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authorLucas Stach <l.stach@pengutronix.de>2016-08-17 16:15:25 +0200
committerLucas Stach <l.stach@pengutronix.de>2016-09-15 15:29:32 +0200
commit1486b1cb80cb8676d573a27ced5423658fdd32de (patch)
tree71f4116acca92ed1ea13036d7392d6cb98cc3c97
parentdrm/etnaviv: fold various clock enable/disable functions into top ones (diff)
downloadwireguard-linux-1486b1cb80cb8676d573a27ced5423658fdd32de.tar.xz
wireguard-linux-1486b1cb80cb8676d573a27ced5423658fdd32de.zip
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>
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_mmu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index 29a723fabc17..e2013b5b3f6a 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -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;