#include <ppc-asm.h>

#define CONFIG_ALTIVEC

#define r1	1

#define R14 r14
#define R15 r15
#define R16 r16
#define R17 r17
#define R18 r18
#define R19 r19
#define R20 r20
#define R21 r21
#define R22 r22
#define R29 r29
#define R30 r30
#define R31 r31

#define STACKFRAMESIZE	256
#define STK_REG(i)	(112 + ((i)-14)*8)

#define _GLOBAL(A) FUNC_START(test_ ## A)
#define _GLOBAL_TOC(A) _GLOBAL(A)

#define PPC_MTOCRF(A, B)	mtocrf A, B

#define EX_TABLE(x, y)

FUNC_START(enter_vmx_usercopy)
	li	r3,1
	blr

FUNC_START(exit_vmx_usercopy)
	li	r3,0
	blr

FUNC_START(enter_vmx_copy)
	li	r3,1
	blr

FUNC_START(exit_vmx_copy)
	blr

FUNC_START(memcpy_power7)
	blr

FUNC_START(__copy_tofrom_user_power7)
	blr

FUNC_START(__copy_tofrom_user_base)
	blr

#define BEGIN_FTR_SECTION
#define FTR_SECTION_ELSE
#define ALT_FTR_SECTION_END_IFCLR(x)
#define ALT_FTR_SECTION_END(x, y)
#define END_FTR_SECTION_IFCLR(x)
et'>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/samsung?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>samsung</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/samsung/bells.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>bells.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'/><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>Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;</td><td class='right'>2017-02-03 17:10:28 +1100</td></tr>
<tr><th>committer</th><td>Michael Ellerman &lt;mpe@ellerman.id.au&gt;</td><td class='right'>2017-02-08 23:36:29 +1100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/samsung/bells.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>d7df2443cd5f67fc6ee7c05a88e4996e8177f91b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/samsung/bells.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>098a7c0ca4fceb8a65cb1f693c9d71990388933d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/samsung/bells.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>sound/soc/samsung/bells.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/samsung/bells.c?id=a0615a16f7d0ceb5804d295203c302d496d8ee91'>a0615a16f7d0ceb5804d295203c302d496d8ee91</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/samsung/bells.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b&amp;id2=a0615a16f7d0ceb5804d295203c302d496d8ee91'>diff</a>)</td></tr></table>
<div class='commit-subject'>powerpc/mm: Fix spurrious segfaults on radix with autonuma</div><div class='commit-msg'>When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it
clears all the protection bits but leave the PTE valid.

With the Radix MMU, an attempt at executing from such a PTE will
take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G".

It is thus incorrect to treat all such faults as errors. We should
pass them to handle_mm_fault() for autonuma to deal with. The case
of pages that are really not executable is handled by the existing
test for VM_EXEC further down.

That leaves us with catching the kernel attempts at executing user
pages. We can catch that earlier, even before we do find_vma.

It is never valid on powerpc for the kernel to take an exec fault
to begin with. So fold that test with the existing test for the
kernel faulting on kernel addresses to bail out early.

Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report")
Signed-off-by: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Reviewed-by: Aneesh Kumar K.V &lt;aneesh.kumar@linux.vnet.ibm.com&gt;
Acked-by: Balbir Singh &lt;bsingharora@gmail.com&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>Diffstat</a> (limited to 'sound/soc/samsung/bells.c')</div><table summary='diffstat' class='diffstat'>