contrib/octeon-sdk/cvmx-dma-engine.c

134             uint64_t address = cvmx_ptr_to_phys(cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_DMA(engine)));
136                 cvmx_write_csr(CVMX_NPI_HIGHP_IBUFF_SADDR, address);
138                 cvmx_write_csr(CVMX_NPI_LOWP_IBUFF_SADDR, address);
352             /* DMA doorbells are 32bit writes in little endian space. This means we need to xor the address with 4 */
374  * internal address list.
377  * @param address Address to build list for
378  * @param size    Length of the memory pointed to by address
382 static inline int __cvmx_dma_engine_build_internal_pointers(cvmx_dma_engine_buffer_t *buffers, uint64_t address, int size)
393         buffers[segments].internal.addr = address;
394         address += chunk;
404  * Function used by cvmx_dma_engine_transfer() to build the PCI / PCIe address
407  * @param address Address to build list for
408  * @param size    Length of the memory pointed to by address
410  * @return Number of PCI / PCIe address chunks created. The number of words used
413 static inline int __cvmx_dma_engine_build_external_pointers(cvmx_dma_engine_buffer_t *buffers, uint64_t address, int size)
426             buffers[1].u64 = address;
435             buffers[1].u64 = address;
436             address += MAX_SIZE;
437             buffers[2].u64 = address;
447             buffers[1].u64 = address;
448             address += MAX_SIZE;
449             buffers[2].u64 = address;
450             address += MAX_SIZE;
451             buffers[3].u64 = address;
462             buffers[1].u64 = address;
463             address += MAX_SIZE;
464             buffers[2].u64 = address;
465             address += MAX_SIZE;
466             buffers[3].u64 = address;
467             address += MAX_SIZE;
468             buffers[4].u64 = address;
479             buffers[1].u64 = address;
480             address += MAX_SIZE;
481             buffers[2].u64 = address;
482             address += MAX_SIZE;
483             buffers[3].u64 = address;
484             address += MAX_SIZE;
485             buffers[4].u64 = address;
486             address += MAX_SIZE;
500  * converting a simple address and size into the apropriate internal
501  * or PCI / PCIe address list. This function does not support gather lists,
509  *               INBOUND, and OUTBOUND this is an Octeon memory address. In the
510  *               case of EXTERNAL, this is the source PCI / PCIe address.
513  *               INBOUND, and OUTBOUND this is a PCI / PCIe address. In the
514  *               case of INTERNAL, this is the Octeon memory destination address.