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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>
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113
arch/powerpc/platforms/powernv/vas-trace.h
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113
arch/powerpc/platforms/powernv/vas-trace.h
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@ -0,0 +1,113 @@
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/* SPDX-License-Identifier: GPL-2.0+ */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM vas
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#if !defined(_VAS_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _VAS_TRACE_H
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#include <linux/tracepoint.h>
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#include <linux/sched.h>
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#include <asm/vas.h>
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TRACE_EVENT( vas_rx_win_open,
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TP_PROTO(struct task_struct *tsk,
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int vasid,
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int cop,
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struct vas_rx_win_attr *rxattr),
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TP_ARGS(tsk, vasid, cop, rxattr),
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TP_STRUCT__entry(
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__field(struct task_struct *, tsk)
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__field(int, pid)
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__field(int, cop)
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__field(int, vasid)
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__field(struct vas_rx_win_attr *, rxattr)
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__field(int, lnotify_lpid)
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__field(int, lnotify_pid)
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__field(int, lnotify_tid)
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),
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TP_fast_assign(
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__entry->pid = tsk->pid;
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__entry->vasid = vasid;
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__entry->cop = cop;
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__entry->lnotify_lpid = rxattr->lnotify_lpid;
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__entry->lnotify_pid = rxattr->lnotify_pid;
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__entry->lnotify_tid = rxattr->lnotify_tid;
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),
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TP_printk("pid=%d, vasid=%d, cop=%d, lpid=%d, pid=%d, tid=%d",
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__entry->pid, __entry->vasid, __entry->cop,
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__entry->lnotify_lpid, __entry->lnotify_pid,
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__entry->lnotify_tid)
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);
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TRACE_EVENT( vas_tx_win_open,
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TP_PROTO(struct task_struct *tsk,
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int vasid,
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int cop,
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struct vas_tx_win_attr *txattr),
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TP_ARGS(tsk, vasid, cop, txattr),
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TP_STRUCT__entry(
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__field(struct task_struct *, tsk)
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__field(int, pid)
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__field(int, cop)
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__field(int, vasid)
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__field(struct vas_tx_win_attr *, txattr)
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__field(int, lpid)
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__field(int, pidr)
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),
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TP_fast_assign(
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__entry->pid = tsk->pid;
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__entry->vasid = vasid;
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__entry->cop = cop;
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__entry->lpid = txattr->lpid;
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__entry->pidr = txattr->pidr;
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),
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TP_printk("pid=%d, vasid=%d, cop=%d, lpid=%d, pidr=%d",
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__entry->pid, __entry->vasid, __entry->cop,
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__entry->lpid, __entry->pidr)
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);
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TRACE_EVENT( vas_paste_crb,
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TP_PROTO(struct task_struct *tsk,
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struct vas_window *win),
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TP_ARGS(tsk, win),
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TP_STRUCT__entry(
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__field(struct task_struct *, tsk)
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__field(struct vas_window *, win)
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__field(int, pid)
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__field(int, vasid)
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__field(int, winid)
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__field(unsigned long, paste_kaddr)
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),
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TP_fast_assign(
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__entry->pid = tsk->pid;
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__entry->vasid = win->vinst->vas_id;
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__entry->winid = win->winid;
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__entry->paste_kaddr = (unsigned long)win->paste_kaddr
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),
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TP_printk("pid=%d, vasid=%d, winid=%d, paste_kaddr=0x%016lx\n",
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__entry->pid, __entry->vasid, __entry->winid,
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__entry->paste_kaddr)
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);
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#endif /* _VAS_TRACE_H */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH ../../arch/powerpc/platforms/powernv
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#define TRACE_INCLUDE_FILE vas-trace
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#include <trace/define_trace.h>
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@ -21,6 +21,9 @@
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#include "vas.h"
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#include "copy-paste.h"
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#define CREATE_TRACE_POINTS
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#include "vas-trace.h"
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/*
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* Compute the paste address region for the window @window using the
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* ->paste_base_addr and ->paste_win_id_shift we got from device tree.
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@ -880,6 +883,8 @@ struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop,
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struct vas_winctx winctx;
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struct vas_instance *vinst;
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trace_vas_rx_win_open(current, vasid, cop, rxattr);
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if (!rx_win_args_valid(cop, rxattr))
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return ERR_PTR(-EINVAL);
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@ -1008,6 +1013,8 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop,
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struct vas_winctx winctx;
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struct vas_instance *vinst;
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trace_vas_tx_win_open(current, vasid, cop, attr);
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if (!tx_win_args_valid(cop, attr))
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return ERR_PTR(-EINVAL);
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@ -1100,6 +1107,8 @@ int vas_paste_crb(struct vas_window *txwin, int offset, bool re)
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void *addr;
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uint64_t val;
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trace_vas_paste_crb(current, txwin);
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/*
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* Only NX windows are supported for now and hardware assumes
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* report-enable flag is set for NX windows. Ensure software
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