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| author | Douglas Gilbert <dgilbert@us.ibm.com> | 2018-08-15 10:35:47 -0500 |
|---|---|---|
| committer | hostboot <hostboot@us.ibm.com> | 2018-08-24 10:38:53 -0500 |
| commit | ed9af7a1773372c55322c5fc39d7e12571aa9936 (patch) | |
| tree | 782f8588ae41cbc4dbdbe51e3394415a70d4b07d /import | |
| parent | 6e6e58f5455895fb97ffda55d4914c3a19c9c5ca (diff) | |
| download | talos-hcode-ed9af7a1773372c55322c5fc39d7e12571aa9936.tar.gz talos-hcode-ed9af7a1773372c55322c5fc39d7e12571aa9936.zip | |
HCODE Make divide using DERP/DORP atomic
Change-Id: Ib7e1c88f7ac934ba551082f27231fff1bb3961dc
CQ: SW443103
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/64570
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <prasadbgr@in.ibm.com>
Reviewed-by: RAHUL BATRA <rbatra@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Diffstat (limited to 'import')
| -rw-r--r-- | import/chips/p9/procedures/ppe/pk/ppe42/math.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/import/chips/p9/procedures/ppe/pk/ppe42/math.c b/import/chips/p9/procedures/ppe/pk/ppe42/math.c index d6bd329c..b5d038b8 100644 --- a/import/chips/p9/procedures/ppe/pk/ppe42/math.c +++ b/import/chips/p9/procedures/ppe/pk/ppe42/math.c @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HCODE Project */ /* */ -/* COPYRIGHT 2016,2017 */ +/* COPYRIGHT 2016,2018 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -23,6 +23,8 @@ /* */ /* IBM_PROLOG_END_TAG */ #include "ppe42math.h" +#include "ppe42_msr.h" +#include <stdint.h> #ifdef __cplusplus extern "C" @@ -71,6 +73,8 @@ unsigned long udivmodsi4(unsigned long long _a, unsigned long _mod) { + uint32_t ctx = mfmsr(); + wrteei(0); out64(OCB_DERP, _a); do @@ -79,6 +83,8 @@ unsigned long udivmodsi4(unsigned long long _a, } while((~_a) == 0); + mtmsr(ctx); + if(_mod) { return (unsigned long)_a; |
