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MIPS: Flush huge TLB

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When flushing TLB, if @vma is backed by huge page, we could flush huge
TLB, due to that huge page is defined to be far from normal page.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: "Jayachandran C." <jayachandranc@netlogicmicro.com>
Patchwork: https://patchwork.linux-mips.org/patch/2825/
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/3114/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Hillf Danton
2012-01-11 15:37:13 +01:00
committed by Ralf Baechle
parent 8b5690f884
commit f467e4bfb5
2 changed files with 22 additions and 6 deletions
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8
arch/mips/include/asm/page.h
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@@ -38,6 +38,14 @@
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
#else /* !CONFIG_HUGETLB_PAGE */
# ifndef BUILD_BUG
# define BUILD_BUG() do { extern void __build_bug(void); __build_bug(); } while (0)
# endif
#define HPAGE_SHIFT ({BUILD_BUG(); 0; })
#define HPAGE_SIZE ({BUILD_BUG(); 0; })
#define HPAGE_MASK ({BUILD_BUG(); 0; })
#define HUGETLB_PAGE_ORDER ({BUILD_BUG(); 0; })
#endif /* CONFIG_HUGETLB_PAGE */
#ifndef __ASSEMBLY__