| #ifndef __SEP_DEV_H__ |
| #define __SEP_DEV_H__ |
| |
| /* |
| * |
| * sep_dev.h - Security Processor Device Structures |
| * |
| * Copyright(c) 2009 Intel Corporation. All rights reserved. |
| * Copyright(c) 2009 Discretix. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that 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., 59 |
| * Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| * |
| * CONTACTS: |
| * |
| * Alan Cox alan@linux.intel.com |
| * |
| */ |
| |
| struct sep_device { |
| /* pointer to pci dev */ |
| struct pci_dev *pdev; |
| |
| unsigned long in_use; |
| |
| /* address of the shared memory allocated during init for SEP driver |
| (coherent alloc) */ |
| void *shared_addr; |
| /* the physical address of the shared area */ |
| dma_addr_t shared_bus; |
| |
| /* restricted access region (coherent alloc) */ |
| dma_addr_t rar_bus; |
| void *rar_addr; |
| /* firmware regions: cache is at rar_addr */ |
| unsigned long cache_size; |
| |
| /* follows the cache */ |
| dma_addr_t resident_bus; |
| unsigned long resident_size; |
| void *resident_addr; |
| |
| /* start address of the access to the SEP registers from driver */ |
| void __iomem *reg_addr; |
| /* transaction counter that coordinates the transactions between SEP and HOST */ |
| unsigned long send_ct; |
| /* counter for the messages from sep */ |
| unsigned long reply_ct; |
| /* counter for the number of bytes allocated in the pool for the current |
| transaction */ |
| unsigned long data_pool_bytes_allocated; |
| |
| /* array of pointers to the pages that represent input data for the synchronic |
| DMA action */ |
| struct page **in_page_array; |
| |
| /* array of pointers to the pages that represent out data for the synchronic |
| DMA action */ |
| struct page **out_page_array; |
| |
| /* number of pages in the sep_in_page_array */ |
| unsigned long in_num_pages; |
| |
| /* number of pages in the sep_out_page_array */ |
| unsigned long out_num_pages; |
| |
| /* global data for every flow */ |
| struct sep_flow_context_t flows[SEP_DRIVER_NUM_FLOWS]; |
| |
| /* pointer to the workqueue that handles the flow done interrupts */ |
| struct workqueue_struct *flow_wq; |
| |
| }; |
| |
| static struct sep_device *sep_dev; |
| |
| static inline void sep_write_reg(struct sep_device *dev, int reg, u32 value) |
| { |
| void __iomem *addr = dev->reg_addr + reg; |
| writel(value, addr); |
| } |
| |
| static inline u32 sep_read_reg(struct sep_device *dev, int reg) |
| { |
| void __iomem *addr = dev->reg_addr + reg; |
| return readl(addr); |
| } |
| |
| /* wait for SRAM write complete(indirect write */ |
| static inline void sep_wait_sram_write(struct sep_device *dev) |
| { |
| u32 reg_val; |
| do |
| reg_val = sep_read_reg(dev, HW_SRAM_DATA_READY_REG_ADDR); |
| while (!(reg_val & 1)); |
| } |
| |
| |
| #endif |