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Diffstat (limited to 'arch/blackfin/include/asm/processor.h')
-rw-r--r--arch/blackfin/include/asm/processor.h39
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