diff options
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/book3s64/pgtable.c | 17 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 6 |
2 files changed, 19 insertions, 4 deletions
diff --git a/arch/powerpc/mm/book3s64/pgtable.c b/arch/powerpc/mm/book3s64/pgtable.c index 071bb66c3ad9..7b9966402b25 100644 --- a/arch/powerpc/mm/book3s64/pgtable.c +++ b/arch/powerpc/mm/book3s64/pgtable.c @@ -7,6 +7,7 @@ #include <linux/mm_types.h> #include <linux/memblock.h> #include <linux/memremap.h> +#include <linux/pkeys.h> #include <linux/debugfs.h> #include <misc/cxl-base.h> @@ -549,3 +550,19 @@ unsigned long memremap_compat_align(void) } EXPORT_SYMBOL_GPL(memremap_compat_align); #endif + +pgprot_t vm_get_page_prot(unsigned long vm_flags) +{ + unsigned long prot = pgprot_val(protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]); + + if (vm_flags & VM_SAO) + prot |= _PAGE_SAO; + +#ifdef CONFIG_PPC_MEM_KEYS + prot |= vmflag_to_pte_pkey_bits(vm_flags); +#endif + + return __pgprot(prot); +} +EXPORT_SYMBOL(vm_get_page_prot); diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 09b7b5e7bb9a..52b77684acda 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -17,6 +17,7 @@ #include <linux/suspend.h> #include <linux/dma-direct.h> +#include <asm/swiotlb.h> #include <asm/machdep.h> #include <asm/rtas.h> #include <asm/kasan.h> @@ -250,10 +251,7 @@ void __init mem_init(void) * back to to-down. */ memblock_set_bottom_up(true); - if (is_secure_guest()) - svm_swiotlb_init(); - else - swiotlb_init(0); + swiotlb_init(ppc_swiotlb_enable, ppc_swiotlb_flags); #endif high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); |