[PATCH] FRV: Remaining Fujitsu FR-V arch include files

The attached patch provides the remaining arch-specific include files for
the Fujitsu FR-V CPU arch.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-frv/unaligned.h

+/* unaligned.h: unaligned access handler
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_UNALIGNED_H
+#define _ASM_UNALIGNED_H
+
+#include <linux/config.h>
+
+/*
+ * Unaligned accesses on uClinux can't be performed in a fault handler - the
+ * CPU detects them as imprecise exceptions making this impossible.
+ *
+ * With the FR451, however, they are precise, and so we used to fix them up in
+ * the memory access fault handler.  However, instruction bundling make this
+ * impractical.  So, now we fall back to using memcpy.
+ */
+#ifdef CONFIG_MMU
+
+/*
+ * The asm statement in the macros below is a way to get GCC to copy a
+ * value from one variable to another without having any clue it's
+ * actually doing so, so that it won't have any idea that the values
+ * in the two variables are related.
+ */
+
+#define get_unaligned(ptr) ({				\
+	typeof((*(ptr))) __x;				\
+	void *__ptrcopy;				\
+	asm("" : "=r" (__ptrcopy) : "0" (ptr));		\
+	memcpy(&__x, __ptrcopy, sizeof(*(ptr)));	\
+	__x;						\
+})
+
+#define put_unaligned(val, ptr) ({			\
+	typeof((*(ptr))) __x = (val);			\
+	void *__ptrcopy;				\
+	asm("" : "=r" (__ptrcopy) : "0" (ptr));		\
+	memcpy(__ptrcopy, &__x, sizeof(*(ptr)));	\
+})
+
+extern int handle_misalignment(unsigned long esr0, unsigned long ear0, unsigned long epcr0);
+
+#else
+
+#define get_unaligned(ptr)							\
+({										\
+	typeof(*(ptr)) x;							\
+	const char *__p = (const char *) (ptr);					\
+										\
+	switch (sizeof(x)) {							\
+	case 1:									\
+		x = *(ptr);							\
+		break;								\
+	case 2:									\
+	{									\
+		uint8_t a;							\
+		asm("	ldub%I2		%M2,%0		\n"			\
+		    "	ldub%I3.p	%M3,%1		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%1,%0	\n"			\
+		    : "=&r"(x), "=&r"(a)					\
+		    : "m"(__p[0]),  "m"(__p[1])					\
+		    );								\
+		break;								\
+	}									\
+										\
+	case 4:									\
+	{									\
+		uint8_t a;							\
+		asm("	ldub%I2		%M2,%0		\n"			\
+		    "	ldub%I3.p	%M3,%1		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%1,%0	\n"			\
+		    "	ldub%I4.p	%M4,%1		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%1,%0	\n"			\
+		    "	ldub%I5.p	%M5,%1		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%1,%0	\n"			\
+		    : "=&r"(x), "=&r"(a)					\
+		    : "m"(__p[0]),  "m"(__p[1]), "m"(__p[2]), "m"(__p[3])	\
+		    );								\
+		break;								\
+	}									\
+										\
+	case 8:									\
+	{									\
+		union { uint64_t x; u32 y[2]; } z;				\
+		uint8_t a;							\
+		asm("	ldub%I3		%M3,%0		\n"			\
+		    "	ldub%I4.p	%M4,%2		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%2,%0	\n"			\
+		    "	ldub%I5.p	%M5,%2		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%2,%0	\n"			\
+		    "	ldub%I6.p	%M6,%2		\n"			\
+		    "	slli		%0,#8,%0	\n"			\
+		    "	or		%0,%2,%0	\n"			\
+		    "	ldub%I7		%M7,%1		\n"			\
+		    "	ldub%I8.p	%M8,%2		\n"			\
+		    "	slli		%1,#8,%1	\n"			\
+		    "	or		%1,%2,%1	\n"			\
+		    "	ldub%I9.p	%M9,%2		\n"			\
+		    "	slli		%1,#8,%1	\n"			\
+		    "	or		%1,%2,%1	\n"			\
+		    "	ldub%I10.p	%M10,%2		\n"			\
+		    "	slli		%1,#8,%1	\n"			\
+		    "	or		%1,%2,%1	\n"			\
+		    : "=&r"(z.y[0]), "=&r"(z.y[1]), "=&r"(a)			\
+		    : "m"(__p[0]), "m"(__p[1]), "m"(__p[2]), "m"(__p[3]),	\
+		      "m"(__p[4]), "m"(__p[5]), "m"(__p[6]), "m"(__p[7])	\
+		    );								\
+		x = z.x;							\
+		break;								\
+	}									\
+										\
+	default:								\
+		x = 0;								\
+		BUG();								\
+		break;								\
+	}									\
+										\
+	x;									\
+})
+
+#define put_unaligned(val, ptr)								\
+do {											\
+	char *__p = (char *) (ptr);							\
+	int x;										\
+											\
+	switch (sizeof(*ptr)) {								\
+	case 2:										\
+	{										\
+		asm("	stb%I1.p	%0,%M1		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I2		%0,%M2		\n"				\
+		    : "=r"(x), "=m"(__p[1]),  "=m"(__p[0])				\
+		    : "0"(val)								\
+		    );									\
+		break;									\
+	}										\
+											\
+	case 4:										\
+	{										\
+		asm("	stb%I1.p	%0,%M1		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I2.p	%0,%M2		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I3.p	%0,%M3		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I4		%0,%M4		\n"				\
+		    : "=r"(x), "=m"(__p[3]),  "=m"(__p[2]), "=m"(__p[1]), "=m"(__p[0])	\
+		    : "0"(val)								\
+		    );									\
+		break;									\
+	}										\
+											\
+	case 8:										\
+	{										\
+		uint32_t __high, __low;							\
+		__high = (uint64_t)val >> 32;						\
+		__low = val & 0xffffffff;						\
+		asm("	stb%I2.p	%0,%M2		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I3.p	%0,%M3		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I4.p	%0,%M4		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I5.p	%0,%M5		\n"				\
+		    "	srli		%0,#8,%0	\n"				\
+		    "	stb%I6.p	%1,%M6		\n"				\
+		    "	srli		%1,#8,%1	\n"				\
+		    "	stb%I7.p	%1,%M7		\n"				\
+		    "	srli		%1,#8,%1	\n"				\
+		    "	stb%I8.p	%1,%M8		\n"				\
+		    "	srli		%1,#8,%1	\n"				\
+		    "	stb%I9		%1,%M9		\n"				\
+		    : "=&r"(__low), "=&r"(__high), "=m"(__p[7]), "=m"(__p[6]), 		\
+		      "=m"(__p[5]), "=m"(__p[4]), "=m"(__p[3]), "=m"(__p[2]), 		\
+		      "=m"(__p[1]), "=m"(__p[0])					\
+		    : "0"(__low), "1"(__high)						\
+		    );									\
+		break;									\
+	}										\
+											\
+        default:									\
+		*(ptr) = (val);								\
+		break;									\
+	}										\
+} while(0)
+
+#endif
+
+#endif

include/asm-frv/user.h

+/* user.h: FR-V core file format stuff
+ *
+ * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _ASM_USER_H
+#define _ASM_USER_H
+
+#include <asm/page.h>
+#include <asm/registers.h>
+
+/* Core file format: The core file is written in such a way that gdb
+ * can understand it and provide useful information to the user (under
+ * linux we use the 'trad-core' bfd).  There are quite a number of
+ * obstacles to being able to view the contents of the floating point
+ * registers, and until these are solved you will not be able to view
+ * the contents of them.  Actually, you can read in the core file and
+ * look at the contents of the user struct to find out what the
+ * floating point registers contain.
+ *
+ * The actual file contents are as follows:
+ * UPAGE:
+ *   1 page consisting of a user struct that tells gdb what is present
+ *   in the file.  Directly after this is a copy of the task_struct,
+ *   which is currently not used by gdb, but it may come in useful at
+ *   some point.  All of the registers are stored as part of the
+ *   upage.  The upage should always be only one page.
+ *
+ * DATA:
+ *   The data area is stored.  We use current->end_text to
+ *   current->brk to pick up all of the user variables, plus any
+ *   memory that may have been malloced.  No attempt is made to
+ *   determine if a page is demand-zero or if a page is totally
+ *   unused, we just cover the entire range.  All of the addresses are
+ *   rounded in such a way that an integral number of pages is
+ *   written.
+ *
+ * STACK:
+ *   We need the stack information in order to get a meaningful
+ *   backtrace.  We need to write the data from (esp) to
+ *   current->start_stack, so we round each of these off in order to
+ *   be able to write an integer number of pages.  The minimum core
+ *   file size is 3 pages, or 12288 bytes.
+ */
+
+/* When the kernel dumps core, it starts by dumping the user struct -
+ * this will be used by gdb to figure out where the data and stack segments
+ *  are within the file, and what virtual addresses to use.
+ */
+struct user {
+	/* We start with the registers, to mimic the way that "memory" is returned
+	 * from the ptrace(3,...) function.  */
+	struct user_context	regs;
+
+	/* The rest of this junk is to help gdb figure out what goes where */
+	unsigned long		u_tsize;	/* Text segment size (pages). */
+	unsigned long		u_dsize;	/* Data segment size (pages). */
+	unsigned long		u_ssize;	/* Stack segment size (pages). */
+	unsigned long		start_code;     /* Starting virtual address of text. */
+	unsigned long		start_stack;	/* Starting virtual address of stack area.
+						 * This is actually the bottom of the stack,
+						 * the top of the stack is always found in the
+						 * esp register.  */
+	long int		signal;		/* Signal that caused the core dump. */
+
+	unsigned long		magic;		/* To uniquely identify a core file */
+	char			u_comm[32];	/* User command that was responsible */
+};
+
+#define NBPG			PAGE_SIZE
+#define UPAGES			1
+#define HOST_TEXT_START_ADDR	(u.start_code)
+#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
+
+#endif

include/asm-frv/virtconvert.h

+/* virtconvert.h: virtual/physical/page address convertion
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _ASM_VIRTCONVERT_H
+#define _ASM_VIRTCONVERT_H
+
+/*
+ * Macros used for converting between virtual and physical mappings.
+ */
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <asm/setup.h>
+
+#ifdef CONFIG_MMU
+
+#define phys_to_virt(vaddr)	((void *) ((unsigned long)(vaddr) + PAGE_OFFSET))
+#define virt_to_phys(vaddr)	((unsigned long) (vaddr) - PAGE_OFFSET)
+
+#else
+
+#define phys_to_virt(vaddr)	((void *) (vaddr))
+#define virt_to_phys(vaddr)	((unsigned long) (vaddr))
+
+#endif
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+#define __page_address(page)	(PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))
+#define page_to_phys(page)	virt_to_phys((void *)__page_address(page))
+
+#endif
+#endif

include/linux/elf.h

@@ -36,8 +36,9 @@ typedef __s64	Elf64_Sxword;
 #define PT_NOTE    4
 #define PT_SHLIB   5
 #define PT_PHDR    6
-#define PT_LOOS	   0x60000000
-#define PT_HIOS	   0x6fffffff
+#define PT_TLS     7               /* Thread local storage segment */
+#define PT_LOOS    0x60000000      /* OS-specific */
+#define PT_HIOS    0x6fffffff      /* OS-specific */
 #define PT_LOPROC  0x70000000
 #define PT_HIPROC  0x7fffffff
 #define PT_GNU_EH_FRAME		0x6474e550
@@ -109,6 +110,8 @@ typedef __s64	Elf64_Sxword;
  */
 #define EM_S390_OLD     0xA390
 
+#define EM_FRV		0x5441		/* Fujitsu FR-V */
+
 /* This is the info that is needed to parse the dynamic section of the file */
 #define DT_NULL		0
 #define DT_NEEDED	1

include/linux/suspend.h

 #ifndef _LINUX_SWSUSP_H
 #define _LINUX_SWSUSP_H
 
-#ifdef CONFIG_X86
+#if defined(CONFIG_X86) || defined(CONFIG_FRV)
 #include <asm/suspend.h>
 #endif
 #include <linux/swap.h>