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drm/etnaviv: only try to use the linear window on MMUv1 

As the comment above the code states, the linear window is only
available on MMUv1. Don't try to use it on MMUv2.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Lucas Stach 2016-08-17 16:15:25 +02:00
parent 9c7310c05d
commit 1486b1cb80
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/etnaviv/etnaviv_mmu.c
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@ -115,7 +115,8 @@ int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu,
mutex_lock(&mmu->lock);
/* v1 MMU can optimize single entry (contiguous) scatterlists */
if (sgt->nents == 1 && !(etnaviv_obj->flags & ETNA_BO_FORCE_MMU)) {
if (mmu->version == ETNAVIV_IOMMU_V1 &&
sgt->nents == 1 && !(etnaviv_obj->flags & ETNA_BO_FORCE_MMU)) {
u32 iova;
iova = sg_dma_address(sgt->sgl) - memory_base;