* [PATCH] powerpc/mm: Remove very old comment in hash-4k.h
@ 2018-11-27 8:18 Michael Ellerman
2018-12-23 13:27 ` Michael Ellerman
0 siblings, 1 reply; 2+ messages in thread
From: Michael Ellerman @ 2018-11-27 8:18 UTC (permalink / raw)
To: linuxppc-dev; +Cc: aneesh.kumar, david
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>
---
See:
https://github.com/mpe/linux-fullhistory/commit/e28f7faf05159f1cfd564596f5e6178edba6bd49#diff-0adfdefb64f0f0ef306be06ce7f953ebL128
---
arch/powerpc/include/asm/book3s/64/hash-4k.h | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h b/arch/powerpc/include/asm/book3s/64/hash-4k.h
index 15bc16b1dc9c..cf5ba5254299 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h
@@ -1,11 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _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_PMD_INDEX_SIZE 7
#define H_PUD_INDEX_SIZE 9
--
2.17.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: powerpc/mm: Remove very old comment in hash-4k.h
2018-11-27 8:18 [PATCH] powerpc/mm: Remove very old comment in hash-4k.h Michael Ellerman
@ 2018-12-23 13:27 ` Michael Ellerman
0 siblings, 0 replies; 2+ messages in thread
From: Michael Ellerman @ 2018-12-23 13:27 UTC (permalink / raw)
To: Michael Ellerman, linuxppc-dev; +Cc: aneesh.kumar, david
On Tue, 2018-11-27 at 08:18:05 UTC, Michael Ellerman wrote:
> 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>
Applied to powerpc next.
https://git.kernel.org/powerpc/c/423e2f94456404b49d89ef587c3402
cheers
^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-11-27 8:18 [PATCH] powerpc/mm: Remove very old comment in hash-4k.h Michael Ellerman
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