From cb09f540a1c5e6c5beb6e82f554d51a1f2c87e67 Mon Sep 17 00:00:00 2001
From: Mikael Starvik <mikael.starvik@axis.com>
Date: Wed, 27 Jul 2005 11:44:27 -0700
Subject: [PATCH] [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 | 37 ++++------------------
include/asm-cris/arch-v10/elf.h | 10 ++++++
include/asm-cris/arch-v10/memmap.h | 22 +++++++++++++
include/asm-cris/arch-v10/processor.h | 8 +++++
include/asm-cris/elf.h | 45 +++++++++++++++++++++++----
include/asm-cris/etraxgpio.h | 10 +++---
6 files changed, 90 insertions(+), 42 deletions(-)
create mode 100644 include/asm-cris/arch-v10/memmap.h
diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c
index e85a2fdd9acf..2b6363cbe985 100644
--- a/arch/cris/kernel/ptrace.c
+++ b/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
diff --git a/include/asm-cris/arch-v10/elf.h b/include/asm-cris/arch-v10/elf.h
index 2a2201ca538e..1c38ee728b17 100644
--- a/include/asm-cris/arch-v10/elf.h
+++ b/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..
*/
diff --git a/include/asm-cris/arch-v10/memmap.h b/include/asm-cris/arch-v10/memmap.h
new file mode 100644
index 000000000000..13f3b971407f
--- /dev/null
+++ b/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
diff --git a/include/asm-cris/arch-v10/processor.h b/include/asm-cris/arch-v10/processor.h
index 9355d8675a58..e23df8dc96e8 100644
--- a/include/asm-cris/arch-v10/processor.h
+++ b/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
diff --git a/include/asm-cris/elf.h b/include/asm-cris/elf.h
index d37fd5c4a567..87a60bd8e667 100644
--- a/include/asm-cris/elf.h
+++ b/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
diff --git a/include/asm-cris/etraxgpio.h b/include/asm-cris/etraxgpio.h
index cf04af9635cc..80ee10f70d43 100644
--- a/include/asm-cris/etraxgpio.h
+++ b/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_D 3
-#define GPIO_MINOR_E 4
-#define GPIO_MINOR_LEDS 5
+#define GPIO_MINOR_LEDS 2
+#define GPIO_MINOR_C 3
+#define GPIO_MINOR_D 4
+#define GPIO_MINOR_E 5
#define GPIO_MINOR_LAST 5
#endif