* [PATCH] MIPS: Handle huge pages with 64KB base page size.
@ 2012-05-04 18:09 David Daney
0 siblings, 0 replies; only message in thread
From: David Daney @ 2012-05-04 18:09 UTC (permalink / raw)
To: linux-mips, ralf; +Cc: David Daney
From: David Daney <david.daney@cavium.com>
When using sparsemem, we need to adjust some constants as the
resulting huge pages are 512MB in size.
Signed-off-by: David Daney <david.daney@cavium.com>
---
arch/mips/Kconfig | 10 ++++++----
arch/mips/include/asm/sparsemem.h | 6 +++++-
2 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3134457..e588610 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1789,10 +1789,12 @@ endchoice
config FORCE_MAX_ZONEORDER
int "Maximum zone order"
- range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
- default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
- range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
- default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
+ range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
+ default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
+ range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
+ default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
+ range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
+ default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
range 11 64
default "11"
help
diff --git a/arch/mips/include/asm/sparsemem.h b/arch/mips/include/asm/sparsemem.h
index 7165333..4461198 100644
--- a/arch/mips/include/asm/sparsemem.h
+++ b/arch/mips/include/asm/sparsemem.h
@@ -6,7 +6,11 @@
* SECTION_SIZE_BITS 2^N: how big each section will be
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
-#define SECTION_SIZE_BITS 28
+#if defined(CONFIG_HUGETLB_PAGE) && defined(CONFIG_PAGE_SIZE_64KB)
+# define SECTION_SIZE_BITS 29
+#else
+# define SECTION_SIZE_BITS 28
+#endif
#define MAX_PHYSMEM_BITS 35
#endif /* CONFIG_SPARSEMEM */
--
1.7.2.3
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2012-05-04 18:09 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-05-04 18:09 [PATCH] MIPS: Handle huge pages with 64KB base page size David Daney
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.