linux

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Files

Oreoluwa Babatunde 0fd17e5983 of: reserved_mem: Allow reserved_mem framework detect "cma=" kernel param

When initializing the default cma region, the "cma=" kernel parameter
takes priority over a DT defined linux,cma-default region. Hence, give
the reserved_mem framework the ability to detect this so that the DT
defined cma region can skip initialization accordingly.

Signed-off-by: Oreoluwa Babatunde <oreoluwa.babatunde@oss.qualcomm.com>
Tested-by: Joy Zou <joy.zou@nxp.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Fixes: 8a6e02d0c0 ("of: reserved_mem: Restructure how the reserved memory regions are processed")
Fixes: 2c223f7239 ("of: reserved_mem: Restructure call site for dma_contiguous_early_fixup()")
Link: https://lore.kernel.org/r/20251210002027.1171519-1-oreoluwa.babatunde@oss.qualcomm.com
[mszyprow: rebased onto v6.19-rc1, added fixes tags, added a stub for
 cma_skip_dt_default_reserved_mem() if no CONFIG_DMA_CMA is set]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

2026-01-29 00:26:36 +01:00

coherent.c

dma-coherent: Warn if OF reserved memory is beyond current coherent DMA mask

2025-04-22 17:44:09 +02:00

contiguous.c

of: reserved_mem: Allow reserved_mem framework detect "cma=" kernel param

2026-01-29 00:26:36 +01:00

debug.c

dma-debug: don't report false positives with DMA_BOUNCE_UNALIGNED_KMALLOC

2025-10-15 13:24:33 -07:00

debug.h

dma-mapping: export new dma_*map_phys() interface