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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-12-16 12:17:26 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-16 21:31:38 +0100 |
| commit | 8c5df16bec8a60bb8589fc232b9e26cac0ed4b2c (patch) | |
| tree | b85d46d552ba86da332ebad328761998171332c5 /include/linux/swiotlb.h | |
| parent | a79b7a2a758c39315344f0d86b5adb21d90d786e (diff) | |
| download | lwn-8c5df16bec8a60bb8589fc232b9e26cac0ed4b2c.tar.gz lwn-8c5df16bec8a60bb8589fc232b9e26cac0ed4b2c.zip | |
swiotlb: allow architectures to override swiotlb pool allocation
Impact: generalize swiotlb allocation code
Architectures may need to allocate memory specially for use with
the swiotlb. Create the weak function swiotlb_alloc_boot() and
swiotlb_alloc() defaulting to the current behaviour.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/swiotlb.h')
| -rw-r--r-- | include/linux/swiotlb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index b18ec5533e8c..b8c5fc766a56 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -10,6 +10,9 @@ struct scatterlist; extern void swiotlb_init(void); +extern void *swiotlb_alloc_boot(size_t bytes, unsigned long nslabs); +extern void *swiotlb_alloc(unsigned order, unsigned long nslabs); + extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags); |