diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2022-07-03 16:11:50 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-18 02:14:41 +0200 |
| commit | a008a3004340887370aea38b5cd441b1db110041 (patch) | |
| tree | b30347bb24dc4d5772f641d836bfd69a2cfa4872 /arch/csky/include | |
| parent | mm/mmap: drop ARCH_HAS_VM_GET_PAGE_PROT (diff) | |
| download | linux-a008a3004340887370aea38b5cd441b1db110041.tar.xz linux-a008a3004340887370aea38b5cd441b1db110041.zip | |
csky: drop definition of PTE_ORDER
Patch series "arch: make PxD_ORDER generically available", v2.
The question what does PxD_ORDER define raises from time to time and
there is still a conflict between MIPS and DAX definitions.
Some time ago Matthew Wilcox suggested to use PMD_TABLE_ORDER to define
the order of page table allocation:
[1] https://lore.kernel.org/linux-arch/YPCJftSTUBEnq2lI@casper.infradead.org/
The parisc patch made it in, but mips didn't.
Now mips defines from asm/include/pgtable.h were copied to loongarch which
made it worse.
Let's deal with it once and for all and rename PxD_ORDER defines to
PxD_TABLE_ORDER or just drop them when the only possible order of page
table is 0.
This patch (of 15):
This is the order of the page table allocation, not the order of a PTE.
Since its always hardwired to 0, simply drop it.
Link: https://lkml.kernel.org/r/20220705154708.181258-1-rppt@kernel.org
Link: https://lkml.kernel.org/r/20220703141203.147893-1-rppt@kernel.org
Link: https://lkml.kernel.org/r/20220703141203.147893-2-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Xuerui Wang <kernel@xen0n.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/csky/include')
| -rw-r--r-- | arch/csky/include/asm/pgtable.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/csky/include/asm/pgtable.h b/arch/csky/include/asm/pgtable.h index 229a5f4ad7fc..349e03dfb9ba 100644 --- a/arch/csky/include/asm/pgtable.h +++ b/arch/csky/include/asm/pgtable.h @@ -19,11 +19,10 @@ * C-SKY is two-level paging structure: */ #define PGD_ORDER 0 -#define PTE_ORDER 0 #define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t)) #define PTRS_PER_PMD 1 -#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t)) +#define PTRS_PER_PTE (PAGE_SIZE / sizeof(pte_t)) #define pte_ERROR(e) \ pr_err("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low) |