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authorDave Airlie <airlied@redhat.com>2011-09-20 09:35:22 +0100
committerDave Airlie <airlied@redhat.com>2011-09-20 09:35:22 +0100
commitb2d108ba333cdff80d9e7645d7697cbb6bb0fc29 (patch)
treef62b2464a35e4676b5e3e9ef340758a17d0b80f8 /arch/openrisc/kernel/dma.c
parentfcf4de5acf09889e3f0c131ebe385c983006d71b (diff)
parenta0d9a8feb928465f3cb525a19e5fafd06ef66ced (diff)
Merge branch 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-next
* 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2.6: (353 commits) drm/nouveau: remove allocations from gart populate() hook drm/nvc0/fb: slightly improve PMFB intr handling, move out of nvc0_graph.c drm/nvc0/fifo: avoid touching missing subfifos drm/nvd9/disp: bail out of mode_set_base if no fb bound to crtc drm/nvd9/disp: stub some more api hooks so we don't oops on resume drm/nouveau: fix printk typo in ioremap failure path drm/nvc0/pm: minor clock readback fixes drm/nv40/pm: execute memory reset script from vbios drm/nv50/gr: refactor initialisation drm/nouveau: if requested, try harder at disabling sysmem pushbufs drm/nv50/gr: enable ctxprog xfer only when we need it to save power drm/nouveau/dp: add support for displayport table 0x30 drm/nouveau/dp: return master dp table pointer too when looking up encoder drm/nouveau/bios: simplify U/d table hash matching func to just match drm/nouveau/dp: preserve non-pattern bits in DP_TRAINING_PATTERN_SET drm/nvc0/gr: remove MODULE_FIRMWARE() lines drm/nouveau/dp: use alternate lane mask for nvaf drm/nouveau/dp: link rate scripts are selected with a comparison table drm/nv40/pm: write nv40-specific reclocking routines drm/nv40/pm: parse geometric delta clock from vbios ...
Diffstat (limited to 'arch/openrisc/kernel/dma.c')
-rw-r--r--arch/openrisc/kernel/dma.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 968d3ee477e..f1c8ee2895d 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -154,6 +154,33 @@ void or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
/* Nothing special to do here... */
}
+int or1k_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ struct scatterlist *s;
+ int i;
+
+ for_each_sg(sg, s, nents, i) {
+ s->dma_address = or1k_map_page(dev, sg_page(s), s->offset,
+ s->length, dir, NULL);
+ }
+
+ return nents;
+}
+
+void or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ struct scatterlist *s;
+ int i;
+
+ for_each_sg(sg, s, nents, i) {
+ or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, NULL);
+ }
+}
+
void or1k_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction dir)
@@ -187,5 +214,4 @@ static int __init dma_init(void)
return 0;
}
-
fs_initcall(dma_init);