diff options
Diffstat (limited to 'include/asm-cris/arch-v10/processor.h')
-rw-r--r-- | include/asm-cris/arch-v10/processor.h | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/include/asm-cris/arch-v10/processor.h b/include/asm-cris/arch-v10/processor.h deleted file mode 100644 index cc692c7a0660..000000000000 --- a/include/asm-cris/arch-v10/processor.h +++ /dev/null | |||
@@ -1,70 +0,0 @@ | |||
1 | #ifndef __ASM_CRIS_ARCH_PROCESSOR_H | ||
2 | #define __ASM_CRIS_ARCH_PROCESSOR_H | ||
3 | |||
4 | /* | ||
5 | * Default implementation of macro that returns current | ||
6 | * instruction pointer ("program counter"). | ||
7 | */ | ||
8 | #define current_text_addr() ({void *pc; __asm__ ("move.d $pc,%0" : "=rm" (pc)); pc; }) | ||
9 | |||
10 | /* CRIS has no problems with write protection */ | ||
11 | #define wp_works_ok 1 | ||
12 | |||
13 | /* CRIS thread_struct. this really has nothing to do with the processor itself, since | ||
14 | * CRIS does not do any hardware task-switching, but it's here for legacy reasons. | ||
15 | * The thread_struct here is used when task-switching using _resume defined in entry.S. | ||
16 | * The offsets here are hardcoded into _resume - if you change this struct, you need to | ||
17 | * change them as well!!! | ||
18 | */ | ||
19 | |||
20 | struct thread_struct { | ||
21 | unsigned long ksp; /* kernel stack pointer */ | ||
22 | unsigned long usp; /* user stack pointer */ | ||
23 | unsigned long dccr; /* saved flag register */ | ||
24 | }; | ||
25 | |||
26 | /* | ||
27 | * User space process size. This is hardcoded into a few places, | ||
28 | * so don't change it unless you know what you are doing. | ||
29 | */ | ||
30 | |||
31 | #ifdef CONFIG_CRIS_LOW_MAP | ||
32 | #define TASK_SIZE (0x50000000UL) /* 1.25 GB */ | ||
33 | #else | ||
34 | #define TASK_SIZE (0xA0000000UL) /* 2.56 GB */ | ||
35 | #endif | ||
36 | |||
37 | #define INIT_THREAD { \ | ||
38 | 0, 0, 0x20 } /* ccr = int enable, nothing else */ | ||
39 | |||
40 | #define KSTK_EIP(tsk) \ | ||
41 | ({ \ | ||
42 | unsigned long eip = 0; \ | ||
43 | unsigned long regs = (unsigned long)task_pt_regs(tsk); \ | ||
44 | if (regs > PAGE_SIZE && \ | ||
45 | virt_addr_valid(regs)) \ | ||
46 | eip = ((struct pt_regs *)regs)->irp; \ | ||
47 | eip; \ | ||
48 | }) | ||
49 | |||
50 | /* give the thread a program location | ||
51 | * set user-mode (The 'U' flag (User mode flag) is CCR/DCCR bit 8) | ||
52 | * switch user-stackpointer | ||
53 | */ | ||
54 | |||
55 | #define start_thread(regs, ip, usp) do { \ | ||
56 | set_fs(USER_DS); \ | ||
57 | regs->irp = ip; \ | ||
58 | regs->dccr |= 1 << U_DCCR_BITNR; \ | ||
59 | wrusp(usp); \ | ||
60 | } while(0) | ||
61 | |||
62 | /* Called when handling a kernel bus fault fixup. | ||
63 | * | ||
64 | * After a fixup we do not want to return by restoring the CPU-state | ||
65 | * anymore, so switch frame-types (see ptrace.h) | ||
66 | */ | ||
67 | #define arch_fixup(regs) \ | ||
68 | regs->frametype = CRIS_FRAME_NORMAL; | ||
69 | |||
70 | #endif | ||