drivers/video/fbdev/riva/riva_hw.h

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/riva/riva_hw.h

File Facts

System: Linux kernel
Corpus path: drivers/video/fbdev/riva/riva_hw.h
Extension: .h
Size: 15705 bytes
Lines: 565
Domain: Driver Families
Bucket: drivers/video
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

asm/io.h

Detected Declarations

struct _riva_hw_inst
struct _riva_hw_state

Annotated Snippet

while ((hwinst).FifoFreeCount < (cnt)) {                        \
	mb();mb();						    \
        (hwinst).FifoFreeCount = NV_RD32(&(hwinst).hwptr->FifoFree, 0) >> 2;     \
    }								    \
    (hwinst).FifoFreeCount -= (cnt);                                \
}
#endif /* __RIVA_HW_H__ */

Annotation

Immediate include surface: `asm/io.h`.
Detected declarations: `struct _riva_hw_inst`, `struct _riva_hw_state`.
Atlas domain: Driver Families / drivers/video.
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.