On Fri, Aug 30, 2024 at 05:12:12PM +0100, Will Deacon wrote: > On Thu, 29 Aug 2024 15:34:29 -0700, Nicolin Chen wrote: > > NVIDIA's Tegra241 (Grace) SoC has a CMDQ-Virtualization (CMDQV) hardware > > that extends standard ARM SMMUv3 to support multiple command queues with > > virtualization capabilities. Though this is similar to the ECMDQ in SMMU > > v3.3, CMDQV provides additional Virtual Interfaces (VINTFs) allowing VMs > > to have their own VINTFs and Virtual Command Queues (VCMDQs). The VCMDQs > > can only execute a limited set of commands, mainly invalidation commands > > when exclusively used by the VMs, compared to the standard SMMUv3 CMDQ. > > > > [...] > > Thanks for this, Nicolin! I did drop the 'default' statement in the end, > as I think it's a bit overkill to fail the probe in that case. > > Applied to will (for-joerg/arm-smmu/updates), thanks! > > [01/10] iommu/arm-smmu-v3: Issue a batch of commands to the same cmdq > https://git.kernel.org/will/c/56ae8866f3b4 > [02/10] iommu/arm-smmu-v3: Pass in cmdq pointer to arm_smmu_cmdq_build_sync_cmd > https://git.kernel.org/will/c/2ea1f0120f90 > [03/10] iommu/arm-smmu-v3: Pass in cmdq pointer to arm_smmu_cmdq_init > https://git.kernel.org/will/c/e736c895c45b > [04/10] iommu/arm-smmu-v3: Make symbols public for CONFIG_TEGRA241_CMDQV > https://git.kernel.org/will/c/a7a08b857a32 > [05/10] iommu/arm-smmu-v3: Add ARM_SMMU_OPT_TEGRA241_CMDQV > https://git.kernel.org/will/c/b935a5b1c670 > [06/10] iommu/arm-smmu-v3: Add acpi_smmu_iort_probe_model for impl > https://git.kernel.org/will/c/6f3f9ff43d00 > [07/10] iommu/arm-smmu-v3: Add struct arm_smmu_impl_ops > https://git.kernel.org/will/c/6de80d619203 > [08/10] iommu/arm-smmu-v3: Add in-kernel support for NVIDIA Tegra241 (Grace) CMDQV > https://git.kernel.org/will/c/918eb5c856f6 > [09/10] iommu/arm-smmu-v3: Start a new batch if new command is not supported > https://git.kernel.org/will/c/f59e85490712 > [10/10] iommu/tegra241-cmdqv: Limit CMDs for VCMDQs of a guest owned VINTF > https://git.kernel.org/will/c/a9d40285bdef > > Cheers, This makes my day :) Cheers! Nicolin
