diff options
Diffstat (limited to 'arch/powerpc/include/asm/mman.h')
| -rw-r--r-- | arch/powerpc/include/asm/mman.h | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h index 30922f699341..912f78a956a1 100644 --- a/arch/powerpc/include/asm/mman.h +++ b/arch/powerpc/include/asm/mman.h @@ -1,46 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef _ASM_POWERPC_MMAN_H #define _ASM_POWERPC_MMAN_H #include <uapi/asm/mman.h> -#ifdef CONFIG_PPC64 +#if defined(CONFIG_PPC64) && !defined(BUILD_VDSO) #include <asm/cputable.h> #include <linux/mm.h> +#include <linux/pkeys.h> #include <asm/cpu_has_feature.h> +#include <asm/firmware.h> -/* - * This file is included by linux/mman.h, so we can't use cacl_vm_prot_bits() - * here. How important is the optimization? - */ -static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot, +static inline vm_flags_t arch_calc_vm_prot_bits(unsigned long prot, unsigned long pkey) { - return (prot & PROT_SAO) ? VM_SAO : 0; +#ifdef CONFIG_PPC_MEM_KEYS + return (((prot & PROT_SAO) ? VM_SAO : 0) | pkey_to_vmflag_bits(pkey)); +#else + return ((prot & PROT_SAO) ? VM_SAO : 0); +#endif } #define arch_calc_vm_prot_bits(prot, pkey) arch_calc_vm_prot_bits(prot, pkey) -static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) -{ - return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0); -} -#define arch_vm_get_page_prot(vm_flags) arch_vm_get_page_prot(vm_flags) - -static inline bool arch_validate_prot(unsigned long prot) +static inline bool arch_validate_prot(unsigned long prot, unsigned long addr) { if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_SAO)) return false; - if ((prot & PROT_SAO) && !cpu_has_feature(CPU_FTR_SAO)) - return false; + if (prot & PROT_SAO) { + if (!cpu_has_feature(CPU_FTR_SAO)) + return false; + if (firmware_has_feature(FW_FEATURE_LPAR) && + !IS_ENABLED(CONFIG_PPC_PROT_SAO_LPAR)) + return false; + } return true; } -#define arch_validate_prot(prot) arch_validate_prot(prot) +#define arch_validate_prot arch_validate_prot #endif /* CONFIG_PPC64 */ #endif /* _ASM_POWERPC_MMAN_H */ |