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Diffstat (limited to 'arch/powerpc/sysdev/fsl_rio.c')
-rw-r--r--arch/powerpc/sysdev/fsl_rio.c53
1 files changed, 33 insertions, 20 deletions
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 1c41c51f22cb..5011ffea4e4b 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -71,6 +71,8 @@
#define RIWAR_WRTYP_ALLOC 0x00006000
#define RIWAR_SIZE_MASK 0x0000003F
+static DEFINE_SPINLOCK(fsl_rio_config_lock);
+
#define __fsl_read_rio_config(x, addr, err, op) \
__asm__ __volatile__( \
"1: "op" %1,0(%2)\n" \
@@ -184,6 +186,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 *val)
{
struct rio_priv *priv = mport->priv;
+ unsigned long flags;
u8 *data;
u32 rval, err = 0;
@@ -197,6 +200,8 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
return -EINVAL;
+ spin_lock_irqsave(&fsl_rio_config_lock, flags);
+
out_be32(&priv->maint_atmu_regs->rowtar,
(destid << 22) | (hopcount << 12) | (offset >> 12));
out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
@@ -213,6 +218,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
__fsl_read_rio_config(rval, data, err, "lwz");
break;
default:
+ spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
return -EINVAL;
}
@@ -221,6 +227,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
err, destid, hopcount, offset);
}
+ spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
*val = rval;
return err;
@@ -244,7 +251,10 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 val)
{
struct rio_priv *priv = mport->priv;
+ unsigned long flags;
u8 *data;
+ int ret = 0;
+
pr_debug
("fsl_rio_config_write:"
" index %d destid %d hopcount %d offset %8.8x len %d val %8.8x\n",
@@ -255,6 +265,8 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
return -EINVAL;
+ spin_lock_irqsave(&fsl_rio_config_lock, flags);
+
out_be32(&priv->maint_atmu_regs->rowtar,
(destid << 22) | (hopcount << 12) | (offset >> 12));
out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
@@ -271,10 +283,11 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
out_be32((u32 *) data, val);
break;
default:
- return -EINVAL;
+ ret = -EINVAL;
}
+ spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
- return 0;
+ return ret;
}
static void fsl_rio_inbound_mem_init(struct rio_priv *priv)
@@ -450,12 +463,12 @@ int fsl_rio_setup(struct platform_device *dev)
rc = of_address_to_resource(dev->dev.of_node, 0, &regs);
if (rc) {
- dev_err(&dev->dev, "Can't get %s property 'reg'\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
+ dev->dev.of_node);
return -EFAULT;
}
- dev_info(&dev->dev, "Of-device full name %s\n",
- dev->dev.of_node->full_name);
+ dev_info(&dev->dev, "Of-device full name %pOF\n",
+ dev->dev.of_node);
dev_info(&dev->dev, "Regs: %pR\n", &regs);
rio_regs_win = ioremap(regs.start, resource_size(&regs));
@@ -494,8 +507,8 @@ int fsl_rio_setup(struct platform_device *dev)
}
rc = of_address_to_resource(rmu_node, 0, &rmu_regs);
if (rc) {
- dev_err(&dev->dev, "Can't get %s property 'reg'\n",
- rmu_node->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
+ rmu_node);
goto err_rmu;
}
rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
@@ -529,8 +542,8 @@ int fsl_rio_setup(struct platform_device *dev)
aw = of_n_addr_cells(np);
dt_range = of_get_property(np, "reg", &rlen);
if (!dt_range) {
- pr_err("%s: unable to find 'reg' property\n",
- np->full_name);
+ pr_err("%pOF: unable to find 'reg' property\n",
+ np);
rc = -ENOMEM;
goto err_pw;
}
@@ -557,8 +570,8 @@ int fsl_rio_setup(struct platform_device *dev)
aw = of_n_addr_cells(np);
dt_range = of_get_property(np, "reg", &rlen);
if (!dt_range) {
- pr_err("%s: unable to find 'reg' property\n",
- np->full_name);
+ pr_err("%pOF: unable to find 'reg' property\n",
+ np);
rc = -ENOMEM;
goto err;
}
@@ -569,15 +582,15 @@ int fsl_rio_setup(struct platform_device *dev)
for_each_child_of_node(dev->dev.of_node, np) {
port_index = of_get_property(np, "cell-index", NULL);
if (!port_index) {
- dev_err(&dev->dev, "Can't get %s property 'cell-index'\n",
- np->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'cell-index'\n",
+ np);
continue;
}
dt_range = of_get_property(np, "ranges", &rlen);
if (!dt_range) {
- dev_err(&dev->dev, "Can't get %s property 'ranges'\n",
- np->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'ranges'\n",
+ np);
continue;
}
@@ -598,8 +611,8 @@ int fsl_rio_setup(struct platform_device *dev)
range_start = of_read_number(dt_range + aw, paw);
range_size = of_read_number(dt_range + aw + paw, sw);
- dev_info(&dev->dev, "%s: LAW start 0x%016llx, size 0x%016llx.\n",
- np->full_name, range_start, range_size);
+ dev_info(&dev->dev, "%pOF: LAW start 0x%016llx, size 0x%016llx.\n",
+ np, range_start, range_size);
port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
if (!port)
@@ -757,8 +770,8 @@ err_rio_regs:
*/
static int fsl_of_rio_rpn_probe(struct platform_device *dev)
{
- printk(KERN_INFO "Setting up RapidIO peer-to-peer network %s\n",
- dev->dev.of_node->full_name);
+ printk(KERN_INFO "Setting up RapidIO peer-to-peer network %pOF\n",
+ dev->dev.of_node);
return fsl_rio_setup(dev);
};
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-05-15 07:54:58 +0200