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ARM: pgtable: provide RDONLY page table bit rather than WRITE bit

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King
2010-11-16 08:40:36 +00:00
parent 9522d7e4cb
commit 36bb94ba36
5 changed files with 41 additions and 42 deletions
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4
arch/arm/mm/proc-xscale.S
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@@ -500,8 +500,8 @@ ENTRY(cpu_xscale_set_pte_ext)
@
@ Erratum 40: must set memory to write-through for user read-only pages
@
and ip, r1, #(L_PTE_MT_MASK | L_PTE_USER | L_PTE_WRITE) & ~(4 << 2)
teq ip, #L_PTE_MT_WRITEBACK | L_PTE_USER
and ip, r1, #(L_PTE_MT_MASK | L_PTE_USER | L_PTE_RDONLY) & ~(4 << 2)
teq ip, #L_PTE_MT_WRITEBACK | L_PTE_USER | L_PTE_RDONLY
moveq r1, #L_PTE_MT_WRITETHROUGH
and r1, r1, #L_PTE_MT_MASK