From: David Woodhouse <dwmw2@infradead.org>
To: linuxppc-dev@ozlabs.org
Cc: viro@zeniv.linux.org.uk
Subject: [PATCH] powerpc: provide __bswapdi2
Date: Fri, 10 May 2013 22:18:27 +0100 [thread overview]
Message-ID: <1368220707.3378.57.camel@shinybook.infradead.org> (raw)
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From: David Woodhouse <David.Woodhouse@intel.com>
Some versions of GCC apparently expect this to be provided by libgcc.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
Untested.
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 19e096b..f077dc2 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -657,6 +657,17 @@ _GLOBAL(__ucmpdi2)
li r3,2
blr
+_GLOBAL(__bswapdi2)
+ rlwinm 10,4,8,0xffffffff
+ rlwinm 11,3,8,0xffffffff
+ rlwimi 10,4,24,0,7
+ rlwimi 11,3,24,0,7
+ rlwimi 10,4,24,16,23
+ rlwimi 11,3,24,16,23
+ mr 4,11
+ mr 3,10
+ blr
+
_GLOBAL(abs)
srawi r4,r3,31
xor r3,r3,r4
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index 5cfa800..3b2e6e8 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -234,6 +234,18 @@ _GLOBAL(__flush_dcache_icache)
isync
blr
+_GLOBAL(__bswapdi2)
+ srdi 8,3,32
+ rlwinm 7,3,8,0xffffffff
+ rlwimi 7,3,24,0,7
+ rlwinm 9,8,8,0xffffffff
+ rlwimi 7,3,24,16,23
+ rlwimi 9,8,24,0,7
+ rlwimi 9,8,24,16,23
+ sldi 7,7,32
+ or 7,7,9
+ mr 3,7
+ blr
#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
/*
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 78b8766..c296665 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -143,7 +143,8 @@ EXPORT_SYMBOL(__lshrdi3);
int __ucmpdi2(unsigned long long, unsigned long long);
EXPORT_SYMBOL(__ucmpdi2);
#endif
-
+long long __bswapdi2(long long);
+EXPORT_SYMBOL(__bswapdi2);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memmove);
--
dwmw2
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next reply other threads:[~2013-05-10 21:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-10 21:18 David Woodhouse [this message]
2013-05-13 6:48 ` [PATCH] powerpc: provide __bswapdi2 Anton Blanchard
2013-05-13 7:20 ` Alan Modra
2013-05-13 10:27 ` David Woodhouse
2013-05-13 16:47 ` Segher Boessenkool
2013-05-13 7:09 ` Michael Neuling
2013-05-13 7:20 ` [PATCH v2] " Michael Neuling
2013-05-13 7:33 ` [PATCH] " Gabriel Paubert
2013-05-13 10:23 ` [PATCH v3] " Michael Neuling
2013-05-13 10:33 ` [PATCH] " David Woodhouse
2013-05-13 10:38 ` David Woodhouse
2013-05-13 10:51 ` Joakim Tjernlund
2013-05-13 11:12 ` Joakim Tjernlund
2013-05-13 13:12 ` Gabriel Paubert
2013-05-13 16:55 ` Segher Boessenkool
2013-05-14 1:09 ` Stephen Rothwell
2013-05-14 1:25 ` Michael Neuling
2013-05-14 6:59 ` David Woodhouse
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