kernel-fxtec-pro1x/arch/ia64/kernel/dma-mapping.c

#include <linux/dma-mapping.h>
#include <linux/export.h>

/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;

struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);

#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)

static int __init dma_init(void)
{
	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);

	return 0;
}
fs_initcall(dma_init);

struct dma_map_ops *dma_get_ops(struct device *dev)
{
	return dma_ops;
}
EXPORT_SYMBOL(dma_get_ops);
set up dma_ops appropriately This patch introduces a global pointer, dma_ops, which points to an appropriate dma_mapping_ops that the kernel should use. This is a common way to handle multiple dma_mapping_ops (X86, POWER, and SPARC). dma_ops is set in platform_dma_init. We also set it by hand where machvec_init is callev via subsys_initcall. - IA64_DIG_VTD uses vtd_dma_ops. - IA64_HP_ZX1 uses sba_dma_ops. - IA64_HP_ZX1_SWIOTLB uses hwsw_dma_ops. - IA64_SGI_SN2 uses sn_dma_ops. - The rest use swiotlb_dma_ops. 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> 2009-01-05 07:36:12 -07:00			`#include <linux/dma-mapping.h>`
ia64: Add export.h to arch/ia64 specific files as required Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> 2011-07-31 16:33:21 -06:00			`#include <linux/export.h>`
set up dma_ops appropriately This patch introduces a global pointer, dma_ops, which points to an appropriate dma_mapping_ops that the kernel should use. This is a common way to handle multiple dma_mapping_ops (X86, POWER, and SPARC). dma_ops is set in platform_dma_init. We also set it by hand where machvec_init is callev via subsys_initcall. - IA64_DIG_VTD uses vtd_dma_ops. - IA64_HP_ZX1 uses sba_dma_ops. - IA64_HP_ZX1_SWIOTLB uses hwsw_dma_ops. - IA64_SGI_SN2 uses sn_dma_ops. - The rest use swiotlb_dma_ops. 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> 2009-01-05 07:36:12 -07:00
IA64: fix compile error on IA64_DIG_VTD This moves iommu_detected to arch/ia64/kernel/dma-mapping.c from arch/ia64/kernel/pci-swiotlb.c to fix the following error on on IA64_DIG_VTD: arch/ia64/kernel/built-in.o: In function `pci_iommu_init': pci-dma.c:(.init.text+0xa021): undefined reference to `iommu_detected' pci-dma.c:(.init.text+0xa030): undefined reference to `iommu_detected' drivers/built-in.o: In function `detect_intel_iommu': (.init.text+0x11c0): undefined reference to `iommu_detected' drivers/built-in.o: In function `detect_intel_iommu': (.init.text+0x11e1): undefined reference to `iommu_detected' iommu_detected is used to handle IOMMUs so I guess that arch/ia64/kernel/dma-mapping.c is ok (there might be a better place for it though). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-01-27 07:43:59 -07:00			`/* Set this to 1 if there is a HW IOMMU in the system */`
			`int iommu_detected __read_mostly;`

x86, ia64: convert to use generic dma_map_ops struct This converts X86 and IA64 to use include/linux/dma-mapping.h. It's a bit large but pretty boring. The major change for X86 is converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping operations. The major changes for IA64 is using map_page and unmap_page instead of map_single and unmap_single. 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> 2009-01-05 07:59:02 -07:00			`struct dma_map_ops *dma_ops;`
set up dma_ops appropriately This patch introduces a global pointer, dma_ops, which points to an appropriate dma_mapping_ops that the kernel should use. This is a common way to handle multiple dma_mapping_ops (X86, POWER, and SPARC). dma_ops is set in platform_dma_init. We also set it by hand where machvec_init is callev via subsys_initcall. - IA64_DIG_VTD uses vtd_dma_ops. - IA64_HP_ZX1 uses sba_dma_ops. - IA64_HP_ZX1_SWIOTLB uses hwsw_dma_ops. - IA64_SGI_SN2 uses sn_dma_ops. - The rest use swiotlb_dma_ops. 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> 2009-01-05 07:36:12 -07:00			`EXPORT_SYMBOL(dma_ops);`
add dma_get_ops to struct ia64_machine_vector This adds dma_get_ops hook to struct ia64_machine_vector. We use dma_get_ops() in arch/ia64/kernel/dma-mapping.c, which simply returns the global dma_ops. This is for removing hwsw_dma_ops. 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> 2009-01-05 07:36:16 -07:00
Add dma_debug_init() for ia64 The commit 9916219579d078c80377dd3988c2cc213536d868 was supposed to add CONFIG_DMA_API_DEBUG support to IA64 however I forgot to add dma_debug_init(). Signed-off-by: fujita <fujita@tulip.osrg.net> Acked-by: Fenghua Yu <fenghua.yu@intel.com> 2009-07-09 22:25:05 -06:00			`#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)`

			`static int __init dma_init(void)`
			`{`
[IA64] Fix warning in dma-mapping.c arch/ia64/kernel/dma-mapping.c:14: warning: control reaches end of non-void function arch/ia64/kernel/dma-mapping.c:14: warning: no return statement in function returning non-void This warning was introduced by commit: 390bd132b2831a2ad0268e84bffbfc0680debfe5 Add dma_debug_init() for ia64 Signed-off-by: Tony Luck <tony.luck@intel.com> 2009-08-31 17:54:03 -06:00			`dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);`

			`return 0;`
Add dma_debug_init() for ia64 The commit 9916219579d078c80377dd3988c2cc213536d868 was supposed to add CONFIG_DMA_API_DEBUG support to IA64 however I forgot to add dma_debug_init(). Signed-off-by: fujita <fujita@tulip.osrg.net> Acked-by: Fenghua Yu <fenghua.yu@intel.com> 2009-07-09 22:25:05 -06:00			`}`
			`fs_initcall(dma_init);`

x86, ia64: convert to use generic dma_map_ops struct This converts X86 and IA64 to use include/linux/dma-mapping.h. It's a bit large but pretty boring. The major change for X86 is converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping operations. The major changes for IA64 is using map_page and unmap_page instead of map_single and unmap_single. 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> 2009-01-05 07:59:02 -07:00			`struct dma_map_ops dma_get_ops(struct device dev)`
add dma_get_ops to struct ia64_machine_vector This adds dma_get_ops hook to struct ia64_machine_vector. We use dma_get_ops() in arch/ia64/kernel/dma-mapping.c, which simply returns the global dma_ops. This is for removing hwsw_dma_ops. 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> 2009-01-05 07:36:16 -07:00			`{`
			`return dma_ops;`
			`}`
			`EXPORT_SYMBOL(dma_get_ops);`