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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-20 09:43:40 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-20 09:43:40 +0200
commitc4d41d00552754cc8cdd66a52da9b7c203884d49 (patch)
tree60be0f3d543ad6d300a033d91dc313bc595cd737 /drivers/clocksource/arm_arch_timer.c
parenthpilo: Replace one-element array with flexible-array member (diff)
parentLinux 5.8-rc6 (diff)
downloadwireguard-linux-c4d41d00552754cc8cdd66a52da9b7c203884d49.tar.xz
wireguard-linux-c4d41d00552754cc8cdd66a52da9b7c203884d49.zip
Merge v5.8-rc6 into char-misc-next
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/clocksource/arm_arch_timer.c')
-rw-r--r--drivers/clocksource/arm_arch_timer.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index ecf7b7db2d05..6c3e84180146 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -480,6 +480,14 @@ static const struct arch_timer_erratum_workaround ool_workarounds[] = {
.set_next_event_virt = erratum_set_next_event_tval_virt,
},
#endif
+#ifdef CONFIG_ARM64_ERRATUM_1418040
+ {
+ .match_type = ate_match_local_cap_id,
+ .id = (void *)ARM64_WORKAROUND_1418040,
+ .desc = "ARM erratum 1418040",
+ .disable_compat_vdso = true,
+ },
+#endif
};
typedef bool (*ate_match_fn_t)(const struct arch_timer_erratum_workaround *,
@@ -566,6 +574,9 @@ void arch_timer_enable_workaround(const struct arch_timer_erratum_workaround *wa
if (wa->read_cntvct_el0) {
clocksource_counter.vdso_clock_mode = VDSO_CLOCKMODE_NONE;
vdso_default = VDSO_CLOCKMODE_NONE;
+ } else if (wa->disable_compat_vdso && vdso_default != VDSO_CLOCKMODE_NONE) {
+ vdso_default = VDSO_CLOCKMODE_ARCHTIMER_NOCOMPAT;
+ clocksource_counter.vdso_clock_mode = vdso_default;
}
}