pgtable.h (d85ddd1318e66c0c2665dbfcbc21a8b66c9152aa) pgtable.h (12564485ed8caac3c18572793ec01330792c7191)
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
3#define _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
4
5#include <asm-generic/pgtable-nop4d.h>
6
7#ifndef __ASSEMBLY__
8#include <linux/mmdebug.h>

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15#define _PAGE_BIT_SWAP_TYPE 0
16
17#define _PAGE_EXEC 0x00001 /* execute permission */
18#define _PAGE_WRITE 0x00002 /* write access allowed */
19#define _PAGE_READ 0x00004 /* read access allowed */
20#define _PAGE_RW (_PAGE_READ | _PAGE_WRITE)
21#define _PAGE_RWX (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC)
22#define _PAGE_PRIVILEGED 0x00008 /* kernel access only */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
3#define _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
4
5#include <asm-generic/pgtable-nop4d.h>
6
7#ifndef __ASSEMBLY__
8#include <linux/mmdebug.h>

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15#define _PAGE_BIT_SWAP_TYPE 0
16
17#define _PAGE_EXEC 0x00001 /* execute permission */
18#define _PAGE_WRITE 0x00002 /* write access allowed */
19#define _PAGE_READ 0x00004 /* read access allowed */
20#define _PAGE_RW (_PAGE_READ | _PAGE_WRITE)
21#define _PAGE_RWX (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC)
22#define _PAGE_PRIVILEGED 0x00008 /* kernel access only */
23
24#define _PAGE_CACHE_CTL 0x00030 /* Bits for the folowing cache modes */
25 /* No bits set is normal cacheable memory */
26 /* 0x00010 unused, is SAO bit on radix POWER9 */
23#define _PAGE_SAO 0x00010 /* Strong access order */
27#define _PAGE_NON_IDEMPOTENT 0x00020 /* non idempotent memory */
28#define _PAGE_TOLERANT 0x00030 /* tolerant memory, cache inhibited */
24#define _PAGE_NON_IDEMPOTENT 0x00020 /* non idempotent memory */
25#define _PAGE_TOLERANT 0x00030 /* tolerant memory, cache inhibited */
29
30#define _PAGE_DIRTY 0x00080 /* C: page changed */
31#define _PAGE_ACCESSED 0x00100 /* R: page referenced */
32/*
33 * Software bits
34 */
35#define _RPAGE_SW0 0x2000000000000000UL
36#define _RPAGE_SW1 0x00800
37#define _RPAGE_SW2 0x00400

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823static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
824 pte_t *ptep, pte_t pte, int percpu)
825{
826 if (radix_enabled())
827 return radix__set_pte_at(mm, addr, ptep, pte, percpu);
828 return hash__set_pte_at(mm, addr, ptep, pte, percpu);
829}
830
26#define _PAGE_DIRTY 0x00080 /* C: page changed */
27#define _PAGE_ACCESSED 0x00100 /* R: page referenced */
28/*
29 * Software bits
30 */
31#define _RPAGE_SW0 0x2000000000000000UL
32#define _RPAGE_SW1 0x00800
33#define _RPAGE_SW2 0x00400

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819static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
820 pte_t *ptep, pte_t pte, int percpu)
821{
822 if (radix_enabled())
823 return radix__set_pte_at(mm, addr, ptep, pte, percpu);
824 return hash__set_pte_at(mm, addr, ptep, pte, percpu);
825}
826
827#define _PAGE_CACHE_CTL (_PAGE_SAO | _PAGE_NON_IDEMPOTENT | _PAGE_TOLERANT)
828
831#define pgprot_noncached pgprot_noncached
832static inline pgprot_t pgprot_noncached(pgprot_t prot)
833{
834 return __pgprot((pgprot_val(prot) & ~_PAGE_CACHE_CTL) |
835 _PAGE_NON_IDEMPOTENT);
836}
837
838#define pgprot_noncached_wc pgprot_noncached_wc

--- 531 unchanged lines hidden --- 		829#define pgprot_noncached pgprot_noncached
830static inline pgprot_t pgprot_noncached(pgprot_t prot)
831{
832 return __pgprot((pgprot_val(prot) & ~_PAGE_CACHE_CTL) |
833 _PAGE_NON_IDEMPOTENT);
834}
835
836#define pgprot_noncached_wc pgprot_noncached_wc

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