Commit 2d6f82fe authored by Max Filippov's avatar Max Filippov Committed by Chris Zankel

xtensa: move spill_registers to traps.h

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: default avatarChris Zankel <chris@zankel.net>
parent b6c7e873
...@@ -20,4 +20,28 @@ ...@@ -20,4 +20,28 @@
extern void * __init trap_set_handler(int cause, void *handler); extern void * __init trap_set_handler(int cause, void *handler);
extern void do_unhandled(struct pt_regs *regs, unsigned long exccause); extern void do_unhandled(struct pt_regs *regs, unsigned long exccause);
static inline void spill_registers(void)
{
unsigned int a0, ps;
__asm__ __volatile__ (
"movi a14, " __stringify(PS_EXCM_BIT | LOCKLEVEL) "\n\t"
"mov a12, a0\n\t"
"rsr a13, sar\n\t"
"xsr a14, ps\n\t"
"movi a0, _spill_registers\n\t"
"rsync\n\t"
"callx0 a0\n\t"
"mov a0, a12\n\t"
"wsr a13, sar\n\t"
"wsr a14, ps\n\t"
: : "a" (&a0), "a" (&ps)
#if defined(CONFIG_FRAME_POINTER)
: "a2", "a3", "a4", "a11", "a12", "a13", "a14", "a15",
#else
: "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15",
#endif
"memory");
}
#endif /* _XTENSA_TRAPS_H */ #endif /* _XTENSA_TRAPS_H */
...@@ -37,6 +37,7 @@ ...@@ -37,6 +37,7 @@
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/pgtable.h> #include <asm/pgtable.h>
#include <asm/processor.h> #include <asm/processor.h>
#include <asm/traps.h>
#ifdef CONFIG_KGDB #ifdef CONFIG_KGDB
extern int gdb_enter; extern int gdb_enter;
...@@ -413,26 +414,6 @@ static __always_inline unsigned long *stack_pointer(struct task_struct *task) ...@@ -413,26 +414,6 @@ static __always_inline unsigned long *stack_pointer(struct task_struct *task)
return sp; return sp;
} }
static inline void spill_registers(void)
{
unsigned int a0, ps;
__asm__ __volatile__ (
"movi a14, " __stringify(PS_EXCM_BIT | LOCKLEVEL) "\n\t"
"mov a12, a0\n\t"
"rsr a13, sar\n\t"
"xsr a14, ps\n\t"
"movi a0, _spill_registers\n\t"
"rsync\n\t"
"callx0 a0\n\t"
"mov a0, a12\n\t"
"wsr a13, sar\n\t"
"wsr a14, ps\n\t"
:: "a" (&a0), "a" (&ps)
: "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15",
"memory");
}
void show_trace(struct task_struct *task, unsigned long *sp) void show_trace(struct task_struct *task, unsigned long *sp)
{ {
unsigned long a0, a1, pc; unsigned long a0, a1, pc;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment