diff options
Diffstat (limited to 'arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h b/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h new file mode 100644 index 000000000..d1ee24e9e --- /dev/null +++ b/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_POWERPC_NOHASH_32_PTE_FSL_BOOKE_H +#define _ASM_POWERPC_NOHASH_32_PTE_FSL_BOOKE_H +#ifdef __KERNEL__ + +/* PTE bit definitions for Freescale BookE SW loaded TLB MMU based + * processors + * + MMU Assist Register 3: + + 32 33 34 35 36 ... 50 51 52 53 54 55 56 57 58 59 60 61 62 63 + RPN...................... 0 0 U0 U1 U2 U3 UX SX UW SW UR SR + + - PRESENT *must* be in the bottom three bits because swap cache + entries use the top 29 bits. + +*/ + +/* Definitions for FSL Book-E Cores */ +#define _PAGE_PRESENT 0x00001 /* S: PTE contains a translation */ +#define _PAGE_USER 0x00002 /* S: User page (maps to UR) */ +#define _PAGE_RW 0x00004 /* S: Write permission (SW) */ +#define _PAGE_DIRTY 0x00008 /* S: Page dirty */ +#define _PAGE_EXEC 0x00010 /* H: SX permission */ +#define _PAGE_ACCESSED 0x00020 /* S: Page referenced */ + +#define _PAGE_ENDIAN 0x00040 /* H: E bit */ +#define _PAGE_GUARDED 0x00080 /* H: G bit */ +#define _PAGE_COHERENT 0x00100 /* H: M bit */ +#define _PAGE_NO_CACHE 0x00200 /* H: I bit */ +#define _PAGE_WRITETHRU 0x00400 /* H: W bit */ +#define _PAGE_SPECIAL 0x00800 /* S: Special page */ + +#define _PMD_PRESENT 0 +#define _PMD_PRESENT_MASK (PAGE_MASK) +#define _PMD_BAD (~PAGE_MASK) + +#define PTE_WIMGE_SHIFT (6) + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_NOHASH_32_PTE_FSL_BOOKE_H */ |