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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-12-09 09:17:02 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-12-09 09:19:14 +0100
commitf7698ba75fa283435f5077b9dfb4319d28b9de9a (patch)
tree4bc16a615a35baaf2b482de81cd256a69067ff72 /lib/swiotlb.c
parent798183c54799fbe1e5a5bfabb3a8c0505ffd2149 (diff)
parent374b105797c3d4f29c685f3be535c35f5689b30e (diff)
Merge tag 'v3.13-rc3' into drm-intel-next-queued
Linux 3.13-rc3 I need a backmerge for two reasons: - For merging the ppgtt patches from Ben I need to pull in the bdw support. - We now have duplicated calls to intel_uncore_forcewake_reset in the setup code to due 2 different patches merged into -next and 3.13. The conflict is silen so I need the merge to be able to apply Deepak's fixup patch. Conflicts: drivers/gpu/drm/i915/intel_display.c Trivial conflict, it doesn't even show up in the merge diff. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'lib/swiotlb.c')
-rw-r--r--lib/swiotlb.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 4e8686c7e5a..e4399fa65ad 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -38,6 +38,9 @@
#include <linux/bootmem.h>
#include <linux/iommu-helper.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/swiotlb.h>
+
#define OFFSET(val,align) ((unsigned long) \
( (val) & ( (align) - 1)))
@@ -502,6 +505,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
not_found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
+ dev_warn(hwdev, "swiotlb buffer is full\n");
return SWIOTLB_MAP_ERROR;
found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
@@ -726,6 +730,8 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
if (dma_capable(dev, dev_addr, size) && !swiotlb_force)
return dev_addr;
+ trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);
+
/* Oh well, have to allocate and map a bounce buffer. */
map = map_single(dev, phys, size, dir);
if (map == SWIOTLB_MAP_ERROR) {