sparc64: Add 64K page size support
This patch depends on:
[v6] sparc64: Multi-page size support
- Testing
Tested on Sonoma by running stream benchmark instance which allocated
48G worth of 64K pages.
boot params: default_hugepagesz=64K hugepagesz=64K hugepages=1310720
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index d76f38d..f294dd4 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -18,6 +18,7 @@
#define HPAGE_SHIFT 23
#define REAL_HPAGE_SHIFT 22
#define HPAGE_256MB_SHIFT 28
+#define HPAGE_64K_SHIFT 16
#define REAL_HPAGE_SIZE (_AC(1,UL) << REAL_HPAGE_SHIFT)
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
@@ -26,7 +27,7 @@
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#define REAL_HPAGE_PER_HPAGE (_AC(1,UL) << (HPAGE_SHIFT - REAL_HPAGE_SHIFT))
-#define HUGE_MAX_HSTATE 2
+#define HUGE_MAX_HSTATE 3
#endif
#ifndef __ASSEMBLY__