diff options
Diffstat (limited to 'arch/blackfin/include/asm/processor.h')
| -rw-r--r-- | arch/blackfin/include/asm/processor.h | 39 |
1 files changed, 5 insertions, 34 deletions
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 0eece23b41c..d0be99be830 100644 --- a/arch/blackfin/include/asm/processor.h +++ b/arch/blackfin/include/asm/processor.h @@ -7,9 +7,8 @@ */ #define current_text_addr() ({ __label__ _l; _l: &&_l;}) +#include <asm/ptrace.h> #include <asm/blackfin.h> -#include <asm/segment.h> -#include <linux/compiler.h> static inline unsigned long rdusp(void) { @@ -59,36 +58,8 @@ struct thread_struct { PS_S, 0, 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 - */ -#ifndef CONFIG_SMP -#define start_thread(_regs, _pc, _usp) \ -do { \ - set_fs(USER_DS); \ - (_regs)->pc = (_pc); \ - if (current->mm) \ - (_regs)->p5 = current->mm->start_data; \ - task_thread_info(current)->l1_task_info.stack_start \ - = (void *)current->mm->context.stack_start; \ - task_thread_info(current)->l1_task_info.lowest_sp = (void *)(_usp); \ - memcpy(L1_SCRATCH_TASK_INFO, &task_thread_info(current)->l1_task_info, \ - sizeof(*L1_SCRATCH_TASK_INFO)); \ - wrusp(_usp); \ -} while(0) -#else -#define start_thread(_regs, _pc, _usp) \ -do { \ - set_fs(USER_DS); \ - (_regs)->pc = (_pc); \ - if (current->mm) \ - (_regs)->p5 = current->mm->start_data; \ - wrusp(_usp); \ -} while (0) -#endif +extern void start_thread(struct pt_regs *regs, unsigned long new_ip, + unsigned long new_sp); /* Forward declaration, a strange C thing */ struct task_struct; @@ -131,8 +102,8 @@ unsigned long get_wchan(struct task_struct *p); /* Get the Silicon Revision of the chip */ static inline uint32_t __pure bfin_revid(void) { - /* stored in the upper 4 bits */ - uint32_t revid = bfin_read_CHIPID() >> 28; + /* Always use CHIPID, to work around ANOMALY_05000234 */ + uint32_t revid = (bfin_read_CHIPID() & CHIPID_VERSION) >> 28; #ifdef CONFIG_BF52x /* ANOMALY_05000357 |