[PATCH] etnaviv: force vertex buffers through the MMU

[Lucas Stach]

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