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| author | Mathieu Briand <mathieu.briand@linaro.org> | 2012-05-11 11:29:18 +0200 |
|---|---|---|
| committer | Andrey Konovalov <andrey.konovalov@linaro.org> | 2013-05-25 13:04:35 +0400 |
| commit | 0a6da5300c989d978190637506a3a064d3a52492 (patch) | |
| tree | ac60c00fc5a80cce9ae8579d73714d1478de5fac /drivers/cpufreq/arm-bl-cpufreq.c | |
| parent | fd54d96fcaed9c77f1d4fe7d3ba14f8ac4dcee3f (diff) | |
cpufreq/arm-bl-cpufreq: unit tests
Add in-modules tests on arm-bl-cpufreq cpufreq driver.
To build the tests, add the following config option:
ARM_BL_CPUFREQ_TEST=y
The tests will run when the driver is loaded, but they are not run
by default. To run the tests, you need to pass the option
test_config=1 to the arm-bl-cpufreq driver when loading it.
Signed-off-by: Mathieu Briand <mathieu.briand@linaro.org>
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'drivers/cpufreq/arm-bl-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/arm-bl-cpufreq.c | 45 |
1 files changed, 27 insertions, 18 deletions
diff --git a/drivers/cpufreq/arm-bl-cpufreq.c b/drivers/cpufreq/arm-bl-cpufreq.c index 0d7d0fcd4e3..bc633f2d7b0 100644 --- a/drivers/cpufreq/arm-bl-cpufreq.c +++ b/drivers/cpufreq/arm-bl-cpufreq.c @@ -18,7 +18,8 @@ */ #define MODULE_NAME "arm-bl-cpufreq" -#define pr_fmt(fmt) MODULE_NAME ": " fmt +#define __module_pr_fmt(prefix, fmt) MODULE_NAME ": " prefix fmt +#define pr_fmt(fmt) __module_pr_fmt("", fmt) #include <linux/bug.h> #include <linux/cache.h> @@ -32,6 +33,17 @@ #include <asm/bL_switcher.h> +#include "arm-bl-cpufreq.h" + +/* + * Include tests prototypes and includes + * We need to include this file a second time with ARM_BL_CPUFREQ_DEFINE_TESTS + * defined to include functions body. + */ +#include "arm-bl-cpufreq_tests.c" + +#define ARM_BL_CPUFREQ_DEFINE_TESTS +#include "arm-bl-cpufreq_tests.c" /* Dummy frequencies representing the big and little clusters: */ #define FREQ_BIG 1000000 @@ -41,22 +53,6 @@ #define CLUSTER_BIG 0 #define CLUSTER_LITTLE 1 -/* - * Switch latency advertised to cpufreq. This value is bogus and will - * need to be properly calibrated when running on real hardware. - */ -#define BL_CPUFREQ_FAKE_LATENCY 1 - -static struct cpufreq_frequency_table __read_mostly bl_freqs[] = { - { CLUSTER_BIG, FREQ_BIG }, - { CLUSTER_LITTLE, FREQ_LITTLE }, - { 0, CPUFREQ_TABLE_END }, -}; - -/* Cached current cluster for each CPU to save on IPIs */ -static DEFINE_PER_CPU(unsigned int, cpu_cur_cluster); - - /* Miscellaneous helpers */ static unsigned int entry_to_freq( @@ -237,13 +233,26 @@ static int __init bl_cpufreq_module_init(void) { int err; + /* test_config : + * - 0: Do not run tests + * - 1: Run tests and then register cpufreq driver if tests passed + */ + if ((test_config > 0) && (pre_init_tests() != 0)) + return -EINVAL; + err = cpufreq_register_driver(&bl_cpufreq_driver); if(err) pr_info("cpufreq backend driver registration failed (%d)\n", err); - else + else { pr_info("cpufreq backend driver registered.\n"); + if ((test_config > 0) && (post_init_tests() != 0)) { + cpufreq_unregister_driver(&bl_cpufreq_driver); + return -EINVAL; + } + } + return err; } module_init(bl_cpufreq_module_init); |