Messages in this thread |  | | Date | Fri, 28 Feb 2003 12:22:36 -0600 | From | Corey Minyard <> | Subject | Re: ACPI request/release generic address |
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It an acpi_generic_address structure defined in include/acpi/actbl2.h. It's an address that can be in memory, I/O, or PCI configuration space.
The definition is at http://www.microsoft.com/hwdev/tech/onnow/LF-ACPI.asp
- -Corey
Jeff Garzik wrote:
|On Fri, Feb 28, 2003 at 10:26:13AM -0600, Corey Minyard wrote: | |>-----BEGIN PGP SIGNED MESSAGE----- |>Hash: SHA1 |> |>Is there a way in the ACPI code to do a request/release of I/O or memory |>with an acpi_generic_address? Does it even make sense to do this? |>There are generic I/O routines for using a generic address, and I'm |>working with an ACPI table that has a generic address, so it would seem |>to make sense to have memory reservation routines through this, too. | | |Can you define a generic address? | |IIRC, ACPI needs some work in this area. | |If the "generic address" is host RAM, that's easy. |If the generic address is PIO address, that's mostly easy. |If the generic address is MMIO address, that takes a bit of care with |mapping, and I'm not sure ACPI gets it right in these cases. | | Jeff | | |
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