x86, AMD IOMMU: use status bit instead of memory write-back for completion wait

[linux-2.6-omap-h63xx.git] / include / asm-x86 / amd_iommu_types.h

diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h
index 22aa58ca1991c3003565f8fbc0313f3cf37b9d92..32543229db769d5b85742394c3459301fc348599 100644 (file)
--- a/include/asm-x86/amd_iommu_types.h
+++ b/include/asm-x86/amd_iommu_types.h
@@ -69,6 +69,9 @@
 #define MMIO_EVT_TAIL_OFFSET   0x2018
 #define MMIO_STATUS_OFFSET     0x2020
 
+/* MMIO status bits */
+#define MMIO_STATUS_COM_WAIT_INT_MASK  0x04
+
 /* feature control bits */
 #define CONTROL_IOMMU_EN        0x00ULL
 #define CONTROL_HT_TUN_EN       0x01ULL
@@ -89,6 +92,7 @@
 #define CMD_INV_IOMMU_PAGES     0x03
 
 #define CMD_COMPL_WAIT_STORE_MASK      0x01
+#define CMD_COMPL_WAIT_INT_MASK                0x02
 #define CMD_INV_IOMMU_PAGES_SIZE_MASK  0x01
 #define CMD_INV_IOMMU_PAGES_PDE_MASK   0x02