[PATCH 02/10] drm/etnaviv: mmuv2: don't map zero page

[Guido Günther]

Hi,
On Wed, Dec 19, 2018 at 03:45:38PM +0100, Lucas Stach wrote:
> Keep the page at address 0 as faulting to catch any potential state
> setup issues early.
> 
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
> index f1c88d8ad5ba..f794e04be9e6 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
> @@ -320,8 +320,8 @@ etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu)
>  	domain = &etnaviv_domain->base;
>  
>  	domain->dev = gpu->dev;
> -	domain->base = 0;
> -	domain->size = (u64)SZ_1G * 4;
> +	domain->base = SZ_4K;
> +	domain->size = (u64)SZ_1G * 4 - SZ_4K;
>  	domain->ops = &etnaviv_iommuv2_ops;
>  
>  	ret = etnaviv_iommuv2_init(etnaviv_domain);
> -- 

Reviewed-By: Guido Günther <agx at sigxcpu.org>

Cheers and sorry for the extreme delay,
 -- Guido