diff options
| author | Kapil Porwal <kapilporwal@google.com> | 2022-11-28 11:03:38 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-11-29 19:49:36 +0000 |
| commit | d7eacd75aeaf648c9fe844f5928b7091f5e23d15 (patch) | |
| tree | 32d1c17ef90fa99661818680916da9c67a542e02 /src | |
| parent | 0b20a174db2cdb11ca9e6f193d645d5dd0bd5c3b (diff) | |
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/common/block/pcie/rtd3/chip.h | 4 | ||||
| -rw-r--r-- | src/soc/intel/common/block/pcie/rtd3/rtd3.c | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/pcie/rtd3/chip.h b/src/soc/intel/common/block/pcie/rtd3/chip.h index 8b62406558..ff22adcf49 100644 --- a/src/soc/intel/common/block/pcie/rtd3/chip.h +++ b/src/soc/intel/common/block/pcie/rtd3/chip.h @@ -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. diff --git a/src/soc/intel/common/block/pcie/rtd3/rtd3.c b/src/soc/intel/common/block/pcie/rtd3/rtd3.c index 85ee24fbb5..2c60eff069 100644 --- a/src/soc/intel/common/block/pcie/rtd3/rtd3.c +++ b/src/soc/intel/common/block/pcie/rtd3/rtd3.c @@ -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); /* |