mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-28 04:17:47 +00:00
6a01f23033
[Mike Frysinger <vapier.adi@gmail.com>:
- handle bf531/bf532/bf534/bf536 variants in ipipe.h
- cleanup IPIPE logic for bfin_set_irq_handler()
- cleanup ipipe asm code a bit and add missing ENDPROC()
- simplify IPIPE code in trap_c
- unify some of the IPIPE code and fix style
- simplify DO_IRQ_L1 handling with ipipe code
- revert IRQ_SW_INT# addition from ipipe merge
- remove duplicate get_{c,s}clk() prototypes
]
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
#ifndef __BFIN_ENTRY_H
|
|
#define __BFIN_ENTRY_H
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/page.h>
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
#define LFLUSH_I_AND_D 0x00000808
|
|
#define LSIGTRAP 5
|
|
|
|
/* process bits for task_struct.flags */
|
|
#define PF_TRACESYS_OFF 3
|
|
#define PF_TRACESYS_BIT 5
|
|
#define PF_PTRACED_OFF 3
|
|
#define PF_PTRACED_BIT 4
|
|
#define PF_DTRACE_OFF 1
|
|
#define PF_DTRACE_BIT 5
|
|
|
|
/*
|
|
* NOTE! The single-stepping code assumes that all interrupt handlers
|
|
* start by saving SYSCFG on the stack with their first instruction.
|
|
*/
|
|
|
|
/* This one is used for exceptions, emulation, and NMI. It doesn't push
|
|
RETI and doesn't do cli. */
|
|
#define SAVE_ALL_SYS save_context_no_interrupts
|
|
/* This is used for all normal interrupts. It saves a minimum of registers
|
|
to the stack, loads the IRQ number, and jumps to common code. */
|
|
#ifdef CONFIG_IPIPE
|
|
# define LOAD_IPIPE_IPEND \
|
|
P0.l = lo(IPEND); \
|
|
P0.h = hi(IPEND); \
|
|
R1 = [P0];
|
|
#else
|
|
# define LOAD_IPIPE_IPEND
|
|
#endif
|
|
#define INTERRUPT_ENTRY(N) \
|
|
[--sp] = SYSCFG; \
|
|
\
|
|
[--sp] = P0; /*orig_p0*/ \
|
|
[--sp] = R0; /*orig_r0*/ \
|
|
[--sp] = (R7:0,P5:0); \
|
|
R0 = (N); \
|
|
LOAD_IPIPE_IPEND \
|
|
jump __common_int_entry;
|
|
|
|
/* For timer interrupts, we need to save IPEND, since the user_mode
|
|
macro accesses it to determine where to account time. */
|
|
#define TIMER_INTERRUPT_ENTRY(N) \
|
|
[--sp] = SYSCFG; \
|
|
\
|
|
[--sp] = P0; /*orig_p0*/ \
|
|
[--sp] = R0; /*orig_r0*/ \
|
|
[--sp] = (R7:0,P5:0); \
|
|
p0.l = lo(IPEND); \
|
|
p0.h = hi(IPEND); \
|
|
r1 = [p0]; \
|
|
R0 = (N); \
|
|
jump __common_int_entry;
|
|
|
|
/* This one pushes RETI without using CLI. Interrupts are enabled. */
|
|
#define SAVE_CONTEXT_SYSCALL save_context_syscall
|
|
#define SAVE_CONTEXT save_context_with_interrupts
|
|
#define SAVE_CONTEXT_CPLB save_context_cplb
|
|
|
|
#define RESTORE_ALL_SYS restore_context_no_interrupts
|
|
#define RESTORE_CONTEXT restore_context_with_interrupts
|
|
#define RESTORE_CONTEXT_CPLB restore_context_cplb
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __BFIN_ENTRY_H */
|