diff options
Diffstat (limited to 'include/asm-arm/hardware/iop_adma.h')
| -rw-r--r-- | include/asm-arm/hardware/iop_adma.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/include/asm-arm/hardware/iop_adma.h b/include/asm-arm/hardware/iop_adma.h deleted file mode 100644 index cb7e3611bcb..00000000000 --- a/include/asm-arm/hardware/iop_adma.h +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright © 2006, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - */ -#ifndef IOP_ADMA_H -#define IOP_ADMA_H -#include <linux/types.h> -#include <linux/dmaengine.h> -#include <linux/interrupt.h> - -#define IOP_ADMA_SLOT_SIZE 32 -#define IOP_ADMA_THRESHOLD 4 - -/** - * struct iop_adma_device - internal representation of an ADMA device - * @pdev: Platform device - * @id: HW ADMA Device selector - * @dma_desc_pool: base of DMA descriptor region (DMA address) - * @dma_desc_pool_virt: base of DMA descriptor region (CPU address) - * @common: embedded struct dma_device - */ -struct iop_adma_device { - struct platform_device *pdev; - int id; - dma_addr_t dma_desc_pool; - void *dma_desc_pool_virt; - struct dma_device common; -}; - -/** - * struct iop_adma_chan - internal representation of an ADMA device - * @pending: allows batching of hardware operations - * @completed_cookie: identifier for the most recently completed operation - * @lock: serializes enqueue/dequeue operations to the slot pool - * @mmr_base: memory mapped register base - * @chain: device chain view of the descriptors - * @device: parent device - * @common: common dmaengine channel object members - * @last_used: place holder for allocation to continue from where it left off - * @all_slots: complete domain of slots usable by the channel - * @slots_allocated: records the actual size of the descriptor slot pool - * @irq_tasklet: bottom half where iop_adma_slot_cleanup runs - */ -struct iop_adma_chan { - int pending; - dma_cookie_t completed_cookie; - spinlock_t lock; /* protects the descriptor slot pool */ - void __iomem *mmr_base; - struct list_head chain; - struct iop_adma_device *device; - struct dma_chan common; - struct iop_adma_desc_slot *last_used; - struct list_head all_slots; - int slots_allocated; - struct tasklet_struct irq_tasklet; -}; - -/** - * struct iop_adma_desc_slot - IOP-ADMA software descriptor - * @slot_node: node on the iop_adma_chan.all_slots list - * @chain_node: node on the op_adma_chan.chain list - * @hw_desc: virtual address of the hardware descriptor chain - * @phys: hardware address of the hardware descriptor chain - * @group_head: first operation in a transaction - * @slot_cnt: total slots used in an transaction (group of operations) - * @slots_per_op: number of slots per operation - * @idx: pool index - * @unmap_src_cnt: number of xor sources - * @unmap_len: transaction bytecount - * @async_tx: support for the async_tx api - * @group_list: list of slots that make up a multi-descriptor transaction - * for example transfer lengths larger than the supported hw max - * @xor_check_result: result of zero sum - * @crc32_result: result crc calculation - */ -struct iop_adma_desc_slot { - struct list_head slot_node; - struct list_head chain_node; - void *hw_desc; - struct iop_adma_desc_slot *group_head; - u16 slot_cnt; - u16 slots_per_op; - u16 idx; - u16 unmap_src_cnt; - size_t unmap_len; - struct dma_async_tx_descriptor async_tx; - union { - u32 *xor_check_result; - u32 *crc32_result; - }; -}; - -struct iop_adma_platform_data { - int hw_id; - dma_cap_mask_t cap_mask; - size_t pool_size; -}; - -#define to_iop_sw_desc(addr_hw_desc) \ - container_of(addr_hw_desc, struct iop_adma_desc_slot, hw_desc) -#define iop_hw_desc_slot_idx(hw_desc, idx) \ - ( (void *) (((unsigned long) hw_desc) + ((idx) << 5)) ) -#endif |