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 cc692c7..0000000 --- a/include/asm-cris/arch-v10/processor.h +++ /dev/null @@ -1,70 +0,0 @@ -#ifndef __ASM_CRIS_ARCH_PROCESSOR_H -#define __ASM_CRIS_ARCH_PROCESSOR_H - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({void *pc; __asm__ ("move.d $pc,%0" : "=rm" (pc)); pc; }) - -/* CRIS has no problems with write protection */ -#define wp_works_ok 1 - -/* CRIS thread_struct. this really has nothing to do with the processor itself, since - * CRIS does not do any hardware task-switching, but it's here for legacy reasons. - * The thread_struct here is used when task-switching using _resume defined in entry.S. - * The offsets here are hardcoded into _resume - if you change this struct, you need to - * change them as well!!! -*/ - -struct thread_struct { - unsigned long ksp; /* kernel stack pointer */ - unsigned long usp; /* user stack pointer */ - unsigned long dccr; /* saved flag register */ -}; - -/* - * User space process size. This is hardcoded into a few places, - * so don't change it unless you know what you are doing. - */ - -#ifdef CONFIG_CRIS_LOW_MAP -#define TASK_SIZE (0x50000000UL) /* 1.25 GB */ -#else -#define TASK_SIZE (0xA0000000UL) /* 2.56 GB */ -#endif - -#define INIT_THREAD { \ - 0, 0, 0x20 } /* ccr = int enable, nothing else */ - -#define KSTK_EIP(tsk) \ -({ \ - unsigned long eip = 0; \ - unsigned long regs = (unsigned long)task_pt_regs(tsk); \ - if (regs > PAGE_SIZE && \ - virt_addr_valid(regs)) \ - eip = ((struct pt_regs *)regs)->irp; \ - eip; \ -}) - -/* give the thread a program location - * set user-mode (The 'U' flag (User mode flag) is CCR/DCCR bit 8) - * switch user-stackpointer - */ - -#define start_thread(regs, ip, usp) do { \ - set_fs(USER_DS); \ - regs->irp = ip; \ - regs->dccr |= 1 << U_DCCR_BITNR; \ - wrusp(usp); \ -} while(0) - -/* Called when handling a kernel bus fault fixup. - * - * After a fixup we do not want to return by restoring the CPU-state - * anymore, so switch frame-types (see ptrace.h) - */ -#define arch_fixup(regs) \ - regs->frametype = CRIS_FRAME_NORMAL; - -#endif |