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[v3,22/34] unicore32: mm: Add p?d_large() definitions

Message ID 20190227170608.27963-23-steven.price@arm.com
State New, archived
Headers show
Series Convert x86 & arm64 to use generic page walk | expand

Commit Message

Steven Price Feb. 27, 2019, 5:05 p.m. UTC
walk_page_range() is going to be allowed to walk page tables other than
those of user space. For this it needs to know when it has reached a
'leaf' entry in the page tables. This information is provided by the
p?d_large() functions/macros.

For unicore32, we don't support large pages, so add a stub returning 0.

CC: Guan Xuetao <gxt@pku.edu.cn>
Signed-off-by: Steven Price <steven.price@arm.com>
---
 arch/unicore32/include/asm/pgtable.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/arch/unicore32/include/asm/pgtable.h b/arch/unicore32/include/asm/pgtable.h
index a4f2bef37e70..b45429df8b99 100644
--- a/arch/unicore32/include/asm/pgtable.h
+++ b/arch/unicore32/include/asm/pgtable.h
@@ -209,6 +209,7 @@  static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
 #define pmd_bad(pmd)		(((pmd_val(pmd) &		\
 				(PMD_PRESENT | PMD_TYPE_MASK))	\
 				!= (PMD_PRESENT | PMD_TYPE_TABLE)))
+#define pmd_large(pmd)		(0)
 
 #define set_pmd(pmdpd, pmdval)		\
 	do {				\