mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 05:03:52 +07:00
4155b8e0a7
If an architecure uses <asm-generic/4level-fixup.h>, build fails if we
try to use PUD_SHIFT in generic code:
In file included from arch/microblaze/include/asm/bug.h:1:0,
from include/linux/bug.h:4,
from include/linux/thread_info.h:11,
from include/asm-generic/preempt.h:4,
from arch/microblaze/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:18,
from include/linux/spinlock.h:50,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/slab.h:14,
from mm/mmap.c:12:
mm/mmap.c: In function 'exit_mmap':
>> mm/mmap.c:2858:46: error: 'PUD_SHIFT' undeclared (first use in this function)
round_up(FIRST_USER_ADDRESS, PUD_SIZE) >> PUD_SHIFT);
^
include/asm-generic/bug.h:86:25: note: in definition of macro 'WARN_ON'
int __ret_warn_on = !!(condition); \
^
mm/mmap.c:2858:46: note: each undeclared identifier is reported only once for each function it appears in
round_up(FIRST_USER_ADDRESS, PUD_SIZE) >> PUD_SHIFT);
^
include/asm-generic/bug.h:86:25: note: in definition of macro 'WARN_ON'
int __ret_warn_on = !!(condition); \
^
As with <asm-generic/pgtable-nopud.h>, let's define PUD_SHIFT to
PGDIR_SHIFT.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
#ifndef _4LEVEL_FIXUP_H
|
|
#define _4LEVEL_FIXUP_H
|
|
|
|
#define __ARCH_HAS_4LEVEL_HACK
|
|
#define __PAGETABLE_PUD_FOLDED
|
|
|
|
#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_alloc(mm, pgd, address) (pgd)
|
|
#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)
|
|
|
|
#endif
|