[POWERPC] pseries: phyp dump: Invalidate and print dump areas

This adds routines to
a. invalidate dump
b. calculate region that is reserved and needs to be freed.  This is
   exported through sysfs interface.

Unregister has been removed for now as it wasn't being used.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/asm-powerpc/phyp_dump.h b/include/asm-powerpc/phyp_dump.h
index e2d988dcdc99..b454de45b2ca 100644
--- a/include/asm-powerpc/phyp_dump.h
+++ b/include/asm-powerpc/phyp_dump.h
@@ -30,6 +30,9 @@ struct phyp_dump {
         /* store cpu & hpte size */
         unsigned long cpu_state_size;
         unsigned long hpte_region_size;
+        /* previous scratch area values */
+        unsigned long reserved_scratch_addr;
+        unsigned long reserved_scratch_size;
 };
 
 extern struct phyp_dump *phyp_dump_info;