Tim Wawrzynczak | d40a4c2 | 2021-02-25 13:14:49 -0700 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <acpi/acpigen.h> |
| 4 | #include <acpi/acpigen_pci.h> |
| 5 | #include <assert.h> |
| 6 | #include <device/device.h> |
| 7 | #include <device/pci_def.h> |
| 8 | #include <device/pci_type.h> |
| 9 | #include <types.h> |
| 10 | |
| 11 | void acpigen_write_ADR_pci_devfn(pci_devfn_t devfn) |
| 12 | { |
| 13 | /* |
| 14 | * _ADR for PCI Bus is encoded as follows: |
| 15 | * [63:32] - unused |
| 16 | * [31:16] - device # |
| 17 | * [15:0] - function # |
| 18 | */ |
| 19 | acpigen_write_ADR(PCI_SLOT(devfn) << 16 | PCI_FUNC(devfn)); |
| 20 | } |
| 21 | |
| 22 | void acpigen_write_ADR_pci_device(const struct device *dev) |
| 23 | { |
| 24 | assert(dev->path.type == DEVICE_PATH_PCI); |
| 25 | acpigen_write_ADR_pci_devfn(dev->path.pci.devfn); |
| 26 | } |
Tim Wawrzynczak | 290979f | 2021-02-26 10:54:15 -0700 | [diff] [blame] | 27 | |
| 28 | void acpigen_write_PRT_GSI_entry(unsigned int pci_dev, unsigned int acpi_pin, unsigned int gsi) |
| 29 | { |
| 30 | acpigen_write_package(4); |
| 31 | acpigen_write_dword((pci_dev << 16) | 0xffff); |
| 32 | acpigen_write_byte(acpi_pin); |
| 33 | |
| 34 | /* Source */ |
| 35 | acpigen_write_byte(0); |
| 36 | |
| 37 | /* Source Index */ |
| 38 | acpigen_write_dword(gsi); |
| 39 | |
| 40 | acpigen_pop_len(); /* Package */ |
| 41 | } |
| 42 | |
| 43 | void acpigen_write_PRT_source_entry(unsigned int pci_dev, unsigned int acpi_pin, |
| 44 | const char *source_path, unsigned int index) |
| 45 | { |
| 46 | acpigen_write_package(4); |
| 47 | acpigen_write_dword((pci_dev << 16) | 0xffff); |
| 48 | acpigen_write_byte(acpi_pin); |
| 49 | |
| 50 | /* Source */ |
| 51 | acpigen_emit_namestring(source_path); |
| 52 | |
| 53 | /* Source Index */ |
| 54 | acpigen_write_dword(index); |
| 55 | |
| 56 | acpigen_pop_len(); /* Package */ |
| 57 | } |