drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h

Extension

.h

Size

939 bytes

Lines

53

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/atomic.h
• linux/workqueue.h
• linux/mutex.h
• linux/types.h

Detected Declarations

• struct intel_guc_slpc

Annotated Snippet

struct intel_guc_slpc {
	struct i915_vma *vma;
	struct slpc_shared_data *vaddr;
	bool supported;
	bool selected;

	/* Indicates this is a server part */
	bool min_is_rpmax;

	/* platform frequency limits */
	u32 min_freq;
	u32 rp0_freq;
	u32 rp1_freq;
	u32 boost_freq;

	/* frequency softlimits */
	u32 min_freq_softlimit;
	u32 max_freq_softlimit;
	bool ignore_eff_freq;

	/* Base or power saving */
	u32 power_profile;

	/* cached media ratio mode */
	u32 media_ratio_mode;

	/* Protects set/reset of boost freq
	 * and value of num_waiters
	 */
	struct mutex lock;

	struct work_struct boost_work;
	atomic_t num_waiters;
	u32 num_boosts;
};

#endif

Annotation

• Immediate include surface: `linux/atomic.h`, `linux/workqueue.h`, `linux/mutex.h`, `linux/types.h`.
• Detected declarations: `struct intel_guc_slpc`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.