drivers/gpu/drm/amd/display/dc/sspl/dc_spl_isharp_filters.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/sspl/dc_spl_isharp_filters.h

Extension

.h

Size

1248 bytes

Lines

45

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

• dc_spl_types.h

Detected Declarations

• struct scale_ratio_to_sharpness_level_adj
• struct isharp_1D_lut_pregen
• enum system_setup

Annotated Snippet

struct scale_ratio_to_sharpness_level_adj {
	unsigned int ratio_numer;
	unsigned int ratio_denom;
	unsigned int level_down_adj; /* adjust sharpness level down */
};

struct isharp_1D_lut_pregen {
	unsigned int sharpness_numer;
	unsigned int sharpness_denom;
	uint32_t value[ISHARP_LUT_TABLE_SIZE];
};

enum system_setup {
	SDR_NL = 0,
	SDR_L,
	HDR_NL,
	HDR_L,
	NUM_SHARPNESS_SETUPS
};

void SPL_NAMESPACE(spl_set_blur_scale_data(struct dscl_prog_data *dscl_prog_data,
	const struct spl_scaler_data *data));

void SPL_NAMESPACE(spl_build_isharp_1dlut_from_reference_curve(
	struct spl_fixed31_32 ratio, enum system_setup setup,
	struct adaptive_sharpness sharpness,
	enum scale_to_sharpness_policy scale_to_sharpness_policy));
uint32_t *SPL_NAMESPACE(spl_get_pregen_filter_isharp_1D_lut(enum system_setup setup));

// public API
const uint16_t *SPL_NAMESPACE(spl_dscl_get_blur_scale_coeffs_64p(int taps));
const uint16_t *SPL_NAMESPACE(spl_dscl_get_blur_scale_coeffs_64p_s1_10(int taps));

#endif /* __DC_SPL_ISHARP_FILTERS_H__ */

Annotation

• Immediate include surface: `dc_spl_types.h`.
• Detected declarations: `struct scale_ratio_to_sharpness_level_adj`, `struct isharp_1D_lut_pregen`, `enum system_setup`.
• 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.