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| author | Stephen Glancy <sglancy@us.ibm.com> | 2017-09-25 15:37:42 -0500 |
|---|---|---|
| committer | Daniel M. Crowell <dcrowell@us.ibm.com> | 2017-10-03 16:33:41 -0400 |
| commit | aa88ac251a8f036165b44435b76e0dce66e5247a (patch) | |
| tree | dc6291a14a23fbe51fa3f27cb81cfb80fadb81d4 /src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H | |
| parent | cf8e670f8a54e8eaac7778c927188594045a6e04 (diff) | |
| download | talos-hostboot-aa88ac251a8f036165b44435b76e0dce66e5247a.tar.gz talos-hostboot-aa88ac251a8f036165b44435b76e0dce66e5247a.zip | |
Updates DRAM minimum utilization to 25%
Change-Id: I7af6a56573e5190607977e5743055b4dc02f2511
CQ:SW396389
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/46696
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: JACOB L. HARVEY <jlharvey@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: ANDRE A. MARIN <aamarin@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/46706
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Diffstat (limited to 'src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H b/src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H index 70156eb04..637d1be79 100644 --- a/src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H +++ b/src/import/chips/p9/procedures/hwp/memory/lib/power_thermal/throttle.H @@ -57,7 +57,7 @@ enum throttle_const : size_t PERCENT_CONVERSION = 100, /// MIN_UTIL is in c% - MIN_UTIL = 100, + MIN_UTIL = 2500, /// IDLE_UTIL is in c% IDLE_UTIL = 0, @@ -264,6 +264,7 @@ inline uint32_t throttled_cmds(const uint32_t i_databus_util, const uint32_t i_n /// /// @brief Calculate the port databus utilization based off of N throttles and M dram clocks +/// @tparam T output type /// @param[in] i_n_throttles N (address operations) allowed within a window of M DRAM clocks /// @param[in] i_num_dram_clocks window of M DRAM clocks /// @param[out] o_calc_util @@ -296,7 +297,13 @@ fapi2::ReturnCode calc_util_from_throttles(const uint16_t i_n_throttles, l_multiplier, i_num_dram_clocks); - o_calc_util = ( (o_calc_util == 0) ? MIN_UTIL : o_calc_util); + // Check for the minimum + if(o_calc_util < MIN_UTIL) + { + FAPI_INF("Calculated utilization (%lu) is less than the minimum utilization: %lu. Setting to minimum value", + o_calc_util, MIN_UTIL); + o_calc_util = MIN_UTIL; + } FAPI_INF("In calc_util_from_throttles, calculated %d for output utilization", o_calc_util); return fapi2::FAPI2_RC_SUCCESS; |
