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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2009-01-05 09:36:11 -0500
committerIngo Molnar <mingo@elte.hu>2009-01-06 08:06:49 -0500
commitc82e4417ace9a3a4dddf3332379c771c41040040 (patch)
treeef832180990c759624a2487bcf74aa30e4e362b2 /arch/ia64/kernel
parentb4391dd11df6214ad4c11706a3a606926e86a6ce (diff)
add dma_mapping_ops for SWIOTLB
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> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/Makefile2
-rw-r--r--arch/ia64/kernel/pci-dma.c3
-rw-r--r--arch/ia64/kernel/pci-swiotlb.c9
3 files changed, 8 insertions, 6 deletions
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index c381ea95489..bc1f62a5cfd 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -43,9 +43,7 @@ ifneq ($(CONFIG_IA64_ESI),)
43obj-y += esi_stub.o # must be in kernel proper 43obj-y += esi_stub.o # must be in kernel proper
44endif 44endif
45obj-$(CONFIG_DMAR) += pci-dma.o 45obj-$(CONFIG_DMAR) += pci-dma.o
46ifeq ($(CONFIG_DMAR), y)
47obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o 46obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
48endif
49 47
50# The gate DSO image is built using a special linker script. 48# The gate DSO image is built using a special linker script.
51targets += gate.so gate-syms.o 49targets += gate.so gate-syms.o
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 2a92f637431..f8c38bd2c36 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;
32int force_iommu __read_mostly; 32int force_iommu __read_mostly;
33#endif 33#endif
34 34
35/* Set this to 1 if there is a HW IOMMU in the system */
36int iommu_detected __read_mostly;
37
38/* Dummy device used for NULL arguments (normally ISA). Better would 35/* Dummy device used for NULL arguments (normally ISA). Better would
39 be probably a smaller DMA mask, but this is bug-to-bug compatible 36 be probably a smaller DMA mask, but this is bug-to-bug compatible
40 to i386. */ 37 to i386. */
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 16c50516dbc..b62fb932b99 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -13,12 +13,18 @@
13int swiotlb __read_mostly; 13int swiotlb __read_mostly;
14EXPORT_SYMBOL(swiotlb); 14EXPORT_SYMBOL(swiotlb);
15 15
16/* Set this to 1 if there is a HW IOMMU in the system */
17int iommu_detected __read_mostly;
18
16struct dma_mapping_ops swiotlb_dma_ops = { 19struct dma_mapping_ops swiotlb_dma_ops = {
17 .mapping_error = swiotlb_dma_mapping_error,
18 .alloc_coherent = swiotlb_alloc_coherent, 20 .alloc_coherent = swiotlb_alloc_coherent,
19 .free_coherent = swiotlb_free_coherent, 21 .free_coherent = swiotlb_free_coherent,
20 .map_single = swiotlb_map_single, 22 .map_single = swiotlb_map_single,
21 .unmap_single = swiotlb_unmap_single, 23 .unmap_single = swiotlb_unmap_single,
24 .map_single_attrs = swiotlb_map_single_attrs,
25 .unmap_single_attrs = swiotlb_unmap_single_attrs,
26 .map_sg_attrs = swiotlb_map_sg_attrs,
27 .unmap_sg_attrs = swiotlb_unmap_sg_attrs,
22 .sync_single_for_cpu = swiotlb_sync_single_for_cpu, 28 .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
23 .sync_single_for_device = swiotlb_sync_single_for_device, 29 .sync_single_for_device = swiotlb_sync_single_for_device,
24 .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, 30 .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
@@ -28,6 +34,7 @@ struct dma_mapping_ops swiotlb_dma_ops = {
28 .map_sg = swiotlb_map_sg, 34 .map_sg = swiotlb_map_sg,
29 .unmap_sg = swiotlb_unmap_sg, 35 .unmap_sg = swiotlb_unmap_sg,
30 .dma_supported_op = swiotlb_dma_supported, 36 .dma_supported_op = swiotlb_dma_supported,
37 .mapping_error = swiotlb_dma_mapping_error,
31}; 38};
32 39
33void __init pci_swiotlb_init(void) 40void __init pci_swiotlb_init(void)