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ARC: add hugetlb definitions

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Add hugetlb definitions if THP enabled. ARC doesn't support
HugeTLB FS but it supports THP. Some kernel code such as pagemap
uses hugetlb definitions with THP.

This patch fixes ARC build issue (HPAGE_SIZE undeclared error) with
TRANSPARENT_HUGEPAGE enabled.

Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
This commit is contained in:
Pavel Kozlov 2023-12-13 19:07:10 +04:00 committed by Vineet Gupta
parent 4eb69d00fe
commit 9a733dc4fb
1 changed files with 7 additions and 0 deletions
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7
arch/arc/include/asm/hugepage.h
View File

@ -10,6 +10,13 @@
#include <linux/types.h>
#include <asm-generic/pgtable-nopmd.h>
/*
* Hugetlb definitions.
*/
#define HPAGE_SHIFT PMD_SHIFT
#define HPAGE_SIZE (_AC(1, UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
static inline pte_t pmd_pte(pmd_t pmd)
{
return __pte(pmd_val(pmd));