41bb38fc53
This change uses the TRIO IOMMU to map the PCI DMA space and physical memory at different addresses. We also now use the dma_mapping_ops to provide support for non-PCI DMA, PCIe DMA (64-bit) and legacy PCI DMA (32-bit). We use the kernel's software I/O TLB framework (i.e. bounce buffers) for the legacy 32-bit PCI device support since there are a limited number of TLB entries in the IOMMU and it is non-trivial to handle indexing, searching, matching, etc. For 32-bit devices the performance impact of bounce buffers should not be a concern. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> |
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| .. | ||
| Makefile | ||
| asm-offsets.c | ||
| backtrace.c | ||
| compat.c | ||
| compat_signal.c | ||
| early_printk.c | ||
| entry.S | ||
| futex_64.S | ||
| hardwall.c | ||
| head_32.S | ||
| head_64.S | ||
| hvglue.lds | ||
| intvec_32.S | ||
| intvec_64.S | ||
| irq.c | ||
| machine_kexec.c | ||
| messaging.c | ||
| module.c | ||
| pci-dma.c | ||
| pci.c | ||
| pci_gx.c | ||
| proc.c | ||
| process.c | ||
| ptrace.c | ||
| reboot.c | ||
| regs_32.S | ||
| regs_64.S | ||
| relocate_kernel_32.S | ||
| relocate_kernel_64.S | ||
| setup.c | ||
| signal.c | ||
| single_step.c | ||
| smp.c | ||
| smpboot.c | ||
| stack.c | ||
| sys.c | ||
| sysfs.c | ||
| tile-desc_32.c | ||
| tile-desc_64.c | ||
| time.c | ||
| tlb.c | ||
| traps.c | ||
| vmlinux.lds.S | ||