drivers/gpu/drm/i915/display/i9xx_wm.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/i9xx_wm.h

Extension

.h

Size

836 bytes

Lines

38

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

• linux/types.h

Detected Declarations

• struct intel_crtc_state
• struct intel_display
• struct intel_plane_state
• function ilk_disable_cxsr
• function ilk_wm_sanitize
• function i9xx_wm_init

Annotated Snippet

#ifndef __I9XX_WM_H__
#define __I9XX_WM_H__

#include <linux/types.h>

struct intel_crtc_state;
struct intel_display;
struct intel_plane_state;

#ifdef I915
bool ilk_disable_cxsr(struct intel_display *display);
void ilk_wm_sanitize(struct intel_display *display);
bool intel_set_memory_cxsr(struct intel_display *display, bool enable);
void i9xx_wm_init(struct intel_display *display);
#else
static inline bool ilk_disable_cxsr(struct intel_display *display)
{
	return false;
}
static inline void ilk_wm_sanitize(struct intel_display *display)
{
}
static inline bool intel_set_memory_cxsr(struct intel_display *display, bool enable)
{
	return false;
}
static inline void i9xx_wm_init(struct intel_display *display)
{
}
#endif

#endif /* __I9XX_WM_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_crtc_state`, `struct intel_display`, `struct intel_plane_state`, `function ilk_disable_cxsr`, `function ilk_wm_sanitize`, `function i9xx_wm_init`.
• 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.