net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988

Browse source

Systems having 4 GiB of RAM and more require DMA addressing beyond the
current 32-bit limit. Starting from MT7988 the hardware now supports
36-bit DMA addressing, let's use that new capability in the driver to
avoid running into swiotlb on systems with 4 GiB of RAM or more.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/95b919c98876c9e49761e44662e7c937479eecb8.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Daniel Golle 2023-08-22 17:33:12 +01:00 • committed by Jakub Kicinski

parent ebb1e4f9cf

commit 2d75891ebc

2 changed files with 48 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

30

drivers/net/ethernet/mediatek/mtk_eth_soc.c

View file

22

drivers/net/ethernet/mediatek/mtk_eth_soc.h

View file