@@ -19,6 +19,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/acpi_iort.h>
#include <linux/device.h>
#include <linux/dma-iommu.h>
#include <linux/gfp.h>
@@ -167,13 +168,18 @@ void iommu_put_dma_cookie(struct iommu_domain *domain)
*
* IOMMU drivers can use this to implement their .get_resv_regions callback
* for general non-IOMMU-specific reservations. Currently, this covers host
- * bridge windows for PCI devices.
+ * bridge windows for PCI devices and HW MSI(ARM GICv3 ITS MSI) region
+ * reservations if avialable.
*/
void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
{
struct pci_host_bridge *bridge;
struct resource_entry *window;
+ if (!is_of_node(dev->iommu_fwspec->iommu_fwnode) &&
+ iort_iommu_its_get_resv_regions(dev, list) < 0)
+ return;
+
if (!dev_is_pci(dev))
return;
Modified iommu_dma_get_resv_regions() to include HW MSI (ARM GICv3 ITS MSI) specific reservations if available. Suggested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> --- drivers/iommu/dma-iommu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html