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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2009-01-05 15:36:12 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-06 14:06:50 +0100 |
| commit | 4d9b977ca674dd40cfc1409a75cb73fca2cee423 (patch) | |
| tree | 417f80889ab49c61c2258b157cfe993bdf8d8357 /arch/ia64/include/asm/machvec_sn2.h | |
| parent | add dma_mapping_ops for SWIOTLB (diff) | |
| download | linux-4d9b977ca674dd40cfc1409a75cb73fca2cee423.tar.xz linux-4d9b977ca674dd40cfc1409a75cb73fca2cee423.zip | |
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>
Diffstat (limited to 'arch/ia64/include/asm/machvec_sn2.h')
| -rw-r--r-- | arch/ia64/include/asm/machvec_sn2.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/ia64/include/asm/machvec_sn2.h b/arch/ia64/include/asm/machvec_sn2.h index 781308ea7b88..c1f6f871da81 100644 --- a/arch/ia64/include/asm/machvec_sn2.h +++ b/arch/ia64/include/asm/machvec_sn2.h @@ -55,6 +55,7 @@ extern ia64_mv_readb_t __sn_readb_relaxed; extern ia64_mv_readw_t __sn_readw_relaxed; extern ia64_mv_readl_t __sn_readl_relaxed; extern ia64_mv_readq_t __sn_readq_relaxed; +extern ia64_mv_dma_init sn_dma_init; extern ia64_mv_dma_alloc_coherent sn_dma_alloc_coherent; extern ia64_mv_dma_free_coherent sn_dma_free_coherent; extern ia64_mv_dma_map_single_attrs sn_dma_map_single_attrs; @@ -110,7 +111,7 @@ extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus; #define platform_pci_get_legacy_mem sn_pci_get_legacy_mem #define platform_pci_legacy_read sn_pci_legacy_read #define platform_pci_legacy_write sn_pci_legacy_write -#define platform_dma_init machvec_noop +#define platform_dma_init sn_dma_init #define platform_dma_alloc_coherent sn_dma_alloc_coherent #define platform_dma_free_coherent sn_dma_free_coherent #define platform_dma_map_single_attrs sn_dma_map_single_attrs |