Angel Pons | 4b42983 | 2020-04-02 23:48:50 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 2 | |
| 3 | #include <device/device.h> |
| 4 | #include <device/pci.h> |
| 5 | #include <device/pci_ids.h> |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 6 | #include <lib.h> |
| 7 | |
| 8 | static void iommu_read_resources(struct device *dev) |
| 9 | { |
| 10 | struct resource *res; |
| 11 | |
| 12 | /* Get the normal pci resources of this device */ |
| 13 | pci_dev_read_resources(dev); |
| 14 | |
Felix Held | ddf137f | 2022-02-04 19:27:48 +0100 | [diff] [blame] | 15 | /* IOMMU MMIO registers */ |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 16 | res = new_resource(dev, 0x44); |
| 17 | res->size = 512 * 1024; |
| 18 | res->align = log2(res->size); |
| 19 | res->gran = log2(res->size); |
| 20 | res->limit = 0xffffffff; /* 4G */ |
| 21 | res->flags = IORESOURCE_MEM; |
| 22 | } |
| 23 | |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 24 | static struct device_operations iommu_ops = { |
| 25 | .read_resources = iommu_read_resources, |
Felix Held | a4d033a | 2022-02-04 19:14:50 +0100 | [diff] [blame] | 26 | .set_resources = pci_dev_set_resources, |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 27 | .enable_resources = pci_dev_enable_resources, |
Angel Pons | 1fc0edd | 2020-05-31 00:03:28 +0200 | [diff] [blame] | 28 | .ops_pci = &pci_dev_ops_pci, |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 29 | }; |
| 30 | |
| 31 | static const struct pci_driver iommu_driver __pci_driver = { |
| 32 | .ops = &iommu_ops, |
Felix Singer | 43b7f41 | 2022-03-07 04:34:52 +0100 | [diff] [blame] | 33 | .vendor = PCI_VID_AMD, |
| 34 | .device = PCI_DID_AMD_16H_MODEL_303F_NB_IOMMU, |
Kyösti Mälkki | 03eb8a8 | 2016-06-14 14:49:07 -0500 | [diff] [blame] | 35 | }; |