drivers/gpu/drm/vmwgfx/vmwgfx_vkms.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/vmwgfx/vmwgfx_vkms.h

Extension

.h

Size

3094 bytes

Lines

76

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/types.h

Detected Declarations

• struct drm_atomic_commit
• struct drm_crtc
• struct vmw_private
• struct vmw_surface

Annotated Snippet

#ifndef VMWGFX_VKMS_H_
#define VMWGFX_VKMS_H_

#include <linux/types.h>

struct drm_atomic_commit;
struct drm_crtc;
struct vmw_private;
struct vmw_surface;

void vmw_vkms_init(struct vmw_private *vmw);
void vmw_vkms_cleanup(struct vmw_private *vmw);

void vmw_vkms_modeset_lock(struct drm_crtc *crtc);
bool vmw_vkms_modeset_lock_relaxed(struct drm_crtc *crtc);
bool vmw_vkms_vblank_trylock(struct drm_crtc *crtc);
void vmw_vkms_unlock(struct drm_crtc *crtc);

bool vmw_vkms_handle_vblank_timeout(struct drm_crtc *crtc);
bool vmw_vkms_get_vblank_timestamp(struct drm_crtc *crtc,
				   int *max_error,
				   ktime_t *vblank_time,
				   bool in_vblank_irq);
int vmw_vkms_enable_vblank(struct drm_crtc *crtc);
void vmw_vkms_disable_vblank(struct drm_crtc *crtc);

void vmw_vkms_crtc_init(struct drm_crtc *crtc);
void vmw_vkms_crtc_cleanup(struct drm_crtc *crtc);
void  vmw_vkms_crtc_atomic_begin(struct drm_crtc *crtc,
				 struct drm_atomic_commit *state);
void vmw_vkms_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_commit *state);
void vmw_vkms_crtc_atomic_enable(struct drm_crtc *crtc,
				 struct drm_atomic_commit *state);
void vmw_vkms_crtc_atomic_disable(struct drm_crtc *crtc,
				  struct drm_atomic_commit *state);

const char *const *vmw_vkms_get_crc_sources(struct drm_crtc *crtc,
					    size_t *count);
int vmw_vkms_verify_crc_source(struct drm_crtc *crtc,
			       const char *src_name,
			       size_t *values_cnt);
int vmw_vkms_set_crc_source(struct drm_crtc *crtc,
			    const char *src_name);
void vmw_vkms_set_crc_surface(struct drm_crtc *crtc,
			      struct vmw_surface *surf);

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct drm_atomic_commit`, `struct drm_crtc`, `struct vmw_private`, `struct vmw_surface`.
• 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.