projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1394f032 BW |
1 | #ifndef __BFIN_ENTRY_H |
| 2 | #define __BFIN_ENTRY_H | |
| 3 | ||
| 4 | #include <asm/setup.h> | |
| 5 | #include <asm/page.h> | |
| 6 | ||
| 7 | #ifdef __ASSEMBLY__ | |
| 8 | ||
| 9 | #define LFLUSH_I_AND_D 0x00000808 | |
| 10 | #define LSIGTRAP 5 | |
| 11 | ||
| 12 | /* process bits for task_struct.flags */ | |
| 13 | #define PF_TRACESYS_OFF 3 | |
| 14 | #define PF_TRACESYS_BIT 5 | |
| 15 | #define PF_PTRACED_OFF 3 | |
| 16 | #define PF_PTRACED_BIT 4 | |
| 17 | #define PF_DTRACE_OFF 1 | |
| 18 | #define PF_DTRACE_BIT 5 | |
| 19 | ||
| 20 | /* This one is used for exceptions, emulation, and NMI. It doesn't push | |
| 21 | RETI and doesn't do cli. */ | |
| 22 | #define SAVE_ALL_SYS save_context_no_interrupts | |
| 23 | /* This is used for all normal interrupts. It saves a minimum of registers | |
| 24 | to the stack, loads the IRQ number, and jumps to common code. */ | |
| 25 | #define INTERRUPT_ENTRY(N) \ | |
| 26 | [--sp] = SYSCFG; \ | |
| 27 | \ | |
| 28 | [--sp] = P0; /*orig_p0*/ \ | |
| 29 | [--sp] = R0; /*orig_r0*/ \ | |
| 30 | [--sp] = (R7:0,P5:0); \ | |
| 31 | R0 = (N); \ | |
| 32 | jump __common_int_entry; | |
| 33 | ||
| 34 | /* For timer interrupts, we need to save IPEND, since the user_mode | |
| 35 | macro accesses it to determine where to account time. */ | |
| 36 | #define TIMER_INTERRUPT_ENTRY(N) \ | |
| 37 | [--sp] = SYSCFG; \ | |
| 38 | \ | |
| 39 | [--sp] = P0; /*orig_p0*/ \ | |
| 40 | [--sp] = R0; /*orig_r0*/ \ | |
| 41 | [--sp] = (R7:0,P5:0); \ | |
| 42 | p0.l = lo(IPEND); \ | |
| 43 | p0.h = hi(IPEND); \ | |
| 44 | r1 = [p0]; \ | |
| 45 | R0 = (N); \ | |
| 46 | jump __common_int_entry; | |
| 47 | ||
| 48 | /* This one pushes RETI without using CLI. Interrupts are enabled. */ | |
| 49 | #define SAVE_CONTEXT_SYSCALL save_context_syscall | |
| 50 | #define SAVE_CONTEXT save_context_with_interrupts | |
| 51 | ||
| 52 | #define RESTORE_ALL_SYS restore_context_no_interrupts | |
| 53 | #define RESTORE_CONTEXT restore_context_with_interrupts | |
| 54 | ||
| 55 | #endif /* __ASSEMBLY__ */ | |
| 56 | #endif /* __BFIN_ENTRY_H */ |