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/* Copyright (c) 2008-2010, Advanced Micro Devices. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Advanced Micro Devices nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __GSL_HWACCESS_LINUX_H
#define __GSL_HWACCESS_LINUX_H
#ifdef _LINUX
#include "gsl_linux_map.h"
#endif
#include <linux/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
OSINLINE void
kgsl_hwaccess_memread(void *dst, unsigned int gpubase, unsigned int gpuoffset, unsigned int sizebytes, unsigned int touserspace)
{
if (gsl_driver.enable_mmu && (gpubase >= GSL_LINUX_MAP_RANGE_START) && (gpubase < GSL_LINUX_MAP_RANGE_END)) {
gsl_linux_map_read(dst, gpubase+gpuoffset, sizebytes, touserspace);
} else {
mb();
dsb();
if (touserspace)
{
if (copy_to_user(dst, (void *)(gpubase + gpuoffset), sizebytes))
{
return;
}
}
else
{
kos_memcpy(dst, (void *) (gpubase + gpuoffset), sizebytes);
}
mb();
dsb();
}
}
//----------------------------------------------------------------------------
OSINLINE void
kgsl_hwaccess_memwrite(unsigned int gpubase, unsigned int gpuoffset, void *src, unsigned int sizebytes, unsigned int fromuserspace)
{
if (gsl_driver.enable_mmu && (gpubase >= GSL_LINUX_MAP_RANGE_START) && (gpubase < GSL_LINUX_MAP_RANGE_END)) {
gsl_linux_map_write(src, gpubase+gpuoffset, sizebytes, fromuserspace);
} else {
mb();
dsb();
if (fromuserspace)
{
if (copy_from_user((void *)(gpubase + gpuoffset), src, sizebytes))
{
return;
}
}
else
{
kos_memcpy((void *)(gpubase + gpuoffset), src, sizebytes);
}
mb();
dsb();
}
}
//----------------------------------------------------------------------------
OSINLINE void
kgsl_hwaccess_memset(unsigned int gpubase, unsigned int gpuoffset, unsigned int value, unsigned int sizebytes)
{
if (gsl_driver.enable_mmu && (gpubase >= GSL_LINUX_MAP_RANGE_START) && (gpubase < GSL_LINUX_MAP_RANGE_END)) {
gsl_linux_map_set(gpuoffset+gpubase, value, sizebytes);
} else {
mb();
dsb();
kos_memset((void *)(gpubase + gpuoffset), value, sizebytes);
mb();
dsb();
}
}
//----------------------------------------------------------------------------
OSINLINE void
kgsl_hwaccess_regread(gsl_deviceid_t device_id, unsigned int gpubase, unsigned int offsetwords, unsigned int *data)
{
unsigned int *reg;
// unreferenced formal parameter
(void) device_id;
reg = (unsigned int *)(gpubase + (offsetwords << 2));
mb();
dsb();
*data = __raw_readl(reg);
mb();
dsb();
}
//----------------------------------------------------------------------------
OSINLINE void
kgsl_hwaccess_regwrite(gsl_deviceid_t device_id, unsigned int gpubase, unsigned int offsetwords, unsigned int data)
{
unsigned int *reg;
// unreferenced formal parameter
(void) device_id;
reg = (unsigned int *)(gpubase + (offsetwords << 2));
mb();
dsb();
__raw_writel(data, reg);
mb();
dsb();
}
#endif // __GSL_HWACCESS_WINCE_MX51_H
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