diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c index 9a1fc8404ace753fa95720e6c1ff813d459c3dc2..175ac187d3828eb6243f4bffaf12f76504e66c34 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c @@ -24,6 +24,10 @@ #include #include +#ifdef __KERNEL__ +#include +#endif + #include "priv.h" struct gk20a_instobj_priv { @@ -41,6 +45,7 @@ struct gk20a_instmem_priv { struct nvkm_instmem base; spinlock_t lock; u64 addr; + struct dma_attrs attrs; }; static u32 @@ -91,8 +96,8 @@ gk20a_instobj_dtor(struct nvkm_object *object) if (unlikely(!node->handle)) return; - dma_free_coherent(dev, node->mem->size << PAGE_SHIFT, node->cpuaddr, - node->handle); + dma_free_attrs(dev, node->mem->size << PAGE_SHIFT, node->cpuaddr, + node->handle, &priv->attrs); nvkm_instobj_destroy(&node->base); } @@ -126,8 +131,9 @@ gk20a_instobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine, node->mem = &node->_mem; - node->cpuaddr = dma_alloc_coherent(dev, npages << PAGE_SHIFT, - &node->handle, GFP_KERNEL); + node->cpuaddr = dma_alloc_attrs(dev, npages << PAGE_SHIFT, + &node->handle, GFP_KERNEL, + &priv->attrs); if (!node->cpuaddr) { nv_error(priv, "cannot allocate DMA memory\n"); return -ENOMEM; @@ -195,6 +201,16 @@ gk20a_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine, spin_lock_init(&priv->lock); + init_dma_attrs(&priv->attrs); + /* + * We will access instmem through PRAMIN and thus do not need a + * consistent CPU pointer or kernel mapping + */ + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &priv->attrs); + dma_set_attr(DMA_ATTR_WEAK_ORDERING, &priv->attrs); + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &priv->attrs); + dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &priv->attrs); + return 0; }