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From: Julien Grall <julien.grall@arm.com>
To: Suzuki K Poulose <suzuki.poulose@arm.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu
Cc: christoffer.dall@arm.com, james.morse@arm.com,
	marc.zyngier@arm.com, julien.thierry@arm.com,
	catalin.marinas@arm.com, will.deacon@arm.com
Subject: Re: [PATCH RFC 01/14] arm64/mm: Introduce asid_info structure and move asid_generation/asid_map to it
Date: Thu, 21 Mar 2019 17:27:40 +0000
Message-ID: <247efb35-2082-289a-43cf-3342b586b1d8@arm.com> (raw)
In-Reply-To: <ad32ff02-a88f-ee8a-3296-f859638d66b9@arm.com>

On 3/21/19 5:03 PM, Suzuki K Poulose wrote:
> Hi Julien,

Hi Suzuki,

> On 21/03/2019 16:36, Julien Grall wrote:
>> In an attempt to make the ASID allocator generic, create a new structure
>> asid_info to store all the information necessary for the allocator.
>>
>> For now, move the variables asid_generation and asid_map to the new 
>> structure
>> asid_info. Follow-up patches will move more variables.
>>
>> Note to avoid more renaming aftwards, a local variable 'info' has been
>> created and is a pointer to the ASID allocator structure.
>>
>> Signed-off-by: Julien Grall <julien.grall@arm.com>
>> ---
>>   arch/arm64/mm/context.c | 46 
>> ++++++++++++++++++++++++++--------------------
>>   1 file changed, 26 insertions(+), 20 deletions(-)
>>
>> diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c
>> index 1f0ea2facf24..34db54f1a39a 100644
>> --- a/arch/arm64/mm/context.c
>> +++ b/arch/arm64/mm/context.c
>> @@ -30,8 +30,11 @@
>>   static u32 asid_bits;
>>   static DEFINE_RAW_SPINLOCK(cpu_asid_lock);
>> -static atomic64_t asid_generation;
>> -static unsigned long *asid_map;
>> +struct asid_info
>> +{
>> +    atomic64_t    generation;
>> +    unsigned long    *map;
>> +} asid_info;
> 
> Shouldn't this be static ? Rest looks fine.

Yes it should be static. I have updated my code.

Thank you for the review!

Cheers,

> 
> Cheers
> Suzuki

-- 
Julien Grall

  reply index

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-21 16:36 [PATCH RFC 00/14] kvm/arm: Align the VMID allocation with the arm64 ASID one Julien Grall
2019-03-21 16:36 ` [PATCH RFC 01/14] arm64/mm: Introduce asid_info structure and move asid_generation/asid_map to it Julien Grall
2019-03-21 17:03   ` Suzuki K Poulose
2019-03-21 17:27     ` Julien Grall [this message]
2019-03-21 16:36 ` [PATCH RFC 02/14] arm64/mm: Move active_asids and reserved_asids to asid_info Julien Grall
2019-03-21 16:36 ` [PATCH RFC 03/14] arm64/mm: Move bits " Julien Grall
2019-03-21 16:36 ` [PATCH RFC 04/14] arm64/mm: Move the variable lock and tlb_flush_pending " Julien Grall
2019-03-21 16:36 ` [PATCH RFC 05/14] arm64/mm: Remove dependency on MM in new_context Julien Grall
2019-03-21 16:36 ` [PATCH RFC 06/14] arm64/mm: Store the number of asid allocated per context Julien Grall
2019-03-21 16:36 ` [PATCH RFC 07/14] arm64/mm: Introduce NUM_ASIDS Julien Grall
2019-03-21 16:36 ` [PATCH RFC 08/14] arm64/mm: Split asid_inits in 2 parts Julien Grall
2019-03-21 16:36 ` [PATCH RFC 09/14] arm64/mm: Split the function check_and_switch_context in 3 parts Julien Grall
2019-03-21 16:36 ` [PATCH RFC 10/14] arm64/mm: Introduce a callback to flush the local context Julien Grall
2019-03-21 16:36 ` [PATCH RFC 11/14] arm64: Move the ASID allocator code in a separate file Julien Grall
2019-06-05 16:56   ` Julien Grall
2019-06-05 20:41     ` Palmer Dabbelt
2019-06-11  1:56       ` Gary Guo
2019-06-19  8:07     ` Guo Ren
2019-06-19  8:54       ` Julien Grall
2019-06-19  9:12         ` Will Deacon
2019-06-19 12:18           ` Guo Ren
2019-06-19 12:39             ` Will Deacon
2019-06-20  9:33               ` Guo Ren
2019-06-24 10:40                 ` Will Deacon
2019-06-25  7:25                   ` Palmer Dabbelt
2019-09-07 23:52                   ` Guo Ren
2019-09-12 14:02                     ` Will Deacon
2019-09-12 14:59                       ` Guo Ren
2019-09-13  7:13                         ` Guo Ren
2019-09-14  8:49                           ` Guo Ren
2019-09-16 12:57                           ` Jean-Philippe Brucker
2019-09-19 13:07                             ` Guo Ren
2019-09-19 15:18                               ` Jean-Philippe Brucker
2019-09-20  0:07                                 ` Guo Ren
2019-09-20  7:18                                   ` Jean-Philippe Brucker
2019-09-14 14:01                       ` Palmer Dabbelt
2019-09-15  5:03                         ` Anup Patel
2019-09-16 18:18                           ` Will Deacon
2019-09-16 18:28                             ` Palmer Dabbelt
2019-09-17  3:42                             ` Anup Patel
2019-09-19 13:36                               ` Guo Ren
2019-06-19 11:51         ` Guo Ren
2019-06-19 12:52           ` Julien Grall
2019-06-21 14:16           ` Catalin Marinas
2019-06-23 16:35             ` Guo Ren
2019-06-24 10:22               ` Will Deacon
2019-06-27  9:41                 ` qi.fuli
2019-06-27 10:26                   ` Will Deacon
2019-06-24 15:38               ` Catalin Marinas
2019-06-30  4:29                 ` Guo Ren
2019-07-01  9:17                   ` Catalin Marinas
2019-07-16  3:31                     ` Guo Ren
2019-07-22 16:38                       ` Catalin Marinas
2019-03-21 16:36 ` [PATCH RFC 12/14] arm64/lib: asid: Allow user to update the context under the lock Julien Grall
2019-03-21 16:36 ` [PATCH RFC 13/14] arm/kvm: Introduce a new VMID allocator Julien Grall
2019-03-21 16:36 ` [PATCH RFC 14/14] kvm/arm: Align the VMID allocation with the arm64 ASID one Julien Grall

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