smp-mt.c (9cdf083f981b8d37b3212400a359368661385099) smp-mt.c (97dcb82de6cc99a5669eb8e342efc24cceb1e77e)
1/*
2 * This program is free software; you can distribute it and/or modify it
3 * under the terms of the GNU General Public License (Version 2) as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope it will be useful, but WITHOUT
7 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License

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30#include <asm/system.h>
31#include <asm/hardirq.h>
32#include <asm/mmu_context.h>
33#include <asm/smp.h>
34#include <asm/time.h>
35#include <asm/mipsregs.h>
36#include <asm/mipsmtregs.h>
37#include <asm/mips_mt.h>
1/*
2 * This program is free software; you can distribute it and/or modify it
3 * under the terms of the GNU General Public License (Version 2) as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope it will be useful, but WITHOUT
7 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License

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30#include <asm/system.h>
31#include <asm/hardirq.h>
32#include <asm/mmu_context.h>
33#include <asm/smp.h>
34#include <asm/time.h>
35#include <asm/mipsregs.h>
36#include <asm/mipsmtregs.h>
37#include <asm/mips_mt.h>
38#include <asm/mips-boards/maltaint.h> /* This is f*cking wrong */
39
40#define MIPS_CPU_IPI_RESCHED_IRQ 0
41#define MIPS_CPU_IPI_CALL_IRQ 1
42
43static int cpu_ipi_resched_irq, cpu_ipi_call_irq;
44
45#if 0
46static void dump_mtregisters(int vpe, int tc)

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103 }
104 }
105
106 clear_c0_mvpcontrol(MVPCONTROL_VPC);
107}
108
109static void ipi_resched_dispatch(void)
110{
38
39#define MIPS_CPU_IPI_RESCHED_IRQ 0
40#define MIPS_CPU_IPI_CALL_IRQ 1
41
42static int cpu_ipi_resched_irq, cpu_ipi_call_irq;
43
44#if 0
45static void dump_mtregisters(int vpe, int tc)

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102 }
103 }
104
105 clear_c0_mvpcontrol(MVPCONTROL_VPC);
106}
107
108static void ipi_resched_dispatch(void)
109{
111 do_IRQ(MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ);
110 do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ);
112}
113
114static void ipi_call_dispatch(void)
115{
111}
112
113static void ipi_call_dispatch(void)
114{
116 do_IRQ(MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ);
115 do_IRQ(MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ);
117}
118
119static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
120{
121 return IRQ_HANDLED;
122}
123
124static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)

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265void __init plat_prepare_cpus(unsigned int max_cpus)
266{
267 /* set up ipi interrupts */
268 if (cpu_has_vint) {
269 set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
270 set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
271 }
272
116}
117
118static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
119{
120 return IRQ_HANDLED;
121}
122
123static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)

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264void __init plat_prepare_cpus(unsigned int max_cpus)
265{
266 /* set up ipi interrupts */
267 if (cpu_has_vint) {
268 set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
269 set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
270 }
271
273 cpu_ipi_resched_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
274 cpu_ipi_call_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ;
272 cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
273 cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ;
275
276 setup_irq(cpu_ipi_resched_irq, &irq_resched);
277 setup_irq(cpu_ipi_call_irq, &irq_call);
278
279 /* need to mark IPI's as IRQ_PER_CPU */
280 irq_desc[cpu_ipi_resched_irq].status |= IRQ_PER_CPU;
281 set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
282 irq_desc[cpu_ipi_call_irq].status |= IRQ_PER_CPU;

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275 setup_irq(cpu_ipi_resched_irq, &irq_resched);
276 setup_irq(cpu_ipi_call_irq, &irq_call);
277
278 /* need to mark IPI's as IRQ_PER_CPU */
279 irq_desc[cpu_ipi_resched_irq].status |= IRQ_PER_CPU;
280 set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
281 irq_desc[cpu_ipi_call_irq].status |= IRQ_PER_CPU;

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