[PATCH] ath10k: Enable IOMMU support for WCN3990 target

[Kalle Valo]

Govind Singh <govinds at codeaurora.org> writes:

> When an IOMMU device is available on the platform bus, allocate
> an IOMMU domain and attach the wlan target to it.
> WCN3990 target can then attach an DMA I/O virtual address
> space to scan out of bound transactions.
>
> Signed-off-by: Govind Singh <govinds at codeaurora.org>
> ---
>  drivers/net/wireless/ath/ath10k/snoc.c | 100 ++++++++++++++++++++++++++++++++-
>  drivers/net/wireless/ath/ath10k/snoc.h |   3 +
>  2 files changed, 101 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
> index cd21b25..502263d 100644
> --- a/drivers/net/wireless/ath/ath10k/snoc.c
> +++ b/drivers/net/wireless/ath/ath10k/snoc.c
> @@ -26,6 +26,10 @@
>  #include <linux/platform_device.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/clk.h>
> +#include <asm/dma-iommu.h>
> +#include <linux/iommu.h>
> +#include <linux/dma-mapping.h>

Kbuild bot reported a problem with arm64 but strangely I cannot find the
full report. Anyway, this was the warning:

drivers/net/wireless/ath/ath10k/snoc.c:29:10: fatal error:
asm/dma-iommu.h: No such file or directory

Any ideas? Adding also Arnd, the grand master of compilation problems :)

Full patch here:

https://patchwork.kernel.org/patch/10220719/

-- 
Kalle Valo