Use odp_timer_capability() to determine the max timer resolution

Signed-off-by: Kevin Wang <kevin.w...@arm.com>
---
 example/generator/odp_generator.c             |  8 +++++++-
 example/timer/odp_timer_simple.c              |  9 ++++++++-
 example/timer/odp_timer_test.c                |  8 ++++++--
 test/common_plat/validation/api/timer/timer.c | 28 ++++++++++++++++++---------
 4 files changed, 40 insertions(+), 13 deletions(-)

diff --git a/example/generator/odp_generator.c 
b/example/generator/odp_generator.c
index 9336cec..8f114e6 100644
--- a/example/generator/odp_generator.c
+++ b/example/generator/odp_generator.c
@@ -32,6 +32,7 @@
 #define APPL_MODE_UDP    0                     /**< UDP mode */
 #define APPL_MODE_PING   1                     /**< ping mode */
 #define APPL_MODE_RCV    2                     /**< receive mode */
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
 
 /** print appl mode */
 #define PRINT_APPL_MODE(x) printf("%s(%i)\n", #x, (x))
@@ -813,6 +814,7 @@ int main(int argc, char *argv[])
        interface_t *ifs;
        odp_instance_t instance;
        odph_odpthread_params_t thr_params;
+       odp_timer_capability_t timer_capa;
 
        /* Init ODP before calling anything else */
        if (odp_init_global(&instance, NULL, NULL)) {
@@ -898,7 +900,11 @@ int main(int argc, char *argv[])
        odp_pool_print(pool);
 
        /* Create timer pool */
-       tparams.res_ns = 1 * ODP_TIME_MSEC_IN_NS;
+       if (odp_timer_capability(ODP_CLOCK_CPU, &timer_capa)) {
+               EXAMPLE_ERR("Error: get timer capacity failed.\n");
+               exit(EXIT_FAILURE);
+       }
+       tparams.res_ns = MAX(1 * ODP_TIME_MSEC_IN_NS, timer_capa.max_res);
        tparams.min_tmo = 0;
        tparams.max_tmo = 10000 * ODP_TIME_SEC_IN_NS;
        tparams.num_timers = num_workers; /* One timer per worker */
diff --git a/example/timer/odp_timer_simple.c b/example/timer/odp_timer_simple.c
index 70804bb..fa3ff8e 100644
--- a/example/timer/odp_timer_simple.c
+++ b/example/timer/odp_timer_simple.c
@@ -18,6 +18,8 @@
 /* ODP main header */
 #include <odp_api.h>
 
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+
 int main(int argc ODP_UNUSED, char *argv[] ODP_UNUSED)
 {
        odp_instance_t instance;
@@ -35,6 +37,7 @@ int main(int argc ODP_UNUSED, char *argv[] ODP_UNUSED)
        uint64_t tick;
        odp_timeout_t tmo;
        int ret = 0;
+       odp_timer_capability_t timer_capa;
 
        /*
         * Init ODP app
@@ -61,7 +64,11 @@ int main(int argc ODP_UNUSED, char *argv[] ODP_UNUSED)
        /*
         * Create pool of timeouts
         */
-       tparams.res_ns = 10 * ODP_TIME_MSEC_IN_NS;
+       if (odp_timer_capability(ODP_CLOCK_CPU, &timer_capa)) {
+               ret += 1;
+               goto err_tp;
+       }
+       tparams.res_ns = MAX(10 * ODP_TIME_MSEC_IN_NS, timer_capa.max_res);
        tparams.min_tmo = 10 * ODP_TIME_MSEC_IN_NS;
        tparams.max_tmo = 1 * ODP_TIME_SEC_IN_NS;
        tparams.num_timers = 1; /* One timer per worker */
diff --git a/example/timer/odp_timer_test.c b/example/timer/odp_timer_test.c
index 2196b8c..569fd66 100644
--- a/example/timer/odp_timer_test.c
+++ b/example/timer/odp_timer_test.c
@@ -23,7 +23,7 @@
 #define MAX_WORKERS           32            /**< Max worker threads */
 #define NUM_TMOS              10000         /**< Number of timers */
 #define WAIT_NUM             10    /**< Max tries to rx last tmo per worker */
-
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
 
 /** Test arguments */
 typedef struct {
@@ -259,6 +259,7 @@ static void parse_args(int argc, char *argv[], test_args_t 
*args)
 {
        int opt;
        int long_index;
+       odp_timer_capability_t timer_capa;
 
        static const struct option longopts[] = {
                {"count",      required_argument, NULL, 'c'},
@@ -277,8 +278,11 @@ static void parse_args(int argc, char *argv[], test_args_t 
*args)
        odph_parse_options(argc, argv, shortopts, longopts);
 
        /* defaults */
+       odp_timer_capability(ODP_CLOCK_CPU, &timer_capa);
+
        args->cpu_count     = 0; /* all CPU's */
-       args->resolution_us = 10000;
+       args->resolution_us = MAX(10000,
+                                 timer_capa.max_res / ODP_TIME_USEC_IN_NS);
        args->min_us        = 0;
        args->max_us        = 10000000;
        args->period_us     = 1000000;
diff --git a/test/common_plat/validation/api/timer/timer.c 
b/test/common_plat/validation/api/timer/timer.c
index 8813516..fe523d2 100644
--- a/test/common_plat/validation/api/timer/timer.c
+++ b/test/common_plat/validation/api/timer/timer.c
@@ -20,6 +20,8 @@
 #include "test_debug.h"
 #include "timer.h"
 
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+
 /** @private Timeout range in milliseconds (ms) */
 #define RANGE_MS 2000
 
@@ -149,6 +151,7 @@ void timer_test_odp_timer_cancel(void)
        odp_timeout_t tmo;
        odp_timer_set_t rc;
        uint64_t tick;
+       odp_timer_capability_t timer_capa;
 
        odp_pool_param_init(&params);
        params.type    = ODP_POOL_TIMEOUT;
@@ -159,7 +162,10 @@ void timer_test_odp_timer_cancel(void)
        if (pool == ODP_POOL_INVALID)
                CU_FAIL_FATAL("Timeout pool create failed");
 
-       tparam.res_ns     = 100 * ODP_TIME_MSEC_IN_NS;
+       if (odp_timer_capability(ODP_CLOCK_CPU, &timer_capa))
+               CU_FAIL_FATAL("Get timer capability failed")
+
+       tparam.res_ns     = MAX(100 * ODP_TIME_MSEC_IN_NS, timer_capa.max_res);
        tparam.min_tmo    = 1   * ODP_TIME_SEC_IN_NS;
        tparam.max_tmo    = 10  * ODP_TIME_SEC_IN_NS;
        tparam.num_timers = 1;
@@ -506,6 +512,7 @@ void timer_test_odp_timer_all(void)
        uint64_t ns;
        uint64_t t2;
        pthrd_arg thrdarg;
+       odp_timer_capability_t timer_capa;
 
        /* Reserve at least one core for running other processes so the timer
         * test hopefully can run undisturbed and thus get better timing
@@ -531,12 +538,15 @@ void timer_test_odp_timer_all(void)
 
 #define NAME "timer_pool"
 #define RES (10 * ODP_TIME_MSEC_IN_NS / 3)
-#define MIN (10 * ODP_TIME_MSEC_IN_NS / 3)
-#define MAX (1000000 * ODP_TIME_MSEC_IN_NS)
+#define MIN_TMO (10 * ODP_TIME_MSEC_IN_NS / 3)
+#define MAX_TMO (1000000 * ODP_TIME_MSEC_IN_NS)
        /* Create a timer pool */
-       tparam.res_ns = RES;
-       tparam.min_tmo = MIN;
-       tparam.max_tmo = MAX;
+       if (odp_timer_capability(ODP_CLOCK_CPU, &timer_capa))
+               CU_FAIL("Error: get timer capacity failed.\n");
+
+       tparam.res_ns = MAX(RES, timer_capa.max_res);
+       tparam.min_tmo = MIN_TMO;
+       tparam.max_tmo = MAX_TMO;
        tparam.num_timers = num_workers * NTIMERS;
        tparam.priv = 0;
        tparam.clk_src = ODP_CLOCK_CPU;
@@ -550,9 +560,9 @@ void timer_test_odp_timer_all(void)
        if (odp_timer_pool_info(tp, &tpinfo) != 0)
                CU_FAIL("odp_timer_pool_info");
        CU_ASSERT(strcmp(tpinfo.name, NAME) == 0);
-       CU_ASSERT(tpinfo.param.res_ns == RES);
-       CU_ASSERT(tpinfo.param.min_tmo == MIN);
-       CU_ASSERT(tpinfo.param.max_tmo == MAX);
+       CU_ASSERT(tpinfo.param.res_ns == MAX(RES, timer_capa.max_res));
+       CU_ASSERT(tpinfo.param.min_tmo == MIN_TMO);
+       CU_ASSERT(tpinfo.param.max_tmo == MAX_TMO);
        CU_ASSERT(strcmp(tpinfo.name, NAME) == 0);
 
        LOG_DBG("Timer pool handle: %" PRIu64 "\n", odp_timer_pool_to_u64(tp));
-- 
2.7.4

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