Add x86/acpica/acpi_wakeup.c for amd64 and i386. Difference of

suspend/resume procedures are minimized among them.

common:
- Add global cpuset suspended_cpus to indicate APs are suspended/resumed.
- Remove acpi_waketag and acpi_wakemap from acpivar.h (no longer used).
- Add some variables in acpi_wakecode.S in order to minimize the difference
  among amd64 and i386.
- Disable load_cr3() because now CR3 is restored in resumectx().

amd64:
- Add suspend/resume related members (such as MSR) in PCB.
- Modify savectx() for above new PCB members.
- Merge acpi_switch.S into cpu_switch.S as resumectx().

i386:
- Merge(and remove) suspendctx() into savectx() in order to match with
  amd64 code.

Reviewed by:	attilio@, acpi@

1 files changed, 13 insertions, 1 deletions

diff --git a/sys/amd64/include/pcb.h b/sys/amd64/include/pcb.h
index 70b2e62..619fba5 100644
--- a/sys/amd64/include/pcb.h
+++ b/sys/amd64/include/pcb.h
@@ -91,9 +91,20 @@ struct pcb {
 	/* local tss, with i/o bitmap; NULL for common */
 	struct amd64tss *pcb_tssp;
 
+	/* model specific registers */
+	register_t	pcb_efer;
+	register_t	pcb_star;
+	register_t	pcb_lstar;
+	register_t	pcb_cstar;
+	register_t	pcb_sfmask;
+	register_t	pcb_xsmask;
+
+	/* fpu context for suspend/resume */
+	void *		pcb_fpususpend;
+
 	struct savefpu	*pcb_save;
 
-	uint64_t	pcb_pad[2];
+	uint64_t	pcb_pad[3];
 };
 
 #ifdef _KERNEL
@@ -131,6 +142,7 @@ clear_pcb_flags(struct pcb *pcb, const u_int flags)
 
 void	makectx(struct trapframe *, struct pcb *);
 int	savectx(struct pcb *) __returns_twice;
+void	resumectx(struct pcb *);
 
 #endif