drivers/dma/ste_dma40.c

34  * @disabled_channels: A vector, ending with -1, that marks physical channels
36  * @soft_lli_chans: A vector, that marks physical channels will use LLI by SW
40  * @num_of_soft_lli_chans: The number of channels that needs to be configured
43  * @num_of_memcpy_chans: The number of channels reserved for memcpy.
44  * @num_of_phy_chans: The number of physical channels implemented in HW.
45  * 0 means reading the number of channels from DMA HW but this is only valid
46  * for 'multiple of 4' channels, like 8.
78 /* Max number of logical channels per physical channel */
315 	/* Interrupts on all logical channels */
333 	/* Interrupts on all logical channels */
376  * @lli_log: Same as above but for logical channels.
414  * @pages: The number of pages needed for all physical channels.
430  * channels.
549  * @execmd_lock: Lock for execute command usage since several channels share
556  * @num_memcpy_chans: The number of channels used for memcpy (mem-to-mem
558  * @num_phy_chans: The number of physical channels. Read from HW. This
559  * is the number of available channels for this driver, not counting "Secure
560  * mode" allocated physical channels.
561  * @num_log_chans: The number of logical channels. Calculated from
563  * @dma_both: dma_device channels that can do both memcpy and slave transfers.
564  * @dma_slave: dma_device channels that can do only do slave transfers.
565  * @dma_memcpy: dma_device channels that can do only do memcpy transfers.
566  * @phy_chans: Room for all possible physical channels in system.
567  * @log_chans: Room for all possible logical channels in system.
575  * @phy_res: Vector containing all physical channels.
587  * @gcc_pwr_off_mask: Mask to maintain the channels that can be turned off.
611 	/* Physical half channels */
1676 	/* Read interrupt status of both logical and physical channels */
1945 		 * Spread logical channels across all available physical rather
1947 		 * channels.
2332 	 * destination event lines that trigger logical channels.
2463 	 * resource is free. In case of multiple logical channels
2810 	INIT_LIST_HEAD(&dma->channels);
2831 			      &dma->channels);
2884 		d40_err(base->dev, "Failed to register slave channels\n");
2900 			"Failed to register memcpy only channels\n");
2917 			"Failed to register logical and physical capable channels\n");
3056 			/* Mark security only channels as occupied */
3075 	/* Mark disabled channels as occupied */
3089 	/* Mark soft_lli channels */
3096 	dev_info(base->dev, "%d of %d physical DMA channels available\n",
3116 	 * The clocks for the event lines on which reserved channels exists
3192 	/* The number of physical channels on this HW */
3198 	/* The number of channels used for memcpy */
3207 		 "hardware rev: %d with %d physical and %d logical channels\n",
3327 	/* Configure all our dma channels to default settings */
3461 	of_property_read_u32(np, "dma-channels", &num_phy);
3465 	list = of_get_property(np, "memcpy-channels", &num_memcpy);
3470 			"Invalid number of memcpy channels specified (%d)\n",
3476 	of_property_read_u32_array(np, "memcpy-channels",
3480 	list = of_get_property(np, "disabled-channels", &num_disabled);
3485 			"Invalid number of disabled channels specified (%d)\n",
3490 	of_property_read_u32_array(np, "disabled-channels",