Lines Matching +full:cpu +full:- +full:viewed

1 /* SPDX-License-Identifier: GPL-2.0 */
9 #include <linux/dma-debug.h>
30  * functions used internally by the DMA-mapping API to provide DMA
37 		pfn -= dev->dma_pfn_offset;  in pfn_to_dma()
46 		pfn += dev->dma_pfn_offset;  in dma_to_pfn()
95 	return dma_to_pfn(dev, *dev->dma_mask);  in dma_max_pfn()
109 	return dev->archdata.dma_coherent;  in is_device_dma_coherent()
113  * arm_dma_alloc - allocate consistent memory for DMA
114  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
116  * @handle: bus-specific DMA address
120  * allocates pages, and will return the CPU-viewed address, and sets @handle
121  * to be the device-viewed address.
127  * arm_dma_free - free memory allocated by arm_dma_alloc
128  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
130  * @cpu_addr: CPU-view address returned from dma_alloc_coherent
131  * @handle: device-view address returned from dma_alloc_coherent
144  * arm_dma_mmap - map a coherent DMA allocation into user space
145  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
147  * @cpu_addr: kernel CPU-view address returned from dma_alloc_coherent
148  * @handle: device-view address returned from dma_alloc_coherent
161  * For SA-1111, IXP425, and ADI systems  the dma-mapping functions are "magic"
164  * On the SA-1111, a bug limits DMA to only certain regions of RAM.
180  * This function should be called by low-level platform code to register
192  * This function should be called by low-level platform code when device