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Date: Thu, 19 Feb 2009 17:53:26 +0800
From: Yang Hongyang <yanghy@...fujitsu.com>
To: Ingo Molnar <mingo@...e.hu>
CC: Andrew Morton <akpm@...ux-foundation.org>,
"David S. Miller" <davem@...emloft.net>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
Borislav Petkov <petkovbb@...glemail.com>
Subject: [PATCHv2 11/11]Update the old macro DMA_nBIT_MASK related documentations
Update the old macro DMA_nBIT_MASK related documentations
Signed-off-by: Yang Hongyang<yanghy@...fujitsu.com>
---
Documentation/DMA-mapping.txt | 18 +++++++++---------
.../sound/alsa/DocBook/writing-an-alsa-driver.tmpl | 8 ++++----
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/Documentation/DMA-mapping.txt b/Documentation/DMA-mapping.txt
index b2a4d6d..01f24e9 100644
--- a/Documentation/DMA-mapping.txt
+++ b/Documentation/DMA-mapping.txt
@@ -136,7 +136,7 @@ exactly why.
The standard 32-bit addressing PCI device would do something like
this:
- if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
printk(KERN_WARNING
"mydev: No suitable DMA available.\n");
goto ignore_this_device;
@@ -155,9 +155,9 @@ all 64-bits when accessing streaming DMA:
int using_dac;
- if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
using_dac = 1;
- } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
+ } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
using_dac = 0;
} else {
printk(KERN_WARNING
@@ -170,14 +170,14 @@ the case would look like this:
int using_dac, consistent_using_dac;
- if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
using_dac = 1;
consistent_using_dac = 1;
- pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
- } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
+ pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+ } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
using_dac = 0;
consistent_using_dac = 0;
- pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
} else {
printk(KERN_WARNING
"mydev: No suitable DMA available.\n");
@@ -192,7 +192,7 @@ check the return value from pci_set_consistent_dma_mask().
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, DMA_24BIT_MASK)) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(24))) {
printk(KERN_WARNING
"mydev: 24-bit DMA addressing not available.\n");
goto ignore_this_device;
@@ -213,7 +213,7 @@ most specific mask.
Here is pseudo-code showing how this might be done:
- #define PLAYBACK_ADDRESS_BITS DMA_32BIT_MASK
+ #define PLAYBACK_ADDRESS_BITS DMA_BIT_MASK(32)
#define RECORD_ADDRESS_BITS 0x00ffffff
struct my_sound_card *card;
diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 87a7c07..282891c 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -1133,8 +1133,8 @@
if (err < 0)
return err;
/* check PCI availability (28bit DMA) */
- if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
- pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
+ if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
printk(KERN_ERR "error to set 28bit mask DMA\n");
pci_disable_device(pci);
return -ENXIO;
@@ -1248,8 +1248,8 @@
err = pci_enable_device(pci);
if (err < 0)
return err;
- if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
- pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
+ if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
printk(KERN_ERR "error to set 28bit mask DMA\n");
pci_disable_device(pci);
return -ENXIO;
--
1.6.0.3
--
Regards
Yang Hongyang
--
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