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Count bus_dmamap_sync events for coherent ranges and non-coherent ranges

This commit is contained in:
skrll 2020-12-22 13:07:32 +00:00
parent 3065a28a94
commit 005355a11c
1 changed files with 32 additions and 8 deletions
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40
sys/arch/arm/arm32/bus_dma.c
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@ -1,4 +1,4 @@
/* $NetBSD: bus_dma.c,v 1.128 2020/12/20 10:34:33 jmcneill Exp $ */
/* $NetBSD: bus_dma.c,v 1.129 2020/12/22 13:07:32 skrll Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2020 The NetBSD Foundation, Inc.
@ -36,7 +36,7 @@
#include "opt_cputypes.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.128 2020/12/20 10:34:33 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.129 2020/12/22 13:07:32 skrll Exp $");
#include <sys/param.h>
@ -94,6 +94,19 @@ static struct evcnt bus_dma_sync_postreadwrite =
static struct evcnt bus_dma_sync_postwrite =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync postwrite");
static struct evcnt bus_dma_sync_coherent_prereadwrite =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync coherent prereadwrite");
static struct evcnt bus_dma_sync_coherent_preread =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync coherent preread");
static struct evcnt bus_dma_sync_coherent_prewrite =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync coherent prewrite");
static struct evcnt bus_dma_sync_coherent_postread =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync coherent postread");
static struct evcnt bus_dma_sync_coherent_postreadwrite =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync coherent postreadwrite");
static struct evcnt bus_dma_sync_coherent_postwrite =
EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "busdma", "sync coherent postwrite");
EVCNT_ATTACH_STATIC(bus_dma_creates);
EVCNT_ATTACH_STATIC(bus_dma_bounced_creates);
EVCNT_ATTACH_STATIC(bus_dma_loads);
@ -114,6 +127,13 @@ EVCNT_ATTACH_STATIC(bus_dma_sync_postread);
EVCNT_ATTACH_STATIC(bus_dma_sync_postreadwrite);
EVCNT_ATTACH_STATIC(bus_dma_sync_postwrite);
EVCNT_ATTACH_STATIC(bus_dma_sync_coherent_prereadwrite);
EVCNT_ATTACH_STATIC(bus_dma_sync_coherent_preread);
EVCNT_ATTACH_STATIC(bus_dma_sync_coherent_prewrite);
EVCNT_ATTACH_STATIC(bus_dma_sync_coherent_postread);
EVCNT_ATTACH_STATIC(bus_dma_sync_coherent_postreadwrite);
EVCNT_ATTACH_STATIC(bus_dma_sync_coherent_postwrite);
#define STAT_INCR(x) (bus_dma_ ## x.ev_count++)
#else
#define STAT_INCR(x) __nothing
@ -1108,7 +1128,11 @@ _bus_dmamap_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset,
if (post_ops == BUS_DMASYNC_POSTWRITE) {
KASSERT(pre_ops == 0);
STAT_INCR(sync_postwrite);
if ((map->_dm_flags & _BUS_DMAMAP_COHERENT)) {
STAT_INCR(sync_coherent_postwrite);
} else {
STAT_INCR(sync_postwrite);
}
return;
}
@ -1157,23 +1181,23 @@ _bus_dmamap_sync(bus_dma_tag_t t, bus_dmamap_t map, bus_addr_t offset,
if ((map->_dm_flags & _BUS_DMAMAP_COHERENT)) {
switch (ops) {
case BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE:
STAT_INCR(sync_prereadwrite);
STAT_INCR(sync_coherent_prereadwrite);
break;
case BUS_DMASYNC_PREREAD:
STAT_INCR(sync_preread);
STAT_INCR(sync_coherent_preread);
break;
case BUS_DMASYNC_PREWRITE:
STAT_INCR(sync_prewrite);
STAT_INCR(sync_coherent_prewrite);
break;
case BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE:
STAT_INCR(sync_postreadwrite);
STAT_INCR(sync_coherent_postreadwrite);
break;
case BUS_DMASYNC_POSTREAD:
STAT_INCR(sync_postread);
STAT_INCR(sync_coherent_postread);
break;
/* BUS_DMASYNC_POSTWRITE was aleady handled as a fastpath */