@@ -499,6 +499,7 @@ static void invalidate_range(struct mmu_notifier *mn,
unsigned long addr, pid, page_size = PAGE_SIZE;
pid = mm->context.id;
+ trace_ocxl_mmu_notifier_range(start, end, pid);
spin_lock(&link->atsd_lock);
for (addr = start; addr < end; addr += page_size)
@@ -590,6 +591,7 @@ int ocxl_link_add_pe(void *link_handle, int pasid, u32 pidr, u32 tidr,
/* Use MMIO registers for the TLB Invalidate
* operations.
*/
+ trace_ocxl_init_mmu_notifier(pasid, mm->context.id);
mmu_notifier_register(&pe_data->mmu_notifier, mm);
}
}
@@ -725,6 +727,8 @@ int ocxl_link_remove_pe(void *link_handle, int pasid)
} else {
if (pe_data->mm) {
if (link->arva) {
+ trace_ocxl_release_mmu_notifier(pasid,
+ pe_data->mm->context.id);
mmu_notifier_unregister(&pe_data->mmu_notifier,
pe_data->mm);
spin_lock(&link->atsd_lock);
@@ -8,6 +8,70 @@
#include <linux/tracepoint.h>
+
+TRACE_EVENT(ocxl_mmu_notifier_range,
+ TP_PROTO(unsigned long start, unsigned long end, unsigned long pidr),
+ TP_ARGS(start, end, pidr),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, start)
+ __field(unsigned long, end)
+ __field(unsigned long, pidr)
+ ),
+
+ TP_fast_assign(
+ __entry->start = start;
+ __entry->end = end;
+ __entry->pidr = pidr;
+ ),
+
+ TP_printk("start=0x%lx end=0x%lx pidr=0x%lx",
+ __entry->start,
+ __entry->end,
+ __entry->pidr
+ )
+);
+
+TRACE_EVENT(ocxl_init_mmu_notifier,
+ TP_PROTO(int pasid, unsigned long pidr),
+ TP_ARGS(pasid, pidr),
+
+ TP_STRUCT__entry(
+ __field(int, pasid)
+ __field(unsigned long, pidr)
+ ),
+
+ TP_fast_assign(
+ __entry->pasid = pasid;
+ __entry->pidr = pidr;
+ ),
+
+ TP_printk("pasid=%d, pidr=0x%lx",
+ __entry->pasid,
+ __entry->pidr
+ )
+);
+
+TRACE_EVENT(ocxl_release_mmu_notifier,
+ TP_PROTO(int pasid, unsigned long pidr),
+ TP_ARGS(pasid, pidr),
+
+ TP_STRUCT__entry(
+ __field(int, pasid)
+ __field(unsigned long, pidr)
+ ),
+
+ TP_fast_assign(
+ __entry->pasid = pasid;
+ __entry->pidr = pidr;
+ ),
+
+ TP_printk("pasid=%d, pidr=0x%lx",
+ __entry->pasid,
+ __entry->pidr
+ )
+);
+
DECLARE_EVENT_CLASS(ocxl_context,
TP_PROTO(pid_t pid, void *spa, int pasid, u32 pidr, u32 tidr),
TP_ARGS(pid, spa, pasid, pidr, tidr),