On 22/6/2022 21:38, Rafael J. Wysocki wrote:
Please CC linux-acpi@xxxxxxxxxxxxxxx on ACPI-related changes (added now).
Ok.
On Wed, Jun 22, 2022 at 5:29 AM Tony W Wang-oc <TonyWWang-oc@xxxxxxxxxxx> wrote:Recent Zhaoxin CPUs support X86_FEATURE_MWAIT that implies the MONITOR/MWAIT instructions can be used for ACPI Cx state. The BIOS declares Cx state in _CST object to use FFH on Zhaoxin systems. So let function ffh_cstate_init() support Zhaoxin too. Signed-off-by: Tony W Wang-oc <TonyWWang-oc@xxxxxxxxxxx> --- arch/x86/kernel/acpi/cstate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 7945eae..d4185e1 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -213,7 +213,9 @@ static int __init ffh_cstate_init(void) if (c->x86_vendor != X86_VENDOR_INTEL && c->x86_vendor != X86_VENDOR_AMD && - c->x86_vendor != X86_VENDOR_HYGON) + c->x86_vendor != X86_VENDOR_HYGON && + c->x86_vendor != X86_VENDOR_CENTAUR && + c->x86_vendor != X86_VENDOR_ZHAOXIN)Centaur is not mentioned in the changelog and it should be.
Will add Centaur in the changelog. Thanks a lot.
return -1; cpu_cstate_entry = alloc_percpu(struct cstate_entry); --.
-- Sincerely TonyWWang-oc
