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List:       linux-pci
Subject:    Re: PCIe memory map API
From:       Bjorn Helgaas <bhelgaas () google ! com>
Date:       2014-01-31 17:48:28
Message-ID: CAErSpo6uAs0v-KJ6jvraPfuUafJnFNKHhGaofPRp32Amm94jog () mail ! gmail ! com
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On Thu, Jan 30, 2014 at 10:17 PM, shiv prakash Agarwal
<chhotu.shiv@gmail.com> wrote:
> Hi All,
>
> Is PCI-E memory space in BARs always mapped as non-normal
> non-cacheable by ioremap api by device drivers?

PCI memory BARs are not mapped at all until a driver requests it by
calling ioremap() or a similar interface.  ioremap() gives you a
non-cacheable mapping.

Bjorn
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