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Diffstat (limited to 'arch/mn10300/include/asm/processor.h')
-rw-r--r--arch/mn10300/include/asm/processor.h66
1 files changed, 39 insertions, 27 deletions
diff --git a/arch/mn10300/include/asm/processor.h b/arch/mn10300/include/asm/processor.h
index f7d4b0d..4c1b5cc 100644
--- a/arch/mn10300/include/asm/processor.h
+++ b/arch/mn10300/include/asm/processor.h
@@ -13,10 +13,13 @@
#ifndef _ASM_PROCESSOR_H
#define _ASM_PROCESSOR_H
+#include <linux/threads.h>
+#include <linux/thread_info.h>
#include <asm/page.h>
#include <asm/ptrace.h>
#include <asm/cpu-regs.h>
-#include <linux/threads.h>
+#include <asm/uaccess.h>
+#include <asm/current.h>
/* Forward declaration, a strange C thing */
struct task_struct;
@@ -33,6 +36,8 @@ struct mm_struct;
__pc; \
})
+extern void get_mem_info(unsigned long *mem_base, unsigned long *mem_size);
+
extern void show_registers(struct pt_regs *regs);
/*
@@ -43,17 +48,22 @@ extern void show_registers(struct pt_regs *regs);
struct mn10300_cpuinfo {
int type;
- unsigned long loops_per_sec;
+ unsigned long loops_per_jiffy;
char hard_math;
- unsigned long *pgd_quick;
- unsigned long *pte_quick;
- unsigned long pgtable_cache_sz;
};
extern struct mn10300_cpuinfo boot_cpu_data;
+#ifdef CONFIG_SMP
+#if CONFIG_NR_CPUS < 2 || CONFIG_NR_CPUS > 8
+# error Sorry, NR_CPUS should be 2 to 8
+#endif
+extern struct mn10300_cpuinfo cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#else /* CONFIG_SMP */
#define cpu_data &boot_cpu_data
#define current_cpu_data boot_cpu_data
+#endif /* CONFIG_SMP */
extern void identify_cpu(struct mn10300_cpuinfo *);
extern void print_cpu_info(struct mn10300_cpuinfo *);
@@ -76,10 +86,6 @@ extern void dodgy_tsc(void);
*/
#define TASK_UNMAPPED_BASE 0x30000000
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
struct fpu_state_struct {
unsigned long fs[32]; /* fpu registers */
unsigned long fpcr; /* fpu control register */
@@ -92,20 +98,19 @@ struct thread_struct {
unsigned long a3; /* kernel FP */
unsigned long wchan;
unsigned long usp;
- struct pt_regs *__frame;
unsigned long fpu_flags;
#define THREAD_USING_FPU 0x00000001 /* T if this task is using the FPU */
+#define THREAD_HAS_FPU 0x00000002 /* T if this task owns the FPU right now */
struct fpu_state_struct fpu_state;
};
-#define INIT_THREAD \
-{ \
- .uregs = init_uregs, \
- .pc = 0, \
- .sp = 0, \
- .a3 = 0, \
- .wchan = 0, \
- .__frame = NULL, \
+#define INIT_THREAD \
+{ \
+ .uregs = init_uregs, \
+ .pc = 0, \
+ .sp = 0, \
+ .a3 = 0, \
+ .wchan = 0, \
}
#define INIT_MMAP \
@@ -117,13 +122,20 @@ struct thread_struct {
* - need to discard the frame stacked by the kernel thread invoking the execve
* syscall (see RESTORE_ALL macro)
*/
-#define start_thread(regs, new_pc, new_sp) do { \
- set_fs(USER_DS); \
- __frame = current->thread.uregs; \
- __frame->epsw = EPSW_nSL | EPSW_IE | EPSW_IM; \
- __frame->pc = new_pc; \
- __frame->sp = new_sp; \
-} while (0)
+static inline void start_thread(struct pt_regs *regs,
+ unsigned long new_pc, unsigned long new_sp)
+{
+ struct thread_info *ti = current_thread_info();
+ struct pt_regs *frame0;
+ set_fs(USER_DS);
+
+ frame0 = thread_info_to_uregs(ti);
+ frame0->epsw = EPSW_nSL | EPSW_IE | EPSW_IM;
+ frame0->pc = new_pc;
+ frame0->sp = new_sp;
+ ti->frame = frame0;
+}
+
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
@@ -157,7 +169,7 @@ unsigned long get_wchan(struct task_struct *p);
static inline void prefetch(const void *x)
{
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
#ifdef CONFIG_MN10300_PROC_MN103E010
asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
#else
@@ -168,7 +180,7 @@ static inline void prefetch(const void *x)
static inline void prefetchw(const void *x)
{
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
#ifdef CONFIG_MN10300_PROC_MN103E010
asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
#else
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