summaryrefslogtreecommitdiff
path: root/include/asm-arm/hardware/iop_adma.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/hardware/iop_adma.h')
-rw-r--r--include/asm-arm/hardware/iop_adma.h116
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 cb7e3611bcba..000000000000
--- 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