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xhci: fix & cleanup msi. 

Drop custom write_config function which isn't needed any more.
Make the msi property a bit property so it accepts 'on' & 'off'.
Enable MSI by default.

TODO: add compat property to disable on old machine types.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-08-30 10:57:12 +02:00
parent 79b40459ba
commit c5e9b02dee
1 changed files with 9 additions and 18 deletions
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27
hw/usb/hcd-xhci.c
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@ -386,7 +386,7 @@ struct XHCIState {
/* properties */
uint32_t numports_2;
uint32_t numports_3;
uint32_t msi;
uint32_t flags;
/* Operational Registers */
uint32_t usbcmd;
@ -435,6 +435,10 @@ typedef struct XHCIEvRingSeg {
uint32_t rsvd;
} XHCIEvRingSeg;
enum xhci_flags {
XHCI_FLAG_USE_MSI = 1,
};
static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
unsigned int epid);
static void xhci_event(XHCIState *xhci, XHCIEvent *event);
@ -617,7 +621,7 @@ static void xhci_irq_update(XHCIState *xhci)
level = 1;
}
if (xhci->msi && msi_enabled(&xhci->pci_dev)) {
if (msi_enabled(&xhci->pci_dev)) {
if (level) {
trace_usb_xhci_irq_msi(0);
msi_notify(&xhci->pci_dev, 0);
@ -2857,32 +2861,20 @@ static int usb_xhci_initfn(struct PCIDevice *dev)
ret = pcie_cap_init(&xhci->pci_dev, 0xa0, PCI_EXP_TYPE_ENDPOINT, 0);
assert(ret >= 0);
if (xhci->msi) {
ret = msi_init(&xhci->pci_dev, 0x70, 1, true, false);
assert(ret >= 0);
if (xhci->flags & (1 << XHCI_FLAG_USE_MSI)) {
msi_init(&xhci->pci_dev, 0x70, MAXINTRS, true, false);
}
return 0;
}
static void xhci_write_config(PCIDevice *dev, uint32_t addr, uint32_t val,
int len)
{
XHCIState *xhci = DO_UPCAST(XHCIState, pci_dev, dev);
pci_default_write_config(dev, addr, val, len);
if (xhci->msi) {
msi_write_config(dev, addr, val, len);
}
}
static const VMStateDescription vmstate_xhci = {
.name = "xhci",
.unmigratable = 1,
};
static Property xhci_properties[] = {
DEFINE_PROP_UINT32("msi", XHCIState, msi, 0),
DEFINE_PROP_BIT("msi", XHCIState, flags, XHCI_FLAG_USE_MSI, true),
DEFINE_PROP_UINT32("p2", XHCIState, numports_2, 4),
DEFINE_PROP_UINT32("p3", XHCIState, numports_3, 4),
DEFINE_PROP_END_OF_LIST(),
@ -2902,7 +2894,6 @@ static void xhci_class_init(ObjectClass *klass, void *data)
k->class_id = PCI_CLASS_SERIAL_USB;
k->revision = 0x03;
k->is_express = 1;
k->config_write = xhci_write_config;
}
static TypeInfo xhci_info = {