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Subject[PATCH 06/13] add dma_mapping_ops for SWIOTLB
Date
There is already dma_mapping_ops for SWIOTLB but there are some
missing hooks.

This is for IA64_DIG_VTD, IA64_HP_ZX1_SWIOTLB, IA64_SGI_UV,
IA64_HP_SIM, IA64_XEN_GUEST and IA64_GENERIC.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
arch/ia64/kernel/Makefile | 2 --
arch/ia64/kernel/pci-dma.c | 3 ---
arch/ia64/kernel/pci-swiotlb.c | 9 ++++++++-
3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index c381ea9..bc1f62a 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -43,9 +43,7 @@ ifneq ($(CONFIG_IA64_ESI),)
obj-y += esi_stub.o # must be in kernel proper
endif
obj-$(CONFIG_DMAR) += pci-dma.o
-ifeq ($(CONFIG_DMAR), y)
obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
-endif

# The gate DSO image is built using a special linker script.
targets += gate.so gate-syms.o
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 2a92f63..f8c38bd 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -32,9 +32,6 @@ int force_iommu __read_mostly = 1;
int force_iommu __read_mostly;
#endif

-/* Set this to 1 if there is a HW IOMMU in the system */
-int iommu_detected __read_mostly;
-
/* Dummy device used for NULL arguments (normally ISA). Better would
be probably a smaller DMA mask, but this is bug-to-bug compatible
to i386. */
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 16c5051..b62fb93 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -13,12 +13,18 @@
int swiotlb __read_mostly;
EXPORT_SYMBOL(swiotlb);

+/* Set this to 1 if there is a HW IOMMU in the system */
+int iommu_detected __read_mostly;
+
struct dma_mapping_ops swiotlb_dma_ops = {
- .mapping_error = swiotlb_dma_mapping_error,
.alloc_coherent = swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
.map_single = swiotlb_map_single,
.unmap_single = swiotlb_unmap_single,
+ .map_single_attrs = swiotlb_map_single_attrs,
+ .unmap_single_attrs = swiotlb_unmap_single_attrs,
+ .map_sg_attrs = swiotlb_map_sg_attrs,
+ .unmap_sg_attrs = swiotlb_unmap_sg_attrs,
.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
.sync_single_for_device = swiotlb_sync_single_for_device,
.sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
@@ -28,6 +34,7 @@ struct dma_mapping_ops swiotlb_dma_ops = {
.map_sg = swiotlb_map_sg,
.unmap_sg = swiotlb_unmap_sg,
.dma_supported_op = swiotlb_dma_supported,
+ .mapping_error = swiotlb_dma_mapping_error,
};

void __init pci_swiotlb_init(void)
--
1.6.0.6


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