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/*
* Copyright (C) 2010-2011 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*
* Copyright (C) ST-Ericsson SA 2011
*
* Added support for overriding memory settings in arch_configuration using
* mali_mem module parameter.
*
* Author: Magnus Wendt <magnus.wendt@stericsson.com> for
* ST-Ericsson.
*/
/**
* @file mali_osk_mali.c
* Implementation of the OS abstraction layer which is specific for the Mali kernel device driver
*/
#include <linux/kernel.h>
#include <asm/uaccess.h>
#include "mali_kernel_common.h" /* MALI_xxx macros */
#include "mali_osk.h" /* kernel side OS functions */
#include "mali_uk_types.h"
#include "mali_kernel_linux.h" /* exports initialize/terminate_kernel_device() definition of mali_osk_low_level_mem_init() and term */
#include "arch/config.h" /* contains the configuration of the arch we are compiling for */
extern char* mali_mem;
/* is called from mali_kernel_constructor in common code */
_mali_osk_errcode_t _mali_osk_init( void )
{
if (0 != initialize_kernel_device()) MALI_ERROR(_MALI_OSK_ERR_FAULT);
mali_osk_low_level_mem_init();
MALI_SUCCESS;
}
/* is called from mali_kernel_deconstructor in common code */
void _mali_osk_term( void )
{
mali_osk_low_level_mem_term();
terminate_kernel_device();
}
_mali_osk_errcode_t _mali_osk_resources_init( _mali_osk_resource_t **arch_config, u32 *num_resources )
{
*num_resources = sizeof(arch_configuration) / sizeof(arch_configuration[0]);
*arch_config = arch_configuration;
/* override the MEMORY resource if a value has been supplied from the command line */
if ('\0' != mali_mem[0]) {
char *p = mali_mem;
_mali_osk_resource_type_t mem_type = MEMORY;
unsigned long mem_base = 0;
unsigned long mem_size = memparse(p, &p);
if (*p == '@') {
if ((*(p + 1) == 'O') || (*(p + 1) == 'o')) { /* as in OS. e.g. mali_mem=64M@OS_MEMORY */
mem_type = OS_MEMORY;
mem_base = 0;
} else { /* parse the base address */
mem_type = MEMORY;
mem_base = memparse(p + 1, &p);
}
}
/* change the first memory entry in the architecture config. */
if (0 < mem_size) {
int i;
for (i = 0; i < *num_resources; ++i) {
if ((MEMORY == arch_configuration[i].type) ||
(OS_MEMORY == arch_configuration[i].type)) {
MALI_DEBUG_PRINT( 1, ("Overriding arch resource[%d] :\n",i));
MALI_DEBUG_PRINT( 1, ("Type: %s, base: %x, size %x\n",
(OS_MEMORY==mem_type?"OS_MEMORY":"MEMORY"),mem_base,mem_size));
arch_configuration[i].type = mem_type;
arch_configuration[i].base = mem_base;
arch_configuration[i].size = mem_size;
break;
}
}
}
}
return _MALI_OSK_ERR_OK;
}
void _mali_osk_resources_term( _mali_osk_resource_t **arch_config, u32 num_resources )
{
/* Nothing to do */
}
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