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| author | Florian Fainelli <f.fainelli@gmail.com> | 2021-03-18 21:03:33 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-26 14:07:06 +0200 |
| commit | f23763ab464f1eaf90912516540165a6e163ad4f (patch) | |
| tree | f14f292f320c11eed4aedbe949f518ad742e64ee /security | |
| parent | 6bfdc3056ca81323870e7c2bee3a62aa9faa78d9 (diff) | |
ARM: Qualify enabling of swiotlb_init()
commit fcf044891c84e38fc90eb736b818781bccf94e38 upstream.
We do not need a SWIOTLB unless we have DRAM that is addressable beyond
the arm_dma_limit. Compare max_pfn with arm_dma_pfn_limit to determine
whether we do need a SWIOTLB to be initialized.
Fixes: ad3c7b18c5b3 ("arm: use swiotlb for bounce buffering on LPAE configs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions