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#ifndef _ASM_POWERPC_PTE_BOOK3E_H #define _ASM_POWERPC_PTE_BOOK3E_H #ifdef __KERNEL__ /* PTE bit definitions for processors compliant to the Book3E * architecture 2.06 or later. The position of the PTE bits * matches the HW definition of the optional Embedded Page Table * category. */ /* Architected bits */ #define _PAGE_PRESENT 0x000001 /* software: pte contains a translation */ #define _PAGE_FILE 0x000002 /* (!present only) software: pte holds file offset */ #define _PAGE_SW1 0x000002 #define _PAGE_BAP_SR 0x000004 #define _PAGE_BAP_UR 0x000008 #define _PAGE_BAP_SW 0x000010 #define _PAGE_BAP_UW 0x000020 #define _PAGE_BAP_SX 0x000040 #define _PAGE_BAP_UX 0x000080 #define _PAGE_PSIZE_MSK 0x000f00 #define _PAGE_PSIZE_4K 0x000200 #define _PAGE_PSIZE_8K 0x000300 #define _PAGE_PSIZE_16K 0x000400 #define _PAGE_PSIZE_32K 0x000500 #define _PAGE_PSIZE_64K 0x000600 #define _PAGE_PSIZE_128K 0x000700 #define _PAGE_PSIZE_256K 0x000800 #define _PAGE_PSIZE_512K 0x000900 #define _PAGE_PSIZE_1M 0x000a00 #define _PAGE_PSIZE_2M 0x000b00 #define _PAGE_PSIZE_4M 0x000c00 #define _PAGE_PSIZE_8M 0x000d00 #define _PAGE_PSIZE_16M 0x000e00 #define _PAGE_PSIZE_32M 0x000f00 #define _PAGE_DIRTY 0x001000 /* C: page changed */ #define _PAGE_SW0 0x002000 #define _PAGE_U3 0x004000 #define _PAGE_U2 0x008000 #define _PAGE_U1 0x010000 #define _PAGE_U0 0x020000 #define _PAGE_ACCESSED 0x040000 #define _PAGE_ENDIAN 0x080000 #define _PAGE_GUARDED 0x100000 #define _PAGE_COHERENT 0x200000 /* M: enforce memory coherence */ #define _PAGE_NO_CACHE 0x400000 /* I: cache inhibit */ #define _PAGE_WRITETHRU 0x800000 /* W: cache write-through */ /* "Higher level" linux bit combinations */ #define _PAGE_EXEC _PAGE_BAP_UX /* .. and was cache cleaned */ #define _PAGE_RW (_PAGE_BAP_SW | _PAGE_BAP_UW) /* User write permission */ #define _PAGE_KERNEL_RW (_PAGE_BAP_SW | _PAGE_BAP_SR | _PAGE_DIRTY) #define _PAGE_KERNEL_RO (_PAGE_BAP_SR) #define _PAGE_KERNEL_RWX (_PAGE_BAP_SW | _PAGE_BAP_SR | _PAGE_DIRTY | _PAGE_BAP_SX) #define _PAGE_KERNEL_ROX (_PAGE_BAP_SR | _PAGE_BAP_SX) #define _PAGE_USER (_PAGE_BAP_UR | _PAGE_BAP_SR) /* Can be read */ #define _PAGE_HASHPTE 0 #define _PAGE_BUSY 0 #define _PAGE_SPECIAL _PAGE_SW0 /* Flags to be preserved on PTE modifications */ #define _PAGE_HPTEFLAGS _PAGE_BUSY /* Base page size */ #ifdef CONFIG_PPC_64K_PAGES #define _PAGE_PSIZE _PAGE_PSIZE_64K #define PTE_RPN_SHIFT (28) #else #define _PAGE_PSIZE _PAGE_PSIZE_4K #define PTE_RPN_SHIFT (24) #endif #define PTE_WIMGE_SHIFT (19) #define PTE_BAP_SHIFT (2) /* On 32-bit, we never clear the top part of the PTE */ #ifdef CONFIG_PPC32 #define _PTE_NONE_MASK 0xffffffff00000000ULL #define _PMD_PRESENT 0 #define _PMD_PRESENT_MASK (PAGE_MASK) #define _PMD_BAD (~PAGE_MASK) #endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_PTE_FSL_BOOKE_H */