From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anup Patel Subject: [PATCH v7] FlexRM support in VFIO platform Date: Wed, 6 Sep 2017 13:46:37 +0530 Message-ID: <1504685798-27645-1-git-send-email-anup.patel@broadcom.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Will Deacon , Robin Murphy , Joerg Roedel , Baptiste Reynal , Alex Williamson Cc: Scott Branden , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Anup Patel List-Id: iommu@lists.linux-foundation.org This patchset primarily adds Broadcom FlexRM reset module for VFIO platform driver. The patches are based on Linux-4.13-rc3 and can also be found at flexrm-vfio-v7 branch of https://github.com/Broadcom/arm64-linux.git Changes since v6: - Update the FlexRM ring flush sequence as suggested by HW folks - Shutdown all FlexRM ring anyway even if it fails on any of the FlexRM rings - Use dev_warn() instead of pr_warn() Changes since v5: - Make kconfig option VFIO_PLATFORM_BCMFLEXRM_RESET default to ARCH_BCM_IPROC Changes since v4: - Use "--timeout" instead of "timeout--" in vfio_platform_bcmflexrm_shutdown() Changes since v3: - Improve "depends on" for Kconfig option VFIO_PLATFORM_BCMFLEXRM_RESET - Fix typo in pr_warn() called by vfio_platform_bcmflexrm_shutdown() - Return error from vfio_platform_bcmflexrm_shutdown() when FlexRM ring flush timeout happens Changes since v2: - Remove PATCH1 because fixing VFIO no-IOMMU mode is a separate topic Changes since v1: - Remove iommu_present() check in vfio_iommu_group_get() - Drop PATCH1-to-PATCH3 because IOMMU_CAP_BYPASS is not required - Move additional comments out of license header in vfio_platform_bcmflexrm.c Anup Patel (1): vfio: platform: reset: Add Broadcom FlexRM reset module drivers/vfio/platform/reset/Kconfig | 9 ++ drivers/vfio/platform/reset/Makefile | 1 + .../vfio/platform/reset/vfio_platform_bcmflexrm.c | 115 +++++++++++++++++++++ 3 files changed, 125 insertions(+) create mode 100644 drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c -- 2.7.4