[PATCH 5/5] drm: Add TODO item for requesting memory regions

Thomas Zimmermann tzimmermann at suse.de
Mon Jan 24 12:36:59 UTC 2022


Add a TODO item about requesting  memory regions for each driver. The
current DRM drivers don't do this consistently.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 Documentation/gpu/todo.rst | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index da138dd39883..1b2372ef4131 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -467,6 +467,21 @@ Contact: Thomas Zimmermann <tzimmermann at suse.de>
 
 Level: Intermediate
 
+Request memory regions in all drivers
+-------------------------------------
+
+Go through all drivers and add code to request the memory regions that the
+driver uses. This requires adding calls to request_mem_region(),
+pci_request_region() or similar functions. Use helpers for managed cleanup
+where possible.
+
+Drivers are pretty bad at doing this and there used to be conflicts among
+DRM and fbdev drivers. Still, it's the correct thing to do.
+
+Contact: Thomas Zimmermann <tzimmermann at suse.de>
+
+Level: Starter
+
 
 Core refactorings
 =================
-- 
2.34.1



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