1 /** 2 * \file drm_os_freebsd.h 3 * OS abstraction macros. 4 */ 5 6 #include <sys/cdefs.h> 7 __FBSDID("$FreeBSD$"); 8 9 #include <sys/fbio.h> 10 11 #if _BYTE_ORDER == _BIG_ENDIAN 12 #define __BIG_ENDIAN 4321 13 #else 14 #define __LITTLE_ENDIAN 1234 15 #endif 16 17 #define cpu_to_le16(x) htole16(x) 18 #define le16_to_cpu(x) le16toh(x) 19 #define cpu_to_le32(x) htole32(x) 20 #define le32_to_cpu(x) le32toh(x) 21 22 #define cpu_to_be16(x) htobe16(x) 23 #define be16_to_cpu(x) be16toh(x) 24 #define cpu_to_be32(x) htobe32(x) 25 #define be32_to_cpu(x) be32toh(x) 26 #define be32_to_cpup(x) be32toh(*x) 27 28 typedef vm_paddr_t dma_addr_t; 29 typedef uint64_t u64; 30 typedef uint32_t u32; 31 typedef uint16_t u16; 32 typedef uint8_t u8; 33 typedef int64_t s64; 34 typedef int32_t s32; 35 typedef int16_t s16; 36 typedef int8_t s8; 37 typedef int32_t __be32; 38 39 #define unlikely(x) __builtin_expect(!!(x), 0) 40 #define likely(x) __builtin_expect(!!(x), 1) 41 #define container_of(ptr, type, member) ({ \ 42 __typeof( ((type *)0)->member ) *__mptr = (ptr); \ 43 (type *)( (char *)__mptr - offsetof(type,member) );}) 44 45 #define DRM_HZ hz 46 #define DRM_UDELAY(udelay) DELAY(udelay) 47 #define DRM_MDELAY(msecs) do { int loops = (msecs); \ 48 while (loops--) DELAY(1000); \ 49 } while (0) 50 #define DRM_MSLEEP(msecs) drm_msleep((msecs), "drm_msleep") 51 #define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ 52 53 #define do_div(a, b) ((a) /= (b)) 54 #define lower_32_bits(n) ((u32)(n)) 55 56 #define min_t(type, x, y) ({ \ 57 type __min1 = (x); \ 58 type __min2 = (y); \ 59 __min1 < __min2 ? __min1 : __min2; }) 60 61 #define max_t(type, x, y) ({ \ 62 type __max1 = (x); \ 63 type __max2 = (y); \ 64 __max1 > __max2 ? __max1 : __max2; }) 65 66 #define memset_io(a, b, c) memset((a), (b), (c)) 67 #define memcpy_fromio(a, b, c) memcpy((a), (b), (c)) 68 #define memcpy_toio(a, b, c) memcpy((a), (b), (c)) 69 70 /* XXXKIB what is the right code for the FreeBSD ? */ 71 /* kib@ used ENXIO here -- dumbbell@ */ 72 #define EREMOTEIO EIO 73 #define ERESTARTSYS ERESTART 74 75 #define KTR_DRM KTR_DEV 76 #define KTR_DRM_REG KTR_SPARE3 77 78 #define PCI_VENDOR_ID_APPLE 0x106b 79 #define PCI_VENDOR_ID_ASUSTEK 0x1043 80 #define PCI_VENDOR_ID_ATI 0x1002 81 #define PCI_VENDOR_ID_DELL 0x1028 82 #define PCI_VENDOR_ID_HP 0x103c 83 #define PCI_VENDOR_ID_IBM 0x1014 84 #define PCI_VENDOR_ID_INTEL 0x8086 85 #define PCI_VENDOR_ID_SERVERWORKS 0x1166 86 #define PCI_VENDOR_ID_SONY 0x104d 87 #define PCI_VENDOR_ID_VIA 0x1106 88 89 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) 90 #define hweight32(i) bitcount32(i) 91 92 static inline unsigned long 93 roundup_pow_of_two(unsigned long x) 94 { 95 return (1UL << flsl(x - 1)); 96 } 97 98 /** 99 * ror32 - rotate a 32-bit value right 100 * @word: value to rotate 101 * @shift: bits to roll 102 * 103 * Source: include/linux/bitops.h 104 */ 105 static inline uint32_t ror32(uint32_t word, unsigned int shift) 106 { 107 return (word >> shift) | (word << (32 - shift)); 108 } 109 110 #define IS_ALIGNED(x, y) (((x) & ((y) - 1)) == 0) 111 #define get_unaligned(ptr) \ 112 ({ __typeof__(*(ptr)) __tmp; \ 113 memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; }) 114 115 #if _BYTE_ORDER == _LITTLE_ENDIAN 116 /* Taken from linux/include/linux/unaligned/le_struct.h. */ 117 struct __una_u32 { u32 x; } __packed; 118 119 static inline u32 __get_unaligned_cpu32(const void *p) 120 { 121 const struct __una_u32 *ptr = (const struct __una_u32 *)p; 122 return ptr->x; 123 } 124 125 static inline u32 get_unaligned_le32(const void *p) 126 { 127 return __get_unaligned_cpu32((const u8 *)p); 128 } 129 #else 130 /* Taken from linux/include/linux/unaligned/le_byteshift.h. */ 131 static inline u32 __get_unaligned_le32(const u8 *p) 132 { 133 return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24; 134 } 135 136 static inline u32 get_unaligned_le32(const void *p) 137 { 138 return __get_unaligned_le32((const u8 *)p); 139 } 140 #endif 141 142 #define KIB_NOTYET() \ 143 do { \ 144 if (drm_debug_flag && drm_notyet_flag) \ 145 printf("NOTYET: %s at %s:%d\n", __func__, __FILE__, __LINE__); \ 146 } while (0) 147