X86: uv: implement a gru_read_gpa kernel function

[linux-beck.git] / drivers / misc / sgi-gru / grukservices.h

diff --git a/drivers/misc/sgi-gru/grukservices.h b/drivers/misc/sgi-gru/grukservices.h
index d60d34bca44d9ccc66a44c481b4043e041a5e832..02aa94d8484ad8e7ec01aee963d563e216f30fa4 100644 (file)
--- a/drivers/misc/sgi-gru/grukservices.h
+++ b/drivers/misc/sgi-gru/grukservices.h
@@ -130,6 +130,20 @@ extern void gru_free_message(struct gru_message_queue_desc *mqd,
 extern void *gru_get_next_message(struct gru_message_queue_desc *mqd);
 
 
+/*
+ * Read a GRU global GPA. Source can be located in a remote partition.
+ *
+ *    Input:
+ *     value           memory address where MMR value is returned
+ *     gpa             source numalink physical address of GPA
+ *
+ *    Output:
+ *     0               OK
+ *     >0              error
+ */
+int gru_read_gpa(unsigned long *value, unsigned long gpa);
+
+
 /*
  * Copy data using the GRU. Source or destination can be located in a remote
  * partition.