1 #ifndef __ASM_ARM_TYPES_H
2 #define __ASM_ARM_TYPES_H
4 typedef unsigned short umode_t;
7 * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
8 * header files exported to user space
11 typedef __signed__ char __s8;
12 typedef unsigned char __u8;
14 typedef __signed__ short __s16;
15 typedef unsigned short __u16;
17 typedef __signed__ int __s32;
18 typedef unsigned int __u32;
21 __extension__ typedef __signed__ long long __s64;
22 __extension__ typedef unsigned long long __u64;
26 * These aren't exported outside the kernel to avoid name space clashes
30 typedef signed char s8;
31 typedef unsigned char u8;
33 typedef signed short s16;
34 typedef unsigned short u16;
36 typedef signed int s32;
37 typedef unsigned int u32;
39 typedef signed long long s64;
40 typedef unsigned long long u64;
43 #define BITS_PER_LONG 64
44 #else /* CONFIG_ARM64 */
45 #define BITS_PER_LONG 32
46 #endif /* CONFIG_ARM64 */
48 #ifdef CONFIG_PHYS_64BIT
49 typedef unsigned long long phys_addr_t;
50 typedef unsigned long long phys_size_t;
52 /* DMA addresses are 32-bits wide */
53 typedef unsigned long phys_addr_t;
54 typedef unsigned long phys_size_t;
58 * A dma_addr_t can hold any valid DMA address, i.e., any address returned
61 * If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32
62 * bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits,
63 * but drivers do memory-mapped I/O to ioremapped kernel virtual addresses,
64 * so they don't care about the size of the actual bus addresses.
66 #ifdef CONFIG_DMA_ADDR_T_64BIT
67 typedef unsigned long long dma_addr_t;
69 typedef u32 dma_addr_t;
72 #endif /* __KERNEL__ */