We utilize the IOMMU_INIT macros to create this dependency:
[pci_xen_swiotlb_detect]
|
[pci_swiotlb_detect_override]
|
[pci_swiotlb_detect_4gb]
And set the SWIOTLB IOMMU_INIT to utilize 'pci_swiotlb_init'
for .init and 'pci_swiotlb_late_init' for .late_init.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: x86@kernel.org
CC: H. Peter Anvin <hpa@zytor.com>
CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
arch/x86/kernel/pci-swiotlb.c | 12 +++++++++++-
1 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index c7a72fa..a5ad584 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -10,7 +10,8 @@
#include <asm/iommu.h>
#include <asm/swiotlb.h>
#include <asm/dma.h>
-
+#include <asm/xen/swiotlb-xen.h>
+#include <asm/iommu_table.h>
int swiotlb __read_mostly;
static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -55,6 +56,10 @@ int __init pci_swiotlb_detect_override(void)
return use_swiotlb;
}
+IOMMU_INIT_FINISH(pci_swiotlb_detect_override,
+ pci_xen_swiotlb_detect,
+ pci_swiotlb_init,
+ pci_swiotlb_late_init);
/*
* if 4GB or more detected (and iommu=off not set) return 1
@@ -69,6 +74,10 @@ int __init pci_swiotlb_detect_4gb(void)
#endif
return swiotlb;
}
+IOMMU_INIT(pci_swiotlb_detect_4gb,
+ pci_swiotlb_detect_override,
+ pci_swiotlb_init,
+ pci_swiotlb_late_init);
void __init pci_swiotlb_init(void)
{
@@ -89,3 +98,4 @@ void __init pci_swiotlb_late_init(void)
swiotlb_print_info();
}
}
+
--
1.7.0.1
--
