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-rw-r--r--arch/arm/common/amba.c2
-rw-r--r--arch/arm/common/dmabounce.c165
-rw-r--r--arch/arm/common/locomo.c10
-rw-r--r--arch/arm/common/sa1111.c11
-rw-r--r--arch/arm/common/scoop.c27
5 files changed, 106 insertions, 109 deletions
diff --git a/arch/arm/common/amba.c b/arch/arm/common/amba.c
index c6beb751f2a..e1013112c35 100644
--- a/arch/arm/common/amba.c
+++ b/arch/arm/common/amba.c
@@ -10,6 +10,8 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
#include <asm/io.h>
#include <asm/irq.h>
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index cbf2165476b..ad6c89a555b 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -33,8 +33,8 @@
#include <asm/cacheflush.h>
#undef DEBUG
-
#undef STATS
+
#ifdef STATS
#define DO_STATS(X) do { X ; } while (0)
#else
@@ -52,26 +52,31 @@ struct safe_buffer {
int direction;
/* safe buffer info */
- struct dma_pool *pool;
+ struct dmabounce_pool *pool;
void *safe;
dma_addr_t safe_dma_addr;
};
+struct dmabounce_pool {
+ unsigned long size;
+ struct dma_pool *pool;
+#ifdef STATS
+ unsigned long allocs;
+#endif
+};
+
struct dmabounce_device_info {
struct list_head node;
struct device *dev;
- struct dma_pool *small_buffer_pool;
- struct dma_pool *large_buffer_pool;
struct list_head safe_buffers;
- unsigned long small_buffer_size, large_buffer_size;
#ifdef STATS
- unsigned long sbp_allocs;
- unsigned long lbp_allocs;
unsigned long total_allocs;
unsigned long map_op_count;
unsigned long bounce_count;
#endif
+ struct dmabounce_pool small;
+ struct dmabounce_pool large;
};
static LIST_HEAD(dmabounce_devs);
@@ -82,9 +87,9 @@ static void print_alloc_stats(struct dmabounce_device_info *device_info)
printk(KERN_INFO
"%s: dmabounce: sbp: %lu, lbp: %lu, other: %lu, total: %lu\n",
device_info->dev->bus_id,
- device_info->sbp_allocs, device_info->lbp_allocs,
- device_info->total_allocs - device_info->sbp_allocs -
- device_info->lbp_allocs,
+ device_info->small.allocs, device_info->large.allocs,
+ device_info->total_allocs - device_info->small.allocs -
+ device_info->large.allocs,
device_info->total_allocs);
}
#endif
@@ -106,18 +111,22 @@ find_dmabounce_dev(struct device *dev)
/* allocate a 'safe' buffer and keep track of it */
static inline struct safe_buffer *
alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
- size_t size, enum dma_data_direction dir)
+ size_t size, enum dma_data_direction dir)
{
struct safe_buffer *buf;
- struct dma_pool *pool;
+ struct dmabounce_pool *pool;
struct device *dev = device_info->dev;
- void *safe;
- dma_addr_t safe_dma_addr;
dev_dbg(dev, "%s(ptr=%p, size=%d, dir=%d)\n",
__func__, ptr, size, dir);
- DO_STATS ( device_info->total_allocs++ );
+ if (size <= device_info->small.size) {
+ pool = &device_info->small;
+ } else if (size <= device_info->large.size) {
+ pool = &device_info->large;
+ } else {
+ pool = NULL;
+ }
buf = kmalloc(sizeof(struct safe_buffer), GFP_ATOMIC);
if (buf == NULL) {
@@ -125,41 +134,35 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
return NULL;
}
- if (size <= device_info->small_buffer_size) {
- pool = device_info->small_buffer_pool;
- safe = dma_pool_alloc(pool, GFP_ATOMIC, &safe_dma_addr);
-
- DO_STATS ( device_info->sbp_allocs++ );
- } else if (size <= device_info->large_buffer_size) {
- pool = device_info->large_buffer_pool;
- safe = dma_pool_alloc(pool, GFP_ATOMIC, &safe_dma_addr);
+ buf->ptr = ptr;
+ buf->size = size;
+ buf->direction = dir;
+ buf->pool = pool;
- DO_STATS ( device_info->lbp_allocs++ );
+ if (pool) {
+ buf->safe = dma_pool_alloc(pool->pool, GFP_ATOMIC,
+ &buf->safe_dma_addr);
} else {
- pool = NULL;
- safe = dma_alloc_coherent(dev, size, &safe_dma_addr, GFP_ATOMIC);
+ buf->safe = dma_alloc_coherent(dev, size, &buf->safe_dma_addr,
+ GFP_ATOMIC);
}
- if (safe == NULL) {
- dev_warn(device_info->dev,
- "%s: could not alloc dma memory (size=%d)\n",
- __func__, size);
+ if (buf->safe == NULL) {
+ dev_warn(dev,
+ "%s: could not alloc dma memory (size=%d)\n",
+ __func__, size);
kfree(buf);
return NULL;
}
#ifdef STATS
+ if (pool)
+ pool->allocs++;
+ device_info->total_allocs++;
if (device_info->total_allocs % 1000 == 0)
print_alloc_stats(device_info);
#endif
- buf->ptr = ptr;
- buf->size = size;
- buf->direction = dir;
- buf->pool = pool;
- buf->safe = safe;
- buf->safe_dma_addr = safe_dma_addr;
-
list_add(&buf->node, &device_info->safe_buffers);
return buf;
@@ -186,7 +189,7 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
list_del(&buf->node);
if (buf->pool)
- dma_pool_free(buf->pool, buf->safe, buf->safe_dma_addr);
+ dma_pool_free(buf->pool->pool, buf->safe, buf->safe_dma_addr);
else
dma_free_coherent(device_info->dev, buf->size, buf->safe,
buf->safe_dma_addr);
@@ -197,12 +200,10 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
/* ************************************************** */
#ifdef STATS
-
static void print_map_stats(struct dmabounce_device_info *device_info)
{
- printk(KERN_INFO
- "%s: dmabounce: map_op_count=%lu, bounce_count=%lu\n",
- device_info->dev->bus_id,
+ dev_info(device_info->dev,
+ "dmabounce: map_op_count=%lu, bounce_count=%lu\n",
device_info->map_op_count, device_info->bounce_count);
}
#endif
@@ -258,13 +259,13 @@ map_single(struct device *dev, void *ptr, size_t size,
__func__, ptr, buf->safe, size);
memcpy(buf->safe, ptr, size);
}
- consistent_sync(buf->safe, size, dir);
+ ptr = buf->safe;
dma_addr = buf->safe_dma_addr;
- } else {
- consistent_sync(ptr, size, dir);
}
+ consistent_sync(ptr, size, dir);
+
return dma_addr;
}
@@ -278,7 +279,7 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
/*
* Trying to unmap an invalid mapping
*/
- if (dma_addr == ~0) {
+ if (dma_mapping_error(dma_addr)) {
dev_err(dev, "Trying to unmap invalid mapping\n");
return;
}
@@ -570,11 +571,25 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
local_irq_restore(flags);
}
+static int
+dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, const char *name,
+ unsigned long size)
+{
+ pool->size = size;
+ DO_STATS(pool->allocs = 0);
+ pool->pool = dma_pool_create(name, dev, size,
+ 0 /* byte alignment */,
+ 0 /* no page-crossing issues */);
+
+ return pool->pool ? 0 : -ENOMEM;
+}
+
int
dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
unsigned long large_buffer_size)
{
struct dmabounce_device_info *device_info;
+ int ret;
device_info = kmalloc(sizeof(struct dmabounce_device_info), GFP_ATOMIC);
if (!device_info) {
@@ -584,45 +599,31 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
return -ENOMEM;
}
- device_info->small_buffer_pool =
- dma_pool_create("small_dmabounce_pool",
- dev,
- small_buffer_size,
- 0 /* byte alignment */,
- 0 /* no page-crossing issues */);
- if (!device_info->small_buffer_pool) {
- printk(KERN_ERR
- "dmabounce: could not allocate small DMA pool for %s\n",
- dev->bus_id);
- kfree(device_info);
- return -ENOMEM;
+ ret = dmabounce_init_pool(&device_info->small, dev,
+ "small_dmabounce_pool", small_buffer_size);
+ if (ret) {
+ dev_err(dev,
+ "dmabounce: could not allocate DMA pool for %ld byte objects\n",
+ small_buffer_size);
+ goto err_free;
}
if (large_buffer_size) {
- device_info->large_buffer_pool =
- dma_pool_create("large_dmabounce_pool",
- dev,
- large_buffer_size,
- 0 /* byte alignment */,
- 0 /* no page-crossing issues */);
- if (!device_info->large_buffer_pool) {
- printk(KERN_ERR
- "dmabounce: could not allocate large DMA pool for %s\n",
- dev->bus_id);
- dma_pool_destroy(device_info->small_buffer_pool);
-
- return -ENOMEM;
+ ret = dmabounce_init_pool(&device_info->large, dev,
+ "large_dmabounce_pool",
+ large_buffer_size);
+ if (ret) {
+ dev_err(dev,
+ "dmabounce: could not allocate DMA pool for %ld byte objects\n",
+ large_buffer_size);
+ goto err_destroy;
}
}
device_info->dev = dev;
- device_info->small_buffer_size = small_buffer_size;
- device_info->large_buffer_size = large_buffer_size;
INIT_LIST_HEAD(&device_info->safe_buffers);
#ifdef STATS
- device_info->sbp_allocs = 0;
- device_info->lbp_allocs = 0;
device_info->total_allocs = 0;
device_info->map_op_count = 0;
device_info->bounce_count = 0;
@@ -634,6 +635,12 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
dev->bus_id, dev->bus->name);
return 0;
+
+ err_destroy:
+ dma_pool_destroy(device_info->small.pool);
+ err_free:
+ kfree(device_info);
+ return ret;
}
void
@@ -655,10 +662,10 @@ dmabounce_unregister_dev(struct device *dev)
BUG();
}
- if (device_info->small_buffer_pool)
- dma_pool_destroy(device_info->small_buffer_pool);
- if (device_info->large_buffer_pool)
- dma_pool_destroy(device_info->large_buffer_pool);
+ if (device_info->small.pool)
+ dma_pool_destroy(device_info->small.pool);
+ if (device_info->large.pool)
+ dma_pool_destroy(device_info->large.pool);
#ifdef STATS
print_alloc_stats(device_info);
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index e8053d16829..5cdb4122f05 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -550,15 +550,12 @@ struct locomo_save_data {
u16 LCM_SPIMD;
};
-static int locomo_suspend(struct device *dev, pm_message_t state, u32 level)
+static int locomo_suspend(struct device *dev, pm_message_t state)
{
struct locomo *lchip = dev_get_drvdata(dev);
struct locomo_save_data *save;
unsigned long flags;
- if (level != SUSPEND_DISABLE)
- return 0;
-
save = kmalloc(sizeof(struct locomo_save_data), GFP_KERNEL);
if (!save)
return -ENOMEM;
@@ -597,16 +594,13 @@ static int locomo_suspend(struct device *dev, pm_message_t state, u32 level)
return 0;
}
-static int locomo_resume(struct device *dev, u32 level)
+static int locomo_resume(struct device *dev)
{
struct locomo *lchip = dev_get_drvdata(dev);
struct locomo_save_data *save;
unsigned long r;
unsigned long flags;
- if (level != RESUME_ENABLE)
- return 0;
-
save = (struct locomo_save_data *) dev->power.saved_state;
if (!save)
return 0;
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 1a47fbf9cbb..21e2a518ad3 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -801,7 +801,7 @@ struct sa1111_save_data {
#ifdef CONFIG_PM
-static int sa1111_suspend(struct device *dev, pm_message_t state, u32 level)
+static int sa1111_suspend(struct device *dev, pm_message_t state)
{
struct sa1111 *sachip = dev_get_drvdata(dev);
struct sa1111_save_data *save;
@@ -809,9 +809,6 @@ static int sa1111_suspend(struct device *dev, pm_message_t state, u32 level)
unsigned int val;
void __iomem *base;
- if (level != SUSPEND_DISABLE)
- return 0;
-
save = kmalloc(sizeof(struct sa1111_save_data), GFP_KERNEL);
if (!save)
return -ENOMEM;
@@ -856,23 +853,19 @@ static int sa1111_suspend(struct device *dev, pm_message_t state, u32 level)
/*
* sa1111_resume - Restore the SA1111 device state.
* @dev: device to restore
- * @level: resume level
*
* Restore the general state of the SA1111; clock control and
* interrupt controller. Other parts of the SA1111 must be
* restored by their respective drivers, and must be called
* via LDM after this function.
*/
-static int sa1111_resume(struct device *dev, u32 level)
+static int sa1111_resume(struct device *dev)
{
struct sa1111 *sachip = dev_get_drvdata(dev);
struct sa1111_save_data *save;
unsigned long flags, id;
void __iomem *base;
- if (level != RESUME_ENABLE)
- return 0;
-
save = (struct sa1111_save_data *)dev->power.saved_state;
if (!save)
return 0;
diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index 9e5245c702d..4af0cf5f3bf 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -12,6 +12,9 @@
*/
#include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
#include <asm/io.h>
#include <asm/hardware/scoop.h>
@@ -102,26 +105,24 @@ static void check_scoop_reg(struct scoop_dev *sdev)
}
#ifdef CONFIG_PM
-static int scoop_suspend(struct device *dev, pm_message_t state, uint32_t level)
+static int scoop_suspend(struct device *dev, pm_message_t state)
{
- if (level == SUSPEND_POWER_DOWN) {
- struct scoop_dev *sdev = dev_get_drvdata(dev);
+ struct scoop_dev *sdev = dev_get_drvdata(dev);
+
+ check_scoop_reg(sdev);
+ sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
+ SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
- check_scoop_reg(sdev);
- sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
- SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
- }
return 0;
}
-static int scoop_resume(struct device *dev, uint32_t level)
+static int scoop_resume(struct device *dev)
{
- if (level == RESUME_POWER_ON) {
- struct scoop_dev *sdev = dev_get_drvdata(dev);
+ struct scoop_dev *sdev = dev_get_drvdata(dev);
+
+ check_scoop_reg(sdev);
+ SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
- check_scoop_reg(sdev);
- SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
- }
return 0;
}
#else
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 15:39:34 +0000