svn commit: r335648 - head/sys/powerpc/include

[Justin Hibbits]

Author: jhibbits
Date: Mon Jun 25 22:05:33 2018
New Revision: 335648
URL: https://svnweb.freebsd.org/changeset/base/335648

Log:
  Expose stopped cpu contexts to ddb on PowerPC
  
  Summary: In r220638, stoppcbs started being tracked. This never got exposed to
  ddb though, so kdb_thr_ctx() didn't know how to look them up.
  
  This allows switching to threads on stopped CPUs in kdb.
  
  Submitted by:	Brandon Bergren <git_bdragon.rkt0.net>
  Differential Revision: https://reviews.freebsd.org/D15986

Modified:
  head/sys/powerpc/include/kdb.h
  head/sys/powerpc/include/smp.h

Modified: head/sys/powerpc/include/kdb.h
==============================================================================
--- head/sys/powerpc/include/kdb.h	Mon Jun 25 21:54:39 2018	(r335647)
+++ head/sys/powerpc/include/kdb.h	Mon Jun 25 22:05:33 2018	(r335648)
@@ -40,6 +40,8 @@
 void kdb_cpu_clear_singlestep(void);
 void kdb_cpu_set_singlestep(void);
 
+#define KDB_STOPPEDPCB(pc)      &stoppcbs[pc->pc_cpuid]
+
 static __inline void
 kdb_cpu_sync_icache(unsigned char *addr, size_t size)
 {

Modified: head/sys/powerpc/include/smp.h
==============================================================================
--- head/sys/powerpc/include/smp.h	Mon Jun 25 21:54:39 2018	(r335647)
+++ head/sys/powerpc/include/smp.h	Mon Jun 25 22:05:33 2018	(r335648)
@@ -42,6 +42,7 @@
 
 #ifndef LOCORE
 
+#include <machine/pcb.h>
 #include <sys/_cpuset.h>
 
 void	ipi_all_but_self(int ipi);
@@ -58,6 +59,8 @@ void	cpudep_ap_early_bootstrap(void);
 uintptr_t cpudep_ap_bootstrap(void);
 void	cpudep_ap_setup(void);
 void	machdep_ap_bootstrap(void);
+
+extern struct pcb stoppcbs[];
 
 #endif /* !LOCORE */
 #endif /* _KERNEL */