diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 71 |
1 files changed, 69 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index d019b081df9d..f10b9ec8c1f5 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -9,8 +9,9 @@ * 2 of the License, or (at your option) any later version. */ -#undef DEBUG +#define pr_fmt(fmt) "opal: " fmt +#include <linux/printk.h> #include <linux/types.h> #include <linux/of.h> #include <linux/of_fdt.h> @@ -50,7 +51,6 @@ static int mc_recoverable_range_len; struct device_node *opal_node; static DEFINE_SPINLOCK(opal_write_lock); -extern u64 opal_mc_secondary_handler[]; static unsigned int *opal_irqs; static unsigned int opal_irq_count; static ATOMIC_NOTIFIER_HEAD(opal_notifier_head); @@ -626,6 +626,39 @@ static int opal_sysfs_init(void) return 0; } +static ssize_t symbol_map_read(struct file *fp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + return memory_read_from_buffer(buf, count, &off, bin_attr->private, + bin_attr->size); +} + +static BIN_ATTR_RO(symbol_map, 0); + +static void opal_export_symmap(void) +{ + const __be64 *syms; + unsigned int size; + struct device_node *fw; + int rc; + + fw = of_find_node_by_path("/ibm,opal/firmware"); + if (!fw) + return; + syms = of_get_property(fw, "symbol-map", &size); + if (!syms || size != 2 * sizeof(__be64)) + return; + + /* Setup attributes */ + bin_attr_symbol_map.private = __va(be64_to_cpu(syms[0])); + bin_attr_symbol_map.size = be64_to_cpu(syms[1]); + + rc = sysfs_create_bin_file(opal_kobj, &bin_attr_symbol_map); + if (rc) + pr_warn("Error %d creating OPAL symbols file\n", rc); +} + static void __init opal_dump_region_init(void) { void *addr; @@ -644,6 +677,24 @@ static void __init opal_dump_region_init(void) pr_warn("DUMP: Failed to register kernel log buffer. " "rc = %d\n", rc); } + +static void opal_ipmi_init(struct device_node *opal_node) +{ + struct device_node *np; + + for_each_child_of_node(opal_node, np) + if (of_device_is_compatible(np, "ibm,opal-ipmi")) + of_platform_device_create(np, NULL, NULL); +} + +static void opal_i2c_create_devs(void) +{ + struct device_node *np; + + for_each_compatible_node(np, NULL, "ibm,opal-i2c") + of_platform_device_create(np, NULL, NULL); +} + static int __init opal_init(void) { struct device_node *np, *consoles; @@ -670,6 +721,9 @@ static int __init opal_init(void) of_node_put(consoles); } + /* Create i2c platform devices */ + opal_i2c_create_devs(); + /* Find all OPAL interrupts and request them */ irqs = of_get_property(opal_node, "opal-interrupts", &irqlen); pr_debug("opal: Found %d interrupts reserved for OPAL\n", @@ -693,6 +747,8 @@ static int __init opal_init(void) /* Create "opal" kobject under /sys/firmware */ rc = opal_sysfs_init(); if (rc == 0) { + /* Export symbol map to userspace */ + opal_export_symmap(); /* Setup dump region interface */ opal_dump_region_init(); /* Setup error log interface */ @@ -707,6 +763,8 @@ static int __init opal_init(void) opal_msglog_init(); } + opal_ipmi_init(opal_node); + return 0; } machine_subsys_initcall(powernv, opal_init); @@ -742,6 +800,8 @@ void opal_shutdown(void) /* Export this so that test modules can use it */ EXPORT_SYMBOL_GPL(opal_invalid_call); +EXPORT_SYMBOL_GPL(opal_ipmi_send); +EXPORT_SYMBOL_GPL(opal_ipmi_recv); /* Convert a region of vmalloc memory to an opal sg list */ struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, @@ -805,3 +865,10 @@ void opal_free_sg_list(struct opal_sg_list *sg) sg = NULL; } } + +EXPORT_SYMBOL_GPL(opal_poll_events); +EXPORT_SYMBOL_GPL(opal_rtc_read); +EXPORT_SYMBOL_GPL(opal_rtc_write); +EXPORT_SYMBOL_GPL(opal_tpo_read); +EXPORT_SYMBOL_GPL(opal_tpo_write); +EXPORT_SYMBOL_GPL(opal_i2c_request); |