mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 04:22:19 +07:00
f615136c06
This is largely based on SMP code from the xtensa-2.6.29-smp tree by Piet Delaney, Marc Gauthier, Joe Taylor, Christian Zankel (and possibly other Tensilica folks). Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
|
|
* include/asm-xtensa/ptrace.h
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2001 - 2005 Tensilica Inc.
|
|
*/
|
|
#ifndef _XTENSA_PTRACE_H
|
|
#define _XTENSA_PTRACE_H
|
|
|
|
#include <uapi/asm/ptrace.h>
|
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <asm/coprocessor.h>
|
|
|
|
/*
|
|
* This struct defines the way the registers are stored on the
|
|
* kernel stack during a system call or other kernel entry.
|
|
*/
|
|
struct pt_regs {
|
|
unsigned long pc; /* 4 */
|
|
unsigned long ps; /* 8 */
|
|
unsigned long depc; /* 12 */
|
|
unsigned long exccause; /* 16 */
|
|
unsigned long excvaddr; /* 20 */
|
|
unsigned long debugcause; /* 24 */
|
|
unsigned long wmask; /* 28 */
|
|
unsigned long lbeg; /* 32 */
|
|
unsigned long lend; /* 36 */
|
|
unsigned long lcount; /* 40 */
|
|
unsigned long sar; /* 44 */
|
|
unsigned long windowbase; /* 48 */
|
|
unsigned long windowstart; /* 52 */
|
|
unsigned long syscall; /* 56 */
|
|
unsigned long icountlevel; /* 60 */
|
|
unsigned long scompare1; /* 64 */
|
|
unsigned long threadptr; /* 68 */
|
|
|
|
/* Additional configurable registers that are used by the compiler. */
|
|
xtregs_opt_t xtregs_opt;
|
|
|
|
/* Make sure the areg field is 16 bytes aligned. */
|
|
int align[0] __attribute__ ((aligned(16)));
|
|
|
|
/* current register frame.
|
|
* Note: The ESF for kernel exceptions ends after 16 registers!
|
|
*/
|
|
unsigned long areg[16];
|
|
};
|
|
|
|
#include <variant/core.h>
|
|
|
|
# define arch_has_single_step() (1)
|
|
# define task_pt_regs(tsk) ((struct pt_regs*) \
|
|
(task_stack_page(tsk) + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4) - 1)
|
|
# define user_mode(regs) (((regs)->ps & 0x00000020)!=0)
|
|
# define instruction_pointer(regs) ((regs)->pc)
|
|
# define return_pointer(regs) (MAKE_PC_FROM_RA((regs)->areg[0], \
|
|
(regs)->areg[1]))
|
|
|
|
# ifndef CONFIG_SMP
|
|
# define profile_pc(regs) instruction_pointer(regs)
|
|
# else
|
|
# define profile_pc(regs) \
|
|
({ \
|
|
in_lock_functions(instruction_pointer(regs)) ? \
|
|
return_pointer(regs) : instruction_pointer(regs); \
|
|
})
|
|
# endif
|
|
|
|
#define user_stack_pointer(regs) ((regs)->areg[1])
|
|
|
|
#else /* __ASSEMBLY__ */
|
|
|
|
# include <asm/asm-offsets.h>
|
|
#define PT_REGS_OFFSET (KERNEL_STACK_SIZE - PT_USER_SIZE)
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* _XTENSA_PTRACE_H */
|