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Commit 007bb7d6 authored by Sukadev Bhattiprolu's avatar Sukadev Bhattiprolu Committed by Michael Ellerman
Browse files

powerpc/vas: Add a couple of trace points 



Add a couple of trace points in the VAS driver

Signed-off-by: default avatarSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
[mpe: Add SPDX tag to new header]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 45ddea8a

arch/powerpc/platforms/powernv/vas-trace.h

0 → 100644
+113 −0
Original line number Diff line number Diff line 
/* 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>

arch/powerpc/platforms/powernv/vas-window.c

+9 −0
Original line number Diff line number Diff line
@@ -21,6 +21,9 @@ 
#include "vas.h"

#include "copy-paste.h"



#define CREATE_TRACE_POINTS

#include "vas-trace.h"



/*

 * Compute the paste address region for the window @window using the

 * ->paste_base_addr and ->paste_win_id_shift we got from device tree.
@@ -880,6 +883,8 @@ struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop, 
	struct vas_winctx winctx;

	struct vas_instance *vinst;



	trace_vas_rx_win_open(current, vasid, cop, rxattr);



	if (!rx_win_args_valid(cop, rxattr))

		return ERR_PTR(-EINVAL);
@@ -1008,6 +1013,8 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop, 
	struct vas_winctx winctx;

	struct vas_instance *vinst;



	trace_vas_tx_win_open(current, vasid, cop, attr);



	if (!tx_win_args_valid(cop, attr))

		return ERR_PTR(-EINVAL);
@@ -1100,6 +1107,8 @@ int vas_paste_crb(struct vas_window *txwin, int offset, bool re) 
	void *addr;

	uint64_t val;



	trace_vas_paste_crb(current, txwin);



	/*

	 * Only NX windows are supported for now and hardware assumes

	 * report-enable flag is set for NX windows. Ensure software