int
msi_map(int irq, uint64_t *addr, uint32_t *data)
{
struct msi_intsrc *msi;
mtx_lock(&msi_lock);
msi = (struct msi_intsrc *)intr_lookup_source(irq);
if (msi == NULL) {
mtx_unlock(&msi_lock);
return (ENOENT);
}
/* Make sure this message is allocated to a device. */
if (msi->msi_dev == NULL) {
mtx_unlock(&msi_lock);
return (ENXIO);
}
/*
* If this message isn't an MSI-X message, make sure it's part
* of a group, and switch to the first message in the
* group.
*/
if (!msi->msi_msix) {
if (msi->msi_first == NULL) {
mtx_unlock(&msi_lock);
return (ENXIO);
}
msi = msi->msi_first;
}
*addr = INTEL_ADDR(msi);
*data = INTEL_DATA(msi);
mtx_unlock(&msi_lock);
return (0);
}
int
msi_map(int irq, uint64_t *addr, uint32_t *data)
{
struct msi_intsrc *msi;
int error;
#ifdef ACPI_DMAR
struct msi_intsrc *msi1;
int i, k;
#endif
mtx_lock(&msi_lock);
msi = (struct msi_intsrc *)intr_lookup_source(irq);
if (msi == NULL) {
mtx_unlock(&msi_lock);
return (ENOENT);
}
/* Make sure this message is allocated to a device. */
if (msi->msi_dev == NULL) {
mtx_unlock(&msi_lock);
return (ENXIO);
}
/*
* If this message isn't an MSI-X message, make sure it's part
* of a group, and switch to the first message in the
* group.
*/
if (!msi->msi_msix) {
if (msi->msi_first == NULL) {
mtx_unlock(&msi_lock);
return (ENXIO);
}
msi = msi->msi_first;
}
#ifdef ACPI_DMAR
if (!msi->msi_msix) {
for (k = msi->msi_count - 1, i = FIRST_MSI_INT; k > 0 &&
i < FIRST_MSI_INT + NUM_MSI_INTS; i++) {
if (i == msi->msi_irq)
continue;
msi1 = (struct msi_intsrc *)intr_lookup_source(i);
if (!msi1->msi_msix && msi1->msi_first == msi) {
mtx_unlock(&msi_lock);
iommu_map_msi_intr(msi1->msi_dev,
msi1->msi_cpu, msi1->msi_vector,
msi1->msi_remap_cookie, NULL, NULL);
k--;
mtx_lock(&msi_lock);
}
}
}
mtx_unlock(&msi_lock);
error = iommu_map_msi_intr(msi->msi_dev, msi->msi_cpu,
msi->msi_vector, msi->msi_remap_cookie, addr, data);
#else
mtx_unlock(&msi_lock);
error = EOPNOTSUPP;
#endif
if (error == EOPNOTSUPP) {
*addr = INTEL_ADDR(msi);
*data = INTEL_DATA(msi);
error = 0;
}
return (error);
}