hybrid-graphics-linux team mailing list archive

[Albert Vilella <avilella@xxxxxxxxx>]

ccing to the list

On Sun, Jul 25, 2010 at 7:46 AM, Durango. <durango8113@xxxxxxxxxxxx> wrote:
> ALbert if you would like to pass this on if you see fit .
> Regards
>
>
> I think for the short future just an allowance for parameter injection
> similiar to the debug system on the kernel acpi ,the includes would
> also be similiar to the existing kernel acpi module ,the parameters would
> be similiar ,ie char ,argv and integer only .
>
> eg : This is to power on the gpu and tells the intel DSM to wait ,then sets
> the intel
>         common head to put the values into the root namespace ,with the
> ability
>         to set the addresses and integer variables in the acpi call module
> or integrate
>         i2cset and i2cget  with acpi as the kernel module does we could
> progress
>         with testing ,it should suit both gen 1 & 2 optimus systems,ie
> UL30-80 & Nseries.
>
>
> {
>                 Store ("PS0: Need to power on dGPU", Debug)
>                 \_SB.PCI0.PEGR.GFX0._ON ()
>                 Store (Zero, DGPS)
>                 Sleep (0x01F4)
>                 Store (Zero, HDAE)
>                 \_SB.PCI0.LPCB.EC0.WRAM (0x0458, 0x43)
>                 \_SB.PCI0.LPCB.EC0.TSES ()
>             }
>
>
>
>
> Regards
>
>
>
>
> On 07/25/2010 03:33 AM, Michal Kottman wrote:
>
> On Sat, 2010-07-24 at 16:22 +0100, Albert Vilella wrote:
>
>
> yes, the first implementation of acpi_call has no parameter passing...
> it would be great to have that implemented and allow for more testing.
>
>
> What exactly is needed? I mean, how do you imagine the interface?
>
> Currently, you only need to write the name of the function to call
> into /proc/acpi/call. However, I may modify it to accept numeric
> parameters for method calls, for example like this:
>
> echo '\_SB.PCI0.PEG1.GFX0._DSM 0x1 0x2 0x3 0x4' > /proc/acpi/call
>
> However, I have almost no experience with ACPI (reading the spec now)
> and with the meaning of the methods (_DSM, LCDD, ...) and the parameters
> they may require, so I may need some guidance on what is really needed
> in the /proc/acpi/call interface.
>
>
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