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Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/pte-book3e.h | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/arch/powerpc/include/asm/nohash/pte-book3e.h b/arch/powerpc/include/asm/nohash/pte-book3e.h deleted file mode 100644 index f798640422c2..000000000000 --- a/arch/powerpc/include/asm/nohash/pte-book3e.h +++ /dev/null @@ -1,129 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_POWERPC_NOHASH_PTE_BOOK3E_H -#define _ASM_POWERPC_NOHASH_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_SW1 0x000002 -#define _PAGE_BIT_SWAP_TYPE 2 -#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_SX | _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_PRIVILEGED (_PAGE_BAP_SR) - -#define _PAGE_SPECIAL _PAGE_SW0 - -/* Base page size */ -#define _PAGE_PSIZE _PAGE_PSIZE_4K -#define PTE_RPN_SHIFT (24) - -#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) -#define _PMD_USER 0 -#else -#define _PTE_NONE_MASK 0 -#endif - -/* - * We define 2 sets of base prot bits, one for basic pages (ie, - * cacheable kernel and user pages) and one for non cacheable - * 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) -#if defined(CONFIG_SMP) -#define _PAGE_BASE (_PAGE_BASE_NC | _PAGE_COHERENT) -#else -#define _PAGE_BASE (_PAGE_BASE_NC) -#endif - -/* Permission masks used to generate the __P and __S table */ -#define PAGE_NONE __pgprot(_PAGE_BASE) -#define PAGE_SHARED __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RW) -#define PAGE_SHARED_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RW | _PAGE_BAP_UX) -#define PAGE_COPY __pgprot(_PAGE_BASE | _PAGE_USER) -#define PAGE_COPY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_BAP_UX) -#define PAGE_READONLY __pgprot(_PAGE_BASE | _PAGE_USER) -#define PAGE_READONLY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_BAP_UX) - -#ifndef __ASSEMBLY__ -static inline pte_t pte_mkprivileged(pte_t pte) -{ - return __pte((pte_val(pte) & ~_PAGE_USER) | _PAGE_PRIVILEGED); -} - -#define pte_mkprivileged pte_mkprivileged - -static inline pte_t pte_mkuser(pte_t pte) -{ - return __pte((pte_val(pte) & ~_PAGE_PRIVILEGED) | _PAGE_USER); -} - -#define pte_mkuser pte_mkuser - -static inline pte_t pte_mkexec(pte_t pte) -{ - if (pte_val(pte) & _PAGE_BAP_UR) - return __pte((pte_val(pte) & ~_PAGE_BAP_SX) | _PAGE_BAP_UX); - else - return __pte((pte_val(pte) & ~_PAGE_BAP_UX) | _PAGE_BAP_SX); -} -#define pte_mkexec pte_mkexec - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_NOHASH_PTE_BOOK3E_H */ |