From 4d9b977ca674dd40cfc1409a75cb73fca2cee423 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 5 Jan 2009 23:36:12 +0900 Subject: 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 Acked-by: Tony Luck Signed-off-by: Ingo Molnar --- arch/ia64/include/asm/machvec.h | 4 +++- arch/ia64/include/asm/machvec_hpzx1.h | 3 ++- arch/ia64/include/asm/machvec_sn2.h | 3 ++- 3 files changed, 7 insertions(+), 3 deletions(-) (limited to 'arch/ia64/include/asm') diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 59c17e4..d40722c 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -298,6 +298,8 @@ extern void machvec_init_from_cmdline(const char *cmdline); # error Unknown configuration. Update arch/ia64/include/asm/machvec.h. # endif /* CONFIG_IA64_GENERIC */ +extern void swiotlb_dma_init(void); + /* * Define default versions so we can extend machvec for new platforms without having * to update the machvec files for all existing platforms. @@ -328,7 +330,7 @@ extern void machvec_init_from_cmdline(const char *cmdline); # define platform_kernel_launch_event machvec_noop #endif #ifndef platform_dma_init -# define platform_dma_init swiotlb_init +# define platform_dma_init swiotlb_dma_init #endif #ifndef platform_dma_alloc_coherent # define platform_dma_alloc_coherent swiotlb_alloc_coherent diff --git a/arch/ia64/include/asm/machvec_hpzx1.h b/arch/ia64/include/asm/machvec_hpzx1.h index 2f57f51..dd4140b 100644 --- a/arch/ia64/include/asm/machvec_hpzx1.h +++ b/arch/ia64/include/asm/machvec_hpzx1.h @@ -2,6 +2,7 @@ #define _ASM_IA64_MACHVEC_HPZX1_h extern ia64_mv_setup_t dig_setup; +extern ia64_mv_dma_init sba_dma_init; extern ia64_mv_dma_alloc_coherent sba_alloc_coherent; extern ia64_mv_dma_free_coherent sba_free_coherent; extern ia64_mv_dma_map_single_attrs sba_map_single_attrs; @@ -20,7 +21,7 @@ extern ia64_mv_dma_mapping_error sba_dma_mapping_error; */ #define platform_name "hpzx1" #define platform_setup dig_setup -#define platform_dma_init machvec_noop +#define platform_dma_init sba_dma_init #define platform_dma_alloc_coherent sba_alloc_coherent #define platform_dma_free_coherent sba_free_coherent #define platform_dma_map_single_attrs sba_map_single_attrs diff --git a/arch/ia64/include/asm/machvec_sn2.h b/arch/ia64/include/asm/machvec_sn2.h index 781308e..c1f6f87 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 -- cgit v1.1