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https://github.com/genesi/linux-legacy.git
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aac2fc75d3
* mutex, events, sleeps, process id unabstracted * defines for function types (inline, extern) unabstracted * defines for debug assert change name (KOS_ASSERT -> DEBUG_ASSERT) and left disabled * driver now warns, if logging is enabled, that interruptible mutex locks are interrupted (which never happens in reality but it fixes a warning) * remove fine grained locking "feature" since it's not enabled (and Qualcomm's public driver does not even implement it) * refine mutex initialization where it's still present - don't try and allocate mutex structures where they're always used, just make them parts of the structure (struct mutex * -> struct mutex) * whitespace police
85 lines
3.3 KiB
C
85 lines
3.3 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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#include <linux/mutex.h>
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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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struct mutex lock; // 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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static __inline 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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