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[v1.05] Remove filter_pci_devices

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Dr-Noob
2024-08-18 14:55:21 +01:00
parent 38f02dc22a
commit 0d7806d9f4
1 changed files with 1 additions and 46 deletions
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47
src/common/pci.c
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@@ -14,14 +14,6 @@
#define PCI_PATH "/sys/bus/pci/devices/"
#define MAX_LENGTH_PCI_DIR_NAME 1024
/*
* doc: https://wiki.osdev.org/PCI#Class_Codes
* https://pci-ids.ucw.cz/read/PC
*/
#define PCI_VENDOR_ID_AMD 0x1002
#define CLASS_VGA_CONTROLLER 0x0300
#define CLASS_3D_CONTROLLER 0x0302
// Return a list of PCI devices containing only
// the sysfs path
struct pci_devices * get_pci_paths(void) {
@@ -126,43 +118,6 @@ void populate_pci_devices(struct pci_devices * pci) {
}
}
// Right now, we are interested in PCI devices which
// vendor is NVIDIA (to be extended in the future).
// Should we also restrict to VGA controllers only?
bool pci_device_is_useful(struct pci_device* dev) {
return dev->vendor_id == PCI_VENDOR_NVIDIA;
}
// Filter the input list in order to get only those PCI devices which
// we are interested in (decided by pci_device_is_useful)
// and return the filtered result.
struct pci_devices * filter_pci_devices(struct pci_devices * pci) {
int * devices_to_get = emalloc(sizeof(int) * pci->num_devices);
int dev_ptr = 0;
for (int i=0; i < pci->num_devices; i++) {
if (pci_device_is_useful(pci->devices[i])) {
devices_to_get[dev_ptr] = i;
dev_ptr++;
}
}
struct pci_devices * pci_filtered = emalloc(sizeof(struct pci_devices));
pci_filtered->num_devices = dev_ptr;
if (pci_filtered->num_devices == 0) {
pci_filtered->devices = NULL;
}
else {
pci_filtered->devices = emalloc(sizeof(struct pci_device) * pci_filtered->num_devices);
for (int i=0; i < pci_filtered->num_devices; i++)
pci_filtered->devices[i] = pci->devices[devices_to_get[i]];
}
return pci_filtered;
}
// Return a list of PCI devices that could be used to infer the SoC.
// The criteria to determine which devices are suitable for this task
// is decided in filter_pci_devices.
@@ -174,5 +129,5 @@ struct pci_devices * get_pci_devices(void) {
populate_pci_devices(pci);
return filter_pci_devices(pci);
return pci;
}