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Dan Williams 0036731c88 async_tx: kill tx_set_src and tx_set_dest methods ... The tx_set_src and tx_set_dest methods were originally implemented to allow an array of addresses to be passed down from async_xor to the dmaengine driver while minimizing stack overhead. Removing these methods allows drivers to have all transaction parameters available at 'prep' time, saves two function pointers in struct dma_async_tx_descriptor, and reduces the number of indirect branches.. A consequence of moving this data to the 'prep' routine is that multi-source routines like async_xor need temporary storage to convert an array of linear addresses into an array of dma addresses. In order to keep the same stack footprint of the previous implementation the input array is reused as storage for the dma addresses. This requires that sizeof(dma_addr_t) be less than or equal to sizeof(void *). As a consequence CONFIG_DMADEVICES now depends on !CONFIG_HIGHMEM64G. It also requires that drivers be able to make descriptor resources available when the 'prep' routine is polled. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Shannon Nelson <shannon.nelson@intel.com>		17 years ago
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Kconfig	async_tx: kill tx_set_src and tx_set_dest methods	17 years ago
Makefile	I/OAT: Add DCA services	18 years ago
dmaengine.c	async_tx: kill tx_set_src and tx_set_dest methods	17 years ago
ioat.c	I/OAT: Add support for version 2 of ioatdma device	17 years ago
ioat_dca.c	I/OAT: Add support for version 2 of ioatdma device	17 years ago
ioat_dma.c	async_tx: kill tx_set_src and tx_set_dest methods	17 years ago
ioatdma.h	I/OAT: fixups from code comments	17 years ago
ioatdma_hw.h	I/OAT: Add support for version 2 of ioatdma device	17 years ago
ioatdma_registers.h	I/OAT: Add support for version 2 of ioatdma device	17 years ago
iop-adma.c	async_tx: kill tx_set_src and tx_set_dest methods	17 years ago
iovlock.c	[NET_DMA]: remove unused dma_memcpy_to_kernel_iovec	18 years ago