diff options
Diffstat (limited to 'arch/powerpc/sysdev/xive/xive-internal.h')
| -rw-r--r-- | arch/powerpc/sysdev/xive/xive-internal.h | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/xive/xive-internal.h b/arch/powerpc/sysdev/xive/xive-internal.h index d07ef2d29caf..fe6d95d54af9 100644 --- a/arch/powerpc/sysdev/xive/xive-internal.h +++ b/arch/powerpc/sysdev/xive/xive-internal.h @@ -1,14 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2016,2017 IBM Corporation. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef __XIVE_INTERNAL_H #define __XIVE_INTERNAL_H +/* + * A "disabled" interrupt should never fire, to catch problems + * we set its logical number to this + */ +#define XIVE_BAD_IRQ 0x7fffffff +#define XIVE_MAX_IRQ (XIVE_BAD_IRQ - 1) + /* Each CPU carry one of these with various per-CPU state */ struct xive_cpu { #ifdef CONFIG_SMP @@ -37,26 +40,39 @@ struct xive_cpu { struct xive_ops { int (*populate_irq_data)(u32 hw_irq, struct xive_irq_data *data); int (*configure_irq)(u32 hw_irq, u32 target, u8 prio, u32 sw_irq); + int (*get_irq_config)(u32 hw_irq, u32 *target, u8 *prio, + u32 *sw_irq); int (*setup_queue)(unsigned int cpu, struct xive_cpu *xc, u8 prio); void (*cleanup_queue)(unsigned int cpu, struct xive_cpu *xc, u8 prio); + void (*prepare_cpu)(unsigned int cpu, struct xive_cpu *xc); void (*setup_cpu)(unsigned int cpu, struct xive_cpu *xc); void (*teardown_cpu)(unsigned int cpu, struct xive_cpu *xc); bool (*match)(struct device_node *np); void (*shutdown)(void); void (*update_pending)(struct xive_cpu *xc); - void (*eoi)(u32 hw_irq); void (*sync_source)(u32 hw_irq); + u64 (*esb_rw)(u32 hw_irq, u32 offset, u64 data, bool write); #ifdef CONFIG_SMP int (*get_ipi)(unsigned int cpu, struct xive_cpu *xc); void (*put_ipi)(unsigned int cpu, struct xive_cpu *xc); #endif + int (*debug_show)(struct seq_file *m, void *private); + int (*debug_create)(struct dentry *xive_dir); const char *name; }; -bool xive_core_init(const struct xive_ops *ops, void __iomem *area, u32 offset, - u8 max_prio); +bool xive_core_init(struct device_node *np, const struct xive_ops *ops, + void __iomem *area, u32 offset, u8 max_prio); +__be32 *xive_queue_page_alloc(unsigned int cpu, u32 queue_shift); +int xive_core_debug_init(void); + +static inline u32 xive_alloc_order(u32 queue_shift) +{ + return (queue_shift > PAGE_SHIFT) ? (queue_shift - PAGE_SHIFT) : 0; +} extern bool xive_cmdline_disabled; +extern bool xive_has_save_restore; #endif /* __XIVE_INTERNAL_H */ |