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path: root/drivers/gpu/drm/imagination/pvr_gem.h
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Diffstat (limited to 'drivers/gpu/drm/imagination/pvr_gem.h')
-rw-r--r--drivers/gpu/drm/imagination/pvr_gem.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_gem.h b/drivers/gpu/drm/imagination/pvr_gem.h
index e0e5ea509a2e..c99f30cc6208 100644
--- a/drivers/gpu/drm/imagination/pvr_gem.h
+++ b/drivers/gpu/drm/imagination/pvr_gem.h
@@ -44,8 +44,10 @@ struct pvr_file;
* Bits not defined anywhere are "undefined".
*
* CPU mapping options
- * :PVR_BO_CPU_CACHED: By default, all GEM objects are mapped write-combined on the CPU. Set this
- * flag to override this behaviour and map the object cached.
+ * :PVR_BO_CPU_CACHED: By default, all GEM objects are mapped write-combined on the CPU. Set
+ * this flag to override this behaviour and map the object cached. If the dma_coherent
+ * property is present in devicetree, all allocations will be mapped as if this flag was set.
+ * This does not require any additional consideration at allocation time.
*
* Firmware options
* :PVR_BO_FW_NO_CLEAR_ON_RESET: By default, all FW objects are cleared and reinitialised on hard