diff mbox series

[24/25] systems/qtest: add device clock APIs

Message ID 20240918192254.3136903-25-tavip@google.com (mailing list archive)
State New, archived
Headers show
Series NXP i.MX RT595 | expand

Commit Message

Octavian Purdila Sept. 18, 2024, 7:22 p.m. UTC
Add qtest APIs to check the device clock frequency.

Signed-off-by: Octavian Purdila <tavip@google.com>
---
 include/hw/qdev-clock.h       | 10 +++++++
 tests/qtest/libqtest-single.h | 24 +++++++++++++++++
 tests/qtest/libqtest.h        | 22 +++++++++++++++
 hw/core/qdev-clock.c          |  2 +-
 system/qtest.c                | 51 +++++++++++++++++++++++++++++++++++
 tests/qtest/libqtest.c        | 29 ++++++++++++++++++++
 6 files changed, 137 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/hw/qdev-clock.h b/include/hw/qdev-clock.h
index ffa0f7ba09..19ed34ae88 100644
--- a/include/hw/qdev-clock.h
+++ b/include/hw/qdev-clock.h
@@ -15,6 +15,7 @@ 
 #define QDEV_CLOCK_H
 
 #include "hw/clock.h"
+#include "hw/qdev-core.h"
 
 /**
  * qdev_init_clock_in:
@@ -161,4 +162,13 @@  typedef struct ClockPortInitElem ClockPortInitArray[];
  */
 void qdev_init_clocks(DeviceState *dev, const ClockPortInitArray clocks);
 
+/**
+ * qdev_get_clocklist:
+ * @dev: the device to find clock for
+ * @name: clock name
+ *
+ * Returns: a named clock list entry or NULL if the clock was not found
+ */
+NamedClockList *qdev_get_clocklist(DeviceState *dev, const char *name);
+
 #endif /* QDEV_CLOCK_H */
diff --git a/tests/qtest/libqtest-single.h b/tests/qtest/libqtest-single.h
index c22037c8b2..51eb69ff74 100644
--- a/tests/qtest/libqtest-single.h
+++ b/tests/qtest/libqtest-single.h
@@ -408,4 +408,28 @@  static inline int64_t clock_step(int64_t step)
     return qtest_clock_step(global_qtest, step);
 }
 
+/**
+ * qtest_qdev_clock_in_get_hz:
+ * @path: QOM path of a device.
+ * @name: Clock name.
+ *
+ * Returns: device clock frequency in HZ
+ */
+static inline uint64_t dev_clock_in_get_hz(const char *path, const char *name)
+{
+    return qtest_dev_clock_in_get_hz(global_qtest, path, name);
+}
+
+/**
+ * qtest_qdev_clock_out_get_hz:
+ * @path: QOM path of a device.
+ * @name: Clock name.
+ *
+ * Returns: device clock frequency in HZ
+ */
+static inline uint64_t dev_clock_out_get_hz(const char *path, const char *name)
+{
+    return qtest_dev_clock_out_get_hz(global_qtest, path, name);
+}
+
 #endif
diff --git a/tests/qtest/libqtest.h b/tests/qtest/libqtest.h
index f9bbeb2e60..cfb7098985 100644
--- a/tests/qtest/libqtest.h
+++ b/tests/qtest/libqtest.h
@@ -1169,4 +1169,26 @@  bool have_qemu_img(void);
  */
 bool mkimg(const char *file, const char *fmt, unsigned size_mb);
 
+/**
+ * qtest_qdev_clock_in_get_hz:
+ * @s: #QTestState instance to operate on.
+ * @path: QOM path of a device.
+ * @name: Clock name.
+ *
+ * Returns: device clock frequency in HZ
+ */
+uint64_t qtest_dev_clock_in_get_hz(QTestState *s, const char *path,
+                                   const char *name);
+
+/**
+ * qtest_qdev_clock_out_get_hz:
+ * @s: #QTestState instance to operate on.
+ * @path: QOM path of a device.
+ * @name: Clock name.
+ *
+ * Returns: device clock frequency in HZ
+ */
+uint64_t qtest_dev_clock_out_get_hz(QTestState *s, const char *path,
+                                    const char *name);
+
 #endif
diff --git a/hw/core/qdev-clock.c b/hw/core/qdev-clock.c
index 82799577f3..3c9e2d5d73 100644
--- a/hw/core/qdev-clock.c
+++ b/hw/core/qdev-clock.c
@@ -144,7 +144,7 @@  void qdev_init_clocks(DeviceState *dev, const ClockPortInitArray clocks)
     }
 }
 
-static NamedClockList *qdev_get_clocklist(DeviceState *dev, const char *name)
+NamedClockList *qdev_get_clocklist(DeviceState *dev, const char *name)
 {
     NamedClockList *ncl;
 
diff --git a/system/qtest.c b/system/qtest.c
index 95bb80a2bc..465666a416 100644
--- a/system/qtest.c
+++ b/system/qtest.c
@@ -19,6 +19,7 @@ 
 #include "exec/ioport.h"
 #include "exec/memory.h"
 #include "exec/tswap.h"
+#include "hw/qdev-clock.h"
 #include "hw/qdev-core.h"
 #include "hw/irq.h"
 #include "hw/core/cpu.h"
@@ -245,6 +246,20 @@  static void *qtest_server_send_opaque;
  *
  * Forcibly set the given interrupt pin to the given level.
  *
+ * Device clock frequency
+ * """"""""""""""""""""""
+ *
+ * .. code-block:: none
+ *
+ *  > qdev_clock_out_get_hz QOM-PATH CLOCK-NAME
+ *  < OK HZ
+ *
+ * .. code-block:: none
+ *
+ *  > qdev_clock_in_get_hz QOM-PATH CLOCK-NAME
+ *  < OK HZ
+ *
+ * where HZ is the clock frequency in hertz.
  */
 
 static int hex2nib(char ch)
@@ -758,6 +773,42 @@  static void qtest_process_command(CharBackend *chr, gchar **words)
         qtest_send_prefix(chr);
         qtest_sendf(chr, "OK %"PRIi64"\n",
                     (int64_t)qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
+    } else if (strcmp(words[0], "qdev_clock_in_get_hz") == 0 ||
+               strcmp(words[0], "qdev_clock_out_get_hz") == 0) {
+        bool is_outbound = words[0][11] == 'o';
+        DeviceState *dev;
+        NamedClockList *ncl;
+
+        g_assert(words[1]);
+        g_assert(words[2]);
+
+        dev = DEVICE(object_resolve_path(words[1], NULL));
+        if (!dev) {
+            qtest_send_prefix(chr);
+            qtest_send(chr, "FAIL Unknown device\n");
+            return;
+        }
+
+        ncl = qdev_get_clocklist(dev, words[2]);
+        if (!ncl) {
+            qtest_send_prefix(chr);
+            qtest_send(chr, "FAIL Unknown clock\n");
+            return;
+        }
+
+        if (is_outbound && !ncl->output) {
+            qtest_send_prefix(chr);
+            qtest_send(chr, "FAIL Not an output clock\n");
+            return;
+        }
+
+        if (!is_outbound && ncl->output) {
+            qtest_send_prefix(chr);
+            qtest_send(chr, "FAIL Not an input clock\n");
+            return;
+        }
+
+        qtest_sendf(chr, "OK %u\n", clock_get_hz(ncl->clock));
     } else if (process_command_cb && process_command_cb(chr, words)) {
         /* Command got consumed by the callback handler */
     } else {
diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index 4055d6b953..cc11b5f42e 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -2065,3 +2065,32 @@  bool mkimg(const char *file, const char *fmt, unsigned size_mb)
 
     return ret && !err;
 }
+
+static uint64_t qtest_dev_clock_get_hz(QTestState *s, const char *path,
+                                       const char *name, bool out)
+{
+    gchar **args;
+    int ret;
+    uint64_t value;
+
+    qtest_sendf(s, "qdev_clock_%s_get_hz %s %s\n", out ? "out" : "in",
+                path, name);
+    args = qtest_rsp_args(s, 2);
+    ret = qemu_strtou64(args[1], NULL, 0, &value);
+    g_assert(!ret);
+    g_strfreev(args);
+
+    return value;
+}
+
+uint64_t qtest_dev_clock_out_get_hz(QTestState *s, const char *path,
+                                    const char *name)
+{
+    return qtest_dev_clock_get_hz(s, path, name, true);
+}
+
+uint64_t qtest_dev_clock_in_get_hz(QTestState *s, const char *path,
+                                   const char *name)
+{
+    return qtest_dev_clock_get_hz(s, path, name, false);
+}