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-rw-r--r--include/linux/intel-svm.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/intel-svm.h b/include/linux/intel-svm.h
index 10fa80eef13a..57cceecbe37f 100644
--- a/include/linux/intel-svm.h
+++ b/include/linux/intel-svm.h
@@ -14,6 +14,11 @@
#define SVM_REQ_EXEC (1<<1)
#define SVM_REQ_PRIV (1<<0)
+/* Page Request Queue depth */
+#define PRQ_ORDER 2
+#define PRQ_RING_MASK ((0x1000 << PRQ_ORDER) - 0x20)
+#define PRQ_DEPTH ((0x1000 << PRQ_ORDER) >> 5)
+
/*
* The SVM_FLAG_SUPERVISOR_MODE flag requests a PASID which can be used only
* for access to kernel addresses. No IOTLB flushes are automatically done