From: Hanjun Guo <guohanjun@huawei.com>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Will Deacon <will@kernel.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jeremy Linton <jeremy.linton@arm.com>,
Linuxarm <linuxarm@huawei.com>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux IOMMU <iommu@lists.linux-foundation.org>,
Rob Herring <robh+dt@kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Sudeep Holla <sudeep.holla@arm.com>, Len Brown <lenb@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
"Christoph Hellwig" <hch@lst.de>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
"moderated list:BROADCOM BCM2835 ARM ARCHITECTURE"
<linux-rpi-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 7/8] arm64: mm: Set ZONE_DMA size based on early IORT scan
Date: Fri, 16 Oct 2020 15:34:11 +0800 [thread overview]
Message-ID: <6efd3623-e758-30a7-b798-c06a624bed4e@huawei.com> (raw)
In-Reply-To: <89ed58a5-b3ca-e361-94d8-b6754ce5eb34@huawei.com>
On 2020/10/16 15:27, Hanjun Guo wrote:
>> The patch only takes the address limit field into account if its value
>> > 0.
>
> Sorry I missed the if (*->memory_address_limit) check, thanks
> for the reminding.
>
>>
>> Also, before commit 7fb89e1d44cb6aec ("ACPI/IORT: take _DMA methods
>> into account for named components"), the _DMA method was not taken
>> into account for named components at all, and only the IORT limit was
>> used, so I do not anticipate any problems with that.
>
> Then this patch is fine to me.
Certainly we need to address Lorenzo's comments.
Thanks
Hanjun
prev parent reply other threads:[~2020-10-16 7:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-14 19:12 [PATCH v3 0/8] arm64: Default to 32-bit wide ZONE_DMA Nicolas Saenz Julienne
2020-10-14 19:12 ` [PATCH v3 7/8] arm64: mm: Set ZONE_DMA size based on early IORT scan Nicolas Saenz Julienne
2020-10-15 10:31 ` Lorenzo Pieralisi
2020-10-16 6:56 ` Ard Biesheuvel
2020-10-15 14:26 ` Hanjun Guo
2020-10-15 15:15 ` Nicolas Saenz Julienne
2020-10-15 18:03 ` Catalin Marinas
2020-10-16 6:51 ` Hanjun Guo
2020-10-16 6:54 ` Ard Biesheuvel
2020-10-16 7:27 ` Hanjun Guo
2020-10-16 7:34 ` Hanjun Guo [this message]
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