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Diffstat (limited to 'arch/microblaze/kernel/process.c')
-rw-r--r--arch/microblaze/kernel/process.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 436f26ccbfa9..07d4fa339eda 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -18,7 +18,7 @@
18 18
19void show_regs(struct pt_regs *regs) 19void show_regs(struct pt_regs *regs)
20{ 20{
21 printk(KERN_INFO " Registers dump: mode=%X\r\n", regs->kernel_mode); 21 printk(KERN_INFO " Registers dump: mode=%X\r\n", regs->pt_mode);
22 printk(KERN_INFO " r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n", 22 printk(KERN_INFO " r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n",
23 regs->r1, regs->r2, regs->r3, regs->r4); 23 regs->r1, regs->r2, regs->r3, regs->r4);
24 printk(KERN_INFO " r5=%08lX, r6=%08lX, r7=%08lX, r8=%08lX\n", 24 printk(KERN_INFO " r5=%08lX, r6=%08lX, r7=%08lX, r8=%08lX\n",
@@ -37,8 +37,6 @@ void show_regs(struct pt_regs *regs)
37 regs->r29, regs->r30, regs->r31, regs->pc); 37 regs->r29, regs->r30, regs->r31, regs->pc);
38 printk(KERN_INFO " msr=%08lX, ear=%08lX, esr=%08lX, fsr=%08lX\n", 38 printk(KERN_INFO " msr=%08lX, ear=%08lX, esr=%08lX, fsr=%08lX\n",
39 regs->msr, regs->ear, regs->esr, regs->fsr); 39 regs->msr, regs->ear, regs->esr, regs->fsr);
40 while (1)
41 ;
42} 40}
43 41
44void (*pm_idle)(void); 42void (*pm_idle)(void);
@@ -163,7 +161,6 @@ static void kernel_thread_helper(int (*fn)(void *), void *arg)
163int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) 161int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
164{ 162{
165 struct pt_regs regs; 163 struct pt_regs regs;
166 int ret;
167 164
168 memset(&regs, 0, sizeof(regs)); 165 memset(&regs, 0, sizeof(regs));
169 /* store them in non-volatile registers */ 166 /* store them in non-volatile registers */
@@ -171,12 +168,10 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
171 regs.r6 = (unsigned long)arg; 168 regs.r6 = (unsigned long)arg;
172 local_save_flags(regs.msr); 169 local_save_flags(regs.msr);
173 regs.pc = (unsigned long)kernel_thread_helper; 170 regs.pc = (unsigned long)kernel_thread_helper;
174 regs.kernel_mode = 1; 171 regs.pt_mode = 1;
175 172
176 ret = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, 173 return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
177 &regs, 0, NULL, NULL); 174 &regs, 0, NULL, NULL);
178
179 return ret;
180} 175}
181 176
182unsigned long get_wchan(struct task_struct *p) 177unsigned long get_wchan(struct task_struct *p)
@@ -184,3 +179,12 @@ unsigned long get_wchan(struct task_struct *p)
184/* TBD (used by procfs) */ 179/* TBD (used by procfs) */
185 return 0; 180 return 0;
186} 181}
182
183/* Set up a thread for executing a new program */
184void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp)
185{
186 set_fs(USER_DS);
187 regs->pc = pc;
188 regs->r1 = usp;
189 regs->pt_mode = 0;
190}