From: Catalin Marinas <catalin.marinas@arm.com>
To: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64/mm: Compute PTRS_PER_[PMD|PUD] independently of PTRS_PER_PTE
Date: Fri, 22 Apr 2022 14:45:30 +0100 [thread overview]
Message-ID: <YmKxehhwVIzVo3Di@arm.com> (raw)
In-Reply-To: <20220408041009.1259701-1-anshuman.khandual@arm.com>
On Fri, Apr 08, 2022 at 09:40:09AM +0530, Anshuman Khandual wrote:
> Possible page table entries (or pointers) on non-zero page table levels are
> dependent on a single page size i.e PAGE_SIZE and size required for each
> individual page table entry i.e 8 bytes. PTRS_PER_[PMD|PUD] as such are not
> related to PTRS_PER_PTE in any manner, as being implied currently. So lets
> just make this very explicit and compute these macros independently.
OTOH, we have lots of other assumptions about pmd etc. being updated
using the pte macros. Anyway, I'm fine with this.
--
Catalin
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next prev parent reply other threads:[~2022-04-22 13:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 4:10 [PATCH] arm64/mm: Compute PTRS_PER_[PMD|PUD] independently of PTRS_PER_PTE Anshuman Khandual
2022-04-22 13:45 ` Catalin Marinas [this message]
2022-04-22 18:27 ` Catalin Marinas
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