drivers/gpu/drm/nouveau/include/nvif/if0001.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/include/nvif/if0001.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/include/nvif/if0001.h
Extension
.h
Size
1713 bytes
Lines
48
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 nvif_control_pstate_info_v0 {
	__u8  version;
	__u8  count; /* out: number of power states */
#define NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE                         (-1)
#define NVIF_CONTROL_PSTATE_INFO_V0_USTATE_PERFMON                         (-2)
	__s8  ustate_ac; /* out: target pstate index */
	__s8  ustate_dc; /* out: target pstate index */
	__s8  pwrsrc; /* out: current power source */
#define NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_UNKNOWN                         (-1)
#define NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_PERFMON                         (-2)
	__s8  pstate; /* out: current pstate index */
	__u8  pad06[2];
};

struct nvif_control_pstate_attr_v0 {
	__u8  version;
#define NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT                          (-1)
	__s8  state; /*  in: index of pstate to query
		      * out: pstate identifier
		      */
	__u8  index; /*  in: index of attribute to query
		      * out: index of next attribute, or 0 if no more
		      */
	__u8  pad03[5];
	__u32 min;
	__u32 max;
	char  name[32];
	char  unit[16];
};

struct nvif_control_pstate_user_v0 {
	__u8  version;
#define NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN                          (-1)
#define NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON                          (-2)
	__s8  ustate; /*  in: pstate identifier */
	__s8  pwrsrc; /*  in: target power source */
	__u8  pad03[5];
};
#endif

Annotation

Implementation Notes