linux-kernel - Re: [PATCH v4 4/4] SFH: Create HID report to Enable support of AMD sensor fusion Hub (SFH)

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Message-ID: <b96bb88c-dd1a-97d3-21fa-2cc60a4d6a60@amd.com>
Date:   Mon, 30 Mar 2020 09:53:51 +0530
From:   "Singh, Sandeep" <ssingh1@....com>
To:     Roger Gammans <rgammans@...mascience.co.uk>,
        Sandeep Singh <Sandeep.Singh@....com>
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org
Subject: Re: [PATCH v4 4/4] SFH: Create HID report to Enable support of AMD
 sensor fusion Hub (SFH)

Hi Roger,

On 3/30/2020 12:10 AM, Roger Gammans wrote:
> [CAUTION: External Email]
>
> On Thu, Feb 27, 2020 at 05:10:57AM +0000, Sandeep Singh wrote:
>
>> From: Sandeep Singh <sandeep.singh@....com>
>>
>> +#include "amd_sfh_hid_report_descriptor.h"
>> +#include "amd_mp2_pcie.h"
> I had to change the last line to
>
>    #include "../amd_mp2_pcie.h"
>
> to make it compile out of tree. After that I got a clean compile.
>
> Also I don't seem to be getting any data through
> to monitor-sensor in user space when I do install it, but I am
> gettting logs of log messages similar to this:
>
>   pcie_mp2_amd 0000:04:00.7: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000c address=0x5267f000 flags=0x0020]
>   pcie_mp2_amd 0000:04:00.7: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000c address=0x5267f000 flags=0x0020]
>
> This is compiled against the debian 5.4.0 kernel, on a
>       HP ENVY x360 Convertible 15-ds0xxx, SKU 6TD07EA#ABU
>
> I can run other tests or try other kernels if you think it might help,
> let me know what you need.
Can you disable IOMMU from bios and give a try or if your laptop does 
not have iommu option you can pass boot parameter "iommu=soft"
>
> --
> Roger Gammans