mirror of https://gitee.com/openkylin/linux.git
Merge branch 'pci/hotplug'
- Fix RPA and RPA DLPAR refcount issues (Tyrel Datwyler) - Stop exporting pci_get_hp_params() (Alexandru Gagniuc) - Simplify _HPP, _HPX parsing (Alexandru Gagniuc) - Add support for _HPX Type 3 settings (Alexandru Gagniuc) - Tell firmware we support _HPX Type 3 via _OSC (Alexandru Gagniuc) * pci/hotplug: PCI/ACPI: Advertise _HPX Type 3 support via _OSC PCI/ACPI: Implement _HPX Type 3 Setting Record PCI/ACPI: Remove the need for 'struct hotplug_params' PCI/ACPI: Do not export pci_get_hp_params() PCI: rpaphp: Get/put device node reference during slot alloc/dealloc PCI: rpadlpar: Fix leaked device_node references in add/remove paths
This commit is contained in:
Bjorn Helgaas
commit
3ea6f739dc
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@ -145,6 +145,7 @@ static struct pci_osc_bit_struct pci_osc_support_bit[] = {
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{ OSC_PCI_CLOCK_PM_SUPPORT, "ClockPM" },
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{ OSC_PCI_SEGMENT_GROUPS_SUPPORT, "Segments" },
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{ OSC_PCI_MSI_SUPPORT, "MSI" },
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{ OSC_PCI_HPX_TYPE_3_SUPPORT, "HPX-Type3" },
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};
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static struct pci_osc_bit_struct pci_osc_control_bit[] = {
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@ -446,6 +447,7 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
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* PCI domains, so we indicate this in _OSC support capabilities.
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*/
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support = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
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support |= OSC_PCI_HPX_TYPE_3_SUPPORT;
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if (pci_ext_cfg_avail())
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support |= OSC_PCI_EXT_CONFIG_SUPPORT;
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if (pcie_aspm_support_enabled())
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@ -51,6 +51,7 @@ static struct device_node *find_vio_slot_node(char *drc_name)
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if (rc == 0)
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break;
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}
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of_node_put(parent);
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return dn;
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}
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@ -71,6 +72,7 @@ static struct device_node *find_php_slot_pci_node(char *drc_name,
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return np;
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}
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/* Returns a device_node with its reference count incremented */
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static struct device_node *find_dlpar_node(char *drc_name, int *node_type)
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{
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struct device_node *dn;
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@ -306,6 +308,7 @@ int dlpar_add_slot(char *drc_name)
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rc = dlpar_add_phb(drc_name, dn);
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break;
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}
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of_node_put(dn);
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printk(KERN_INFO "%s: slot %s added\n", DLPAR_MODULE_NAME, drc_name);
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exit:
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@ -439,6 +442,7 @@ int dlpar_remove_slot(char *drc_name)
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rc = dlpar_remove_pci_slot(drc_name, dn);
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break;
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}
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of_node_put(dn);
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vm_unmap_aliases();
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printk(KERN_INFO "%s: slot %s removed\n", DLPAR_MODULE_NAME, drc_name);
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@ -21,6 +21,7 @@
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/* free up the memory used by a slot */
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void dealloc_slot_struct(struct slot *slot)
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{
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of_node_put(slot->dn);
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kfree(slot->name);
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kfree(slot);
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}
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@ -36,7 +37,7 @@ struct slot *alloc_slot_struct(struct device_node *dn,
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slot->name = kstrdup(drc_name, GFP_KERNEL);
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if (!slot->name)
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goto error_slot;
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slot->dn = dn;
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slot->dn = of_node_get(dn);
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slot->index = drc_index;
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slot->power_domain = power_domain;
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slot->hotplug_slot.ops = &rpaphp_hotplug_slot_ops;
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@ -119,7 +119,7 @@ phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle)
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}
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static acpi_status decode_type0_hpx_record(union acpi_object *record,
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struct hotplug_params *hpx)
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struct hpp_type0 *hpx0)
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{
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int i;
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union acpi_object *fields = record->package.elements;
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@ -132,12 +132,11 @@ static acpi_status decode_type0_hpx_record(union acpi_object *record,
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for (i = 2; i < 6; i++)
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if (fields[i].type != ACPI_TYPE_INTEGER)
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return AE_ERROR;
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hpx->t0 = &hpx->type0_data;
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hpx->t0->revision = revision;
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hpx->t0->cache_line_size = fields[2].integer.value;
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hpx->t0->latency_timer = fields[3].integer.value;
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hpx->t0->enable_serr = fields[4].integer.value;
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hpx->t0->enable_perr = fields[5].integer.value;
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hpx0->revision = revision;
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hpx0->cache_line_size = fields[2].integer.value;
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hpx0->latency_timer = fields[3].integer.value;
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hpx0->enable_serr = fields[4].integer.value;
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hpx0->enable_perr = fields[5].integer.value;
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break;
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default:
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printk(KERN_WARNING
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@ -149,7 +148,7 @@ static acpi_status decode_type0_hpx_record(union acpi_object *record,
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}
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static acpi_status decode_type1_hpx_record(union acpi_object *record,
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struct hotplug_params *hpx)
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struct hpp_type1 *hpx1)
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{
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int i;
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union acpi_object *fields = record->package.elements;
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@ -162,11 +161,10 @@ static acpi_status decode_type1_hpx_record(union acpi_object *record,
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for (i = 2; i < 5; i++)
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if (fields[i].type != ACPI_TYPE_INTEGER)
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return AE_ERROR;
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hpx->t1 = &hpx->type1_data;
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hpx->t1->revision = revision;
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hpx->t1->max_mem_read = fields[2].integer.value;
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hpx->t1->avg_max_split = fields[3].integer.value;
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hpx->t1->tot_max_split = fields[4].integer.value;
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hpx1->revision = revision;
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hpx1->max_mem_read = fields[2].integer.value;
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hpx1->avg_max_split = fields[3].integer.value;
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hpx1->tot_max_split = fields[4].integer.value;
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break;
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default:
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printk(KERN_WARNING
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@ -178,7 +176,7 @@ static acpi_status decode_type1_hpx_record(union acpi_object *record,
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}
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static acpi_status decode_type2_hpx_record(union acpi_object *record,
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struct hotplug_params *hpx)
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struct hpp_type2 *hpx2)
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{
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int i;
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union acpi_object *fields = record->package.elements;
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@ -191,24 +189,23 @@ static acpi_status decode_type2_hpx_record(union acpi_object *record,
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for (i = 2; i < 18; i++)
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if (fields[i].type != ACPI_TYPE_INTEGER)
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return AE_ERROR;
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hpx->t2 = &hpx->type2_data;
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hpx->t2->revision = revision;
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hpx->t2->unc_err_mask_and = fields[2].integer.value;
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hpx->t2->unc_err_mask_or = fields[3].integer.value;
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hpx->t2->unc_err_sever_and = fields[4].integer.value;
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hpx->t2->unc_err_sever_or = fields[5].integer.value;
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hpx->t2->cor_err_mask_and = fields[6].integer.value;
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hpx->t2->cor_err_mask_or = fields[7].integer.value;
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hpx->t2->adv_err_cap_and = fields[8].integer.value;
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hpx->t2->adv_err_cap_or = fields[9].integer.value;
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hpx->t2->pci_exp_devctl_and = fields[10].integer.value;
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hpx->t2->pci_exp_devctl_or = fields[11].integer.value;
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hpx->t2->pci_exp_lnkctl_and = fields[12].integer.value;
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hpx->t2->pci_exp_lnkctl_or = fields[13].integer.value;
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hpx->t2->sec_unc_err_sever_and = fields[14].integer.value;
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hpx->t2->sec_unc_err_sever_or = fields[15].integer.value;
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hpx->t2->sec_unc_err_mask_and = fields[16].integer.value;
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hpx->t2->sec_unc_err_mask_or = fields[17].integer.value;
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hpx2->revision = revision;
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hpx2->unc_err_mask_and = fields[2].integer.value;
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hpx2->unc_err_mask_or = fields[3].integer.value;
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hpx2->unc_err_sever_and = fields[4].integer.value;
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hpx2->unc_err_sever_or = fields[5].integer.value;
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hpx2->cor_err_mask_and = fields[6].integer.value;
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hpx2->cor_err_mask_or = fields[7].integer.value;
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hpx2->adv_err_cap_and = fields[8].integer.value;
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hpx2->adv_err_cap_or = fields[9].integer.value;
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hpx2->pci_exp_devctl_and = fields[10].integer.value;
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hpx2->pci_exp_devctl_or = fields[11].integer.value;
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hpx2->pci_exp_lnkctl_and = fields[12].integer.value;
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hpx2->pci_exp_lnkctl_or = fields[13].integer.value;
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hpx2->sec_unc_err_sever_and = fields[14].integer.value;
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hpx2->sec_unc_err_sever_or = fields[15].integer.value;
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hpx2->sec_unc_err_mask_and = fields[16].integer.value;
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hpx2->sec_unc_err_mask_or = fields[17].integer.value;
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break;
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default:
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printk(KERN_WARNING
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@ -219,17 +216,76 @@ static acpi_status decode_type2_hpx_record(union acpi_object *record,
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return AE_OK;
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}
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static acpi_status acpi_run_hpx(acpi_handle handle, struct hotplug_params *hpx)
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static void parse_hpx3_register(struct hpx_type3 *hpx3_reg,
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union acpi_object *reg_fields)
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{
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hpx3_reg->device_type = reg_fields[0].integer.value;
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hpx3_reg->function_type = reg_fields[1].integer.value;
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hpx3_reg->config_space_location = reg_fields[2].integer.value;
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hpx3_reg->pci_exp_cap_id = reg_fields[3].integer.value;
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hpx3_reg->pci_exp_cap_ver = reg_fields[4].integer.value;
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hpx3_reg->pci_exp_vendor_id = reg_fields[5].integer.value;
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hpx3_reg->dvsec_id = reg_fields[6].integer.value;
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hpx3_reg->dvsec_rev = reg_fields[7].integer.value;
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hpx3_reg->match_offset = reg_fields[8].integer.value;
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hpx3_reg->match_mask_and = reg_fields[9].integer.value;
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hpx3_reg->match_value = reg_fields[10].integer.value;
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hpx3_reg->reg_offset = reg_fields[11].integer.value;
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hpx3_reg->reg_mask_and = reg_fields[12].integer.value;
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hpx3_reg->reg_mask_or = reg_fields[13].integer.value;
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}
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static acpi_status program_type3_hpx_record(struct pci_dev *dev,
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union acpi_object *record,
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const struct hotplug_program_ops *hp_ops)
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{
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union acpi_object *fields = record->package.elements;
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u32 desc_count, expected_length, revision;
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union acpi_object *reg_fields;
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struct hpx_type3 hpx3;
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int i;
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revision = fields[1].integer.value;
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switch (revision) {
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case 1:
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desc_count = fields[2].integer.value;
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expected_length = 3 + desc_count * 14;
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if (record->package.count != expected_length)
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return AE_ERROR;
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for (i = 2; i < expected_length; i++)
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if (fields[i].type != ACPI_TYPE_INTEGER)
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return AE_ERROR;
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for (i = 0; i < desc_count; i++) {
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reg_fields = fields + 3 + i * 14;
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parse_hpx3_register(&hpx3, reg_fields);
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hp_ops->program_type3(dev, &hpx3);
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}
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break;
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default:
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printk(KERN_WARNING
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"%s: Type 3 Revision %d record not supported\n",
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__func__, revision);
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return AE_ERROR;
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}
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return AE_OK;
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}
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static acpi_status acpi_run_hpx(struct pci_dev *dev, acpi_handle handle,
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const struct hotplug_program_ops *hp_ops)
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{
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acpi_status status;
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struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
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union acpi_object *package, *record, *fields;
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struct hpp_type0 hpx0;
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struct hpp_type1 hpx1;
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struct hpp_type2 hpx2;
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u32 type;
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int i;
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/* Clear the return buffer with zeros */
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memset(hpx, 0, sizeof(struct hotplug_params));
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status = acpi_evaluate_object(handle, "_HPX", NULL, &buffer);
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if (ACPI_FAILURE(status))
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return status;
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@ -257,17 +313,28 @@ static acpi_status acpi_run_hpx(acpi_handle handle, struct hotplug_params *hpx)
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type = fields[0].integer.value;
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switch (type) {
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case 0:
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status = decode_type0_hpx_record(record, hpx);
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memset(&hpx0, 0, sizeof(hpx0));
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status = decode_type0_hpx_record(record, &hpx0);
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||||
if (ACPI_FAILURE(status))
|
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goto exit;
|
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hp_ops->program_type0(dev, &hpx0);
|
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break;
|
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case 1:
|
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status = decode_type1_hpx_record(record, hpx);
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memset(&hpx1, 0, sizeof(hpx1));
|
||||
status = decode_type1_hpx_record(record, &hpx1);
|
||||
if (ACPI_FAILURE(status))
|
||||
goto exit;
|
||||
hp_ops->program_type1(dev, &hpx1);
|
||||
break;
|
||||
case 2:
|
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status = decode_type2_hpx_record(record, hpx);
|
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memset(&hpx2, 0, sizeof(hpx2));
|
||||
status = decode_type2_hpx_record(record, &hpx2);
|
||||
if (ACPI_FAILURE(status))
|
||||
goto exit;
|
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hp_ops->program_type2(dev, &hpx2);
|
||||
break;
|
||||
case 3:
|
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status = program_type3_hpx_record(dev, record, hp_ops);
|
||||
if (ACPI_FAILURE(status))
|
||||
goto exit;
|
||||
break;
|
||||
|
|
@ -283,14 +350,16 @@ static acpi_status acpi_run_hpx(acpi_handle handle, struct hotplug_params *hpx)
|
|||
return status;
|
||||
}
|
||||
|
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static acpi_status acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
|
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static acpi_status acpi_run_hpp(struct pci_dev *dev, acpi_handle handle,
|
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const struct hotplug_program_ops *hp_ops)
|
||||
{
|
||||
acpi_status status;
|
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struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
||||
union acpi_object *package, *fields;
|
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struct hpp_type0 hpp0;
|
||||
int i;
|
||||
|
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memset(hpp, 0, sizeof(struct hotplug_params));
|
||||
memset(&hpp0, 0, sizeof(hpp0));
|
||||
|
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status = acpi_evaluate_object(handle, "_HPP", NULL, &buffer);
|
||||
if (ACPI_FAILURE(status))
|
||||
|
|
@ -311,12 +380,13 @@ static acpi_status acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
|
|||
}
|
||||
}
|
||||
|
||||
hpp->t0 = &hpp->type0_data;
|
||||
hpp->t0->revision = 1;
|
||||
hpp->t0->cache_line_size = fields[0].integer.value;
|
||||
hpp->t0->latency_timer = fields[1].integer.value;
|
||||
hpp->t0->enable_serr = fields[2].integer.value;
|
||||
hpp->t0->enable_perr = fields[3].integer.value;
|
||||
hpp0.revision = 1;
|
||||
hpp0.cache_line_size = fields[0].integer.value;
|
||||
hpp0.latency_timer = fields[1].integer.value;
|
||||
hpp0.enable_serr = fields[2].integer.value;
|
||||
hpp0.enable_perr = fields[3].integer.value;
|
||||
|
||||
hp_ops->program_type0(dev, &hpp0);
|
||||
|
||||
exit:
|
||||
kfree(buffer.pointer);
|
||||
|
|
@ -328,7 +398,8 @@ static acpi_status acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
|
|||
* @dev - the pci_dev for which we want parameters
|
||||
* @hpp - allocated by the caller
|
||||
*/
|
||||
int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp)
|
||||
int pci_acpi_program_hp_params(struct pci_dev *dev,
|
||||
const struct hotplug_program_ops *hp_ops)
|
||||
{
|
||||
acpi_status status;
|
||||
acpi_handle handle, phandle;
|
||||
|
|
@ -351,10 +422,10 @@ int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp)
|
|||
* this pci dev.
|
||||
*/
|
||||
while (handle) {
|
||||
status = acpi_run_hpx(handle, hpp);
|
||||
status = acpi_run_hpx(dev, handle, hp_ops);
|
||||
if (ACPI_SUCCESS(status))
|
||||
return 0;
|
||||
status = acpi_run_hpp(handle, hpp);
|
||||
status = acpi_run_hpp(dev, handle, hp_ops);
|
||||
if (ACPI_SUCCESS(status))
|
||||
return 0;
|
||||
if (acpi_is_root_bridge(handle))
|
||||
|
|
@ -366,7 +437,6 @@ int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp)
|
|||
}
|
||||
return -ENODEV;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pci_get_hp_params);
|
||||
|
||||
/**
|
||||
* pciehp_is_native - Check whether a hotplug port is handled by the OS
|
||||
|
|
|
|||
|
|
@ -2077,6 +2077,119 @@ static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp)
|
|||
*/
|
||||
}
|
||||
|
||||
static u16 hpx3_device_type(struct pci_dev *dev)
|
||||
{
|
||||
u16 pcie_type = pci_pcie_type(dev);
|
||||
const int pcie_to_hpx3_type[] = {
|
||||
[PCI_EXP_TYPE_ENDPOINT] = HPX_TYPE_ENDPOINT,
|
||||
[PCI_EXP_TYPE_LEG_END] = HPX_TYPE_LEG_END,
|
||||
[PCI_EXP_TYPE_RC_END] = HPX_TYPE_RC_END,
|
||||
[PCI_EXP_TYPE_RC_EC] = HPX_TYPE_RC_EC,
|
||||
[PCI_EXP_TYPE_ROOT_PORT] = HPX_TYPE_ROOT_PORT,
|
||||
[PCI_EXP_TYPE_UPSTREAM] = HPX_TYPE_UPSTREAM,
|
||||
[PCI_EXP_TYPE_DOWNSTREAM] = HPX_TYPE_DOWNSTREAM,
|
||||
[PCI_EXP_TYPE_PCI_BRIDGE] = HPX_TYPE_PCI_BRIDGE,
|
||||
[PCI_EXP_TYPE_PCIE_BRIDGE] = HPX_TYPE_PCIE_BRIDGE,
|
||||
};
|
||||
|
||||
if (pcie_type >= ARRAY_SIZE(pcie_to_hpx3_type))
|
||||
return 0;
|
||||
|
||||
return pcie_to_hpx3_type[pcie_type];
|
||||
}
|
||||
|
||||
static u8 hpx3_function_type(struct pci_dev *dev)
|
||||
{
|
||||
if (dev->is_virtfn)
|
||||
return HPX_FN_SRIOV_VIRT;
|
||||
else if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV) > 0)
|
||||
return HPX_FN_SRIOV_PHYS;
|
||||
else
|
||||
return HPX_FN_NORMAL;
|
||||
}
|
||||
|
||||
static bool hpx3_cap_ver_matches(u8 pcie_cap_id, u8 hpx3_cap_id)
|
||||
{
|
||||
u8 cap_ver = hpx3_cap_id & 0xf;
|
||||
|
||||
if ((hpx3_cap_id & BIT(4)) && cap_ver >= pcie_cap_id)
|
||||
return true;
|
||||
else if (cap_ver == pcie_cap_id)
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static void program_hpx_type3_register(struct pci_dev *dev,
|
||||
const struct hpx_type3 *reg)
|
||||
{
|
||||
u32 match_reg, write_reg, header, orig_value;
|
||||
u16 pos;
|
||||
|
||||
if (!(hpx3_device_type(dev) & reg->device_type))
|
||||
return;
|
||||
|
||||
if (!(hpx3_function_type(dev) & reg->function_type))
|
||||
return;
|
||||
|
||||
switch (reg->config_space_location) {
|
||||
case HPX_CFG_PCICFG:
|
||||
pos = 0;
|
||||
break;
|
||||
case HPX_CFG_PCIE_CAP:
|
||||
pos = pci_find_capability(dev, reg->pci_exp_cap_id);
|
||||
if (pos == 0)
|
||||
return;
|
||||
|
||||
break;
|
||||
case HPX_CFG_PCIE_CAP_EXT:
|
||||
pos = pci_find_ext_capability(dev, reg->pci_exp_cap_id);
|
||||
if (pos == 0)
|
||||
return;
|
||||
|
||||
pci_read_config_dword(dev, pos, &header);
|
||||
if (!hpx3_cap_ver_matches(PCI_EXT_CAP_VER(header),
|
||||
reg->pci_exp_cap_ver))
|
||||
return;
|
||||
|
||||
break;
|
||||
case HPX_CFG_VEND_CAP: /* Fall through */
|
||||
case HPX_CFG_DVSEC: /* Fall through */
|
||||
default:
|
||||
pci_warn(dev, "Encountered _HPX type 3 with unsupported config space location");
|
||||
return;
|
||||
}
|
||||
|
||||
pci_read_config_dword(dev, pos + reg->match_offset, &match_reg);
|
||||
|
||||
if ((match_reg & reg->match_mask_and) != reg->match_value)
|
||||
return;
|
||||
|
||||
pci_read_config_dword(dev, pos + reg->reg_offset, &write_reg);
|
||||
orig_value = write_reg;
|
||||
write_reg &= reg->reg_mask_and;
|
||||
write_reg |= reg->reg_mask_or;
|
||||
|
||||
if (orig_value == write_reg)
|
||||
return;
|
||||
|
||||
pci_write_config_dword(dev, pos + reg->reg_offset, write_reg);
|
||||
|
||||
pci_dbg(dev, "Applied _HPX3 at [0x%x]: 0x%08x -> 0x%08x",
|
||||
pos, orig_value, write_reg);
|
||||
}
|
||||
|
||||
static void program_hpx_type3(struct pci_dev *dev, struct hpx_type3 *hpx3)
|
||||
{
|
||||
if (!hpx3)
|
||||
return;
|
||||
|
||||
if (!pci_is_pcie(dev))
|
||||
return;
|
||||
|
||||
program_hpx_type3_register(dev, hpx3);
|
||||
}
|
||||
|
||||
int pci_configure_extended_tags(struct pci_dev *dev, void *ign)
|
||||
{
|
||||
struct pci_host_bridge *host;
|
||||
|
|
@ -2257,8 +2370,12 @@ static void pci_configure_serr(struct pci_dev *dev)
|
|||
|
||||
static void pci_configure_device(struct pci_dev *dev)
|
||||
{
|
||||
struct hotplug_params hpp;
|
||||
int ret;
|
||||
static const struct hotplug_program_ops hp_ops = {
|
||||
.program_type0 = program_hpp_type0,
|
||||
.program_type1 = program_hpp_type1,
|
||||
.program_type2 = program_hpp_type2,
|
||||
.program_type3 = program_hpx_type3,
|
||||
};
|
||||
|
||||
pci_configure_mps(dev);
|
||||
pci_configure_extended_tags(dev, NULL);
|
||||
|
|
@ -2267,14 +2384,7 @@ static void pci_configure_device(struct pci_dev *dev)
|
|||
pci_configure_eetlp_prefix(dev);
|
||||
pci_configure_serr(dev);
|
||||
|
||||
memset(&hpp, 0, sizeof(hpp));
|
||||
ret = pci_get_hp_params(dev, &hpp);
|
||||
if (ret)
|
||||
return;
|
||||
|
||||
program_hpp_type2(dev, hpp.t2);
|
||||
program_hpp_type1(dev, hpp.t1);
|
||||
program_hpp_type0(dev, hpp.t0);
|
||||
pci_acpi_program_hp_params(dev, &hp_ops);
|
||||
}
|
||||
|
||||
static void pci_release_capabilities(struct pci_dev *dev)
|
||||
|
|
|
|||
|
|
@ -513,7 +513,8 @@ extern bool osc_pc_lpi_support_confirmed;
|
|||
#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
|
||||
#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
|
||||
#define OSC_PCI_MSI_SUPPORT 0x00000010
|
||||
#define OSC_PCI_SUPPORT_MASKS 0x0000001f
|
||||
#define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
|
||||
#define OSC_PCI_SUPPORT_MASKS 0x0000011f
|
||||
|
||||
/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
|
||||
#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
|
||||
|
|
|
|||
|
|
@ -124,26 +124,72 @@ struct hpp_type2 {
|
|||
u32 sec_unc_err_mask_or;
|
||||
};
|
||||
|
||||
struct hotplug_params {
|
||||
struct hpp_type0 *t0; /* Type0: NULL if not available */
|
||||
struct hpp_type1 *t1; /* Type1: NULL if not available */
|
||||
struct hpp_type2 *t2; /* Type2: NULL if not available */
|
||||
struct hpp_type0 type0_data;
|
||||
struct hpp_type1 type1_data;
|
||||
struct hpp_type2 type2_data;
|
||||
/*
|
||||
* _HPX PCI Express Setting Record (Type 3)
|
||||
*/
|
||||
struct hpx_type3 {
|
||||
u16 device_type;
|
||||
u16 function_type;
|
||||
u16 config_space_location;
|
||||
u16 pci_exp_cap_id;
|
||||
u16 pci_exp_cap_ver;
|
||||
u16 pci_exp_vendor_id;
|
||||
u16 dvsec_id;
|
||||
u16 dvsec_rev;
|
||||
u16 match_offset;
|
||||
u32 match_mask_and;
|
||||
u32 match_value;
|
||||
u16 reg_offset;
|
||||
u32 reg_mask_and;
|
||||
u32 reg_mask_or;
|
||||
};
|
||||
|
||||
struct hotplug_program_ops {
|
||||
void (*program_type0)(struct pci_dev *dev, struct hpp_type0 *hpp);
|
||||
void (*program_type1)(struct pci_dev *dev, struct hpp_type1 *hpp);
|
||||
void (*program_type2)(struct pci_dev *dev, struct hpp_type2 *hpp);
|
||||
void (*program_type3)(struct pci_dev *dev, struct hpx_type3 *hpp);
|
||||
};
|
||||
|
||||
enum hpx_type3_dev_type {
|
||||
HPX_TYPE_ENDPOINT = BIT(0),
|
||||
HPX_TYPE_LEG_END = BIT(1),
|
||||
HPX_TYPE_RC_END = BIT(2),
|
||||
HPX_TYPE_RC_EC = BIT(3),
|
||||
HPX_TYPE_ROOT_PORT = BIT(4),
|
||||
HPX_TYPE_UPSTREAM = BIT(5),
|
||||
HPX_TYPE_DOWNSTREAM = BIT(6),
|
||||
HPX_TYPE_PCI_BRIDGE = BIT(7),
|
||||
HPX_TYPE_PCIE_BRIDGE = BIT(8),
|
||||
};
|
||||
|
||||
enum hpx_type3_fn_type {
|
||||
HPX_FN_NORMAL = BIT(0),
|
||||
HPX_FN_SRIOV_PHYS = BIT(1),
|
||||
HPX_FN_SRIOV_VIRT = BIT(2),
|
||||
};
|
||||
|
||||
enum hpx_type3_cfg_loc {
|
||||
HPX_CFG_PCICFG = 0,
|
||||
HPX_CFG_PCIE_CAP = 1,
|
||||
HPX_CFG_PCIE_CAP_EXT = 2,
|
||||
HPX_CFG_VEND_CAP = 3,
|
||||
HPX_CFG_DVSEC = 4,
|
||||
HPX_CFG_MAX,
|
||||
};
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
#include <linux/acpi.h>
|
||||
int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp);
|
||||
int pci_acpi_program_hp_params(struct pci_dev *dev,
|
||||
const struct hotplug_program_ops *hp_ops);
|
||||
bool pciehp_is_native(struct pci_dev *bridge);
|
||||
int acpi_get_hp_hw_control_from_firmware(struct pci_dev *bridge);
|
||||
bool shpchp_is_native(struct pci_dev *bridge);
|
||||
int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle);
|
||||
int acpi_pci_detect_ejectable(acpi_handle handle);
|
||||
#else
|
||||
static inline int pci_get_hp_params(struct pci_dev *dev,
|
||||
struct hotplug_params *hpp)
|
||||
static inline int pci_acpi_program_hp_params(struct pci_dev *dev,
|
||||
const struct hotplug_program_ops *hp_ops)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue