diff options
| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2021-02-26 10:54:15 -0700 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2021-03-24 16:08:57 +0000 |
| commit | 290979f96059e14f0656c5740d552be852e25b4e (patch) | |
| tree | 05f6fefd0b27ac9368a98769db329078560561d5 | |
| parent | 93a4e0135c41c1d90498a221b1e20e1b211376c1 (diff) | |
acpi: Add acpigen_write_PRT* helpers for generating _PRT entries
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ia666bd0e5db40d7873532dc22bc89be9854b903a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51107
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
| -rw-r--r-- | src/acpi/acpigen_pci.c | 31 | ||||
| -rw-r--r-- | src/include/acpi/acpigen_pci.h | 4 |
2 files changed, 35 insertions, 0 deletions
diff --git a/src/acpi/acpigen_pci.c b/src/acpi/acpigen_pci.c index 66f8dcd1bd..3edf0d0342 100644 --- a/src/acpi/acpigen_pci.c +++ b/src/acpi/acpigen_pci.c @@ -24,3 +24,34 @@ void acpigen_write_ADR_pci_device(const struct device *dev) assert(dev->path.type == DEVICE_PATH_PCI); acpigen_write_ADR_pci_devfn(dev->path.pci.devfn); } + +void acpigen_write_PRT_GSI_entry(unsigned int pci_dev, unsigned int acpi_pin, unsigned int gsi) +{ + acpigen_write_package(4); + acpigen_write_dword((pci_dev << 16) | 0xffff); + acpigen_write_byte(acpi_pin); + + /* Source */ + acpigen_write_byte(0); + + /* Source Index */ + acpigen_write_dword(gsi); + + acpigen_pop_len(); /* Package */ +} + +void acpigen_write_PRT_source_entry(unsigned int pci_dev, unsigned int acpi_pin, + const char *source_path, unsigned int index) +{ + acpigen_write_package(4); + acpigen_write_dword((pci_dev << 16) | 0xffff); + acpigen_write_byte(acpi_pin); + + /* Source */ + acpigen_emit_namestring(source_path); + + /* Source Index */ + acpigen_write_dword(index); + + acpigen_pop_len(); /* Package */ +} diff --git a/src/include/acpi/acpigen_pci.h b/src/include/acpi/acpigen_pci.h index f05057530c..8a96eb3d25 100644 --- a/src/include/acpi/acpigen_pci.h +++ b/src/include/acpi/acpigen_pci.h @@ -10,4 +10,8 @@ void acpigen_write_ADR_pci_devfn(pci_devfn_t devfn); void acpigen_write_ADR_pci_device(const struct device *dev); +void acpigen_write_PRT_GSI_entry(unsigned int pci_dev, unsigned int acpi_pin, unsigned int gsi); +void acpigen_write_PRT_source_entry(unsigned int pci_dev, unsigned int acpi_pin, + const char *source_path, unsigned int index); + #endif /* ACPIGEN_PCI_H */ |