dma/ptdma/ptdma.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
4  * -- Based on the CCP driver
25 #include "../virt-dma.h"
94 #define QUEUE_SIZE_VAL			((ffs(CMD_Q_LEN) - 2) & \
96 #define Q_PTR_MASK			(2 << (QUEUE_SIZE_VAL + 5) - 1)
109 #define LSB_COUNT			(LSB_END - LSB_START + 1)
124  * struct pt_passthru_engine - pass-through operation
133  *   - bit_mod, byte_swap, src, dst, src_len
134  *   - mask, mask_len if bit_mod is not PT_PASSTHRU_BITWISE_NOOP
145  * struct pt_cmd - PTDMA operation request
150  * @flags: cmd processing flags
151  * @engine: PTDMA operation to perform (passthru)
152  * @engine_error: PT engine return code
153  * @passthru: engine specific structures, refer to specific engine struct below
158  *   - engine, callback
159  *   - See the operation structures below for what is required for each
167 	u32 engine;  member
249 	 * PTDMA that are available for processing cmds
253 	/* Support for the DMA Engine capabilities */
269  * 8 32-bit words:
270  * word 0: function; engine; control bits
330 	iowrite32(0, pt->cmd_q.reg_control + 0x000C);  in pt_core_disable_queue_interrupts()
335 	iowrite32(SUPPORTED_INTERRUPTS, pt->cmd_q.reg_control + 0x000C);  in pt_core_enable_queue_interrupts()