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-rw-r--r--sys/alpha/alpha/busdma_machdep.c8
-rw-r--r--sys/amd64/amd64/busdma_machdep.c8
-rw-r--r--sys/i386/i386/busdma_machdep.c8
-rw-r--r--sys/ia64/ia64/busdma_machdep.c8
-rw-r--r--sys/powerpc/powerpc/busdma_machdep.c8
-rw-r--r--sys/sparc64/sparc64/bus_machdep.c5
6 files changed, 23 insertions, 22 deletions
diff --git a/sys/alpha/alpha/busdma_machdep.c b/sys/alpha/alpha/busdma_machdep.c
index 2075053..0b9ed6d 100644
--- a/sys/alpha/alpha/busdma_machdep.c
+++ b/sys/alpha/alpha/busdma_machdep.c
@@ -42,6 +42,7 @@
#include <vm/vm_page.h>
#include <vm/vm_map.h>
+#include <machine/atomic.h>
#include <machine/bus.h>
#include <machine/sgmap.h>
#include <machine/md_var.h>
@@ -179,9 +180,8 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
newtag->filterarg = parent->filterarg;
newtag->parent = parent->parent;
}
- if (newtag->parent != NULL) {
- parent->ref_count++;
- }
+ if (newtag->parent != NULL)
+ atomic_add_int(&parent->ref_count, 1);
}
if (newtag->lowaddr < ptoa(Maxmem) && (flags & BUS_DMA_ALLOCNOW) != 0) {
@@ -228,7 +228,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
bus_dma_tag_t parent;
parent = dmat->parent;
- dmat->ref_count--;
+ atomic_subtract_int(&dmat->ref_count, 1);
if (dmat->ref_count == 0) {
free(dmat, M_DEVBUF);
}
diff --git a/sys/amd64/amd64/busdma_machdep.c b/sys/amd64/amd64/busdma_machdep.c
index d431ea0..4fe748c 100644
--- a/sys/amd64/amd64/busdma_machdep.c
+++ b/sys/amd64/amd64/busdma_machdep.c
@@ -42,6 +42,7 @@
#include <vm/vm_page.h>
#include <vm/vm_map.h>
+#include <machine/atomic.h>
#include <machine/bus.h>
#include <machine/md_var.h>
@@ -186,9 +187,8 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
newtag->filterarg = parent->filterarg;
newtag->parent = parent->parent;
}
- if (newtag->parent != NULL) {
- parent->ref_count++;
- }
+ if (newtag->parent != NULL)
+ atomic_add_int(&parent->ref_count, 1);
}
if (newtag->lowaddr < ptoa(Maxmem) && (flags & BUS_DMA_ALLOCNOW) != 0) {
@@ -235,7 +235,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
bus_dma_tag_t parent;
parent = dmat->parent;
- dmat->ref_count--;
+ atomic_subtract_int(&dmat->ref_count, 1);
if (dmat->ref_count == 0) {
free(dmat, M_DEVBUF);
/*
diff --git a/sys/i386/i386/busdma_machdep.c b/sys/i386/i386/busdma_machdep.c
index d431ea0..4fe748c 100644
--- a/sys/i386/i386/busdma_machdep.c
+++ b/sys/i386/i386/busdma_machdep.c
@@ -42,6 +42,7 @@
#include <vm/vm_page.h>
#include <vm/vm_map.h>
+#include <machine/atomic.h>
#include <machine/bus.h>
#include <machine/md_var.h>
@@ -186,9 +187,8 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
newtag->filterarg = parent->filterarg;
newtag->parent = parent->parent;
}
- if (newtag->parent != NULL) {
- parent->ref_count++;
- }
+ if (newtag->parent != NULL)
+ atomic_add_int(&parent->ref_count, 1);
}
if (newtag->lowaddr < ptoa(Maxmem) && (flags & BUS_DMA_ALLOCNOW) != 0) {
@@ -235,7 +235,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
bus_dma_tag_t parent;
parent = dmat->parent;
- dmat->ref_count--;
+ atomic_subtract_int(&dmat->ref_count, 1);
if (dmat->ref_count == 0) {
free(dmat, M_DEVBUF);
/*
diff --git a/sys/ia64/ia64/busdma_machdep.c b/sys/ia64/ia64/busdma_machdep.c
index 9b70d6c..3feacca 100644
--- a/sys/ia64/ia64/busdma_machdep.c
+++ b/sys/ia64/ia64/busdma_machdep.c
@@ -41,6 +41,7 @@
#include <vm/vm_page.h>
#include <vm/vm_map.h>
+#include <machine/atomic.h>
#include <machine/bus.h>
#include <machine/md_var.h>
@@ -175,9 +176,8 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
newtag->filterarg = parent->filterarg;
newtag->parent = parent->parent;
}
- if (newtag->parent != NULL) {
- parent->ref_count++;
- }
+ if (newtag->parent != NULL)
+ atomic_add_int(&parent->ref_count, 1);
}
if (newtag->lowaddr < ptoa(Maxmem) && (flags & BUS_DMA_ALLOCNOW) != 0) {
@@ -224,7 +224,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
bus_dma_tag_t parent;
parent = dmat->parent;
- dmat->ref_count--;
+ atomic_subtract_int(&dmat->ref_count, 1);
if (dmat->ref_count == 0) {
free(dmat, M_DEVBUF);
}
diff --git a/sys/powerpc/powerpc/busdma_machdep.c b/sys/powerpc/powerpc/busdma_machdep.c
index 6c6dd36..63fdf71 100644
--- a/sys/powerpc/powerpc/busdma_machdep.c
+++ b/sys/powerpc/powerpc/busdma_machdep.c
@@ -51,6 +51,7 @@ static const char rcsid[] =
#include <vm/vm_page.h>
#include <vm/vm_map.h>
+#include <machine/atomic.h>
#include <machine/bus.h>
#include <machine/cpufunc.h>
@@ -133,9 +134,8 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
newtag->filterarg = parent->filterarg;
newtag->parent = parent->parent;
}
- if (newtag->parent != NULL) {
- parent->ref_count++;
- }
+ if (newtag->parent != NULL)
+ atomic_add_int(&parent->ref_count, 1);
}
*dmat = newtag;
@@ -154,7 +154,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
bus_dma_tag_t parent;
parent = dmat->parent;
- dmat->ref_count--;
+ atomic_subtract_int(&dmat->ref_count, 1);
if (dmat->ref_count == 0) {
free(dmat, M_DEVBUF);
/*
diff --git a/sys/sparc64/sparc64/bus_machdep.c b/sys/sparc64/sparc64/bus_machdep.c
index 588fc8c..11f7b78 100644
--- a/sys/sparc64/sparc64/bus_machdep.c
+++ b/sys/sparc64/sparc64/bus_machdep.c
@@ -128,6 +128,7 @@
#include <vm/vm_map.h>
#include <machine/asi.h>
+#include <machine/atomic.h>
#include <machine/bus.h>
#include <machine/bus_private.h>
#include <machine/cache.h>
@@ -246,7 +247,7 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
newtag->dt_boundary = ulmin(parent->dt_boundary,
newtag->dt_boundary);
}
- newtag->dt_parent->dt_ref_count++;
+ atomic_add_int(&newtag->dt_parent->dt_ref_count, 1);
*dmat = newtag;
return (0);
@@ -262,7 +263,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
return (EBUSY);
while (dmat != NULL) {
parent = dmat->dt_parent;
- dmat->dt_ref_count--;
+ atomic_subtract_int(&dmat->dt_ref_count, 1);
if (dmat->dt_ref_count == 0) {
free(dmat, M_DEVBUF);
/*
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