summaryrefslogtreecommitdiff
path: root/drivers/pci/intel-iommu.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pci/intel-iommu.h')
-rw-r--r--drivers/pci/intel-iommu.h24
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/pci/intel-iommu.h b/drivers/pci/intel-iommu.h
index 2983ce895353..a81a74e2bd9e 100644
--- a/drivers/pci/intel-iommu.h
+++ b/drivers/pci/intel-iommu.h
@@ -56,6 +56,7 @@
#define DMAR_IQT_REG 0x88 /* Invalidation queue tail register */
#define DMAR_IQA_REG 0x90 /* Invalidation queue addr register */
#define DMAR_ICS_REG 0x98 /* Invalidation complete status register */
+#define DMAR_IRTA_REG 0xb8 /* Interrupt remapping table addr register */
#define OFFSET_STRIDE (9)
/*
@@ -157,16 +158,20 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
#define DMA_GCMD_SRTP (((u32)1) << 30)
#define DMA_GCMD_SFL (((u32)1) << 29)
#define DMA_GCMD_EAFL (((u32)1) << 28)
-#define DMA_GCMD_QIE (((u32)1) << 26)
#define DMA_GCMD_WBF (((u32)1) << 27)
+#define DMA_GCMD_QIE (((u32)1) << 26)
+#define DMA_GCMD_SIRTP (((u32)1) << 24)
+#define DMA_GCMD_IRE (((u32) 1) << 25)
/* GSTS_REG */
#define DMA_GSTS_TES (((u32)1) << 31)
#define DMA_GSTS_RTPS (((u32)1) << 30)
#define DMA_GSTS_FLS (((u32)1) << 29)
#define DMA_GSTS_AFLS (((u32)1) << 28)
-#define DMA_GSTS_QIES (((u32)1) << 26)
#define DMA_GSTS_WBFS (((u32)1) << 27)
+#define DMA_GSTS_QIES (((u32)1) << 26)
+#define DMA_GSTS_IRTPS (((u32)1) << 24)
+#define DMA_GSTS_IRES (((u32)1) << 25)
/* CCMD_REG */
#define DMA_CCMD_ICC (((u64)1) << 63)
@@ -245,6 +250,16 @@ struct q_inval {
int free_cnt;
};
+#ifdef CONFIG_INTR_REMAP
+/* 1MB - maximum possible interrupt remapping table size */
+#define INTR_REMAP_PAGE_ORDER 8
+#define INTR_REMAP_TABLE_REG_SIZE 0xf
+
+struct ir_table {
+ struct irte *base;
+};
+#endif
+
struct intel_iommu {
void __iomem *reg; /* Pointer to hardware regs, virtual addr */
u64 cap;
@@ -266,6 +281,9 @@ struct intel_iommu {
struct sys_device sysdev;
#endif
struct q_inval *qi; /* Queued invalidation info */
+#ifdef CONFIG_INTR_REMAP
+ struct ir_table *ir_table; /* Interrupt remapping info */
+#endif
};
static inline void __iommu_flush_cache(
@@ -279,5 +297,7 @@ extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev);
extern int alloc_iommu(struct dmar_drhd_unit *drhd);
extern void free_iommu(struct intel_iommu *iommu);
+extern int dmar_enable_qi(struct intel_iommu *iommu);
+extern void qi_global_iec(struct intel_iommu *iommu);
#endif