summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/DMA-mapping.txt4
-rw-r--r--Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl16
-rw-r--r--drivers/media/video/saa7134/saa7134-core.c3
-rw-r--r--drivers/sn/ioc3.c5
-rw-r--r--include/linux/dma-mapping.h2
-rw-r--r--sound/oss/emu10k1/main.c3
-rw-r--r--sound/pci/als300.c5
7 files changed, 21 insertions, 17 deletions
diff --git a/Documentation/DMA-mapping.txt b/Documentation/DMA-mapping.txt
index ee4bb73683cd..10bf4deb96aa 100644
--- a/Documentation/DMA-mapping.txt
+++ b/Documentation/DMA-mapping.txt
@@ -194,7 +194,7 @@ document for how to handle this case.
Finally, if your device can only drive the low 24-bits of
address during PCI bus mastering you might do something like:
- if (pci_set_dma_mask(pdev, 0x00ffffff)) {
+ if (pci_set_dma_mask(pdev, DMA_24BIT_MASK)) {
printk(KERN_WARNING
"mydev: 24-bit DMA addressing not available.\n");
goto ignore_this_device;
@@ -212,7 +212,7 @@ functions (for example a sound card provides playback and record
functions) and the various different functions have _different_
DMA addressing limitations, you may wish to probe each mask and
only provide the functionality which the machine can handle. It
-is important that the last call to pci_set_dma_mask() be for the
+is important that the last call to pci_set_dma_mask() be for the
most specific mask.
Here is pseudo-code showing how this might be done:
diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 6feef9e82b63..68eeebc17ff4 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -1123,8 +1123,8 @@
if ((err = pci_enable_device(pci)) < 0)
return err;
/* check PCI availability (28bit DMA) */
- if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
- pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
+ if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
printk(KERN_ERR "error to set 28bit mask DMA\n");
pci_disable_device(pci);
return -ENXIO;
@@ -1216,7 +1216,7 @@
The allocation of PCI resources is done in the
<function>probe()</function> function, and usually an extra
<function>xxx_create()</function> function is written for this
- purpose.
+ purpose.
</para>
<para>
@@ -1225,7 +1225,7 @@
allocating resources. Also, you need to set the proper PCI DMA
mask to limit the accessed i/o range. In some cases, you might
need to call <function>pci_set_master()</function> function,
- too.
+ too.
</para>
<para>
@@ -1236,8 +1236,8 @@
<![CDATA[
if ((err = pci_enable_device(pci)) < 0)
return err;
- if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
- pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
+ if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
printk(KERN_ERR "error to set 28bit mask DMA\n");
pci_disable_device(pci);
return -ENXIO;
@@ -1256,13 +1256,13 @@
functions. Unlike ALSA ver.0.5.x., there are no helpers for
that. And these resources must be released in the destructor
function (see below). Also, on ALSA 0.9.x, you don't need to
- allocate (pseudo-)DMA for PCI like ALSA 0.5.x.
+ allocate (pseudo-)DMA for PCI like ALSA 0.5.x.
</para>
<para>
Now assume that this PCI device has an I/O port with 8 bytes
and an interrupt. Then struct <structname>mychip</structname> will have the
- following fields:
+ following fields:
<informalexample>
<programlisting>
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index c98571c9d5a6..13de05532e0a 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -32,6 +32,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/mutex.h>
+#include <linux/dma-mapping.h>
#include "saa7134-reg.h"
#include "saa7134.h"
@@ -870,7 +871,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
dev->pci_lat,pci_resource_start(pci_dev,0));
pci_set_master(pci_dev);
- if (!pci_dma_supported(pci_dev,0xffffffff)) {
+ if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
err = -EIO;
goto fail1;
diff --git a/drivers/sn/ioc3.c b/drivers/sn/ioc3.c
index 93449a1a0065..0b49ff78efc1 100644
--- a/drivers/sn/ioc3.c
+++ b/drivers/sn/ioc3.c
@@ -11,6 +11,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
@@ -619,9 +620,9 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
pci_set_master(pdev);
#ifdef USE_64BIT_DMA
- ret = pci_set_dma_mask(pdev, 0xffffffffffffffffULL);
+ ret = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
if (!ret) {
- ret = pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL);
+ ret = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
if (ret < 0) {
printk(KERN_WARNING "%s: Unable to obtain 64 bit DMA "
"for consistent allocations\n",
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 9b4751aecc23..ff61817082fa 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -21,7 +21,7 @@ enum dma_data_direction {
#define DMA_30BIT_MASK 0x000000003fffffffULL
#define DMA_29BIT_MASK 0x000000001fffffffULL
#define DMA_28BIT_MASK 0x000000000fffffffULL
-#define DMA_24BIT_MASK 0x0000000000ffffffULL
+#define DMA_24BIT_MASK 0x0000000000ffffffULL
#include <asm/dma-mapping.h>
diff --git a/sound/oss/emu10k1/main.c b/sound/oss/emu10k1/main.c
index 0cd44a6f7ac0..3721c5857b90 100644
--- a/sound/oss/emu10k1/main.c
+++ b/sound/oss/emu10k1/main.c
@@ -94,6 +94,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
+#include <linux/dma-mapping.h>
#include "hwaccess.h"
#include "8010.h"
@@ -119,7 +120,7 @@
/* the emu10k1 _seems_ to only supports 29 bit (512MiB) bit bus master */
-#define EMU10K1_DMA_MASK 0x1fffffff /* DMA buffer mask for pci_alloc_consist */
+#define EMU10K1_DMA_MASK DMA_29BIT_MASK /* DMA buffer mask for pci_alloc_consist */
#ifndef PCI_VENDOR_ID_CREATIVE
#define PCI_VENDOR_ID_CREATIVE 0x1102
diff --git a/sound/pci/als300.c b/sound/pci/als300.c
index 37b80570a5c6..91899f87f037 100644
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -35,6 +35,7 @@
#include <linux/init.h>
#include <linux/moduleparam.h>
#include <linux/pci.h>
+#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
@@ -691,8 +692,8 @@ static int __devinit snd_als300_create(snd_card_t *card,
if ((err = pci_enable_device(pci)) < 0)
return err;
- if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
- pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
+ if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
printk(KERN_ERR "error setting 28bit DMA mask\n");
pci_disable_device(pci);
return -ENXIO;
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-06 22:01:55 +0000