From: Will Deacon <will@kernel.org>
To: Jordan Crouse <jcrouse@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org,
Robin Murphy <robin.murphy@arm.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
iommu@lists.linux-foundation.org,
freedreno@lists.freedesktop.org,
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Joerg Roedel <joro@8bytes.org>, Krishna Reddy <vdumpa@nvidia.com>,
Pritesh Raithatha <praithatha@nvidia.com>,
Sibi Sankar <sibis@codeaurora.org>,
Stephen Boyd <swboyd@chromium.org>,
Thierry Reding <treding@nvidia.com>,
Vivek Gautam <vivek.gautam@codeaurora.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC v12 13/13] iommu/arm-smmu: Add a init_context_bank implementation hook
Date: Thu, 13 Aug 2020 14:03:43 +0100 [thread overview]
Message-ID: <20200813130342.GA10256@willie-the-truck> (raw)
In-Reply-To: <20200810222657.1841322-14-jcrouse@codeaurora.org>
On Mon, Aug 10, 2020 at 04:26:57PM -0600, Jordan Crouse wrote:
> Add a new implementation hook to allow the implementation specific code
> to tweek the context bank configuration just before it gets written.
> The first user will be the Adreno GPU implementation to turn on
> SCTLR.HUPCF to ensure that a page fault doesn't terminating pending
> transactions. Doing so could hang the GPU if one of the terminated
> transactions is a CP read.
>
> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
> ---
>
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 16 ++++++++++++++++
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 21 +++++++++++++--------
> drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +++++
> 3 files changed, 34 insertions(+), 8 deletions(-)
We already have ->init_context(), so I'd prefer to use that instead of
adding another callback. Could we stick a couple of fields in
smmu_domain->cfg (e.g. sctlr_set, sctlr_clr) and handle those a bit like
we do for the asid/vmid on cavium implementations?
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org>
To: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Thierry Reding <treding@nvidia.com>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Robin Murphy <robin.murphy@arm.com>,
Stephen Boyd <swboyd@chromium.org>,
iommu@lists.linux-foundation.org,
Sibi Sankar <sibis@codeaurora.org>,
Vivek Gautam <vivek.gautam@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Pritesh Raithatha <praithatha@nvidia.com>,
freedreno@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC v12 13/13] iommu/arm-smmu: Add a init_context_bank implementation hook
Date: Thu, 13 Aug 2020 14:03:43 +0100 [thread overview]
Message-ID: <20200813130342.GA10256@willie-the-truck> (raw)
In-Reply-To: <20200810222657.1841322-14-jcrouse@codeaurora.org>
On Mon, Aug 10, 2020 at 04:26:57PM -0600, Jordan Crouse wrote:
> Add a new implementation hook to allow the implementation specific code
> to tweek the context bank configuration just before it gets written.
> The first user will be the Adreno GPU implementation to turn on
> SCTLR.HUPCF to ensure that a page fault doesn't terminating pending
> transactions. Doing so could hang the GPU if one of the terminated
> transactions is a CP read.
>
> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
> ---
>
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 16 ++++++++++++++++
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 21 +++++++++++++--------
> drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +++++
> 3 files changed, 34 insertions(+), 8 deletions(-)
We already have ->init_context(), so I'd prefer to use that instead of
adding another callback. Could we stick a couple of fields in
smmu_domain->cfg (e.g. sctlr_set, sctlr_clr) and handle those a bit like
we do for the asid/vmid on cavium implementations?
Will
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org>
To: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
Thierry Reding <treding@nvidia.com>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Joerg Roedel <joro@8bytes.org>,
Robin Murphy <robin.murphy@arm.com>,
Stephen Boyd <swboyd@chromium.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
iommu@lists.linux-foundation.org,
Sibi Sankar <sibis@codeaurora.org>,
Vivek Gautam <vivek.gautam@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Pritesh Raithatha <praithatha@nvidia.com>,
freedreno@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC v12 13/13] iommu/arm-smmu: Add a init_context_bank implementation hook
Date: Thu, 13 Aug 2020 14:03:43 +0100 [thread overview]
Message-ID: <20200813130342.GA10256@willie-the-truck> (raw)
In-Reply-To: <20200810222657.1841322-14-jcrouse@codeaurora.org>
On Mon, Aug 10, 2020 at 04:26:57PM -0600, Jordan Crouse wrote:
> Add a new implementation hook to allow the implementation specific code
> to tweek the context bank configuration just before it gets written.
> The first user will be the Adreno GPU implementation to turn on
> SCTLR.HUPCF to ensure that a page fault doesn't terminating pending
> transactions. Doing so could hang the GPU if one of the terminated
> transactions is a CP read.
>
> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
> ---
>
> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 16 ++++++++++++++++
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 21 +++++++++++++--------
> drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +++++
> 3 files changed, 34 insertions(+), 8 deletions(-)
We already have ->init_context(), so I'd prefer to use that instead of
adding another callback. Could we stick a couple of fields in
smmu_domain->cfg (e.g. sctlr_set, sctlr_clr) and handle those a bit like
we do for the asid/vmid on cavium implementations?
Will
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-08-13 13:03 UTC|newest]
Thread overview: 264+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-10 22:26 [PATCH v12 00/13] iommu/arm-smmu: Add Adreno SMMU specific implementation Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 01/13] iommu/arm-smmu: Pass io-pgtable config to implementation specific function Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 02/13] iommu/arm-smmu: Add support for split pagetables Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 03/13] iommu/arm-smmu: Prepare for the adreno-smmu implementation Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 04/13] iommu: Add a domain attribute to get/set a pagetable configuration Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-13 13:14 ` Will Deacon
2020-08-13 13:14 ` Will Deacon
2020-08-13 15:11 ` [Freedreno] " Rob Clark
2020-08-13 15:11 ` Rob Clark
2020-08-13 15:19 ` Will Deacon
2020-08-13 15:19 ` Will Deacon
2020-08-13 16:28 ` Rob Clark
2020-08-13 16:28 ` Rob Clark
2020-08-10 22:26 ` [PATCH v12 05/13] iommu/arm-smmu-qcom: Add implementation for the adreno GPU SMMU Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-13 13:23 ` Will Deacon
2020-08-13 13:23 ` Will Deacon
2020-08-13 13:23 ` Will Deacon
2020-08-10 22:26 ` [PATCH v12 06/13] dt-bindings: arm-smmu: Add compatible string for Adreno " Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 07/13] drm/msm: Add a context pointer to the submitqueue Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-13 16:17 ` [Freedreno] " Rob Clark
2020-08-13 16:17 ` Rob Clark
2020-08-13 16:17 ` Rob Clark
2020-08-13 17:04 ` Rob Clark
2020-08-13 17:04 ` Rob Clark
2020-08-13 17:04 ` Rob Clark
2020-08-10 22:26 ` [PATCH v12 08/13] drm/msm: Set the global virtual address range from the IOMMU domain Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 09/13] drm/msm: Add support to create a local pagetable Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-23 23:05 ` Guenter Roeck
2020-08-23 23:05 ` Guenter Roeck
2020-08-23 23:05 ` Guenter Roeck
2020-08-10 22:26 ` [PATCH v12 10/13] drm/msm: Add support for private address space instances Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 11/13] drm/msm/a6xx: Add support for per-instance pagetables Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [PATCH v12 12/13] arm: dts: qcom: sm845: Set the compatible string for the GPU SMMU Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` [RFC v12 13/13] iommu/arm-smmu: Add a init_context_bank implementation hook Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-10 22:26 ` Jordan Crouse
2020-08-13 13:03 ` Will Deacon [this message]
2020-08-13 13:03 ` Will Deacon
2020-08-13 13:03 ` Will Deacon
2020-08-13 13:19 ` [PATCH v12 00/13] iommu/arm-smmu: Add Adreno SMMU specific implementation Will Deacon
2020-08-13 13:19 ` Will Deacon
2020-08-13 13:19 ` Will Deacon
2020-08-13 13:19 ` Will Deacon
2020-08-14 2:40 ` [PATCH 00/19] iommu/arm-smmu + drm/msm: per-process GPU pgtables Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-17 16:51 ` Jordan Crouse
2020-08-17 16:51 ` Jordan Crouse
2020-08-17 16:51 ` Jordan Crouse
2020-08-17 16:51 ` Jordan Crouse
2020-08-14 2:40 ` [PATCH 01/19] drm/msm: remove dangling submitqueue references Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-17 16:51 ` Jordan Crouse
2020-08-17 16:51 ` Jordan Crouse
2020-08-17 16:51 ` Jordan Crouse
2020-08-17 16:51 ` Jordan Crouse
2020-09-01 2:35 ` Bjorn Andersson
2020-09-01 2:35 ` Bjorn Andersson
2020-09-01 2:35 ` Bjorn Andersson
2020-09-01 2:35 ` Bjorn Andersson
2020-09-01 3:42 ` Rob Clark
2020-09-01 3:42 ` Rob Clark
2020-09-01 3:42 ` Rob Clark
2020-09-01 3:42 ` Rob Clark
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-09-01 5:42 ` Bjorn Andersson
2020-08-14 2:40 ` [PATCH 02/19] iommu/arm-smmu: Pass io-pgtable config to implementation specific function Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-09-01 3:36 ` Bjorn Andersson
2020-09-01 3:36 ` Bjorn Andersson
2020-09-01 3:36 ` Bjorn Andersson
2020-09-01 3:36 ` Bjorn Andersson
2020-08-14 2:40 ` [PATCH 03/19] iommu/arm-smmu: Add support for split pagetables Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-09-01 3:41 ` Bjorn Andersson
2020-09-01 3:41 ` Bjorn Andersson
2020-09-01 3:41 ` Bjorn Andersson
2020-09-01 3:41 ` Bjorn Andersson
2020-08-14 2:40 ` [PATCH 04/19] iommu/arm-smmu: Prepare for the adreno-smmu implementation Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:40 ` Rob Clark
2020-08-14 2:41 ` [PATCH 05/19] iommu: add private interface for adreno-smmu Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-17 16:52 ` [Freedreno] " Jordan Crouse
2020-08-17 16:52 ` Jordan Crouse
2020-08-17 16:52 ` Jordan Crouse
2020-08-17 16:52 ` Jordan Crouse
2020-09-01 3:52 ` Bjorn Andersson
2020-09-01 3:52 ` Bjorn Andersson
2020-09-01 3:52 ` Bjorn Andersson
2020-09-01 3:52 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 06/19] drm/msm/gpu: add dev_to_gpu() helper Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-17 16:53 ` [Freedreno] " Jordan Crouse
2020-08-17 16:53 ` Jordan Crouse
2020-08-17 16:53 ` Jordan Crouse
2020-08-17 16:53 ` Jordan Crouse
2020-09-01 4:32 ` Bjorn Andersson
2020-09-01 4:32 ` Bjorn Andersson
2020-09-01 4:32 ` Bjorn Andersson
2020-09-01 4:32 ` Bjorn Andersson
2020-09-01 15:53 ` Rob Clark
2020-09-01 15:53 ` Rob Clark
2020-09-01 15:53 ` Rob Clark
2020-09-01 15:53 ` Rob Clark
2020-08-14 2:41 ` [PATCH 07/19] drm/msm: set adreno_smmu as gpu's drvdata Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-17 16:55 ` Jordan Crouse
2020-08-17 16:55 ` Jordan Crouse
2020-08-17 16:55 ` Jordan Crouse
2020-08-17 16:55 ` Jordan Crouse
2020-09-01 4:58 ` Bjorn Andersson
2020-09-01 4:58 ` Bjorn Andersson
2020-09-01 4:58 ` Bjorn Andersson
2020-09-01 4:58 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 08/19] iommu/arm-smmu: constify some helpers Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 4:56 ` Bjorn Andersson
2020-09-01 4:56 ` Bjorn Andersson
2020-09-01 4:56 ` Bjorn Andersson
2020-09-01 4:56 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 09/19] iommu/arm-smmu-qcom: Add implementation for the adreno GPU SMMU Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:00 ` Bjorn Andersson
2020-09-01 5:00 ` Bjorn Andersson
2020-09-01 5:00 ` Bjorn Andersson
2020-09-01 5:00 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 10/19] dt-bindings: arm-smmu: Add compatible string for Adreno " Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:00 ` Bjorn Andersson
2020-09-01 5:00 ` Bjorn Andersson
2020-09-01 5:00 ` Bjorn Andersson
2020-09-01 5:00 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 11/19] drm/msm: Add a context pointer to the submitqueue Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:05 ` Bjorn Andersson
2020-09-01 5:05 ` Bjorn Andersson
2020-09-01 5:05 ` Bjorn Andersson
2020-09-01 5:05 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 12/19] drm/msm: Drop context arg to gpu->submit() Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:06 ` Bjorn Andersson
2020-09-01 5:06 ` Bjorn Andersson
2020-09-01 5:06 ` Bjorn Andersson
2020-09-01 5:06 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 13/19] drm/msm: Set the global virtual address range from the IOMMU domain Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:23 ` Bjorn Andersson
2020-09-01 5:23 ` Bjorn Andersson
2020-09-01 5:23 ` Bjorn Andersson
2020-09-01 5:23 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 14/19] drm/msm: Add support to create a local pagetable Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:28 ` Bjorn Andersson
2020-09-01 5:28 ` Bjorn Andersson
2020-09-01 5:28 ` Bjorn Andersson
2020-09-01 5:28 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 15/19] drm/msm: Add support for private address space instances Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:30 ` Bjorn Andersson
2020-09-01 5:30 ` Bjorn Andersson
2020-09-01 5:30 ` Bjorn Andersson
2020-09-01 5:30 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 16/19] drm/msm/a6xx: Add support for per-instance pagetables Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-17 15:40 ` Akhil P Oommen
2020-08-17 15:40 ` Akhil P Oommen
2020-08-17 15:40 ` Akhil P Oommen
2020-08-17 15:40 ` Akhil P Oommen
2020-08-17 15:51 ` Rob Clark
2020-08-17 15:51 ` Rob Clark
2020-08-17 15:51 ` Rob Clark
2020-08-17 15:51 ` Rob Clark
2020-08-17 16:47 ` Jordan Crouse
2020-08-17 16:47 ` Jordan Crouse
2020-08-17 16:47 ` Jordan Crouse
2020-08-17 16:47 ` Jordan Crouse
2020-08-14 2:41 ` [PATCH 17/19] arm: dts: qcom: sm845: Set the compatible string for the GPU SMMU Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` [PATCH 18/19] iommu/arm-smmu: add a way for implementations to influence SCTLR Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-09-01 5:31 ` Bjorn Andersson
2020-09-01 5:31 ` Bjorn Andersson
2020-09-01 5:31 ` Bjorn Andersson
2020-09-01 5:31 ` Bjorn Andersson
2020-08-14 2:41 ` [PATCH 19/19] drm/msm: show process names in gem_describe Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-14 2:41 ` Rob Clark
2020-08-17 17:14 ` [Freedreno] " Jordan Crouse
2020-08-17 17:14 ` Jordan Crouse
2020-08-17 17:14 ` Jordan Crouse
2020-08-17 17:14 ` Jordan Crouse
2020-09-01 5:35 ` Bjorn Andersson
2020-09-01 5:35 ` Bjorn Andersson
2020-09-01 5:35 ` Bjorn Andersson
2020-09-01 5:35 ` Bjorn Andersson
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