diff options
Diffstat (limited to 'drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_osk_mali.c')
-rw-r--r-- | drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_osk_mali.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_osk_mali.c b/drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_osk_mali.c new file mode 100644 index 00000000000..694d8eeaabc --- /dev/null +++ b/drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_osk_mali.c @@ -0,0 +1,98 @@ +/* + * 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 */ +} |