linux-kernel - [PATCH v5] FlexRM support in VFIO platform

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Message-Id: <1503396041-19485-1-git-send-email-anup.patel@broadcom.com>
Date:   Tue, 22 Aug 2017 15:30:40 +0530
From:   Anup Patel <anup.patel@...adcom.com>
To:     Will Deacon <will.deacon@....com>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        Baptiste Reynal <b.reynal@...tualopensystems.com>,
        Alex Williamson <alex.williamson@...hat.com>
Cc:     Scott Branden <sbranden@...adcom.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, kvm@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        Anup Patel <anup.patel@...adcom.com>
Subject: [PATCH v5] FlexRM support in VFIO platform

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-v5 branch of
https://github.com/Broadcom/arm64-linux.git

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                |   8 ++
 drivers/vfio/platform/reset/Makefile               |   1 +
 .../vfio/platform/reset/vfio_platform_bcmflexrm.c  | 100 +++++++++++++++++++++
 3 files changed, 109 insertions(+)
 create mode 100644 drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c

-- 
2.7.4