From: Vasant Hegde <vasant.hegde@amd.com>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: iommu@lists.linux.dev, joro@8bytes.org,
suravee.suthikulpanit@amd.com, wei.huang2@amd.com,
jsnitsel@redhat.com
Subject: Re: [PATCH v2 12/16] iommu/amd: Add support for different types of PPR handler
Date: Mon, 31 Jul 2023 17:58:04 +0530 [thread overview]
Message-ID: <82c8636b-2cde-bc2b-08d1-5f669ba94bf8@amd.com> (raw)
In-Reply-To: <ZMek9W9NoJAIxvqy@ziepe.ca>
Hi Jason,
On 7/31/2023 5:41 PM, Jason Gunthorpe wrote:
> On Mon, Jul 31, 2023 at 01:32:05PM +0530, Vasant Hegde wrote:
>
>>>> +enum ppr_handlers {
>>>> + PPR_HANDLER_NONE, /* No handler specified */
>>>> + PPR_HANDLER_V2API, /* IOMMU v2 API ppr handler */
>>>> + PPR_HANDLER_IOPF, /* IOPF ppr handler */
>>>
>>> This constant is never used, move it to the patch that uses it.
>>
>> Sure. I will move IOPF macro to later patch series.
>>
>>>
>>> Why are you doing this? It would be much better to hook the GPU driver
>>> into the standard API, what prevents that?
>>
>> Because once we implement IOPF support we will have two different path. Hence
>> adding variable to track PPR.
>
> You should try very hard to avoid having two different paths.
Yes. I think eventually we will get their.
-Vasant
next prev parent reply other threads:[~2023-07-31 12:28 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-28 5:35 [PATCH v2 00/16] iommu/amd: SVA Support (Part 1) - cleanup/refactoring Vasant Hegde
2023-07-28 5:35 ` [PATCH v2 01/16] iommu/amd: Remove unused amd_io_pgtable.pt_root variable Vasant Hegde
2023-07-28 13:17 ` Jason Gunthorpe
2023-07-28 5:35 ` [PATCH v2 02/16] iommu/amd: Consolidate timeout pre-define to amd_iommu_type.h Vasant Hegde
2023-07-28 13:48 ` Jason Gunthorpe
2023-07-28 5:35 ` [PATCH v2 03/16] iommu/amd: Consolidate logic to allocate protection domain Vasant Hegde
2023-07-28 13:49 ` Jason Gunthorpe
2023-07-28 5:35 ` [PATCH v2 04/16] iommu/amd: Refactor protection domain allocation code Vasant Hegde
2023-07-28 13:53 ` Jason Gunthorpe
2023-07-31 6:30 ` Vasant Hegde
2023-07-31 12:03 ` Jason Gunthorpe
2023-07-28 5:35 ` [PATCH v2 05/16] iommu/amd/iommu_v2: Use protection_domain in struct device_state Vasant Hegde
2023-07-28 14:00 ` Jason Gunthorpe
2023-07-28 5:35 ` [PATCH v2 06/16] iommu/amd: Introduce helper functions for managing GCR3 table Vasant Hegde
2023-07-28 14:09 ` Jason Gunthorpe
2023-07-31 10:40 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 07/16] iommu/amd: Use struct protection_domain in helper functions Vasant Hegde
2023-07-28 14:10 ` Jason Gunthorpe
2023-07-28 5:36 ` [PATCH v2 08/16] iommu/amd: Do not set amd_iommu_pgtable in pass-through mode Vasant Hegde
2023-07-28 14:11 ` Jason Gunthorpe
2023-07-31 6:35 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 09/16] iommu/amd: Miscellaneous clean up when free domain Vasant Hegde
2023-07-28 14:13 ` Jason Gunthorpe
2023-07-31 9:39 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 10/16] iommu/amd: Modify logic for checking GT and PPR features Vasant Hegde
2023-07-28 14:24 ` Jason Gunthorpe
2023-07-31 11:51 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 11/16] iommu/amd: Rename ats related variables Vasant Hegde
2023-07-28 14:27 ` Jason Gunthorpe
2023-07-31 9:15 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 12/16] iommu/amd: Add support for different types of PPR handler Vasant Hegde
2023-07-28 14:31 ` Jason Gunthorpe
2023-07-31 8:02 ` Vasant Hegde
2023-07-31 12:11 ` Jason Gunthorpe
2023-07-31 12:28 ` Vasant Hegde [this message]
2023-07-28 5:36 ` [PATCH v2 13/16] iommu/amd: Introduce iommu_dev_data.flags to track device capabilities Vasant Hegde
2023-07-28 14:38 ` Jason Gunthorpe
2023-07-31 7:57 ` Vasant Hegde
2023-07-31 12:08 ` Jason Gunthorpe
2023-08-04 6:40 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 14/16] iommu/amd: Enable device ATS/PASID/PRI capabilities independently Vasant Hegde
2023-07-28 14:40 ` Jason Gunthorpe
2023-07-28 5:36 ` [PATCH v2 15/16] iommu/amd: Initialize iommu_device->max_pasids Vasant Hegde
2023-07-28 14:46 ` Jason Gunthorpe
2023-07-31 7:03 ` Vasant Hegde
2023-07-31 12:07 ` Jason Gunthorpe
2023-07-31 16:04 ` Vasant Hegde
2023-07-28 5:36 ` [PATCH v2 16/16] iommu/amd: Simplify amd_iommu_device_info() Vasant Hegde
2023-07-28 14:47 ` Jason Gunthorpe
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