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powerpc/mm: Remove very old comment in hash-4k.h

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This comment talks about PTEs being 64-bits and PMD/PGD being 32-bits,
but that hasn't been true since 2005 when David Gibson implemented
4-level page tables in the commit titled "Four level pagetables for
ppc64".

Remove it.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2018-11-27 19:18:05 +11:00
parent 47918bc68b
commit 423e2f9445
1 changed files with 1 additions and 5 deletions
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6
arch/powerpc/include/asm/book3s/64/hash-4k.h
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@ -1,11 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */ /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_BOOK3S_64_HASH_4K_H #ifndef _ASM_POWERPC_BOOK3S_64_HASH_4K_H
#define _ASM_POWERPC_BOOK3S_64_HASH_4K_H #define _ASM_POWERPC_BOOK3S_64_HASH_4K_H
/*
* Entries per page directory level. The PTE level must use a 64b record
* for each page table entry. The PMD and PGD level use a 32b record for
* each entry by assuming that each entry is page aligned.
*/
#define H_PTE_INDEX_SIZE 9 #define H_PTE_INDEX_SIZE 9
#define H_PMD_INDEX_SIZE 7 #define H_PMD_INDEX_SIZE 7
#define H_PUD_INDEX_SIZE 9 #define H_PUD_INDEX_SIZE 9