base: unify mp_server and affinity test

* remove outdated cpufreq test for Arndale
* execute new SMP test on hardware not in Qemu in nightly tests

Ref #3041
This commit is contained in:
Stefan Kalkowski 2018-11-13 15:12:29 +01:00 committed by Christian Helmuth
parent 19d7a488de
commit 36fe50ebad
12 changed files with 300 additions and 514 deletions

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@ -1,59 +0,0 @@
#
# \brief Test to affinity subspacing
# \author Norman Feske
#
if {[have_spec pbxa9] || (![have_spec nova] && ![have_spec foc])} {
puts "Platform is unsupported."
exit 0
}
build "core ld.lib.so init test/affinity"
create_boot_directory
install_config {
<config>
<parent-provides>
<service name="LOG"/>
<service name="CPU"/>
<service name="RM"/>
<service name="ROM"/>
<service name="PD"/>
</parent-provides>
<affinity-space width="2" />
<default-route>
<any-service> <parent/> </any-service>
</default-route>
<start name="init">
<resource name="RAM" quantum="10M"/>
<!-- assign the right half of the available CPUs -->
<affinity xpos="1" width="1" />
<config>
<parent-provides>
<service name="LOG"/>
<service name="CPU"/>
<service name="RM"/>
</parent-provides>
<default-route>
<any-service> <parent/> </any-service>
</default-route>
<!-- assign the leftmost half of CPUs to test-affinity -->
<affinity-space width="2" />
<start name="test-affinity">
<resource name="RAM" quantum="2M"/>
<affinity xpos="0" width="1" />
</start>
</config>
</start>
</config>
}
append qemu_args " -nographic -smp 8,cores=8 "
build_boot_image "core init test-affinity"
run_genode_until {.*Detected 2x1 CPUs.*} 60
puts "Test succeeded"

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@ -1,11 +1,12 @@
#
# \brief Test to start and call RPC entrypoint on all available CPUs
# \author Stefan Kalkowski
# \author Norman Feske
# \author Alexander Boettcher
#
build "core init test/mp_server"
build "core init test/smp"
create_boot_directory
@ -21,15 +22,17 @@ install_config {
<any-service> <parent/> </any-service>
</default-route>
<default caps="100"/>
<start name="test-server-mp">
<start name="test-smp">
<resource name="RAM" quantum="10M"/>
</start>
</config>
}
build_boot_image "core ld.lib.so init test-server-mp"
build_boot_image "core ld.lib.so init test-smp"
if {[have_include "power_on/qemu"]} {
if {[get_cmd_switch --autopilot]} { exit 0 }
# in general we want to have at least 2 CPUs
set want_cpus 2
@ -46,7 +49,7 @@ if {[have_include "power_on/qemu"]} {
}
# run the test
run_genode_until {\[init -\> test-server-mp\] done.*\n} 60
run_genode_until {\[init -\> test-smp\] --- SMP testsuite finished.*\n} 120
set cpus [regexp -inline {Detected [0-9x]+ CPU[s\.]} $output]
set cpus [regexp -all -inline {[0-9]+} $cpus]
@ -59,48 +62,49 @@ if {[have_include "power_on/qemu"]} {
}
}
# pay only attention to the output of init and its children
grep_output {^\[init }
# remove upgrade messages from init
unify_output {\[init \-\> test\-server\-mp\] upgrading quota donation for .* \([0-9]+ bytes\)} ""
trim_lines
set original_output $output
grep_output {\[init -\> test-smp\] RPC:}
unify_output {transfer cap [a-f0-9]+} "transfer cap UNIFIED"
unify_output {yes - idx [a-f0-9]+} "yes - idx UNIFIED"
unify_output {\- received cap [a-f0-9]+} "- received cap UNIFIED"
set good_string {
[init -> test-server-mp] --- test-mp_server started ---
[init -> test-server-mp] Detected }
append good_string "$cpus"
append good_string "x1 CPU"
if {$cpus > 1} { append good_string "s" }
append good_string ".\n"
set good_string {[init -> test-smp] RPC: --- test started ---
}
for {set r 0} {$r < $cpus} {incr r} {
append good_string {[init -> test-server-mp] call server on CPU }
append good_string {[init -> test-smp] RPC: call server on CPU }
append good_string "$r\n"
append good_string {[init -> test-server-mp] function test_untyped: got value }
append good_string {[init -> test-smp] RPC: function test_untyped: got value }
append good_string "$r\n"
}
for {set r 0} {$r < $cpus} {incr r} {
append good_string {[init -> test-server-mp] call server on CPU }
append good_string {[init -> test-smp] RPC: call server on CPU }
append good_string "$r - transfer cap UNIFIED\n"
append good_string {[init -> test-server-mp] function test_cap: capability is valid ? yes - idx UNIFIED}
append good_string {[init -> test-smp] RPC: function test_cap: capability is valid ? yes - idx UNIFIED}
append good_string "\n"
}
for {set r 0} {$r < $cpus} {incr r} {
append good_string {[init -> test-server-mp] call server on CPU }
append good_string {[init -> test-smp] RPC: call server on CPU }
append good_string "$r - transfer cap UNIFIED\n"
append good_string {[init -> test-server-mp] function test_cap_reply: capability is valid ? yes - idx UNIFIED}
append good_string {[init -> test-smp] RPC: function test_cap_reply: capability is valid ? yes - idx UNIFIED}
append good_string "\n"
append good_string {[init -> test-server-mp] got from server on CPU }
append good_string {[init -> test-smp] RPC: got from server on CPU }
append good_string "$r - received cap UNIFIED\n"
}
append good_string {[init -> test-server-mp] done}
compare_output_to $good_string
puts "RPC test: passed"
set output $original_output
grep_output {\[init -\> test-smp\] Affinity: Round}
set rounds "10"
set good_string {}
for {set r 0} {$r <= $rounds} {incr r} {
append good_string {[init -> test-smp] Affinity: Round }
append good_string [format "%02d" $r]
append good_string ":"
for {set i 0} {$i < $cpus} {incr i} {
append good_string " A"
}
append good_string "\n"
}
compare_output_to $good_string
puts "Affinity test: passed"

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@ -1,146 +0,0 @@
/*
* \brief Test for setting the CPU affinity of a thread
* \author Norman Feske
* \date 2013-03-21
*/
/*
* Copyright (C) 2013-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
/* Genode includes */
#include <base/log.h>
#include <base/thread.h>
#include <base/component.h>
#include <base/heap.h>
namespace Genode {
static inline void print(Output &out, Affinity::Location location)
{
print(out, location.xpos(), ",", location.ypos());
}
}
enum { STACK_SIZE = sizeof(long)*1024, COUNT_VALUE = 10 * 1024 * 1024 };
struct Spinning_thread : Genode::Thread
{
Genode::Affinity::Location const _location;
Genode::uint64_t volatile cnt;
Genode::Lock barrier;
void entry()
{
barrier.unlock();
Genode::log("thread started on CPU ", _location, " spinning...");
unsigned round = 0;
for (;;) {
cnt++;
/* show a life sign every now and then... */
if (cnt % COUNT_VALUE == 0) {
Genode::log("thread on CPU ", _location, " keeps counting - "
"round ", round++, "...");
}
}
}
Spinning_thread(Genode::Env &env, Location location)
:
Genode::Thread(env, Name("spinning_thread"), STACK_SIZE, location,
Weight(), env.cpu()),
_location(location), cnt(0ULL), barrier(Genode::Lock::LOCKED)
{
start();
}
};
struct Main
{
Genode::Env &env;
Genode::Heap heap { env.ram(), env.rm() };
Main(Genode::Env &env);
};
Main::Main(Genode::Env &env) : env(env)
{
using namespace Genode;
log("--- test-affinity started ---");
Affinity::Space cpus = env.cpu().affinity_space();
log("Detected ", cpus.width(), "x", cpus.height(), " "
"CPU", cpus.total() > 1 ? "s." : ".");
/* get some memory for the thread objects */
Spinning_thread ** threads = new (heap) Spinning_thread*[cpus.total()];
uint64_t * thread_cnt = new (heap) uint64_t[cpus.total()];
/* construct the thread objects */
for (unsigned i = 0; i < cpus.total(); i++)
threads[i] = new (heap)
Spinning_thread(env, cpus.location_of_index(i));
/* wait until all threads are up and running */
for (unsigned i = 0; i < cpus.total(); i++)
threads[i]->barrier.lock();
log("Threads started on a different CPU each.");
log("You may inspect them using the kernel debugger - if you have one.");
log("Main thread monitors client threads and prints the status of them.");
log("Legend : D - DEAD, A - ALIVE");
volatile uint64_t cnt = 0;
unsigned round = 0;
char const text_cpu[] = " CPU: ";
char const text_round[] = "Round %2u: ";
char * output_buffer = new (heap) char [sizeof(text_cpu) + 3 * cpus.total()];
for (;;) {
cnt++;
/* try to get a life sign by the main thread from the remote threads */
if (cnt % COUNT_VALUE == 0) {
char * output = output_buffer;
snprintf(output, sizeof(text_cpu), text_cpu);
output += sizeof(text_cpu) - 1;
for (unsigned i = 0; i < cpus.total(); i++) {
snprintf(output, 4, "%2u ", i);
output += 3;
}
log(Cstring(output_buffer));
output = output_buffer;
snprintf(output, sizeof(text_round), text_round, round);
output += sizeof(text_round) - 2;
for (unsigned i = 0; i < cpus.total(); i++) {
snprintf(output, 4, "%s ",
thread_cnt[i] == threads[i]->cnt ? " D" : " A");
output += 3;
thread_cnt[i] = threads[i]->cnt;
}
log(Cstring(output_buffer));
round ++;
}
}
}
void Component::construct(Genode::Env &env) { static Main inst(env); }

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@ -1,136 +0,0 @@
/*
* \brief Multiprocessor test for a server having multiple Rpc_entrypoints on
* different CPUs
* \author Alexander Boettcher
* \date 2013-07-19
*/
/*
* Copyright (C) 2013-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
/* Genode includes */
#include <base/component.h>
#include <base/heap.h>
#include <base/log.h>
#include <base/rpc_server.h>
#include <base/rpc_client.h>
namespace Test {
/**
* Test session interface definition
*/
struct Session : Genode::Session
{
static const char *service_name() { return "MP_RPC_TEST"; }
enum { CAP_QUOTA = 2 };
GENODE_RPC(Rpc_test_untyped, void, test_untyped, unsigned);
GENODE_RPC(Rpc_test_cap, void, test_cap, Genode::Native_capability);
GENODE_RPC(Rpc_test_cap_reply, Genode::Native_capability,
test_cap_reply, Genode::Native_capability);
GENODE_RPC_INTERFACE(Rpc_test_untyped, Rpc_test_cap, Rpc_test_cap_reply);
};
struct Client : Genode::Rpc_client<Session>
{
Client(Genode::Capability<Session> cap) : Rpc_client<Session>(cap) { }
void test_untyped(unsigned value) { call<Rpc_test_untyped>(value); }
void test_cap(Genode::Native_capability cap) { call<Rpc_test_cap>(cap); }
Genode::Native_capability test_cap_reply(Genode::Native_capability cap) {
return call<Rpc_test_cap_reply>(cap); }
};
struct Component : Genode::Rpc_object<Session, Component>
{
/* Test to just sent plain words (untyped items) */
void test_untyped(unsigned);
/* Test to transfer a object capability during send */
void test_cap(Genode::Native_capability);
/* Test to transfer a object capability during send+reply */
Genode::Native_capability test_cap_reply(Genode::Native_capability);
};
typedef Genode::Capability<Session> Capability;
/**
* Session implementation
*/
void Component::test_untyped(unsigned value) {
Genode::log("function ", __FUNCTION__, ": got value ", value);
}
void Component::test_cap(Genode::Native_capability cap) {
Genode::log("function ", __FUNCTION__, ": capability is valid ? ",
cap.valid() ? "yes" : "no", " - idx ", cap.local_name());
}
Genode::Native_capability Component::test_cap_reply(Genode::Native_capability cap) {
Genode::log("function ", __FUNCTION__, ": capability is valid ? ",
cap.valid() ? "yes" : "no", " - idx ", cap.local_name());
return cap;
}
}
/**
* Set up a server running on every CPU one Rpc_entrypoint
*/
void Component::construct(Genode::Env & env)
{
using namespace Genode;
Heap heap(env.ram(), env.rm());
log("--- test-mp_server started ---");
Affinity::Space cpus = env.cpu().affinity_space();
log("Detected ", cpus.width(), "x", cpus.height(), " CPU",
cpus.total() > 1 ? "s." : ".");
enum { STACK_SIZE = 2*1024*sizeof(long) };
Rpc_entrypoint ** eps = new (heap) Rpc_entrypoint*[cpus.total()];
for (unsigned i = 0; i < cpus.total(); i++)
eps[i] = new (heap) Rpc_entrypoint(&env.pd(), STACK_SIZE, "rpc en",
true, cpus.location_of_index(i));
/* XXX using the same object and putting it to different queues fails XXX */
Test::Component * components = new (heap) Test::Component[cpus.total()];
Test::Capability * caps = new (heap) Test::Capability[cpus.total()];
for (unsigned i = 0; i < cpus.total(); i++)
caps[i] = eps[i]->manage(&components[i]);
Test::Client ** clients = new (heap) Test::Client*[cpus.total()];
for (unsigned i = 0; i < cpus.total(); i++)
clients[i] = new (heap) Test::Client(caps[i]);
/* Test: Invoke RPC entrypoint on different CPUs */
for (unsigned i = 0; i < cpus.total(); i++) {
log("call server on CPU ", i);
clients[i]->test_untyped(i);
}
/* Test: Transfer a capability to RPC Entrypoints on different CPUs */
for (unsigned i = 0; i < cpus.total(); i++) {
Native_capability cap = caps[0];
log("call server on CPU ", i, " - transfer cap ", cap.local_name());
clients[i]->test_cap(cap);
}
/* Test: Transfer a capability to RPC Entrypoints and back */
for (unsigned i = 0; i < cpus.total(); i++) {
Native_capability cap = caps[0];
log("call server on CPU ", i, " - transfer cap ", cap.local_name());
Native_capability rcap = clients[i]->test_cap_reply(cap);
log("got from server on CPU ", i, " - received cap ", rcap.local_name());
}
log("done");
}

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@ -1,3 +0,0 @@
TARGET = test-server-mp
SRC_CC = main.cc
LIBS = base

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@ -0,0 +1,262 @@
/*
* \brief Multiprocessor testsuite
* \author Alexander Boettcher
* \author Stefan Kalkowski
* \date 2013-07-19
*/
/*
* Copyright (C) 2013-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
/* Genode includes */
#include <base/component.h>
#include <base/heap.h>
#include <base/log.h>
#include <base/rpc_server.h>
#include <base/rpc_client.h>
namespace Genode {
static inline void print(Output &out, Affinity::Location location)
{
print(out, location.xpos(), ",", location.ypos());
}
}
/**
* Set up a server running on every CPU one Rpc_entrypoint
*/
namespace Mp_server_test {
/**
* Test session interface definition
*/
struct Session : Genode::Session
{
static const char *service_name() { return "MP_RPC_TEST"; }
enum { CAP_QUOTA = 2 };
GENODE_RPC(Rpc_test_untyped, void, test_untyped, unsigned);
GENODE_RPC(Rpc_test_cap, void, test_cap, Genode::Native_capability);
GENODE_RPC(Rpc_test_cap_reply, Genode::Native_capability,
test_cap_reply, Genode::Native_capability);
GENODE_RPC_INTERFACE(Rpc_test_untyped, Rpc_test_cap, Rpc_test_cap_reply);
};
struct Client : Genode::Rpc_client<Session>
{
Client(Genode::Capability<Session> cap) : Rpc_client<Session>(cap) { }
void test_untyped(unsigned value) { call<Rpc_test_untyped>(value); }
void test_cap(Genode::Native_capability cap) { call<Rpc_test_cap>(cap); }
Genode::Native_capability test_cap_reply(Genode::Native_capability cap) {
return call<Rpc_test_cap_reply>(cap); }
};
struct Component : Genode::Rpc_object<Session, Component>
{
/* Test to just sent plain words (untyped items) */
void test_untyped(unsigned);
/* Test to transfer a object capability during send */
void test_cap(Genode::Native_capability);
/* Test to transfer a object capability during send+reply */
Genode::Native_capability test_cap_reply(Genode::Native_capability);
};
typedef Genode::Capability<Session> Capability;
struct Cpu_compound
{
enum { STACK_SIZE = 2*1024*sizeof(long) };
Genode::Rpc_entrypoint rpc;
Component comp { };
Capability cap { rpc.manage(&comp) };
Client cli { cap };
Cpu_compound(Genode::Affinity::Location l, Genode::Env &env)
: rpc(&env.pd(), STACK_SIZE, "rpc en", true, l) {}
~Cpu_compound() { rpc.dissolve(&comp); }
};
/**
* Session implementation
*/
void Component::test_untyped(unsigned value) {
Genode::log("RPC: function ", __FUNCTION__, ": got value ", value);
}
void Component::test_cap(Genode::Native_capability cap) {
Genode::log("RPC: function ", __FUNCTION__, ": capability is valid ? ",
cap.valid() ? "yes" : "no", " - idx ", cap.local_name());
}
Genode::Native_capability Component::test_cap_reply(Genode::Native_capability cap) {
Genode::log("RPC: function ", __FUNCTION__, ": capability is valid ? ",
cap.valid() ? "yes" : "no", " - idx ", cap.local_name());
return cap;
}
static void execute(Genode::Env & env, Genode::Heap & heap,
Genode::Affinity::Space & cpus)
{
using namespace Genode;
log("RPC: --- test started ---");
Cpu_compound ** compounds = new (heap) Cpu_compound*[cpus.total()];
for (unsigned i = 0; i < cpus.total(); i++)
compounds[i] = new (heap) Cpu_compound(cpus.location_of_index(i), env);
/* Invoke RPC entrypoint on different CPUs */
for (unsigned i = 0; i < cpus.total(); i++) {
log("RPC: call server on CPU ", i);
compounds[i]->cli.test_untyped(i);
}
/* Transfer a capability to RPC Entrypoints on different CPUs */
for (unsigned i = 0; i < cpus.total(); i++) {
Native_capability cap = compounds[0]->cap;
log("RPC: call server on CPU ", i, " - transfer cap ", cap.local_name());
compounds[i]->cli.test_cap(cap);
}
/* Transfer a capability to RPC Entrypoints and back */
for (unsigned i = 0; i < cpus.total(); i++) {
Native_capability cap = compounds[0]->cap;
log("RPC: call server on CPU ", i, " - transfer cap ", cap.local_name());
Native_capability rcap = compounds[i]->cli.test_cap_reply(cap);
log("RPC: got from server on CPU ", i, " - received cap ", rcap.local_name());
}
/* clean up */
for (unsigned i = 0; i < cpus.total(); i++)
destroy(heap, compounds[i]);
destroy(heap, compounds);
log("RPC: --- test finished ---");
}
}
namespace Affinity_test {
enum {
STACK_SIZE = sizeof(long)*2048,
COUNT_VALUE = 10 * 1024 * 1024
};
struct Spinning_thread : Genode::Thread
{
Genode::Affinity::Location const location;
Genode::uint64_t volatile cnt;
Genode::Lock barrier;
void entry()
{
barrier.unlock();
Genode::log("Affinity: thread started on CPU ",
location, " spinning...");
for (;;) cnt++;
}
Spinning_thread(Genode::Env &env, Location location)
: Genode::Thread(env, Name("spinning_thread"), STACK_SIZE, location,
Weight(), env.cpu()),
location(location), cnt(0ULL), barrier(Genode::Lock::LOCKED) {
start(); }
};
void execute(Genode::Env &env, Genode::Heap & heap,
Genode::Affinity::Space & cpus)
{
using namespace Genode;
log("Affinity: --- test started ---");
/* get some memory for the thread objects */
Spinning_thread ** threads = new (heap) Spinning_thread*[cpus.total()];
uint64_t * thread_cnt = new (heap) uint64_t[cpus.total()];
/* construct the thread objects */
for (unsigned i = 0; i < cpus.total(); i++)
threads[i] = new (heap)
Spinning_thread(env, cpus.location_of_index(i));
/* wait until all threads are up and running */
for (unsigned i = 0; i < cpus.total(); i++)
threads[i]->barrier.lock();
log("Affinity: Threads started on a different CPU each.");
log("Affinity: You may inspect them using the kernel debugger - if you have one.");
log("Affinity: Main thread monitors client threads and prints the status of them.");
log("Affinity: Legend : D - DEAD, A - ALIVE");
volatile uint64_t cnt = 0;
unsigned round = 0;
char const text_cpu[] = "Affinity: CPU: ";
char const text_round[] = "Affinity: Round %2u: ";
char * output_buffer = new (heap) char [sizeof(text_cpu) + 3 * cpus.total()];
for (; round < 11;) {
cnt++;
/* try to get a life sign by the main thread from the remote threads */
if (cnt % COUNT_VALUE == 0) {
char * output = output_buffer;
snprintf(output, sizeof(text_cpu), text_cpu);
output += sizeof(text_cpu) - 1;
for (unsigned i = 0; i < cpus.total(); i++) {
snprintf(output, 4, "%2u ", i);
output += 3;
}
log(Cstring(output_buffer));
output = output_buffer;
snprintf(output, sizeof(text_round), text_round, round);
output += sizeof(text_round) - 2;
for (unsigned i = 0; i < cpus.total(); i++) {
snprintf(output, 4, "%s ",
thread_cnt[i] == threads[i]->cnt ? " D" : " A");
output += 3;
thread_cnt[i] = threads[i]->cnt;
}
log(Cstring(output_buffer));
round ++;
}
}
for (unsigned i = 0; i < cpus.total(); i++)
destroy(heap, threads[i]);
destroy(heap, threads);
destroy(heap, thread_cnt);
log("Affinity: --- test finished ---");
}
}
void Component::construct(Genode::Env & env)
{
using namespace Genode;
log("--- SMP testsuite started ---");
Affinity::Space cpus = env.cpu().affinity_space();
log("Detected ", cpus.width(), "x", cpus.height(), " CPU",
cpus.total() > 1 ? "s." : ".");
Heap heap(env.ram(), env.rm());
Mp_server_test::execute(env, heap, cpus);
Affinity_test::execute(env, heap, cpus);
log("--- SMP testsuite finished ---");
}

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@ -1,3 +1,3 @@
TARGET = test-affinity
TARGET = test-smp
SRC_CC = main.cc
LIBS = base

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@ -1,82 +0,0 @@
assert_spec foc
assert_spec arndale
#
# Build
#
# generic components
set build_components {
core
init
drivers/platform
drivers/timer
test/affinity
test/cpufreq
}
build $build_components
create_boot_directory
#
# Config
#
set config {
<config>
<parent-provides>
<service name="ROM"/>
<service name="IRQ"/>
<service name="IO_MEM"/>
<service name="PD"/>
<service name="RM"/>
<service name="CPU"/>
<service name="LOG"/>
</parent-provides>
<default-route>
<any-service> <any-child/> <parent/> </any-service>
</default-route>
<start name="platform_drv">
<resource name="RAM" quantum="1M"/>
<provides><service name="Regulator"/></provides>
</start>
<start name="timer">
<resource name="RAM" quantum="1M"/>
<provides><service name="Timer"/></provides>
</start>
<start name="test-affinity">
<resource name="RAM" quantum="10M"/>
</start>
<start name="test-cpufreq">
<resource name="RAM" quantum="10M"/>
</start>
</config>
}
install_config $config
#
# Boot modules
#
# generic modules
set boot_modules {
core ld.lib.so init
platform_drv
timer
test-affinity
test-cpufreq
}
build_boot_image $boot_modules
run_genode_until {.*Round 04: A A.*\n.*Setting CPU frequency low.*\n.*Setting CPU frequency high.*\n.*Round 05: A A} 60
grep_output {^\[init -> test-cpufreq\] }
compare_output_to {
[init -> test-cpufreq] Setting CPU frequency low
[init -> test-cpufreq] Setting CPU frequency high
}

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@ -66,7 +66,7 @@ proc precise_ref_time { } {
return true
}
build "core init drivers/platform drivers/timer test/timeout test/cpufreq"
build "core init drivers/platform drivers/timer test/timeout"
#
# Boot image

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@ -1,49 +0,0 @@
/*
* \brief Test for changing the CPU frequency
* \author Stefan Kalkowski
* \author Martin Stein
* \date 2013-06-14
*/
/*
* Copyright (C) 2013-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
/* Genode includes */
#include <base/component.h>
#include <regulator/consts.h>
#include <regulator_session/connection.h>
#include <timer_session/connection.h>
using namespace Genode;
struct Main
{
enum { PERIOD_US = 8 * 1000 * 1000 };
Env &env;
Timer::Connection timer { env };
Regulator::Connection cpu_regulator { env, Regulator::CLK_CPU };
Signal_handler<Main> timer_handler { env.ep(), *this, &Main::handle_timer };
bool high { true };
void handle_timer()
{
log("Setting CPU frequency ", high ? "low" : "high");
cpu_regulator.level(high ? Regulator::CPU_FREQ_200 :
Regulator::CPU_FREQ_1600);
high = !high;
timer.trigger_once(PERIOD_US);
}
Main(Env &env) : env(env)
{
timer.sigh(timer_handler);
timer.trigger_once(PERIOD_US);
}
};
void Component::construct(Env &env) { static Main main(env); }

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@ -1,4 +0,0 @@
TARGET = test-cpufreq
REQUIRES = arndale
SRC_CC = main.cc
LIBS = base

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@ -1,4 +1,3 @@
affinity
bomb
cpu_quota
cpu_sampler
@ -22,7 +21,6 @@ lx_hybrid_ctors
lx_hybrid_exception
lx_hybrid_pthread_ipc
moon
mp_server
netperf_lwip
netperf_lwip_bridge
netperf_lwip_router
@ -48,6 +46,7 @@ rump_ext2
sd_card_bench
seoul-auto
smartcard
smp
solo5
sub_rm
tar_rom