From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753532AbdIFLSg (ORCPT ); Wed, 6 Sep 2017 07:18:36 -0400 Received: from mail-wr0-f172.google.com ([209.85.128.172]:34559 "EHLO mail-wr0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753352AbdIFLSf (ORCPT ); Wed, 6 Sep 2017 07:18:35 -0400 X-Google-Smtp-Source: ADKCNb5KxWUCRfmI8f5HbKYqaeYGnfCMlSyt2s2cUG1NzgE1joGMDZPTo3ArkDEm7b8Bko7U1za4vw== From: Anup Patel 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 Subject: [PATCH v8] FlexRM support in VFIO platform Date: Wed, 6 Sep 2017 16:48:16 +0530 Message-Id: <1504696697-2733-1-git-send-email-anup.patel@broadcom.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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-v8 branch of https://github.com/Broadcom/arm64-linux.git Changes since v7: - Use "ret |= rc" instead of "ret = rc" in vfio_platform_bcmflexrm_reset() 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