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-rw-r--r--drivers/dma/at_hdmac.c1
-rw-r--r--drivers/dma/coh901318_lli.c1
-rw-r--r--drivers/dma/dmaengine.c1
-rw-r--r--drivers/dma/dmatest.c1
-rw-r--r--drivers/dma/fsldma.c1
-rw-r--r--drivers/dma/ioat/dma.c1
-rw-r--r--drivers/dma/ioat/dma_v2.c1
-rw-r--r--drivers/dma/ioat/dma_v3.c1
-rw-r--r--drivers/dma/ioat/pci.c1
-rw-r--r--drivers/dma/iop-adma.c1
-rw-r--r--drivers/dma/iovlock.c1
-rw-r--r--drivers/dma/mpc512x_dma.c1
-rw-r--r--drivers/dma/mv_xor.c1
-rw-r--r--drivers/dma/ppc4xx/adma.c1
-rw-r--r--drivers/dma/shdma.c53
-rw-r--r--drivers/dma/shdma.h4
-rw-r--r--drivers/dma/txx9dmac.c2
17 files changed, 53 insertions, 20 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index efc1a61ca23..278cf5bceef 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -22,6 +22,7 @@
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include "at_hdmac_regs.h"
diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index 71d58c1a1e8..9f7e0e6a7ee 100644
--- a/drivers/dma/coh901318_lli.c
+++ b/drivers/dma/coh901318_lli.c
@@ -11,6 +11,7 @@
#include <linux/spinlock.h>
#include <linux/dmapool.h>
#include <linux/memory.h>
+#include <linux/gfp.h>
#include <mach/coh901318.h>
#include "coh901318_lli.h"
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 87399cafce3..d18b5d069d7 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -58,6 +58,7 @@
#include <linux/jiffies.h>
#include <linux/rculist.h>
#include <linux/idr.h>
+#include <linux/slab.h>
static DEFINE_MUTEX(dma_list_mutex);
static LIST_HEAD(dma_device_list);
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 6fa55fe3dd2..68d58c414cf 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include <linux/wait.h>
static unsigned int test_buf_size = 16384;
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index bbb4be5a3ff..88f470f0d82 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/delay.h>
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 0099340b961..3e5a8005c62 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 1ed5d66d7dc..b5ae56c211e 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 26febc56dab..6740e319c9c 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -57,6 +57,7 @@
*/
#include <linux/pci.h>
+#include <linux/gfp.h>
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include "registers.h"
diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c
index d545fae30f3..99ec26725ba 100644
--- a/drivers/dma/ioat/pci.c
+++ b/drivers/dma/ioat/pci.c
@@ -30,6 +30,7 @@
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/dca.h>
+#include <linux/slab.h>
#include "dma.h"
#include "dma_v2.h"
#include "registers.h"
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index ca6e6a0cb79..1ebc801678b 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -32,6 +32,7 @@
#include <linux/memory.h>
#include <linux/ioport.h>
#include <linux/raid/pq.h>
+#include <linux/slab.h>
#include <mach/adma.h>
diff --git a/drivers/dma/iovlock.c b/drivers/dma/iovlock.c
index c0a272c7368..bb48a57c2fc 100644
--- a/drivers/dma/iovlock.c
+++ b/drivers/dma/iovlock.c
@@ -27,6 +27,7 @@
#include <linux/dmaengine.h>
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <net/tcp.h> /* for memcpy_toiovec */
#include <asm/io.h>
#include <asm/uaccess.h>
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 3fdf1f46bd6..bbbd5856662 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -37,6 +37,7 @@
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 466ab10c1ff..e2fd34da64f 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index e69d87f24a2..d44626fa35a 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -38,6 +38,7 @@
#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/proc_fs.h>
#include <linux/of.h>
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 5d17e09cb62..323afef7780 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -19,14 +19,14 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
-
-#include <asm/dmaengine.h>
+#include <linux/sh_dma.h>
#include "shdma.h"
@@ -44,7 +44,7 @@ enum sh_dmae_desc_status {
#define LOG2_DEFAULT_XFER_SIZE 2
/* A bitmask with bits enough for enum sh_dmae_slave_chan_id */
-static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SHDMA_SLAVE_NUMBER)];
+static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SH_DMA_SLAVE_NUMBER)];
static void sh_dmae_chan_ld_cleanup(struct sh_dmae_chan *sh_chan, bool all);
@@ -189,7 +189,7 @@ static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val)
struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
struct sh_dmae_device, common);
struct sh_dmae_pdata *pdata = shdev->pdata;
- struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
+ const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
u16 __iomem *addr = shdev->dmars + chan_pdata->dmars / sizeof(u16);
int shift = chan_pdata->dmars_bit;
@@ -265,8 +265,8 @@ static struct sh_desc *sh_dmae_get_desc(struct sh_dmae_chan *sh_chan)
return NULL;
}
-static struct sh_dmae_slave_config *sh_dmae_find_slave(
- struct sh_dmae_chan *sh_chan, enum sh_dmae_slave_chan_id slave_id)
+static const struct sh_dmae_slave_config *sh_dmae_find_slave(
+ struct sh_dmae_chan *sh_chan, struct sh_dmae_slave *param)
{
struct dma_device *dma_dev = sh_chan->common.device;
struct sh_dmae_device *shdev = container_of(dma_dev,
@@ -274,11 +274,11 @@ static struct sh_dmae_slave_config *sh_dmae_find_slave(
struct sh_dmae_pdata *pdata = shdev->pdata;
int i;
- if ((unsigned)slave_id >= SHDMA_SLAVE_NUMBER)
+ if (param->slave_id >= SH_DMA_SLAVE_NUMBER)
return NULL;
for (i = 0; i < pdata->slave_num; i++)
- if (pdata->slave[i].slave_id == slave_id)
+ if (pdata->slave[i].slave_id == param->slave_id)
return pdata->slave + i;
return NULL;
@@ -289,6 +289,7 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
struct sh_dmae_chan *sh_chan = to_sh_chan(chan);
struct sh_desc *desc;
struct sh_dmae_slave *param = chan->private;
+ int ret;
pm_runtime_get_sync(sh_chan->dev);
@@ -297,14 +298,18 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
* never runs concurrently with itself or free_chan_resources.
*/
if (param) {
- struct sh_dmae_slave_config *cfg;
+ const struct sh_dmae_slave_config *cfg;
- cfg = sh_dmae_find_slave(sh_chan, param->slave_id);
- if (!cfg)
- return -EINVAL;
+ cfg = sh_dmae_find_slave(sh_chan, param);
+ if (!cfg) {
+ ret = -EINVAL;
+ goto efindslave;
+ }
- if (test_and_set_bit(param->slave_id, sh_dmae_slave_used))
- return -EBUSY;
+ if (test_and_set_bit(param->slave_id, sh_dmae_slave_used)) {
+ ret = -EBUSY;
+ goto etestused;
+ }
param->config = cfg;
@@ -333,10 +338,20 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
}
spin_unlock_bh(&sh_chan->desc_lock);
- if (!sh_chan->descs_allocated)
- pm_runtime_put(sh_chan->dev);
+ if (!sh_chan->descs_allocated) {
+ ret = -ENOMEM;
+ goto edescalloc;
+ }
return sh_chan->descs_allocated;
+
+edescalloc:
+ if (param)
+ clear_bit(param->slave_id, sh_dmae_slave_used);
+etestused:
+efindslave:
+ pm_runtime_put(sh_chan->dev);
+ return ret;
}
/*
@@ -558,12 +573,14 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
{
struct sh_dmae_slave *param;
struct sh_dmae_chan *sh_chan;
+ dma_addr_t slave_addr;
if (!chan)
return NULL;
sh_chan = to_sh_chan(chan);
param = chan->private;
+ slave_addr = param->config->addr;
/* Someone calling slave DMA on a public channel? */
if (!param || !sg_len) {
@@ -576,7 +593,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
* if (param != NULL), this is a successfully requested slave channel,
* therefore param->config != NULL too.
*/
- return sh_dmae_prep_sg(sh_chan, sgl, sg_len, &param->config->addr,
+ return sh_dmae_prep_sg(sh_chan, sgl, sg_len, &slave_addr,
direction, flags);
}
@@ -857,7 +874,7 @@ static int __devinit sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id,
int irq, unsigned long flags)
{
int err;
- struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id];
+ const struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id];
struct platform_device *pdev = to_platform_device(shdev->common.dev);
struct sh_dmae_chan *new_sh_chan;
diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 153609a1e96..4021275a0a4 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -17,8 +17,8 @@
#include <linux/interrupt.h>
#include <linux/list.h>
-#include <asm/dmaengine.h>
-
+#define SH_DMAC_MAX_CHANNELS 6
+#define SH_DMA_SLAVE_NUMBER 256
#define SH_DMA_TCR_MAX 0x00FFFFFF /* 16MB */
struct device;
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 3ebc61067e5..75fcf1ac8bb 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -1359,3 +1359,5 @@ module_exit(txx9dmac_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("TXx9 DMA Controller driver");
MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
+MODULE_ALIAS("platform:txx9dmac");
+MODULE_ALIAS("platform:txx9dmac-chan");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-24 12:38:50 +0000