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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 May 2021 10:13:30.8428 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 073bb68d-98c2-4353-3a52-08d920f813f6 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DB5EUR03FT036.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBAPR08MB5750 Content-Type: multipart/alternative; boundary="------------8AFA42E8021B808D3DE8D42E" Content-Language: en-GB --------------8AFA42E8021B808D3DE8D42E Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi All, I have pushed this change to edk2 master at cfa6ffb113f2..e1999b264f1f Regards, Sami Mujawar On 27/05/2021 10:19 AM, Sami Mujawar via groups.io wrote: > > Hi Laszlo, Liming, > > Apologies for not doing it earlier. I was not sure if it was within my > right to merge the change. > > I will merge this in the next 2 hours. > > Regards, > > Sami Mujawar > > *From: *Laszlo Ersek > *Date: *Thursday, 27 May 2021 at 09:50 > *To: *gaoliming , devel@edk2.groups.io > , Sami Mujawar > *Cc: *ardb@kernel.org , leif@nuviainc.com > , Matteo Carlini , Andreas > Sandberg , Joey Gouly , > nd > *Subject: *Re: 回复: [edk2-devel] [edk2-devel202105 PATCH v2 1/1] > ArmPkg/ArmGic: Fix maximum number of interrupts in GICv3 > > Hi Liming, > > On 05/27/21 04:32, gaoliming wrote: > > If no objection, I will merge this patch today. Then, tomorrow, I > will create stable tag 202105. > > yes, please do that -- TBH, I thought Sami would merge it sooner, as > Sami does have maintainer access through DynamicTablesPkg and > StandaloneMmPkg. > > Thanks! > Laszlo > > > > > Thanks > > Liming > >> -----邮件原件----- > >> 发件人: devel@edk2.groups.io 代表 gaoliming > >> 发送时间: 2021年5月26日 10:22 > >> 收件人: devel@edk2.groups.io; lersek@redhat.com; > >> sami.mujawar@arm.com > >> 抄送: ardb@kernel.org; leif@nuviainc.com; Matteo.Carlini@arm.com; > >> Andreas.Sandberg@arm.com; joey.gouly@arm.com; nd@arm.com > >> 主题: 回复: [edk2-devel] [edk2-devel202105 PATCH v2 1/1] ArmPkg/ArmGic: > >> Fix maximum number of interrupts in GICv3 > >> > >> Laszlo, Ard, Sami: > >> I am OK to merge this patch for stable tag 202105. > >> > >> Thanks > >> Liming > >>> -----邮件原件----- > >>> 发件人: devel@edk2.groups.io 代表 Laszlo > >> Ersek > >>> 发送时间: 2021年5月25日 19:55 > >>> 收件人: devel@edk2.groups.io; sami.mujawar@arm.com > >>> 抄送: ardb@kernel.org; leif@nuviainc.com; Matteo.Carlini@arm.com; > >>> Andreas.Sandberg@arm.com; joey.gouly@arm.com; nd@arm.com > >>> 主题: Re: [edk2-devel] [edk2-devel202105 PATCH v2 1/1] ArmPkg/ArmGic: > >>> Fix maximum number of interrupts in GICv3 > >>> > >>> Hi Sami, > >>> > >>> On 05/24/21 15:01, Sami Mujawar wrote: > >>>> From: Andreas Sandberg > >>>> > >>>> Bugzilla: 3415 (https://bugzilla.tianocore.org/show_bug.cgi?id=3415) > >>>> > >>>> The GICv3 architecture supports up to 1020 ordinary interrupt > >>>> lines. The actual number of interrupts supported is described by the > >>>> ITLinesNumber field in the GICD_TYPER register. The total number of > >>>> implemented registers is normally calculated as > >>>> 32*(ITLinesNumber+1). However, maximum value (0x1f) is a special case > >>>> since that would indicate that 1024 interrupts are implemented. > >>>> > >>>> Add handling for this special case in ArmGicGetMaxNumInterrupts. > >>>> > >>>> Signed-off-by: Andreas Sandberg > >>>> Signed-off-by: Joey Gouly > >>>> Signed-off-by: Sami Mujawar > >>>> Reviewed-by: Ard Biesheuvel > >>>> --- > >>>> The changes can be seen at: > >>>> https://github.com/samimujawar/edk2/tree/1396_gic_max_num_intr_v2 > >>>> > >>>> Notes: > >>>> v2: > >>>> - Fix comment style. > >>> [Laszlo] > >>>> - Updated comment style. > >>> [Sami] > >>>> > >>>> ArmPkg/Drivers/ArmGic/ArmGicLib.c | 11 +++++++++-- > >>>> 1 file changed, 9 insertions(+), 2 deletions(-) > >>> > >>> I think this patch should be merged really soon, as long as Ard > agrees. > >>> > >>> Thanks, > >>> Laszlo > >>> > >>>> > >>>> diff --git a/ArmPkg/Drivers/ArmGic/ArmGicLib.c > >>> b/ArmPkg/Drivers/ArmGic/ArmGicLib.c > >>>> index > >>> > >> 6b01c88206ad8adef3100dd44c0d57660db77783..bd4b5edb903f3846f4f0e43 > >>> 1f93e001f01cd9e7d 100644 > >>>> --- a/ArmPkg/Drivers/ArmGic/ArmGicLib.c > >>>> +++ b/ArmPkg/Drivers/ArmGic/ArmGicLib.c > >>>> @@ -1,6 +1,6 @@ > >>>> /** @file > >>>> * > >>>> -* Copyright (c) 2011-2018, ARM Limited. All rights reserved. > >>>> +* Copyright (c) 2011-2021, Arm Limited. All rights reserved. > >>>> * > >>>> * SPDX-License-Identifier: BSD-2-Clause-Patent > >>>> * > >>>> @@ -120,7 +120,14 @@ ArmGicGetMaxNumInterrupts ( > >>>> IN INTN GicDistributorBase > >>>> ) > >>>> { > >>>> - return 32 * ((MmioRead32 (GicDistributorBase + ARM_GIC_ICDICTR) & > >>> 0x1F) + 1); > >>>> + UINTN ItLines; > >>>> + > >>>> + ItLines = MmioRead32 (GicDistributorBase + ARM_GIC_ICDICTR) & > >>> 0x1F; > >>>> + > >>>> + // > >>>> + // Interrupt ID 1020-1023 are reserved. > >>>> + // > >>>> + return (ItLines == 0x1f) ? 1020 : 32 * (ItLines + 1); > >>>> } > >>>> > >>>> VOID > >>>> > >>> > >>> > >>> > >>> > >>> > >> > >> > >> > >> > >> > >> > >> > > > > > > > > --------------8AFA42E8021B808D3DE8D42E Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit

Hi All,

I have pushed this change to edk2 master at cfa6ffb113f2..e1999b264f1f

Regards,

Sami Mujawar


On 27/05/2021 10:19 AM, Sami Mujawar via groups.io wrote:

Hi Laszlo, Liming,

 

Apologies for not doing it earlier. I was not sure if it was within my right to merge the change.

I will merge this in the next 2 hours.

 

Regards,

 

Sami Mujawar

 

 

From: Laszlo Ersek <lersek@redhat.com>
Date: Thursday, 27 May 2021 at 09:50
To: gaoliming <gaoliming@byosoft.com.cn>, devel@edk2.groups.io <devel@edk2.groups.io>, Sami Mujawar <Sami.Mujawar@arm.com>
Cc: ardb@kernel.org <ardb@kernel.org>, leif@nuviainc.com <leif@nuviainc.com>, Matteo Carlini <Matteo.Carlini@arm.com>, Andreas Sandberg <Andreas.Sandberg@arm.com>, Joey Gouly <Joey.Gouly@arm.com>, nd <nd@arm.com>
Subject: Re: 回复: [edk2-devel] [edk2-devel202105 PATCH v2 1/1] ArmPkg/ArmGic: Fix maximum number of interrupts in GICv3

Hi Liming,

On 05/27/21 04:32, gaoliming wrote:
> If no objection, I will merge this patch today. Then, tomorrow, I will create stable tag 202105.

yes, please do that -- TBH, I thought Sami would merge it sooner, as
Sami does have maintainer access through DynamicTablesPkg and
StandaloneMmPkg.

Thanks!
Laszlo

>
> Thanks
> Liming
>> -----邮件原件-----
>> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 gaoliming
>> 发送时间: 2021年5月26日 10:22
>> 收件人: devel@edk2.groups.io; lersek@redhat.com;
>> sami.mujawar@arm.com
>> 抄送: ardb@kernel.org; leif@nuviainc.com; Matteo.Carlini@arm.com;
>> Andreas.Sandberg@arm.com; joey.gouly@arm.com; nd@arm.com
>> 主题: 回复: [edk2-devel] [edk2-devel202105 PATCH v2 1/1] ArmPkg/ArmGic:
>> Fix maximum number of interrupts in GICv3
>>
>> Laszlo, Ard, Sami:
>>   I am OK to merge this patch for stable tag 202105.
>>
>> Thanks
>> Liming
>>> -----邮件原件-----
>>> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Laszlo
>> Ersek
>>> 发送时间: 2021年5月25日 19:55
>>> 收件人: devel@edk2.groups.io; sami.mujawar@arm.com
>>> 抄送: ardb@kernel.org; leif@nuviainc.com; Matteo.Carlini@arm.com;
>>> Andreas.Sandberg@arm.com; joey.gouly@arm.com; nd@arm.com
>>> 主题: Re: [edk2-devel] [edk2-devel202105 PATCH v2 1/1] ArmPkg/ArmGic:
>>> Fix maximum number of interrupts in GICv3
>>>
>>> Hi Sami,
>>>
>>> On 05/24/21 15:01, Sami Mujawar wrote:
>>>> From: Andreas Sandberg <andreas.sandberg@arm.com>
>>>>
>>>> Bugzilla: 3415 (https://bugzilla.tianocore.org/show_bug.cgi?id=3415)
>>>>
>>>> The GICv3 architecture supports up to 1020 ordinary interrupt
>>>> lines. The actual number of interrupts supported is described by the
>>>> ITLinesNumber field in the GICD_TYPER register. The total number of
>>>> implemented registers is normally calculated as
>>>> 32*(ITLinesNumber+1). However, maximum value (0x1f) is a special case
>>>> since that would indicate that 1024 interrupts are implemented.
>>>>
>>>> Add handling for this special case in ArmGicGetMaxNumInterrupts.
>>>>
>>>> Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
>>>> Signed-off-by: Joey Gouly <joey.gouly@arm.com>
>>>> Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
>>>> Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
>>>> ---
>>>> The changes can be seen at:
>>>> https://github.com/samimujawar/edk2/tree/1396_gic_max_num_intr_v2
>>>>
>>>> Notes:
>>>>     v2:
>>>>       - Fix comment style.
>>> [Laszlo]
>>>>       - Updated comment style.
>>> [Sami]
>>>>
>>>>  ArmPkg/Drivers/ArmGic/ArmGicLib.c | 11 +++++++++--
>>>>  1 file changed, 9 insertions(+), 2 deletions(-)
>>>
>>> I think this patch should be merged really soon, as long as Ard agrees.
>>>
>>> Thanks,
>>> Laszlo
>>>
>>>>
>>>> diff --git a/ArmPkg/Drivers/ArmGic/ArmGicLib.c
>>> b/ArmPkg/Drivers/ArmGic/ArmGicLib.c
>>>> index
>>>
>> 6b01c88206ad8adef3100dd44c0d57660db77783..bd4b5edb903f3846f4f0e43
>>> 1f93e001f01cd9e7d 100644
>>>> --- a/ArmPkg/Drivers/ArmGic/ArmGicLib.c
>>>> +++ b/ArmPkg/Drivers/ArmGic/ArmGicLib.c
>>>> @@ -1,6 +1,6 @@
>>>>  /** @file
>>>>  *
>>>> -*  Copyright (c) 2011-2018, ARM Limited. All rights reserved.
>>>> +*  Copyright (c) 2011-2021, Arm Limited. All rights reserved.
>>>>  *
>>>>  *  SPDX-License-Identifier: BSD-2-Clause-Patent
>>>>  *
>>>> @@ -120,7 +120,14 @@ ArmGicGetMaxNumInterrupts (
>>>>    IN  INTN          GicDistributorBase
>>>>    )
>>>>  {
>>>> -  return 32 * ((MmioRead32 (GicDistributorBase + ARM_GIC_ICDICTR) &
>>> 0x1F) + 1);
>>>> +  UINTN ItLines;
>>>> +
>>>> +  ItLines = MmioRead32 (GicDistributorBase + ARM_GIC_ICDICTR) &
>>> 0x1F;
>>>> +
>>>> +  //
>>>> +  // Interrupt ID 1020-1023 are reserved.
>>>> +  //
>>>> +  return (ItLines == 0x1f) ? 1020 : 32 * (ItLines + 1);
>>>>  }
>>>>
>>>>  VOID
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>
>
>


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