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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/include/asm/mmu.h | |
| parent | Initial commit. (diff) | |
| download | linux-upstream.tar.xz linux-upstream.zip | |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/include/asm/mmu.h')
| -rw-r--r-- | arch/arm/include/asm/mmu.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h new file mode 100644 index 000000000..e04972384 --- /dev/null +++ b/arch/arm/include/asm/mmu.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ARM_MMU_H +#define __ARM_MMU_H + +#ifdef CONFIG_MMU + +typedef struct { +#ifdef CONFIG_CPU_HAS_ASID + atomic64_t id; +#else + int switch_pending; +#endif + atomic_t vmalloc_seq; + unsigned long sigpage; +#ifdef CONFIG_VDSO + unsigned long vdso; +#endif +#ifdef CONFIG_BINFMT_ELF_FDPIC + unsigned long exec_fdpic_loadmap; + unsigned long interp_fdpic_loadmap; +#endif +} mm_context_t; + +#ifdef CONFIG_CPU_HAS_ASID +#define ASID_BITS 8 +#define ASID_MASK ((~0ULL) << ASID_BITS) +#define ASID(mm) ((unsigned int)((mm)->context.id.counter & ~ASID_MASK)) +#else +#define ASID(mm) (0) +#endif + +#else + +/* + * From nommu.h: + * Copyright (C) 2002, David McCullough <davidm@snapgear.com> + * modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com> + */ +typedef struct { + unsigned long end_brk; +#ifdef CONFIG_BINFMT_ELF_FDPIC + unsigned long exec_fdpic_loadmap; + unsigned long interp_fdpic_loadmap; +#endif +} mm_context_t; + +#endif + +#endif |