target/arm: Convert power control DPRINTF() uses to trace events

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/arm-powerctl.c

@@ -17,24 +17,12 @@
 #include "qemu/main-loop.h"
 #include "system/tcg.h"
 #include "target/arm/multiprocessing.h"
-
-#ifndef DEBUG_ARM_POWERCTL
-#define DEBUG_ARM_POWERCTL 0
-#endif
-
-#define DPRINTF(fmt, args...) \
-    do { \
-        if (DEBUG_ARM_POWERCTL) { \
-            fprintf(stderr, "[ARM]%s: " fmt , __func__, ##args); \
-        } \
-    } while (0)
+#include "trace.h"
 
 CPUState *arm_get_cpu_by_id(uint64_t id)
 {
     CPUState *cpu;
 
-    DPRINTF("cpu %" PRId64 "\n", id);
-
     CPU_FOREACH(cpu) {
         ARMCPU *armcpu = ARM_CPU(cpu);
 
@@ -102,9 +90,9 @@ int arm_set_cpu_on(uint64_t cpuid, uint64_t entry, uint64_t context_id,
 
     assert(bql_locked());
 
-    DPRINTF("cpu %" PRId64 " (EL %d, %s) @ 0x%" PRIx64 " with R0 = 0x%" PRIx64
-            "\n", cpuid, target_el, target_aa64 ? "aarch64" : "aarch32", entry,
-            context_id);
+    trace_arm_powerctl_set_cpu_on(cpuid, target_el,
+                                  target_aa64 ? "aarch64" : "aarch32",
+                                  entry, context_id);
 
     /* requested EL level need to be in the 1 to 3 range */
     assert((target_el > 0) && (target_el < 4));
@@ -208,6 +196,8 @@ int arm_set_cpu_on_and_reset(uint64_t cpuid)
 
     assert(bql_locked());
 
+    trace_arm_powerctl_set_cpu_on_and_reset(cpuid);
+
     /* Retrieve the cpu we are powering up */
     target_cpu_state = arm_get_cpu_by_id(cpuid);
     if (!target_cpu_state) {
@@ -261,7 +251,7 @@ int arm_set_cpu_off(uint64_t cpuid)
 
     assert(bql_locked());
 
-    DPRINTF("cpu %" PRId64 "\n", cpuid);
+    trace_arm_powerctl_set_cpu_off(cpuid);
 
     /* change to the cpu we are powering up */
     target_cpu_state = arm_get_cpu_by_id(cpuid);
@@ -297,7 +287,7 @@ int arm_reset_cpu(uint64_t cpuid)
 
     assert(bql_locked());
 
-    DPRINTF("cpu %" PRId64 "\n", cpuid);
+    trace_arm_powerctl_set_cpu_off(cpuid);
 
     /* change to the cpu we are resetting */
     target_cpu_state = arm_get_cpu_by_id(cpuid);

target/arm/trace-events

@@ -13,3 +13,9 @@ arm_gt_update_irq(int timer, int irqstate) "gt_update_irq: timer %d irqstate %d"
 
 # kvm.c
 kvm_arm_fixup_msi_route(uint64_t iova, uint64_t gpa) "MSI iova = 0x%"PRIx64" is translated into 0x%"PRIx64
+
+# arm-powerctl.c
+arm_powerctl_set_cpu_on(uint64_t mp_aff, unsigned target_el, const char *mode, uint64_t entry, uint64_t context_id) "cpu %" PRIu64 " (EL %u, %s) @ 0x%" PRIx64 " with R0 = 0x%" PRIx64
+arm_powerctl_set_cpu_on_and_reset(uint64_t mp_aff) "cpu %" PRIu64
+arm_powerctl_set_cpu_off(uint64_t mp_aff) "cpu %" PRIu64
+arm_powerctl_reset_cpu(uint64_t mp_aff) "cpu %" PRIu64