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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1770 bytes

Lines

41

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_reg_value_lookup

Annotated Snippet

struct scale_ratio_to_reg_value_lookup {
	int numer;
	int denom;
	const uint32_t reg_value;
};

void SPL_NAMESPACE(spl_set_filters_data(struct dscl_prog_data *dscl_prog_data,
	const struct spl_scaler_data *data, bool enable_easf_v,
	bool enable_easf_h));

uint32_t SPL_NAMESPACE(spl_get_v_bf3_mode(struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_h_bf3_mode(struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_reducer_gain6(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_reducer_gain4(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_gainRing6(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_gainRing4(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_3tap_dntilt_uptilt_offset(
	int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_3tap_uptilt_maxval(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_3tap_dntilt_slope(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_3tap_uptilt1_slope(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_3tap_uptilt2_slope(int taps, struct spl_fixed31_32 ratio));
uint32_t SPL_NAMESPACE(spl_get_3tap_uptilt2_offset(int taps, struct spl_fixed31_32 ratio));

/* public API */
const uint16_t *SPL_NAMESPACE(spl_dscl_get_easf_filter_coeffs_64p(
	int taps, struct spl_fixed31_32 ratio));
const uint16_t *SPL_NAMESPACE(spl_dscl_get_easf_filter_coeffs_64p_s1_10(
	int taps, struct spl_fixed31_32 ratio));

#endif /* __DC_SPL_SCL_EASF_FILTERS_H__ */

Annotation

• Immediate include surface: `dc_spl_types.h`.
• Detected declarations: `struct scale_ratio_to_reg_value_lookup`.
• 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.