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| author | Stian Halseth <stian@itx.no> | 2026-02-18 13:00:24 +0100 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2026-02-23 08:33:51 +0100 |
| commit | d5b5e8149af0f5efed58653cbebf1cb3258ce49a (patch) | |
| tree | 0429c53476b9166b6a47338a876b2d0489eab0c7 /tools/perf/examples/git@git.tavy.me:linux.git | |
| parent | 47322c469d4a63ac45b705ca83680671ff71c975 (diff) | |
sparc: Fix page alignment in dma mapping
'phys' may include an offset within the page, while previously used
'base_paddr' was already page-aligned. This caused incorrect DMA mapping
in dma_4u_map_phys and dma_4v_map_phys.
Fix both functions by masking 'phys' with IO_PAGE_MASK, covering both
generic SPARC code and sun4v.
Fixes: 38c0d0ebf520 ("sparc: Use physical address DMA mapping")
Reported-by: Stian Halseth <stian@itx.no>
Closes: https://github.com/sparclinux/issues/issues/75
Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Stian Halseth <stian@itx.no>
Tested-by: Nathaniel Roach <nroach44@nroach44.id.au>
Tested-by: Han Gao <gaohan@iscas.ac.cn> # on SPARC Enterprise T5220
[mszyprow: adjusted commit description a bit]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260218120056.3366-2-stian@itx.no
Diffstat (limited to 'tools/perf/examples/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions