diff options
| author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2013-08-27 15:09:52 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-30 16:09:34 +1100 |
| commit | 6f68b5e2c6c04e9cf0e3074f884da36957ce9aae (patch) | |
| tree | bb2f83cfc00a044d5c4f3926643a1000c4007799 /arch | |
| parent | ef1313deafb7baa6d3382044e962d5ad5e8c8dd6 (diff) | |
powerpc/powernv: Create opal sysfs directory
Create /sys/firmware/opal directory. We wil use this
interface to fetch opal error logs, firmware update, etc.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 19 |
2 files changed, 22 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 4cc33ba1edd..ee0efd2f2ab 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -601,6 +601,9 @@ typedef struct oppanel_line { uint64_t line_len; } oppanel_line_t; +/* /sys/firmware/opal */ +extern struct kobject *opal_kobj; + /* API functions */ int64_t opal_console_write(int64_t term_number, __be64 *length, const uint8_t *buffer); diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 09336f0c54c..37f06580709 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -17,11 +17,15 @@ #include <linux/interrupt.h> #include <linux/notifier.h> #include <linux/slab.h> +#include <linux/kobject.h> #include <asm/opal.h> #include <asm/firmware.h> #include "powernv.h" +/* /sys/firmware/opal */ +struct kobject *opal_kobj; + struct opal { u64 base; u64 entry; @@ -375,6 +379,17 @@ static irqreturn_t opal_interrupt(int irq, void *data) return IRQ_HANDLED; } +static int opal_sysfs_init(void) +{ + opal_kobj = kobject_create_and_add("opal", firmware_kobj); + if (!opal_kobj) { + pr_warn("kobject_create_and_add opal failed\n"); + return -ENOMEM; + } + + return 0; +} + static int __init opal_init(void) { struct device_node *np, *consoles; @@ -420,6 +435,10 @@ static int __init opal_init(void) " (0x%x)\n", rc, irq, hwirq); opal_irqs[i] = irq; } + + /* Create "opal" kobject under /sys/firmware */ + rc = opal_sysfs_init(); + return 0; } subsys_initcall(opal_init); |