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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-06 10:49:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-06 10:49:42 -0700
commit39eda2aba6be642b71f2e0ad623dcb09fd9d79cf (patch)
treecd0c8f547847641af73e38aab2478f3119dee490 /arch/powerpc/kernel/vio.c
parent2e515bf096c245ba87f20ab4b4ea20f911afaeda (diff)
parent9f24b0c9ef9b6b1292579c9e2cd7ff07ddc372b7 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt: "Here's the powerpc batch for this merge window. Some of the highlights are: - A bunch of endian fixes ! We don't have full LE support yet in that release but this contains a lot of fixes all over arch/powerpc to use the proper accessors, call the firmware with the right endian mode, etc... - A few updates to our "powernv" platform (non-virtualized, the one to run KVM on), among other, support for bridging the P8 LPC bus for UARTs, support and some EEH fixes. - Some mpc51xx clock API cleanups in preparation for a clock API overhaul - A pile of cleanups of our old math emulation code, including better support for using it to emulate optional FP instructions on embedded chips that otherwise have a HW FPU. - Some infrastructure in selftest, for powerpc now, but could be generalized, initially used by some tests for our perf instruction counting code. - A pile of fixes for hotplug on pseries (that was seriously bitrotting) - The usual slew of freescale embedded updates, new boards, 64-bit hiberation support, e6500 core PMU support, etc..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits) powerpc: Correct FSCR bit definitions powerpc/xmon: Fix printing of set of CPUs in xmon powerpc/pseries: Move lparcfg.c to platforms/pseries powerpc/powernv: Return secondary CPUs to firmware on kexec powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32 powerpc: Cleanup handling of the DSCR bit in the FSCR register powerpc/pseries: Child nodes are not detached by dlpar_detach_node powerpc/pseries: Add mising of_node_put in delete_dt_node powerpc/pseries: Make dlpar_configure_connector parent node aware powerpc/pseries: Do all node initialization in dlpar_parse_cc_node powerpc/pseries: Fix parsing of initial node path in update_dt_node powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header powerpc/pseries: Fix over writing of rtas return code in update_dt_node powerpc/pseries: Fix creation of loop in device node property list powerpc: Skip emulating & leave interrupts off for kernel program checks powerpc: Add more exception trampolines for hypervisor exceptions powerpc: Fix location and rename exception trampolines powerpc: Add more trap names to xmon powerpc/pseries: Add a warning in the case of cross-cpu VPA registration powerpc: Update the 00-Index in Documentation/powerpc ...
Diffstat (limited to 'arch/powerpc/kernel/vio.c')
-rw-r--r--arch/powerpc/kernel/vio.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 536016d792ba..78a350670de3 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1153,7 +1153,7 @@ EXPORT_SYMBOL(vio_h_cop_sync);
static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
{
- const unsigned char *dma_window;
+ const __be32 *dma_window;
struct iommu_table *tbl;
unsigned long offset, size;
@@ -1312,8 +1312,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
{
struct vio_dev *viodev;
struct device_node *parent_node;
- const unsigned int *unit_address;
- const unsigned int *pfo_resid = NULL;
+ const __be32 *prop;
enum vio_dev_family family;
const char *of_node_name = of_node->name ? of_node->name : "<unknown>";
@@ -1360,6 +1359,8 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
/* we need the 'device_type' property, in order to match with drivers */
viodev->family = family;
if (viodev->family == VDEVICE) {
+ unsigned int unit_address;
+
if (of_node->type != NULL)
viodev->type = of_node->type;
else {
@@ -1368,24 +1369,24 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
goto out;
}
- unit_address = of_get_property(of_node, "reg", NULL);
- if (unit_address == NULL) {
+ prop = of_get_property(of_node, "reg", NULL);
+ if (prop == NULL) {
pr_warn("%s: node %s missing 'reg'\n",
__func__, of_node_name);
goto out;
}
- dev_set_name(&viodev->dev, "%x", *unit_address);
+ unit_address = of_read_number(prop, 1);
+ dev_set_name(&viodev->dev, "%x", unit_address);
viodev->irq = irq_of_parse_and_map(of_node, 0);
- viodev->unit_address = *unit_address;
+ viodev->unit_address = unit_address;
} else {
/* PFO devices need their resource_id for submitting COP_OPs
* This is an optional field for devices, but is required when
* performing synchronous ops */
- pfo_resid = of_get_property(of_node, "ibm,resource-id", NULL);
- if (pfo_resid != NULL)
- viodev->resource_id = *pfo_resid;
+ prop = of_get_property(of_node, "ibm,resource-id", NULL);
+ if (prop != NULL)
+ viodev->resource_id = of_read_number(prop, 1);
- unit_address = NULL;
dev_set_name(&viodev->dev, "%s", of_node_name);
viodev->type = of_node_name;
viodev->irq = 0;
@@ -1622,7 +1623,6 @@ static struct vio_dev *vio_find_name(const char *name)
*/
struct vio_dev *vio_find_node(struct device_node *vnode)
{
- const uint32_t *unit_address;
char kobj_name[20];
struct device_node *vnode_parent;
const char *dev_type;
@@ -1638,10 +1638,13 @@ struct vio_dev *vio_find_node(struct device_node *vnode)
/* construct the kobject name from the device node */
if (!strcmp(dev_type, "vdevice")) {
- unit_address = of_get_property(vnode, "reg", NULL);
- if (!unit_address)
+ const __be32 *prop;
+
+ prop = of_get_property(vnode, "reg", NULL);
+ if (!prop)
return NULL;
- snprintf(kobj_name, sizeof(kobj_name), "%x", *unit_address);
+ snprintf(kobj_name, sizeof(kobj_name), "%x",
+ (uint32_t)of_read_number(prop, 1));
} else if (!strcmp(dev_type, "ibm,platform-facilities"))
snprintf(kobj_name, sizeof(kobj_name), "%s", vnode->name);
else