diff options
Diffstat (limited to 'include/common.h')
| -rw-r--r-- | include/common.h | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/include/common.h b/include/common.h index 7cf15c5..39859d3 100644 --- a/include/common.h +++ b/include/common.h @@ -760,6 +760,16 @@ char * strmhz(char *buf, unsigned long hz); /* lib/crc32.c */ #include <u-boot/crc.h> +/* lib/rand.c */ +#if defined(CONFIG_RANDOM_MACADDR) || \ + defined(CONFIG_BOOTP_RANDOM_DELAY) || \ + defined(CONFIG_CMD_LINK_LOCAL) +#define RAND_MAX -1U +void srand(unsigned int seed); +unsigned int rand(void); +unsigned int rand_r(unsigned int *seedp); +#endif + /* common/console.c */ int console_init_f(void); /* Before relocation; uses the serial stuff */ int console_init_r(void); /* After relocation; uses the console stuff */ @@ -934,11 +944,25 @@ int cpu_release(int nr, int argc, char * const argv[]); * of a function scoped static buffer. It can not be used to create a cache * line aligned global buffer. */ +#define ALLOC_ALIGN_BUFFER(type, name, size, align) \ + char __##name[ROUND(size * sizeof(type), align) + (align - 1)]; \ + \ + type *name = (type *) ALIGN((uintptr_t)__##name, align) #define ALLOC_CACHE_ALIGN_BUFFER(type, name, size) \ - char __##name[ROUND(size * sizeof(type), ARCH_DMA_MINALIGN) + \ - ARCH_DMA_MINALIGN - 1]; \ + ALLOC_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) + +/* + * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's + * purpose is to allow allocating aligned buffers outside of function scope. + * Usage of this macro shall be avoided or used with extreme care! + */ +#define DEFINE_ALIGN_BUFFER(type, name, size, align) \ + static char __##name[roundup(size * sizeof(type), align)] \ + __attribute__((aligned(align))); \ \ - type *name = (type *) ALIGN((uintptr_t)__##name, ARCH_DMA_MINALIGN) + static type *name = (type *)__##name +#define DEFINE_CACHE_ALIGN_BUFFER(type, name, size) \ + DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) /* Pull in stuff for the build system */ #ifdef DO_DEPS_ONLY |