答复: [PATCH] x86/acpi/cstate delete some unuseful operations

2018-01-15 Thread Tim Guo(BJ-RD)
; Qiyuan Wang(BJ-RD) ; Benjamin Pan 主题: 答复: [PATCH] x86/acpi/cstate delete some unuseful operations Dear Rafael, Sorry to miss this mail. I understood that it was not necessary to disable bus master arbitration on C3 entry for Centaur CPUs, which is why you clear bm_control, right? [Comment b

答复: [PATCH] x86/acpi/cstate delete some unuseful operations

2018-01-09 Thread Tim Guo(BJ-RD)
Dear Rafael, Sorry to miss this mail. I understood that it was not necessary to disable bus master arbitration on C3 entry for Centaur CPUs, which is why you clear bm_control, right? [Comment by Tim] Yes. And the goal is to reduce the C3 latency, but I'm not sure about the cache flushing part.