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From: Jason Gunthorpe <jgg@nvidia.com>
To: Michael Shavit <mshavit@google.com>
Cc: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, will@kernel.org,
	robin.murphy@arm.com, nicolinc@nvidia.com,
	jean-philippe@linaro.org
Subject: Re: [PATCH v2 7/8] iommu/arm-smmu-v3: Move CD table to arm_smmu_master
Date: Tue, 1 Aug 2023 11:42:30 -0300	[thread overview]
Message-ID: <ZMkZ1iHPPiF+lLqC@nvidia.com> (raw)
In-Reply-To: <20230731184817.v2.7.Ice063dcf87d1b777a72e008d9e3406d2bcf6d876@changeid>

On Mon, Jul 31, 2023 at 06:48:17PM +0800, Michael Shavit wrote:
> With this change, each master will now own its own CD table instead of
> sharing one with other masters attached to the same domain. Attaching a
> stage 1 domain installs CD entries into the master's CD table. SVA
> writes its CD entries into each master's CD table if the domain is
> shared across masters.
> 
> Signed-off-by: Michael Shavit <mshavit@google.com>
> ---
> 
> Changes in v2:
> - Allocate CD table when it's first needed instead of on probe.
> 
> Changes in v1:
> - The master's CD table allocation was previously split to a different
>   commit. This change now atomically allocates the new CD table, uses
>   it, and removes the old one.
> 
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 67 +++++++++------------
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h |  6 +-
>  2 files changed, 32 insertions(+), 41 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason

WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com>
To: Michael Shavit <mshavit@google.com>
Cc: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, will@kernel.org,
	robin.murphy@arm.com, nicolinc@nvidia.com,
	jean-philippe@linaro.org
Subject: Re: [PATCH v2 7/8] iommu/arm-smmu-v3: Move CD table to arm_smmu_master
Date: Tue, 1 Aug 2023 11:42:30 -0300	[thread overview]
Message-ID: <ZMkZ1iHPPiF+lLqC@nvidia.com> (raw)
In-Reply-To: <20230731184817.v2.7.Ice063dcf87d1b777a72e008d9e3406d2bcf6d876@changeid>

On Mon, Jul 31, 2023 at 06:48:17PM +0800, Michael Shavit wrote:
> With this change, each master will now own its own CD table instead of
> sharing one with other masters attached to the same domain. Attaching a
> stage 1 domain installs CD entries into the master's CD table. SVA
> writes its CD entries into each master's CD table if the domain is
> shared across masters.
> 
> Signed-off-by: Michael Shavit <mshavit@google.com>
> ---
> 
> Changes in v2:
> - Allocate CD table when it's first needed instead of on probe.
> 
> Changes in v1:
> - The master's CD table allocation was previously split to a different
>   commit. This change now atomically allocates the new CD table, uses
>   it, and removes the old one.
> 
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 67 +++++++++------------
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h |  6 +-
>  2 files changed, 32 insertions(+), 41 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason

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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2023-08-01 14:42 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-31 10:48 [PATCH v2 0/8] Refactor the SMMU's CD table ownership Michael Shavit
2023-07-31 10:48 ` Michael Shavit
2023-07-31 10:48 ` [PATCH v2 1/8] iommu/arm-smmu-v3: Move ctx_desc out of s1_cfg Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01 14:08   ` Jason Gunthorpe
2023-08-01 14:08     ` Jason Gunthorpe
2023-07-31 10:48 ` [PATCH v2 2/8] iommu/arm-smmu-v3: Replace s1_cfg with cdtab_cfg Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01  4:14   ` Nicolin Chen
2023-08-01  4:14     ` Nicolin Chen
2023-08-01  8:00     ` Michael Shavit
2023-08-01  8:00       ` Michael Shavit
2023-08-01 13:43   ` Jason Gunthorpe
2023-08-01 13:43     ` Jason Gunthorpe
2023-07-31 10:48 ` [PATCH v2 3/8] iommu/arm-smmu-v3: Encapsulate ctx_desc_cfg init in alloc_cd_tables Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01 14:09   ` Jason Gunthorpe
2023-08-01 14:09     ` Jason Gunthorpe
2023-07-31 10:48 ` [PATCH v2 4/8] iommu/arm-smmu-v3: move stall_enabled to the cd table Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01  4:28   ` Nicolin Chen
2023-08-01  4:28     ` Nicolin Chen
2023-08-01  4:52     ` Nicolin Chen
2023-08-01  4:52       ` Nicolin Chen
2023-08-01  8:09       ` Michael Shavit
2023-08-01  8:09         ` Michael Shavit
2023-08-01 13:31         ` Jason Gunthorpe
2023-08-01 13:31           ` Jason Gunthorpe
2023-08-01 14:12   ` Jason Gunthorpe
2023-08-01 14:12     ` Jason Gunthorpe
2023-07-31 10:48 ` [PATCH v2 5/8] iommu/arm-smmu-v3: Skip cd sync if CD table isn't active Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01 14:13   ` Jason Gunthorpe
2023-08-01 14:13     ` Jason Gunthorpe
2023-07-31 10:48 ` [PATCH v2 6/8] iommu/arm-smmu-v3: Refactor write_ctx_desc Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01 14:18   ` Jason Gunthorpe
2023-08-01 14:18     ` Jason Gunthorpe
2023-08-01 17:03     ` Michael Shavit
2023-08-01 17:03       ` Michael Shavit
2023-07-31 10:48 ` [PATCH v2 7/8] iommu/arm-smmu-v3: Move CD table to arm_smmu_master Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01 14:42   ` Jason Gunthorpe [this message]
2023-08-01 14:42     ` Jason Gunthorpe
2023-07-31 10:48 ` [PATCH v2 8/8] iommu/arm-smmu-v3: Rename cdcfg to cd_table Michael Shavit
2023-07-31 10:48   ` Michael Shavit
2023-08-01 14:44   ` Jason Gunthorpe
2023-08-01 14:44     ` Jason Gunthorpe

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