diff options
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 8 |
4 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 6b43c1c94e8f..a8685b2e1803 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -551,6 +551,7 @@ static int etnaviv_bind(struct device *dev) mutex_init(&priv->gem_lock); INIT_LIST_HEAD(&priv->gem_list); priv->num_gpus = 0; + priv->shm_gfp_mask = GFP_HIGHUSER | __GFP_RETRY_MAYFAIL | __GFP_NOWARN; priv->cmdbuf_suballoc = etnaviv_cmdbuf_suballoc_new(drm->dev); if (IS_ERR(priv->cmdbuf_suballoc)) { diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index efc656efeb0f..4d8dc9236e5f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -35,6 +35,7 @@ struct etnaviv_drm_private { int num_gpus; struct device_dma_parameters dma_parms; struct etnaviv_gpu *gpu[ETNA_MAX_PIPES]; + gfp_t shm_gfp_mask; struct etnaviv_cmdbuf_suballoc *cmdbuf_suballoc; struct etnaviv_iommu_global *mmu_global; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c index 6adea180d629..dc9ef302f517 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c @@ -602,6 +602,7 @@ static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags, int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, u32 size, u32 flags, u32 *handle) { + struct etnaviv_drm_private *priv = dev->dev_private; struct drm_gem_object *obj = NULL; int ret; @@ -624,8 +625,7 @@ int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, * above new_inode() why this is required _and_ expected if you're * going to pin these pages. */ - mapping_set_gfp_mask(obj->filp->f_mapping, GFP_HIGHUSER | - __GFP_RETRY_MAYFAIL | __GFP_NOWARN); + mapping_set_gfp_mask(obj->filp->f_mapping, priv->shm_gfp_mask); etnaviv_gem_obj_add(dev, obj); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 169db7cc0ec6..a31eeff2b297 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -781,6 +781,14 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) gpu->identity.features &= ~chipFeatures_FAST_CLEAR; } + /* + * If the GPU is part of a system with DMA addressing limitations, + * request pages for our SHM backend buffers from the DMA32 zone to + * hopefully avoid performance killing SWIOTLB bounce buffering. + */ + if (dma_addressing_limited(gpu->dev)) + priv->shm_gfp_mask |= GFP_DMA32; + /* Create buffer: */ ret = etnaviv_cmdbuf_init(priv->cmdbuf_suballoc, &gpu->buffer, PAGE_SIZE); |