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MIPS: Kill RM7K & RM9K IRQ Code 

RM7000 IRQ driver never got really used by any of the platform,
and rm9k_cpu_irq_init only exist in a header.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Jiaxun Yang 2020-03-26 14:17:00 +08:00 committed by Thomas Bogendoerfer
parent c2b49a3237
commit 0ea33321ff
5 changed files with 0 additions and 57 deletions
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3
arch/mips/Kconfig
View File

@ -1256,9 +1256,6 @@ config SYS_SUPPORTS_HUGETLBFS
config MIPS_HUGE_TLB_SUPPORT
def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
config IRQ_CPU_RM7K
bool
config IRQ_MSP_SLP
bool

2
arch/mips/include/asm/irq_cpu.h
View File

@ -10,8 +10,6 @@
#define _ASM_IRQ_CPU_H
extern void mips_cpu_irq_init(void);
extern void rm7k_cpu_irq_init(void);
extern void rm9k_cpu_irq_init(void);
#ifdef CONFIG_IRQ_DOMAIN
struct device_node;

6
arch/mips/include/asm/mach-generic/irq.h
View File

@ -28,12 +28,6 @@
#endif /* CONFIG_I8259 */
#endif
#ifdef CONFIG_IRQ_CPU_RM7K
#ifndef RM7K_CPU_IRQ_BASE
#define RM7K_CPU_IRQ_BASE (MIPS_CPU_IRQ_BASE+8)
#endif
#endif
#endif /* CONFIG_IRQ_MIPS_CPU */
#endif /* __ASM_MACH_GENERIC_IRQ_H */

1
arch/mips/kernel/Makefile
View File

@ -71,7 +71,6 @@ obj-$(CONFIG_MIPS_VPE_APSP_API) += rtlx.o
obj-$(CONFIG_MIPS_VPE_APSP_API_CMP) += rtlx-cmp.o
obj-$(CONFIG_MIPS_VPE_APSP_API_MT) += rtlx-mt.o
obj-$(CONFIG_IRQ_CPU_RM7K) += irq-rm7000.o
obj-$(CONFIG_MIPS_MSC) += irq-msc01.o
obj-$(CONFIG_IRQ_TXX9) += irq_txx9.o
obj-$(CONFIG_IRQ_GT641XX) += irq-gt641xx.o

45
arch/mips/kernel/irq-rm7000.c
View File

@ -1,45 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2003 Ralf Baechle
*
* Handler for RM7000 extended interrupts. These are a non-standard
* feature so we handle them separately from standard interrupts.
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <asm/irq_cpu.h>
#include <asm/mipsregs.h>
static inline void unmask_rm7k_irq(struct irq_data *d)
{
set_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE));
}
static inline void mask_rm7k_irq(struct irq_data *d)
{
clear_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE));
}
static struct irq_chip rm7k_irq_controller = {
.name = "RM7000",
.irq_ack = mask_rm7k_irq,
.irq_mask = mask_rm7k_irq,
.irq_mask_ack = mask_rm7k_irq,
.irq_unmask = unmask_rm7k_irq,
.irq_eoi = unmask_rm7k_irq
};
void __init rm7k_cpu_irq_init(void)
{
int base = RM7K_CPU_IRQ_BASE;
int i;
clear_c0_intcontrol(0x00000f00); /* Mask all */
for (i = base; i < base + 4; i++)
irq_set_chip_and_handler(i, &rm7k_irq_controller,
handle_percpu_irq);
}