diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Kconfig | 25 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pci.h | 18 | ||||
| -rw-r--r-- | arch/powerpc/kernel/dma.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 1 |
4 files changed, 3 insertions, 44 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c32a181..268fd46 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -13,12 +13,6 @@ config 64BIT bool default y if PPC64 -config ARCH_PHYS_ADDR_T_64BIT - def_bool PPC64 || PHYS_64BIT - -config ARCH_DMA_ADDR_T_64BIT - def_bool ARCH_PHYS_ADDR_T_64BIT - config MMU bool default y @@ -187,7 +181,6 @@ config PPC select HAVE_CONTEXT_TRACKING if PPC64 select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_STACKOVERFLOW - select HAVE_DMA_API_DEBUG select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL select HAVE_EBPF_JIT if PPC64 @@ -223,9 +216,11 @@ config PPC select HAVE_SYSCALL_TRACEPOINTS select HAVE_VIRT_CPU_ACCOUNTING select HAVE_IRQ_TIME_ACCOUNTING + select IOMMU_HELPER if PPC64 select IRQ_DOMAIN select IRQ_FORCED_THREADING select MODULES_USE_ELF_RELA + select NEED_SG_DMA_LENGTH select NO_BOOTMEM select OF select OF_EARLY_FLATTREE @@ -478,19 +473,6 @@ config MPROFILE_KERNEL depends on PPC64 && CPU_LITTLE_ENDIAN def_bool !DISABLE_MPROFILE_KERNEL -config IOMMU_HELPER - def_bool PPC64 - -config SWIOTLB - bool "SWIOTLB support" - default n - select IOMMU_HELPER - ---help--- - Support for IO bounce buffering for systems without an IOMMU. - This allows us to DMA to the full physical address space on - platforms where the size of a physical address is larger - than the bus address. Not all platforms support this. - config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" depends on SMP && (PPC_PSERIES || \ @@ -913,9 +895,6 @@ config ZONE_DMA config NEED_DMA_MAP_STATE def_bool (PPC64 || NOT_COHERENT_CACHE) -config NEED_SG_DMA_LENGTH - def_bool y - config GENERIC_ISA_DMA bool depends on ISA_DMA_API diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index 401c62a..2af9ded 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -92,24 +92,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus, #define HAVE_PCI_LEGACY 1 -#ifdef CONFIG_PPC64 - -/* The PCI address space does not equal the physical memory address - * space (we have an IOMMU). The IDE and SCSI device layers use - * this boolean for bounce buffer decisions. - */ -#define PCI_DMA_BUS_IS_PHYS (0) - -#else /* 32-bit */ - -/* The PCI address space does equal the physical memory - * address space (no IOMMU). The IDE and SCSI device layers use - * this boolean for bounce buffer decisions. - */ -#define PCI_DMA_BUS_IS_PHYS (1) - -#endif /* CONFIG_PPC64 */ - extern void pcibios_claim_one_bus(struct pci_bus *b); extern void pcibios_finish_adding_to_bus(struct pci_bus *bus); diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index da20569..138157de 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -309,8 +309,6 @@ int dma_set_coherent_mask(struct device *dev, u64 mask) } EXPORT_SYMBOL(dma_set_coherent_mask); -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16) - int dma_set_mask(struct device *dev, u64 dma_mask) { if (ppc_md.dma_set_mask) @@ -361,7 +359,6 @@ EXPORT_SYMBOL_GPL(dma_get_required_mask); static int __init dma_init(void) { - dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); #ifdef CONFIG_PCI dma_debug_add_bus(&pci_bus_type); #endif diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 67d3125..84b58ab 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -222,6 +222,7 @@ config PTE_64BIT config PHYS_64BIT bool 'Large physical address support' if E500 || PPC_86xx depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx + select PHYS_ADDR_T_64BIT ---help--- This option enables kernel support for larger than 32-bit physical addresses. This feature may not be available on all cores. |
