docs: ntb.txt: use Sphinx notation for the two ascii figures
In order to make it to build with Sphinx, we need to fix the
notation for two ascii artwork.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/ntb.txt b/Documentation/ntb.txt
index a043854..344a075 100644
--- a/Documentation/ntb.txt
+++ b/Documentation/ntb.txt
@@ -41,9 +41,10 @@
there are two types of memory window interfaces supported by the NTB API:
inbound translation configured on the local ntb port and outbound translation
configured by the peer, on the peer ntb port. The first type is
-depicted on the next figure
+depicted on the next figure::
-Inbound translation:
+ Inbound translation:
+
Memory: Local NTB Port: Peer NTB Port: Peer MMIO:
____________
| dma-mapped |-ntb_mw_set_trans(addr) |
@@ -58,9 +59,10 @@
memory region.
The second type of interface, that implies the shared windows being
-initialized by a peer device, is depicted on the figure:
+initialized by a peer device, is depicted on the figure::
-Outbound translation:
+ Outbound translation:
+
Memory: Local NTB Port: Peer NTB Port: Peer MMIO:
____________ ______________
| dma-mapped | | | MW base addr |<== memory-mapped IO