projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
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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 | ||
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20 | /* |
| 21 | * NOTE! The single-stepping code assumes that all interrupt handlers | |
| 22 | * start by saving SYSCFG on the stack with their first instruction. | |
| 23 | */ | |
| 24 | ||
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25 | /* This one is used for exceptions, emulation, and NMI. It doesn't push |
| 26 | RETI and doesn't do cli. */ | |
| 27 | #define SAVE_ALL_SYS save_context_no_interrupts | |
| 28 | /* This is used for all normal interrupts. It saves a minimum of registers | |
| 29 | to the stack, loads the IRQ number, and jumps to common code. */ | |
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30 | #ifdef CONFIG_IPIPE |
| 31 | # define LOAD_IPIPE_IPEND \ | |
| 32 | P0.l = lo(IPEND); \ | |
| 33 | P0.h = hi(IPEND); \ | |
| 34 | R1 = [P0]; | |
| 35 | #else | |
| 36 | # define LOAD_IPIPE_IPEND | |
| 37 | #endif | |
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38 | #define INTERRUPT_ENTRY(N) \ |
| 39 | [--sp] = SYSCFG; \ | |
| 40 | \ | |
| 41 | [--sp] = P0; /*orig_p0*/ \ | |
| 42 | [--sp] = R0; /*orig_r0*/ \ | |
| 43 | [--sp] = (R7:0,P5:0); \ | |
| 44 | R0 = (N); \ | |
| 6a01f230 | 45 | LOAD_IPIPE_IPEND \ |
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46 | jump __common_int_entry; |
| 47 | ||
| 48 | /* For timer interrupts, we need to save IPEND, since the user_mode | |
| 49 | macro accesses it to determine where to account time. */ | |
| 50 | #define TIMER_INTERRUPT_ENTRY(N) \ | |
| 51 | [--sp] = SYSCFG; \ | |
| 52 | \ | |
| 53 | [--sp] = P0; /*orig_p0*/ \ | |
| 54 | [--sp] = R0; /*orig_r0*/ \ | |
| 55 | [--sp] = (R7:0,P5:0); \ | |
| 56 | p0.l = lo(IPEND); \ | |
| 57 | p0.h = hi(IPEND); \ | |
| 58 | r1 = [p0]; \ | |
| 59 | R0 = (N); \ | |
| 60 | jump __common_int_entry; | |
| 61 | ||
| 62 | /* This one pushes RETI without using CLI. Interrupts are enabled. */ | |
| 63 | #define SAVE_CONTEXT_SYSCALL save_context_syscall | |
| 64 | #define SAVE_CONTEXT save_context_with_interrupts | |
| dbdf20db | 65 | #define SAVE_CONTEXT_CPLB save_context_cplb |
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66 | |
| 67 | #define RESTORE_ALL_SYS restore_context_no_interrupts | |
| 68 | #define RESTORE_CONTEXT restore_context_with_interrupts | |
| dbdf20db | 69 | #define RESTORE_CONTEXT_CPLB restore_context_cplb |
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70 | |
| 71 | #endif /* __ASSEMBLY__ */ | |
| 72 | #endif /* __BFIN_ENTRY_H */ |