From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suravee Suthikulpanit Subject: [PATCH v7 0/7] perf/amd/iommu: Enable multi-IOMMU support Date: Mon, 9 Jan 2017 21:33:40 -0600 Message-ID: <1484019227-11473-1-git-send-email-Suravee.Suthikulpanit@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org List-Id: iommu@lists.linux-foundation.org From: Suravee Suthikulpanit This patch series modifies the existing IOMMU and Perf drivers to support systems with multiple IOMMUs by allocating an amd_iommu PMU per IOMMU instance. This allows users to specify performance events and filters separately for each IOMMU. This has been tested on the new family17h-based server w/ multiple IOMMUs. Git branch containing this patch series is available here: https://github.com/ssuthiku/linux.git perf-iommu-v7 Changes from V6 (https://lkml.org/lkml/2016/12/23/134) * Renamed function parameters from devid to idx (per Joerg). * Removed unnecessary function declarations from amd_iommu_proto.h (per Joerg). Changes from V5 (https://lkml.org/lkml/2016/2/23/370) * Rebased onto v4.9. * Remove the patch which consolidates function delclarations since we have not yet agreed on the appropriate place for the new header file. Suravee Suthikulpanit (7): perf/amd/iommu: Misc fix up perf_iommu_read perf/amd/iommu: Modify functions to query max banks and counters perf/amd/iommu: Modify IOMMU API to allow specifying IOMMU index perf/amd/iommu: Declare pr_fmt and remove unnecessary pr_debug perf/amd/iommu: Clean up perf_iommu_enable_event iommu/amd: Introduce amd_iommu_get_num_iommus() perf/amd/iommu: Enable support for multiple IOMMUs arch/x86/events/amd/iommu.c | 206 ++++++++++++++++++++-------------------- arch/x86/events/amd/iommu.h | 17 ++-- drivers/iommu/amd_iommu_init.c | 119 ++++++++++++++++------- drivers/iommu/amd_iommu_proto.h | 9 +- 4 files changed, 201 insertions(+), 150 deletions(-) -- 1.8.3.1