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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /include/asm-generic/4level-fixup.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/asm-generic/4level-fixup.h')
| -rw-r--r-- | include/asm-generic/4level-fixup.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h new file mode 100644 index 000000000..e3667c9a3 --- /dev/null +++ b/include/asm-generic/4level-fixup.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _4LEVEL_FIXUP_H +#define _4LEVEL_FIXUP_H + +#define __ARCH_HAS_4LEVEL_HACK +#define __PAGETABLE_PUD_FOLDED 1 + +#define PUD_SHIFT PGDIR_SHIFT +#define PUD_SIZE PGDIR_SIZE +#define PUD_MASK PGDIR_MASK +#define PTRS_PER_PUD 1 + +#define pud_t pgd_t + +#define pmd_alloc(mm, pud, address) \ + ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \ + NULL: pmd_offset(pud, address)) + +#define pud_offset(pgd, start) (pgd) +#define pud_none(pud) 0 +#define pud_bad(pud) 0 +#define pud_present(pud) 1 +#define pud_ERROR(pud) do { } while (0) +#define pud_clear(pud) pgd_clear(pud) +#define pud_val(pud) pgd_val(pud) +#define pud_populate(mm, pud, pmd) pgd_populate(mm, pud, pmd) +#define pud_page(pud) pgd_page(pud) +#define pud_page_vaddr(pud) pgd_page_vaddr(pud) + +#undef pud_free_tlb +#define pud_free_tlb(tlb, x, addr) do { } while (0) +#define pud_free(mm, x) do { } while (0) +#define __pud_free_tlb(tlb, x, addr) do { } while (0) + +#undef pud_addr_end +#define pud_addr_end(addr, end) (end) + +#include <asm-generic/5level-fixup.h> + +#endif |