368 /* pasemi_dma_alloc_flag - Allocate a flag (event) for channel synchronization
370  * Allocates a flag for use with channel synchronization (event descriptors).
371  * Returns allocated flag (0-63), < 0 on error.
389 /* pasemi_dma_free_flag - Deallocates a flag (event)
390  * @flag: Flag number to deallocate
392  * Frees up a flag so it can be reused for other purposes.
394 void pasemi_dma_free_flag(int flag)  in pasemi_dma_free_flag()  argument
396 	BUG_ON(test_bit(flag, flags_free));  in pasemi_dma_free_flag()
397 	BUG_ON(flag >= MAX_FLAGS);  in pasemi_dma_free_flag()
398 	set_bit(flag, flags_free);  in pasemi_dma_free_flag()
403 /* pasemi_dma_set_flag - Sets a flag (event) to 1
404  * @flag: Flag number to set active
406  * Sets the flag provided to 1.
408 void pasemi_dma_set_flag(int flag)  in pasemi_dma_set_flag()  argument
410 	BUG_ON(flag >= MAX_FLAGS);  in pasemi_dma_set_flag()
411 	if (flag < 32)  in pasemi_dma_set_flag()
412 		pasemi_write_dma_reg(PAS_DMA_TXF_SFLG0, 1 << flag);  in pasemi_dma_set_flag()
414 		pasemi_write_dma_reg(PAS_DMA_TXF_SFLG1, 1 << flag);  in pasemi_dma_set_flag()
418 /* pasemi_dma_clear_flag - Sets a flag (event) to 0
419  * @flag: Flag number to set inactive
421  * Sets the flag provided to 0.
423 void pasemi_dma_clear_flag(int flag)  in pasemi_dma_clear_flag()  argument
425 	BUG_ON(flag >= MAX_FLAGS);  in pasemi_dma_clear_flag()
426 	if (flag < 32)  in pasemi_dma_clear_flag()
427 		pasemi_write_dma_reg(PAS_DMA_TXF_CFLG0, 1 << flag);  in pasemi_dma_clear_flag()
429 		pasemi_write_dma_reg(PAS_DMA_TXF_CFLG1, 1 << flag);  in pasemi_dma_clear_flag()
455  * @flag: Engine number to deallocate