155190f88SBenjamin Herrenschmidt /* 255190f88SBenjamin Herrenschmidt * PowerNV setup code. 355190f88SBenjamin Herrenschmidt * 455190f88SBenjamin Herrenschmidt * Copyright 2011 IBM Corp. 555190f88SBenjamin Herrenschmidt * 655190f88SBenjamin Herrenschmidt * This program is free software; you can redistribute it and/or 755190f88SBenjamin Herrenschmidt * modify it under the terms of the GNU General Public License 855190f88SBenjamin Herrenschmidt * as published by the Free Software Foundation; either version 955190f88SBenjamin Herrenschmidt * 2 of the License, or (at your option) any later version. 1055190f88SBenjamin Herrenschmidt */ 1155190f88SBenjamin Herrenschmidt 1255190f88SBenjamin Herrenschmidt #undef DEBUG 1355190f88SBenjamin Herrenschmidt 1455190f88SBenjamin Herrenschmidt #include <linux/cpu.h> 1555190f88SBenjamin Herrenschmidt #include <linux/errno.h> 1655190f88SBenjamin Herrenschmidt #include <linux/sched.h> 1755190f88SBenjamin Herrenschmidt #include <linux/kernel.h> 1855190f88SBenjamin Herrenschmidt #include <linux/tty.h> 1955190f88SBenjamin Herrenschmidt #include <linux/reboot.h> 2055190f88SBenjamin Herrenschmidt #include <linux/init.h> 2155190f88SBenjamin Herrenschmidt #include <linux/console.h> 2255190f88SBenjamin Herrenschmidt #include <linux/delay.h> 2355190f88SBenjamin Herrenschmidt #include <linux/irq.h> 2455190f88SBenjamin Herrenschmidt #include <linux/seq_file.h> 2555190f88SBenjamin Herrenschmidt #include <linux/of.h> 2626a2056eSRob Herring #include <linux/of_fdt.h> 2755190f88SBenjamin Herrenschmidt #include <linux/interrupt.h> 2855190f88SBenjamin Herrenschmidt #include <linux/bug.h> 29cd15b048SBenjamin Herrenschmidt #include <linux/pci.h> 30fb5153d0SGautham R. Shenoy #include <linux/cpufreq.h> 3155190f88SBenjamin Herrenschmidt 3255190f88SBenjamin Herrenschmidt #include <asm/machdep.h> 3355190f88SBenjamin Herrenschmidt #include <asm/firmware.h> 3455190f88SBenjamin Herrenschmidt #include <asm/xics.h> 35628daa8dSBenjamin Herrenschmidt #include <asm/rtas.h> 36daea1175SBenjamin Herrenschmidt #include <asm/opal.h> 3713906db6SBenjamin Herrenschmidt #include <asm/kexec.h> 38b2a80878SShreyas B. Prabhu #include <asm/smp.h> 3955190f88SBenjamin Herrenschmidt 4055190f88SBenjamin Herrenschmidt #include "powernv.h" 4155190f88SBenjamin Herrenschmidt 4255190f88SBenjamin Herrenschmidt static void __init pnv_setup_arch(void) 4355190f88SBenjamin Herrenschmidt { 444817fc32SAnton Blanchard set_arch_panic_timeout(10, ARCH_PANIC_TIMEOUT); 454817fc32SAnton Blanchard 4655190f88SBenjamin Herrenschmidt /* Initialize SMP */ 4755190f88SBenjamin Herrenschmidt pnv_smp_init(); 4855190f88SBenjamin Herrenschmidt 4961305a96SBenjamin Herrenschmidt /* Setup PCI */ 5061305a96SBenjamin Herrenschmidt pnv_pci_init(); 5155190f88SBenjamin Herrenschmidt 52628daa8dSBenjamin Herrenschmidt /* Setup RTC and NVRAM callbacks */ 53628daa8dSBenjamin Herrenschmidt if (firmware_has_feature(FW_FEATURE_OPAL)) 54628daa8dSBenjamin Herrenschmidt opal_nvram_init(); 5555190f88SBenjamin Herrenschmidt 5655190f88SBenjamin Herrenschmidt /* Enable NAP mode */ 5755190f88SBenjamin Herrenschmidt powersave_nap = 1; 5855190f88SBenjamin Herrenschmidt 5955190f88SBenjamin Herrenschmidt /* XXX PMCS */ 6055190f88SBenjamin Herrenschmidt } 6155190f88SBenjamin Herrenschmidt 6255190f88SBenjamin Herrenschmidt static void __init pnv_init_early(void) 6355190f88SBenjamin Herrenschmidt { 643fafe9c2SBenjamin Herrenschmidt /* 653fafe9c2SBenjamin Herrenschmidt * Initialize the LPC bus now so that legacy serial 663fafe9c2SBenjamin Herrenschmidt * ports can be found on it 673fafe9c2SBenjamin Herrenschmidt */ 683fafe9c2SBenjamin Herrenschmidt opal_lpc_init(); 693fafe9c2SBenjamin Herrenschmidt 70daea1175SBenjamin Herrenschmidt #ifdef CONFIG_HVC_OPAL 71daea1175SBenjamin Herrenschmidt if (firmware_has_feature(FW_FEATURE_OPAL)) 72daea1175SBenjamin Herrenschmidt hvc_opal_init_early(); 73daea1175SBenjamin Herrenschmidt else 74daea1175SBenjamin Herrenschmidt #endif 75daea1175SBenjamin Herrenschmidt add_preferred_console("hvc", 0, NULL); 7655190f88SBenjamin Herrenschmidt } 7755190f88SBenjamin Herrenschmidt 7855190f88SBenjamin Herrenschmidt static void __init pnv_init_IRQ(void) 7955190f88SBenjamin Herrenschmidt { 8055190f88SBenjamin Herrenschmidt xics_init(); 8155190f88SBenjamin Herrenschmidt 8255190f88SBenjamin Herrenschmidt WARN_ON(!ppc_md.get_irq); 8355190f88SBenjamin Herrenschmidt } 8455190f88SBenjamin Herrenschmidt 8555190f88SBenjamin Herrenschmidt static void pnv_show_cpuinfo(struct seq_file *m) 8655190f88SBenjamin Herrenschmidt { 8755190f88SBenjamin Herrenschmidt struct device_node *root; 8855190f88SBenjamin Herrenschmidt const char *model = ""; 8955190f88SBenjamin Herrenschmidt 9055190f88SBenjamin Herrenschmidt root = of_find_node_by_path("/"); 9155190f88SBenjamin Herrenschmidt if (root) 9255190f88SBenjamin Herrenschmidt model = of_get_property(root, "model", NULL); 9355190f88SBenjamin Herrenschmidt seq_printf(m, "machine\t\t: PowerNV %s\n", model); 9475b93da4SBenjamin Herrenschmidt if (firmware_has_feature(FW_FEATURE_OPALv3)) 9575b93da4SBenjamin Herrenschmidt seq_printf(m, "firmware\t: OPAL v3\n"); 9675b93da4SBenjamin Herrenschmidt else if (firmware_has_feature(FW_FEATURE_OPALv2)) 9714a43e69SBenjamin Herrenschmidt seq_printf(m, "firmware\t: OPAL v2\n"); 9814a43e69SBenjamin Herrenschmidt else if (firmware_has_feature(FW_FEATURE_OPAL)) 9914a43e69SBenjamin Herrenschmidt seq_printf(m, "firmware\t: OPAL v1\n"); 10014a43e69SBenjamin Herrenschmidt else 10114a43e69SBenjamin Herrenschmidt seq_printf(m, "firmware\t: BML\n"); 10255190f88SBenjamin Herrenschmidt of_node_put(root); 10355190f88SBenjamin Herrenschmidt } 10455190f88SBenjamin Herrenschmidt 1052196c6f1SVasant Hegde static void pnv_prepare_going_down(void) 1062196c6f1SVasant Hegde { 1072196c6f1SVasant Hegde /* 1082196c6f1SVasant Hegde * Disable all notifiers from OPAL, we can't 1092196c6f1SVasant Hegde * service interrupts anymore anyway 1102196c6f1SVasant Hegde */ 1112196c6f1SVasant Hegde opal_notifier_disable(); 1122196c6f1SVasant Hegde 1132196c6f1SVasant Hegde /* Soft disable interrupts */ 1142196c6f1SVasant Hegde local_irq_disable(); 1152196c6f1SVasant Hegde 1162196c6f1SVasant Hegde /* 1172196c6f1SVasant Hegde * Return secondary CPUs to firwmare if a flash update 1182196c6f1SVasant Hegde * is pending otherwise we will get all sort of error 1192196c6f1SVasant Hegde * messages about CPU being stuck etc.. This will also 1202196c6f1SVasant Hegde * have the side effect of hard disabling interrupts so 1212196c6f1SVasant Hegde * past this point, the kernel is effectively dead. 1222196c6f1SVasant Hegde */ 1232196c6f1SVasant Hegde opal_flash_term_callback(); 1242196c6f1SVasant Hegde } 1252196c6f1SVasant Hegde 126ec27329fSBenjamin Herrenschmidt static void __noreturn pnv_restart(char *cmd) 12755190f88SBenjamin Herrenschmidt { 128ec27329fSBenjamin Herrenschmidt long rc = OPAL_BUSY; 129ec27329fSBenjamin Herrenschmidt 1302196c6f1SVasant Hegde pnv_prepare_going_down(); 131e8e71fa4SGavin Shan 132ec27329fSBenjamin Herrenschmidt while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) { 133ec27329fSBenjamin Herrenschmidt rc = opal_cec_reboot(); 134ec27329fSBenjamin Herrenschmidt if (rc == OPAL_BUSY_EVENT) 135ec27329fSBenjamin Herrenschmidt opal_poll_events(NULL); 136ec27329fSBenjamin Herrenschmidt else 137ec27329fSBenjamin Herrenschmidt mdelay(10); 138ec27329fSBenjamin Herrenschmidt } 139ec27329fSBenjamin Herrenschmidt for (;;) 140ec27329fSBenjamin Herrenschmidt opal_poll_events(NULL); 14155190f88SBenjamin Herrenschmidt } 14255190f88SBenjamin Herrenschmidt 143ec27329fSBenjamin Herrenschmidt static void __noreturn pnv_power_off(void) 14455190f88SBenjamin Herrenschmidt { 145ec27329fSBenjamin Herrenschmidt long rc = OPAL_BUSY; 146ec27329fSBenjamin Herrenschmidt 1472196c6f1SVasant Hegde pnv_prepare_going_down(); 148e8e71fa4SGavin Shan 149ec27329fSBenjamin Herrenschmidt while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) { 150ec27329fSBenjamin Herrenschmidt rc = opal_cec_power_down(0); 151ec27329fSBenjamin Herrenschmidt if (rc == OPAL_BUSY_EVENT) 152ec27329fSBenjamin Herrenschmidt opal_poll_events(NULL); 153ec27329fSBenjamin Herrenschmidt else 154ec27329fSBenjamin Herrenschmidt mdelay(10); 155ec27329fSBenjamin Herrenschmidt } 156ec27329fSBenjamin Herrenschmidt for (;;) 157ec27329fSBenjamin Herrenschmidt opal_poll_events(NULL); 15855190f88SBenjamin Herrenschmidt } 15955190f88SBenjamin Herrenschmidt 160ec27329fSBenjamin Herrenschmidt static void __noreturn pnv_halt(void) 16155190f88SBenjamin Herrenschmidt { 162ec27329fSBenjamin Herrenschmidt pnv_power_off(); 16355190f88SBenjamin Herrenschmidt } 16455190f88SBenjamin Herrenschmidt 16555190f88SBenjamin Herrenschmidt static void pnv_progress(char *s, unsigned short hex) 16655190f88SBenjamin Herrenschmidt { 16755190f88SBenjamin Herrenschmidt } 16855190f88SBenjamin Herrenschmidt 169cd15b048SBenjamin Herrenschmidt static int pnv_dma_set_mask(struct device *dev, u64 dma_mask) 170cd15b048SBenjamin Herrenschmidt { 171cd15b048SBenjamin Herrenschmidt if (dev_is_pci(dev)) 172cd15b048SBenjamin Herrenschmidt return pnv_pci_dma_set_mask(to_pci_dev(dev), dma_mask); 173cd15b048SBenjamin Herrenschmidt return __dma_set_mask(dev, dma_mask); 174cd15b048SBenjamin Herrenschmidt } 175cd15b048SBenjamin Herrenschmidt 17673ed148aSBenjamin Herrenschmidt static void pnv_shutdown(void) 17773ed148aSBenjamin Herrenschmidt { 17873ed148aSBenjamin Herrenschmidt /* Let the PCI code clear up IODA tables */ 17973ed148aSBenjamin Herrenschmidt pnv_pci_shutdown(); 18073ed148aSBenjamin Herrenschmidt 181f7d98d18SVasant Hegde /* 182f7d98d18SVasant Hegde * Stop OPAL activity: Unregister all OPAL interrupts so they 183f7d98d18SVasant Hegde * don't fire up while we kexec and make sure all potentially 184f7d98d18SVasant Hegde * DMA'ing ops are complete (such as dump retrieval). 18573ed148aSBenjamin Herrenschmidt */ 18673ed148aSBenjamin Herrenschmidt opal_shutdown(); 18773ed148aSBenjamin Herrenschmidt } 18873ed148aSBenjamin Herrenschmidt 18955190f88SBenjamin Herrenschmidt #ifdef CONFIG_KEXEC 190298b34d7SBenjamin Herrenschmidt static void pnv_kexec_wait_secondaries_down(void) 191298b34d7SBenjamin Herrenschmidt { 192298b34d7SBenjamin Herrenschmidt int my_cpu, i, notified = -1; 193298b34d7SBenjamin Herrenschmidt 194298b34d7SBenjamin Herrenschmidt my_cpu = get_cpu(); 195298b34d7SBenjamin Herrenschmidt 196298b34d7SBenjamin Herrenschmidt for_each_online_cpu(i) { 197298b34d7SBenjamin Herrenschmidt uint8_t status; 198298b34d7SBenjamin Herrenschmidt int64_t rc; 199298b34d7SBenjamin Herrenschmidt 200298b34d7SBenjamin Herrenschmidt if (i == my_cpu) 201298b34d7SBenjamin Herrenschmidt continue; 202298b34d7SBenjamin Herrenschmidt 203298b34d7SBenjamin Herrenschmidt for (;;) { 204298b34d7SBenjamin Herrenschmidt rc = opal_query_cpu_status(get_hard_smp_processor_id(i), 205298b34d7SBenjamin Herrenschmidt &status); 206298b34d7SBenjamin Herrenschmidt if (rc != OPAL_SUCCESS || status != OPAL_THREAD_STARTED) 207298b34d7SBenjamin Herrenschmidt break; 208298b34d7SBenjamin Herrenschmidt barrier(); 209298b34d7SBenjamin Herrenschmidt if (i != notified) { 210298b34d7SBenjamin Herrenschmidt printk(KERN_INFO "kexec: waiting for cpu %d " 211298b34d7SBenjamin Herrenschmidt "(physical %d) to enter OPAL\n", 212298b34d7SBenjamin Herrenschmidt i, paca[i].hw_cpu_id); 213298b34d7SBenjamin Herrenschmidt notified = i; 214298b34d7SBenjamin Herrenschmidt } 215298b34d7SBenjamin Herrenschmidt } 216298b34d7SBenjamin Herrenschmidt } 217298b34d7SBenjamin Herrenschmidt } 218298b34d7SBenjamin Herrenschmidt 21955190f88SBenjamin Herrenschmidt static void pnv_kexec_cpu_down(int crash_shutdown, int secondary) 22055190f88SBenjamin Herrenschmidt { 22155190f88SBenjamin Herrenschmidt xics_kexec_teardown_cpu(secondary); 22213906db6SBenjamin Herrenschmidt 223298b34d7SBenjamin Herrenschmidt /* On OPAL v3, we return all CPUs to firmware */ 224298b34d7SBenjamin Herrenschmidt 225298b34d7SBenjamin Herrenschmidt if (!firmware_has_feature(FW_FEATURE_OPALv3)) 226298b34d7SBenjamin Herrenschmidt return; 227298b34d7SBenjamin Herrenschmidt 228298b34d7SBenjamin Herrenschmidt if (secondary) { 22913906db6SBenjamin Herrenschmidt /* Return secondary CPUs to firmware on OPAL v3 */ 23013906db6SBenjamin Herrenschmidt mb(); 23113906db6SBenjamin Herrenschmidt get_paca()->kexec_state = KEXEC_STATE_REAL_MODE; 23213906db6SBenjamin Herrenschmidt mb(); 23313906db6SBenjamin Herrenschmidt 23413906db6SBenjamin Herrenschmidt /* Return the CPU to OPAL */ 23513906db6SBenjamin Herrenschmidt opal_return_cpu(); 236298b34d7SBenjamin Herrenschmidt } else if (crash_shutdown) { 237298b34d7SBenjamin Herrenschmidt /* 238298b34d7SBenjamin Herrenschmidt * On crash, we don't wait for secondaries to go 239298b34d7SBenjamin Herrenschmidt * down as they might be unreachable or hung, so 240298b34d7SBenjamin Herrenschmidt * instead we just wait a bit and move on. 241298b34d7SBenjamin Herrenschmidt */ 242298b34d7SBenjamin Herrenschmidt mdelay(1); 243298b34d7SBenjamin Herrenschmidt } else { 244298b34d7SBenjamin Herrenschmidt /* Primary waits for the secondaries to have reached OPAL */ 245298b34d7SBenjamin Herrenschmidt pnv_kexec_wait_secondaries_down(); 24613906db6SBenjamin Herrenschmidt } 24755190f88SBenjamin Herrenschmidt } 24855190f88SBenjamin Herrenschmidt #endif /* CONFIG_KEXEC */ 24955190f88SBenjamin Herrenschmidt 2506d97d7a2SAnton Blanchard #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE 2516d97d7a2SAnton Blanchard static unsigned long pnv_memory_block_size(void) 2526d97d7a2SAnton Blanchard { 2536d97d7a2SAnton Blanchard return 256UL * 1024 * 1024; 2546d97d7a2SAnton Blanchard } 2556d97d7a2SAnton Blanchard #endif 2566d97d7a2SAnton Blanchard 257628daa8dSBenjamin Herrenschmidt static void __init pnv_setup_machdep_opal(void) 258628daa8dSBenjamin Herrenschmidt { 259628daa8dSBenjamin Herrenschmidt ppc_md.get_boot_time = opal_get_boot_time; 260628daa8dSBenjamin Herrenschmidt ppc_md.get_rtc_time = opal_get_rtc_time; 261628daa8dSBenjamin Herrenschmidt ppc_md.set_rtc_time = opal_set_rtc_time; 262628daa8dSBenjamin Herrenschmidt ppc_md.restart = pnv_restart; 263628daa8dSBenjamin Herrenschmidt ppc_md.power_off = pnv_power_off; 264628daa8dSBenjamin Herrenschmidt ppc_md.halt = pnv_halt; 265ed79ba9eSBenjamin Herrenschmidt ppc_md.machine_check_exception = opal_machine_check; 26655672ecfSMahesh Salgaonkar ppc_md.mce_check_early_recovery = opal_mce_check_early_recovery; 267*0869b6fdSMahesh Salgaonkar ppc_md.hmi_exception_early = opal_hmi_exception_early; 268*0869b6fdSMahesh Salgaonkar ppc_md.handle_hmi_exception = opal_handle_hmi_exception; 269628daa8dSBenjamin Herrenschmidt } 270628daa8dSBenjamin Herrenschmidt 271628daa8dSBenjamin Herrenschmidt #ifdef CONFIG_PPC_POWERNV_RTAS 272628daa8dSBenjamin Herrenschmidt static void __init pnv_setup_machdep_rtas(void) 273628daa8dSBenjamin Herrenschmidt { 274628daa8dSBenjamin Herrenschmidt if (rtas_token("get-time-of-day") != RTAS_UNKNOWN_SERVICE) { 275628daa8dSBenjamin Herrenschmidt ppc_md.get_boot_time = rtas_get_boot_time; 276628daa8dSBenjamin Herrenschmidt ppc_md.get_rtc_time = rtas_get_rtc_time; 277628daa8dSBenjamin Herrenschmidt ppc_md.set_rtc_time = rtas_set_rtc_time; 278628daa8dSBenjamin Herrenschmidt } 279628daa8dSBenjamin Herrenschmidt ppc_md.restart = rtas_restart; 280628daa8dSBenjamin Herrenschmidt ppc_md.power_off = rtas_power_off; 281628daa8dSBenjamin Herrenschmidt ppc_md.halt = rtas_halt; 282628daa8dSBenjamin Herrenschmidt } 283628daa8dSBenjamin Herrenschmidt #endif /* CONFIG_PPC_POWERNV_RTAS */ 284628daa8dSBenjamin Herrenschmidt 28555190f88SBenjamin Herrenschmidt static int __init pnv_probe(void) 28655190f88SBenjamin Herrenschmidt { 28755190f88SBenjamin Herrenschmidt unsigned long root = of_get_flat_dt_root(); 28855190f88SBenjamin Herrenschmidt 28955190f88SBenjamin Herrenschmidt if (!of_flat_dt_is_compatible(root, "ibm,powernv")) 29055190f88SBenjamin Herrenschmidt return 0; 29155190f88SBenjamin Herrenschmidt 29255190f88SBenjamin Herrenschmidt hpte_init_native(); 29355190f88SBenjamin Herrenschmidt 294628daa8dSBenjamin Herrenschmidt if (firmware_has_feature(FW_FEATURE_OPAL)) 295628daa8dSBenjamin Herrenschmidt pnv_setup_machdep_opal(); 296628daa8dSBenjamin Herrenschmidt #ifdef CONFIG_PPC_POWERNV_RTAS 297628daa8dSBenjamin Herrenschmidt else if (rtas.base) 298628daa8dSBenjamin Herrenschmidt pnv_setup_machdep_rtas(); 299628daa8dSBenjamin Herrenschmidt #endif /* CONFIG_PPC_POWERNV_RTAS */ 300628daa8dSBenjamin Herrenschmidt 30155190f88SBenjamin Herrenschmidt pr_debug("PowerNV detected !\n"); 30255190f88SBenjamin Herrenschmidt 30355190f88SBenjamin Herrenschmidt return 1; 30455190f88SBenjamin Herrenschmidt } 30555190f88SBenjamin Herrenschmidt 306fb5153d0SGautham R. Shenoy /* 307fb5153d0SGautham R. Shenoy * Returns the cpu frequency for 'cpu' in Hz. This is used by 308fb5153d0SGautham R. Shenoy * /proc/cpuinfo 309fb5153d0SGautham R. Shenoy */ 310fb5153d0SGautham R. Shenoy unsigned long pnv_get_proc_freq(unsigned int cpu) 311fb5153d0SGautham R. Shenoy { 312fb5153d0SGautham R. Shenoy unsigned long ret_freq; 313fb5153d0SGautham R. Shenoy 314fb5153d0SGautham R. Shenoy ret_freq = cpufreq_quick_get(cpu) * 1000ul; 315fb5153d0SGautham R. Shenoy 316fb5153d0SGautham R. Shenoy /* 317fb5153d0SGautham R. Shenoy * If the backend cpufreq driver does not exist, 318fb5153d0SGautham R. Shenoy * then fallback to old way of reporting the clockrate. 319fb5153d0SGautham R. Shenoy */ 320fb5153d0SGautham R. Shenoy if (!ret_freq) 321fb5153d0SGautham R. Shenoy ret_freq = ppc_proc_freq; 322fb5153d0SGautham R. Shenoy return ret_freq; 323fb5153d0SGautham R. Shenoy } 324fb5153d0SGautham R. Shenoy 32555190f88SBenjamin Herrenschmidt define_machine(powernv) { 32655190f88SBenjamin Herrenschmidt .name = "PowerNV", 32755190f88SBenjamin Herrenschmidt .probe = pnv_probe, 32855190f88SBenjamin Herrenschmidt .init_early = pnv_init_early, 329628daa8dSBenjamin Herrenschmidt .setup_arch = pnv_setup_arch, 33055190f88SBenjamin Herrenschmidt .init_IRQ = pnv_init_IRQ, 33155190f88SBenjamin Herrenschmidt .show_cpuinfo = pnv_show_cpuinfo, 332fb5153d0SGautham R. Shenoy .get_proc_freq = pnv_get_proc_freq, 33355190f88SBenjamin Herrenschmidt .progress = pnv_progress, 33473ed148aSBenjamin Herrenschmidt .machine_shutdown = pnv_shutdown, 335591ac0cbSNicolas Pitre .power_save = power7_idle, 33655190f88SBenjamin Herrenschmidt .calibrate_decr = generic_calibrate_decr, 337cd15b048SBenjamin Herrenschmidt .dma_set_mask = pnv_dma_set_mask, 33855190f88SBenjamin Herrenschmidt #ifdef CONFIG_KEXEC 33955190f88SBenjamin Herrenschmidt .kexec_cpu_down = pnv_kexec_cpu_down, 34055190f88SBenjamin Herrenschmidt #endif 3416d97d7a2SAnton Blanchard #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE 3426d97d7a2SAnton Blanchard .memory_block_size = pnv_memory_block_size, 3436d97d7a2SAnton Blanchard #endif 34455190f88SBenjamin Herrenschmidt }; 345