barebox - barebox master repository

	Commit message (Collapse)	Author	Age	Files	Lines
*	dma: move dma_map/unmap_single from ARM to common code	Ahmad Fatoum	2021-03-04	1	-40/+1
\| \| \| \| \| \| \| \| \| \| \| \| \| \|	There's nothing ARM specific about these functions. Move them to a common location, so other arches can use them as well. This also fixes a bug on ARM MMU=n configurations: Previously these two functions these functions only respected dma-ranges translation when compiled with MMU support. DMA address translation is applicable regardless of CPU use of MMU though. Now, dma-ranges should be respected unconditionally. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	device: Introduce dma_offset	Sascha Hauer	2019-12-20	1	-2/+31
\| \| \| \| \| \| \| \| \| \|	For devices that do not have a 1:1 mapping between DMA and CPU we need a dma_offset. This adds dma_offset to struct device_d and starts honoring it in ARM dma_(un)map_single(). Also we add some comments to functions that would normally need a device argument to make the DMA <-> CPU translations device specific. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	ARM: mmu: Make sure DMA coherent memory is zeroed out	Andrey Smirnov	2019-01-21	1	-1/+2
\| \| \| \| \| \| \| \| \| \| \|	In order to avoid passing random/junky values to DMA/HW as well as to allow simplifying memory initialization in individual drivers, change dma_alloc_coherent() to guarantee that memory it returns is properly zeroed out. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	ARM: mmu: Share sanity checking code in mmu_init()	Andrey Smirnov	2019-01-21	1	-2/+21
\| \| \| \| \| \| \| \| \|	Share sanity checking code in mmu_init() as well as code to detect if MMU is on or not on both ARM and ARM64. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	ARM: mmu: Share code for dma_sync_single_for_cpu()	Andrey Smirnov	2019-01-21	1	-0/+8
\| \| \| \| \| \| \| \| \|	Both ARM and ARM64 have identical code for dma_sync_single_for_cpu(). Move it to mmu-common.c so it can be shared. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	ARM: mmu: Share code for dma_alloc_coherent()	Andrey Smirnov	2019-01-21	1	-0/+21
\| \| \| \| \| \| \| \| \| \|	Both ARM and ARM64 implement almost identical algorithms in dma_alloc_coherent(). Move the code to mmu-common.c, so it can be shared. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	ARM: mmu: Share code for dma_free_coherent()	Andrey Smirnov	2019-01-21	1	-0/+8
\| \| \| \| \| \| \| \| \| \|	Now that AArch64 version is calling arch_remap_range() it is identical to ARM version in mmu.c. Move the definition to mmu-common.c to avoid duplication. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
*	ARM: mmu: Share code for dma_(un)map_single()	Andrey Smirnov	2019-01-21	1	-0/+25
	Both ARM and ARM64 define DMA mapping/unmapping functions that are exactly the same. Introduce mmu-common.c and move the code there so it can be shared. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>