drivers/gpu/drm/xe/xe_hw_engine.h
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/xe/xe_hw_engine.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/xe/xe_hw_engine.h- Extension
.h- Size
- 2607 bytes
- Lines
- 82
- 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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
xe_hw_engine_types.h
Detected Declarations
struct drm_printerstruct drm_xe_engine_class_instancestruct xe_devicestruct xe_exec_queuefunction xe_hw_engine_is_valid
Annotated Snippet
#ifndef _XE_HW_ENGINE_H_
#define _XE_HW_ENGINE_H_
#include "xe_hw_engine_types.h"
struct drm_printer;
struct drm_xe_engine_class_instance;
struct xe_device;
struct xe_exec_queue;
#ifdef CONFIG_DRM_XE_JOB_TIMEOUT_MIN
#define XE_HW_ENGINE_JOB_TIMEOUT_MIN CONFIG_DRM_XE_JOB_TIMEOUT_MIN
#else
#define XE_HW_ENGINE_JOB_TIMEOUT_MIN 1
#endif
#ifdef CONFIG_DRM_XE_JOB_TIMEOUT_MAX
#define XE_HW_ENGINE_JOB_TIMEOUT_MAX CONFIG_DRM_XE_JOB_TIMEOUT_MAX
#else
#define XE_HW_ENGINE_JOB_TIMEOUT_MAX (10 * 1000)
#endif
#ifdef CONFIG_DRM_XE_TIMESLICE_MIN
#define XE_HW_ENGINE_TIMESLICE_MIN CONFIG_DRM_XE_TIMESLICE_MIN
#else
#define XE_HW_ENGINE_TIMESLICE_MIN 1
#endif
#ifdef CONFIG_DRM_XE_TIMESLICE_MAX
#define XE_HW_ENGINE_TIMESLICE_MAX CONFIG_DRM_XE_TIMESLICE_MAX
#else
#define XE_HW_ENGINE_TIMESLICE_MAX (10 * 1000 * 1000)
#endif
#ifdef CONFIG_DRM_XE_PREEMPT_TIMEOUT
#define XE_HW_ENGINE_PREEMPT_TIMEOUT CONFIG_DRM_XE_PREEMPT_TIMEOUT
#else
#define XE_HW_ENGINE_PREEMPT_TIMEOUT (640 * 1000)
#endif
#ifdef CONFIG_DRM_XE_PREEMPT_TIMEOUT_MIN
#define XE_HW_ENGINE_PREEMPT_TIMEOUT_MIN CONFIG_DRM_XE_PREEMPT_TIMEOUT_MIN
#else
#define XE_HW_ENGINE_PREEMPT_TIMEOUT_MIN 1
#endif
#ifdef CONFIG_DRM_XE_PREEMPT_TIMEOUT_MAX
#define XE_HW_ENGINE_PREEMPT_TIMEOUT_MAX CONFIG_DRM_XE_PREEMPT_TIMEOUT_MAX
#else
#define XE_HW_ENGINE_PREEMPT_TIMEOUT_MAX (10 * 1000 * 1000)
#endif
int xe_hw_engines_init_early(struct xe_gt *gt);
int xe_hw_engines_init(struct xe_gt *gt);
void xe_hw_engine_handle_irq(struct xe_hw_engine *hwe, u16 intr_vec);
void xe_hw_engine_enable_ring(struct xe_hw_engine *hwe);
u32 xe_hw_engine_mask_per_class(struct xe_gt *gt,
enum xe_engine_class engine_class);
struct xe_hw_engine_snapshot *
xe_hw_engine_snapshot_capture(struct xe_hw_engine *hwe, struct xe_exec_queue *q);
void xe_hw_engine_snapshot_free(struct xe_hw_engine_snapshot *snapshot);
void xe_hw_engine_print(struct xe_hw_engine *hwe, struct drm_printer *p);
void xe_hw_engine_setup_reg_lrc(struct xe_hw_engine *hwe);
bool xe_hw_engine_is_reserved(struct xe_hw_engine *hwe);
struct xe_hw_engine *
xe_hw_engine_lookup(struct xe_device *xe,
struct drm_xe_engine_class_instance eci);
static inline bool xe_hw_engine_is_valid(struct xe_hw_engine *hwe)
{
return hwe->name;
}
const char *xe_hw_engine_class_to_str(enum xe_engine_class class);
u64 xe_hw_engine_read_timestamp(struct xe_hw_engine *hwe);
enum xe_force_wake_domains xe_hw_engine_to_fw_domain(struct xe_hw_engine *hwe);
u32 xe_hw_engine_mmio_read32(struct xe_hw_engine *hwe, struct xe_reg reg);
#endif
Annotation
- Immediate include surface: `xe_hw_engine_types.h`.
- Detected declarations: `struct drm_printer`, `struct drm_xe_engine_class_instance`, `struct xe_device`, `struct xe_exec_queue`, `function xe_hw_engine_is_valid`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.