From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 1/6] ARM: Use PAGE_SIZE for ELF_EXEC_PAGESIZE
Date: Fri, 12 Jun 2020 09:50:29 +0100 [thread overview]
Message-ID: <20200612085029.GD1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <CAK8P3a2BpNVSE86zEYSGd7x+OF-7spjGmU331TbQX=DRAkpMoQ@mail.gmail.com>
On Fri, Jun 12, 2020 at 10:46:17AM +0200, Arnd Bergmann wrote:
> Correction: I was thinking of SHMLBA, not ELF_EXEC_PAGESIZE.
> SHMLBA is defined to 16KB in arch/arm/ at the moment (based on 4K
> page size), or (4 * PAGE_SIZE) on arm64, which can blow up to 256KB.
>
> AFAICT, SHMLBA should now be defined as "min(16384, PAGE_SIZE)".
Yes, because the 16k comes from the aliasing VIPT cache to avoid
aliases.
--
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next prev parent reply other threads:[~2020-06-12 8:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-11 13:49 [PATCH v2 0/6] ARM: Add support for large kernel page (from 8K to 64K) Gregory CLEMENT
2020-06-11 13:49 ` [PATCH v2 1/6] ARM: Use PAGE_SIZE for ELF_EXEC_PAGESIZE Gregory CLEMENT
2020-06-12 8:22 ` Arnd Bergmann
2020-06-12 8:35 ` Russell King - ARM Linux admin
2020-06-12 8:46 ` Arnd Bergmann
2020-06-12 8:50 ` Russell King - ARM Linux admin [this message]
2020-06-12 11:50 ` Catalin Marinas
2020-06-12 12:06 ` Gregory CLEMENT
2020-06-12 8:52 ` Gregory CLEMENT
2020-06-11 13:49 ` [PATCH v2 2/6] ARM: pagetable: prepare hardware page table to use large page Gregory CLEMENT
2020-06-11 13:49 ` [PATCH v2 3/6] ARM: Make the number of fix bitmap depend on the page size Gregory CLEMENT
2020-06-11 13:49 ` [PATCH v2 4/6] ARM: mm: Aligned pte allocation to one page Gregory CLEMENT
2020-06-12 8:37 ` Arnd Bergmann
2020-06-12 10:25 ` Catalin Marinas
2020-06-12 11:56 ` Gregory CLEMENT
2020-06-11 13:49 ` [PATCH v2 5/6] ARM: Add large kernel page support Gregory CLEMENT
2020-06-11 13:49 ` [PATCH v2 6/6] ARM: Add 64K page support at MMU level Gregory CLEMENT
2020-06-11 16:21 ` [PATCH v2 0/6] ARM: Add support for large kernel page (from 8K to 64K) Russell King - ARM Linux admin
2020-06-12 9:15 ` Gregory CLEMENT
2020-06-12 9:23 ` Arnd Bergmann
2020-06-12 12:21 ` Catalin Marinas
2020-06-12 12:49 ` Arnd Bergmann
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