diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/pci-base_32.c | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 7a2a2e93e84..edd5c54ffde 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -26,6 +26,7 @@ obj-y += pci-dma_$(BITS).o bootflag.o e820_$(BITS).o obj-y += quirks.o i8237.o topology.o kdebugfs.o obj-y += alternative.o i8253.o obj-$(CONFIG_X86_64) += pci-nommu_64.o bugs_64.o +obj-$(CONFIG_X86_32) += pci-base_32.o obj-y += tsc_$(BITS).o io_delay.o rtc.o obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o diff --git a/arch/x86/kernel/pci-base_32.c b/arch/x86/kernel/pci-base_32.c new file mode 100644 index 00000000000..b613d735f76 --- /dev/null +++ b/arch/x86/kernel/pci-base_32.c @@ -0,0 +1,20 @@ +#include <linux/mm.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/dma-mapping.h> +#include <asm/dma-mapping.h> + +static dma_addr_t pci32_map_single(struct device *dev, void *ptr, + size_t size, int direction) +{ + WARN_ON(size == 0); + flush_write_buffers(); + return virt_to_phys(ptr); +} + +static const struct dma_mapping_ops pci32_dma_ops = { + .map_single = pci32_map_single, +}; + +const struct dma_mapping_ops *dma_ops = &pci32_dma_ops; +EXPORT_SYMBOL(dma_ops); |