Am 13.07.2016 um 19:26 schrieb Manoharan, Rajkumar:
I added a few patches to my 4.7 kernel to enable ath10k to load for 9984,
but it immediately crashes due to IOMMU error when trying to allocate
memory.
I'm building the latest linux-ath tree now and will test that when it
is done, but I am curious to know if anyone has successfully booted
9984 on x86-64?
Ben,
Are you seeing IOMMU error even after wtih your DMA_BIDIRECTIONAL change? Could
you please try with
https://patchwork.kernel.org/patch/9175029/
But increase WMI_MAX_MEM_CHUNK_SIZE to 512.
while debugging i found out that it will allocate up to 800 kb here on
99xx chipsets. truncating this value in any way will definitly cause
out of bound access conditions.
so i assume the code is wrong. the firmware requests the size, so it
should get it. otherwise unexpected behaviour is guaranteed
Sebastian
-Rajkumar
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