diff options
| author | Jacky Bai <ping.bai@nxp.com> | 2020-01-07 11:05:22 +0800 |
|---|---|---|
| committer | Jacky Bai <ping.bai@nxp.com> | 2020-02-09 20:58:49 +0800 |
| commit | 4bd311ed653851ba3bb1cdad04dd40b98c241491 (patch) | |
| tree | 7973f9c7630c4d0b27af224fa774e6c166336ba9 /plat/imx/imx8m/include | |
| parent | a487b734b98734bf49c5ae04d91b70460587b1fe (diff) | |
plat: imx8m: Fix the race condition during cpu hotplug
CPU hotplug & cpuidle have some race condition when doing CPU hotplug
stress test. different CPU cores have the chance to access the same
GPC register(A53_AD), so lock is necessary to do exlusive access.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Diffstat (limited to 'plat/imx/imx8m/include')
| -rw-r--r-- | plat/imx/imx8m/include/gpc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/plat/imx/imx8m/include/gpc.h b/plat/imx/imx8m/include/gpc.h index d7e72228..3ea7d8ee 100644 --- a/plat/imx/imx8m/include/gpc.h +++ b/plat/imx/imx8m/include/gpc.h @@ -117,6 +117,8 @@ struct imx_pwr_domain { bool init_on; }; +DECLARE_BAKERY_LOCK(gpc_lock); + /* function declare */ void imx_gpc_init(void); void imx_set_cpu_secure_entry(unsigned int core_index, uintptr_t sec_entrypoint); |