| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | #ifdef __KERNEL__ |
| 3 | #ifndef _ASM_POWERPC_IRQ_H |
| 4 | #define _ASM_POWERPC_IRQ_H |
| 5 | |
| 6 | /* |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #include <linux/irqdomain.h> |
| 10 | #include <linux/threads.h> |
| 11 | #include <linux/list.h> |
| 12 | #include <linux/radix-tree.h> |
| 13 | |
| 14 | #include <asm/types.h> |
| 15 | #include <linux/atomic.h> |
| 16 | |
| 17 | |
| 18 | extern atomic_t ppc_n_lost_interrupts; |
| 19 | |
| 20 | /* This number is used when no interrupt has been assigned */ |
| 21 | #define NO_IRQ (0) |
| 22 | |
| 23 | /* Total number of virq in the platform */ |
| 24 | #define NR_IRQS CONFIG_NR_IRQS |
| 25 | |
| 26 | /* Same thing, used by the generic IRQ code */ |
| 27 | #define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS |
| 28 | |
| 29 | extern irq_hw_number_t virq_to_hw(unsigned int virq); |
| 30 | |
| 31 | static __inline__ int irq_canonicalize(int irq) |
| 32 | { |
| 33 | return irq; |
| 34 | } |
| 35 | |
| 36 | extern int distribute_irqs; |
| 37 | |
| 38 | struct irqaction; |
| 39 | struct pt_regs; |
| 40 | |
| 41 | #define __ARCH_HAS_DO_SOFTIRQ |
| 42 | |
| 43 | #if defined(CONFIG_BOOKE) || defined(CONFIG_40x) |
| 44 | /* |
| 45 | * Per-cpu stacks for handling critical, debug and machine check |
| 46 | * level interrupts. |
| 47 | */ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 48 | extern void *critirq_ctx[NR_CPUS]; |
| 49 | extern void *dbgirq_ctx[NR_CPUS]; |
| 50 | extern void *mcheckirq_ctx[NR_CPUS]; |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 51 | #endif |
| 52 | |
| 53 | /* |
| 54 | * Per-cpu stacks for handling hard and soft interrupts. |
| 55 | */ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 56 | extern void *hardirq_ctx[NR_CPUS]; |
| 57 | extern void *softirq_ctx[NR_CPUS]; |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 58 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 59 | void call_do_softirq(void *sp); |
| 60 | void call_do_irq(struct pt_regs *regs, void *sp); |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 61 | extern void do_IRQ(struct pt_regs *regs); |
| 62 | extern void __init init_IRQ(void); |
| 63 | extern void __do_irq(struct pt_regs *regs); |
| 64 | |
| 65 | int irq_choose_cpu(const struct cpumask *mask); |
| 66 | |
| 67 | #endif /* _ASM_IRQ_H */ |
| 68 | #endif /* __KERNEL__ */ |