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Commit 5ca27efb authored by Gavin Shan's avatar Gavin Shan Committed by Benjamin Herrenschmidt
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powerpc/powernv: Allow to freeze PE 



The patch synchronizes header file with firmware to have new OPAL
API opal_pci_eeh_freeze_set(), which is used to freeze the specified
PE in order to support "compound" PE.

Signed-off-by: default avatarGavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 262af557

arch/powerpc/include/asm/opal.h

+8 −1
Original line number Diff line number Diff line
@@ -147,6 +147,7 @@ struct opal_sg_list { 
#define OPAL_SET_PARAM				90

#define OPAL_DUMP_RESEND			91

#define OPAL_DUMP_INFO2				94

#define OPAL_PCI_EEH_FREEZE_SET			97



#ifndef __ASSEMBLY__
@@ -170,7 +171,11 @@ enum OpalFreezeState { 
enum OpalEehFreezeActionToken {

	OPAL_EEH_ACTION_CLEAR_FREEZE_MMIO = 1,

	OPAL_EEH_ACTION_CLEAR_FREEZE_DMA = 2,

	OPAL_EEH_ACTION_CLEAR_FREEZE_ALL = 3

	OPAL_EEH_ACTION_CLEAR_FREEZE_ALL = 3,



	OPAL_EEH_ACTION_SET_FREEZE_MMIO = 1,

	OPAL_EEH_ACTION_SET_FREEZE_DMA  = 2,

	OPAL_EEH_ACTION_SET_FREEZE_ALL  = 3

};



enum OpalPciStatusToken {
@@ -764,6 +769,8 @@ int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number, 
				   __be64 *phb_status);

int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number,

				  uint64_t eeh_action_token);

int64_t opal_pci_eeh_freeze_set(uint64_t phb_id, uint64_t pe_number,

				uint64_t eeh_action_token);

int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state);

arch/powerpc/platforms/powernv/opal-wrappers.S

+1 −0
Original line number Diff line number Diff line
@@ -183,6 +183,7 @@ OPAL_CALL(opal_get_xive, OPAL_GET_XIVE); 
OPAL_CALL(opal_register_exception_handler,	OPAL_REGISTER_OPAL_EXCEPTION_HANDLER);

OPAL_CALL(opal_pci_eeh_freeze_status,		OPAL_PCI_EEH_FREEZE_STATUS);

OPAL_CALL(opal_pci_eeh_freeze_clear,		OPAL_PCI_EEH_FREEZE_CLEAR);

OPAL_CALL(opal_pci_eeh_freeze_set,		OPAL_PCI_EEH_FREEZE_SET);

OPAL_CALL(opal_pci_shpc,			OPAL_PCI_SHPC);

OPAL_CALL(opal_pci_phb_mmio_enable,		OPAL_PCI_PHB_MMIO_ENABLE);

OPAL_CALL(opal_pci_set_phb_mem_window,		OPAL_PCI_SET_PHB_MEM_WINDOW);