From 5ca27efbd8b4579ef1e54e6c0a4a73dbf7f56a4a Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Mon, 21 Jul 2014 14:42:31 +1000 Subject: [PATCH] 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: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/opal.h | 9 ++++++++- arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 44e5083bf01a..7f5fd5396261 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -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); diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 27c40bcf9d12..3dda49957158 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -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); -- 2.39.5