diff mbox series

[v2,08/14] arm64, trans_table: add PUD_SECT_RDONLY

Message ID 20190817024629.26611-9-pasha.tatashin@soleen.com (mailing list archive)
State New, archived
Headers show
Series arm64: MMU enabled kexec relocation | expand

Commit Message

Pasha Tatashin Aug. 17, 2019, 2:46 a.m. UTC
There is PMD_SECT_RDONLY that is used in pud_* function which is confusing.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
---
 arch/arm64/include/asm/pgtable-hwdef.h | 1 +
 arch/arm64/mm/trans_table.c            | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index db92950bb1a0..dcb4f13c7888 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -110,6 +110,7 @@ 
 #define PUD_TABLE_BIT		(_AT(pudval_t, 1) << 1)
 #define PUD_TYPE_MASK		(_AT(pudval_t, 3) << 0)
 #define PUD_TYPE_SECT		(_AT(pudval_t, 1) << 0)
+#define PUD_SECT_RDONLY		(_AT(pudval_t, 1) << 7)		/* AP[2] */
 
 /*
  * Level 2 descriptor (PMD).
diff --git a/arch/arm64/mm/trans_table.c b/arch/arm64/mm/trans_table.c
index 634293ffb54c..815e40bb1316 100644
--- a/arch/arm64/mm/trans_table.c
+++ b/arch/arm64/mm/trans_table.c
@@ -138,7 +138,7 @@  static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
 				return -ENOMEM;
 		} else {
 			set_pud(dst_pudp,
-				__pud(pud_val(pud) & ~PMD_SECT_RDONLY));
+				__pud(pud_val(pud) & ~PUD_SECT_RDONLY));
 		}
 	} while (dst_pudp++, src_pudp++, addr = next, addr != end);