drm_os_freebsd.h revision 254858
1/** 2 * \file drm_os_freebsd.h 3 * OS abstraction macros. 4 */ 5 6#include <sys/cdefs.h> 7__FBSDID("$FreeBSD: head/sys/dev/drm2/drm_os_freebsd.h 254858 2013-08-25 14:27:14Z dumbbell $"); 8 9#if _BYTE_ORDER == _BIG_ENDIAN 10#define __BIG_ENDIAN 4321 11#else 12#define __LITTLE_ENDIAN 1234 13#endif 14 15#define cpu_to_le16(x) htole16(x) 16#define le16_to_cpu(x) le16toh(x) 17#define cpu_to_le32(x) htole32(x) 18#define le32_to_cpu(x) le32toh(x) 19 20#define cpu_to_be16(x) htobe16(x) 21#define be16_to_cpu(x) be16toh(x) 22#define cpu_to_be32(x) htobe32(x) 23#define be32_to_cpu(x) be32toh(x) 24#define be32_to_cpup(x) be32toh(*x) 25 26typedef vm_paddr_t dma_addr_t; 27typedef uint64_t u64; 28typedef uint32_t u32; 29typedef uint16_t u16; 30typedef uint8_t u8; 31typedef int64_t s64; 32typedef int32_t s32; 33typedef int16_t s16; 34typedef int8_t s8; 35typedef int32_t __be32; 36 37#define unlikely(x) __builtin_expect(!!(x), 0) 38#define likely(x) __builtin_expect(!!(x), 1) 39#define container_of(ptr, type, member) ({ \ 40 __typeof( ((type *)0)->member ) *__mptr = (ptr); \ 41 (type *)( (char *)__mptr - offsetof(type,member) );}) 42 43#define DRM_HZ hz 44#define DRM_UDELAY(udelay) DELAY(udelay) 45#define DRM_MDELAY(msecs) do { int loops = (msecs); \ 46 while (loops--) DELAY(1000); \ 47 } while (0) 48#define DRM_MSLEEP(msecs) drm_msleep((msecs), "drm_msleep") 49#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 50 51#define do_div(a, b) ((a) /= (b)) 52#define lower_32_bits(n) ((u32)(n)) 53 54#define min_t(type, x, y) ({ \ 55 type __min1 = (x); \ 56 type __min2 = (y); \ 57 __min1 < __min2 ? __min1 : __min2; }) 58 59#define max_t(type, x, y) ({ \ 60 type __max1 = (x); \ 61 type __max2 = (y); \ 62 __max1 > __max2 ? __max1 : __max2; }) 63 64#define memset_io(a, b, c) memset((a), (b), (c)) 65#define memcpy_fromio(a, b, c) memcpy((a), (b), (c)) 66#define memcpy_toio(a, b, c) memcpy((a), (b), (c)) 67 68/* XXXKIB what is the right code for the FreeBSD ? */ 69/* kib@ used ENXIO here -- dumbbell@ */ 70#define EREMOTEIO EIO 71#define ERESTARTSYS ERESTART 72 73#define KTR_DRM KTR_DEV 74#define KTR_DRM_REG KTR_SPARE3 75 76#define PCI_VENDOR_ID_APPLE 0x106b 77#define PCI_VENDOR_ID_ASUSTEK 0x1043 78#define PCI_VENDOR_ID_ATI 0x1002 79#define PCI_VENDOR_ID_DELL 0x1028 80#define PCI_VENDOR_ID_HP 0x103c 81#define PCI_VENDOR_ID_IBM 0x1014 82#define PCI_VENDOR_ID_INTEL 0x8086 83#define PCI_VENDOR_ID_SERVERWORKS 0x1166 84#define PCI_VENDOR_ID_SONY 0x104d 85#define PCI_VENDOR_ID_VIA 0x1106 86 87#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) 88#define hweight32(i) bitcount32(i) 89 90static inline unsigned long 91roundup_pow_of_two(unsigned long x) 92{ 93 return (1UL << flsl(x - 1)); 94} 95 96/** 97 * ror32 - rotate a 32-bit value right 98 * @word: value to rotate 99 * @shift: bits to roll 100 * 101 * Source: include/linux/bitops.h 102 */ 103static inline uint32_t ror32(uint32_t word, unsigned int shift) 104{ 105 return (word >> shift) | (word << (32 - shift)); 106} 107 108#define IS_ALIGNED(x, y) (((x) & ((y) - 1)) == 0) 109#define get_unaligned(ptr) \ 110 ({ __typeof__(*(ptr)) __tmp; \ 111 memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; }) 112 113#if _BYTE_ORDER == _LITTLE_ENDIAN 114/* Taken from linux/include/linux/unaligned/le_struct.h. */ 115struct __una_u32 { u32 x; } __packed; 116 117static inline u32 __get_unaligned_cpu32(const void *p) 118{ 119 const struct __una_u32 *ptr = (const struct __una_u32 *)p; 120 return ptr->x; 121} 122 123static inline u32 get_unaligned_le32(const void *p) 124{ 125 return __get_unaligned_cpu32((const u8 *)p); 126} 127#else 128/* Taken from linux/include/linux/unaligned/le_byteshift.h. */ 129static inline u32 __get_unaligned_le32(const u8 *p) 130{ 131 return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24; 132} 133 134static inline u32 get_unaligned_le32(const void *p) 135{ 136 return __get_unaligned_le32((const u8 *)p); 137} 138#endif 139 140#define KIB_NOTYET() \ 141do { \ 142 if (drm_debug_flag && drm_notyet_flag) \ 143 printf("NOTYET: %s at %s:%d\n", __func__, __FILE__, __LINE__); \ 144} while (0) 145