[PATCH] CRIS update: arch split

Changes necessary to make the sub-arch split complete.

Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/cris/kernel/ptrace.c

@@ -8,6 +8,12 @@
  * Authors:   Bjorn Wesen
  *
  * $Log: ptrace.c,v $
+ * Revision 1.10  2004/09/22 11:50:01  orjanf
+ * * Moved get_reg/put_reg to arch-specific files.
+ * * Added functions to access debug registers (CRISv32).
+ * * Added support for PTRACE_SINGLESTEP (CRISv32).
+ * * Added S flag to CCS_MASK (CRISv32).
+ *
  * Revision 1.9  2003/07/04 12:56:11  tobiasa
  * Moved arch-specific code to arch-specific files.
  *
@@ -72,37 +78,6 @@
 #include <asm/system.h>
 #include <asm/processor.h>
 
-/*
- * Get contents of register REGNO in task TASK.
- */
-inline long get_reg(struct task_struct *task, unsigned int regno)
-{
-	/* USP is a special case, it's not in the pt_regs struct but
-	 * in the tasks thread struct
-	 */
-
-	if (regno == PT_USP)
-		return task->thread.usp;
-	else if (regno < PT_MAX)
-		return ((unsigned long *)user_regs(task->thread_info))[regno];
-	else
-		return 0;
-}
-
-/*
- * Write contents of register REGNO in task TASK.
- */
-inline int put_reg(struct task_struct *task, unsigned int regno,
-			  unsigned long data)
-{
-	if (regno == PT_USP)
-		task->thread.usp = data;
-	else if (regno < PT_MAX)
-		((unsigned long *)user_regs(task->thread_info))[regno] = data;
-	else
-		return -1;
-	return 0;
-}
 
 /* notification of userspace execution resumption
  * - triggered by current->work.notify_resume

include/asm-cris/arch-v10/elf.h

@@ -1,6 +1,16 @@
 #ifndef __ASMCRIS_ARCH_ELF_H
 #define __ASMCRIS_ARCH_ELF_H
 
+#define ELF_MACH EF_CRIS_VARIANT_ANY_V0_V10
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x)			\
+ ((x)->e_machine == EM_CRIS			\
+  && ((((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_ANY_V0_V10	\
+      || (((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_COMMON_V10_V32))))
+
 /*
  * ELF register definitions..
  */

include/asm-cris/arch-v10/memmap.h

@@ -0,0 +1,22 @@
+#ifndef _ASM_ARCH_MEMMAP_H
+#define _ASM_ARCH_MEMMAP_H
+
+#define MEM_CSE0_START (0x00000000)
+#define MEM_CSE0_SIZE (0x04000000)
+#define MEM_CSE1_START (0x04000000)
+#define MEM_CSE1_SIZE (0x04000000)
+#define MEM_CSR0_START (0x08000000)
+#define MEM_CSR1_START (0x0c000000)
+#define MEM_CSP0_START (0x10000000)
+#define MEM_CSP1_START (0x14000000)
+#define MEM_CSP2_START (0x18000000)
+#define MEM_CSP3_START (0x1c000000)
+#define MEM_CSP4_START (0x20000000)
+#define MEM_CSP5_START (0x24000000)
+#define MEM_CSP6_START (0x28000000)
+#define MEM_CSP7_START (0x2c000000)
+#define MEM_DRAM_START (0x40000000)
+
+#define MEM_NON_CACHEABLE (0x80000000)
+
+#endif

include/asm-cris/arch-v10/processor.h

@@ -59,4 +59,12 @@ struct thread_struct {
 	wrusp(usp);           \
 } while(0)
 
+/* Called when handling a kernel bus fault fixup.
+ *
+ * After a fixup we do not want to return by restoring the CPU-state
+ * anymore, so switch frame-types (see ptrace.h)
+ */
+#define arch_fixup(regs) \
+   regs->frametype = CRIS_FRAME_NORMAL;
+
 #endif

include/asm-cris/elf.h

@@ -8,6 +8,27 @@
 #include <asm/arch/elf.h>
 #include <asm/user.h>
 
+#define R_CRIS_NONE             0
+#define R_CRIS_8                1
+#define R_CRIS_16               2
+#define R_CRIS_32               3
+#define R_CRIS_8_PCREL          4
+#define R_CRIS_16_PCREL         5
+#define R_CRIS_32_PCREL         6
+#define R_CRIS_GNU_VTINHERIT    7
+#define R_CRIS_GNU_VTENTRY      8
+#define R_CRIS_COPY             9
+#define R_CRIS_GLOB_DAT         10
+#define R_CRIS_JUMP_SLOT        11
+#define R_CRIS_RELATIVE         12
+#define R_CRIS_16_GOT           13
+#define R_CRIS_32_GOT           14
+#define R_CRIS_16_GOTPLT        15
+#define R_CRIS_32_GOTPLT        16
+#define R_CRIS_32_GOTREL        17
+#define R_CRIS_32_PLT_GOTREL    18
+#define R_CRIS_32_PLT_PCREL     19
+
 typedef unsigned long elf_greg_t;
 
 /* Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is
@@ -18,18 +39,30 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 /* A placeholder; CRIS does not have any fp regs.  */
 typedef unsigned long elf_fpregset_t;
 
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) ( (x)->e_machine == EM_CRIS )
-
 /*
  * These are used to set parameters in the core dumps.
  */
 #define ELF_CLASS	ELFCLASS32
-#define ELF_DATA	ELFDATA2LSB;
+#define ELF_DATA	ELFDATA2LSB
 #define ELF_ARCH	EM_CRIS
 
+/* The master for these definitions is {binutils}/include/elf/cris.h:  */
+/* User symbols in this file have a leading underscore.  */
+#define EF_CRIS_UNDERSCORE		0x00000001
+
+/* This is a mask for different incompatible machine variants.  */
+#define EF_CRIS_VARIANT_MASK		0x0000000e
+
+/* Variant 0; may contain v0..10 object.  */
+#define EF_CRIS_VARIANT_ANY_V0_V10	0x00000000
+
+/* Variant 1; contains v32 object.  */
+#define EF_CRIS_VARIANT_V32		0x00000002
+
+/* Variant 2; contains object compatible with v32 and v10.  */
+#define EF_CRIS_VARIANT_COMMON_V10_V32	0x00000004
+/* End of excerpt from {binutils}/include/elf/cris.h.  */
+
 #define USE_ELF_CORE_DUMP
 
 #define ELF_EXEC_PAGESIZE	8192

include/asm-cris/etraxgpio.h

@@ -13,7 +13,7 @@
          are enabled.
  *
  *
- * For ETRAX 200 (ARCH_V32):
+ * For ETRAX FS (ARCH_V32):
  * /dev/gpioa  minor 0,  8 bit GPIO, each bit can change direction
  * /dev/gpiob  minor 1, 18 bit GPIO, each bit can change direction
  * /dev/gpioc  minor 2, 18 bit GPIO, each bit can change direction
@@ -39,10 +39,10 @@
 #define ETRAXGPIO_IOCTYPE 43
 #define GPIO_MINOR_A 0
 #define GPIO_MINOR_B 1
-#define GPIO_MINOR_C 2
+#define GPIO_MINOR_LEDS 2
-#define GPIO_MINOR_D 3
+#define GPIO_MINOR_C 3
-#define GPIO_MINOR_E 4
+#define GPIO_MINOR_D 4
-#define GPIO_MINOR_LEDS 5
+#define GPIO_MINOR_E 5
 #define GPIO_MINOR_LAST 5
 #endif