[SRU][Trusty][PATCH v2 2/7] x86/asm: Move PUD_PAGE macros to page_types.h

Juerg Haefliger juerg.haefliger at canonical.com
Thu Aug 30 12:52:34 UTC 2018

From: Toshi Kani <toshi.kani at hpe.com>

PUD_SHIFT is defined according to a given kernel configuration, which
allows it be commonly used by any x86 kernels.  However, PUD_PAGE_SIZE
and PUD_PAGE_MASK, which are set from PUD_SHIFT, are defined in
page_64_types.h, which can be used by 64-bit kernel only.

Move PUD_PAGE_SIZE and PUD_PAGE_MASK to page_types.h so that they can
be used by any x86 kernels as well.

Signed-off-by: Toshi Kani <toshi.kani at hpe.com>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: Juergen Gross <jgross at suse.com>
Cc: H. Peter Anvin <hpa at zytor.com>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: Borislav Petkov <bp at alien8.de>
Cc: Konrad Wilk <konrad.wilk at oracle.com>
Cc: Robert Elliot <elliott at hpe.com>
Cc: linux-mm at kvack.org
Link: http://lkml.kernel.org/r/1442514264-12475-3-git-send-email-toshi.kani@hpe.com
Signed-off-by: Thomas Gleixner <tglx at linutronix.de>


(cherry picked from commit 832102671855f73962e7a04fdafd48b9385ea5c6)
Signed-off-by: Juerg Haefliger <juergh at canonical.com>
 arch/x86/include/asm/page_64_types.h | 3 ---
 arch/x86/include/asm/page_types.h    | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index d1d2972a54db..50ef295d430a 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -20,9 +20,6 @@
 #define MCE_STACK 4
 #define N_EXCEPTION_STACKS 4  /* hw limit: 7 */
-#define PUD_PAGE_SIZE		(_AC(1, UL) << PUD_SHIFT)
-#define PUD_PAGE_MASK		(~(PUD_PAGE_SIZE-1))
  * Set __PAGE_OFFSET to the most negative possible address +
  * PGDIR_SIZE*16 (pgd slot 272).  The gap is to allow a space for a
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index 663ce4984f3f..80678a8775c2 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -25,6 +25,9 @@
+#define PUD_PAGE_SIZE		(_AC(1, UL) << PUD_SHIFT)
+#define PUD_PAGE_MASK		(~(PUD_PAGE_SIZE-1))
 #define HPAGE_SIZE		(_AC(1,UL) << HPAGE_SHIFT)
 #define HPAGE_MASK		(~(HPAGE_SIZE - 1))

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