1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <lib.h>
static void iommu_read_resources(struct device *dev)
{
struct resource *res;
/* Get the normal pci resources of this device */
pci_dev_read_resources(dev);
/* IOMMU MMIO registers */
res = new_resource(dev, 0x44);
res->size = 512 * KiB;
res->align = log2(res->size);
res->gran = log2(res->size);
res->limit = 0xffffffff; /* 4G */
res->flags = IORESOURCE_MEM;
}
#if CONFIG(HAVE_ACPI_TABLES)
static const char *iommu_acpi_name(const struct device *dev)
{
return "IOMM";
}
#endif
static struct device_operations iommu_ops = {
.read_resources = iommu_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.ops_pci = &pci_dev_ops_pci,
#if CONFIG(HAVE_ACPI_TABLES)
.acpi_name = iommu_acpi_name,
#endif
};
static const unsigned short pci_device_ids[] = {
PCI_DID_AMD_15H_MODEL_303F_NB_IOMMU,
PCI_DID_AMD_15H_MODEL_707F_NB_IOMMU,
PCI_DID_AMD_17H_MODEL_1020_NB_IOMMU,
PCI_DID_AMD_17H_MODEL_606F_NB_IOMMU,
PCI_DID_AMD_17H_MODEL_A0AF_NB_IOMMU,
0
};
static const struct pci_driver iommu_driver __pci_driver = {
.ops = &iommu_ops,
.vendor = PCI_VID_AMD,
.devices = pci_device_ids,
};
|
