powerpc: merge ptrace.h

Move struct ptregs32 into asm-ppc64/ppc32.h

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

3 files changed, 105 insertions, 206 deletions

diff --git a/include/asm-ppc64/ptrace.h b/include/asm-powerpc/ptrace.h
index 3a55377f1fd3..1f7ecdb0b6ce 100644
--- a/include/asm-ppc64/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_PTRACE_H
-#define _PPC64_PTRACE_H
+#ifndef _ASM_POWERPC_PTRACE_H
+#define _ASM_POWERPC_PTRACE_H
 
 /*
  * Copyright (C) 2001 PPC64 Team, IBM Corp
@@ -16,7 +16,7 @@
  * that the overall structure is a multiple of 16 bytes in length.
  *
  * Note that the offsets of the fields in this struct correspond with
- * the PT_* values below.  This simplifies arch/ppc64/kernel/ptrace.c.
+ * the PT_* values below.  This simplifies arch/powerpc/kernel/ptrace.c.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -30,70 +30,96 @@ struct pt_regs {
         unsigned long gpr[32];
         unsigned long nip;
         unsigned long msr;
-        unsigned long orig_gpr3; /* Used for restarting system calls */
+        unsigned long orig_gpr3;        /* Used for restarting system calls */
         unsigned long ctr;
         unsigned long link;
         unsigned long xer;
         unsigned long ccr;
-        unsigned long softe;    /* Soft enabled/disabled */
-        unsigned long trap;     /* Reason for being here */
-        unsigned long dar;      /* Fault registers */
-        unsigned long dsisr;
-        unsigned long result;   /* Result of a system call */
+#ifdef __powerpc64__
+        unsigned long softe;            /* Soft enabled/disabled */
+#else
+        unsigned long mq;               /* 601 only (not used at present) */
+                                        /* Used on APUS to hold IPL value. */
+#endif
+        unsigned long trap;             /* Reason for being here */
+        /* N.B. for critical exceptions on 4xx, the dar and dsisr
+           fields are overloaded to hold srr0 and srr1. */
+        unsigned long dar;              /* Fault registers */
+        unsigned long dsisr;            /* on 4xx/Book-E used for ESR */
+        unsigned long result;           /* Result of a system call */
 };
 
-struct pt_regs32 {
-        unsigned int gpr[32];
-        unsigned int nip;
-        unsigned int msr;
-        unsigned int orig_gpr3; /* Used for restarting system calls */
-        unsigned int ctr;
-        unsigned int link;
-        unsigned int xer;
-        unsigned int ccr;
-        unsigned int mq;        /* 601 only (not used at present) */
-        unsigned int trap;      /* Reason for being here */
-        unsigned int dar;       /* Fault registers */
-        unsigned int dsisr;
-        unsigned int result;    /* Result of a system call */
-};
+#endif /* __ASSEMBLY__ */
 
 #ifdef __KERNEL__
 
-#define instruction_pointer(regs) ((regs)->nip)
+#ifdef __powerpc64__
+
+#define STACK_FRAME_OVERHEAD    112     /* size of minimum stack frame */
+
+/* Size of dummy stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE      128
+#define __SIGNAL_FRAMESIZE32    64
+
+#else /* __powerpc64__ */
+
+#define STACK_FRAME_OVERHEAD    16      /* size of minimum stack frame */
+
+/* Size of stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE      64
+
+#endif /* __powerpc64__ */
 
+#ifndef __ASSEMBLY__
+
+#define instruction_pointer(regs) ((regs)->nip)
 #ifdef CONFIG_SMP
 extern unsigned long profile_pc(struct pt_regs *regs);
 #else
 #define profile_pc(regs) instruction_pointer(regs)
 #endif
 
+#ifdef __powerpc64__
 #define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)
+#else
+#define user_mode(regs) (((regs)->msr & MSR_PR) != 0)
+#endif
 
 #define force_successful_syscall_return()   \
-                (current_thread_info()->syscall_noerror = 1)
+        do { \
+                current_thread_info()->syscall_noerror = 1; \
+        } while(0)
 
 /*
  * We use the least-significant bit of the trap field to indicate
  * whether we have saved the full set of registers, or only a
  * partial set.  A 1 there means the partial set.
+ * On 4xx we use the next bit to indicate whether the exception
+ * is a critical exception (1 means it is).
  */
 #define FULL_REGS(regs)         (((regs)->trap & 1) == 0)
+#ifndef __powerpc64__
+#define IS_CRITICAL_EXC(regs)   (((regs)->trap & 2) == 0)
+#endif /* ! __powerpc64__ */
 #define TRAP(regs)              ((regs)->trap & ~0xF)
+#ifdef __powerpc64__
 #define CHECK_FULL_REGS(regs)   BUG_ON(regs->trap & 1)
-
-#endif /* __KERNEL__ */
+#else
+#define CHECK_FULL_REGS(regs)                                                 \
+do {                                                                          \
+        if ((regs)->trap & 1)                                                 \
+                printk(KERN_CRIT "%s: partial register set\n", __FUNCTION__); \
+} while (0)
+#endif /* __powerpc64__ */
 
 #endif /* __ASSEMBLY__ */
 
-#define STACK_FRAME_OVERHEAD    112     /* size of minimum stack frame */
-
-/* Size of dummy stack frame allocated when calling signal handler. */
-#define __SIGNAL_FRAMESIZE      128
-#define __SIGNAL_FRAMESIZE32    64
+#endif /* __KERNEL__ */
 
 /*
  * Offsets used by 'ptrace' system call interface.
+ * These can't be changed without breaking binary compatibility
+ * with MkLinux, etc.
  */
 #define PT_R0   0
 #define PT_R1   1
@@ -137,18 +163,25 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 #define PT_LNK  36
 #define PT_XER  37
 #define PT_CCR  38
+#ifndef __powerpc64__
+#define PT_MQ   39
+#else
 #define PT_SOFTE 39
 #define PT_TRAP 40
 #define PT_DAR  41
 #define PT_DSISR 42
 #define PT_RESULT 43
+#endif
 
-#define PT_FPR0 48
+#define PT_FPR0 48      /* each FP reg occupies 2 slots in this space */
+
+#ifndef __powerpc64__
+
+#define PT_FPR31 (PT_FPR0 + 2*31)
+#define PT_FPSCR (PT_FPR0 + 2*32 + 1)
+
+#else /* __powerpc64__ */
 
-/*
- * Kernel and userspace will both use this PT_FPSCR value.  32-bit apps will
- * have visibility to the asm-ppc/ptrace.h header instead of this one.
- */
 #define PT_FPSCR (PT_FPR0 + 32) /* each FP reg occupies 1 slot in 64-bit space */
 
 #ifdef __KERNEL__
@@ -165,29 +198,29 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 #define PT_VRSAVE_32 (PT_VR0 + 33*4)
 #endif
 
+#endif /* __powerpc64__ */
+
 /*
- * Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go. 
- * The transfer totals 34 quadword.  Quadwords 0-31 contain the 
- * corresponding vector registers.  Quadword 32 contains the vscr as the 
- * last word (offset 12) within that quadword.  Quadword 33 contains the 
+ * Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go.
+ * The transfer totals 34 quadword.  Quadwords 0-31 contain the
+ * corresponding vector registers.  Quadword 32 contains the vscr as the
+ * last word (offset 12) within that quadword.  Quadword 33 contains the
  * vrsave as the first word (offset 0) within the quadword.
  *
- * This definition of the VMX state is compatible with the current PPC32 
- * ptrace interface.  This allows signal handling and ptrace to use the same 
- * structures.  This also simplifies the implementation of a bi-arch 
+ * This definition of the VMX state is compatible with the current PPC32
+ * ptrace interface.  This allows signal handling and ptrace to use the same
+ * structures.  This also simplifies the implementation of a bi-arch
  * (combined (32- and 64-bit) gdb.
  */
 #define PTRACE_GETVRREGS        18
 #define PTRACE_SETVRREGS        19
 
-/*
- * While we dont have 64bit book E processors, we need to reserve the
- * relevant ptrace calls for 32bit compatibility.
- */
-#if 0
-#define PTRACE_GETEVRREGS       20
-#define PTRACE_SETEVRREGS       21
-#endif
+#ifndef __powerpc64__
+/* Get/set all the upper 32-bits of the SPE registers, accumulator, and
+ * spefscr, in one go */
+#define PTRACE_GETEVRREGS       20
+#define PTRACE_SETEVRREGS       21
+#endif /* __powerpc64__ */
 
 /*
  * Get or set a debug register. The first 16 are DABR registers and the
@@ -196,6 +229,7 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 #define PTRACE_GET_DEBUGREG     25
 #define PTRACE_SET_DEBUGREG     26
 
+#ifdef __powerpc64__
 /* Additional PTRACE requests implemented on PowerPC. */
 #define PPC_PTRACE_GETREGS      0x99    /* Get GPRs 0 - 31 */
 #define PPC_PTRACE_SETREGS      0x98    /* Set GPRs 0 - 31 */
@@ -209,5 +243,6 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 #define PPC_PTRACE_POKEDATA_3264 0x92
 #define PPC_PTRACE_PEEKUSR_3264  0x91
 #define PPC_PTRACE_POKEUSR_3264  0x90
+#endif /* __powerpc64__ */
 
-#endif /* _PPC64_PTRACE_H */
+#endif /* _ASM_POWERPC_PTRACE_H */
diff --git a/include/asm-ppc/ptrace.h b/include/asm-ppc/ptrace.h
deleted file mode 100644
index c34fb4e37a97..000000000000
--- a/include/asm-ppc/ptrace.h
+++ /dev/null
@@ -1,152 +0,0 @@
-#ifndef _PPC_PTRACE_H
-#define _PPC_PTRACE_H
-
-/*
- * This struct defines the way the registers are stored on the
- * kernel stack during a system call or other kernel entry.
- *
- * this should only contain volatile regs
- * since we can keep non-volatile in the thread_struct
- * should set this up when only volatiles are saved
- * by intr code.
- *
- * Since this is going on the stack, *CARE MUST BE TAKEN* to insure
- * that the overall structure is a multiple of 16 bytes in length.
- *
- * Note that the offsets of the fields in this struct correspond with
- * the PT_* values below.  This simplifies arch/ppc/kernel/ptrace.c.
- */
-
-#ifndef __ASSEMBLY__
-struct pt_regs {
-        unsigned long gpr[32];
-        unsigned long nip;
-        unsigned long msr;
-        unsigned long orig_gpr3;        /* Used for restarting system calls */
-        unsigned long ctr;
-        unsigned long link;
-        unsigned long xer;
-        unsigned long ccr;
-        unsigned long mq;               /* 601 only (not used at present) */
-                                        /* Used on APUS to hold IPL value. */
-        unsigned long trap;             /* Reason for being here */
-        /* N.B. for critical exceptions on 4xx, the dar and dsisr
-           fields are overloaded to hold srr0 and srr1. */
-        unsigned long dar;              /* Fault registers */
-        unsigned long dsisr;            /* on 4xx/Book-E used for ESR */
-        unsigned long result;           /* Result of a system call */
-};
-
-#endif /* __ASSEMBLY__ */
-
-#ifdef __KERNEL__
-#define STACK_FRAME_OVERHEAD    16      /* size of minimum stack frame */
-
-/* Size of stack frame allocated when calling signal handler. */
-#define __SIGNAL_FRAMESIZE      64
-
-#ifndef __ASSEMBLY__
-#define instruction_pointer(regs) ((regs)->nip)
-#ifdef CONFIG_SMP
-extern unsigned long profile_pc(struct pt_regs *regs);
-#else
-#define profile_pc(regs) instruction_pointer(regs)
-#endif
-
-#define user_mode(regs) (((regs)->msr & MSR_PR) != 0)
-
-#define force_successful_syscall_return()   \
-        do { \
-                current_thread_info()->syscall_noerror = 1; \
-        } while(0)
-
-/*
- * We use the least-significant bit of the trap field to indicate
- * whether we have saved the full set of registers, or only a
- * partial set.  A 1 there means the partial set.
- * On 4xx we use the next bit to indicate whether the exception
- * is a critical exception (1 means it is).
- */
-#define FULL_REGS(regs)         (((regs)->trap & 1) == 0)
-#define IS_CRITICAL_EXC(regs)   (((regs)->trap & 2) == 0)
-#define TRAP(regs)              ((regs)->trap & ~0xF)
-
-#define CHECK_FULL_REGS(regs)                                                 \
-do {                                                                          \
-        if ((regs)->trap & 1)                                                 \
-                printk(KERN_CRIT "%s: partial register set\n", __FUNCTION__); \
-} while (0)
-#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-/*
- * Offsets used by 'ptrace' system call interface.
- * These can't be changed without breaking binary compatibility
- * with MkLinux, etc.
- */
-#define PT_R0   0
-#define PT_R1   1
-#define PT_R2   2
-#define PT_R3   3
-#define PT_R4   4
-#define PT_R5   5
-#define PT_R6   6
-#define PT_R7   7
-#define PT_R8   8
-#define PT_R9   9
-#define PT_R10  10
-#define PT_R11  11
-#define PT_R12  12
-#define PT_R13  13
-#define PT_R14  14
-#define PT_R15  15
-#define PT_R16  16
-#define PT_R17  17
-#define PT_R18  18
-#define PT_R19  19
-#define PT_R20  20
-#define PT_R21  21
-#define PT_R22  22
-#define PT_R23  23
-#define PT_R24  24
-#define PT_R25  25
-#define PT_R26  26
-#define PT_R27  27
-#define PT_R28  28
-#define PT_R29  29
-#define PT_R30  30
-#define PT_R31  31
-
-#define PT_NIP  32
-#define PT_MSR  33
-#ifdef __KERNEL__
-#define PT_ORIG_R3 34
-#endif
-#define PT_CTR  35
-#define PT_LNK  36
-#define PT_XER  37
-#define PT_CCR  38
-#define PT_MQ   39
-
-#define PT_FPR0 48      /* each FP reg occupies 2 slots in this space */
-#define PT_FPR31 (PT_FPR0 + 2*31)
-#define PT_FPSCR (PT_FPR0 + 2*32 + 1)
-
-/* Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go */
-#define PTRACE_GETVRREGS        18
-#define PTRACE_SETVRREGS        19
-
-/* Get/set all the upper 32-bits of the SPE registers, accumulator, and
- * spefscr, in one go */
-#define PTRACE_GETEVRREGS       20
-#define PTRACE_SETEVRREGS       21
-
-/*
- * Get or set a debug register. The first 16 are DABR registers and the
- * second 16 are IABR registers.
- */
-#define PTRACE_GET_DEBUGREG     25
-#define PTRACE_SET_DEBUGREG     26
-
-#endif
diff --git a/include/asm-ppc64/ppc32.h b/include/asm-ppc64/ppc32.h
index 3945a55d112a..90e562771791 100644
--- a/include/asm-ppc64/ppc32.h
+++ b/include/asm-ppc64/ppc32.h
@@ -91,6 +91,22 @@ typedef struct sigaltstack_32 {
         compat_size_t ss_size;
 } stack_32_t;
 
+struct pt_regs32 {
+        unsigned int gpr[32];
+        unsigned int nip;
+        unsigned int msr;
+        unsigned int orig_gpr3;         /* Used for restarting system calls */
+        unsigned int ctr;
+        unsigned int link;
+        unsigned int xer;
+        unsigned int ccr;
+        unsigned int mq;                /* 601 only (not used at present) */
+        unsigned int trap;              /* Reason for being here */
+        unsigned int dar;               /* Fault registers */
+        unsigned int dsisr;
+        unsigned int result;            /* Result of a system call */
+};
+
 struct sigcontext32 {
         unsigned int    _unused[4];
         int             signal;