mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 09:55:55 +00:00
edf5ca5dbe
PCIDeviceClass and PCIDevice are defined in pci.h. Many users of the header don't actually need them. Similar structs live in their own headers: PCIBusClass and PCIBus in pci_bus.h, PCIBridge in pci_bridge.h, PCIHostBridgeClass and PCIHostState in pci_host.h, PCIExpressHost in pcie_host.h, and PCIERootPortClass, PCIEPort, and PCIESlot in pcie_port.h. Move PCIDeviceClass and PCIDeviceClass to new pci_device.h, along with the code that needs them. Adjust include directives. This also enables the next commit. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20221222100330.380143-6-armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
#include "qemu/osdep.h"
|
|
#include "hw/pci/slotid_cap.h"
|
|
#include "hw/pci/pci_device.h"
|
|
#include "qemu/error-report.h"
|
|
#include "qapi/error.h"
|
|
|
|
#define SLOTID_CAP_LENGTH 4
|
|
#define SLOTID_NSLOTS_SHIFT ctz32(PCI_SID_ESR_NSLOTS)
|
|
|
|
int slotid_cap_init(PCIDevice *d, int nslots,
|
|
uint8_t chassis,
|
|
unsigned offset,
|
|
Error **errp)
|
|
{
|
|
int cap;
|
|
|
|
if (!chassis) {
|
|
error_setg(errp, "Bridge chassis not specified. Each bridge is required"
|
|
" to be assigned a unique chassis id > 0.");
|
|
return -EINVAL;
|
|
}
|
|
if (nslots < 0 || nslots > (PCI_SID_ESR_NSLOTS >> SLOTID_NSLOTS_SHIFT)) {
|
|
/* TODO: error report? */
|
|
return -EINVAL;
|
|
}
|
|
|
|
cap = pci_add_capability(d, PCI_CAP_ID_SLOTID, offset,
|
|
SLOTID_CAP_LENGTH, errp);
|
|
if (cap < 0) {
|
|
return cap;
|
|
}
|
|
/* We make each chassis unique, this way each bridge is First in Chassis */
|
|
d->config[cap + PCI_SID_ESR] = PCI_SID_ESR_FIC |
|
|
(nslots << SLOTID_NSLOTS_SHIFT);
|
|
d->cmask[cap + PCI_SID_ESR] = 0xff;
|
|
d->config[cap + PCI_SID_CHASSIS_NR] = chassis;
|
|
/* Note: Chassis number register is non-volatile,
|
|
so we don't reset it. */
|
|
/* TODO: store in eeprom? */
|
|
d->wmask[cap + PCI_SID_CHASSIS_NR] = 0xff;
|
|
|
|
d->cap_present |= QEMU_PCI_CAP_SLOTID;
|
|
return 0;
|
|
}
|
|
|
|
void slotid_cap_cleanup(PCIDevice *d)
|
|
{
|
|
/* TODO: cleanup config space? */
|
|
d->cap_present &= ~QEMU_PCI_CAP_SLOTID;
|
|
}
|