common.h
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/*
* 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 struct plat_smp_ops nlm_smp_ops;
extern char nlm_reset_entry[], nlm_reset_entry_end[];
/* SWIOTLB */
extern struct dma_map_ops nlm_swiotlb_dma_ops;
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_ */