[rtems commit] sparc: Remove sequence that could trigger B2BST errata
Daniel Hellstrom
danielh at rtems.org
Thu Sep 20 10:59:54 UTC 2018
Module: rtems
Branch: master
Commit: 1c34a9bd944d40d9cfdff5ef4892ab25732626cf
Changeset: http://git.rtems.org/rtems/commit/?id=1c34a9bd944d40d9cfdff5ef4892ab25732626cf
Author: Daniel Cederman <cederman at gaisler.com>
Date: Tue Dec 19 13:36:33 2017 +0100
sparc: Remove sequence that could trigger B2BST errata
---
cpukit/score/cpu/sparc/syscall.S | 2 --
1 file changed, 2 deletions(-)
diff --git a/cpukit/score/cpu/sparc/syscall.S b/cpukit/score/cpu/sparc/syscall.S
index 574cf66..603ed7a 100644
--- a/cpukit/score/cpu/sparc/syscall.S
+++ b/cpukit/score/cpu/sparc/syscall.S
@@ -212,9 +212,7 @@ SYM(syscall_lazy_fp_switch):
std %f30, [%l5 + SPARC_FP_CONTEXT_OFFSET_F30_F31]
SPARC_LEON3FT_B2BST_NOP
st %fsr, [%l5 + SPARC_FP_CONTEXT_OFFSET_FSR]
- SPARC_LEON3FT_B2BST_NOP
st %g0, [%g6 + SPARC_PER_CPU_FP_OWNER_OFFSET]
- SPARC_LEON3FT_B2BST_NOP
st %l5, [%l7 + %lo(SPARC_THREAD_CONTROL_REGISTERS_FP_CONTEXT_OFFSET)]
.Lfp_save_done:
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