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OpenStep 4.2J (Developer)
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driverkit
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i386
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kernelDriver.h
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1993-04-02
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605b
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/* Copyright (c) 1991 NeXT Computer, Inc. All rights reserved.
*
* i386/kernelDriver.h - i386 kernel-only driverkit functions.
*
* HISTORY
* 1-Apr-93 Doug Mitchell at NeXT
* Created.
*/
#ifdef KERNEL
/*
* Allocate memory guranteed to be in the low 16 megabytes of physical
* memory. Used when performing DMA which must deal with only 24 bits
* of address.
*
* Zero will also be returned if no low memory can be allocated.
*
* Memory allocated by IOMallocLow() must be freed by IOFreeLow().
*/
void *IOMallocLow(int size);
void IOFreeLow(void *p, int size);
#endif KERNEL