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Diffstat (limited to '')
| -rw-r--r-- | arch/mips/include/asm/netlogic/common.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h new file mode 100644 index 000000000..57616649b --- /dev/null +++ b/arch/mips/include/asm/netlogic/common.h @@ -0,0 +1,132 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _NETLOGIC_COMMON_H_ +#define _NETLOGIC_COMMON_H_ + +/* + * Common SMP definitions + */ +#define RESET_VEC_PHYS 0x1fc00000 +#define RESET_VEC_SIZE 8192 /* 8KB reset code and data */ +#define RESET_DATA_PHYS (RESET_VEC_PHYS + (1<<10)) + +/* Offsets of parameters in the RESET_DATA_PHYS area */ +#define BOOT_THREAD_MODE 0 +#define BOOT_NMI_LOCK 4 +#define BOOT_NMI_HANDLER 8 + +/* CPU ready flags for each CPU */ +#define BOOT_CPU_READY 2048 + +#ifndef __ASSEMBLY__ +#include <linux/cpumask.h> +#include <linux/spinlock.h> +#include <asm/irq.h> +#include <asm/mach-netlogic/multi-node.h> + +struct irq_desc; +void nlm_smp_function_ipi_handler(struct irq_desc *desc); +void nlm_smp_resched_ipi_handler(struct irq_desc *desc); +void nlm_smp_irq_init(int hwcpuid); +void nlm_boot_secondary_cpus(void); +int nlm_wakeup_secondary_cpus(void); +void nlm_rmiboot_preboot(void); +void nlm_percpu_init(int hwcpuid); + +static inline void * +nlm_get_boot_data(int offset) +{ + return (void *)(CKSEG1ADDR(RESET_DATA_PHYS) + offset); +} + +static inline void +nlm_set_nmi_handler(void *handler) +{ + void *nmih = nlm_get_boot_data(BOOT_NMI_HANDLER); + + *(int64_t *)nmih = (long)handler; +} + +/* + * Misc. + */ +void nlm_init_boot_cpu(void); +unsigned int nlm_get_cpu_frequency(void); +extern const struct plat_smp_ops nlm_smp_ops; +extern char nlm_reset_entry[], nlm_reset_entry_end[]; + +extern unsigned int nlm_threads_per_core; +extern cpumask_t nlm_cpumask; + +struct irq_data; +uint64_t nlm_pci_irqmask(int node); +void nlm_setup_pic_irq(int node, int picirq, int irq, int irt); +void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *)); + +#ifdef CONFIG_PCI_MSI +void nlm_dispatch_msi(int node, int lirq); +void nlm_dispatch_msix(int node, int msixirq); +#endif + +/* + * The NR_IRQs is divided between nodes, each of them has a separate irq space + */ +static inline int nlm_irq_to_xirq(int node, int irq) +{ + return node * NR_IRQS / NLM_NR_NODES + irq; +} + +#ifdef CONFIG_CPU_XLR +#define nlm_cores_per_node() 8 +#else +static inline int nlm_cores_per_node(void) +{ + return ((read_c0_prid() & PRID_IMP_MASK) + == PRID_IMP_NETLOGIC_XLP9XX) ? 32 : 8; +} +#endif +static inline int nlm_threads_per_node(void) +{ + return nlm_cores_per_node() * NLM_THREADS_PER_CORE; +} + +static inline int nlm_hwtid_to_node(int hwtid) +{ + return hwtid / nlm_threads_per_node(); +} + +extern int nlm_cpu_ready[]; +#endif /* __ASSEMBLY__ */ +#endif /* _NETLOGIC_COMMON_H_ */ |