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authorOded Gabbay <ogabbay@kernel.org>2021-02-05 17:04:34 +0300
committerOded Gabbay <ogabbay@kernel.org>2021-02-08 19:20:08 +0300
commit6df50d274363aa189a31435024339b781a6e32a9 (patch)
treeb48d8cac5907477e3aafab49d05d4dd77d0f9938 /include/uapi/misc
parent5b6b780660ad9e3ce60a1f04cfa1f4d5013e267a (diff)
downloadlinux-6df50d274363aa189a31435024339b781a6e32a9.tar.xz
habanalabs: return block size + block ID
When user gives us a block address to get its ID to mmap it, he also needs to get from us the block size to pass to the driver in the mmap function. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'include/uapi/misc')
-rw-r--r--include/uapi/misc/habanalabs.h27
1 files changed, 21 insertions, 6 deletions
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 64ae83b5f8e5..5a86b521a450 100644
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -782,10 +782,10 @@ struct hl_mem_in {
/* 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.
+ * HW block address to map, a handle and size 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;
@@ -816,11 +816,26 @@ struct hl_mem_out {
__u64 device_virt_addr;
/*
- * Used for HL_MEM_OP_ALLOC and HL_MEM_OP_MAP_BLOCK.
+ * Used in HL_MEM_OP_ALLOC
* This is the assigned handle for the allocated memory
- * or mapped block
*/
__u64 handle;
+
+ struct {
+ /*
+ * Used in HL_MEM_OP_MAP_BLOCK.
+ * This is the assigned handle for the mapped block
+ */
+ __u64 block_handle;
+
+ /*
+ * Used in HL_MEM_OP_MAP_BLOCK
+ * This is the size of the mapped block
+ */
+ __u32 block_size;
+
+ __u32 pad;
+ };
};
};