| commit | 6a34c928c2ac9fce926b1348d61dae34262e3f77 | |
| author | Wilco Dijkstra <wilco.dijkstra@arm.com> | |
| Thu, 1 Jul 2021 14:42:05 +0000 (1 15:42 +0100) | ||
| committer | Wilco Dijkstra <wdijkstr@arm.com> | |
| Thu, 1 Jul 2021 14:42:05 +0000 (1 15:42 +0100) | ||
| tree | bc0f927f7d6191b3338d59cc69a64291db993de4 | treesnapshot (tar.gz zip) |
| parent | 252cad02d4c63540501b9b8c988cb91248563224 | commitdiff |
AArch64: Add hp-timing.h
Add hp-timing.h using the cntvct_el0 counter. Return timing in nanoseconds
so it is fully compatible with generic hp-timing. Don't set HP_TIMING_INLINE
in the dynamic linker since it adds unnecessary overheads and some ancient
kernels may not handle emulating cntcvt correctly. Currently cntvct_el0 is
only used for timing in the benchtests.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Add hp-timing.h using the cntvct_el0 counter. Return timing in nanoseconds
so it is fully compatible with generic hp-timing. Don't set HP_TIMING_INLINE
in the dynamic linker since it adds unnecessary overheads and some ancient
kernels may not handle emulating cntcvt correctly. Currently cntvct_el0 is
only used for timing in the benchtests.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
| sysdeps/aarch64/hp-timing.h | [new file with mode: 0644] | blob |