Re: ACPI woes again..
On Fri, Jul 05, 2002 at 06:46:05PM +0900, Takanori Watanabe wrote: > Would you review this description? How about: --- acpi.4.orig Thu Jun 13 02:50:06 2002 +++ acpi.4 Fri Jul 5 21:16:59 2002 @@ -258,10 +258,35 @@ bus/children scan of the namespace. The ACPI CA code will still know about the avoided region. +.Sh OVERRIDING YOUR BIOS BYTECODE +ACPI interprets bytecode named AML, ACPI Machine Language, provided by BIOS +vendor as memory image at boot time. Sometimes, the AML code contains +incorrect bytecode that does not wreak havoc with the Microsoft implementations +of ACPI. Such bugs can often times prevent FreeBSD from booting. In case of +such issues, we provide a way to override buggy AML with your own AML +code. +.Pp +In order to load your AML code, +you must edit +.Pa /boot/loader.conf +and +include the follwing lines. +.Bd -literal -offset indent +acpi_dsdt_load="YES" +acpi_dsdt_name="/boot/acpi_dsdt.aml" #You may change the name. +.Ed +.Pp +In order to prepare your AML code, you will require +.Xr acpidump 8 , +.Xr iasl 1 +in devel/acpicatools port, and some ACPI knowledge. + .Sh COMPATIBILITY ACPI is only found/supported on Intel platforms (i386/IA32 and IA64). .Sh SEE ALSO .Xr config 8 , +.Xr loader.conf 5 , +.Xr acpidump 8 , .Xr acpi 9 .Sh AUTHORS .An -nosplit - alex To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: ACPI woes again..
On Fri, Jul 05, 2002 at 05:08:24AM -0700, Terry Lambert wrote: > Takanori Watanabe wrote: > > +.Sh OVERRIDING YOUR BIOS BYTECODE > > +ACPI interprets bytecode named AML, ACPI Machine Language, provided by BIOS > > +vendor as memory image at boot time. Sometimes, the AML code contains > > +problem that is not appeared in Microsoft implement. So we provide a way > > +to override it with your own AML code. > > +.Pp > > How does Windows deal with hardware that has this problem? > Do they use a "rogues" list, and replace the AML, too (only > automatically)? Actually, their ACPI implementation suck, so that most of buggy AML work. For example, they don't check correctly if a they have the right to read/write to some Operational Region. If an AML declare incorrecly such regions, under FBSD (or other free OS with an ACPI-CA implementation), it can not work since the bound checking work as expected. But as a consequence, those regions can't be acceded. As an example, the status of the AC can not be reported correctly under a Satellite 3000-601 due to this kind of bug. -- Ducrot Bruno http://www.poupinou.orgPage profaissionelle http://toto.tu-me-saoules.com Haume page To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: ACPI woes again..
In message <[EMAIL PROTECTED]>, Alex Zepeda wrote: >On Fri, Jul 05, 2002 at 04:01:08PM +0900, Takanori Watanabe wrote: > >> We already have a way to use your own bytecode without recompiling. >> Simply put your AML file to /boot/acpi_dsdt.aml and add 'acpi_dsdt_load="YES >" >> to your /boot/loader.conf (Other necessary setting exist in /boot/default/lo >ader.conf) > >Cool! I can boot now!! > >When will this make it into the man page? Would you review this description? --- acpi.4 Fri Jul 5 17:41:29 2002 +++ acpi.4.new Fri Jul 5 18:37:27 2002 @@ -258,10 +258,33 @@ bus/children scan of the namespace. The ACPI CA code will still know about the avoided region. +.Sh OVERRIDING YOUR BIOS BYTECODE +ACPI interprets bytecode named AML, ACPI Machine Language, provided by BIOS +vendor as memory image at boot time. Sometimes, the AML code contains +problem that is not appeared in Microsoft implement. So we provide a way +to override it with your own AML code. +.Pp +In order to load your AML code, +you must edit +.Pa /boot/loader.conf +and +include the follwing lines. +.Bd -literal -offset indent +acpi_dsdt_load="YES" +acpi_dsdt_name="/boot/acpi_dsdt.aml" #You may change the name. +.Ed +.Pp +In order to prepare your AML code, you will require +.Xr acpidump 8 , +.Xr iasl 1 +in devel/acpicatools port, and some ACPI knowledge. + .Sh COMPATIBILITY ACPI is only found/supported on Intel platforms (i386/IA32 and IA64). .Sh SEE ALSO .Xr config 8 , +.Xr loader.conf 5 , +.Xr acpidump 8 , .Xr acpi 9 .Sh AUTHORS .An -nosplit To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
