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arm64: arch_timer: Add HISILICON_ERRATUM_161010101 ACPI matching data

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In order to deal with ACPI enabled platforms suffering from the
HISILICON_ERRATUM_161010101, let's add the required OEM data that
allow the workaround to be enabled.

Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: dann frazier <dann.frazier@canonical.com>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2017-02-21 15:04:27 +00:00
parent 5a38bcac1f
commit d003d029ce
1 changed files with 33 additions and 0 deletions
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33
drivers/clocksource/arm_arch_timer.c
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@ -270,6 +270,29 @@ static u64 notrace hisi_161010101_read_cntvct_el0(void)
{
return __hisi_161010101_read_reg(cntvct_el0);
}
static struct ate_acpi_oem_info hisi_161010101_oem_info[] = {
/*
* Note that trailing spaces are required to properly match
* the OEM table information.
*/
{
.oem_id = "HISI ",
.oem_table_id = "HIP05 ",
.oem_revision = 0,
},
{
.oem_id = "HISI ",
.oem_table_id = "HIP06 ",
.oem_revision = 0,
},
{
.oem_id = "HISI ",
.oem_table_id = "HIP07 ",
.oem_revision = 0,
},
{ /* Sentinel indicating the end of the OEM array */ },
};
#endif
#ifdef CONFIG_ARM64_ERRATUM_858921
@ -347,6 +370,16 @@ static const struct arch_timer_erratum_workaround ool_workarounds[] = {
.set_next_event_phys = erratum_set_next_event_tval_phys,
.set_next_event_virt = erratum_set_next_event_tval_virt,
},
{
.match_type = ate_match_acpi_oem_info,
.id = hisi_161010101_oem_info,
.desc = "HiSilicon erratum 161010101",
.read_cntp_tval_el0 = hisi_161010101_read_cntp_tval_el0,
.read_cntv_tval_el0 = hisi_161010101_read_cntv_tval_el0,
.read_cntvct_el0 = hisi_161010101_read_cntvct_el0,
.set_next_event_phys = erratum_set_next_event_tval_phys,
.set_next_event_virt = erratum_set_next_event_tval_virt,
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_858921
{