mirror of https://github.com/OpenIPC/firmware.git
44 lines
1.2 KiB
Diff
44 lines
1.2 KiB
Diff
--- linux-4.9.37/arch/arm/mm/dma-mapping.c 2017-07-12 16:42:41.000000000 +0300
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+++ linux-4.9.y/arch/arm/mm/dma-mapping.c 2021-06-07 13:01:32.000000000 +0300
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@@ -275,7 +275,7 @@
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return mask;
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}
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-static void __dma_clear_buffer(struct page *page, size_t size, int coherent_flag)
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+void __dma_clear_buffer(struct page *page, size_t size, int coherent_flag)
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{
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/*
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* Ensure that the allocated pages are zeroed, and that any data
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@@ -304,6 +304,7 @@
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}
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}
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}
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+EXPORT_SYMBOL(__dma_clear_buffer);
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/*
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* Allocate a DMA buffer for 'dev' of size 'size' using the
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@@ -528,6 +529,12 @@
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flush_tlb_kernel_range(start, end);
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}
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+void bsp_flush_tlb_kernel_range(unsigned long start, unsigned long end)
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+{
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+ flush_tlb_kernel_range(start, end);
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+}
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+EXPORT_SYMBOL(bsp_flush_tlb_kernel_range);
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+
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static void *__alloc_remap_buffer(struct device *dev, size_t size, gfp_t gfp,
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pgprot_t prot, struct page **ret_page,
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const void *caller, bool want_vaddr)
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@@ -2397,3 +2404,10 @@
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{
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arm_teardown_iommu_dma_ops(dev);
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}
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+
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+void bsp_dmac_map_area(const void *kaddr, size_t size,
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+ enum dma_data_direction dir)
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+{
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+ dmac_map_area(kaddr, size, dir);
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+}
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+EXPORT_SYMBOL(bsp_dmac_map_area);
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