[PATCH] etnaviv: force vertex buffers through the MMU

[Christian Gmeiner]

Hi Lucas,

is there good app you used to run your tests?

2016-11-21 11:58 GMT+01:00 Lucas Stach <l.stach at pengutronix.de>:
> This fixes a vertex data corruption issue if some of the vertex streams
> go through the MMU and some don't.
>
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  src/gallium/drivers/etnaviv/etnaviv_resource.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_resource.c b/src/gallium/drivers/etnaviv/etnaviv_resource.c
> index aefe65bf0e47..94a8a73997a8 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_resource.c
> +++ b/src/gallium/drivers/etnaviv/etnaviv_resource.c
> @@ -201,7 +201,10 @@ etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
>
>     size = setup_miptree(rsc, paddingX, paddingY, msaa_xscale, msaa_yscale);
>
> -   struct etna_bo *bo = etna_bo_new(screen->dev, size, DRM_ETNA_GEM_CACHE_WC);
> +   uint32_t flags = DRM_ETNA_GEM_CACHE_WC;
> +   if (templat->bind & PIPE_BIND_VERTEX_BUFFER)
> +      flags |= DRM_ETNA_GEM_FORCE_MMU;
> +   struct etna_bo *bo = etna_bo_new(screen->dev, size, flags);
>     if (unlikely(bo == NULL)) {
>        BUG("Problem allocating video memory for resource");
>        return NULL;
> --
> 2.10.2

greets
--
Christian Gmeiner, MSc

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