diff options
Diffstat (limited to 'arch/parisc/kernel/firmware.c')
| -rw-r--r-- | arch/parisc/kernel/firmware.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index ab80e5c6f651..6d471c00c71a 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -233,6 +233,26 @@ int pdc_add_valid(unsigned long address) EXPORT_SYMBOL(pdc_add_valid); /** + * pdc_instr - Get instruction that invokes PDCE_CHECK in HPMC handler. + * @instr: Pointer to variable which will get instruction opcode. + * + * The return value is PDC_OK (0) in case call succeeded. + */ +int __init pdc_instr(unsigned int *instr) +{ + int retval; + unsigned long flags; + + spin_lock_irqsave(&pdc_lock, flags); + retval = mem_pdc_call(PDC_INSTR, 0UL, __pa(pdc_result)); + convert_to_wide(pdc_result); + *instr = pdc_result[0]; + spin_unlock_irqrestore(&pdc_lock, flags); + + return retval; +} + +/** * pdc_chassis_info - Return chassis information. * @result: The return buffer. * @chassis_info: The memory buffer address. |