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| author | Liam Mark <lmark@codeaurora.org> | 2015-08-26 16:46:19 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:03:49 -0700 |
| commit | a886f65ded53867df6b70f74ebd7fd8e351d1587 (patch) | |
| tree | daa7f3866e4804c91ef007c107ec03d9f243464c | |
| parent | 07ca3d98c661ab40512c8ac8416bb9ff782247a7 (diff) | |
mm/Kconfig: support forcing allocators to return ZONE_DMA memory
Add a new config item, CONFIG_FORCE_ALLOC_FROM_DMA_ZONE, which
can be used to optionally force certain allocators to always
return memory from ZONE_DMA.
This option helps ensure that clients who require ZONE_DMA
memory are always using ZONE_DMA memory.
Change-Id: Id2d36214307789f27aa775c2bef2dab5047c4ff0
Signed-off-by: Liam Mark <lmark@codeaurora.org>
| -rw-r--r-- | mm/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 7b7eae150c4e..abfaf331c140 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -690,3 +690,13 @@ config ZONE_DEVICE config FRAME_VECTOR bool + +config FORCE_ALLOC_FROM_DMA_ZONE + bool "Force certain memory allocators to always return ZONE_DMA memory" + depends on ZONE_DMA + help + Ensure certain memory allocators always return memory from ZONE_DMA. + This option helps ensure that clients who require ZONE_DMA memory are + always using ZONE_DMA memory. + + If unsure, say "n". |