diff options
author | Bharata B Rao <bharata@linux.vnet.ibm.com> | 2014-09-17 00:15:45 +0400 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2014-10-15 04:25:59 +0400 |
commit | d6f1e7abdb95a7ea031e7604829e4b5514d7e2c1 (patch) | |
tree | db670fc5c988288ce66ccea21343105a7c35c361 /arch/powerpc/platforms/pseries | |
parent | 4ff52b4dedcd4226cf1f2817eb14e8d733790eae (diff) | |
download | linux-d6f1e7abdb95a7ea031e7604829e4b5514d7e2c1.tar.xz |
powerpc/pseries: Make CPU hotplug path endian safe
- ibm,rtas-configure-connector should treat the RTAS data as big endian.
- Treat ibm,ppc-interrupt-server#s as big-endian when setting
smp_processor_id during hotplug.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/pseries')
-rw-r--r-- | arch/powerpc/platforms/pseries/dlpar.c | 22 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/hotplug-cpu.c | 4 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/pseries.h | 3 |
3 files changed, 15 insertions, 14 deletions
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index fdf01b660d59..6ad83bd11fe2 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -25,11 +25,11 @@ #include <asm/rtas.h> struct cc_workarea { - u32 drc_index; - u32 zero; - u32 name_offset; - u32 prop_length; - u32 prop_offset; + __be32 drc_index; + __be32 zero; + __be32 name_offset; + __be32 prop_length; + __be32 prop_offset; }; void dlpar_free_cc_property(struct property *prop) @@ -49,11 +49,11 @@ static struct property *dlpar_parse_cc_property(struct cc_workarea *ccwa) if (!prop) return NULL; - name = (char *)ccwa + ccwa->name_offset; + name = (char *)ccwa + be32_to_cpu(ccwa->name_offset); prop->name = kstrdup(name, GFP_KERNEL); - prop->length = ccwa->prop_length; - value = (char *)ccwa + ccwa->prop_offset; + prop->length = be32_to_cpu(ccwa->prop_length); + value = (char *)ccwa + be32_to_cpu(ccwa->prop_offset); prop->value = kmemdup(value, prop->length, GFP_KERNEL); if (!prop->value) { dlpar_free_cc_property(prop); @@ -79,7 +79,7 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa, if (!dn) return NULL; - name = (char *)ccwa + ccwa->name_offset; + name = (char *)ccwa + be32_to_cpu(ccwa->name_offset); dn->full_name = kasprintf(GFP_KERNEL, "%s/%s", path, name); if (!dn->full_name) { kfree(dn); @@ -126,7 +126,7 @@ void dlpar_free_cc_nodes(struct device_node *dn) #define CALL_AGAIN -2 #define ERR_CFG_USE -9003 -struct device_node *dlpar_configure_connector(u32 drc_index, +struct device_node *dlpar_configure_connector(__be32 drc_index, struct device_node *parent) { struct device_node *dn; @@ -414,7 +414,7 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count) if (!parent) return -ENODEV; - dn = dlpar_configure_connector(drc_index, parent); + dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent); if (!dn) return -EINVAL; diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index b174fa751d26..5c375f93c669 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -247,7 +247,7 @@ static int pseries_add_processor(struct device_node *np) unsigned int cpu; cpumask_var_t candidate_mask, tmp; int err = -ENOSPC, len, nthreads, i; - const u32 *intserv; + const __be32 *intserv; intserv = of_get_property(np, "ibm,ppc-interrupt-server#s", &len); if (!intserv) @@ -293,7 +293,7 @@ static int pseries_add_processor(struct device_node *np) for_each_cpu(cpu, tmp) { BUG_ON(cpu_present(cpu)); set_cpu_present(cpu, true); - set_hard_smp_processor_id(cpu, *intserv++); + set_hard_smp_processor_id(cpu, be32_to_cpu(*intserv++)); } err = 0; out_unlock: diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h index 361add62abf1..1796c5438cc6 100644 --- a/arch/powerpc/platforms/pseries/pseries.h +++ b/arch/powerpc/platforms/pseries/pseries.h @@ -56,7 +56,8 @@ extern void hvc_vio_init_early(void); /* Dynamic logical Partitioning/Mobility */ extern void dlpar_free_cc_nodes(struct device_node *); extern void dlpar_free_cc_property(struct property *); -extern struct device_node *dlpar_configure_connector(u32, struct device_node *); +extern struct device_node *dlpar_configure_connector(__be32, + struct device_node *); extern int dlpar_attach_node(struct device_node *); extern int dlpar_detach_node(struct device_node *); |