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In order to align with established standards for establishing DMA
boundaries[1] from ACPI, the UntrustedDevice property has been renamed
to DmaProperty, which follows Microsoft's implementation. After
discussions with Microsoft, they have agreed to make the `UID` property
optional, so it is left out here, and instead it can be applied to:
1) Internal PCI devices
2) PCIe root ports
3) Downstream PCI(e) devices
[1]: https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports
BUG=b:215424986
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Id70e916532e3d3d70305fc61473da28c702fc397
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62435
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
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The Linux kernel has the idea of an "untrusted" PCI device, which may
have limited I/O and memory access permissions, depending on which IOMMU
domains it may be a part of.
https://crrev.com/c/3406512 is a backport to the ChromiumOS kernel which
checks for this property.
BUG=b:215424986
TEST=dump SSDT on google/redrix, verify it contains the expected
UntrustedDevice property
Change-Id: I1a02ca7c5f717097ec97cf6373b9e0b81a13e05d
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61384
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kangheui Won <khwon@chromium.org>
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This change limits the scope of `wifi_generic_fill_ssdt()` and
`wifi_generic_acpi_name()` to generic.c since they are not used
outside of this file anymore. Also, since there is no need to split
SSDT generator into two separate functions,
`wifi_generic_fill_ssdt_generator()` is dropped and `.acpi_fill_ssdt`
directly points to `wifi_generic_fill_ssdt()`.
BUG=b:169802515
BRANCH=zork
Change-Id: I2cbb97f43d2d9f9ed6d3cf8f0a9b13a7f30e922e
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46038
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change drops maxsleep parameter from chip config and instead
hardcodes the deepest sleep state from which the WiFi device can wake
the system up from to SLP_TYP_S3. This is similar to how other device
drivers in coreboot report _PRW property in ACPI. It relieves the
users from adding another register attribute to devicetree since all
mainboards configure the same value. If this changes in the future, it
should be easy to bring the maxsleep config parameter back.
BUG=b:169802515
BRANCH=zork
Change-Id: I42131fced008da0d51f0f777b7f2d99deaf68827
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46033
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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Re-organize the existing generic wifi driver into a generic wifi chip
driver. This allows generic wifi chip information to be added to the
devicetree.
BUG=None
TEST=./util/abuild/abuild
Change-Id: I63f957a008ecf4a6a810c2a135ed62ea81a79fe0
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43768
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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