diff options
Diffstat (limited to 'arch/x86/include/asm/mtrr.h')
| -rw-r--r-- | arch/x86/include/asm/mtrr.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h index 384672e93f..d1aa86bf1d 100644 --- a/arch/x86/include/asm/mtrr.h +++ b/arch/x86/include/asm/mtrr.h @@ -119,7 +119,7 @@ void mtrr_close(struct mtrr_state *state, bool do_caches); * * @type: Requested type (MTRR_TYPE_) * @start: Start address - * @size: Size + * @size: Size, must be power of 2 * * @return: 0 on success, non-zero on failure */ @@ -144,8 +144,9 @@ int mtrr_commit(bool do_caches); * * @type: Requested type (MTRR_TYPE_) * @start: Start address - * @size: Size - * @return 0 on success, -ENOSPC if there are no more MTRRs + * @size: Size, must be power of 2 + * @return 0 on success, -EINVAL if size is not power of 2, + * -ENOSPC if there are no more MTRRs */ int mtrr_set_next_var(uint type, uint64_t base, uint64_t size); |