cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / x86_64-linux-gnu / asm / mman.h

diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/asm/mman.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/asm/mman.h
new file mode 100644 (file)
index 0000000..d4a8d04
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/asm/mman.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_MMAN_H
+#define _ASM_X86_MMAN_H
+
+#define MAP_32BIT      0x40            /* only give out 32bit addresses */
+
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+/*
+ * Take the 4 protection key bits out of the vma->vm_flags
+ * value and turn them in to the bits that we can put in
+ * to a pte.
+ *
+ * Only override these if Protection Keys are available
+ * (which is only on 64-bit).
+ */
+#define arch_vm_get_page_prot(vm_flags)        __pgprot(       \
+               ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) |     \
+               ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) |     \
+               ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) |     \
+               ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0))
+
+#define arch_calc_vm_prot_bits(prot, key) (            \
+               ((key) & 0x1 ? VM_PKEY_BIT0 : 0) |      \
+               ((key) & 0x2 ? VM_PKEY_BIT1 : 0) |      \
+               ((key) & 0x4 ? VM_PKEY_BIT2 : 0) |      \
+               ((key) & 0x8 ? VM_PKEY_BIT3 : 0))
+#endif
+
+#include <asm-generic/mman.h>
+
+#endif /* _ASM_X86_MMAN_H */