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soc/intel/cmn/block/pcie/rtd3: Add support for ACPI DmaProperty 

BUG=b:259716145
TEST=Verified SSDT on google/rex.

Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Change-Id: I921b06e8d35ddac0bc8175b13a33c84515b282a4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70028
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kapil Porwal 2022-11-28 11:03:38 +05:30 committed by Subrata Banik
parent 0b20a174db
commit d7eacd75ae
2 changed files with 9 additions and 0 deletions
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4
src/soc/intel/common/block/pcie/rtd3/chip.h
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@ -40,6 +40,10 @@ struct soc_intel_common_block_pcie_rtd3_config {
*/
int srcclk_pin;
/* When set to true, this will add a _DSD which contains a single
property, `DmaProperty`, set to 1, under the ACPI Device. */
bool add_acpi_dma_property;
/*
* Add device property indicating the device provides an external PCI port
* for the OS to apply security restrictions.

5
src/soc/intel/common/block/pcie/rtd3/rtd3.c
View File

@ -484,6 +484,11 @@ static void pcie_rtd3_acpi_fill_ssdt(const struct device *dev)
acpi_dp_add_integer(pkg, PCIE_EXTERNAL_PORT_PROPERTY, 1);
acpi_dp_add_package(dsd, pkg);
}
/* Indicate to the OS if the device has DMA property. */
if (config->add_acpi_dma_property)
acpi_device_add_dma_property(dsd);
acpi_dp_write(dsd);
/*