Re: [PATCH 0/5 v11] iommu/fsl: Freescale PAMU driver and IOMMU API implementation.
On Fri, Mar 29, 2013 at 01:23:57AM +0530, Varun Sethi wrote: This patchset provides the Freescale PAMU (Peripheral Access Management Unit) driver and the corresponding IOMMU API implementation. PAMU is the IOMMU present on Freescale QorIQ platforms. PAMU can authorize memory access, remap the memory address, and remap the I/O transaction type. This set consists of the following patches: 1. Make iova dma_addr_t in the iommu_iova_to_phys API. 2. Addition of new field in the device (powerpc) archdata structure for storing iommu domain information pointer. 3. Add window permission flags in the iommu_domain_window_enable API. 4. Add domain attributes for FSL PAMU driver. 5. PAMU driver and IOMMU API implementation. Okay, I am about to apply patches 1 and 3 to a new ppc/pamu branch in my tree. As a general question, how did you test the IOMMU driver and what will you do in the future to avoid regressions? Joerg ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
RE: [PATCH 0/5 v11] iommu/fsl: Freescale PAMU driver and IOMMU API implementation.
-Original Message- From: Joerg Roedel [mailto:j...@8bytes.org] Sent: Tuesday, April 02, 2013 9:53 PM To: Sethi Varun-B16395 Cc: Yoder Stuart-B08248; Wood Scott-B07421; iommu@lists.linux- foundation.org; linuxppc-dev@lists.ozlabs.org; linux- ker...@vger.kernel.org; ga...@kernel.crashing.org; b...@kernel.crashing.org Subject: Re: [PATCH 0/5 v11] iommu/fsl: Freescale PAMU driver and IOMMU API implementation. On Fri, Mar 29, 2013 at 01:23:57AM +0530, Varun Sethi wrote: This patchset provides the Freescale PAMU (Peripheral Access Management Unit) driver and the corresponding IOMMU API implementation. PAMU is the IOMMU present on Freescale QorIQ platforms. PAMU can authorize memory access, remap the memory address, and remap the I/O transaction type. This set consists of the following patches: 1. Make iova dma_addr_t in the iommu_iova_to_phys API. 2. Addition of new field in the device (powerpc) archdata structure for storing iommu domain information pointer. 3. Add window permission flags in the iommu_domain_window_enable API. 4. Add domain attributes for FSL PAMU driver. 5. PAMU driver and IOMMU API implementation. Okay, I am about to apply patches 1 and 3 to a new ppc/pamu branch in my tree. As a general question, how did you test the IOMMU driver and what will you do in the future to avoid regressions? I use a kernel module for testing the iommu_api support. The module allows for dynamic creation and deletion of iommu domains for the devices in the device tree. Also, the vfio support (under development) for Freescale SOCs with APMU hardware would depend on the PAMU driver. -Varun ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
[PATCH 0/5 v11] iommu/fsl: Freescale PAMU driver and IOMMU API implementation.
This patchset provides the Freescale PAMU (Peripheral Access Management Unit) driver and the corresponding IOMMU API implementation. PAMU is the IOMMU present on Freescale QorIQ platforms. PAMU can authorize memory access, remap the memory address, and remap the I/O transaction type. This set consists of the following patches: 1. Make iova dma_addr_t in the iommu_iova_to_phys API. 2. Addition of new field in the device (powerpc) archdata structure for storing iommu domain information pointer. 3. Add window permission flags in the iommu_domain_window_enable API. 4. Add domain attributes for FSL PAMU driver. 5. PAMU driver and IOMMU API implementation. This patch set is based on the next branch Joerg's iommu git tree. Varun Sethi (5): Make iova dma_addr_t in the iommu_iova_to_phys API. Add iommu domain pointer to device archdata Add the window permission flag as a parameter to iommu_window_enable API. Add addition iommu attributes required by the PAMU driver. FSL PAMU driver. arch/powerpc/include/asm/device.h |6 + arch/powerpc/sysdev/fsl_pci.h |5 + drivers/iommu/Kconfig |8 + drivers/iommu/Makefile|1 + drivers/iommu/amd_iommu.c |2 +- drivers/iommu/exynos-iommu.c |2 +- drivers/iommu/fsl_pamu.c | 1269 + drivers/iommu/fsl_pamu.h | 405 drivers/iommu/fsl_pamu_domain.c | 1137 + drivers/iommu/fsl_pamu_domain.h | 85 +++ drivers/iommu/intel-iommu.c |2 +- drivers/iommu/iommu.c |8 +- drivers/iommu/msm_iommu.c |2 +- drivers/iommu/omap-iommu.c|2 +- drivers/iommu/shmobile-iommu.c|2 +- drivers/iommu/tegra-gart.c|2 +- drivers/iommu/tegra-smmu.c|2 +- include/linux/iommu.h | 51 ++- 18 files changed, 2970 insertions(+), 21 deletions(-) create mode 100644 drivers/iommu/fsl_pamu.c create mode 100644 drivers/iommu/fsl_pamu.h create mode 100644 drivers/iommu/fsl_pamu_domain.c create mode 100644 drivers/iommu/fsl_pamu_domain.h -- 1.7.4.1 ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
