On Tue, Feb 09, 2016 at 04:53:50PM -0600, Suravee Suthikulpanit wrote: > From: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com> > > This patch series modifies the existing perf_event_amd_iommu driver > to support systems with multiple IOMMUs. It introduces new AMD IOMMU APIs, > which will are used by the AMD IOMMU Perf driver to access performance > counters in multiple IOMMUs. > > In addition, this series should also fix current AMD IOMMU PMU driver > initialization issue in some existing KV and CZ platform. > > Note that this patch also fixes the issue where IOMMU driver fails > to write to IOMMU perf counter as reported by Andreas Hartmann here > (http://comments.gmane.org/gmane.linux.kernel.pci/49147). > > Git branch containing this patch series is available here: > > https://github.com/ssuthiku/linux.git perf-iommu-v3 > > Changes from V2 ( https://lkml.org/lkml/2016/1/1/141) > * Ported to 4.5.0-rc2 > * Add reviewed by Joerg for patch 1 and 2 > * Remove EXPORT_SYMBOL from patch 3 (per Joerg suggestion) > * Merge patch 4/6 and 6/6 from V2 into 5/5 in V3 and add > more description in the commit message and in code comment. > * Patch 5: modify the logic to update counts to get rid off > un-necessary local64_cmpxchg(). > > Changes from V1 (https://lkml.org/lkml/2015/12/22/535): > * Update patch3 and 6 to use amd_iommus_present instead of introducing > amd_iommu_cnt static variable since they are the same thing > > Suravee Suthikulpanit (5): > perf/amd/iommu: Consolidate and move perf_event_amd_iommu header > perf/amd/iommu: Modify functions to query max banks and counters > iommu/amd: Introduce amd_iommu_get_num_iommus() > perf/amd/iommu: Introduce get_iommu_bnk_cnt_evt_idx > perf/amd/iommu: Enable support for multiple IOMMUs > > arch/x86/kernel/cpu/perf_event_amd_iommu.c | 164 > ++++++++++++++++++++--------- > arch/x86/kernel/cpu/perf_event_amd_iommu.h | 40 -------
You probably want to redo those against latest tip/master: http://git.kernel.org/tip/5b26547dd7faa84e1293baa144a0f3e74ed7d4c7 -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply.
