diff options
Diffstat (limited to 'include/asm-cris/arch-v32/processor.h')
-rw-r--r-- | include/asm-cris/arch-v32/processor.h | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/include/asm-cris/arch-v32/processor.h b/include/asm-cris/arch-v32/processor.h deleted file mode 100644 index f80b47790ca6..000000000000 --- a/include/asm-cris/arch-v32/processor.h +++ /dev/null | |||
@@ -1,59 +0,0 @@ | |||
1 | #ifndef _ASM_CRIS_ARCH_PROCESSOR_H | ||
2 | #define _ASM_CRIS_ARCH_PROCESSOR_H | ||
3 | |||
4 | |||
5 | /* Return current instruction pointer. */ | ||
6 | #define current_text_addr() \ | ||
7 | ({void *pc; __asm__ __volatile__ ("lapcq .,%0" : "=rm" (pc)); pc;}) | ||
8 | |||
9 | /* | ||
10 | * Since CRIS doesn't do hardware task-switching this hasn't really anything to | ||
11 | * do with the proccessor itself, it's just here for legacy reasons. This is | ||
12 | * used when task-switching using _resume defined in entry.S. The offsets here | ||
13 | * are hardcoded into _resume, so if this struct is changed, entry.S needs to be | ||
14 | * changed as well. | ||
15 | */ | ||
16 | struct thread_struct { | ||
17 | unsigned long ksp; /* Kernel stack pointer. */ | ||
18 | unsigned long usp; /* User stack pointer. */ | ||
19 | unsigned long ccs; /* Saved flags register. */ | ||
20 | }; | ||
21 | |||
22 | /* | ||
23 | * User-space process size. This is hardcoded into a few places, so don't | ||
24 | * changed it unless everything's clear! | ||
25 | */ | ||
26 | #ifndef CONFIG_ETRAX_VCS_SIM | ||
27 | #define TASK_SIZE (0xB0000000UL) | ||
28 | #else | ||
29 | #define TASK_SIZE (0xA0000000UL) | ||
30 | #endif | ||
31 | |||
32 | /* CCS I=1, enable interrupts. */ | ||
33 | #define INIT_THREAD { 0, 0, (1 << I_CCS_BITNR) } | ||
34 | |||
35 | #define KSTK_EIP(tsk) \ | ||
36 | ({ \ | ||
37 | unsigned long eip = 0; \ | ||
38 | unsigned long regs = (unsigned long)task_pt_regs(tsk); \ | ||
39 | if (regs > PAGE_SIZE && virt_addr_valid(regs)) \ | ||
40 | eip = ((struct pt_regs *)regs)->erp; \ | ||
41 | eip; \ | ||
42 | }) | ||
43 | |||
44 | /* | ||
45 | * Give the thread a program location, set user-mode and switch user | ||
46 | * stackpointer. | ||
47 | */ | ||
48 | #define start_thread(regs, ip, usp) \ | ||
49 | do { \ | ||
50 | set_fs(USER_DS); \ | ||
51 | regs->erp = ip; \ | ||
52 | regs->ccs |= 1 << (U_CCS_BITNR + CCS_SHIFT); \ | ||
53 | wrusp(usp); \ | ||
54 | } while(0) | ||
55 | |||
56 | /* Nothing special to do for v32 when handling a kernel bus fault fixup. */ | ||
57 | #define arch_fixup(regs) {}; | ||
58 | |||
59 | #endif /* _ASM_CRIS_ARCH_PROCESSOR_H */ | ||