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[Committed/AARCH64] Fix rdma for -mcpu=native

Message ID CA+=Sn1m-GYj3L6uVDuAEXpHG848+F2cq1ek7ZsRMZBzYbQpX-g@mail.gmail.com
State New
Headers show

Commit Message

Andrew Pinski Aug. 13, 2017, 12:17 a.m. UTC 
I noticed that rdma is turned off when using -mcpu=native on ThunderX2
CN99xx which is incorrect.  The main reason it does that is because
rdma is incorrectly recorded as rdma rather than simdrdma as the
feature string in aarch64-option-extensions.def.

This patch fixes and fixes the problem I was seeing as in some
binutils +nordma disables simd also.  Committed as obvious after a
bootstrap/test on aarch64-linux-gnu with no regressions.

Here is my /proc/cpuinfo:
processor       : 29
BogoMIPS        : 400.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
cpuid asimdrdm
CPU implementer : 0x42
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0x516
CPU revision    : 1


Thanks,
Andrew Pinski

ChangeLog:
* aarch64-option-extensions.def (rdma): Fix feature string to what
Linux prints out in /proc/cpuinfo.
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Patch

Index: aarch64-option-extensions.def
===================================================================
--- aarch64-option-extensions.def	(revision 251068)
+++ aarch64-option-extensions.def	(working copy)
@@ -65,6 +65,6 @@  AARCH64_OPT_EXTENSION("rcpc", AARCH64_FL
 
 /* Enabling "rdma" also enables "fp", "simd".
    Disabling "rdma" just disables "rdma".  */
-AARCH64_OPT_EXTENSION("rdma", AARCH64_FL_RDMA, AARCH64_FL_FP | AARCH64_FL_SIMD, 0, "rdma")
+AARCH64_OPT_EXTENSION("rdma", AARCH64_FL_RDMA, AARCH64_FL_FP | AARCH64_FL_SIMD, 0, "asimdrdm")
 
 #undef AARCH64_OPT_EXTENSION