Hi, Guenter, On 25 May 2015 at 01:32, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > On 05/24/2015 10:19 AM, Timur Tabi wrote: >> >> Fu Wei wrote: >>> >>> I don't know why you want to do this tricky way. you can always >>> register the interrupt handler, >>> if pre-timeout is 0, system will just trigger WS1 right after WS0 >> >> >> But that only works if the pre-timeout and timeout can be programmed to >> separate values. And as Guenter says, the SBSA may not guarantee that. >> > > The pseudo-code in the specification suggests that if WCV is configured, > WS0 = WCV > WS1 = WCV + WOR > > Assuming that the implementation follows the pseudo-code in the > specification, > we would have separately programmable values. Since the pretimeout (per ABI) > is the difference in seconds to the timeout, and not an absolute value, > we would have to program the registers as follows. > > WCV = timeout - pretimeout; > WOR = pretimeout; yes, this patchset is doing this way. > > Does this make sense ? > > Thanks, > Guenter > -- Best regards, Fu Wei Software Engineer Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch Ph: +86 21 61221326(direct) Ph: +86 186 2020 4684 (mobile) Room 1512, Regus One Corporate Avenue,Level 15, One Corporate Avenue,222 Hubin Road,Huangpu District, Shanghai,China 200021 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
