mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 00:34:52 +00:00
e0d072782c
The new field 'dma_range_map' in struct device is used to facilitate the use of single or multiple offsets between mapping regions of cpu addrs and dma addrs. It subsumes the role of "dev->dma_pfn_offset" which was only capable of holding a single uniform offset and had no region bounds checking. The function of_dma_get_range() has been modified so that it takes a single argument -- the device node -- and returns a map, NULL, or an error code. The map is an array that holds the information regarding the DMA regions. Each range entry contains the address offset, the cpu_start address, the dma_start address, and the size of the region. of_dma_configure() is the typical manner to set range offsets but there are a number of ad hoc assignments to "dev->dma_pfn_offset" in the kernel driver code. These cases now invoke the function dma_direct_set_offset(dev, cpu_addr, dma_addr, size). Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com> [hch: various interface cleanups] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Tested-by: Nathan Chancellor <natechancellor@gmail.com> |
||
|---|---|---|
| .. | ||
| hardware | ||
| mach | ||
| vdso | ||
| xen | ||
| arch_gicv3.h | ||
| arch_timer.h | ||
| arm-cci.h | ||
| asm-offsets.h | ||
| assembler.h | ||
| atomic.h | ||
| auxvec.h | ||
| barrier.h | ||
| bitops.h | ||
| bitrev.h | ||
| bL_switcher.h | ||
| bug.h | ||
| bugs.h | ||
| cache.h | ||
| cacheflush.h | ||
| cachetype.h | ||
| checksum.h | ||
| clocksource.h | ||
| cmpxchg.h | ||
| compiler.h | ||
| cp15.h | ||
| cpu.h | ||
| cpufeature.h | ||
| cpuidle.h | ||
| cputype.h | ||
| cti.h | ||
| dcc.h | ||
| delay.h | ||
| device.h | ||
| div64.h | ||
| dma-contiguous.h | ||
| dma-direct.h | ||
| dma-iommu.h | ||
| dma-mapping.h | ||
| dma.h | ||
| dmi.h | ||
| domain.h | ||
| ecard.h | ||
| edac.h | ||
| efi.h | ||
| elf.h | ||
| entry-macro-multi.S | ||
| exception.h | ||
| fb.h | ||
| fiq.h | ||
| firmware.h | ||
| fixmap.h | ||
| floppy.h | ||
| fncpy.h | ||
| fpstate.h | ||
| ftrace.h | ||
| futex.h | ||
| glue-cache.h | ||
| glue-df.h | ||
| glue-pf.h | ||
| glue-proc.h | ||
| glue.h | ||
| gpio.h | ||
| hardirq.h | ||
| highmem.h | ||
| hugetlb-3level.h | ||
| hugetlb.h | ||
| hw_breakpoint.h | ||
| hw_irq.h | ||
| hwcap.h | ||
| hypervisor.h | ||
| ide.h | ||
| idmap.h | ||
| insn.h | ||
| io.h | ||
| irq.h | ||
| irq_work.h | ||
| irqflags.h | ||
| jump_label.h | ||
| Kbuild | ||
| kexec.h | ||
| kgdb.h | ||
| kmap_types.h | ||
| kprobes.h | ||
| krait-l2-accessors.h | ||
| linkage.h | ||
| mc146818rtc.h | ||
| mcpm.h | ||
| mcs_spinlock.h | ||
| memblock.h | ||
| memory.h | ||
| mmu.h | ||
| mmu_context.h | ||
| module.h | ||
| mpu.h | ||
| mtd-xip.h | ||
| neon.h | ||
| nwflash.h | ||
| opcodes-sec.h | ||
| opcodes-virt.h | ||
| opcodes.h | ||
| outercache.h | ||
| page-nommu.h | ||
| page.h | ||
| paravirt.h | ||
| patch.h | ||
| pci.h | ||
| percpu.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable-2level-hwdef.h | ||
| pgtable-2level-types.h | ||
| pgtable-2level.h | ||
| pgtable-3level-hwdef.h | ||
| pgtable-3level-types.h | ||
| pgtable-3level.h | ||
| pgtable-hwdef.h | ||
| pgtable-nommu.h | ||
| pgtable.h | ||
| probes.h | ||
| proc-fns.h | ||
| processor.h | ||
| procinfo.h | ||
| prom.h | ||
| psci.h | ||
| ptdump.h | ||
| ptrace.h | ||
| sections.h | ||
| secure_cntvoff.h | ||
| set_memory.h | ||
| setup.h | ||
| shmparam.h | ||
| signal.h | ||
| smp.h | ||
| smp_plat.h | ||
| smp_scu.h | ||
| smp_twd.h | ||
| sparsemem.h | ||
| spinlock.h | ||
| spinlock_types.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| string.h | ||
| suspend.h | ||
| swab.h | ||
| switch_to.h | ||
| sync_bitops.h | ||
| syscall.h | ||
| system_info.h | ||
| system_misc.h | ||
| tcm.h | ||
| therm.h | ||
| thread_info.h | ||
| thread_notify.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| tls.h | ||
| topology.h | ||
| traps.h | ||
| uaccess-asm.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unaligned.h | ||
| unified.h | ||
| unistd.h | ||
| unwind.h | ||
| uprobes.h | ||
| user.h | ||
| v7m.h | ||
| vdso.h | ||
| vdso_datapage.h | ||
| vermagic.h | ||
| vfp.h | ||
| vfpmacros.h | ||
| vga.h | ||
| virt.h | ||
| vmalloc.h | ||
| word-at-a-time.h | ||
| xor.h | ||