drivers/gpu/drm/hyperv/hyperv_drm.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/hyperv/hyperv_drm.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/hyperv/hyperv_drm.h
Extension
.h
Size
1294 bytes
Lines
56
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

struct hyperv_drm_device {
	/* drm */
	struct drm_device dev;
	struct drm_plane plane;
	struct drm_crtc crtc;
	struct drm_encoder encoder;
	struct drm_connector connector;

	/* mode */
	u32 screen_width_max;
	u32 screen_height_max;
	u32 preferred_width;
	u32 preferred_height;
	u32 screen_depth;

	/* hw */
	struct resource *mem;
	void __iomem *vram;
	unsigned long fb_base;
	unsigned long fb_size;
	struct completion wait;
	u32 synthvid_version;
	u32 mmio_megabytes;
	bool dirt_needed;

	u8 init_buf[VMBUS_MAX_PACKET_SIZE];
	u8 recv_buf[VMBUS_MAX_PACKET_SIZE];

	struct hv_device *hdev;
};

#define to_hv(_dev) container_of(_dev, struct hyperv_drm_device, dev)

/* hyperv_drm_modeset */
int hyperv_mode_config_init(struct hyperv_drm_device *hv);

/* hyperv_drm_proto */
int hyperv_update_vram_location(struct hv_device *hdev, phys_addr_t vram_pp);
int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,
			    u32 w, u32 h, u32 pitch);
int hyperv_hide_hw_ptr(struct hv_device *hdev);
int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
int hyperv_connect_vsp(struct hv_device *hdev);

#endif

Annotation

Implementation Notes