@@ -19,18 +19,10 @@
#define MAX_TOKENS 5
#define READ 0
#define WRITE 1
-#define CON_MON_MBM_LOCAL_BYTES_PATH \
- "%s/%s/mon_groups/%s/mon_data/mon_L3_%02d/mbm_local_bytes"
#define CON_MBM_LOCAL_BYTES_PATH \
"%s/%s/mon_data/mon_L3_%02d/mbm_local_bytes"
-#define MON_MBM_LOCAL_BYTES_PATH \
- "%s/mon_groups/%s/mon_data/mon_L3_%02d/mbm_local_bytes"
-
-#define MBM_LOCAL_BYTES_PATH \
- "%s/mon_data/mon_L3_%02d/mbm_local_bytes"
-
#define CON_MON_LCC_OCCUP_PATH \
"%s/%s/mon_groups/%s/mon_data/mon_L3_%02d/llc_occupancy"
@@ -426,43 +418,15 @@ static int get_mem_bw_imc(char *bw_report, float *bw_imc)
return 0;
}
-void set_mbm_path(const char *ctrlgrp, const char *mongrp, int domain_id)
-{
- if (ctrlgrp && mongrp)
- sprintf(mbm_total_path, CON_MON_MBM_LOCAL_BYTES_PATH,
- RESCTRL_PATH, ctrlgrp, mongrp, domain_id);
- else if (!ctrlgrp && mongrp)
- sprintf(mbm_total_path, MON_MBM_LOCAL_BYTES_PATH, RESCTRL_PATH,
- mongrp, domain_id);
- else if (ctrlgrp && !mongrp)
- sprintf(mbm_total_path, CON_MBM_LOCAL_BYTES_PATH, RESCTRL_PATH,
- ctrlgrp, domain_id);
- else if (!ctrlgrp && !mongrp)
- sprintf(mbm_total_path, MBM_LOCAL_BYTES_PATH, RESCTRL_PATH,
- domain_id);
-}
-
/*
* initialize_mem_bw_resctrl: Appropriately populate "mbm_total_path"
* @ctrlgrp: Name of the control monitor group (con_mon grp)
- * @mongrp: Name of the monitor group (mon grp)
* @domain_id: Domain ID (cache ID; for MB, L3 cache ID)
- * @resctrl_val: Resctrl feature (Eg: mbm, mba.. etc)
*/
-static void initialize_mem_bw_resctrl(const char *ctrlgrp, const char *mongrp,
- int domain_id, char *resctrl_val)
+static void initialize_mem_bw_resctrl(const char *ctrlgrp, int domain_id)
{
- if (!strncmp(resctrl_val, MBM_STR, sizeof(MBM_STR)))
- set_mbm_path(ctrlgrp, mongrp, domain_id);
-
- if (!strncmp(resctrl_val, MBA_STR, sizeof(MBA_STR))) {
- if (ctrlgrp)
- sprintf(mbm_total_path, CON_MBM_LOCAL_BYTES_PATH,
- RESCTRL_PATH, ctrlgrp, domain_id);
- else
- sprintf(mbm_total_path, MBM_LOCAL_BYTES_PATH,
- RESCTRL_PATH, domain_id);
- }
+ sprintf(mbm_total_path, CON_MBM_LOCAL_BYTES_PATH, RESCTRL_PATH,
+ ctrlgrp, domain_id);
}
/*
@@ -850,8 +814,7 @@ int resctrl_val(const struct resctrl_test *test,
if (ret)
goto out;
- initialize_mem_bw_resctrl(param->ctrlgrp, param->mongrp,
- domain_id, resctrl_val);
+ initialize_mem_bw_resctrl(param->ctrlgrp, domain_id);
} else if (!strncmp(resctrl_val, CMT_STR, sizeof(CMT_STR)))
initialize_llc_occu_resctrl(param->ctrlgrp, param->mongrp,
domain_id, resctrl_val);
initialize_mem_bw_resctrl() and set_mbm_path() contain complicated set of conditions, each yielding different file to be opened to measure memory bandwidth through resctrl FS. In practice, only two of them are used. For MBA test, ctrlgrp is always provided, and for MBM test both ctrlgrp and mongrp are set. The file used differ between MBA/MBM test, however, MBM test unnecessarily create monitor group because resctrl FS already provides monitoring interface underneath any ctrlgrp too, which is what the MBA selftest uses. Consolidate memory bandwidth file used to the one used by the MBA selftest. Remove all unused branches opening other files to simplify the code. Suggested-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- v3: - New patch --- tools/testing/selftests/resctrl/resctrl_val.c | 45 ++----------------- 1 file changed, 4 insertions(+), 41 deletions(-)