000000..b8e881c9a
--- /dev/null
+++ b/kernel/arch/score/include/asm/irq_regs.h
@@ -0,0 +1,11 @@
+#ifndef _ASM_SCORE_IRQ_REGS_H
+#define _ASM_SCORE_IRQ_REGS_H
+
+#include <linux/thread_info.h>
+
+static inline struct pt_regs *get_irq_regs(void)
+{
+ return current_thread_info()->regs;
+}
+
+#endif /* _ASM_SCORE_IRQ_REGS_H */
diff --git a/kernel/arch/score/include/asm/irqflags.h b/kernel/arch/score/include/asm/irqflags.h
new file mode 100644
index 000000000..37c6ac9dd
--- /dev/null
+++ b/kernel/arch/score/include/asm/irqflags.h
@@ -0,0 +1,120 @@
+#ifndef _ASM_SCORE_IRQFLAGS_H
+#define _ASM_SCORE_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+static inline unsigned long arch_local_save_flags(void)
+{
+ unsigned long flags;
+
+ asm volatile(
+ " mfcr r8, cr0 \n"
+ " nop \n"
+ " nop \n"
+ " mv %0, r8 \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " ldi r9, 0x1 \n"
+ " and %0, %0, r9 \n"
+ : "=r" (flags)
+ :
+ : "r8", "r9");
+ return flags;
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+ unsigned long flags;
+
+ asm volatile(
+ " mfcr r8, cr0 \n"
+ " li r9, 0xfffffffe \n"
+ " nop \n"
+ " mv %0, r8 \n"
+ " and r8, r8, r9 \n"
+ " mtcr r8, cr0 \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ : "=r" (flags)
+ :
+ : "r8", "r9", "memory");
+
+ return flags;
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+ asm volatile(
+ " mfcr r8, cr0 \n"
+ " ldi r9, 0x1 \n"
+ " and %0, %0, r9 \n"
+ " or r8, r8, %0 \n"
+ " mtcr r8, cr0 \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ :
+ : "r"(flags)
+ : "r8", "r9", "memory");
+}
+
+static inline void arch_local_irq_enable(void)
+{
+ asm volatile(
+ " mfcr r8,cr0 \n"
+ " nop \n"
+ " nop \n"
+ " ori r8,0x1 \n"
+ " mtcr r8,cr0 \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ :
+ :
+ : "r8", "memory");
+}
+
+static inline void arch_local_irq_disable(void)
+{
+ asm volatile(
+ " mfcr r8,cr0 \n"
+ " nop \n"
+ " nop \n"
+ " srli r8,r8,1 \n"
+ " slli r8,r8,1 \n"
+ " mtcr r8,cr0 \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ " nop \n"
+ :
+ :
+ : "r8", "memory");
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+ return !(flags & 1);
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_SCORE_IRQFLAGS_H */
diff --git a/kernel/arch/score/include/asm/kdebug.h b/kernel/arch/score/include/asm/kdebug.h
new file mode 100644
index 000000000..a666e513f
--- /dev/null
+++ b/kernel/arch/score/include/asm/kdebug.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_KDEBUG_H
+#define _ASM_SCORE_KDEBUG_H
+
+#include <asm-generic/kdebug.h>
+
+#endif /* _ASM_SCORE_KDEBUG_H */
diff --git a/kernel/arch/score/include/asm/kmap_types.h b/kernel/arch/score/include/asm/kmap_types.h
new file mode 100644
index 000000000..6c46eb507
--- /dev/null
+++ b/kernel/arch/score/include/asm/kmap_types.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_KMAP_TYPES_H
+#define _ASM_SCORE_KMAP_TYPES_H
+
+#include <asm-generic/kmap_types.h>
+
+#endif /* _ASM_SCORE_KMAP_TYPES_H */
diff --git a/kernel/arch/score/include/asm/linkage.h b/kernel/arch/score/include/asm/linkage.h
new file mode 100644
index 000000000..2323a8ecf
--- /dev/null
+++ b/kernel/arch/score/include/asm/linkage.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_SCORE_LINKAGE_H
+#define _ASM_SCORE_LINKAGE_H
+
+#define __ALIGN .align 2
+#define __ALIGN_STR ".align 2"
+
+#endif /* _ASM_SCORE_LINKAGE_H */
diff --git a/kernel/arch/score/include/asm/local.h b/kernel/arch/score/include/asm/local.h
new file mode 100644
index 000000000..7e02f13db
--- /dev/null
+++ b/kernel/arch/score/include/asm/local.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_LOCAL_H
+#define _ASM_SCORE_LOCAL_H
+
+#include <asm-generic/local.h>
+
+#endif /* _ASM_SCORE_LOCAL_H */
diff --git a/kernel/arch/score/include/asm/local64.h b/kernel/arch/score/include/asm/local64.h
new file mode 100644
index 000000000..36c93b5cc
--- /dev/null
+++ b/kernel/arch/score/include/asm/local64.h
@@ -0,0 +1 @@
+#include <asm-generic/local64.h>
diff --git a/kernel/arch/score/include/asm/mmu.h b/kernel/arch/score/include/asm/mmu.h
new file mode 100644
index 000000000..676828e4c
--- /dev/null
+++ b/kernel/arch/score/include/asm/mmu.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_MMU_H
+#define _ASM_SCORE_MMU_H
+
+typedef unsigned long mm_context_t;
+
+#endif /* _ASM_SCORE_MMU_H */
diff --git a/kernel/arch/score/include/asm/mmu_context.h b/kernel/arch/score/include/asm/mmu_context.h
new file mode 100644
index 000000000..2644577c9
--- /dev/null
+++ b/kernel/arch/score/include/asm/mmu_context.h
@@ -0,0 +1,113 @@
+#ifndef _ASM_SCORE_MMU_CONTEXT_H
+#define _ASM_SCORE_MMU_CONTEXT_H
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <asm-generic/mm_hooks.h>
+
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/scoreregs.h>
+
+/*
+ * For the fast tlb miss handlers, we keep a per cpu array of pointers
+ * to the current pgd for each processor. Also, the proc. id is stuffed
+ * into the context register.
+ */
+extern unsigned long asid_cache;
+extern unsigned long pgd_current;
+
+#define TLBMISS_HANDLER_SETUP_PGD(pgd) (pgd_current = (unsigned long)(pgd))
+
+#define TLBMISS_HANDLER_SETUP() \
+do { \
+ write_c0_context(0); \
+ TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir) \
+} while (0)
+
+/*
+ * All unused by hardware upper bits will be considered
+ * as a software asid extension.
+ */
+#define ASID_VERSION_MASK 0xfffff000
+#define ASID_FIRST_VERSION 0x1000
+
+/* PEVN --------- VPN ---------- --ASID--- -NA- */
+/* binary: 0000 0000 0000 0000 0000 0000 0001 0000 */
+/* binary: 0000 0000 0000 0000 0000 1111 1111 0000 */
+#define ASID_INC 0x10
+#define ASID_MASK 0xff0
+
+static inline void enter_lazy_tlb(struct mm_struct *mm,
+ struct task_struct *tsk)
+{}
+
+static inline void
+get_new_mmu_context(struct mm_struct *mm)
+{
+ unsigned long asid = asid_cache + ASID_INC;
+
+ if (!(asid & ASID_MASK)) {
+ local_flush_tlb_all(); /* start new asid cycle */
+ if (!asid) /* fix version if needed */
+ asid = ASID_FIRST_VERSION;
+ }
+
+ mm->context = asid;
+ asid_cache = asid;
+}
+
+/*
+ * Initialize the context related info for a new mm_struct
+ * instance.
+ */
+static inline int
+init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+ mm->context = 0;
+ return 0;
+}
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ if ((next->context ^ asid_cache) & ASID_VERSION_MASK)
+ get_new_mmu_context(next);
+
+ pevn_set(next->context);
+ TLBMISS_HANDLER_SETUP_PGD(next->pgd);
+ local_irq_restore(flags);
+}
+
+/*
+ * Destroy context related info for an mm_struct that is about
+ * to be put to rest.
+ */
+static inline void destroy_context(struct mm_struct *mm)
+{}
+
+static inline void
+deactivate_mm(struct task_struct *task, struct mm_struct *mm)
+{}
+
+/*
+ * After we have set current->mm to a new value, this activates
+ * the context for the new mm so we see the new mappings.
+ */
+static inline void
+activate_mm(struct mm_struct *prev, struct mm_struct *next)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ get_new_mmu_context(next);
+ pevn_set(next->context);
+ TLBMISS_HANDLER_SETUP_PGD(next->pgd);
+ local_irq_restore(flags);
+}
+
+#endif /* _ASM_SCORE_MMU_CONTEXT_H */
diff --git a/kernel/arch/score/include/asm/module.h b/kernel/arch/score/include/asm/module.h
new file mode 100644
index 000000000..abf395bbf
--- /dev/null
+++ b/kernel/arch/score/include/asm/module.h
@@ -0,0 +1,35 @@
+#ifndef _ASM_SCORE_MODULE_H
+#define _ASM_SCORE_MODULE_H
+
+#include <linux/list.h>
+#include <asm/uaccess.h>
+#include <asm-generic/module.h>
+
+struct mod_arch_specific {
+ /* Data Bus Error exception tables */
+ struct list_head dbe_list;
+ const struct exception_table_entry *dbe_start;
+ const struct exception_table_entry *dbe_end;
+};
+
+typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
+
+/* Given an address, look for it in the exception tables. */
+#ifdef CONFIG_MODULES
+const struct exception_table_entry *search_module_dbetables(unsigned long addr);
+#else
+static inline const struct exception_table_entry
+*search_module_dbetables(unsigned long addr)
+{
+ return NULL;
+}
+#endif
+
+#define MODULE_PROC_FAMILY "SCORE7"
+#define MODULE_KERNEL_TYPE "32BIT "
+#define MODULE_KERNEL_SMTC ""
+
+#define MODULE_ARCH_VERMAGIC \
+ MODULE_PROC_FAMILY MODULE_KERNEL_TYPE MODULE_KERNEL_SMTC
+
+#endif /* _ASM_SCORE_MODULE_H */
diff --git a/kernel/arch/score/include/asm/mutex.h b/kernel/arch/score/include/asm/mutex.h
new file mode 100644
index 000000000..10d48fe4d
--- /dev/null
+++ b/kernel/arch/score/include/asm/mutex.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_MUTEX_H
+#define _ASM_SCORE_MUTEX_H
+
+#include <asm-generic/mutex-dec.h>
+
+#endif /* _ASM_SCORE_MUTEX_H */
diff --git a/kernel/arch/score/include/asm/page.h b/kernel/arch/score/include/asm/page.h
new file mode 100644
index 000000000..1e9ade8e7
--- /dev/null
+++ b/kernel/arch/score/include/asm/page.h
@@ -0,0 +1,93 @@
+#ifndef _ASM_SCORE_PAGE_H
+#define _ASM_SCORE_PAGE_H
+
+#include <linux/pfn.h>
+#include <linux/const.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT (12)
+#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
+#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
+
+/* align addr on a size boundary - adjust address up/down if needed */
+#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1)))
+#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1)))
+
+/* align addr on a size boundary - adjust address up if needed */
+#define _ALIGN(addr, size) _ALIGN_UP(addr, size)
+
+/*
+ * PAGE_OFFSET -- the first address of the first page of memory. When not
+ * using MMU this corresponds to the first free page in physical memory (aligned
+ * on a page boundary).
+ */
+#define PAGE_OFFSET (0xA0000000UL)
+
+#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
+#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
+
+#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
+#define copy_user_page(vto, vfrom, vaddr, topg) \
+ memcpy((vto), (vfrom), PAGE_SIZE)
+
+/*
+ * These are used to make use of C type-checking..
+ */
+
+typedef struct { unsigned long pte; } pte_t; /* page table entry */
+typedef struct { unsigned long pgd; } pgd_t; /* PGD table entry */
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
+
+#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) })
+
+extern unsigned long max_low_pfn;
+extern unsigned long min_low_pfn;
+extern unsigned long max_pfn;
+
+#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
+#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
+
+#define phys_to_pfn(phys) (PFN_DOWN(phys))
+#define pfn_to_phys(pfn) (PFN_PHYS(pfn))
+
+#define virt_to_pfn(vaddr) (phys_to_pfn((__pa(vaddr))))
+#define pfn_to_virt(pfn) __va(pfn_to_phys((pfn)))
+
+#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
+#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page)))
+
+#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page)))
+#define page_to_bus(page) (page_to_phys(page))
+#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr)))
+
+#define pfn_valid(pfn) (((pfn) >= min_low_pfn) && ((pfn) < max_low_pfn))
+
+#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
+
+#endif /* __ASSEMBLY__ */
+
+#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr)))
+
+#endif /* __KERNEL__ */
+
+#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 /* _ASM_SCORE_PAGE_H */
diff --git a/kernel/arch/score/include/asm/pci.h b/kernel/arch/score/include/asm/pci.h
new file mode 100644
index 000000000..3f3cfd825
--- /dev/null
+++ b/kernel/arch/score/include/asm/pci.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SCORE_PCI_H
+#define _ASM_SCORE_PCI_H
+
+#endif /* _ASM_SCORE_PCI_H */
diff --git a/kernel/arch/score/include/asm/percpu.h b/kernel/arch/score/include/asm/percpu.h
new file mode 100644
index 000000000..e7bd4e05b
--- /dev/null
+++ b/kernel/arch/score/include/asm/percpu.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_PERCPU_H
+#define _ASM_SCORE_PERCPU_H
+
+#include <asm-generic/percpu.h>
+
+#endif /* _ASM_SCORE_PERCPU_H */
diff --git a/kernel/arch/score/include/asm/pgalloc.h b/kernel/arch/score/include/asm/pgalloc.h
new file mode 100644
index 000000000..2e067657d
--- /dev/null
+++ b/kernel/arch/score/include/asm/pgalloc.h
@@ -0,0 +1,86 @@
+#ifndef _ASM_SCORE_PGALLOC_H
+#define _ASM_SCORE_PGALLOC_H
+
+#include <linux/mm.h>
+#include <linux/highmem.h>
+static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
+ pte_t *pte)
+{
+ set_pmd(pmd, __pmd((unsigned long)pte));
+}
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+ pgtable_t pte)
+{
+ set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
+}
+
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+ pgd_t *ret, *init;
+
+ ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER);
+ if (ret) {
+ init = pgd_offset(&init_mm, 0UL);
+ pgd_init((unsigned long)ret);
+ memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
+ (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+ }
+
+ return ret;
+}
+
+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+ free_pages((unsigned long)pgd, PGD_ORDER);
+}
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+ unsigned long address)
+{
+ pte_t *pte;
+
+ pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO,
+ PTE_ORDER);
+
+ return pte;
+}
+
+static inline struct page *pte_alloc_one(struct mm_struct *mm,
+ unsigned long address)
+{
+ struct page *pte;
+
+ pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
+ if (!pte)
+ return NULL;
+ clear_highpage(pte);
+ 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_pages((unsigned long)pte, PTE_ORDER);
+}
+
+static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
+{
+ pgtable_page_dtor(pte);
+ __free_pages(pte, PTE_ORDER);
+}
+
+#define __pte_free_tlb(tlb, pte, buf) \
+do { \
+ pgtable_page_dtor(pte); \
+ tlb_remove_page((tlb), pte); \
+} while (0)
+
+#define check_pgt_cache() do {} while (0)
+
+#endif /* _ASM_SCORE_PGALLOC_H */
diff --git a/kernel/arch/score/include/asm/pgtable-bits.h b/kernel/arch/score/include/asm/pgtable-bits.h
new file mode 100644
index 000000000..0e5c6f466
--- /dev/null
+++ b/kernel/arch/score/include/asm/pgtable-bits.h
@@ -0,0 +1,24 @@
+#ifndef _ASM_SCORE_PGTABLE_BITS_H
+#define _ASM_SCORE_PGTABLE_BITS_H
+
+#define _PAGE_ACCESSED (1<<5) /* implemented in software */
+#define _PAGE_READ (1<<6) /* implemented in software */
+#define _PAGE_WRITE (1<<7) /* implemented in software */
+#define _PAGE_PRESENT (1<<9) /* implemented in software */
+#define _PAGE_MODIFIED (1<<10) /* implemented in software */
+
+#define _PAGE_GLOBAL (1<<0)
+#define _PAGE_VALID (1<<1)
+#define _PAGE_SILENT_READ (1<<1) /* synonym */
+#define _PAGE_DIRTY (1<<2) /* Write bit */
+#define _PAGE_SILENT_WRITE (1<<2)
+#define _PAGE_CACHE (1<<3) /* cache */
+#define _CACHE_MASK (1<<3)
+#define _PAGE_BUFFERABLE (1<<4) /*Fallow Spec. */
+
+#define __READABLE (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED)
+#define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED)
+#define _PAGE_CHG_MASK \
+ (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_CACHE)
+
+#endif /* _ASM_SCORE_PGTABLE_BITS_H */
diff --git a/kernel/arch/score/include/asm/pgtable.h b/kernel/arch/score/include/asm/pgtable.h
new file mode 100644
index 000000000..0553e5cd5
--- /dev/null
+++ b/kernel/arch/score/include/asm/pgtable.h
@@ -0,0 +1,268 @@
+#ifndef _ASM_SCORE_PGTABLE_H
+#define _ASM_SCORE_PGTABLE_H
+
+#include <linux/const.h>
+#include <asm-generic/pgtable-nopmd.h>
+
+#include <asm/fixmap.h>
+#include <asm/setup.h>
+#include <asm/pgtable-bits.h>
+
+extern void load_pgd(unsigned long pg_dir);
+extern pte_t invalid_pte_table[PAGE_SIZE/sizeof(pte_t)];
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+#define PGDIR_SHIFT 22
+#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
+#define PGDIR_MASK (~(PGDIR_SIZE - 1))
+
+/*
+ * Entries per page directory level: we use two-level, so
+ * we don't really have any PUD/PMD directory physically.
+ */
+#define PGD_ORDER 0
+#define PTE_ORDER 0
+
+#define PTRS_PER_PGD 1024
+#define PTRS_PER_PTE 1024
+
+#define USER_PTRS_PER_PGD (0x80000000UL/PGDIR_SIZE)
+#define FIRST_USER_ADDRESS 0UL
+
+#define VMALLOC_START (0xc0000000UL)
+
+#define PKMAP_BASE (0xfd000000UL)
+
+#define VMALLOC_END (FIXADDR_START - 2*PAGE_SIZE)
+
+#define pte_ERROR(e) \
+ printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \
+ __FILE__, __LINE__, pte_val(e))
+#define pgd_ERROR(e) \
+ printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \
+ __FILE__, __LINE__, pgd_val(e))
+
+/*
+ * Empty pgd/pmd entries point to the invalid_pte_table.
+ */
+static inline int pmd_none(pmd_t pmd)
+{
+ return pmd_val(pmd) == (unsigned long) invalid_pte_table;
+}
+
+#define pmd_bad(pmd) (pmd_val(pmd) & ~PAGE_MASK)
+
+static inline int pmd_present(pmd_t pmd)
+{
+ return pmd_val(pmd) != (unsigned long) invalid_pte_table;
+}
+
+static inline void pmd_clear(pmd_t *pmdp)
+{
+ pmd_val(*pmdp) = ((unsigned long) invalid_pte_table);
+}
+
+#define pte_page(x) pfn_to_page(pte_pfn(x))
+#define pte_pfn(x) ((unsigned long)((x).pte >> PAGE_SHIFT))
+#define pfn_pte(pfn, prot) \
+ __pte(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
+
+#define __pgd_offset(address) pgd_index(address)
+#define __pud_offset(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
+#define __pmd_offset(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+
+/* to find an entry in a page-table-directory */
+#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
+
+/* Find an entry in the third-level page table.. */
+#define __pte_offset(address) \
+ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define pte_offset(dir, address) \
+ ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
+#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) ((void)(pte))
+
+#define __pte_to_swp_entry(pte) \
+ ((swp_entry_t) { pte_val(pte)})
+#define __swp_entry_to_pte(x) ((pte_t) {(x).val})
+
+#define pmd_phys(pmd) __pa((void *)pmd_val(pmd))
+#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
+#define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot)
+static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
+
+#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
+#define pte_clear(mm, addr, xp) \
+ do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
+
+/*
+ * The "pgd_xxx()" functions here are trivial for a folded two-level
+ * setup: the pgd is never bad, and a pmd always exists (as it's folded
+ * into the pgd entry)
+ */
+#define pgd_present(pgd) (1)
+#define pgd_none(pgd) (0)
+#define pgd_bad(pgd) (0)
+#define pgd_clear(pgdp) do { } while (0)
+
+#define kern_addr_valid(addr) (1)
+#define pmd_page_vaddr(pmd) pmd_val(pmd)
+
+#define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL))
+#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
+
+#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_CACHE)
+#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
+ _PAGE_CACHE)
+#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHE)
+#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHE)
+#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
+ _PAGE_GLOBAL | _PAGE_CACHE)
+#define PAGE_KERNEL_UNCACHED __pgprot(_PAGE_PRESENT | __READABLE | \
+ __WRITEABLE | _PAGE_GLOBAL & ~_PAGE_CACHE)
+
+#define __P000 PAGE_NONE
+#define __P001 PAGE_READONLY
+#define __P010 PAGE_COPY
+#define __P011 PAGE_COPY
+#define __P100 PAGE_READONLY
+#define __P101 PAGE_READONLY
+#define __P110 PAGE_COPY
+#define __P111 PAGE_COPY
+
+#define __S000 PAGE_NONE
+#define __S001 PAGE_READONLY
+#define __S010 PAGE_SHARED
+#define __S011 PAGE_SHARED
+#define __S100 PAGE_READONLY
+#define __S101 PAGE_READONLY
+#define __S110 PAGE_SHARED
+#define __S111 PAGE_SHARED
+
+#define pgprot_noncached pgprot_noncached
+
+static inline pgprot_t pgprot_noncached(pgprot_t _prot)
+{
+ unsigned long prot = pgprot_val(_prot);
+
+ prot = (prot & ~_CACHE_MASK);
+
+ return __pgprot(prot);
+}
+
+#define __swp_type(x) ((x).val & 0x1f)
+#define __swp_offset(x) ((x).val >> 10)
+#define __swp_entry(type, offset) ((swp_entry_t){(type) | ((offset) << 10)})
+
+extern unsigned long empty_zero_page;
+extern unsigned long zero_page_mask;
+
+#define ZERO_PAGE(vaddr) \
+ (virt_to_page((void *)(empty_zero_page + \
+ (((unsigned long)(vaddr)) & zero_page_mask))))
+
+#define pgtable_cache_init() do {} while (0)
+
+#define arch_enter_lazy_cpu_mode() do {} while (0)
+
+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;
+}
+
+#define pte_special(pte) (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;
+ return pte;
+}
+
+#define set_pmd(pmdptr, pmdval) \
+ do { *(pmdptr) = (pmdval); } while (0)
+#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
+
+extern unsigned long pgd_current;
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+extern void paging_init(void);
+
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+ return __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot));
+}
+
+extern void __update_tlb(struct vm_area_struct *vma,
+ unsigned long address, pte_t pte);
+extern void __update_cache(struct vm_area_struct *vma,
+ unsigned long address, pte_t pte);
+
+static inline void update_mmu_cache(struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep)
+{
+ pte_t pte = *ptep;
+ __update_tlb(vma, address, pte);
+ __update_cache(vma, address, pte);
+}
+
+#ifndef __ASSEMBLY__
+#include <asm-generic/pgtable.h>
+
+void setup_memory(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_SCORE_PGTABLE_H */
diff --git a/kernel/arch/score/include/asm/processor.h b/kernel/arch/score/include/asm/processor.h
new file mode 100644
index 000000000..851f44199
--- /dev/null
+++ b/kernel/arch/score/include/asm/processor.h
@@ -0,0 +1,105 @@
+#ifndef _ASM_SCORE_PROCESSOR_H
+#define _ASM_SCORE_PROCESSOR_H
+
+#include <linux/cpumask.h>
+#include <linux/threads.h>
+
+#include <asm/segment.h>
+
+struct task_struct;
+
+/*
+ * System setup and hardware flags..
+ */
+extern void (*cpu_wait)(void);
+
+extern unsigned long thread_saved_pc(struct task_struct *tsk);
+extern void start_thread(struct pt_regs *regs,
+ unsigned long pc, unsigned long sp);
+extern unsigned long get_wchan(struct task_struct *p);
+
+/*
+ * Return current * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ __label__ _l; _l: &&_l; })
+
+#define cpu_relax() barrier()
+#define cpu_relax_lowlatency() cpu_relax()
+#define release_thread(thread) do {} while (0)
+
+/*
+ * User space process size: 2GB. This is hardcoded into a few places,
+ * so don't change it unless you know what you are doing.
+ */
+#define TASK_SIZE 0x7fff8000UL
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE ((TASK_SIZE / 3) & ~(PAGE_SIZE))
+
+#ifdef __KERNEL__
+#define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX TASK_SIZE
+#endif
+
+/*
+ * If you change thread_struct remember to change the #defines below too!
+ */
+struct thread_struct {
+ unsigned long reg0, reg2, reg3;
+ unsigned long reg12, reg13, reg14, reg15, reg16;
+ unsigned long reg17, reg18, reg19, reg20, reg21;
+
+ unsigned long cp0_psr;
+ unsigned long cp0_ema; /* Last user fault */
+ unsigned long cp0_badvaddr; /* Last user fault */
+ unsigned long cp0_baduaddr; /* Last kernel fault accessing USEG */
+ unsigned long error_code;
+ unsigned long trap_no;
+
+ unsigned long mflags;
+ unsigned long reg29;
+
+ unsigned long single_step;
+ unsigned long ss_nextcnt;
+
+ unsigned long insn1_type;
+ unsigned long addr1;
+ unsigned long insn1;
+
+ unsigned long insn2_type;
+ unsigned long addr2;
+ unsigned long insn2;
+
+ mm_segment_t current_ds;
+};
+
+#define INIT_THREAD { \
+ .reg0 = 0, \
+ .reg2 = 0, \
+ .reg3 = 0, \
+ .reg12 = 0, \
+ .reg13 = 0, \
+ .reg14 = 0, \
+ .reg15 = 0, \
+ .reg16 = 0, \
+ .reg17 = 0, \
+ .reg18 = 0, \
+ .reg19 = 0, \
+ .reg20 = 0, \
+ .reg21 = 0, \
+ .cp0_psr = 0, \
+ .error_code = 0, \
+ .trap_no = 0, \
+}
+
+#define kstk_tos(tsk) \
+ ((unsigned long)task_stack_page(tsk) + THREAD_SIZE - 32)
+#define task_pt_regs(tsk) ((struct pt_regs *)kstk_tos(tsk) - 1)
+
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc)
+#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29])
+
+#endif /* _ASM_SCORE_PROCESSOR_H */
diff --git a/kernel/arch/score/include/asm/ptrace.h b/kernel/arch/score/include/asm/ptrace.h
new file mode 100644
index 000000000..abc279d96
--- /dev/null
+++ b/kernel/arch/score/include/asm/ptrace.h
@@ -0,0 +1,25 @@
+#ifndef _ASM_SCORE_PTRACE_H
+#define _ASM_SCORE_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+struct task_struct;
+
+/*
+ * Does the process account for user or for system time?
+ */
+#define user_mode(regs) ((regs->cp0_psr & 8) == 8)
+
+#define instruction_pointer(regs) ((unsigned long)(regs)->cp0_epc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define user_stack_pointer(r) ((unsigned long)(r)->regs[0])
+
+extern void do_syscall_trace(struct pt_regs *regs, int entryexit);
+extern int read_tsk_long(struct task_struct *, unsigned long, unsigned long *);
+extern int read_tsk_short(struct task_struct *, unsigned long,
+ unsigned short *);
+
+#define arch_has_single_step() (1)
+
+#endif /* _ASM_SCORE_PTRACE_H */
diff --git a/kernel/arch/score/include/asm/scoreregs.h b/kernel/arch/score/include/asm/scoreregs.h
new file mode 100644
index 000000000..d0ad29204
--- /dev/null
+++ b/kernel/arch/score/include/asm/scoreregs.h
@@ -0,0 +1,51 @@
+#ifndef _ASM_SCORE_SCOREREGS_H
+#define _ASM_SCORE_SCOREREGS_H
+
+#include <linux/linkage.h>
+
+/* TIMER register */
+#define TIME0BASE 0x96080000
+#define P_TIMER0_CTRL (TIME0BASE + 0x00)
+#define P_TIMER0_CPP_CTRL (TIME0BASE + 0x04)
+#define P_TIMER0_PRELOAD (TIME0BASE + 0x08)
+#define P_TIMER0_CPP_REG (TIME0BASE + 0x0C)
+#define P_TIMER0_UPCNT (TIME0BASE + 0x10)
+
+/* Timer Controller Register */
+/* bit 0 Timer enable */
+#define TMR_DISABLE 0x0000
+#define TMR_ENABLE 0x0001
+
+/* bit 1 Interrupt enable */
+#define TMR_IE_DISABLE 0x0000
+#define TMR_IE_ENABLE 0x0002
+
+/* bit 2 Output enable */
+#define TMR_OE_DISABLE 0x0004
+#define TMR_OE_ENABLE 0x0000
+
+/* bit4 Up/Down counting selection */
+#define TMR_UD_DOWN 0x0000
+#define TMR_UD_UP 0x0010
+
+/* bit5 Up/Down counting control selection */
+#define TMR_UDS_UD 0x0000
+#define TMR_UDS_EXTUD 0x0020
+
+/* bit6 Time output mode */
+#define TMR_OM_TOGGLE 0x0000
+#define TMR_OM_PILSE 0x0040
+
+/* bit 8..9 External input active edge selection */
+#define TMR_ES_PE 0x0000
+#define TMR_ES_NE 0x0100
+#define TMR_ES_BOTH 0x0200
+
+/* bit 10..11 Operating mode */
+#define TMR_M_FREE 0x0000 /* free running timer mode */
+#define TMR_M_PERIODIC 0x0400 /* periodic timer mode */
+#define TMR_M_FC 0x0800 /* free running counter mode */
+#define TMR_M_PC 0x0c00 /* periodic counter mode */
+
+#define SYSTEM_CLOCK (27*1000000/4) /* 27 MHz */
+#endif /* _ASM_SCORE_SCOREREGS_H */
diff --git a/kernel/arch/score/include/asm/segment.h b/kernel/arch/score/include/asm/segment.h
new file mode 100644
index 000000000..e16cf6afb
--- /dev/null
+++ b/kernel/arch/score/include/asm/segment.h
@@ -0,0 +1,21 @@
+#ifndef _ASM_SCORE_SEGMENT_H
+#define _ASM_SCORE_SEGMENT_H
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+ unsigned long seg;
+} mm_segment_t;
+
+#define KERNEL_DS ((mm_segment_t){0})
+#define USER_DS KERNEL_DS
+
+# define get_ds() (KERNEL_DS)
+# define get_fs() (current_thread_info()->addr_limit)
+# define set_fs(x) \
+ do { current_thread_info()->addr_limit = (x); } while (0)
+
+# define segment_eq(a, b) ((a).seg == (b).seg)
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_SCORE_SEGMENT_H */
diff --git a/kernel/arch/score/include/asm/setup.h b/kernel/arch/score/include/asm/setup.h
new file mode 100644
index 000000000..1f3aa7262
--- /dev/null
+++ b/kernel/arch/score/include/asm/setup.h
@@ -0,0 +1,36 @@
+#ifndef _ASM_SCORE_SETUP_H
+#define _ASM_SCORE_SETUP_H
+
+#include <uapi/asm/setup.h>
+
+
+extern void pagetable_init(void);
+extern void pgd_init(unsigned long page);
+
+extern void setup_early_printk(void);
+extern void cpu_cache_init(void);
+extern void tlb_init(void);
+
+extern void handle_nmi(void);
+extern void handle_adelinsn(void);
+extern void handle_adedata(void);
+extern void handle_ibe(void);
+extern void handle_pel(void);
+extern void handle_sys(void);
+extern void handle_ccu(void);
+extern void handle_ri(void);
+extern void handle_tr(void);
+extern void handle_ades(void);
+extern void handle_cee(void);
+extern void handle_cpe(void);
+extern void handle_dve(void);
+extern void handle_dbe(void);
+extern void handle_reserved(void);
+extern void handle_tlb_refill(void);
+extern void handle_tlb_invaild(void);
+extern void handle_mod(void);
+extern void debug_exception_vector(void);
+extern void general_exception_vector(void);
+extern void interrupt_exception_vector(void);
+
+#endif /* _ASM_SCORE_SETUP_H */
diff --git a/kernel/arch/score/include/asm/shmparam.h b/kernel/arch/score/include/asm/shmparam.h
new file mode 100644
index 000000000..1d6081314
--- /dev/null
+++ b/kernel/arch/score/include/asm/shmparam.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SHMPARAM_H
+#define _ASM_SCORE_SHMPARAM_H
+
+#include <asm-generic/shmparam.h>
+
+#endif /* _ASM_SCORE_SHMPARAM_H */
diff --git a/kernel/arch/score/include/asm/string.h b/kernel/arch/score/include/asm/string.h
new file mode 100644
index 000000000..8a6bf5063
--- /dev/null
+++ b/kernel/arch/score/include/asm/string.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_SCORE_STRING_H
+#define _ASM_SCORE_STRING_H
+
+extern void *memset(void *__s, int __c, size_t __count);
+extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
+extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
+
+#endif /* _ASM_SCORE_STRING_H */
diff --git a/kernel/arch/score/include/asm/switch_to.h b/kernel/arch/score/include/asm/switch_to.h
new file mode 100644
index 000000000..031756b59
--- /dev/null
+++ b/kernel/arch/score/include/asm/switch_to.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_SCORE_SWITCH_TO_H
+#define _ASM_SCORE_SWITCH_TO_H
+
+extern void *resume(void *last, void *next, void *next_ti);
+
+#define switch_to(prev, next, last) \
+do { \
+ (last) = resume(prev, next, task_thread_info(next)); \
+} while (0)
+
+#define finish_arch_switch(prev) do {} while (0)
+
+#endif /* _ASM_SCORE_SWITCH_TO_H */
diff --git a/kernel/arch/score/include/asm/syscalls.h b/kernel/arch/score/include/asm/syscalls.h
new file mode 100644
index 000000000..98d1df92f
--- /dev/null
+++ b/kernel/arch/score/include/asm/syscalls.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_SCORE_SYSCALLS_H
+#define _ASM_SCORE_SYSCALLS_H
+
+asmlinkage long score_rt_sigreturn(struct pt_regs *regs);
+
+#include <asm-generic/syscalls.h>
+
+#endif /* _ASM_SCORE_SYSCALLS_H */
diff --git a/kernel/arch/score/include/asm/thread_info.h b/kernel/arch/score/include/asm/thread_info.h
new file mode 100644
index 000000000..7d9ffb15c
--- /dev/null
+++ b/kernel/arch/score/include/asm/thread_info.h
@@ -0,0 +1,92 @@
+#ifndef _ASM_SCORE_THREAD_INFO_H
+#define _ASM_SCORE_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#define KU_MASK 0x08
+#define KU_USER 0x08
+#define KU_KERN 0x00
+
+#include <asm/page.h>
+#include <linux/const.h>
+
+/* thread information allocation */
+#define THREAD_SIZE_ORDER (1)
+#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
+#define THREAD_MASK (THREAD_SIZE - _AC(1,UL))
+
+#ifndef __ASSEMBLY__
+
+#include <asm/processor.h>
+
+/*
+ * 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
+ */
+struct thread_info {
+ struct task_struct *task; /* main task structure */
+ unsigned long flags; /* low level flags */
+ unsigned long tp_value; /* thread pointer */
+ __u32 cpu; /* current CPU */
+
+ /* 0 => preemptable, < 0 => BUG */
+ int preempt_count;
+
+ /*
+ * thread address space:
+ * 0-0xBFFFFFFF for user-thead
+ * 0-0xFFFFFFFF for kernel-thread
+ */
+ mm_segment_t addr_limit;
+ struct pt_regs *regs;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ *
+ * preempt_count needs to be 1 initially, until the scheduler is functional.
+ */
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .cpu = 0, \
+ .preempt_count = 1, \
+ .addr_limit = KERNEL_DS, \
+}
+
+#define init_thread_info (init_thread_union.thread_info)
+#define init_stack (init_thread_union.stack)
+
+/* How to get the thread information struct from C. */
+register struct thread_info *__current_thread_info __asm__("r28");
+#define current_thread_info() __current_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_SIGPENDING 1 /* signal pending */
+#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
+#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
+#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
+#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
+
+#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+
+#define _TIF_WORK_MASK (0x0000ffff)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_SCORE_THREAD_INFO_H */
diff --git a/kernel/arch/score/include/asm/timex.h b/kernel/arch/score/include/asm/timex.h
new file mode 100644
index 000000000..a524ae0c5
--- /dev/null
+++ b/kernel/arch/score/include/asm/timex.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_SCORE_TIMEX_H
+#define _ASM_SCORE_TIMEX_H
+
+#define CLOCK_TICK_RATE 27000000 /* Timer input freq. */
+
+#include <asm-generic/timex.h>
+
+#endif /* _ASM_SCORE_TIMEX_H */
diff --git a/kernel/arch/score/include/asm/tlb.h b/kernel/arch/score/include/asm/tlb.h
new file mode 100644
index 000000000..46882ed52
--- /dev/null
+++ b/kernel/arch/score/include/asm/tlb.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_SCORE_TLB_H
+#define _ASM_SCORE_TLB_H
+
+/*
+ * SCORE doesn't need any special per-pte or per-vma handling, except
+ * we need to flush cache for area to be unmapped.
+ */
+#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)
+
+extern void score7_FTLB_refill_Handler(void);
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_SCORE_TLB_H */
diff --git a/kernel/arch/score/include/asm/tlbflush.h b/kernel/arch/score/include/asm/tlbflush.h
new file mode 100644
index 000000000..9cce97836
--- /dev/null
+++ b/kernel/arch/score/include/asm/tlbflush.h
@@ -0,0 +1,142 @@
+#ifndef _ASM_SCORE_TLBFLUSH_H
+#define _ASM_SCORE_TLBFLUSH_H
+
+#include <linux/mm.h>
+
+/*
+ * TLB flushing:
+ *
+ * - flush_tlb_all() flushes all processes TLB entries
+ * - flush_tlb_mm(mm) flushes the specified mm context TLB entries
+ * - flush_tlb_page(vma, vmaddr) flushes one page
+ * - flush_tlb_range(vma, start, end) flushes a range of pages
+ * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
+ */
+extern void local_flush_tlb_all(void);
+extern void local_flush_tlb_mm(struct mm_struct *mm);
+extern void local_flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+extern void local_flush_tlb_kernel_range(unsigned long start,
+ unsigned long end);
+extern void local_flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long page);
+extern void local_flush_tlb_one(unsigned long vaddr);
+
+#define flush_tlb_all() local_flush_tlb_all()
+#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
+#define flush_tlb_range(vma, vmaddr, end) \
+ local_flush_tlb_range(vma, vmaddr, end)
+#define flush_tlb_kernel_range(vmaddr, end) \
+ local_flush_tlb_kernel_range(vmaddr, end)
+#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
+#define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr)
+
+#ifndef __ASSEMBLY__
+
+static inline unsigned long pevn_get(void)
+{
+ unsigned long val;
+
+ __asm__ __volatile__(
+ "mfcr %0, cr11\n"
+ "nop\nnop\n"
+ : "=r" (val));
+
+ return val;
+}
+
+static inline void pevn_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr11\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline void pectx_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr12\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline unsigned long pectx_get(void)
+{
+ unsigned long val;
+ __asm__ __volatile__(
+ "mfcr %0, cr12\n"
+ "nop\nnop\n"
+ : "=r" (val));
+ return val;
+}
+static inline unsigned long tlblock_get(void)
+{
+ unsigned long val;
+
+ __asm__ __volatile__(
+ "mfcr %0, cr7\n"
+ "nop\nnop\n"
+ : "=r" (val));
+ return val;
+}
+static inline void tlblock_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr7\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline void tlbpt_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr8\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline long tlbpt_get(void)
+{
+ long val;
+
+ __asm__ __volatile__(
+ "mfcr %0, cr8\n"
+ "nop\nnop\n"
+ : "=r" (val));
+
+ return val;
+}
+
+static inline void peaddr_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr9\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+/* TLB operations. */
+static inline void tlb_probe(void)
+{
+ __asm__ __volatile__("stlb;nop;nop;nop;nop;nop");
+}
+
+static inline void tlb_read(void)
+{
+ __asm__ __volatile__("mftlb;nop;nop;nop;nop;nop");
+}
+
+static inline void tlb_write_indexed(void)
+{
+ __asm__ __volatile__("mtptlb;nop;nop;nop;nop;nop");
+}
+
+static inline void tlb_write_random(void)
+{
+ __asm__ __volatile__("mtrtlb;nop;nop;nop;nop;nop");
+}
+
+#endif /* Not __ASSEMBLY__ */
+
+#endif /* _ASM_SCORE_TLBFLUSH_H */
diff --git a/kernel/arch/score/include/asm/topology.h b/kernel/arch/score/include/asm/topology.h
new file mode 100644
index 000000000..425fba381
--- /dev/null
+++ b/kernel/arch/score/include/asm/topology.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TOPOLOGY_H
+#define _ASM_SCORE_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_SCORE_TOPOLOGY_H */
diff --git a/kernel/arch/score/include/asm/uaccess.h b/kernel/arch/score/include/asm/uaccess.h
new file mode 100644
index 000000000..20a359122
--- /dev/null
+++ b/kernel/arch/score/include/asm/uaccess.h
@@ -0,0 +1,429 @@
+#ifndef __SCORE_UACCESS_H
+#define __SCORE_UACCESS_H
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/thread_info.h>
+
+#define VERIFY_READ 0
+#define VERIFY_WRITE 1
+
+#define get_ds() (KERNEL_DS)
+#define get_fs() (current_thread_info()->addr_limit)
+#define segment_eq(a, b) ((a).seg == (b).seg)
+
+/*
+ * Is a address valid? This does a straighforward calculation rather
+ * than tests.
+ *
+ * Address valid if:
+ * - "addr" doesn't have any high-bits set
+ * - AND "size" doesn't have any high-bits set
+ * - AND "addr+size" doesn't have any high-bits set
+ * - OR we are in kernel mode.
+ *
+ * __ua_size() is a trick to avoid runtime checking of positive constant
+ * sizes; for those we already know at compile time that the size is ok.
+ */
+#define __ua_size(size) \
+ ((__builtin_constant_p(size) && (signed long) (size) > 0) ? 0 : (size))
+
+/*
+ * access_ok: - Checks if a user space pointer is valid
+ * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE. Note that
+ * %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
+ * to write to a block, it is always safe to read from it.
+ * @addr: User space pointer to start of block to check
+ * @size: Size of block to check
+ *
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
+ *
+ * Checks if a pointer to a block of memory in user space is valid.
+ *
+ * Returns true (nonzero) if the memory block may be valid, false (zero)
+ * if it is definitely invalid.
+ *
+ * Note that, depending on architecture, this function probably just
+ * checks that the pointer is in the user space range - after calling
+ * this function, memory access functions may still return -EFAULT.
+ */
+
+#define __access_ok(addr, size) \
+ (((long)((get_fs().seg) & \
+ ((addr) | ((addr) + (size)) | \
+ __ua_size(size)))) == 0)
+
+#define access_ok(type, addr, size) \
+ likely(__access_ok((unsigned long)(addr), (size)))
+
+/*
+ * put_user: - Write a simple value into user space.
+ * @x: Value to copy to user space.
+ * @ptr: Destination address, in user space.
+ *
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
+ *
+ * This macro copies a single simple value from kernel space to user
+ * space. It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
+ * to the result of dereferencing @ptr.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ */
+#define put_user(x, ptr) __put_user_check((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * get_user: - Get a simple variable from user space.
+ * @x: Variable to store result.
+ * @ptr: Source address, in user space.
+ *
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
+ *
+ * This macro copies a single simple variable from user space to kernel
+ * space. It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and the result of
+ * dereferencing @ptr must be assignable to @x without a cast.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ * On error, the variable @x is set to zero.
+ */
+#define get_user(x, ptr) __get_user_check((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * __put_user: - Write a simple value into user space, with less checking.
+ * @x: Value to copy to user space.
+ * @ptr: Destination address, in user space.
+ *
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
+ *
+ * This macro copies a single simple value from kernel space to user
+ * space. It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
+ * to the result of dereferencing @ptr.
+ *
+ * Caller must check the pointer with access_ok() before calling this
+ * function.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ */
+#define __put_user(x, ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * __get_user: - Get a simple variable from user space, with less checking.
+ * @x: Variable to store result.
+ * @ptr: Source address, in user space.
+ *
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
+ *
+ * This macro copies a single simple variable from user space to kernel
+ * space. It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and the result of
+ * dereferencing @ptr must be assignable to @x without a cast.
+ *
+ * Caller must check the pointer with access_ok() before calling this
+ * function.
+ *
+ * Returns zero on success, or -EFAULT on error.
+ * On error, the variable @x is set to zero.
+ */
+#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct __user *)(x))
+
+/*
+ * Yuck. We need two variants, one for 64bit operation and one
+ * for 32 bit mode and old iron.
+ */
+extern void __get_user_unknown(void);
+
+#define __get_user_common(val, size, ptr) \
+do { \
+ switch (size) { \
+ case 1: \
+ __get_user_asm(val, "lb", ptr); \
+ break; \
+ case 2: \
+ __get_user_asm(val, "lh", ptr); \
+ break; \
+ case 4: \
+ __get_user_asm(val, "lw", ptr); \
+ break; \
+ case 8: \
+ if ((copy_from_user((void *)&val, ptr, 8)) == 0) \
+ __gu_err = 0; \
+ else \
+ __gu_err = -EFAULT; \
+ break; \
+ default: \
+ __get_user_unknown(); \
+ break; \
+ } \
+} while (0)
+
+#define __get_user_nocheck(x, ptr, size) \
+({ \
+ long __gu_err = 0; \
+ __get_user_common((x), size, ptr); \
+ __gu_err; \
+})
+
+#define __get_user_check(x, ptr, size) \
+({ \
+ long __gu_err = -EFAULT; \
+ const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \
+ \
+ if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \
+ __get_user_common((x), size, __gu_ptr); \
+ \
+ __gu_err; \
+})
+
+#define __get_user_asm(val, insn, addr) \
+{ \
+ long __gu_tmp; \
+ \
+ __asm__ __volatile__( \
+ "1:" insn " %1, %3\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:li %0, %4\n" \
+ "j 2b\n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n" \
+ ".word 1b, 3b\n" \
+ ".previous\n" \
+ : "=r" (__gu_err), "=r" (__gu_tmp) \
+ : "0" (0), "o" (__m(addr)), "i" (-EFAULT)); \
+ \
+ (val) = (__typeof__(*(addr))) __gu_tmp; \
+}
+
+/*
+ * Yuck. We need two variants, one for 64bit operation and one
+ * for 32 bit mode and old iron.
+ */
+#define __put_user_nocheck(val, ptr, size) \
+({ \
+ __typeof__(*(ptr)) __pu_val; \
+ long __pu_err = 0; \
+ \
+ __pu_val = (val); \
+ switch (size) { \
+ case 1: \
+ __put_user_asm("sb", ptr); \
+ break; \
+ case 2: \
+ __put_user_asm("sh", ptr); \
+ break; \
+ case 4: \
+ __put_user_asm("sw", ptr); \
+ break; \
+ case 8: \
+ if ((__copy_to_user((void *)ptr, &__pu_val, 8)) == 0) \
+ __pu_err = 0; \
+ else \
+ __pu_err = -EFAULT; \
+ break; \
+ default: \
+ __put_user_unknown(); \
+ break; \
+ } \
+ __pu_err; \
+})
+
+
+#define __put_user_check(val, ptr, size) \
+({ \
+ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
+ __typeof__(*(ptr)) __pu_val = (val); \
+ long __pu_err = -EFAULT; \
+ \
+ if (likely(access_ok(VERIFY_WRITE, __pu_addr, size))) { \
+ switch (size) { \
+ case 1: \
+ __put_user_asm("sb", __pu_addr); \
+ break; \
+ case 2: \
+ __put_user_asm("sh", __pu_addr); \
+ break; \
+ case 4: \
+ __put_user_asm("sw", __pu_addr); \
+ break; \
+ case 8: \
+ if ((__copy_to_user((void *)__pu_addr, &__pu_val, 8)) == 0)\
+ __pu_err = 0; \
+ else \
+ __pu_err = -EFAULT; \
+ break; \
+ default: \
+ __put_user_unknown(); \
+ break; \
+ } \
+ } \
+ __pu_err; \
+})
+
+#define __put_user_asm(insn, ptr) \
+ __asm__ __volatile__( \
+ "1:" insn " %2, %3\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3:li %0, %4\n" \
+ "j 2b\n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n" \
+ ".word 1b, 3b\n" \
+ ".previous\n" \
+ : "=r" (__pu_err) \
+ : "0" (0), "r" (__pu_val), "o" (__m(ptr)), \
+ "i" (-EFAULT));
+
+extern void __put_user_unknown(void);
+extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
+
+static inline unsigned long
+copy_from_user(void *to, const void *from, unsigned long len)
+{
+ unsigned long over;
+
+ if (access_ok(VERIFY_READ, from, len))
+ return __copy_tofrom_user(to, from, len);
+
+ if ((unsigned long)from < TASK_SIZE) {
+ over = (unsigned long)from + len - TASK_SIZE;
+ return __copy_tofrom_user(to, from, len - over) + over;
+ }
+ return len;
+}
+
+static inline unsigned long
+copy_to_user(void *to, const void *from, unsigned long len)
+{
+ unsigned long over;
+
+ if (access_ok(VERIFY_WRITE, to, len))
+ return __copy_tofrom_user(to, from, len);
+
+ if ((unsigned long)to < TASK_SIZE) {
+ over = (unsigned long)to + len - TASK_SIZE;
+ return __copy_tofrom_user(to, from, len - over) + over;
+ }
+ return len;
+}
+
+#define __copy_from_user(to, from, len) \
+ __copy_tofrom_user((to), (from), (len))
+
+#define __copy_to_user(to, from, len) \
+ __copy_tofrom_user((to), (from), (len))
+
+static inline unsigned long
+__copy_to_user_inatomic(void *to, const void *from, unsigned long len)
+{
+ return __copy_to_user(to, from, len);
+}
+
+static inline unsigned long
+__copy_from_user_inatomic(void *to, const void *from, unsigned long len)
+{
+ return __copy_from_user(to, from, len);
+}
+
+#define __copy_in_user(to, from, len) __copy_from_user(to, from, len)
+
+static inline unsigned long
+copy_in_user(void *to, const void *from, unsigned long len)
+{
+ if (access_ok(VERIFY_READ, from, len) &&
+ access_ok(VERFITY_WRITE, to, len))
+ return copy_from_user(to, from, len);
+}
+
+/*
+ * __clear_user: - Zero a block of memory in user space, with less checking.
+ * @to: Destination address, in user space.
+ * @n: Number of bytes to zero.
+ *
+ * Zero a block of memory in user space. Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+extern unsigned long __clear_user(void __user *src, unsigned long size);
+
+static inline unsigned long clear_user(char *src, unsigned long size)
+{
+ if (access_ok(VERIFY_WRITE, src, size))
+ return __clear_user(src, size);
+
+ return -EFAULT;
+}
+/*
+ * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
+ * @dst: Destination address, in kernel space. This buffer must be at
+ * least @count bytes long.
+ * @src: Source address, in user space.
+ * @count: Maximum number of bytes to copy, including the trailing NUL.
+ *
+ * Copies a NUL-terminated string from userspace to kernel space.
+ * Caller must check the specified block with access_ok() before calling
+ * this function.
+ *
+ * On success, returns the length of the string (not including the trailing
+ * NUL).
+ *
+ * If access to userspace fails, returns -EFAULT (some data may have been
+ * copied).
+ *
+ * If @count is smaller than the length of the string, copies @count bytes
+ * and returns @count.
+ */
+extern int __strncpy_from_user(char *dst, const char *src, long len);
+
+static inline int strncpy_from_user(char *dst, const char *src, long len)
+{
+ if (access_ok(VERIFY_READ, src, 1))
+ return __strncpy_from_user(dst, src, len);
+
+ return -EFAULT;
+}
+
+extern int __strlen_user(const char *src);
+static inline long strlen_user(const char __user *src)
+{
+ return __strlen_user(src);
+}
+
+extern int __strnlen_user(const char *str, long len);
+static inline long strnlen_user(const char __user *str, long len)
+{
+ if (!access_ok(VERIFY_READ, str, 0))
+ return 0;
+ else
+ return __strnlen_user(str, len);
+}
+
+struct exception_table_entry {
+ unsigned long insn;
+ unsigned long fixup;
+};
+
+extern int fixup_exception(struct pt_regs *regs);
+
+#endif /* __SCORE_UACCESS_H */
+
diff --git a/kernel/arch/score/include/asm/ucontext.h b/kernel/arch/score/include/asm/ucontext.h
new file mode 100644
index 000000000..9bc07b9f3
--- /dev/null
+++ b/kernel/arch/score/include/asm/ucontext.h
@@ -0,0 +1 @@
+#include <asm-generic/ucontext.h>
diff --git a/kernel/arch/score/include/asm/unaligned.h b/kernel/arch/score/include/asm/unaligned.h
new file mode 100644
index 000000000..2fc06de51
--- /dev/null
+++ b/kernel/arch/score/include/asm/unaligned.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_UNALIGNED_H
+#define _ASM_SCORE_UNALIGNED_H
+
+#include <asm-generic/unaligned.h>
+
+#endif /* _ASM_SCORE_UNALIGNED_H */
diff --git a/kernel/arch/score/include/asm/user.h b/kernel/arch/score/include/asm/user.h
new file mode 100644
index 000000000..7bfb8e2c8
--- /dev/null
+++ b/kernel/arch/score/include/asm/user.h
@@ -0,0 +1,21 @@
+#ifndef _ASM_SCORE_USER_H
+#define _ASM_SCORE_USER_H
+
+struct user_regs_struct {
+ unsigned long regs[32];
+
+ unsigned long cel;
+ unsigned long ceh;
+
+ unsigned long sr0; /* cnt */
+ unsigned long sr1; /* lcr */
+ unsigned long sr2; /* scr */
+
+ unsigned long cp0_epc;
+ unsigned long cp0_ema;
+ unsigned long cp0_psr;
+ unsigned long cp0_ecr;
+ unsigned long cp0_condition;
+};
+
+#endif /* _ASM_SCORE_USER_H */
diff --git a/kernel/arch/score/include/uapi/asm/Kbuild b/kernel/arch/score/include/uapi/asm/Kbuild
new file mode 100644
index 000000000..040178cdb
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/Kbuild
@@ -0,0 +1,34 @@
+# UAPI Header export list
+include include/uapi/asm-generic/Kbuild.asm
+
+header-y += auxvec.h
+header-y += bitsperlong.h
+header-y += byteorder.h
+header-y += errno.h
+header-y += fcntl.h
+header-y += ioctl.h
+header-y += ioctls.h
+header-y += ipcbuf.h
+header-y += kvm_para.h
+header-y += mman.h
+header-y += msgbuf.h
+header-y += param.h
+header-y += poll.h
+header-y += posix_types.h
+header-y += ptrace.h
+header-y += resource.h
+header-y += sembuf.h
+header-y += setup.h
+header-y += shmbuf.h
+header-y += sigcontext.h
+header-y += siginfo.h
+header-y += signal.h
+header-y += socket.h
+header-y += sockios.h
+header-y += stat.h
+header-y += statfs.h
+header-y += swab.h
+header-y += termbits.h
+header-y += termios.h
+header-y += types.h
+header-y += unistd.h
diff --git a/kernel/arch/score/include/uapi/asm/auxvec.h b/kernel/arch/score/include/uapi/asm/auxvec.h
new file mode 100644
index 000000000..f69151565
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/auxvec.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SCORE_AUXVEC_H
+#define _ASM_SCORE_AUXVEC_H
+
+#endif /* _ASM_SCORE_AUXVEC_H */
diff --git a/kernel/arch/score/include/uapi/asm/bitsperlong.h b/kernel/arch/score/include/uapi/asm/bitsperlong.h
new file mode 100644
index 000000000..86ff337aa
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/bitsperlong.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_BITSPERLONG_H
+#define _ASM_SCORE_BITSPERLONG_H
+
+#include <asm-generic/bitsperlong.h>
+
+#endif /* _ASM_SCORE_BITSPERLONG_H */
diff --git a/kernel/arch/score/include/uapi/asm/byteorder.h b/kernel/arch/score/include/uapi/asm/byteorder.h
new file mode 100644
index 000000000..88cbebc79
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/byteorder.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_BYTEORDER_H
+#define _ASM_SCORE_BYTEORDER_H
+
+#include <linux/byteorder/little_endian.h>
+
+#endif /* _ASM_SCORE_BYTEORDER_H */
diff --git a/kernel/arch/score/include/uapi/asm/errno.h b/kernel/arch/score/include/uapi/asm/errno.h
new file mode 100644
index 000000000..29ff39d5a
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/errno.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_ERRNO_H
+#define _ASM_SCORE_ERRNO_H
+
+#include <asm-generic/errno.h>
+
+#endif /* _ASM_SCORE_ERRNO_H */
diff --git a/kernel/arch/score/include/uapi/asm/fcntl.h b/kernel/arch/score/include/uapi/asm/fcntl.h
new file mode 100644
index 000000000..03968a310
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/fcntl.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_FCNTL_H
+#define _ASM_SCORE_FCNTL_H
+
+#include <asm-generic/fcntl.h>
+
+#endif /* _ASM_SCORE_FCNTL_H */
diff --git a/kernel/arch/score/include/uapi/asm/ioctl.h b/kernel/arch/score/include/uapi/asm/ioctl.h
new file mode 100644
index 000000000..a351d2194
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/ioctl.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_IOCTL_H
+#define _ASM_SCORE_IOCTL_H
+
+#include <asm-generic/ioctl.h>
+
+#endif /* _ASM_SCORE_IOCTL_H */
diff --git a/kernel/arch/score/include/uapi/asm/ioctls.h b/kernel/arch/score/include/uapi/asm/ioctls.h
new file mode 100644
index 000000000..ed01d2b9a
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/ioctls.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_IOCTLS_H
+#define _ASM_SCORE_IOCTLS_H
+
+#include <asm-generic/ioctls.h>
+
+#endif /* _ASM_SCORE_IOCTLS_H */
diff --git a/kernel/arch/score/include/uapi/asm/ipcbuf.h b/kernel/arch/score/include/uapi/asm/ipcbuf.h
new file mode 100644
index 000000000..e082ceff1
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/ipcbuf.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_IPCBUF_H
+#define _ASM_SCORE_IPCBUF_H
+
+#include <asm-generic/ipcbuf.h>
+
+#endif /* _ASM_SCORE_IPCBUF_H */
diff --git a/kernel/arch/score/include/uapi/asm/kvm_para.h b/kernel/arch/score/include/uapi/asm/kvm_para.h
new file mode 100644
index 000000000..14fab8f0b
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/kvm_para.h
@@ -0,0 +1 @@
+#include <asm-generic/kvm_para.h>
diff --git a/kernel/arch/score/include/uapi/asm/mman.h b/kernel/arch/score/include/uapi/asm/mman.h
new file mode 100644
index 000000000..84d85ddfe
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/mman.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_MMAN_H
+#define _ASM_SCORE_MMAN_H
+
+#include <asm-generic/mman.h>
+
+#endif /* _ASM_SCORE_MMAN_H */
diff --git a/kernel/arch/score/include/uapi/asm/msgbuf.h b/kernel/arch/score/include/uapi/asm/msgbuf.h
new file mode 100644
index 000000000..7506721e2
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/msgbuf.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_MSGBUF_H
+#define _ASM_SCORE_MSGBUF_H
+
+#include <asm-generic/msgbuf.h>
+
+#endif /* _ASM_SCORE_MSGBUF_H */
diff --git a/kernel/arch/score/include/uapi/asm/param.h b/kernel/arch/score/include/uapi/asm/param.h
new file mode 100644
index 000000000..916b8690b
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/param.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_PARAM_H
+#define _ASM_SCORE_PARAM_H
+
+#include <asm-generic/param.h>
+
+#endif /* _ASM_SCORE_PARAM_H */
diff --git a/kernel/arch/score/include/uapi/asm/poll.h b/kernel/arch/score/include/uapi/asm/poll.h
new file mode 100644
index 000000000..18532db02
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/poll.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_POLL_H
+#define _ASM_SCORE_POLL_H
+
+#include <asm-generic/poll.h>
+
+#endif /* _ASM_SCORE_POLL_H */
diff --git a/kernel/arch/score/include/uapi/asm/posix_types.h b/kernel/arch/score/include/uapi/asm/posix_types.h
new file mode 100644
index 000000000..b88acf800
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/posix_types.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_POSIX_TYPES_H
+#define _ASM_SCORE_POSIX_TYPES_H
+
+#include <asm-generic/posix_types.h>
+
+#endif /* _ASM_SCORE_POSIX_TYPES_H */
diff --git a/kernel/arch/score/include/uapi/asm/ptrace.h b/kernel/arch/score/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000..5c5e79405
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/ptrace.h
@@ -0,0 +1,65 @@
+#ifndef _UAPI_ASM_SCORE_PTRACE_H
+#define _UAPI_ASM_SCORE_PTRACE_H
+
+#define PTRACE_GETREGS 12
+#define PTRACE_SETREGS 13
+
+#define SINGLESTEP16_INSN 0x7006
+#define SINGLESTEP32_INSN 0x840C8000
+#define BREAKPOINT16_INSN 0x7002 /* work on SPG300 */
+#define BREAKPOINT32_INSN 0x84048000 /* work on SPG300 */
+
+/* Define instruction mask */
+#define INSN32_MASK 0x80008000
+
+#define J32 0x88008000 /* 1_00010_0000000000_1_000000000000000 */
+#define J32M 0xFC008000 /* 1_11111_0000000000_1_000000000000000 */
+
+#define B32 0x90008000 /* 1_00100_0000000000_1_000000000000000 */
+#define B32M 0xFC008000
+#define BL32 0x90008001 /* 1_00100_0000000000_1_000000000000001 */
+#define BL32M B32
+#define BR32 0x80008008 /* 1_00000_0000000000_1_00000000_000100_0 */
+#define BR32M 0xFFE0807E
+#define BRL32 0x80008009 /* 1_00000_0000000000_1_00000000_000100_1 */
+#define BRL32M BR32M
+
+#define B32_SET (J32 | B32 | BL32 | BR32 | BRL32)
+
+#define J16 0x3000 /* 0_011_....... */
+#define J16M 0xF000
+#define B16 0x4000 /* 0_100_....... */
+#define B16M 0xF000
+#define BR16 0x0004 /* 0_000.......0100 */
+#define BR16M 0xF00F
+#define B16_SET (J16 | B16 | BR16)
+
+
+/*
+ * This struct defines the way the registers are stored on the stack during a
+ * system call/exception. As usual the registers k0/k1 aren't being saved.
+ */
+struct pt_regs {
+ unsigned long pad0[6]; /* stack arguments */
+ unsigned long orig_r4;
+ unsigned long orig_r7;
+ long is_syscall;
+
+ unsigned long regs[32];
+
+ unsigned long cel;
+ unsigned long ceh;
+
+ unsigned long sr0; /* cnt */
+ unsigned long sr1; /* lcr */
+ unsigned long sr2; /* scr */
+
+ unsigned long cp0_epc;
+ unsigned long cp0_ema;
+ unsigned long cp0_psr;
+ unsigned long cp0_ecr;
+ unsigned long cp0_condition;
+};
+
+
+#endif /* _UAPI_ASM_SCORE_PTRACE_H */
diff --git a/kernel/arch/score/include/uapi/asm/resource.h b/kernel/arch/score/include/uapi/asm/resource.h
new file mode 100644
index 000000000..9ce22bc7b
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/resource.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_RESOURCE_H
+#define _ASM_SCORE_RESOURCE_H
+
+#include <asm-generic/resource.h>
+
+#endif /* _ASM_SCORE_RESOURCE_H */
diff --git a/kernel/arch/score/include/uapi/asm/sembuf.h b/kernel/arch/score/include/uapi/asm/sembuf.h
new file mode 100644
index 000000000..dae5e835c
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/sembuf.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SEMBUF_H
+#define _ASM_SCORE_SEMBUF_H
+
+#include <asm-generic/sembuf.h>
+
+#endif /* _ASM_SCORE_SEMBUF_H */
diff --git a/kernel/arch/score/include/uapi/asm/setup.h b/kernel/arch/score/include/uapi/asm/setup.h
new file mode 100644
index 000000000..ab9dbdb59
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/setup.h
@@ -0,0 +1,9 @@
+#ifndef _UAPI_ASM_SCORE_SETUP_H
+#define _UAPI_ASM_SCORE_SETUP_H
+
+#define COMMAND_LINE_SIZE 256
+#define MEMORY_START 0
+#define MEMORY_SIZE 0x2000000
+
+
+#endif /* _UAPI_ASM_SCORE_SETUP_H */
diff --git a/kernel/arch/score/include/uapi/asm/shmbuf.h b/kernel/arch/score/include/uapi/asm/shmbuf.h
new file mode 100644
index 000000000..c85b2429b
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/shmbuf.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SHMBUF_H
+#define _ASM_SCORE_SHMBUF_H
+
+#include <asm-generic/shmbuf.h>
+
+#endif /* _ASM_SCORE_SHMBUF_H */
diff --git a/kernel/arch/score/include/uapi/asm/sigcontext.h b/kernel/arch/score/include/uapi/asm/sigcontext.h
new file mode 100644
index 000000000..5ffda39dd
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/sigcontext.h
@@ -0,0 +1,22 @@
+#ifndef _ASM_SCORE_SIGCONTEXT_H
+#define _ASM_SCORE_SIGCONTEXT_H
+
+/*
+ * Keep this struct definition in sync with the sigcontext fragment
+ * in arch/score/tools/offset.c
+ */
+struct sigcontext {
+ unsigned int sc_regmask;
+ unsigned int sc_psr;
+ unsigned int sc_condition;
+ unsigned long sc_pc;
+ unsigned long sc_regs[32];
+ unsigned int sc_ssflags;
+ unsigned int sc_mdceh;
+ unsigned int sc_mdcel;
+ unsigned int sc_ecr;
+ unsigned long sc_ema;
+ unsigned long sc_sigset[4];
+};
+
+#endif /* _ASM_SCORE_SIGCONTEXT_H */
diff --git a/kernel/arch/score/include/uapi/asm/siginfo.h b/kernel/arch/score/include/uapi/asm/siginfo.h
new file mode 100644
index 000000000..87ca35607
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/siginfo.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SIGINFO_H
+#define _ASM_SCORE_SIGINFO_H
+
+#include <asm-generic/siginfo.h>
+
+#endif /* _ASM_SCORE_SIGINFO_H */
diff --git a/kernel/arch/score/include/uapi/asm/signal.h b/kernel/arch/score/include/uapi/asm/signal.h
new file mode 100644
index 000000000..2605bc06b
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/signal.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SIGNAL_H
+#define _ASM_SCORE_SIGNAL_H
+
+#include <asm-generic/signal.h>
+
+#endif /* _ASM_SCORE_SIGNAL_H */
diff --git a/kernel/arch/score/include/uapi/asm/socket.h b/kernel/arch/score/include/uapi/asm/socket.h
new file mode 100644
index 000000000..612a70e38
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/socket.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SOCKET_H
+#define _ASM_SCORE_SOCKET_H
+
+#include <asm-generic/socket.h>
+
+#endif /* _ASM_SCORE_SOCKET_H */
diff --git a/kernel/arch/score/include/uapi/asm/sockios.h b/kernel/arch/score/include/uapi/asm/sockios.h
new file mode 100644
index 000000000..ba8256480
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/sockios.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SOCKIOS_H
+#define _ASM_SCORE_SOCKIOS_H
+
+#include <asm-generic/sockios.h>
+
+#endif /* _ASM_SCORE_SOCKIOS_H */
diff --git a/kernel/arch/score/include/uapi/asm/stat.h b/kernel/arch/score/include/uapi/asm/stat.h
new file mode 100644
index 000000000..503705550
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/stat.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_STAT_H
+#define _ASM_SCORE_STAT_H
+
+#include <asm-generic/stat.h>
+
+#endif /* _ASM_SCORE_STAT_H */
diff --git a/kernel/arch/score/include/uapi/asm/statfs.h b/kernel/arch/score/include/uapi/asm/statfs.h
new file mode 100644
index 000000000..36e41004e
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/statfs.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_STATFS_H
+#define _ASM_SCORE_STATFS_H
+
+#include <asm-generic/statfs.h>
+
+#endif /* _ASM_SCORE_STATFS_H */
diff --git a/kernel/arch/score/include/uapi/asm/swab.h b/kernel/arch/score/include/uapi/asm/swab.h
new file mode 100644
index 000000000..fadc3cc6d
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/swab.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_SWAB_H
+#define _ASM_SCORE_SWAB_H
+
+#include <asm-generic/swab.h>
+
+#endif /* _ASM_SCORE_SWAB_H */
diff --git a/kernel/arch/score/include/uapi/asm/termbits.h b/kernel/arch/score/include/uapi/asm/termbits.h
new file mode 100644
index 000000000..9a95c1412
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/termbits.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TERMBITS_H
+#define _ASM_SCORE_TERMBITS_H
+
+#include <asm-generic/termbits.h>
+
+#endif /* _ASM_SCORE_TERMBITS_H */
diff --git a/kernel/arch/score/include/uapi/asm/termios.h b/kernel/arch/score/include/uapi/asm/termios.h
new file mode 100644
index 000000000..40984e811
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/termios.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TERMIOS_H
+#define _ASM_SCORE_TERMIOS_H
+
+#include <asm-generic/termios.h>
+
+#endif /* _ASM_SCORE_TERMIOS_H */
diff --git a/kernel/arch/score/include/uapi/asm/types.h b/kernel/arch/score/include/uapi/asm/types.h
new file mode 100644
index 000000000..214003277
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/types.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TYPES_H
+#define _ASM_SCORE_TYPES_H
+
+#include <asm-generic/types.h>
+
+#endif /* _ASM_SCORE_TYPES_H */
diff --git a/kernel/arch/score/include/uapi/asm/unistd.h b/kernel/arch/score/include/uapi/asm/unistd.h
new file mode 100644
index 000000000..9cb4260a5
--- /dev/null
+++ b/kernel/arch/score/include/uapi/asm/unistd.h
@@ -0,0 +1,11 @@
+#define __ARCH_HAVE_MMU
+
+#define __ARCH_WANT_SYSCALL_NO_AT
+#define __ARCH_WANT_SYSCALL_NO_FLAGS
+#define __ARCH_WANT_SYSCALL_OFF_T
+#define __ARCH_WANT_SYSCALL_DEPRECATED
+#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
+
+#include <asm-generic/unistd.h>