Searched refs:swiotlb (Results 1 – 10 of 10) sorted by relevance
4 DMA and swiotlb7 swiotlb is a memory buffer allocator used by the Linux kernel DMA layer. It is10 the DMA layer calls swiotlb to allocate a temporary memory buffer that conforms16 Device drivers don't interact directly with swiotlb. Instead, drivers inform31 swiotlb was originally created to handle DMA for devices with addressing61 The primary swiotlb APIs are swiotlb_tbl_map_single() and77 swiotlb also provides "sync" APIs that correspond to the dma_sync_*() APIs that79 device. The swiotlb "sync" APIs cause a CPU copy of the data between the80 original buffer and the bounce buffer. Like the dma_sync_*() APIs, the swiotlb86 The swiotlb map/unmap/sync APIs must operate without blocking, as they are[all …]
115 swiotlb
199 :doc:`SWIOTLB <swiotlb>`. However, these methods are not always
9 obj-$(CONFIG_SWIOTLB) += swiotlb.o
105 overridden at runtime using the "swiotlb=<nslabs>" kernel command line120 "swiotlb=" on the kernel command line.143 and <kernel/dma/swiotlb.c>.
3 #define TRACE_SYSTEM swiotlb
168 bool swiotlb = max_pfn > PFN_DOWN(dma32_phys_limit) && in arch_mm_preinit() local175 if (IS_ENABLED(CONFIG_DMA_BOUNCE_UNALIGNED_KMALLOC) && !swiotlb && in arch_mm_preinit()189 swiotlb = true; in arch_mm_preinit()193 swiotlb_init(swiotlb, swiotlb_flags); in arch_mm_preinit()
27 bootargs = "earlycon=uart8250,mmio32,0x11002000 swiotlb=512";
214 Linux kernel DMA APIs, and so bounce buffering through decrypted swiotlb222 DMA APIs, and is bounce buffered through swiotlb memory implicitly like in
7730 F: include/linux/swiotlb.h29831 F: arch/*/include/asm/xen/swiotlb-xen.h29832 F: drivers/xen/swiotlb-xen.c29833 F: include/xen/arm/swiotlb-xen.h29834 F: include/xen/swiotlb-xen.h