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ath10k: wmi-alloc-chunk should use DMA_BIDIRECTIONAL
authorBen Greear <greearb@candelatech.com>
Tue, 29 Nov 2016 22:00:28 +0000 (14:00 -0800)
committerKalle Valo <kvalo@qca.qualcomm.com>
Thu, 1 Dec 2016 11:16:10 +0000 (13:16 +0200)
commit43ca92d380a85996429601f0d337cbd58b4e5bf9
tree19ad249da7811348b2046d866413ff5334070130tree | snapshot
parent9ec34a86195a65953269d3ee97b90308f469e14ccommit | diff
ath10k: wmi-alloc-chunk should use DMA_BIDIRECTIONAL

These memory chunks are often used as 'swap' by the NIC,
so it will be both reading and writing to these areas.

This seems to fix errors like this on my x86-64 machine:

kernel: DMAR: DMAR:[DMA Write] Request device [05:00.0] fault addr ff5de000
        DMAR:[fault reason 05] PTE Write access is not set

Tested-by: Marek Behun <kabel@blackhole.sk>
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
drivers/net/wireless/ath/ath10k/wmi.c diff | blob | history
Domain: System / Kernel;