diff options
Diffstat (limited to 'include/linux/coresight.h')
| -rw-r--r-- | include/linux/coresight.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/coresight.h b/include/linux/coresight.h index bf70987240e4..255cfd283883 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -386,6 +386,18 @@ static inline u32 csdev_access_relaxed_read32(struct csdev_access *csa, return csa->read(offset, true, false); } +#define CORESIGHT_PIDRn(i) (0xFE0 + ((i) * 4)) + +static inline u32 coresight_get_pid(struct csdev_access *csa) +{ + u32 i, pid = 0; + + for (i = 0; i < 4; i++) + pid |= csdev_access_relaxed_read32(csa, CORESIGHT_PIDRn(i)) << (i * 8); + + return pid; +} + static inline u64 csdev_access_relaxed_read_pair(struct csdev_access *csa, u32 lo_offset, u32 hi_offset) { |