From: Nicolin Chen <nicolinc@nvidia.com>
To: ALOK TIWARI <alok.a.tiwari@oracle.com>
Cc: <jgg@nvidia.com>, <kevin.tian@intel.com>, <corbet@lwn.net>,
<will@kernel.org>, <bagasdotme@gmail.com>, <robin.murphy@arm.com>,
<joro@8bytes.org>, <thierry.reding@gmail.com>,
<vdumpa@nvidia.com>, <jonathanh@nvidia.com>, <shuah@kernel.org>,
<jsnitsel@redhat.com>, <nathan@kernel.org>,
<peterz@infradead.org>, <yi.l.liu@intel.com>,
<mshavit@google.com>, <praan@google.com>,
<zhangzekun11@huawei.com>, <iommu@lists.linux.dev>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-tegra@vger.kernel.org>, <linux-kselftest@vger.kernel.org>,
<patches@lists.linux.dev>, <mochs@nvidia.com>,
<vasant.hegde@amd.com>
Subject: Re: [PATCH v2 21/22] iommu/tegra241-cmdqv: Add user-space use support
Date: Tue, 29 Apr 2025 14:12:37 -0700 [thread overview]
Message-ID: <aBFAxWo4Ud1LRaTa@Asurada-Nvidia> (raw)
In-Reply-To: <39fd41e0-2218-4c70-b79c-83be3eab30e7@oracle.com>
On Wed, Apr 30, 2025 at 01:17:48AM +0530, ALOK TIWARI wrote:
> > + /*
> > + * @length must be a power of 2, in range of
> > + * [ 32, 1 ^ (idr[1].CMDQS + CMDQ_ENT_SZ_SHIFT) ]
>
> 2 ^ (idr[1].CMDQS + CMDQ_ENT_SZ_SHIFT) or 1 << idr[1].CMDQS
>
> > + */
> > + max_n_shift = FIELD_GET(IDR1_CMDQS,
> > + readl_relaxed(smmu->base + ARM_SMMU_IDR1));
>
>
> LGTM, aside from a minor cosmetic thing.
Fixed all those and the typo in the other mail. Picked "2 ^ " btw.
Thanks
Nicolin
next prev parent reply other threads:[~2025-04-29 21:12 UTC|newest]
Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-26 5:57 [PATCH v2 00/22] iommufd: Add vIOMMU infrastructure (Part-4 vCMDQ) Nicolin Chen
2025-04-26 5:57 ` [PATCH v2 01/22] iommufd/viommu: Add driver-allocated vDEVICE support Nicolin Chen
2025-04-27 6:23 ` Baolu Lu
2025-04-28 0:41 ` Tian, Kevin
2025-04-28 18:08 ` Nicolin Chen
2025-04-26 5:57 ` [PATCH v2 02/22] iommu: Pass in a driver-level user data structure to viommu_alloc op Nicolin Chen
2025-04-27 6:31 ` Baolu Lu
2025-04-28 17:19 ` Nicolin Chen
2025-04-28 17:28 ` Pranjal Shrivastava
2025-04-26 5:57 ` [PATCH v2 03/22] iommufd/viommu: Allow driver-specific user data for a vIOMMU object Nicolin Chen
2025-04-27 6:36 ` Baolu Lu
2025-04-28 17:52 ` Pranjal Shrivastava
2025-04-30 14:58 ` ALOK TIWARI
2025-04-26 5:57 ` [PATCH v2 04/22] iommu: Add iommu_copy_struct_to_user helper Nicolin Chen
2025-04-27 6:39 ` Baolu Lu
2025-04-28 17:50 ` Pranjal Shrivastava
2025-04-28 18:21 ` Nicolin Chen
2025-04-29 8:31 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 05/22] iommufd: Add iommufd_struct_destroy to revert iommufd_viommu_alloc Nicolin Chen
2025-04-27 6:55 ` Baolu Lu
2025-04-28 17:24 ` Nicolin Chen
2025-04-26 5:58 ` [PATCH v2 06/22] iommufd/selftest: Support user_data in mock_viommu_alloc Nicolin Chen
2025-04-28 18:56 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 07/22] iommufd/selftest: Add covearge for viommu data Nicolin Chen
2025-04-28 19:02 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 08/22] iommufd: Abstract iopt_pin_pages and iopt_unpin_pages helpers Nicolin Chen
2025-04-27 7:22 ` Baolu Lu
2025-04-28 17:41 ` Nicolin Chen
2025-05-05 15:01 ` Jason Gunthorpe
2025-05-05 15:44 ` Nicolin Chen
2025-05-05 15:55 ` Jason Gunthorpe
2025-05-05 16:03 ` Nicolin Chen
2025-05-05 16:05 ` Jason Gunthorpe
2025-05-05 16:19 ` Nicolin Chen
2025-05-05 16:56 ` Jason Gunthorpe
2025-04-28 20:14 ` Pranjal Shrivastava
2025-04-28 22:12 ` Nicolin Chen
2025-04-28 23:34 ` Nicolin Chen
2025-04-29 18:03 ` Pranjal Shrivastava
2025-05-06 9:36 ` Tian, Kevin
2025-05-06 19:17 ` Nicolin Chen
2025-05-07 7:22 ` Tian, Kevin
2025-05-07 7:36 ` Nicolin Chen
2025-05-07 7:51 ` Tian, Kevin
2025-04-26 5:58 ` [PATCH v2 09/22] iommufd/viommu: Introduce IOMMUFD_OBJ_VCMDQ and its related struct Nicolin Chen
2025-04-28 1:09 ` Baolu Lu
2025-04-28 18:10 ` Nicolin Chen
2025-05-05 15:02 ` Jason Gunthorpe
2025-05-05 15:45 ` Nicolin Chen
2025-04-28 21:01 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 10/22] iommufd/viommmu: Add IOMMUFD_CMD_VCMDQ_ALLOC ioctl Nicolin Chen
2025-04-28 1:32 ` Baolu Lu
2025-04-28 18:58 ` Nicolin Chen
2025-04-29 6:11 ` Baolu Lu
2025-04-28 12:12 ` Vasant Hegde
2025-04-28 20:02 ` Nicolin Chen
2025-04-29 5:34 ` Vasant Hegde
2025-04-29 6:45 ` Nicolin Chen
2025-04-29 10:22 ` Vasant Hegde
2025-04-29 17:14 ` Nicolin Chen
2025-04-30 4:22 ` Vasant Hegde
2025-04-30 8:01 ` Nicolin Chen
2025-04-30 10:21 ` Vasant Hegde
2025-05-06 9:25 ` Tian, Kevin
2025-05-06 20:12 ` Nicolin Chen
2025-05-07 7:25 ` Tian, Kevin
2025-05-07 7:37 ` Nicolin Chen
2025-05-07 12:33 ` Jason Gunthorpe
2025-05-07 20:51 ` Nicolin Chen
2025-04-28 21:34 ` Pranjal Shrivastava
2025-04-28 22:44 ` Nicolin Chen
2025-04-29 8:28 ` Pranjal Shrivastava
2025-04-29 18:10 ` Pranjal Shrivastava
2025-04-29 18:15 ` Nicolin Chen
2025-04-29 18:57 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 11/22] iommufd: Add for-driver helpers iommufd_vcmdq_depend/undepend() Nicolin Chen
2025-04-28 2:22 ` Baolu Lu
2025-04-28 18:17 ` Nicolin Chen
2025-04-29 12:40 ` Pranjal Shrivastava
2025-04-29 17:10 ` Nicolin Chen
2025-04-29 17:59 ` Pranjal Shrivastava
2025-04-29 18:07 ` Nicolin Chen
2025-04-29 18:44 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 12/22] iommufd/selftest: Add coverage for IOMMUFD_CMD_VCMDQ_ALLOC Nicolin Chen
2025-04-26 5:58 ` [PATCH v2 13/22] iommufd: Add mmap interface Nicolin Chen
2025-04-28 2:50 ` Baolu Lu
2025-04-28 18:54 ` Nicolin Chen
2025-05-05 16:50 ` Jason Gunthorpe
2025-05-05 17:21 ` Nicolin Chen
2025-05-05 17:28 ` Jason Gunthorpe
2025-05-05 20:07 ` Nicolin Chen
2025-05-06 9:22 ` Tian, Kevin
2025-05-06 12:55 ` Jason Gunthorpe
2025-05-06 12:54 ` Jason Gunthorpe
2025-05-06 20:54 ` Nicolin Chen
2025-05-07 12:36 ` Jason Gunthorpe
2025-05-07 20:49 ` Nicolin Chen
2025-04-29 20:24 ` Pranjal Shrivastava
2025-04-29 20:34 ` Pranjal Shrivastava
2025-04-29 20:39 ` Nicolin Chen
2025-04-29 20:55 ` Pranjal Shrivastava
2025-04-29 21:05 ` Nicolin Chen
2025-04-29 21:35 ` Pranjal Shrivastava
2025-04-29 21:46 ` Nicolin Chen
2025-04-29 21:57 ` Pranjal Shrivastava
2025-05-05 16:55 ` Jason Gunthorpe
2025-05-05 17:27 ` Nicolin Chen
2025-05-05 17:31 ` Jason Gunthorpe
2025-05-05 19:50 ` Nicolin Chen
2025-05-06 12:52 ` Jason Gunthorpe
2025-05-06 19:30 ` Nicolin Chen
2025-05-07 12:39 ` Jason Gunthorpe
2025-05-07 21:09 ` Nicolin Chen
2025-05-07 22:08 ` Jason Gunthorpe
2025-05-08 3:49 ` Nicolin Chen
2025-05-08 9:15 ` Tian, Kevin
2025-05-08 12:12 ` Jason Gunthorpe
2025-05-08 17:14 ` Nicolin Chen
2025-05-05 18:47 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 14/22] iommufd/selftest: Add coverage for the new " Nicolin Chen
2025-04-26 5:58 ` [PATCH v2 15/22] Documentation: userspace-api: iommufd: Update vCMDQ Nicolin Chen
2025-04-28 14:31 ` Bagas Sanjaya
2025-04-28 19:00 ` Nicolin Chen
2025-04-26 5:58 ` [PATCH v2 16/22] iommu/arm-smmu-v3-iommufd: Add vsmmu_alloc impl op Nicolin Chen
2025-04-29 21:36 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 17/22] iommu/arm-smmu-v3-iommufd: Support implementation-defined hw_info Nicolin Chen
2025-04-29 21:44 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 18/22] iommu/tegra241-cmdqv: Use request_threaded_irq Nicolin Chen
2025-04-29 21:47 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 19/22] iommu/tegra241-cmdqv: Simplify deinit flow in tegra241_cmdqv_remove_vintf() Nicolin Chen
2025-04-29 22:05 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 20/22] iommu/tegra241-cmdqv: Do not statically map LVCMDQs Nicolin Chen
2025-04-29 20:43 ` ALOK TIWARI
2025-04-29 22:32 ` Pranjal Shrivastava
2025-04-29 22:37 ` Nicolin Chen
2025-04-26 5:58 ` [PATCH v2 21/22] iommu/tegra241-cmdqv: Add user-space use support Nicolin Chen
2025-04-29 19:47 ` ALOK TIWARI
2025-04-29 21:12 ` Nicolin Chen [this message]
2025-04-30 21:59 ` Pranjal Shrivastava
2025-04-30 22:39 ` Nicolin Chen
2025-05-01 0:54 ` Nicolin Chen
2025-05-01 21:46 ` Pranjal Shrivastava
2025-05-01 21:45 ` Pranjal Shrivastava
2025-04-26 5:58 ` [PATCH v2 22/22] iommu/tegra241-cmdqv: Add IOMMU_VEVENTQ_TYPE_TEGRA241_CMDQV support Nicolin Chen
2025-04-30 15:07 ` ALOK TIWARI
2025-04-30 22:03 ` Pranjal Shrivastava
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