[PATCH V4] iommu/arm-smmu-v2: Workaround for ThunderX errata#27704

[Radha Mohan]

On Mon, Mar 28, 2016 at 11:57 AM, Radha Mohan <mohun106 at gmail.com> wrote:
> On Thu, Mar 24, 2016 at 11:29 AM, Chalamarla, Tirumalesh
> <Tirumalesh.Chalamarla at caviumnetworks.com> wrote:
>> Thanks.
>>
>>
>>
>>
>> On 3/24/16, 10:51 AM, "Will Deacon" <will.deacon at arm.com> wrote:
>>
>>>On Thu, Mar 24, 2016 at 05:36:39PM +0000, Chalamarla, Tirumalesh wrote:
>>>> Do you want me to resend it with path version number change?
>>>
>>>Shouldn't be any need. I've queued this locally, and will push out when
>>>I update my repo after the merge window.
>>>
>
> Minor change that affects the kernel compilation.
> I think it makes sense to resubmit the patch.
>
> diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
> index 6ed7c3e..4aca5c1 100644
> --- a/drivers/iommu/arm-smmu.c
> +++ b/drivers/iommu/arm-smmu.c
> @@ -1834,8 +1834,8 @@ static int arm_smmu_device_dt_probe(struct
> platform_device *pdev)
>          * asid/vmid space.
>          */
>         if (of_device_is_compatible(dev->of_node, "cavium,smmu-v2")) {
> -               smmu->cavium_id_base = atomic_read(cavium_smmu_context_count);
> -               atomic_add(smmu->num_context_banks, cavium_smmu_context_count);
> +               smmu->cavium_id_base = atomic_read(&cavium_smmu_context_count);
> +               atomic_add(smmu->num_context_banks, &cavium_smmu_context_count);
>         }
>
>         list_add(&smmu->list, &arm_smmu_devices);
>

Ok, please ignore this, I missed the changes in between the thread :)

>>>Will
>> _______________________________________________
>> linux-arm-kernel mailing list
>> linux-arm-kernel at lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel