| commit | 44224bdb99150ad17cf394973b25736cb92c246a | [log] [tgz] |
|---|---|---|
| author | John David Anglin <dave.anglin@bell.net> | Sun Apr 21 19:47:17 2019 -0400 |
| committer | Helge Deller <deller@gmx.de> | Fri May 03 23:47:40 2019 +0200 |
| tree | 68f2e534928afaa3ca2ca42943bf00e24fbe9ac5 | |
| parent | 9e5c602186a692a7e848c0da17aed40f49d30519 [diff] |
parisc: Add memory clobber to TLB purges
The pdtlb and pitlb instructions are strongly ordered. The asms invoking
these instructions should be compiler memory barriers to ensure the
compiler doesn't reorder memory operations around these instructions.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
CC: stable@vger.kernel.org # v4.20+
Fixes: 3847dab77421 ("parisc: Add alternative coding infrastructure")
Signed-off-by: Helge Deller <deller@gmx.de>