powerpc/vas: Add a couple of trace points

Add a couple of trace points in the VAS driver

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
[mpe: Add SPDX tag to new header]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 113 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/powernv/vas-trace.h b/arch/powerpc/platforms/powernv/vas-trace.h
new file mode 100644
index 000000000000..a449b9f0c12e
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/vas-trace.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM	vas
+
+#if !defined(_VAS_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+
+#define _VAS_TRACE_H
+#include <linux/tracepoint.h>
+#include <linux/sched.h>
+#include <asm/vas.h>
+
+TRACE_EVENT(	vas_rx_win_open,
+
+		TP_PROTO(struct task_struct *tsk,
+			 int vasid,
+			 int cop,
+			 struct vas_rx_win_attr *rxattr),
+
+		TP_ARGS(tsk, vasid, cop, rxattr),
+
+		TP_STRUCT__entry(
+			__field(struct task_struct *, tsk)
+			__field(int, pid)
+			__field(int, cop)
+			__field(int, vasid)
+			__field(struct vas_rx_win_attr *, rxattr)
+			__field(int, lnotify_lpid)
+			__field(int, lnotify_pid)
+			__field(int, lnotify_tid)
+		),
+
+		TP_fast_assign(
+			__entry->pid = tsk->pid;
+			__entry->vasid = vasid;
+			__entry->cop = cop;
+			__entry->lnotify_lpid = rxattr->lnotify_lpid;
+			__entry->lnotify_pid = rxattr->lnotify_pid;
+			__entry->lnotify_tid = rxattr->lnotify_tid;
+		),
+
+		TP_printk("pid=%d, vasid=%d, cop=%d, lpid=%d, pid=%d, tid=%d",
+			__entry->pid, __entry->vasid, __entry->cop,
+			__entry->lnotify_lpid, __entry->lnotify_pid,
+			__entry->lnotify_tid)
+);
+
+TRACE_EVENT(	vas_tx_win_open,
+
+		TP_PROTO(struct task_struct *tsk,
+			 int vasid,
+			 int cop,
+			 struct vas_tx_win_attr *txattr),
+
+		TP_ARGS(tsk, vasid, cop, txattr),
+
+		TP_STRUCT__entry(
+			__field(struct task_struct *, tsk)
+			__field(int, pid)
+			__field(int, cop)
+			__field(int, vasid)
+			__field(struct vas_tx_win_attr *, txattr)
+			__field(int, lpid)
+			__field(int, pidr)
+		),
+
+		TP_fast_assign(
+			__entry->pid = tsk->pid;
+			__entry->vasid = vasid;
+			__entry->cop = cop;
+			__entry->lpid = txattr->lpid;
+			__entry->pidr = txattr->pidr;
+		),
+
+		TP_printk("pid=%d, vasid=%d, cop=%d, lpid=%d, pidr=%d",
+			__entry->pid, __entry->vasid, __entry->cop,
+			__entry->lpid, __entry->pidr)
+);
+
+TRACE_EVENT(	vas_paste_crb,
+
+		TP_PROTO(struct task_struct *tsk,
+			struct vas_window *win),
+
+		TP_ARGS(tsk, win),
+
+		TP_STRUCT__entry(
+			__field(struct task_struct *, tsk)
+			__field(struct vas_window *, win)
+			__field(int, pid)
+			__field(int, vasid)
+			__field(int, winid)
+			__field(unsigned long, paste_kaddr)
+		),
+
+		TP_fast_assign(
+			__entry->pid = tsk->pid;
+			__entry->vasid = win->vinst->vas_id;
+			__entry->winid = win->winid;
+			__entry->paste_kaddr = (unsigned long)win->paste_kaddr
+		),
+
+		TP_printk("pid=%d, vasid=%d, winid=%d, paste_kaddr=0x%016lx\n",
+			__entry->pid, __entry->vasid, __entry->winid,
+			__entry->paste_kaddr)
+);
+
+#endif /* _VAS_TRACE_H */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../arch/powerpc/platforms/powernv
+#define TRACE_INCLUDE_FILE vas-trace
+#include <trace/define_trace.h>