#ifndef _SELFTESTS_POWERPC_BASIC_ASM_H
#define _SELFTESTS_POWERPC_BASIC_ASM_H

#include <ppc-asm.h>
#include <asm/unistd.h>

#define LOAD_REG_IMMEDIATE(reg, expr) \
	lis	reg, (expr)@highest;	\
	ori	reg, reg, (expr)@higher;	\
	rldicr	reg, reg, 32, 31;	\
	oris	reg, reg, (expr)@high;	\
	ori	reg, reg, (expr)@l;

/*
 * Note: These macros assume that variables being stored on the stack are
 * doublewords, while this is usually the case it may not always be the
 * case for each use case.
 */
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define STACK_FRAME_MIN_SIZE 32
#define STACK_FRAME_TOC_POS  24
#define __STACK_FRAME_PARAM(_param)  (32 + ((_param)*8))
#define __STACK_FRAME_LOCAL(_num_params, _var_num)  \
	((STACK_FRAME_PARAM(_num_params)) + ((_var_num)*8))
#else
#define STACK_FRAME_MIN_SIZE 112
#define STACK_FRAME_TOC_POS  40
#define __STACK_FRAME_PARAM(i)  (48 + ((i)*8))

/*
 * Caveat: if a function passed more than 8 doublewords, the caller will have
 * made more space... which would render the 112 incorrect.
 */
#define __STACK_FRAME_LOCAL(_num_params, _var_num)  \
	(112 + ((_var_num)*8))
#endif

/* Parameter x saved to the stack */
#define STACK_FRAME_PARAM(var)    __STACK_FRAME_PARAM(var)

/* Local variable x saved to the stack after x parameters */
#define STACK_FRAME_LOCAL(num_params, var)    \
	__STACK_FRAME_LOCAL(num_params, var)
#define STACK_FRAME_LR_POS   16
#define STACK_FRAME_CR_POS   8

/*
 * It is very important to note here that _extra is the extra amount of
 * stack space needed. This space can be accessed using STACK_FRAME_PARAM()
 * or STACK_FRAME_LOCAL() macros.
 *
 * r1 and r2 are not defined in ppc-asm.h (instead they are defined as sp
 * and toc). Kernel programmers tend to prefer rX even for r1 and r2, hence
 * %1 and %r2. r0 is defined in ppc-asm.h and therefore %r0 gets
 * preprocessed incorrectly, hence r0.
 */
#define PUSH_BASIC_STACK(_extra) \
	mflr	r0; \
	std	r0, STACK_FRAME_LR_POS(%r1); \
	stdu	%r1, -(_extra + STACK_FRAME_MIN_SIZE)(%r1); \
	mfcr	r0; \
	stw	r0, STACK_FRAME_CR_POS(%r1); \
	std	%r2, STACK_FRAME_TOC_POS(%r1);

#define POP_BASIC_STACK(_extra) \
	ld	%r2, STACK_FRAME_TOC_POS(%r1); \
	lwz	r0, STACK_FRAME_CR_POS(%r1); \
	mtcr	r0; \
	addi	%r1, %r1, (_extra + STACK_FRAME_MIN_SIZE); \
	ld	r0, STACK_FRAME_LR_POS(%r1); \
	mtlr	r0;

#endif /* _SELFTESTS_POWERPC_BASIC_ASM_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events'>pmu-events</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch'>arch</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86'>x86</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/westmereep-dp'>westmereep-dp</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json'>cache.json</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 21:58:13 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 21:58:13 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id=e7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba'>e7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id=e7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/'>f63906f41699c8e38af9d12b063e2ceab0286ef2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json'>tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id=e34bac726d27056081d0250c0e173e4b155aa340'>e34bac726d27056081d0250c0e173e4b155aa340</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id2=e34bac726d27056081d0250c0e173e4b155aa340'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id=868c97a846a73e937d835b09b8c885a69df50ec8'>868c97a846a73e937d835b09b8c885a69df50ec8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id2=868c97a846a73e937d835b09b8c885a69df50ec8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'docs-4.10' of git://git.lwn.net/linux<span class='decoration'><a class='deco' href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json?id=e7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba'>HEAD</a><a class='branch-deco' href='/cgit.cgi/linux/net-next.git/log/tools/perf/pmu-events/arch/x86/westmereep-dp/cache.json'>master</a></span></div><div class='commit-msg'>Pull documentation update from Jonathan Corbet:
 "These are the documentation changes for 4.10.

  It's another busy cycle for the docs tree, as the sphinx conversion
  continues. Highlights include:

   - Further work on PDF output, which remains a bit of a pain but
     should be more solid now.

   - Five more DocBook template files converted to Sphinx. Only 27 to
     go... Lots of plain-text files have also been converted and
     integrated.

   - Images in binary formats have been replaced with more
     source-friendly versions.

   - Various bits of organizational work, including the renaming of
     various files discussed at the kernel summit.

   - New documentation for the device_link mechanism.

  ... and, of course, lots of typo fixes and small updates"

* tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits)
  dma-buf: Extract dma-buf.rst
  Update Documentation/00-INDEX
  docs: 00-INDEX: document directories/files with no docs
  docs: 00-INDEX: remove non-existing entries
  docs: 00-INDEX: add missing entries for documentation files/dirs
  docs: 00-INDEX: consolidate process/ and admin-guide/ description
  scripts: add a script to check if Documentation/00-INDEX is sane
  Docs: change sh -&gt; awk in REPORTING-BUGS
  Documentation/core-api/device_link: Add initial documentation
  core-api: remove an unexpected unident
  ppc/idle: Add documentation for powersave=off
  Doc: Correct typo, "Introdution" =&gt; "Introduction"
  Documentation/atomic_ops.txt: convert to ReST markup
  Documentation/local_ops.txt: convert to ReST markup
  Documentation/assoc_array.txt: convert to ReST markup
  docs-rst: parse-headers.pl: cleanup the documentation
  docs-rst: fix media cleandocs target
  docs-rst: media/Makefile: reorganize the rules
  docs-rst: media: build SVG from graphviz files
  docs-rst: replace bayer.png by a SVG image
  ...
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