diff options
Diffstat (limited to 'include/asm-blackfin/processor.h')
| -rw-r--r-- | include/asm-blackfin/processor.h | 140 |
1 files changed, 1 insertions, 139 deletions
diff --git a/include/asm-blackfin/processor.h b/include/asm-blackfin/processor.h index 6cd4f56..d700cce 100644 --- a/include/asm-blackfin/processor.h +++ b/include/asm-blackfin/processor.h @@ -30,144 +30,6 @@ #ifndef __ASM_BLACKFIN_PROCESSOR_H #define __ASM_BLACKFIN_PROCESSOR_H -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ __label__ _l; _l: &&_l;}) - -#include <linux/config.h> -#include <asm/segment.h> -#include <asm/ptrace.h> -#include <asm/current.h> - -extern inline unsigned long rdusp(void) -{ - unsigned long usp; - - __asm__ __volatile__("%0 = usp;\n\t":"=da"(usp)); - return usp; -} - -extern inline void wrusp(unsigned long usp) -{ - __asm__ __volatile__("usp = %0;\n\t"::"da"(usp)); -} - -/* - * User space process size: 3.75GB. This is hardcoded into a few places, - * so don't change it unless you know what you are doing. - */ -#define TASK_SIZE (0xF0000000UL) - -/* - * Bus types - */ -#define EISA_bus 0 -#define MCA_bus 0 - -/* There is no pc register avaliable for BLACKFIN, so we are going to get - * it indirectly - */ - -#if 0 -inline unsigned long obtain_pc_indirectly(void) -{ - unsigned long pc; - __asm__ __volatile__("%0 = rets;\n":"=d"(pc)); - return (pc - 4); /* call pcrel24 is 4 bytes long */ -} -#endif - -/* - * if you change this structure, you must change the code and offsets - * in m68k/machasm.S - */ - -struct thread_struct { - unsigned long ksp; /* kernel stack pointer */ - unsigned long usp; /* user stack pointer */ - unsigned short seqstat; /* saved status register */ - unsigned long esp0; /* points to SR of stack frame pt_regs */ - unsigned long pc; /* instruction pointer */ -}; - -#define INIT_MMAP { &init_mm, 0, 0x40000000, NULL, __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED), VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL } - -#define INIT_THREAD { \ - sizeof(init_stack) + (unsigned long) init_stack, 0, \ - PS_S, 0\ -} - -/* - * Do necessary setup to start up a newly executed thread. - * - * pass the data segment into user programs if it exists, - * it can't hurt anything as far as I can tell - */ -#define start_thread(_regs, _pc, _usp) \ -do { \ - set_fs(USER_DS); /* reads from user space */ \ - (_regs)->pc = (_pc); \ - if (current->mm) \ - (_regs)->r5 = current->mm->start_data; \ - (_regs)->seqstat &= ~0x0c00; \ - wrusp(_usp); \ - /* Adde by HuTao, May 26, 2003 3:39PM */\ - if ((_regs)->ipend & 0x8000) /* check whether system in supper mode - StChen */\ - (_regs)->ipend = 0x0;\ -} while(0) - -/* Forward declaration, a strange C thing */ -struct task_struct; - -/* Free all resources held by a thread. */ -static inline void release_thread(struct task_struct *dead_task) -{ -} - -extern int kernel_thread(int (*fn) (void *), void *arg, unsigned long flags); - -#define copy_segments(tsk, mm) do { } while (0) -#define release_segments(mm) do { } while (0) -#define forget_segments() do { } while (0) - -/* - * Free current thread data structures etc.. - */ -static inline void exit_thread(void) -{ -} - -/* - * Return saved PC of a blocked thread. - */ -extern inline unsigned long thread_saved_pc(struct thread_struct *t) -{ - extern void scheduling_functions_start_here(void); - extern void scheduling_functions_end_here(void); - return 0; -} - -unsigned long get_wchan(struct task_struct *p); - -#define KSTK_EIP(tsk) \ - ({ \ - unsigned long eip = 0; \ - if ((tsk)->thread.esp0 > PAGE_SIZE && \ - MAP_NR((tsk)->thread.esp0) < max_mapnr) \ - eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \ - eip; }) -#define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) -#define THREAD_SIZE (2*PAGE_SIZE) - -/* Allocation and freeing of basic task resources. */ -#define alloc_task_struct() \ - ((struct task_struct *) __get_free_pages(GFP_KERNEL,1)) -#define free_task_struct(p) free_pages((unsigned long)(p),1) -#define get_task_struct(tsk) atomic_inc(&mem_map[MAP_NR(tsk)].count) - -#define init_task (init_task_union.task) -#define init_stack (init_task_union.stack) +/* Stub to make stupid common code happy */ #endif |