[PATCH 7/7] pci: designware: add initial tracing events

[Ben Dooks]

Add a couple of tracing events for internal driver updates

Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
---
 hw/pci-host/designware.c | 4 ++++
 hw/pci-host/trace-events | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/hw/pci-host/designware.c b/hw/pci-host/designware.c
index a47ae48071..489959513f 100644
--- a/hw/pci-host/designware.c
+++ b/hw/pci-host/designware.c
@@ -30,6 +30,7 @@
 #include "migration/vmstate.h"
 #include "hw/irq.h"
 #include "hw/pci-host/designware.h"
+#include "trace.h"
 
 #define DESIGNWARE_PCIE_PORT_LINK_CONTROL          0x710
 #define DESIGNWARE_PCIE_PHY_DEBUG_R1               0x72C
@@ -112,6 +113,7 @@ static void 
designware_pcie_root_update_msi_mapping(DesignwarePCIERoot *root)
     const uint64_t base = root->msi.base;
     const bool enable   = root->msi.intr[0].enable;
 
+    trace_dw_pcie_msi_update(base, enable);
     memory_region_set_address(mem, base);
     memory_region_set_enabled(mem, enable);
 }
@@ -279,6 +281,8 @@ static void 
designware_pcie_update_viewport(DesignwarePCIERoot *root,
     uint32_t cr0          = viewport->cr[0];
     MemoryRegion *current, *other;
 
+    trace_dw_pcie_viewport_update(target, base, size, cr0, enabled);
+
     if ((cr0 & 0xFF) == DESIGNWARE_PCIE_ATU_TYPE_MEM) {
         current = &viewport->mem;
         other   = &viewport->cfg;
diff --git a/hw/pci-host/trace-events b/hw/pci-host/trace-events
index 437e66ff50..6b064d3c74 100644
--- a/hw/pci-host/trace-events
+++ b/hw/pci-host/trace-events
@@ -3,6 +3,10 @@
 # bonito.c
 bonito_spciconf_small_access(uint64_t addr, unsigned size) "PCI config address 
is smaller then 32-bit, addr: 0x%"PRIx64", size: %u"
 
+# designware.c
+dw_pcie_msi_update(uint64_t base, int enable) "base 0x%" PRIx64 " enable %d"
+dw_pcie_viewport_update(uint64_t target, uint64_t base, uint64_t limit, 
uint32_t cr0, int enabled) "target 0x%" PRIx64 " base 0x%" PRIx64 " limit 0x%" 
PRIx64 " cr0 0x%" PRIx32 " enabled %d"
+
 # grackle.c
 grackle_set_irq(int irq_num, int level) "set_irq num %d level %d"
 
-- 
2.35.1