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| author | Doug Gilbert <dgilbert@us.ibm.com> | 2016-11-22 11:13:04 -0600 |
|---|---|---|
| committer | Sachin Gupta <sgupta2m@in.ibm.com> | 2017-01-03 22:10:56 -0500 |
| commit | 45b1578c1eb188d7874b1f4e7dbab48ca61f2437 (patch) | |
| tree | 2e585075c4a126ca10fb48da30ec363057d9d9b7 /src | |
| parent | b89ea0f1b898995a3fdb3a9199f551b7a93eda5e (diff) | |
| download | talos-sbe-45b1578c1eb188d7874b1f4e7dbab48ca61f2437.tar.gz talos-sbe-45b1578c1eb188d7874b1f4e7dbab48ca61f2437.zip | |
PK Support for 1.125 timebase scale
Change-Id: I11b399cb2ab86d1113713c8c0ed6a40e8f0504e1
RTC:165134
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/32919
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/32921
Reviewed-by: Hostboot Team <hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/import/chips/p9/procedures/ppe/pk/kernel/pk_init.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/import/chips/p9/procedures/ppe/pk/kernel/pk_init.c b/src/import/chips/p9/procedures/ppe/pk/kernel/pk_init.c index 0681987d..d2220946 100644 --- a/src/import/chips/p9/procedures/ppe/pk/kernel/pk_init.c +++ b/src/import/chips/p9/procedures/ppe/pk/kernel/pk_init.c @@ -5,7 +5,7 @@ /* */ /* OpenPOWER sbe Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2015,2016 */ +/* Contributors Listed Below - COPYRIGHT 2015,2017 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -52,23 +52,29 @@ uint8_t __pk_timebase_rshift = 32; void pk_set_timebase_rshift(uint32_t timebase_freq_hz) { - //Use 1.0 scale if less than halfway between 1.0 and 1.25 - if(timebase_freq_hz <= (PK_BASE_FREQ_HZ + (PK_BASE_FREQ_HZ >> 3))) + //Use 1.0 scale if less than or equal to 1.0625 * base frequency + if(timebase_freq_hz <= (PK_BASE_FREQ_HZ + (PK_BASE_FREQ_HZ >> 4))) { __pk_timebase_rshift = 32; } - //use 1.25 scale if less than halfway between 1.25 and 1.5 + //use 1.125 scale if between 1.0625 and 1.1875 * base frequency + else if(timebase_freq_hz <= (PK_BASE_FREQ_HZ + (PK_BASE_FREQ_HZ >> 4) + (PK_BASE_FREQ_HZ >> 3))) + { + __pk_timebase_rshift = 3; + } + + //use 1.25 scale if between 1,1875 and 1.375 * base frequency else if(timebase_freq_hz <= (PK_BASE_FREQ_HZ + (PK_BASE_FREQ_HZ >> 3) + (PK_BASE_FREQ_HZ >> 2))) { __pk_timebase_rshift = 2; } - //use 1.5 scale if less than halfway between 1.5 and 2.0 + //use 1.5 scale if between 1.375 and 1.75 * base frequency else if(timebase_freq_hz <= (PK_BASE_FREQ_HZ + (PK_BASE_FREQ_HZ >> 2) + (PK_BASE_FREQ_HZ >> 1))) { __pk_timebase_rshift = 1; } - //use 2.0 scale if greater than 1.5 + //use 2.0 scale if greater than 1.75 * base frequency else { __pk_timebase_rshift = 0; |
