include/linux/goldfish.h

Source file repositories/reference/linux-study-clean/include/linux/goldfish.h

File Facts

System
Linux kernel
Corpus path
include/linux/goldfish.h
Extension
.h
Size
878 bytes
Lines
41
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __LINUX_GOLDFISH_H
#define __LINUX_GOLDFISH_H

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/io.h>

/* Helpers for Goldfish virtual platform */

#ifndef gf_ioread32
#define gf_ioread32 ioread32
#endif
#ifndef gf_iowrite32
#define gf_iowrite32 iowrite32
#endif

static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
				void __iomem *porth)
{
	const unsigned long addr = (unsigned long)ptr;

	gf_iowrite32(lower_32_bits(addr), portl);
#ifdef CONFIG_64BIT
	gf_iowrite32(upper_32_bits(addr), porth);
#endif
}

static inline void gf_write_dma_addr(const dma_addr_t addr,
				     void __iomem *portl,
				     void __iomem *porth)
{
	gf_iowrite32(lower_32_bits(addr), portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
	gf_iowrite32(upper_32_bits(addr), porth);
#endif
}


#endif /* __LINUX_GOLDFISH_H */

Annotation

Implementation Notes