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-rw-r--r--tests/qtest/libqos/libqtest.h37
-rw-r--r--tests/qtest/libqtest.c82
-rw-r--r--tests/qtest/meson.build1
-rw-r--r--tests/qtest/sse-timer-test.c240
4 files changed, 334 insertions, 26 deletions
diff --git a/tests/qtest/libqos/libqtest.h b/tests/qtest/libqos/libqtest.h
index 724f65aa94..a68dcd79d4 100644
--- a/tests/qtest/libqos/libqtest.h
+++ b/tests/qtest/libqos/libqtest.h
@@ -75,6 +75,17 @@ QTestState *qtest_init_without_qmp_handshake(const char *extra_args);
QTestState *qtest_init_with_serial(const char *extra_args, int *sock_fd);
/**
+ * qtest_kill_qemu:
+ * @s: #QTestState instance to operate on.
+ *
+ * Kill the QEMU process and wait for it to terminate. It is safe to call this
+ * function multiple times. Normally qtest_quit() is used instead because it
+ * also frees QTestState. Use qtest_kill_qemu() when you just want to kill QEMU
+ * and qtest_quit() will be called later.
+ */
+void qtest_kill_qemu(QTestState *s);
+
+/**
* qtest_quit:
* @s: #QTestState instance to operate on.
*
@@ -133,6 +144,14 @@ void qtest_qmp_send_raw(QTestState *s, const char *fmt, ...)
GCC_FMT_ATTR(2, 3);
/**
+ * qtest_socket_server:
+ * @socket_path: the UNIX domain socket path
+ *
+ * Create and return a listen socket file descriptor, or abort on failure.
+ */
+int qtest_socket_server(const char *socket_path);
+
+/**
* qtest_vqmp_fds:
* @s: #QTestState instance to operate on.
* @fds: array of file descriptors
@@ -630,9 +649,27 @@ void qtest_add_data_func_full(const char *str, void *data,
g_free(path); \
} while (0)
+/**
+ * qtest_add_abrt_handler:
+ * @fn: Handler function
+ * @data: Argument that is passed to the handler
+ *
+ * Add a handler function that is invoked on SIGABRT. This can be used to
+ * terminate processes and perform other cleanup. The handler can be removed
+ * with qtest_remove_abrt_handler().
+ */
void qtest_add_abrt_handler(GHookFunc fn, const void *data);
/**
+ * qtest_remove_abrt_handler:
+ * @data: Argument previously passed to qtest_add_abrt_handler()
+ *
+ * Remove an abrt handler that was previously added with
+ * qtest_add_abrt_handler().
+ */
+void qtest_remove_abrt_handler(void *data);
+
+/**
* qtest_qmp_assert_success:
* @qts: QTestState instance to operate on
* @fmt: QMP message to send to qemu, formatted like
diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index fd043b0570..71e359efcd 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -81,24 +81,8 @@ static void qtest_client_set_rx_handler(QTestState *s, QTestRecvFn recv);
static int init_socket(const char *socket_path)
{
- struct sockaddr_un addr;
- int sock;
- int ret;
-
- sock = socket(PF_UNIX, SOCK_STREAM, 0);
- g_assert_cmpint(sock, !=, -1);
-
- addr.sun_family = AF_UNIX;
- snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", socket_path);
+ int sock = qtest_socket_server(socket_path);
qemu_set_cloexec(sock);
-
- do {
- ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
- } while (ret == -1 && errno == EINTR);
- g_assert_cmpint(ret, !=, -1);
- ret = listen(sock, 1);
- g_assert_cmpint(ret, !=, -1);
-
return sock;
}
@@ -149,7 +133,7 @@ void qtest_set_expected_status(QTestState *s, int status)
s->expected_status = status;
}
-static void kill_qemu(QTestState *s)
+void qtest_kill_qemu(QTestState *s)
{
pid_t pid = s->qemu_pid;
int wstatus;
@@ -159,6 +143,7 @@ static void kill_qemu(QTestState *s)
kill(pid, SIGTERM);
TFR(pid = waitpid(s->qemu_pid, &s->wstatus, 0));
assert(pid == s->qemu_pid);
+ s->qemu_pid = -1;
}
/*
@@ -185,7 +170,7 @@ static void kill_qemu(QTestState *s)
static void kill_qemu_hook_func(void *s)
{
- kill_qemu(s);
+ qtest_kill_qemu(s);
}
static void sigabrt_handler(int signo)
@@ -211,15 +196,30 @@ static void cleanup_sigabrt_handler(void)
sigaction(SIGABRT, &sigact_old, NULL);
}
+static bool hook_list_is_empty(GHookList *hook_list)
+{
+ GHook *hook = g_hook_first_valid(hook_list, TRUE);
+
+ if (!hook) {
+ return false;
+ }
+
+ g_hook_unref(hook_list, hook);
+ return true;
+}
+
void qtest_add_abrt_handler(GHookFunc fn, const void *data)
{
GHook *hook;
- /* Only install SIGABRT handler once */
if (!abrt_hooks.is_setup) {
g_hook_list_init(&abrt_hooks, sizeof(GHook));
}
- setup_sigabrt_handler();
+
+ /* Only install SIGABRT handler once */
+ if (hook_list_is_empty(&abrt_hooks)) {
+ setup_sigabrt_handler();
+ }
hook = g_hook_alloc(&abrt_hooks);
hook->func = fn;
@@ -228,6 +228,17 @@ void qtest_add_abrt_handler(GHookFunc fn, const void *data)
g_hook_prepend(&abrt_hooks, hook);
}
+void qtest_remove_abrt_handler(void *data)
+{
+ GHook *hook = g_hook_find_data(&abrt_hooks, TRUE, data);
+ g_hook_destroy_link(&abrt_hooks, hook);
+
+ /* Uninstall SIGABRT handler on last instance */
+ if (hook_list_is_empty(&abrt_hooks)) {
+ cleanup_sigabrt_handler();
+ }
+}
+
static const char *qtest_qemu_binary(void)
{
const char *qemu_bin;
@@ -384,12 +395,9 @@ QTestState *qtest_init_with_serial(const char *extra_args, int *sock_fd)
void qtest_quit(QTestState *s)
{
- g_hook_destroy_link(&abrt_hooks, g_hook_find_data(&abrt_hooks, TRUE, s));
-
- /* Uninstall SIGABRT handler on last instance */
- cleanup_sigabrt_handler();
+ qtest_remove_abrt_handler(s);
- kill_qemu(s);
+ qtest_kill_qemu(s);
close(s->fd);
close(s->qmp_fd);
g_string_free(s->rx, true);
@@ -638,6 +646,28 @@ QDict *qtest_qmp_receive_dict(QTestState *s)
return qmp_fd_receive(s->qmp_fd);
}
+int qtest_socket_server(const char *socket_path)
+{
+ struct sockaddr_un addr;
+ int sock;
+ int ret;
+
+ sock = socket(PF_UNIX, SOCK_STREAM, 0);
+ g_assert_cmpint(sock, !=, -1);
+
+ addr.sun_family = AF_UNIX;
+ snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", socket_path);
+
+ do {
+ ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
+ } while (ret == -1 && errno == EINTR);
+ g_assert_cmpint(ret, !=, -1);
+ ret = listen(sock, 1);
+ g_assert_cmpint(ret, !=, -1);
+
+ return sock;
+}
+
/**
* Allow users to send a message without waiting for the reply,
* in the case that they choose to discard all replies up until
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 58efc46144..2688e1bfad 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -157,6 +157,7 @@ qtests_npcm7xx = \
'npcm7xx_watchdog_timer-test'] + \
(slirp.found() ? ['npcm7xx_emc-test'] : [])
qtests_arm = \
+ (config_all_devices.has_key('CONFIG_MPS2') ? ['sse-timer-test'] : []) + \
(config_all_devices.has_key('CONFIG_CMSDK_APB_DUALTIMER') ? ['cmsdk-apb-dualtimer-test'] : []) + \
(config_all_devices.has_key('CONFIG_CMSDK_APB_TIMER') ? ['cmsdk-apb-timer-test'] : []) + \
(config_all_devices.has_key('CONFIG_CMSDK_APB_WATCHDOG') ? ['cmsdk-apb-watchdog-test'] : []) + \
diff --git a/tests/qtest/sse-timer-test.c b/tests/qtest/sse-timer-test.c
new file mode 100644
index 0000000000..a65d7542d5
--- /dev/null
+++ b/tests/qtest/sse-timer-test.c
@@ -0,0 +1,240 @@
+/*
+ * QTest testcase for the SSE timer device
+ *
+ * Copyright (c) 2021 Linaro Limited
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest-single.h"
+
+/*
+ * SSE-123/SSE-300 timer in the mps3-an547 board, where it is driven
+ * at 32MHz, so 31.25ns per tick.
+ */
+#define TIMER_BASE 0x48000000
+
+/* PERIPHNSPPC0 register in the SSE-300 Secure Access Configuration block */
+#define PERIPHNSPPC0 (0x50080000 + 0x70)
+
+/* Base of the System Counter control frame */
+#define COUNTER_BASE 0x58100000
+
+/* SSE counter register offsets in the control frame */
+#define CNTCR 0
+#define CNTSR 0x4
+#define CNTCV_LO 0x8
+#define CNTCV_HI 0xc
+#define CNTSCR 0x10
+
+/* SSE timer register offsets */
+#define CNTPCT_LO 0
+#define CNTPCT_HI 4
+#define CNTFRQ 0x10
+#define CNTP_CVAL_LO 0x20
+#define CNTP_CVAL_HI 0x24
+#define CNTP_TVAL 0x28
+#define CNTP_CTL 0x2c
+#define CNTP_AIVAL_LO 0x40
+#define CNTP_AIVAL_HI 0x44
+#define CNTP_AIVAL_RELOAD 0x48
+#define CNTP_AIVAL_CTL 0x4c
+
+/* 4 ticks in nanoseconds (so we can work in integers) */
+#define FOUR_TICKS 125
+
+static void clock_step_ticks(uint64_t ticks)
+{
+ /*
+ * Advance the qtest clock by however many nanoseconds we
+ * need to move the timer forward the specified number of ticks.
+ * ticks must be a multiple of 4, so we get a whole number of ns.
+ */
+ assert(!(ticks & 3));
+ clock_step(FOUR_TICKS * (ticks >> 2));
+}
+
+static void reset_counter_and_timer(void)
+{
+ /*
+ * Reset the system counter and the timer between tests. This
+ * isn't a full reset, but it's sufficient for what the tests check.
+ */
+ writel(COUNTER_BASE + CNTCR, 0);
+ writel(TIMER_BASE + CNTP_CTL, 0);
+ writel(TIMER_BASE + CNTP_AIVAL_CTL, 0);
+ writel(COUNTER_BASE + CNTCV_LO, 0);
+ writel(COUNTER_BASE + CNTCV_HI, 0);
+}
+
+static void test_counter(void)
+{
+ /* Basic counter functionality test */
+
+ reset_counter_and_timer();
+ /* The counter should start disabled: check that it doesn't move */
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(COUNTER_BASE + CNTCV_LO), ==, 0);
+ g_assert_cmpuint(readl(COUNTER_BASE + CNTCV_HI), ==, 0);
+ /* Now enable it and check that it does count */
+ writel(COUNTER_BASE + CNTCR, 1);
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(COUNTER_BASE + CNTCV_LO), ==, 100);
+ g_assert_cmpuint(readl(COUNTER_BASE + CNTCV_HI), ==, 0);
+ /* Check the counter scaling functionality */
+ writel(COUNTER_BASE + CNTCR, 0);
+ writel(COUNTER_BASE + CNTSCR, 0x00100000); /* 1/16th normal speed */
+ writel(COUNTER_BASE + CNTCR, 5); /* EN, SCEN */
+ clock_step_ticks(160);
+ g_assert_cmpuint(readl(COUNTER_BASE + CNTCV_LO), ==, 110);
+ g_assert_cmpuint(readl(COUNTER_BASE + CNTCV_HI), ==, 0);
+}
+
+static void test_timer(void)
+{
+ /* Basic timer functionality test */
+
+ reset_counter_and_timer();
+ /*
+ * The timer is behind a Peripheral Protection Controller, and
+ * qtest accesses are always non-secure (no memory attributes),
+ * so we must program the PPC to accept NS transactions. TIMER0
+ * is on port 0 of PPC0, controlled by bit 0 of this register.
+ */
+ writel(PERIPHNSPPC0, 1);
+ /* We must enable the System Counter or the timer won't run. */
+ writel(COUNTER_BASE + CNTCR, 1);
+
+ /* Timer starts disabled and with a counter of 0 */
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 0);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTPCT_LO), ==, 0);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTPCT_HI), ==, 0);
+
+ /* Turn it on */
+ writel(TIMER_BASE + CNTP_CTL, 1);
+
+ /* Is the timer ticking? */
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTPCT_LO), ==, 100);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTPCT_HI), ==, 0);
+
+ /* Set the CompareValue to 4000 ticks */
+ writel(TIMER_BASE + CNTP_CVAL_LO, 4000);
+ writel(TIMER_BASE + CNTP_CVAL_HI, 0);
+
+ /* Check TVAL view of the counter */
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_TVAL), ==, 3900);
+
+ /* Advance to the CompareValue mark and check ISTATUS is set */
+ clock_step_ticks(3900);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_TVAL), ==, 0);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 5);
+
+ /* Now exercise the auto-reload part of the timer */
+ writel(TIMER_BASE + CNTP_AIVAL_RELOAD, 200);
+ writel(TIMER_BASE + CNTP_AIVAL_CTL, 1);
+
+ /* Check AIVAL was reloaded and that ISTATUS is now clear */
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_LO), ==, 4200);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_HI), ==, 0);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 1);
+
+ /*
+ * Check that when we advance forward to the reload time the interrupt
+ * fires and the value reloads
+ */
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 1);
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 5);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_LO), ==, 4400);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_HI), ==, 0);
+
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 5);
+ /* Check that writing 0 to CLR clears the interrupt */
+ writel(TIMER_BASE + CNTP_AIVAL_CTL, 1);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 1);
+ /* Check that when we move forward to the reload time it fires again */
+ clock_step_ticks(100);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 5);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_LO), ==, 4600);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_HI), ==, 0);
+
+ /*
+ * Step the clock far enough that we overflow the low half of the
+ * CNTPCT and AIVAL registers, and check that their high halves
+ * give the right values. We do the forward movement in
+ * non-autoinc mode because otherwise it takes forever as the
+ * timer has to emulate all the 'reload at t + N, t + 2N, etc'
+ * steps.
+ */
+ writel(TIMER_BASE + CNTP_AIVAL_CTL, 0);
+ clock_step_ticks(0x42ULL << 32);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTPCT_LO), ==, 4400);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTPCT_HI), ==, 0x42);
+
+ /* Turn on the autoinc again to check AIVAL_HI */
+ writel(TIMER_BASE + CNTP_AIVAL_CTL, 1);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_LO), ==, 4600);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_AIVAL_HI), ==, 0x42);
+}
+
+static void test_timer_scale_change(void)
+{
+ /*
+ * Test that the timer responds correctly to counter
+ * scaling changes while it has an active timer.
+ */
+ reset_counter_and_timer();
+ /* Give ourselves access to the timer, and enable the counter and timer */
+ writel(PERIPHNSPPC0, 1);
+ writel(COUNTER_BASE + CNTCR, 1);
+ writel(TIMER_BASE + CNTP_CTL, 1);
+ /* Set the CompareValue to 4000 ticks */
+ writel(TIMER_BASE + CNTP_CVAL_LO, 4000);
+ writel(TIMER_BASE + CNTP_CVAL_HI, 0);
+ /* Advance halfway and check ISTATUS is not set */
+ clock_step_ticks(2000);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 1);
+ /* Reprogram the counter to run at 1/16th speed */
+ writel(COUNTER_BASE + CNTCR, 0);
+ writel(COUNTER_BASE + CNTSCR, 0x00100000); /* 1/16th normal speed */
+ writel(COUNTER_BASE + CNTCR, 5); /* EN, SCEN */
+ /* Advance to where the timer would have fired and check it has not */
+ clock_step_ticks(2000);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 1);
+ /* Advance to where the timer must fire at the new clock rate */
+ clock_step_ticks(29996);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 1);
+ clock_step_ticks(4);
+ g_assert_cmpuint(readl(TIMER_BASE + CNTP_CTL), ==, 5);
+}
+
+int main(int argc, char **argv)
+{
+ int r;
+
+ g_test_init(&argc, &argv, NULL);
+
+ qtest_start("-machine mps3-an547");
+
+ qtest_add_func("/sse-timer/counter", test_counter);
+ qtest_add_func("/sse-timer/timer", test_timer);
+ qtest_add_func("/sse-timer/timer-scale-change", test_timer_scale_change);
+
+ r = g_test_run();
+
+ qtest_end();
+
+ return r;
+}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-29 06:10:20 +0200