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Adding tracepoints to inline functions adds tracepoint invocation code for each instance where the function is inlined. The resulting increase in kernel code size can have negative impact: - More cache misses in instruction cache - Reduced amount of DMA-capable memory Therefore change all functions implementing I/O instructions from inline to normal functions. Bloat-o-meter summary after change (using performance_defconfig): add/remove: 24/2 grow/shrink: 4/39 up/down: 2205/-4858 (-2653) Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
29 lines
724 B
C
29 lines
724 B
C
#ifndef S390_CIO_IOASM_H
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#define S390_CIO_IOASM_H
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#include <asm/chpid.h>
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#include <asm/schid.h>
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#include <asm/crw.h>
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#include "orb.h"
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#include "cio.h"
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#include "trace.h"
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/*
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* Some S390 specific IO instructions
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*/
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int stsch(struct subchannel_id schid, struct schib *addr);
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int msch(struct subchannel_id schid, struct schib *addr);
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int tsch(struct subchannel_id schid, struct irb *addr);
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int ssch(struct subchannel_id schid, union orb *addr);
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int csch(struct subchannel_id schid);
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int tpi(struct tpi_info *addr);
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int chsc(void *chsc_area);
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int rchp(struct chp_id chpid);
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int rsch(struct subchannel_id schid);
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int hsch(struct subchannel_id schid);
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int xsch(struct subchannel_id schid);
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int stcrw(struct crw *crw);
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#endif
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