lkml.org 
[lkml]   [2016]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v5 8/8] iommu/rockchip: Enable Rockchip IOMMU on ARM64
Date
Am Montag, 28. November 2016, 16:42:27 schrieb Brian Norris:
> Hi,
>
> On Fri, Jun 24, 2016 at 10:13:33AM +0800, Shunqian Zheng wrote:
> > From: Simon Xue <xxm@rock-chips.com>
> >
> > This patch makes it possible to compile the rockchip-iommu driver on
> > ARM64, so that it can be used with 64-bit SoCs equipped with this type
> > of IOMMU.
> >
> > Signed-off-by: Simon Xue <xxm@rock-chips.com>
> > Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
> > Signed-off-by: Tomasz Figa <tfiga@chromium.org>
> > ---
> >
> > drivers/iommu/Kconfig | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index ad08603..5572621 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -218,7 +218,7 @@ config OMAP_IOMMU_DEBUG
> >
> > config ROCKCHIP_IOMMU
> >
> > bool "Rockchip IOMMU Support"
> >
> > - depends on ARM
> > + depends on ARM || ARM64
> >
> > depends on ARCH_ROCKCHIP || COMPILE_TEST
> > select IOMMU_API
> > select ARM_DMA_USE_IOMMU
>
> Whatever happened with the rest of this series? Some of the IOMMU bits
> made it, but the DRM fixes never did, and so this didn't get applied.
> This leaves the whole DRM stack unusable on ARM64 Rockchip systems.
>
> The patch context has changed a bit on patch 7 (and maybe 6?), so
> somebody will need to refresh those on the latest upstream.

I've tried forward-porting these when going through Caesars VOP dts patches,
but was somewhat unsucessful in my small attempt at the time - see [0].


Heiko

[0] https://lkml.org/lkml/2016/11/14/519

\
 
 \ /
  Last update: 2016-11-29 10:23    [W:0.159 / U:0.476 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site