arch/parisc/include/asm/kgdb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * PA-RISC KGDB support
   4  *
   5  * Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>
   6  *
   7  */
   8
   9 #ifndef __PARISC_KGDB_H__
  10 #define __PARISC_KGDB_H__
  11
  12 #define BREAK_INSTR_SIZE                4
  13 #define PARISC_KGDB_COMPILED_BREAK_INSN 0x3ffc01f
  14 #define PARISC_KGDB_BREAK_INSN          0x3ffa01f
  15
  16
  17 #define NUMREGBYTES                     sizeof(struct parisc_gdb_regs)
  18 #define BUFMAX                          4096
  19
  20 #define CACHE_FLUSH_IS_SAFE             1
  21
  22 #ifndef __ASSEMBLY__
  23
  24 static inline void arch_kgdb_breakpoint(void)
  25 {
  26         asm(".word %0" : : "i"(PARISC_KGDB_COMPILED_BREAK_INSN) : "memory");
  27 }
  28
  29 struct parisc_gdb_regs {
  30         unsigned long gpr[32];
  31         unsigned long sar;
  32         unsigned long iaoq_f;
  33         unsigned long iasq_f;
  34         unsigned long iaoq_b;
  35         unsigned long iasq_b;
  36         unsigned long eiem;
  37         unsigned long iir;
  38         unsigned long isr;
  39         unsigned long ior;
  40         unsigned long ipsw;
  41         unsigned long __unused0;
  42         unsigned long sr4;
  43         unsigned long sr0;
  44         unsigned long sr1;
  45         unsigned long sr2;
  46         unsigned long sr3;
  47         unsigned long sr5;
  48         unsigned long sr6;
  49         unsigned long sr7;
  50         unsigned long cr0;
  51         unsigned long pid1;
  52         unsigned long pid2;
  53         unsigned long scrccr;
  54         unsigned long pid3;
  55         unsigned long pid4;
  56         unsigned long cr24;
  57         unsigned long cr25;
  58         unsigned long cr26;
  59         unsigned long cr27;
  60         unsigned long cr28;
  61         unsigned long cr29;
  62         unsigned long cr30;
  63
  64         u64 fr[32];
  65 };
  66
  67 #endif
  68 #endif