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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-08-23 14:36:15 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-09-17 12:58:16 -0400
commitb82776005369899c1c7ca2e4b2414bb64b538d2c (patch)
treeb07bb5fc8cd2b335f46a43791f0fc7505a57d4ac /include/xen/swiotlb-xen.h
parent5bab7864b1167f9a72d375f6854027db436a1cc1 (diff)
xen/swiotlb: Use the swiotlb_late_init_with_tbl to init Xen-SWIOTLB late when PV PCI is used.
With this patch we provide the functionality to initialize the Xen-SWIOTLB late in the bootup cycle - specifically for Xen PCI-frontend. We still will work if the user had supplied 'iommu=soft' on the Linux command line. Note: We cannot depend on after_bootmem to automatically determine whether this is early or not. This is because when PCI IOMMUs are initialized it is after after_bootmem but before a lot of "other" subsystems are initialized. CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> [v1: Fix smatch warnings] [v2: Added check for xen_swiotlb] [v3: Rebased with new xen-swiotlb changes] [v4: squashed xen/swiotlb: Depending on after_bootmem is not correct in] Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/xen/swiotlb-xen.h')
-rw-r--r--include/xen/swiotlb-xen.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index 4f4d449f00f6..289ee509bda9 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -3,7 +3,7 @@
#include <linux/swiotlb.h>
-extern void xen_swiotlb_init(int verbose);
+extern int xen_swiotlb_init(int verbose, bool early);
extern void
*xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,

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