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423216ed32
linux/arch/powerpc/platforms
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Anton Blanchard 423216ed32 powerpc: Use CONFIG_ARCH_HAS_FAST_MULTIPLIER 
I ran some tests to compare hash_64 using shifts and multiplies.
The results:

POWER6:	~2x slower
POWER7: ~2x faster
POWER8: ~2x faster

Now we have a proper config option, select
CONFIG_ARCH_HAS_FAST_MULTIPLIER on POWER7 and POWER8.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-09-25 23:14:49 +10:00
..
8xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
40x powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
44x powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
52xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
82xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
83xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
85xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
86xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
512x powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
amigaone lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual Kconfig 2014-08-08 15:57:26 -07:00
cell powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
chrp of/fdt: update of_get_flat_dt_prop in prep for libfdt 2014-04-30 00:59:15 -05:00
embedded6xx powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
maple POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
pasemi powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
powermac The branch contains the following device tree changes the v3.17 merge 2014-08-14 09:53:39 -06:00
powernv powerpc/jump_label: use HAVE_JUMP_LABEL? 2014-09-25 23:14:45 +10:00
ps3 Merge branch 'powernv-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-04-02 13:47:29 -07:00
pseries pseries: Fix endian issues in cpu hot-removal 2014-09-25 23:14:48 +10:00
fsl_uli1575.c of/irq: Refactor interrupt-map parsing 2013-10-24 11:43:04 +01:00
Kconfig powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00
Kconfig.cputype powerpc: Use CONFIG_ARCH_HAS_FAST_MULTIPLIER 2014-09-25 23:14:49 +10:00
Makefile powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00