From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
To: <linux-kernel@vger.kernel.org>, <iommu@lists.linux-foundation.org>
Cc: <bp@alien8.de>, <peterz@infradead.org>, <joro@8bytes.org>,
<mingo@redhat.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: [PATCH v12 00/10] perf/amd/iommu: Enable multi-IOMMU support
Date: Wed, 22 Mar 2017 02:02:32 -0500 [thread overview]
Message-ID: <1490166162-10002-1-git-send-email-Suravee.Suthikulpanit@amd.com> (raw)
From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
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-v12
Changes from V11 (https://lkml.org/lkml/2017/2/24/114)
* Cleaning up in patch 9 and 10 per Boris' suggestions.
Changes from V10 (https://lkml.org/lkml/2017/2/15/1202)
* Introduce amd_iommu specific struct in struct hw_perf_event
(patch 9/10).
* Minor clean up on pr_info (patch 1/10 per Joe Perches).
Changes from V9 (https://lkml.org/lkml/2017/2/7/105)
* Since each IOMMU PMU in a system functions independently from
one another, the amd_iommu_pc_init() function has been modified
to allow certain IOMMU PMU initialization to fail w/o disabling
the others (patch 9/9).
* Define a static pmu (iommu_pmu), and stuct assignment directly.
(per Boris)
* Refactor code clean up into a separate patch (4/9) (per Boris)
Thanks,
Suravee
Suravee Suthikulpanit (10):
perf/amd/iommu: Declare pr_fmt and remove unnecessary pr_debug
perf/amd/iommu: Clean up bitwise operations
perf/amd/iommu: Clean up perf_iommu_read()
iommu/amd: Clean up iommu_pc_get_set_reg()
iommu/amd: Introduce amd_iommu_get_num_iommus()
perf/amd/iommu: Modify functions to query max banks and counters
perf/amd/iommu: Modify amd_iommu_pc_get_set_reg_val() to allow
specifying IOMMU
perf/amd/iommu: Fix sysfs perf attribute groups
perf/amd/iommu: Introduce amd_iommu-specific struct in struct
hw_perf_event
perf/amd/iommu: Enable support for multiple IOMMUs
arch/x86/events/amd/iommu.c | 321 +++++++++++++++++++---------------------
arch/x86/events/amd/iommu.h | 18 ++-
drivers/iommu/amd_iommu.c | 6 +-
drivers/iommu/amd_iommu_init.c | 101 ++++++++-----
drivers/iommu/amd_iommu_proto.h | 8 +-
drivers/iommu/amd_iommu_types.h | 3 -
include/linux/perf_event.h | 7 +
7 files changed, 237 insertions(+), 227 deletions(-)
--
1.8.3.1
next reply other threads:[~2017-03-22 7:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 7:02 Suravee Suthikulpanit [this message]
2017-03-22 7:02 ` [PATCH v12 01/10] perf/amd/iommu: Declare pr_fmt and remove unnecessary pr_debug Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 02/10] perf/amd/iommu: Clean up bitwise operations Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 03/10] perf/amd/iommu: Clean up perf_iommu_read() Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 04/10] iommu/amd: Clean up iommu_pc_get_set_reg() Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 05/10] iommu/amd: Introduce amd_iommu_get_num_iommus() Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 06/10] perf/amd/iommu: Modify functions to query max banks and counters Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 07/10] perf/amd/iommu: Modify amd_iommu_pc_get_set_reg_val() to allow specifying IOMMU Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 08/10] perf/amd/iommu: Fix sysfs perf attribute groups Suravee Suthikulpanit
2017-03-22 7:02 ` [PATCH v12 09/10] perf/amd/iommu: Introduce amd_iommu-specific struct in struct hw_perf_event Suravee Suthikulpanit
2017-03-24 17:53 ` Borislav Petkov
2017-03-22 7:02 ` [PATCH v12 10/10] perf/amd/iommu: Enable support for multiple IOMMUs Suravee Suthikulpanit
2017-03-30 8:39 ` [tip:perf/core] x86/events/amd/iommu: " tip-bot for Suravee Suthikulpanit
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