drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
Extension
.h
Size
2130 bytes
Lines
77
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 dpu_core_perf_params {
	u32 max_per_pipe_ib;
	u64 bw_ctl;
	u64 core_clk_rate;
};

/**
 * struct dpu_core_perf_tune - definition of performance tuning control
 * @mode: performance mode
 */
struct dpu_core_perf_tune {
	u32 mode;
};

/**
 * struct dpu_core_perf - definition of core performance context
 * @perf_cfg: Platform-specific performance configuration
 * @core_clk_rate: current core clock rate
 * @max_core_clk_rate: maximum allowable core clock rate
 * @perf_tune: debug control for performance tuning
 * @enable_bw_release: debug control for bandwidth release
 * @fix_core_clk_rate: fixed core clock request in Hz used in mode 2
 * @fix_core_ib_vote: fixed core ib vote in KBps used in mode 2
 * @fix_core_ab_vote: fixed core ab vote in KBps used in mode 2
 */
struct dpu_core_perf {
	const struct dpu_perf_cfg *perf_cfg;
	u64 core_clk_rate;
	u64 max_core_clk_rate;
	struct dpu_core_perf_tune perf_tune;
	u32 enable_bw_release;
	u64 fix_core_clk_rate;
	u32 fix_core_ib_vote;
	u32 fix_core_ab_vote;
};

u64 dpu_core_perf_adjusted_mode_clk(u64 clk_rate,
				    const struct dpu_perf_cfg *perf_cfg);

int dpu_core_perf_crtc_check(struct drm_crtc *crtc,
		struct drm_crtc_state *state);

int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
			      int params_changed);

void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc);

int dpu_core_perf_init(struct dpu_core_perf *perf,
		const struct dpu_perf_cfg *perf_cfg,
		unsigned long max_core_clk_rate);

struct dpu_kms;

int dpu_core_perf_debugfs_init(struct dpu_kms *dpu_kms, struct dentry *parent);

#endif /* _DPU_CORE_PERF_H_ */

Annotation

Implementation Notes