1/* 2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights 3 * reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the NetLogic 9 * license below: 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in 19 * the documentation and/or other materials provided with the 20 * distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#ifndef _NETLOGIC_COMMON_H_ 36#define _NETLOGIC_COMMON_H_ 37 38/* 39 * Common SMP definitions 40 */ 41#define RESET_VEC_PHYS 0x1fc00000 42#define RESET_VEC_SIZE 8192 /* 8KB reset code and data */ 43#define RESET_DATA_PHYS (RESET_VEC_PHYS + (1<<10)) 44 45/* Offsets of parameters in the RESET_DATA_PHYS area */ 46#define BOOT_THREAD_MODE 0 47#define BOOT_NMI_LOCK 4 48#define BOOT_NMI_HANDLER 8 49 50/* CPU ready flags for each CPU */ 51#define BOOT_CPU_READY 2048 52 53#ifndef __ASSEMBLY__ 54#include <linux/cpumask.h> 55#include <linux/spinlock.h> 56#include <asm/irq.h> 57#include <asm/mach-netlogic/multi-node.h> 58 59struct irq_desc; 60void nlm_smp_function_ipi_handler(struct irq_desc *desc); 61void nlm_smp_resched_ipi_handler(struct irq_desc *desc); 62void nlm_smp_irq_init(int hwcpuid); 63void nlm_boot_secondary_cpus(void); 64int nlm_wakeup_secondary_cpus(void); 65void nlm_rmiboot_preboot(void); 66void nlm_percpu_init(int hwcpuid); 67 68static inline void * 69nlm_get_boot_data(int offset) 70{ 71 return (void *)(CKSEG1ADDR(RESET_DATA_PHYS) + offset); 72} 73 74static inline void 75nlm_set_nmi_handler(void *handler) 76{ 77 void *nmih = nlm_get_boot_data(BOOT_NMI_HANDLER); 78 79 *(int64_t *)nmih = (long)handler; 80} 81 82/* 83 * Misc. 84 */ 85void nlm_init_boot_cpu(void); 86unsigned int nlm_get_cpu_frequency(void); 87extern struct plat_smp_ops nlm_smp_ops; 88extern char nlm_reset_entry[], nlm_reset_entry_end[]; 89 90/* SWIOTLB */ 91extern struct dma_map_ops nlm_swiotlb_dma_ops; 92 93extern unsigned int nlm_threads_per_core; 94extern cpumask_t nlm_cpumask; 95 96struct irq_data; 97uint64_t nlm_pci_irqmask(int node); 98void nlm_setup_pic_irq(int node, int picirq, int irq, int irt); 99void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *)); 100 101#ifdef CONFIG_PCI_MSI 102void nlm_dispatch_msi(int node, int lirq); 103void nlm_dispatch_msix(int node, int msixirq); 104#endif 105 106/* 107 * The NR_IRQs is divided between nodes, each of them has a separate irq space 108 */ 109static inline int nlm_irq_to_xirq(int node, int irq) 110{ 111 return node * NR_IRQS / NLM_NR_NODES + irq; 112} 113 114#ifdef CONFIG_CPU_XLR 115#define nlm_cores_per_node() 8 116#else 117static inline int nlm_cores_per_node(void) 118{ 119 return ((read_c0_prid() & PRID_IMP_MASK) 120 == PRID_IMP_NETLOGIC_XLP9XX) ? 32 : 8; 121} 122#endif 123static inline int nlm_threads_per_node(void) 124{ 125 return nlm_cores_per_node() * NLM_THREADS_PER_CORE; 126} 127 128static inline int nlm_hwtid_to_node(int hwtid) 129{ 130 return hwtid / nlm_threads_per_node(); 131} 132 133extern int nlm_cpu_ready[]; 134#endif /* __ASSEMBLY__ */ 135#endif /* _NETLOGIC_COMMON_H_ */ 136