FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F7.0 2007-09-24T16:59:06Z 2007-09-24T16:59:06Z Nate Lawson njl@FreeBSD.org 2007-09-24T16:59:06Z urn:sha1:83dcc133d89dea69859b0bdf27399a8d31c1e88f polling/interrupt-driven fallback and instead use polling only during boot and pure interrupt-driven mode after boot. Polled mode could be relegated completely to a legacy role if we could enable interrupts during boot. Polled mode can be forced after boot by setting debug.acpi.ec.polled="1", i.e. if there are timeouts. - Use polling only during boot, shutdown, or if requested by the user. Otherwise, use a generation count of GPEs, incremented atomically. This prevents an old status value from being used if the EC is really slow and the same condition (i.e. multiple IBEs for a write transaction) is being checked. - Check for and run the query handler directly if the SCI bit is set in the status register during boot. Previously, the query handler wouldn't run until interrupts were finally enabled late in boot. - During boot and after starting a command, check if the event appears to already have occurred before we even start waiting. If so, it's possible the EC is very slow and we might accept an old status value. Print a warning in this case. Once we've booted, interrupt-driven mode should work just fine but polled mode could be unreliable. There's not much more we can do about this until interrupts are enabled during boot. - In the above case, we also do one final check if the interrupt-driven mode gets a timeout. If the status is complete, it will force the system back into polled mode since interrupt mode doesn't work. For polled mode during boot, if the status appears to be already complete before beginning the check loop, it waits 10 us before actually checking the status, just in case the EC is really slow and hasn't gotten to work on the new request yet. - Use upper-case hex for the _Qxx method - Use device_printf for errors, don't hide them under verbose - Increase default total timeout to 750 ms and decrease polling interval to 5 us. - Don't pass the status value via the softc. Just read it directly. - Remove the mutex. We use the sx lock for transaction serialization with the query handler. - Remove the Intel copyright notice as no code of theirs was ever present in this file (verified against rev 1.1) - Allow KTR module-only builds for ease of testing Thanks to jkim and Alexey Starikovskiy for helpful discussions and testing. Approved by: re MFC after: 2 weeks 2007-06-24T20:36:51Z Nate Lawson njl@FreeBSD.org 2007-06-24T20:36:51Z urn:sha1:81cd8a5bf0840d41d604d586ecfd6e37eaf50372 Approved by: re 2007-03-22T18:16:43Z Jung-uk Kim jkim@FreeBSD.org 2007-03-22T18:16:43Z urn:sha1:2be4e4713aac95323b389243f0f7fa00f6a6112a 2006-12-18T05:54:50Z Takanori Watanabe takawata@FreeBSD.org 2006-12-18T05:54:50Z urn:sha1:eed294f1905154b32b3e04271125588cf0c4bb0e 2006-11-10T20:06:03Z Ed Maste emaste@FreeBSD.org 2006-11-10T20:06:03Z urn:sha1:6d6da6898a18e2769c5a1710bfc8ebef78b85f78 or ia64. The old message implied to me that ACPI can't be compiled in on platforms other than amd64 and ia64. The amd64@ mailing list archive has messages from users with the same confusion. Approved by: scottl 2006-10-30T06:05:10Z Takanori Watanabe takawata@FreeBSD.org 2006-10-30T06:05:10Z urn:sha1:bebb2f3fdd9b3be953a04189315f1a12d175fbc4 2006-10-30T05:38:48Z Takanori Watanabe takawata@FreeBSD.org 2006-10-30T05:38:48Z urn:sha1:e4ab9f19d7da48afbab1d314a43db6acbc9452bb Though it is named after overclocking tool for ASUS motherboards, it is not capable to change clock ratio or CPU core voltage. This driver exports Templature, Power output voltage, Fan RPM under dev.acpi_aiboost.0.*. Descriptions for these values are set to sysctl describe, which can be get by sysctl -d. 2006-05-30T09:38:54Z Ruslan Ermilov ru@FreeBSD.org 2006-05-30T09:38:54Z urn:sha1:ad3cf350d35f835887ff12cba73badcefc64149e use a different mechanism for setting warning flags, and using WARNS here only has null or negative effects. Submitted by: bde (I think it means "submitted") 2006-04-15T12:31:34Z Mitsuru IWASAKI iwasaki@FreeBSD.org 2006-04-15T12:31:34Z urn:sha1:858a52f46425ce4e1b69b7c2462aab2b77b2acf9 Additional detach implementaions (or maybe improvement) for other deivce drivers is required. Reviewed by: njl, imp MFC after: 1 week 2006-03-16T15:18:17Z Ruslan Ermilov ru@FreeBSD.org 2006-03-16T15:18:17Z urn:sha1:d1e9def2546f6545e3e88328226417f983de1cea