tools/testing/selftests/riscv/hwprobe/hwprobe.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef SELFTEST_RISCV_HWPROBE_H
   3 #define SELFTEST_RISCV_HWPROBE_H
   4 #include <stddef.h>
   5 #include <asm/hwprobe.h>
   6
   7 #if __BYTE_ORDER == __BIG_ENDIAN
   8 # define le32_bswap(_x)                         \
   9         ((((_x) & 0x000000ffU) << 24) |         \
  10          (((_x) & 0x0000ff00U) <<  8) |         \
  11          (((_x) & 0x00ff0000U) >>  8) |         \
  12          (((_x) & 0xff000000U) >> 24))
  13 #else
  14 # define le32_bswap(_x) (_x)
  15 #endif
  16
  17 /*
  18  * Rather than relying on having a new enough libc to define this, just do it
  19  * ourselves.  This way we don't need to be coupled to a new-enough libc to
  20  * contain the call.
  21  */
  22 long riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count,
  23                    size_t cpusetsize, unsigned long *cpus, unsigned int flags);
  24
  25 #endif