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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 */ |