diff options
Diffstat (limited to 'sys/powerpc/aim/swtch.S')
| -rw-r--r-- | sys/powerpc/aim/swtch.S | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/powerpc/aim/swtch.S b/sys/powerpc/aim/swtch.S index 038e788..1a09d87 100644 --- a/sys/powerpc/aim/swtch.S +++ b/sys/powerpc/aim/swtch.S @@ -67,13 +67,17 @@ #include <machine/asm.h> /* - * void cpu_switch(struct thread *old, struct thread *new) + * void cpu_switch(struct thread *old, + * struct thread *new, + * struct mutex *mtx); * * Switch to a new thread saving the current state in the old thread. */ ENTRY(cpu_switch) - lwz %r5,TD_PCB(%r3) /* Get the old thread's PCB ptr */ + stw %r5,TD_LOCK(%r3) /* ULE: update old thread's lock */ + /* XXX needs to change for MP */ + lwz %r5,TD_PCB(%r3) /* Get the old thread's PCB ptr */ mr %r12,%r2 stmw %r12,PCB_CONTEXT(%r5) /* Save the non-volatile GP regs. These can now be used for scratch */ |
