| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | |
| 59 | struct irq_desc; |
| 60 | void nlm_smp_function_ipi_handler(struct irq_desc *desc); |
| 61 | void nlm_smp_resched_ipi_handler(struct irq_desc *desc); |
| 62 | void nlm_smp_irq_init(int hwcpuid); |
| 63 | void nlm_boot_secondary_cpus(void); |
| 64 | int nlm_wakeup_secondary_cpus(void); |
| 65 | void nlm_rmiboot_preboot(void); |
| 66 | void nlm_percpu_init(int hwcpuid); |
| 67 | |
| 68 | static inline void * |
| 69 | nlm_get_boot_data(int offset) |
| 70 | { |
| 71 | return (void *)(CKSEG1ADDR(RESET_DATA_PHYS) + offset); |
| 72 | } |
| 73 | |
| 74 | static inline void |
| 75 | nlm_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 | */ |
| 85 | void nlm_init_boot_cpu(void); |
| 86 | unsigned int nlm_get_cpu_frequency(void); |
| 87 | extern const struct plat_smp_ops nlm_smp_ops; |
| 88 | extern char nlm_reset_entry[], nlm_reset_entry_end[]; |
| 89 | |
| 90 | extern unsigned int nlm_threads_per_core; |
| 91 | extern cpumask_t nlm_cpumask; |
| 92 | |
| 93 | struct irq_data; |
| 94 | uint64_t nlm_pci_irqmask(int node); |
| 95 | void nlm_setup_pic_irq(int node, int picirq, int irq, int irt); |
| 96 | void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *)); |
| 97 | |
| 98 | #ifdef CONFIG_PCI_MSI |
| 99 | void nlm_dispatch_msi(int node, int lirq); |
| 100 | void nlm_dispatch_msix(int node, int msixirq); |
| 101 | #endif |
| 102 | |
| 103 | /* |
| 104 | * The NR_IRQs is divided between nodes, each of them has a separate irq space |
| 105 | */ |
| 106 | static inline int nlm_irq_to_xirq(int node, int irq) |
| 107 | { |
| 108 | return node * NR_IRQS / NLM_NR_NODES + irq; |
| 109 | } |
| 110 | |
| 111 | #ifdef CONFIG_CPU_XLR |
| 112 | #define nlm_cores_per_node() 8 |
| 113 | #else |
| 114 | static inline int nlm_cores_per_node(void) |
| 115 | { |
| 116 | return ((read_c0_prid() & PRID_IMP_MASK) |
| 117 | == PRID_IMP_NETLOGIC_XLP9XX) ? 32 : 8; |
| 118 | } |
| 119 | #endif |
| 120 | static inline int nlm_threads_per_node(void) |
| 121 | { |
| 122 | return nlm_cores_per_node() * NLM_THREADS_PER_CORE; |
| 123 | } |
| 124 | |
| 125 | static inline int nlm_hwtid_to_node(int hwtid) |
| 126 | { |
| 127 | return hwtid / nlm_threads_per_node(); |
| 128 | } |
| 129 | |
| 130 | extern int nlm_cpu_ready[]; |
| 131 | #endif /* __ASSEMBLY__ */ |
| 132 | #endif /* _NETLOGIC_COMMON_H_ */ |