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f26aeace67
This reverts commit 42256c1a8f will lead to
DMA buffer + IOMMU free buffer error:
when we use DMA continue buffer, we have the following two use case:
case 1: DMA + IOMMU, we have two addr
alloc:
dma_handle = dma_alloc_attrs()
dma_addr = rockchip_gem_iommu_map() --> config to vop register
free:
rockchip_gem_iommu_unmap(dma_addr)
dma_free_attrs(dma_handle)
case 2: DMA + no IOMMU, we have one addr
alloc:
dma_handle = dma_alloc_attrs()
dma_addr = dma_handle --> config to vop register
free:
dma_free_attrs(dma_handle)
After convert this commit, we still fix the dma_free_attrs() parameter
error at rockchip_gem_alloc_dma(), detail:
...
dma_free_attrs(drm->dev, obj->size, rk_obj->kvaddr,
old: rk_obj->dma_addr, rk_obj->dma_attrs);
new: rk_obj->dma_handle, rk_obj->dma_attrs);
...
Change-Id: I3c05d632b42e09b082d7e378dc7510548a794727
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Linux kernel
============
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