diff options
| author | Vipin K Parashar <vipin@linux.vnet.ibm.com> | 2015-07-08 14:06:01 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-07-16 06:34:36 +0300 |
| commit | 3b476aadbc1409fef6be85f601117f2c6a331faa (patch) | |
| tree | 37dfbeb4a0780190a4f304f2f96bdbe2b72a3cad /arch/powerpc/include/asm/opal.h | |
| parent | f951e51003860705fc9fc663fbce90f8263a6804 (diff) | |
| download | linux-3b476aadbc1409fef6be85f601117f2c6a331faa.tar.xz | |
powerpc/powernv: Add poweroff (EPOW, DPO) events support for PowerNV platform
This patch adds support for OPAL EPOW (Environmental and Power Warnings)
and DPO (Delayed Power Off) events for the PowerNV platform. These events
are generated on FSP (Flexible Service Processor) based systems. EPOW
events are generated due to various critical system conditions that
require system shutdown. A few examples of these conditions are high
ambient temperature or system running on UPS power with low UPS battery.
DPO event is generated in response to admin initiated system shutdown
request. Upon receipt of EPOW and DPO events the host kernel invokes
orderly_poweroff() for performing graceful system shutdown.
Signed-off-by: Vipin K Parashar <vipin@linux.vnet.ibm.com>
Acked-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/opal.h')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 958e941c0cda..a091c2701d94 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -141,7 +141,8 @@ int64_t opal_pci_fence_phb(uint64_t phb_id); int64_t opal_pci_reinit(uint64_t phb_id, uint64_t reinit_scope, uint64_t data); int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action); int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action); -int64_t opal_get_epow_status(__be64 *status); +int64_t opal_get_epow_status(__be16 *epow_status, __be16 *num_epow_classes); +int64_t opal_get_dpo_status(__be64 *dpo_timeout); int64_t opal_set_system_attention_led(uint8_t led_action); int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe, __be16 *pci_error_type, __be16 *severity); |