diff options
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 59 |
1 files changed, 40 insertions, 19 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 99291a8f41c6..e41d38299ae9 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -188,7 +188,7 @@ static void pnv_ioda_free_pe(struct pnv_ioda_pe *pe) unsigned int pe_num = pe->pe_number; WARN_ON(pe->pdev); - WARN_ON(pe->npucomp); /* NPUs are not supposed to be freed */ + WARN_ON(pe->npucomp); /* NPUs for nvlink are not supposed to be freed */ kfree(pe->npucomp); memset(pe, 0, sizeof(struct pnv_ioda_pe)); clear_bit(pe_num, phb->ioda.pe_alloc); @@ -777,6 +777,34 @@ static int pnv_ioda_set_peltv(struct pnv_phb *phb, return 0; } +static void pnv_ioda_unset_peltv(struct pnv_phb *phb, + struct pnv_ioda_pe *pe, + struct pci_dev *parent) +{ + int64_t rc; + + while (parent) { + struct pci_dn *pdn = pci_get_pdn(parent); + + if (pdn && pdn->pe_number != IODA_INVALID_PE) { + rc = opal_pci_set_peltv(phb->opal_id, pdn->pe_number, + pe->pe_number, + OPAL_REMOVE_PE_FROM_DOMAIN); + /* XXX What to do in case of error ? */ + } + parent = parent->bus->self; + } + + opal_pci_eeh_freeze_clear(phb->opal_id, pe->pe_number, + OPAL_EEH_ACTION_CLEAR_FREEZE_ALL); + + /* Disassociate PE in PELT */ + rc = opal_pci_set_peltv(phb->opal_id, pe->pe_number, + pe->pe_number, OPAL_REMOVE_PE_FROM_DOMAIN); + if (rc) + pe_warn(pe, "OPAL error %lld remove self from PELTV\n", rc); +} + static int pnv_ioda_deconfigure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) { struct pci_dev *parent; @@ -827,25 +855,13 @@ static int pnv_ioda_deconfigure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) for (rid = pe->rid; rid < rid_end; rid++) phb->ioda.pe_rmap[rid] = IODA_INVALID_PE; - /* Release from all parents PELT-V */ - while (parent) { - struct pci_dn *pdn = pci_get_pdn(parent); - if (pdn && pdn->pe_number != IODA_INVALID_PE) { - rc = opal_pci_set_peltv(phb->opal_id, pdn->pe_number, - pe->pe_number, OPAL_REMOVE_PE_FROM_DOMAIN); - /* XXX What to do in case of error ? */ - } - parent = parent->bus->self; - } - - opal_pci_eeh_freeze_clear(phb->opal_id, pe->pe_number, - OPAL_EEH_ACTION_CLEAR_FREEZE_ALL); + /* + * Release from all parents PELT-V. NPUs don't have a PELTV + * table + */ + if (phb->type != PNV_PHB_NPU_NVLINK && phb->type != PNV_PHB_NPU_OCAPI) + pnv_ioda_unset_peltv(phb, pe, parent); - /* Disassociate PE in PELT */ - rc = opal_pci_set_peltv(phb->opal_id, pe->pe_number, - pe->pe_number, OPAL_REMOVE_PE_FROM_DOMAIN); - if (rc) - pe_warn(pe, "OPAL error %lld remove self from PELTV\n", rc); rc = opal_pci_set_pe(phb->opal_id, pe->pe_number, pe->rid, bcomp, dcomp, fcomp, OPAL_UNMAP_PE); if (rc) @@ -1075,6 +1091,7 @@ static struct pnv_ioda_pe *pnv_ioda_setup_dev_PE(struct pci_dev *dev) pe->pbus = NULL; pe->mve_number = -1; pe->rid = dev->bus->number << 8 | pdn->devfn; + pe->device_count++; pe_info(pe, "Associated device to PE\n"); @@ -1239,6 +1256,7 @@ static struct pnv_ioda_pe *pnv_ioda_setup_npu_PE(struct pci_dev *npu_pdev) rid = npu_pdev->bus->number << 8 | npu_pdn->devfn; npu_pdn->pe_number = pe_num; phb->ioda.pe_rmap[rid] = pe->pe_number; + pe->device_count++; /* Map the PE to this link */ rc = opal_pci_set_pe(phb->opal_id, pe_num, rid, @@ -3555,6 +3573,8 @@ static void pnv_ioda_release_pe(struct pnv_ioda_pe *pe) case PNV_PHB_IODA2: pnv_pci_ioda2_release_pe_dma(pe); break; + case PNV_PHB_NPU_OCAPI: + break; default: WARN_ON(1); } @@ -3656,6 +3676,7 @@ static const struct pci_controller_ops pnv_npu_ioda_controller_ops = { static const struct pci_controller_ops pnv_npu_ocapi_ioda_controller_ops = { .enable_device_hook = pnv_ocapi_enable_device_hook, + .release_device = pnv_pci_release_device, .window_alignment = pnv_pci_window_alignment, .reset_secondary_bus = pnv_pci_reset_secondary_bus, .shutdown = pnv_pci_ioda_shutdown, |