Jim Quinlan e0d072782c dma-mapping: introduce DMA range map, supplanting dma_pfn_offset ... 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>		2020-09-17 18:43:56 +02:00
..
alpha	dma-mapping: introduce dma_get_seg_boundary_nr_pages()	2020-09-03 18:12:15 +02:00
arc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
arm	dma-mapping: introduce DMA range map, supplanting dma_pfn_offset	2020-09-17 18:43:56 +02:00
arm64	arm64: mm: reserve per-numa CMA to localize coherent dma buffers	2020-09-01 09:19:37 +02:00
c6x	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
csky	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
h8300	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
hexagon	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
ia64	dma-mapping: add (back) arch_dma_mark_clean for ia64	2020-09-11 09:10:17 +02:00
m68k	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
microblaze	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mips	dma-direct: rename and cleanup __phys_to_dma	2020-09-11 09:14:43 +02:00
nds32	A set of fixes for lockdep, tracing and RCU:	2020-08-30 11:43:50 -07:00
nios2	mm/nios2: use general page fault accounting	2020-08-12 10:58:03 -07:00
openrisc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
parisc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
powerpc	dma-direct: rename and cleanup __phys_to_dma	2020-09-11 09:14:43 +02:00
riscv	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
s390	dma-mapping: introduce dma_get_seg_boundary_nr_pages()	2020-09-03 18:12:15 +02:00
sh	dma-mapping: introduce DMA range map, supplanting dma_pfn_offset	2020-09-17 18:43:56 +02:00
sparc	dma-mapping: introduce dma_get_seg_boundary_nr_pages()	2020-09-03 18:12:15 +02:00
um	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
x86	dma-mapping: introduce DMA range map, supplanting dma_pfn_offset	2020-09-17 18:43:56 +02:00
xtensa	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
.gitignore
Kconfig	A set oftimekeeping/VDSO updates:	2020-08-14 14:26:08 -07:00