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| author | Amber Lin <Amber.Lin@amd.com> | 2017-12-09 07:09:00 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2017-12-09 07:09:00 +0300 |
| commit | f475734729843d0d7b1cd70b9357285d05ca65e3 (patch) | |
| tree | 146cee1716dbfbc072271c3fe0dc916602d9bdd8 /drivers/gpu/drm/amd/amdkfd/kfd_topology.h | |
| parent | 3a87177eb14113bbe8cd95a276af2c412eced6ac (diff) | |
| download | linux-f475734729843d0d7b1cd70b9357285d05ca65e3.tar.xz | |
drm/amdkfd: Add perf counters to topology
For hardware blocks whose performance counters are accessed via MMIO
registers, KFD provides the support for those privileged blocks.
IOMMU is one of those privileged blocks. Most performance counter properties
required by Thunk are available at /sys/bus/event_source/devices/amd_iommu.
This patch adds properties to topology in KFD sysfs for information not
available in /sys/bus/event_source/devices/amd_iommu. They are shown at
/sys/devices/virtual/kfd/kfd/topology/nodes/0/perf/iommu/ formatted as
/sys/devices/virtual/kfd/kfd/topology/nodes/0/perf/<block>/<property>, i.e.
/sys/devices/virtual/kfd/kfd/topology/nodes/0/perf/iommu/max_concurrent.
For dGPUs, who don't have IOMMU, nothing appears under
/sys/devices/virtual/kfd/kfd/topology/nodes/0/perf.
Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_topology.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_topology.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h index 55de56fe11c9..b9f3142f4ad4 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h @@ -134,6 +134,13 @@ struct kfd_iolink_properties { struct attribute attr; }; +struct kfd_perf_properties { + struct list_head list; + char block_name[16]; + uint32_t max_concurrent; + struct attribute_group *attr_group; +}; + struct kfd_topology_device { struct list_head list; uint32_t gpu_id; @@ -144,11 +151,13 @@ struct kfd_topology_device { struct list_head cache_props; uint32_t io_link_count; struct list_head io_link_props; + struct list_head perf_props; struct kfd_dev *gpu; struct kobject *kobj_node; struct kobject *kobj_mem; struct kobject *kobj_cache; struct kobject *kobj_iolink; + struct kobject *kobj_perf; struct attribute attr_gpuid; struct attribute attr_name; struct attribute attr_props; @@ -173,4 +182,8 @@ struct kfd_topology_device *kfd_create_topology_device( struct list_head *device_list); void kfd_release_topology_device_list(struct list_head *device_list); +extern bool amd_iommu_pc_supported(void); +extern u8 amd_iommu_pc_get_max_banks(u16 devid); +extern u8 amd_iommu_pc_get_max_counters(u16 devid); + #endif /* __KFD_TOPOLOGY_H__ */ |