commit 19845504da1bdee4be7d0fba33da5be9efa4c11b
author Philippe Mathieu-Daudé <f4bug@amsat.org> Thu Sep 26 19:34:15 2019 +0200
committer Peter Maydell <peter.maydell@linaro.org> Tue Oct 15 18:09:05 2019 +0100
tree 850e918d11bc031e9a2cd07da526dfea4af6bc65
parent 00cbd5bd74b1d9db3f39c45aea8eebeedb641051

hw/misc/bcm2835_mbox: Add trace events

Add trace events for read/write accesses and IRQ.

Properties are structures used for the ARM particular MBOX.
Since one call in bcm2835_property.c concerns the mbox block,
name this trace event in the same bcm2835_mbox* namespace.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190926173428.10713-8-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/misc/bcm2835_mbox.c

diff --git a/hw/misc/bcm2835_mbox.c b/hw/misc/bcm2835_mbox.c
index 7728562..77d2d80 100644
--- a/hw/misc/bcm2835_mbox.c
+++ b/hw/misc/bcm2835_mbox.c
@@ -15,6 +15,7 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "trace.h"
 
 #define MAIL0_PEEK   0x90
 #define MAIL0_SENDER 0x94
@@ -123,6 +124,7 @@
             set = true;
         }
     }
+    trace_bcm2835_mbox_irq(set);
     qemu_set_irq(s->arm_irq, set);
 }
 
@@ -178,8 +180,10 @@
     default:
         qemu_log_mask(LOG_UNIMP, "%s: Unsupported offset 0x%"HWADDR_PRIx"\n",
                       __func__, offset);
+        trace_bcm2835_mbox_read(size, offset, res);
         return 0;
     }
+    trace_bcm2835_mbox_read(size, offset, res);
 
     bcm2835_mbox_update(s);
 
@@ -195,6 +199,7 @@
 
     offset &= 0xff;
 
+    trace_bcm2835_mbox_write(size, offset, value);
     switch (offset) {
     case MAIL0_SENDER:
         break;

hw/misc/bcm2835_property.c

diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c
index 43a5465..0eea2e2 100644
--- a/hw/misc/bcm2835_property.c
+++ b/hw/misc/bcm2835_property.c
@@ -13,6 +13,7 @@
 #include "sysemu/dma.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "trace.h"
 
 /* https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface */
 
@@ -283,6 +284,7 @@
             break;
         }
 
+        trace_bcm2835_mbox_property(tag, bufsize, resplen);
         if (tag == 0) {
             break;
         }

hw/misc/trace-events

diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index 7427622..1deb1d0 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -143,3 +143,9 @@
 
 # aspeed_xdma.c
 aspeed_xdma_write(uint64_t offset, uint64_t data) "XDMA write: offset 0x%" PRIx64 " data 0x%" PRIx64
+
+# bcm2835_mbox.c
+bcm2835_mbox_write(unsigned int size, uint64_t addr, uint64_t value) "mbox write sz:%u addr:0x%"PRIx64" data:0x%"PRIx64
+bcm2835_mbox_read(unsigned int size, uint64_t addr, uint64_t value) "mbox read sz:%u addr:0x%"PRIx64" data:0x%"PRIx64
+bcm2835_mbox_irq(unsigned level) "mbox irq:ARM level:%u"
+bcm2835_mbox_property(uint32_t tag, uint32_t bufsize, size_t resplen) "mbox property tag:0x%08x in_sz:%u out_sz:%zu"