habanalabs: add new mem ioctl op for mapping hw blocks

[sfrench/cifs-2.6.git] / include / uapi / misc / habanalabs.h

diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 866355a531882e8d225bd1e46947c01aa95fa237..b1c09eba8ac28d13192f0f89d42b0903a16e38c6 100644 (file)
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -718,6 +718,8 @@ union hl_wait_cs_args {
 #define HL_MEM_OP_MAP                  2
 /* Opcode to unmap previously mapped host and device memory */
 #define HL_MEM_OP_UNMAP                        3
+/* Opcode to map a hw block */
+#define HL_MEM_OP_MAP_BLOCK            4
 
 /* Memory flags */
 #define HL_MEM_CONTIGUOUS      0x1
@@ -772,6 +774,17 @@ struct hl_mem_in {
                        __u64 mem_size;
                } map_host;
 
+               /* HL_MEM_OP_MAP_BLOCK - map a hw block */
+               struct {
+                       /*
+                        * HW block address to map, a handle will be returned
+                        * to the user and will be used to mmap the relevant
+                        * block. Only addresses from configuration space are
+                        * allowed.
+                        */
+                       __u64 block_addr;
+               } map_block;
+
                /* HL_MEM_OP_UNMAP - unmap host memory */
                struct {
                        /* Virtual address returned from HL_MEM_OP_MAP */
@@ -798,8 +811,9 @@ struct hl_mem_out {
                __u64 device_virt_addr;
 
                /*
-                * Used for HL_MEM_OP_ALLOC. This is the assigned
-                * handle for the allocated memory
+                * Used for HL_MEM_OP_ALLOC and HL_MEM_OP_MAP_BLOCK.
+                * This is the assigned handle for the allocated memory
+                * or mapped block
                 */
                __u64 handle;
        };