diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-09 13:52:00 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-14 18:04:09 +1100 |
| commit | 093d7ca22920c79ecdda87614ac4c5e3786068d6 (patch) | |
| tree | 8e0864a7419cf471d352566705f8692eeb0016d9 /arch | |
| parent | 97026b5a5ac26541b3d294146f5c941491a9e609 (diff) | |
| download | linux-093d7ca22920c79ecdda87614ac4c5e3786068d6.tar.gz linux-093d7ca22920c79ecdda87614ac4c5e3786068d6.tar.bz2 linux-093d7ca22920c79ecdda87614ac4c5e3786068d6.zip | |
powerpc/mm: drop unused page flags
The following page flags in pte-common.h can be dropped:
_PAGE_ENDIAN is only used in mm/fsl_booke_mmu.c and is defined in
asm/nohash/32/pte-fsl-booke.h
_PAGE_4K_PFN is nowhere defined nor used
_PAGE_READ, _PAGE_WRITE and _PAGE_PTE are only defined and used
in book3s/64
The following page flags in book3s/64/pgtable.h can be dropped as
they are not used on this platform nor by common code.
_PAGE_NA, _PAGE_RO, _PAGE_USER and _PAGE_PSIZE
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable.h | 10 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pte-common.h | 17 |
2 files changed, 2 insertions, 25 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 28a15c3450ff..a4d525a6e2bc 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -14,10 +14,6 @@ */ #define _PAGE_BIT_SWAP_TYPE 0 -#define _PAGE_NA 0 -#define _PAGE_RO 0 -#define _PAGE_USER 0 - #define _PAGE_EXEC 0x00001 /* execute permission */ #define _PAGE_WRITE 0x00002 /* write access allowed */ #define _PAGE_READ 0x00004 /* read access allowed */ @@ -123,10 +119,6 @@ #define _PAGE_KERNEL_RWX (_PAGE_PRIVILEGED | _PAGE_DIRTY | \ _PAGE_RW | _PAGE_EXEC) /* - * No page size encoding in the linux PTE - */ -#define _PAGE_PSIZE 0 -/* * _PAGE_CHG_MASK masks of bits that are to be preserved across * pgprot changes */ @@ -149,7 +141,7 @@ * pages. We always set _PAGE_COHERENT when SMP is enabled or * the processor might need it for DMA coherency. */ -#define _PAGE_BASE_NC (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_PSIZE) +#define _PAGE_BASE_NC (_PAGE_PRESENT | _PAGE_ACCESSED) #define _PAGE_BASE (_PAGE_BASE_NC) /* Permission masks used to generate the __P and __S table, diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h index bef56141a549..5a5ba43bdf98 100644 --- a/arch/powerpc/include/asm/pte-common.h +++ b/arch/powerpc/include/asm/pte-common.h @@ -14,18 +14,12 @@ #ifndef _PAGE_EXEC #define _PAGE_EXEC 0 #endif -#ifndef _PAGE_ENDIAN -#define _PAGE_ENDIAN 0 -#endif #ifndef _PAGE_COHERENT #define _PAGE_COHERENT 0 #endif #ifndef _PAGE_WRITETHRU #define _PAGE_WRITETHRU 0 #endif -#ifndef _PAGE_4K_PFN -#define _PAGE_4K_PFN 0 -#endif #ifndef _PAGE_SAO #define _PAGE_SAO 0 #endif @@ -39,9 +33,6 @@ #define _PAGE_RW 0 #endif -#ifndef _PAGE_PTE -#define _PAGE_PTE 0 -#endif /* At least one of _PAGE_PRIVILEGED or _PAGE_USER must be defined */ #ifndef _PAGE_PRIVILEGED #define _PAGE_PRIVILEGED 0 @@ -122,7 +113,7 @@ static inline bool pte_user(pte_t pte) /* Mask of bits returned by pte_pgprot() */ #define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \ - _PAGE_WRITETHRU | _PAGE_ENDIAN | _PAGE_4K_PFN | \ + _PAGE_WRITETHRU | \ _PAGE_USER | _PAGE_ACCESSED | _PAGE_RO | _PAGE_NA | \ _PAGE_PRIVILEGED | \ _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | _PAGE_EXEC) @@ -208,12 +199,6 @@ static inline bool pte_user(pte_t pte) #define PAGE_AGP (PAGE_KERNEL_NC) #define HAVE_PAGE_AGP -#ifndef _PAGE_READ -/* if not defined, we should not find _PAGE_WRITE too */ -#define _PAGE_READ 0 -#define _PAGE_WRITE _PAGE_RW -#endif - #ifndef H_PAGE_4K_PFN #define H_PAGE_4K_PFN 0 #endif |