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video: tegra: nvmap: Only allow allocations out of highmem

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Low mem pages are allocated in larger super pages and their caching
attributes can't be controlled on a per page basis.  This patch
forces nvmap to map out of highmem pages which are guaranteed to have
page mappings.

Change-Id: Id3921342ecceb0345d43365d4dd90b82ca8cfd11
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
This commit is contained in:
Rebecca Schultz Zavin
2010-10-12 17:03:02 -07:00
parent 3501c826b4
commit 359cf685af
1 changed files with 1 additions and 1 deletions
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2
drivers/video/tegra/nvmap/nvmap_handle.c
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@@ -38,7 +38,7 @@
#include "nvmap_mru.h"
#define NVMAP_SECURE_HEAPS (NVMAP_HEAP_CARVEOUT_IRAM | NVMAP_HEAP_IOVMM)
#define GFP_NVMAP (GFP_KERNEL | __GFP_HIGHMEM | __GFP_NOWARN)
#define GFP_NVMAP (__GFP_HIGHMEM | __GFP_NOWARN)
/* handles may be arbitrarily large (16+MiB), and any handle allocated from
* the kernel (i.e., not a carveout handle) includes its array of pages. to
* preserve kmalloc space, if the array of pages exceeds PAGELIST_VMALLOC_MIN,