cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pagemap.h (2190B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#undef TRACE_SYSTEM
      3#define TRACE_SYSTEM pagemap
      4
      5#if !defined(_TRACE_PAGEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
      6#define _TRACE_PAGEMAP_H
      7
      8#include <linux/tracepoint.h>
      9#include <linux/mm.h>
     10
     11#define	PAGEMAP_MAPPED		0x0001u
     12#define PAGEMAP_ANONYMOUS	0x0002u
     13#define PAGEMAP_FILE		0x0004u
     14#define PAGEMAP_SWAPCACHE	0x0008u
     15#define PAGEMAP_SWAPBACKED	0x0010u
     16#define PAGEMAP_MAPPEDDISK	0x0020u
     17#define PAGEMAP_BUFFERS		0x0040u
     18
     19#define trace_pagemap_flags(folio) ( \
     20	(folio_test_anon(folio)		? PAGEMAP_ANONYMOUS  : PAGEMAP_FILE) | \
     21	(folio_mapped(folio)		? PAGEMAP_MAPPED     : 0) | \
     22	(folio_test_swapcache(folio)	? PAGEMAP_SWAPCACHE  : 0) | \
     23	(folio_test_swapbacked(folio)	? PAGEMAP_SWAPBACKED : 0) | \
     24	(folio_test_mappedtodisk(folio)	? PAGEMAP_MAPPEDDISK : 0) | \
     25	(folio_test_private(folio)	? PAGEMAP_BUFFERS    : 0) \
     26	)
     27
     28TRACE_EVENT(mm_lru_insertion,
     29
     30	TP_PROTO(struct folio *folio),
     31
     32	TP_ARGS(folio),
     33
     34	TP_STRUCT__entry(
     35		__field(struct folio *,	folio	)
     36		__field(unsigned long,	pfn	)
     37		__field(enum lru_list,	lru	)
     38		__field(unsigned long,	flags	)
     39	),
     40
     41	TP_fast_assign(
     42		__entry->folio	= folio;
     43		__entry->pfn	= folio_pfn(folio);
     44		__entry->lru	= folio_lru_list(folio);
     45		__entry->flags	= trace_pagemap_flags(folio);
     46	),
     47
     48	/* Flag format is based on page-types.c formatting for pagemap */
     49	TP_printk("folio=%p pfn=0x%lx lru=%d flags=%s%s%s%s%s%s",
     50			__entry->folio,
     51			__entry->pfn,
     52			__entry->lru,
     53			__entry->flags & PAGEMAP_MAPPED		? "M" : " ",
     54			__entry->flags & PAGEMAP_ANONYMOUS	? "a" : "f",
     55			__entry->flags & PAGEMAP_SWAPCACHE	? "s" : " ",
     56			__entry->flags & PAGEMAP_SWAPBACKED	? "b" : " ",
     57			__entry->flags & PAGEMAP_MAPPEDDISK	? "d" : " ",
     58			__entry->flags & PAGEMAP_BUFFERS	? "B" : " ")
     59);
     60
     61TRACE_EVENT(mm_lru_activate,
     62
     63	TP_PROTO(struct folio *folio),
     64
     65	TP_ARGS(folio),
     66
     67	TP_STRUCT__entry(
     68		__field(struct folio *,	folio	)
     69		__field(unsigned long,	pfn	)
     70	),
     71
     72	TP_fast_assign(
     73		__entry->folio	= folio;
     74		__entry->pfn	= folio_pfn(folio);
     75	),
     76
     77	TP_printk("folio=%p pfn=0x%lx", __entry->folio, __entry->pfn)
     78);
     79
     80#endif /* _TRACE_PAGEMAP_H */
     81
     82/* This part must be outside protection */
     83#include <trace/define_trace.h>