drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.h
Extension
.h
Size
2180 bytes
Lines
58
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _AMDGPU_PMU_H_
#define _AMDGPU_PMU_H_

/* PMU types. */
enum amdgpu_pmu_perf_type {
	AMDGPU_PMU_PERF_TYPE_NONE = 0,
	AMDGPU_PMU_PERF_TYPE_DF,
	AMDGPU_PMU_PERF_TYPE_ALL
};

/*
 * PMU type AMDGPU_PMU_PERF_TYPE_ALL can hold events of different "type"
 * configurations.  Event config types are parsed from the 64-bit raw
 * config (See EVENT_CONFIG_TYPE_SHIFT and EVENT_CONFIG_TYPE_MASK) and
 * are registered into the HW perf events config_base.
 *
 * PMU types with only a single event configuration type
 * (non-AMDGPU_PMU_PERF_TYPE_ALL) have their event config type auto generated
 * when the performance counter is added.
 */
enum amdgpu_pmu_event_config_type {
	AMDGPU_PMU_EVENT_CONFIG_TYPE_NONE = 0,
	AMDGPU_PMU_EVENT_CONFIG_TYPE_DF,
	AMDGPU_PMU_EVENT_CONFIG_TYPE_XGMI,
	AMDGPU_PMU_EVENT_CONFIG_TYPE_MAX
};

#define AMDGPU_PMU_EVENT_CONFIG_TYPE_SHIFT	56
#define AMDGPU_PMU_EVENT_CONFIG_TYPE_MASK	0xff

int amdgpu_pmu_init(struct amdgpu_device *adev);
void amdgpu_pmu_fini(struct amdgpu_device *adev);

#endif /* _AMDGPU_PMU_H_ */

Annotation

Implementation Notes