linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-06-03 10:23:05 -04:00

Files

Petr Tesarik 22d0213e55 dma-direct: fix use of max_pfn

Calculate the correct physical address of the last byte of memory. Since
max_pfn is in fact "the PFN of the first page after the highest system RAM
in physical address space", the highest address that might be used for a
DMA buffer is one byte below max_pfn << PAGE_SHIFT.

This fix is unlikely to make any difference in practice. It's just that the
current formula is slightly confusing.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260410113506.262579-1-ptesarik@suse.com

2026-04-30 08:21:34 +02:00

coherent.c

of: reserved_mem: switch to ops based OF_DECLARE()

2026-03-26 14:12:02 -05:00

contiguous.c

Merge branch 'dma-contig-for-7.1-modules-prep-v4' into dma-mapping-for-next

2026-03-31 14:52:03 +02:00

debug.c

dma-debug: suppress cacheline overlap warning when arch has no DMA alignment requirement

2026-03-30 09:41:18 +02:00

debug.h

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