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107 lines
4.3 KiB
C
107 lines
4.3 KiB
C
/* Copyright (c) 2008-2010, Advanced Micro Devices. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Advanced Micro Devices nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __GSL_DRIVER_H
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#define __GSL_DRIVER_H
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/////////////////////////////////////////////////////////////////////////////
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// macros
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//////////////////////////////////////////////////////////////////////////////
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#ifdef GSL_DEDICATED_PROCESS
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#define GSL_CALLER_PROCESSID_GET() kos_callerprocess_getid()
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#else
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#define GSL_CALLER_PROCESSID_GET() kos_process_getid()
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#endif // GSL_DEDICATED_PROCESS
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#ifdef GSL_LOCKING_COARSEGRAIN
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#define GSL_API_MUTEX_CREATE() gsl_driver.mutex = kos_mutex_create("gsl_global"); \
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if (!gsl_driver.mutex) {return (GSL_FAILURE);}
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#define GSL_API_MUTEX_LOCK() kos_mutex_lock(gsl_driver.mutex)
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#define GSL_API_MUTEX_UNLOCK() kos_mutex_unlock(gsl_driver.mutex)
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#define GSL_API_MUTEX_FREE() kos_mutex_free(gsl_driver.mutex); gsl_driver.mutex = 0;
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#else
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#define GSL_API_MUTEX_CREATE()
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#define GSL_API_MUTEX_LOCK()
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#define GSL_API_MUTEX_UNLOCK()
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#define GSL_API_MUTEX_FREE()
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#endif
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//////////////////////////////////////////////////////////////////////////////
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// types
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//////////////////////////////////////////////////////////////////////////////
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// -------------
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// driver object
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// -------------
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typedef struct _gsl_driver_t {
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gsl_flags_t flags_debug;
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int refcnt;
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unsigned int callerprocess[GSL_CALLER_PROCESS_MAX]; // caller process table
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oshandle_t mutex; // global API mutex
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void *hal;
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gsl_sharedmem_t shmem;
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gsl_device_t device[GSL_DEVICE_MAX];
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int dmi_state; // OS_TRUE = enabled, OS_FALSE otherwise
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gsl_flags_t dmi_mode; // single, double, or triple buffering
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int dmi_frame; // set to -1 when DMI is enabled
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int dmi_max_frame; // indicates the maximum frame # that we will support
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int enable_mmu;
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} gsl_driver_t;
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//////////////////////////////////////////////////////////////////////////////
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// external variable declarations
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//////////////////////////////////////////////////////////////////////////////
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extern gsl_driver_t gsl_driver;
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//////////////////////////////////////////////////////////////////////////////
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// inline functions
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//////////////////////////////////////////////////////////////////////////////
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OSINLINE int
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kgsl_driver_getcallerprocessindex(unsigned int pid, int *index)
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{
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int i;
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// obtain index in caller process table
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for (i = 0; i < GSL_CALLER_PROCESS_MAX; i++)
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{
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if (gsl_driver.callerprocess[i] == pid)
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{
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*index = i;
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return (GSL_SUCCESS);
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}
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}
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return (GSL_FAILURE);
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}
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#endif // __GSL_DRIVER_H
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