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Searched refs:best_burst (Results 1 – 2 of 2) sorted by relevance

/Linux-v4.19/drivers/dma/
Dstm32-dma.c330 u32 best_burst = max_burst; in stm32_dma_get_best_burst() local
332 if (best_burst == 1 || !stm32_dma_is_burst_possible(buf_len, threshold)) in stm32_dma_get_best_burst()
335 while ((buf_len < best_burst * width && best_burst > 1) || in stm32_dma_get_best_burst()
336 !stm32_dma_fifo_threshold_is_allowed(best_burst, threshold, in stm32_dma_get_best_burst()
338 if (best_burst > STM32_DMA_MIN_BURST) in stm32_dma_get_best_burst()
339 best_burst = best_burst >> 1; in stm32_dma_get_best_burst()
341 best_burst = 0; in stm32_dma_get_best_burst()
344 return best_burst; in stm32_dma_get_best_burst()
993 u32 num_sgs, best_burst, dma_burst, threshold; in stm32_dma_prep_dma_memcpy() local
1009 best_burst = stm32_dma_get_best_burst(len, STM32_DMA_MAX_BURST, in stm32_dma_prep_dma_memcpy()
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Dstm32-mdma.c429 u32 best_burst; in stm32_mdma_get_best_burst() local
431 best_burst = min((u32)1 << __ffs(tlen | buf_len), in stm32_mdma_get_best_burst()
434 return (best_burst > 0) ? best_burst : 1; in stm32_mdma_get_best_burst()
931 u32 best_burst, tlen; in stm32_mdma_prep_dma_memcpy() local
1005 best_burst = stm32_mdma_get_best_burst(len, tlen, max_burst, in stm32_mdma_prep_dma_memcpy()
1007 mdma_burst = ilog2(best_burst); in stm32_mdma_prep_dma_memcpy()
1018 best_burst = stm32_mdma_get_best_burst(len, tlen, max_burst, in stm32_mdma_prep_dma_memcpy()
1020 mdma_burst = ilog2(best_burst); in stm32_mdma_prep_dma_memcpy()
1059 best_burst = stm32_mdma_get_best_burst(len, tlen, in stm32_mdma_prep_dma_memcpy()
1062 mdma_burst = ilog2(best_burst); in stm32_mdma_prep_dma_memcpy()
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