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authorDavid S. Miller <davem@sunset.davemloft.net>2007-07-28 09:39:14 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-30 11:27:34 +0400
commitad7ad57c6127042c411353dddb723765964815db (patch)
tree600484291d9cfa68d54dc9b230f5bd115f495213 /drivers/sbus
parentc7f439b99efbea74c70a5531f92566db5a6731f2 (diff)
downloadlinux-ad7ad57c6127042c411353dddb723765964815db.tar.xz
[SPARC64]: Fix conflicts in SBUS/PCI/EBUS/ISA DMA handling.
Fully unify all of the DMA ops so that subordinate bus types to the DMA operation providers (such as ebus, isa, of_device) can work transparently. Basically, we just make sure that for every system device we create, the dev->archdata 'iommu' and 'stc' fields are filled in. Then we have two platform variants of the DMA ops, one for SUN4U which actually programs the real hardware, and one for SUN4V which makes hypervisor calls. This also fixes the crashes in parport_pc on sparc64, reported by Meelis Roos. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/sbus')
-rw-r--r--drivers/sbus/sbus.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c
index 2553629ec15d..c37d7c2587ff 100644
--- a/drivers/sbus/sbus.c
+++ b/drivers/sbus/sbus.c
@@ -210,6 +210,10 @@ static void __init walk_children(struct device_node *dp, struct sbus_dev *parent
sdev->bus = sbus;
sdev->parent = parent;
+ sdev->ofdev.dev.archdata.iommu =
+ sbus->ofdev.dev.archdata.iommu;
+ sdev->ofdev.dev.archdata.stc =
+ sbus->ofdev.dev.archdata.stc;
fill_sbus_device(dp, sdev);
@@ -269,6 +273,11 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus)
sdev->bus = sbus;
sdev->parent = NULL;
+ sdev->ofdev.dev.archdata.iommu =
+ sbus->ofdev.dev.archdata.iommu;
+ sdev->ofdev.dev.archdata.stc =
+ sbus->ofdev.dev.archdata.stc;
+
fill_sbus_device(dev_dp, sdev);
walk_children(dev_dp, sdev, sbus);