static int __init acpi_table_parse_srat(enum acpi_srat_type id, acpi_table_entry_handler handler, unsigned int max_entries) { return acpi_table_parse_entries(ACPI_SIG_SRAT, sizeof(struct acpi_table_srat), id, handler, max_entries); }
int __init acpi_table_parse_madt(enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries) { return acpi_table_parse_entries(ACPI_SIG_MADT, sizeof(struct acpi_table_madt), id, handler, max_entries); }
int __init acpi_table_parse_srat(int id, acpi_madt_entry_handler handler, unsigned int max_entries) { return acpi_table_parse_entries(ACPI_SIG_SRAT, sizeof(struct acpi_table_srat), id, handler, max_entries); }
/** * acpi_pcc_probe - Parse the ACPI tree for the PCCT. * * Return: 0 for Success, else errno. */ static int __init acpi_pcc_probe(void) { acpi_size pcct_tbl_header_size; struct acpi_table_header *pcct_tbl; struct acpi_subtable_header *pcct_entry; int count, i; acpi_status status = AE_OK; /* Search for PCCT */ status = acpi_get_table_with_size(ACPI_SIG_PCCT, 0, &pcct_tbl, &pcct_tbl_header_size); if (ACPI_FAILURE(status) || !pcct_tbl) { pr_warn("PCCT header not found.\n"); return -ENODEV; } count = acpi_table_parse_entries(ACPI_SIG_PCCT, sizeof(struct acpi_table_pcct), ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE, parse_pcc_subspace, MAX_PCC_SUBSPACES); if (count <= 0) { pr_err("Error parsing PCC subspaces from PCCT\n"); return -EINVAL; } pcc_mbox_channels = kzalloc(sizeof(struct mbox_chan) * count, GFP_KERNEL); if (!pcc_mbox_channels) { pr_err("Could not allocate space for PCC mbox channels\n"); return -ENOMEM; } /* Point to the first PCC subspace entry */ pcct_entry = (struct acpi_subtable_header *) ( (unsigned long) pcct_tbl + sizeof(struct acpi_table_pcct)); for (i = 0; i < count; i++) { pcc_mbox_channels[i].con_priv = pcct_entry; pcct_entry = (struct acpi_subtable_header *) ((unsigned long) pcct_entry + pcct_entry->length); } pcc_mbox_ctrl.num_chans = count; pr_info("Detected %d PCC Subspaces\n", pcc_mbox_ctrl.num_chans); return 0; }
void __init acpi_map_cpus_to_nodes(void) { acpi_table_parse_entries(ACPI_SIG_SRAT, sizeof(struct acpi_table_srat), ACPI_SRAT_TYPE_GICC_AFFINITY, acpi_parse_gicc_pxm, 0); }
/** * acpi_pcc_probe - Parse the ACPI tree for the PCCT. * * Return: 0 for Success, else errno. */ static int __init acpi_pcc_probe(void) { acpi_size pcct_tbl_header_size; struct acpi_table_header *pcct_tbl; struct acpi_subtable_header *pcct_entry; int count, i; acpi_status status = AE_OK; /* Search for PCCT */ status = acpi_get_table_with_size(ACPI_SIG_PCCT, 0, &pcct_tbl, &pcct_tbl_header_size); if (ACPI_FAILURE(status) || !pcct_tbl) { pr_warn("PCCT header not found.\n"); return -ENODEV; } count = acpi_table_parse_entries(ACPI_SIG_PCCT, sizeof(struct acpi_table_pcct), ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE, parse_pcc_subspace, MAX_PCC_SUBSPACES); if (count <= 0) { pr_err("Error parsing PCC subspaces from PCCT\n"); return -EINVAL; } pcc_mbox_channels = kzalloc(sizeof(struct mbox_chan) * count, GFP_KERNEL); if (!pcc_mbox_channels) { pr_err("Could not allocate space for PCC mbox channels\n"); return -ENOMEM; } pcc_doorbell_vaddr = kcalloc(count, sizeof(void *), GFP_KERNEL); if (!pcc_doorbell_vaddr) { kfree(pcc_mbox_channels); return -ENOMEM; } /* Point to the first PCC subspace entry */ pcct_entry = (struct acpi_subtable_header *) ( (unsigned long) pcct_tbl + sizeof(struct acpi_table_pcct)); for (i = 0; i < count; i++) { struct acpi_generic_address *db_reg; struct acpi_pcct_hw_reduced *pcct_ss; pcc_mbox_channels[i].con_priv = pcct_entry; pcct_entry = (struct acpi_subtable_header *) ((unsigned long) pcct_entry + pcct_entry->length); /* If doorbell is in system memory cache the virt address */ pcct_ss = (struct acpi_pcct_hw_reduced *)pcct_entry; db_reg = &pcct_ss->doorbell_register; if (db_reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) pcc_doorbell_vaddr[i] = acpi_os_ioremap(db_reg->address, db_reg->bit_width/8); } pcc_mbox_ctrl.num_chans = count; pr_info("Detected %d PCC Subspaces\n", pcc_mbox_ctrl.num_chans); return 0; }