From: Sinan Kaya <okaya@codeaurora.org>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>,
"open list:EFIFB FRAMEBUFFER DRIVER"
<linux-fbdev@vger.kernel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
linux-arm-msm@vger.kernel.org, Timur Tabi <timur@codeaurora.org>,
open list <linux-kernel@vger.kernel.org>,
"open list:FRAMEBUFFER LAYER" <dri-devel@lists.freedesktop.org>,
Peter Jones <pjones@redhat.com>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH V2 2/2] efi/fb: Convert PCI bus address to resource if translated by the bridge
Date: Mon, 25 Jun 2018 17:31:29 +0000 [thread overview]
Message-ID: <d8f060ec-bc58-666d-7f2f-b3732ef2fa46@codeaurora.org> (raw)
In-Reply-To: <CAKv+Gu__a0yMcH6pyC0oxXZYgi=emuJA+6v1Zdmd4tbq_UR0Og@mail.gmail.com>
On 6/25/2018 1:29 PM, Ard Biesheuvel wrote:
>>> Platform has been doing mmio translation for quite a while. Because all accesses go through pci io protocol, the rest of the UEFI never needed to be aware of bar address or do direct access.
>>>
>>> This is the first time I hear of direct access. Maybe, GOP is a special case.
>>>
>>> I started copying your response to the bios vendor.
>>>
>>> They are probably missing that patch. I will pass it along.
>> I was informed that they fixed the issue in BIOS by presenting CPU physical
>> address instead of PCI bus address in FrameBufferBase of the AST GOP UEFI driver.
>>
>> We can drop this patch now.
>>
> Excellent! Thanks for following up with the vendor ...
>
Sure, appreciate the help.
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2018-06-25 17:31 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-18 14:17 [PATCH V2 1/2] efi/fb: Simplify fixup code to prefer struct resource Sinan Kaya
2018-05-18 14:17 ` [PATCH V2 2/2] efi/fb: Convert PCI bus address to resource if translated by the bridge Sinan Kaya
2018-06-13 14:22 ` Sinan Kaya
2018-06-13 15:06 ` Ard Biesheuvel
2018-06-13 15:17 ` okaya
2018-06-13 15:22 ` Ard Biesheuvel
2018-06-13 15:29 ` okaya
2018-06-13 15:45 ` Ard Biesheuvel
2018-06-13 15:50 ` okaya
2018-06-13 16:08 ` Bartlomiej Zolnierkiewicz
2018-06-22 7:54 ` Ard Biesheuvel
[not found] ` <CGME20180622100749eucas1p2a47cfba3b4d3d5004e9a0068917d5616@eucas1p2.samsung.com>
2018-06-22 10:07 ` Bartlomiej Zolnierkiewicz
[not found] ` <CGME20180622101111eucas1p119946679a7686911744b1296c2796b15@eucas1p1.samsung.com>
2018-06-22 10:11 ` Bartlomiej Zolnierkiewicz
[not found] ` <20180619222921.GA90490@bhelgaas-glaptop.roam.corp.google.com>
2018-06-22 11:21 ` Ard Biesheuvel
2018-06-22 13:52 ` Sinan Kaya
2018-06-22 13:55 ` Ard Biesheuvel
2018-06-22 18:01 ` Ard Biesheuvel
2018-06-22 18:30 ` Sinan Kaya
2018-06-22 19:29 ` Ard Biesheuvel
2018-06-25 8:20 ` Ard Biesheuvel
2018-06-25 15:52 ` okaya
2018-06-25 17:28 ` Sinan Kaya
2018-06-25 17:29 ` Ard Biesheuvel
2018-06-25 17:31 ` Sinan Kaya [this message]
2018-06-13 15:42 ` [PATCH V2 1/2] efi/fb: Simplify fixup code to prefer struct resource Ard Biesheuvel
2018-06-22 10:11 ` Bartlomiej Zolnierkiewicz
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