blob: b0032d2b75d302668d37a162b67810284cf7a136 [file] [log] [blame]
/*
* Copyright (C) 2010-2013 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.
*/
/**
* @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 <linux/platform_device.h>
#include <linux/mali/mali_utgard.h>
#include "mali_osk_mali.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"
_mali_osk_errcode_t _mali_osk_resource_find(u32 addr, _mali_osk_resource_t *res)
{
int i;
if (NULL == mali_platform_device)
{
/* Not connected to a device */
return _MALI_OSK_ERR_ITEM_NOT_FOUND;
}
for (i = 0; i < mali_platform_device->num_resources; i++)
{
if (IORESOURCE_MEM == resource_type(&(mali_platform_device->resource[i])) &&
mali_platform_device->resource[i].start == addr)
{
if (NULL != res)
{
res->base = addr;
res->description = mali_platform_device->resource[i].name;
/* Any (optional) IRQ resource belonging to this resource will follow */
if ((i + 1) < mali_platform_device->num_resources &&
IORESOURCE_IRQ == resource_type(&(mali_platform_device->resource[i+1])))
{
res->irq = mali_platform_device->resource[i+1].start;
}
else
{
res->irq = -1;
}
}
return _MALI_OSK_ERR_OK;
}
}
return _MALI_OSK_ERR_ITEM_NOT_FOUND;
}
u32 _mali_osk_resource_base_address(void)
{
u32 lowest_addr = 0xFFFFFFFF;
u32 ret = 0;
if (NULL != mali_platform_device)
{
int i;
for (i = 0; i < mali_platform_device->num_resources; i++)
{
if (mali_platform_device->resource[i].flags & IORESOURCE_MEM &&
mali_platform_device->resource[i].start < lowest_addr)
{
lowest_addr = mali_platform_device->resource[i].start;
ret = lowest_addr;
}
}
}
return ret;
}
_mali_osk_errcode_t _mali_osk_device_data_get(struct _mali_osk_device_data *data)
{
MALI_DEBUG_ASSERT_POINTER(data);
if (NULL != mali_platform_device)
{
struct mali_gpu_device_data* os_data = NULL;
os_data = (struct mali_gpu_device_data*)mali_platform_device->dev.platform_data;
if (NULL != os_data)
{
/* Copy data from OS dependant struct to Mali neutral struct (identical!) */
data->dedicated_mem_start = os_data->dedicated_mem_start;
data->dedicated_mem_size = os_data->dedicated_mem_size;
data->shared_mem_size = os_data->shared_mem_size;
data->fb_start = os_data->fb_start;
data->fb_size = os_data->fb_size;
data->utilization_interval = os_data->utilization_interval;
data->utilization_callback = os_data->utilization_callback;
data->pmu_switch_delay = os_data->pmu_switch_delay;
return _MALI_OSK_ERR_OK;
}
}
return _MALI_OSK_ERR_ITEM_NOT_FOUND;
}
mali_bool _mali_osk_shared_interrupts(void)
{
u32 irqs[128];
u32 i, j, irq, num_irqs_found = 0;
MALI_DEBUG_ASSERT_POINTER(mali_platform_device);
MALI_DEBUG_ASSERT(128 >= mali_platform_device->num_resources);
for (i = 0; i < mali_platform_device->num_resources; i++)
{
if (IORESOURCE_IRQ & mali_platform_device->resource[i].flags)
{
irq = mali_platform_device->resource[i].start;
for (j = 0; j < num_irqs_found; ++j)
{
if (irq == irqs[j])
{
return MALI_TRUE;
}
}
irqs[num_irqs_found++] = irq;
}
}
return MALI_FALSE;
}