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Commit 11e1ed6e authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Stub out legacy PCC pgprot encoding for X2 TLBs. 



Presently it's still possible to reference the PAGE_KERNEL_PCC pgprot
encoding on X2 TLBs which simply don't support it at all. Convert this
over to follow the nommu behaviour and simply hand back an invalid pgprot
value so we error out properly.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent c81fc389

arch/sh/include/asm/pgtable_32.h

+1 −7
Original line number Diff line number Diff line
@@ -231,13 +231,7 @@ static inline unsigned long copy_ptea_attributes(unsigned long x) 
					   _PAGE_EXT_KERN_EXEC))



#define PAGE_KERNEL_PCC(slot, type) \

			__pgprot(_PAGE_PRESENT | _PAGE_DIRTY | \

				 _PAGE_ACCESSED | _PAGE_FLAGS_HARD | \

				 _PAGE_EXT(_PAGE_EXT_KERN_READ | \

					   _PAGE_EXT_KERN_WRITE | \

					   _PAGE_EXT_KERN_EXEC) \

				 (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) | \

				 (type))

			__pgprot(0)



#elif defined(CONFIG_MMU) /* SH-X TLB */

#define PAGE_NONE	__pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE | \