linux-kernel - Re: [PATCH V1 5/7] accel/amdxdna: Add query firmware version

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Message-ID: <7741c649-3897-fabb-ee1c-e12c62e4ccfa@amd.com>
Date: Wed, 4 Dec 2024 21:14:24 -0800
From: Lizhi Hou <lizhi.hou@....com>
To: Mario Limonciello <mario.limonciello@....com>, <ogabbay@...nel.org>,
	<quic_jhugo@...cinc.com>, <dri-devel@...ts.freedesktop.org>
CC: <linux-kernel@...r.kernel.org>, <min.ma@....com>, <max.zhen@....com>,
	<sonal.santan@....com>, <king.tam@....com>
Subject: Re: [PATCH V1 5/7] accel/amdxdna: Add query firmware version


On 12/4/24 14:24, Mario Limonciello wrote:
> On 12/4/2024 15:37, Lizhi Hou wrote:
>> Enhance GET_INFO ioctl to support retrieving firmware version.
>>
>> Signed-off-by: Lizhi Hou <lizhi.hou@....com>
>> ---
>>   drivers/accel/amdxdna/aie2_pci.c | 20 ++++++++++++++++++++
>>   include/uapi/drm/amdxdna_accel.h | 19 +++++++++++++++++++
>>   2 files changed, 39 insertions(+)
>>
>> diff --git a/drivers/accel/amdxdna/aie2_pci.c 
>> b/drivers/accel/amdxdna/aie2_pci.c
>> index 1c8170325837..83abd16ade11 100644
>> --- a/drivers/accel/amdxdna/aie2_pci.c
>> +++ b/drivers/accel/amdxdna/aie2_pci.c
>> @@ -640,6 +640,23 @@ static int aie2_get_aie_version(struct 
>> amdxdna_client *client,
>>       return 0;
>>   }
>>   +static int aie2_get_firmware_version(struct amdxdna_client *client,
>> +                     struct amdxdna_drm_get_info *args)
>> +{
>> +    struct amdxdna_drm_query_firmware_version version;
>> +    struct amdxdna_dev *xdna = client->xdna;
>> +
>> +    version.major = xdna->fw_ver.major;
>> +    version.minor = xdna->fw_ver.minor;
>> +    version.patch = xdna->fw_ver.sub;
>> +    version.build = xdna->fw_ver.build;
>> +
>> +    if (copy_to_user(u64_to_user_ptr(args->buffer), &version, 
>> sizeof(version)))
>> +        return -EFAULT;
>> +
>> +    return 0;
>> +}
>> +
>>   static int aie2_get_clock_metadata(struct amdxdna_client *client,
>>                      struct amdxdna_drm_get_info *args)
>>   {
>> @@ -752,6 +769,9 @@ static int aie2_get_info(struct amdxdna_client 
>> *client, struct amdxdna_drm_get_i
>>       case DRM_AMDXDNA_QUERY_HW_CONTEXTS:
>>           ret = aie2_get_hwctx_status(client, args);
>>           break;
>> +    case DRM_AMDXDNA_QUERY_FIRMWARE_VERSION:
>> +        ret = aie2_get_firmware_version(client, args);
>> +        break;
>>       default:
>>           XDNA_ERR(xdna, "Not supported request parameter %u", 
>> args->param);
>>           ret = -EOPNOTSUPP;
>> diff --git a/include/uapi/drm/amdxdna_accel.h 
>> b/include/uapi/drm/amdxdna_accel.h
>> index af12af8bd699..ea86c57beb92 100644
>> --- a/include/uapi/drm/amdxdna_accel.h
>> +++ b/include/uapi/drm/amdxdna_accel.h
>> @@ -375,6 +375,20 @@ struct amdxdna_drm_query_hwctx {
>>       __u64 errors;
>>   };
>>   +/**
>> + * struct amdxdna_drm_query_firmware_version - Query the firmware 
>> version
>> + * @major: The major version number
>> + * @minor: The minor version number
>> + * @patch: The patch level version number
>> + * @build: The build ID
>> + */
>> +struct amdxdna_drm_query_firmware_version {
>> +    __u32 major; /* out */
>> +    __u32 minor; /* out */
>> +    __u32 patch; /* out */
>> +    __u32 build; /* out */
>> +};
>> +
>>   enum amdxdna_drm_get_param {
>>       DRM_AMDXDNA_QUERY_AIE_STATUS,
>>       DRM_AMDXDNA_QUERY_AIE_METADATA,
>> @@ -382,6 +396,11 @@ enum amdxdna_drm_get_param {
>>       DRM_AMDXDNA_QUERY_CLOCK_METADATA,
>>       DRM_AMDXDNA_QUERY_SENSORS,
>>       DRM_AMDXDNA_QUERY_HW_CONTEXTS,
>> +    DRM_AMDXDNA_READ_AIE_MEM,
>> +    DRM_AMDXDNA_READ_AIE_REG,
>> +    DRM_AMDXDNA_QUERY_FIRMWARE_VERSION,
>> +    DRM_AMDXDNA_GET_POWER_MODE,
>> +    DRM_AMDXDNA_QUERY_TELEMETRY,
>
> This is more than DRM_AMDXDNA_QUERY_FIRMWARE_VERSION.
>
> The other ones should go with other patches.
> Like DRM_AMDXDNA_GET_POWER_MODE should be in patch 6.
Ok.
>
> I didn't see DRM_AMDXDNA_READ_AIE_MEM, DRM_AMDXDNA_READ_AIE_REG, or
> DRM_AMDXDNA_QUERY_TELEMETRY used in this series, are they just 
> placeholders?  Maybe a different patch for the placeholders?

Yes. These are placeholders. I can remove them.


Thanks,

Lizhi

>
>
>>       DRM_AMDXDNA_NUM_GET_PARAM,
>>   };
>