Staging: sep: Create a structure to hold all the current crap spewed about as globals

For now keep the field names matching the variable names
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/sep/sep_dev.h

+#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 *sep_pci_dev_ptr;
+
+	unsigned long io_memory_start_physical_address;
+	unsigned long io_memory_end_physical_address;
+	unsigned long io_memory_size;
+	void *io_memory_start_virtual_address;
+
+	/* restricted access region */
+	unsigned long rar_physical_address;
+	void *rar_virtual_address;
+
+	/* shared memory region */
+	unsigned long shared_physical_address;
+	void *shared_virtual_address;
+
+	/* firmware regions */
+	unsigned long cache_physical_address;
+	unsigned long cache_size;
+	void *cache_virtual_address;
+
+	unsigned long resident_physical_address;
+	unsigned long resident_size;
+	void *resident_virtual_address;
+
+	/* device interrupt (as retrieved from PCI) */
+	int sep_irq;
+
+	unsigned long rar_region_addr;
+
+	/* start address of the access to the SEP registers from driver */
+	unsigned long reg_base_address;
+	/* transaction counter that coordinates the transactions between SEP and HOST */
+	unsigned long host_to_sep_send_counter;
+	/* counter for the messages from sep */
+	unsigned long sep_to_host_reply_counter;
+	/* 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_data_array[SEP_DRIVER_NUM_FLOWS];
+
+	/* flag for API mode - 1 -is blocking, 0 is non-blocking */
+	unsigned long block_mode_flag;
+
+	/* pointer to the workqueue that handles the flow done interrupts */
+	struct workqueue_struct *flow_wq_ptr;
+
+	/* address of the shared memory allocated during init for SEP driver */
+	unsigned long shared_area_addr;
+	/* the physical address of the shared area */
+	unsigned long phys_shared_area_addr;
+
+	/* Message Shared Area start address - will be allocated during init */
+	unsigned long message_shared_area_addr;
+};
+
+extern struct sep_device *sep_dev;
+
+extern inline void sep_write_reg(struct sep_device *dev, int reg, u32 value)
+{
+	void __iomem *addr = dev->reg_base_address + reg;
+	writel(value, reg);
+}
+
+extern inline u32 sep_read_reg(struct sep_device *dev, int reg)
+{
+	void __iomem *addr = dev->reg_base_address + reg;
+	return readl(reg);
+}
+
+#endif
+

drivers/staging/sep/sep_driver_config.h

@@ -297,7 +297,7 @@ do { \
 do { \
 	unsigned long  reg_val; \
 	do { \
-		SEP_READ_REGISTER(g_sep_reg_base_address + \
+		SEP_READ_REGISTER(sep_dev->reg_base_address + \
 		HW_SRAM_DATA_READY_REG_ADDR, (reg_val)); \
 	} while (!(reg_val & 0x1)); \
 } while (0)

drivers/staging/sep/sep_driver_ext_api.h

@@ -36,8 +36,6 @@
 /* shared variables */
 extern int sepDebug;
 
-extern unsigned long g_sep_reg_base_address;
-
 /*
 this function loads the ROM code in SEP (needed only in the debug mode on FPGA)
 */