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David S. Miller e3a724edee sparc64: Support cbcond instructions in eBPF JIT. 
cbcond combines a compare with a branch into a single instruction.

The limitations are:

1) Only newer chips support it

2) For immediate compares we are limited to 5-bit signed immediate
   values

3) The branch displacement is limited to 10-bit signed

4) We cannot use it for JSET

Also, cbcond (unlike all other sparc control transfers) lacks a delay
slot.

Currently we don't have a useful instruction we can push into the
delay slot of normal branches.  So using cbcond pretty much always
increases code density, and is therefore a win.

Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-04-24 15:56:21 -07:00
..
alpha Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-15 21:16:30 -04:00
arc ARC udpates for 4.11-rc5 2017-04-01 10:52:19 -07:00
arm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-20 10:35:33 -04:00
arm64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-20 10:35:33 -04:00
avr32 New getsockopt option to get socket cookie 2017-04-08 08:07:01 -07:00
blackfin sched/headers: Move task->mm handling methods to <linux/sched/mm.h> 2017-03-03 01:43:28 +01:00
c6x Merge branch 'regset' (PTRACE_SETREGSET data leakage) 2017-03-29 08:55:25 -07:00
cris Merge branch 'prep-for-5level' 2017-03-10 08:59:07 -08:00
frv New getsockopt option to get socket cookie 2017-04-08 08:07:01 -07:00
h8300 Merge branch 'regset' (PTRACE_SETREGSET data leakage) 2017-03-29 08:55:25 -07:00
hexagon arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
ia64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-15 21:16:30 -04:00
m32r New getsockopt option to get socket cookie 2017-04-08 08:07:01 -07:00
m68k m68k: Wire up statx 2017-03-20 11:27:28 +01:00
metag metag/usercopy: Fault handling fixes 2017-04-07 10:11:53 -07:00
microblaze arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
mips Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-15 21:16:30 -04:00
mn10300 New getsockopt option to get socket cookie 2017-04-08 08:07:01 -07:00
nios2 nios2: reserve boot memory for device tree 2017-04-02 20:13:57 -07:00
openrisc openrisc: Export symbols needed by modules 2017-03-16 00:12:57 +09:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-20 10:35:33 -04:00
powerpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-21 20:23:53 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-21 20:23:53 -07:00
score Fixup for arch/score after extable.h introduction 2017-03-11 14:16:50 -08:00
sh Merge branch 'prep-for-5level' 2017-03-10 08:59:07 -08:00
sparc sparc64: Support cbcond instructions in eBPF JIT. 2017-04-24 15:56:21 -07:00
tile arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
um arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
unicore32 arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
x86 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2017-04-15 14:07:03 -07:00
xtensa New getsockopt option to get socket cookie 2017-04-08 08:07:01 -07:00
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Kconfig scripts/spelling.txt: add "an user" pattern and fix typo instances 2017-02-27 18:43:46 -08:00