Release 4.14 arch/mips/vr41xx/common/icu.c

/*
 *  icu.c, Interrupt Control Unit routines for the NEC VR4100 series.
 *
 *  Copyright (C) 2001-2002  MontaVista Software Inc.
 *    Author: Yoichi Yuasa <source@mvista.com>
 *  Copyright (C) 2003-2006  Yoichi Yuasa <yuasa@linux-mips.org>
 *
 *  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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/*
 * Changes:
 *  MontaVista Software Inc. <source@mvista.com>
 *  - New creation, NEC VR4122 and VR4131 are supported.
 *  - Added support for NEC VR4111 and VR4121.
 *
 *  Yoichi Yuasa <yuasa@linux-mips.org>
 *  - Coped with INTASSIGN of NEC VR4133.
 */
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/smp.h>
#include <linux/types.h>

#include <asm/cpu.h>
#include <asm/io.h>
#include <asm/vr41xx/irq.h>
#include <asm/vr41xx/vr41xx.h>


static void __iomem *icu1_base;

static void __iomem *icu2_base;


static unsigned char sysint1_assign[16] = {
	0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

static unsigned char sysint2_assign[16] = {
	2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };


#define ICU1_TYPE1_BASE 0x0b000080UL

#define ICU2_TYPE1_BASE 0x0b000200UL


#define ICU1_TYPE2_BASE 0x0f000080UL

#define ICU2_TYPE2_BASE 0x0f0000a0UL


#define ICU1_SIZE	0x20

#define ICU2_SIZE	0x1c


#define SYSINT1REG	0x00

#define PIUINTREG	0x02

#define INTASSIGN0	0x04

#define INTASSIGN1	0x06

#define GIUINTLREG	0x08

#define DSIUINTREG	0x0a

#define MSYSINT1REG	0x0c

#define MPIUINTREG	0x0e

#define MAIUINTREG	0x10

#define MKIUINTREG	0x12

#define MMACINTREG	0x12

#define MGIUINTLREG	0x14

#define MDSIUINTREG	0x16

#define NMIREG		0x18

#define SOFTREG		0x1a

#define INTASSIGN2	0x1c

#define INTASSIGN3	0x1e


#define SYSINT2REG	0x00

#define GIUINTHREG	0x02

#define FIRINTREG	0x04

#define MSYSINT2REG	0x06

#define MGIUINTHREG	0x08

#define MFIRINTREG	0x0a

#define PCIINTREG	0x0c
 
#define PCIINT0	0x0001

#define SCUINTREG	0x0e
 
#define SCUINT0	0x0001

#define CSIINTREG	0x10

#define MPCIINTREG	0x12

#define MSCUINTREG	0x14

#define MCSIINTREG	0x16

#define BCUINTREG	0x18
 
#define BCUINTR	0x0001

#define MBCUINTREG	0x1a


#define SYSINT1_IRQ_TO_PIN(x)	((x) - SYSINT1_IRQ_BASE)	
/* Pin 0-15 */

#define SYSINT2_IRQ_TO_PIN(x)	((x) - SYSINT2_IRQ_BASE)	
/* Pin 0-15 */


#define INT_TO_IRQ(x)		((x) + 2)	
/* Int0-4 -> IRQ2-6 */


#define icu1_read(offset)		readw(icu1_base + (offset))

#define icu1_write(offset, value)	writew((value), icu1_base + (offset))


#define icu2_read(offset)		readw(icu2_base + (offset))

#define icu2_write(offset, value)	writew((value), icu2_base + (offset))


#define INTASSIGN_MAX	4

#define INTASSIGN_MASK	0x0007



static inline uint16_t icu1_set(uint8_t offset, uint16_t set)
{
	uint16_t data;

	data = icu1_read(offset);
	data |= set;
	icu1_write(offset, data);

	return data;
}

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64.86%
1
33.33%
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9
24.32%
1
33.33%
Andrew Morton
4
10.81%
1
33.33%
Total
37
100.00%
3
100.00%



static inline uint16_t icu1_clear(uint8_t offset, uint16_t clear)
{
	uint16_t data;

	data = icu1_read(offset);
	data &= ~clear;
	icu1_write(offset, data);

	return data;
}

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Ralf Bächle
25
65.79%
1
33.33%
Yoichi Yuasa
9
23.68%
1
33.33%
Andrew Morton
4
10.53%
1
33.33%
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38
100.00%
3
100.00%



static inline uint16_t icu2_set(uint8_t offset, uint16_t set)
{
	uint16_t data;

	data = icu2_read(offset);
	data |= set;
	icu2_write(offset, data);

	return data;
}

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Ralf Bächle
24
64.86%
1
33.33%
Yoichi Yuasa
9
24.32%
1
33.33%
Andrew Morton
4
10.81%
1
33.33%
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37
100.00%
3
100.00%



static inline uint16_t icu2_clear(uint8_t offset, uint16_t clear)
{
	uint16_t data;

	data = icu2_read(offset);
	data &= ~clear;
	icu2_write(offset, data);

	return data;
}

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Ralf Bächle
25
65.79%
1
33.33%
Yoichi Yuasa
9
23.68%
1
33.33%
Andrew Morton
4
10.53%
1
33.33%
Total
38
100.00%
3
100.00%



void vr41xx_enable_piuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(PIU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4111 ||
	    current_cpu_type() == CPU_VR4121) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu1_set(MPIUINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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Andrew Morton
40
63.49%
2
25.00%
Yoichi Yuasa
12
19.05%
2
25.00%
Ralf Bächle
6
9.52%
2
25.00%
Thomas Gleixner
5
7.94%
2
25.00%
Total
63
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_enable_piuint);



void vr41xx_disable_piuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(PIU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4111 ||
	    current_cpu_type() == CPU_VR4121) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu1_clear(MPIUINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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Andrew Morton
31
49.21%
2
22.22%
Ralf Bächle
15
23.81%
3
33.33%
Yoichi Yuasa
12
19.05%
2
22.22%
Thomas Gleixner
5
7.94%
2
22.22%
Total
63
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_disable_piuint);



void vr41xx_enable_aiuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(AIU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4111 ||
	    current_cpu_type() == CPU_VR4121) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu1_set(MAIUINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

Contributors
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CommitProp
Andrew Morton
31
49.21%
2
22.22%
Ralf Bächle
15
23.81%
3
33.33%
Yoichi Yuasa
12
19.05%
2
22.22%
Thomas Gleixner
5
7.94%
2
22.22%
Total
63
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_enable_aiuint);



void vr41xx_disable_aiuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(AIU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4111 ||
	    current_cpu_type() == CPU_VR4121) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu1_clear(MAIUINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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Andrew Morton
32
50.79%
2
22.22%
Ralf Bächle
14
22.22%
3
33.33%
Yoichi Yuasa
12
19.05%
2
22.22%
Thomas Gleixner
5
7.94%
2
22.22%
Total
63
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_disable_aiuint);



void vr41xx_enable_kiuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(KIU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4111 ||
	    current_cpu_type() == CPU_VR4121) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu1_set(MKIUINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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31
49.21%
2
22.22%
Ralf Bächle
15
23.81%
3
33.33%
Yoichi Yuasa
12
19.05%
2
22.22%
Thomas Gleixner
5
7.94%
2
22.22%
Total
63
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_enable_kiuint);



void vr41xx_disable_kiuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(KIU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4111 ||
	    current_cpu_type() == CPU_VR4121) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu1_clear(MKIUINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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33
52.38%
2
22.22%
Ralf Bächle
13
20.63%
3
33.33%
Yoichi Yuasa
12
19.05%
2
22.22%
Thomas Gleixner
5
7.94%
2
22.22%
Total
63
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_disable_kiuint);



void vr41xx_enable_macint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(ETHERNET_IRQ);
	unsigned long flags;

	raw_spin_lock_irqsave(&desc->lock, flags);
	icu1_set(MMACINTREG, mask);
	raw_spin_unlock_irqrestore(&desc->lock, flags);
}

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44
89.80%
1
33.33%
Thomas Gleixner
5
10.20%
2
66.67%
Total
49
100.00%
3
100.00%


EXPORT_SYMBOL(vr41xx_enable_macint);



void vr41xx_disable_macint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(ETHERNET_IRQ);
	unsigned long flags;

	raw_spin_lock_irqsave(&desc->lock, flags);
	icu1_clear(MMACINTREG, mask);
	raw_spin_unlock_irqrestore(&desc->lock, flags);
}

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44
89.80%
1
33.33%
Thomas Gleixner
5
10.20%
2
66.67%
Total
49
100.00%
3
100.00%


EXPORT_SYMBOL(vr41xx_disable_macint);



void vr41xx_enable_dsiuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(DSIU_IRQ);
	unsigned long flags;

	raw_spin_lock_irqsave(&desc->lock, flags);
	icu1_set(MDSIUINTREG, mask);
	raw_spin_unlock_irqrestore(&desc->lock, flags);
}

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Andrew Morton
31
63.27%
2
25.00%
Ralf Bächle
11
22.45%
2
25.00%
Thomas Gleixner
5
10.20%
2
25.00%
Yoichi Yuasa
2
4.08%
2
25.00%
Total
49
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_enable_dsiuint);



void vr41xx_disable_dsiuint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(DSIU_IRQ);
	unsigned long flags;

	raw_spin_lock_irqsave(&desc->lock, flags);
	icu1_clear(MDSIUINTREG, mask);
	raw_spin_unlock_irqrestore(&desc->lock, flags);
}

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Andrew Morton
32
65.31%
2
25.00%
Ralf Bächle
10
20.41%
2
25.00%
Thomas Gleixner
5
10.20%
2
25.00%
Yoichi Yuasa
2
4.08%
2
25.00%
Total
49
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_disable_dsiuint);



void vr41xx_enable_firint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(FIR_IRQ);
	unsigned long flags;

	raw_spin_lock_irqsave(&desc->lock, flags);
	icu2_set(MFIRINTREG, mask);
	raw_spin_unlock_irqrestore(&desc->lock, flags);
}

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Andrew Morton
31
63.27%
2
25.00%
Ralf Bächle
11
22.45%
2
25.00%
Thomas Gleixner
5
10.20%
2
25.00%
Yoichi Yuasa
2
4.08%
2
25.00%
Total
49
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_enable_firint);



void vr41xx_disable_firint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(FIR_IRQ);
	unsigned long flags;

	raw_spin_lock_irqsave(&desc->lock, flags);
	icu2_clear(MFIRINTREG, mask);
	raw_spin_unlock_irqrestore(&desc->lock, flags);
}

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26
53.06%
2
25.00%
Ralf Bächle
16
32.65%
2
25.00%
Thomas Gleixner
5
10.20%
2
25.00%
Yoichi Yuasa
2
4.08%
2
25.00%
Total
49
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_disable_firint);



void vr41xx_enable_pciint(void)
{
	struct irq_desc *desc = irq_to_desc(PCI_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_write(MPCIINTREG, PCIINT0);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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24
35.82%
3
37.50%
Andrew Morton
22
32.84%
1
12.50%
Yoichi Yuasa
16
23.88%
2
25.00%
Thomas Gleixner
5
7.46%
2
25.00%
Total
67
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_enable_pciint);



void vr41xx_disable_pciint(void)
{
	struct irq_desc *desc = irq_to_desc(PCI_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_write(MPCIINTREG, 0);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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29
43.28%
2
22.22%
Ralf Bächle
17
25.37%
3
33.33%
Yoichi Yuasa
16
23.88%
2
22.22%
Thomas Gleixner
5
7.46%
2
22.22%
Total
67
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_disable_pciint);



void vr41xx_enable_scuint(void)
{
	struct irq_desc *desc = irq_to_desc(SCU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_write(MSCUINTREG, SCUINT0);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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28
41.79%
2
22.22%
Ralf Bächle
18
26.87%
3
33.33%
Yoichi Yuasa
16
23.88%
2
22.22%
Thomas Gleixner
5
7.46%
2
22.22%
Total
67
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_enable_scuint);



void vr41xx_disable_scuint(void)
{
	struct irq_desc *desc = irq_to_desc(SCU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_write(MSCUINTREG, 0);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

Contributors
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Andrew Morton
29
43.28%
1
12.50%
Ralf Bächle
17
25.37%
3
37.50%
Yoichi Yuasa
16
23.88%
2
25.00%
Thomas Gleixner
5
7.46%
2
25.00%
Total
67
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_disable_scuint);



void vr41xx_enable_csiint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(CSI_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_set(MCSIINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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Andrew Morton
29
42.65%
1
12.50%
Ralf Bächle
19
27.94%
3
37.50%
Yoichi Yuasa
15
22.06%
2
25.00%
Thomas Gleixner
5
7.35%
2
25.00%
Total
68
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_enable_csiint);



void vr41xx_disable_csiint(uint16_t mask)
{
	struct irq_desc *desc = irq_to_desc(CSI_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_clear(MCSIINTREG, mask);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

Contributors
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Andrew Morton
28
41.18%
1
12.50%
Ralf Bächle
20
29.41%
3
37.50%
Yoichi Yuasa
15
22.06%
2
25.00%
Thomas Gleixner
5
7.35%
2
25.00%
Total
68
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_disable_csiint);



void vr41xx_enable_bcuint(void)
{
	struct irq_desc *desc = irq_to_desc(BCU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_write(MBCUINTREG, BCUINTR);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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Andrew Morton
35
52.24%
2
22.22%
Yoichi Yuasa
16
23.88%
2
22.22%
Ralf Bächle
11
16.42%
3
33.33%
Thomas Gleixner
5
7.46%
2
22.22%
Total
67
100.00%
9
100.00%


EXPORT_SYMBOL(vr41xx_enable_bcuint);



void vr41xx_disable_bcuint(void)
{
	struct irq_desc *desc = irq_to_desc(BCU_IRQ);
	unsigned long flags;

	if (current_cpu_type() == CPU_VR4122 ||
	    current_cpu_type() == CPU_VR4131 ||
	    current_cpu_type() == CPU_VR4133) {
		raw_spin_lock_irqsave(&desc->lock, flags);
		icu2_write(MBCUINTREG, 0);
		raw_spin_unlock_irqrestore(&desc->lock, flags);
	}
}

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Andrew Morton
38
56.72%
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25.00%
Yoichi Yuasa
16
23.88%
2
25.00%
Ralf Bächle
8
11.94%
2
25.00%
Thomas Gleixner
5
7.46%
2
25.00%
Total
67
100.00%
8
100.00%


EXPORT_SYMBOL(vr41xx_disable_bcuint);



static void disable_sysint1_irq(struct irq_data *d)
{
	icu1_clear(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(d->irq));
}

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40.00%
Thomas Gleixner
6
24.00%
1
20.00%
Yoichi Yuasa
1
4.00%
1
20.00%
Atsushi Nemoto
1
4.00%
1
20.00%
Total
25
100.00%
5
100.00%



static void enable_sysint1_irq(struct irq_data *d)
{
	icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(d->irq));
}

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Andrew Morton
18
72.00%
2
50.00%
Thomas Gleixner
6
24.00%
1
25.00%
Yoichi Yuasa
1
4.00%
1
25.00%
Total
25
100.00%
4
100.00%


static struct irq_chip sysint1_irq_type = {
	.name		= "SYSINT1",
	.irq_mask	= disable_sysint1_irq,
	.irq_unmask	= enable_sysint1_irq,
};



static void disable_sysint2_irq(struct irq_data *d)
{
	icu2_clear(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(d->irq));
}

Contributors
Person
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CommitProp
Andrew Morton
17
68.00%
2
40.00%
Thomas Gleixner
6
24.00%
1
20.00%
Yoichi Yuasa
1
4.00%
1
20.00%
Atsushi Nemoto
1
4.00%
1
20.00%
Total
25
100.00%
5
100.00%



static void enable_sysint2_irq(struct irq_data *d)
{
	icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(d->irq));
}

Contributors
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CommitProp
Andrew Morton
18
72.00%
2
50.00%
Thomas Gleixner
6
24.00%
1
25.00%
Yoichi Yuasa
1
4.00%
1
25.00%
Total
25
100.00%
4
100.00%


static struct irq_chip sysint2_irq_type = {
	.name		= "SYSINT2",
	.irq_mask	= disable_sysint2_irq,
	.irq_unmask	= enable_sysint2_irq,
};



static inline int set_sysint1_assign(unsigned int irq, unsigned char assign)
{
	struct irq_desc *desc = irq_to_desc(irq);
	uint16_t intassign0, intassign1;
	unsigned int pin;

	pin = SYSINT1_IRQ_TO_PIN(irq);

	raw_spin_lock_irq(&desc->lock);

	intassign0 = icu1_read(INTASSIGN0);
	intassign1 = icu1_read(INTASSIGN1);

	switch (pin) {
	case 0:
		intassign0 &= ~INTASSIGN_MASK;
		intassign0 |= (uint16_t)assign;
		break;
	case 1:
		intassign0 &= ~(INTASSIGN_MASK << 3);
		intassign0 |= (uint16_t)assign << 3;
		break;
	case 2:
		intassign0 &= ~(INTASSIGN_MASK << 6);
		intassign0 |= (uint16_t)assign << 6;
		break;
	case 3:
		intassign0 &= ~(INTASSIGN_MASK << 9);
		intassign0 |= (uint16_t)assign << 9;
		break;
	case 8:
		intassign0 &= ~(INTASSIGN_MASK << 12);
		intassign0 |= (uint16_t)assign << 12;
		break;
	case 9:
		intassign1 &= ~INTASSIGN_MASK;
		intassign1 |= (uint16_t)assign;
		break;
	case 11:
		intassign1 &= ~(INTASSIGN_MASK << 6);
		intassign1 |= (uint16_t)assign << 6;
		break;
	case 12:
		intassign1 &= ~(INTASSIGN_MASK << 9);
		intassign1 |= (uint16_t)assign << 9;
		break;
	default:
		raw_spin_unlock_irq(&desc->lock);
		return -EINVAL;
	}

	sysint1_assign[pin] = assign;
	icu1_write(INTASSIGN0, intassign0);
	icu1_write(INTASSIGN1, intassign1);

	raw_spin_unlock_irq(&desc->lock);

	return 0;
}

Contributors
Person
Tokens
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Commits
CommitProp
Andrew Morton
255
91.73%
1
16.67%
Yoichi Yuasa
8
2.88%
1
16.67%
Roel Kluin
7
2.52%
1
16.67%
Thomas Gleixner
6
2.16%
2
33.33%
Ralf Bächle
2
0.72%
1
16.67%
Total
278
100.00%
6
100.00%



static inline int set_sysint2_assign(unsigned int irq, unsigned char assign)
{
	struct irq_desc *desc = irq_to_desc(irq);
	uint16_t intassign2, intassign3;
	unsigned int pin;

	pin = SYSINT2_IRQ_TO_PIN(irq);

	raw_spin_lock_irq(&desc->lock);

	intassign2 = icu1_read(INTASSIGN2);
	intassign3 = icu1_read(INTASSIGN3);

	switch (pin) {
	case 0:
		intassign2 &= ~INTASSIGN_MASK;
		intassign2 |= (uint16_t)assign;
		break;
	case 1:
		intassign2 &= ~(INTASSIGN_MASK << 3);
		intassign2 |= (uint16_t)assign << 3;
		break;
	case 3:
		intassign2 &= ~(INTASSIGN_MASK << 6);
		intassign2 |= (uint16_t)assign << 6;
		break;
	case 4:
		intassign2 &= ~(INTASSIGN_MASK << 9);
		intassign2 |= (uint16_t)assign << 9;
		break;
	case 5:
		intassign2 &= ~(INTASSIGN_MASK << 12);
		intassign2 |= (uint16_t)assign << 12;
		break;
	case 6:
		intassign3 &= ~INTASSIGN_MASK;
		intassign3 |= (uint16_t)assign;
		break;
	case 7:
		intassign3 &= ~(INTASSIGN_MASK << 3);
		intassign3 |= (uint16_t)assign << 3;
		break;
	case 8:
		intassign3 &= ~(INTASSIGN_MASK << 6);
		intassign3 |= (uint16_t)assign << 6;
		break;
	case 9:
		intassign3 &= ~(INTASSIGN_MASK << 9);
		intassign3 |= (uint16_t)assign << 9;
		break;
	case 10:
		intassign3 &= ~(INTASSIGN_MASK << 12);
		intassign3 |= (uint16_t)assign << 12;
		break;
	default:
		raw_spin_unlock_irq(&desc->lock);
		return -EINVAL;
	}

	sysint2_assign[pin] = assign;
	icu1_write(INTASSIGN2, intassign2);
	icu1_write(INTASSIGN3, intassign3);

	raw_spin_unlock_irq(&desc->lock);

	return 0;
}

Contributors
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Andrew Morton
291
90.37%
1
14.29%
Ralf Bächle
10
3.11%
2
28.57%
Yoichi Yuasa
8
2.48%
1
14.29%
Roel Kluin
7
2.17%
1
14.29%
Thomas Gleixner
6
1.86%
2
28.57%
Total
322
100.00%
7
100.00%



int vr41xx_set_intassign(unsigned int irq, unsigned char intassign)
{
	int retval = -EINVAL;

	if (current_cpu_type() != CPU_VR4133)
		return -EINVAL;

	if (intassign > INTASSIGN_MAX)
		return -EINVAL;

	if (irq >= SYSINT1_IRQ_BASE && irq <= SYSINT1_IRQ_LAST)
		retval = set_sysint1_assign(irq, intassign);
	else if (irq >= SYSINT2_IRQ_BASE && irq <= SYSINT2_IRQ_LAST)
		retval = set_sysint2_assign(irq, intassign);

	return retval;
}

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Andrew Morton
68
82.93%
1
33.33%
Ralf Bächle
14
17.07%
2
66.67%
Total
82
100.00%
3
100.00%


EXPORT_SYMBOL(vr41xx_set_intassign);



static int icu_get_irq(unsigned int irq)
{
	uint16_t pend1, pend2;
	uint16_t mask1, mask2;
	int i;

	pend1 = icu1_read(SYSINT1REG);
	mask1 = icu1_read(MSYSINT1REG);

	pend2 = icu2_read(SYSINT2REG);
	mask2 = icu2_read(MSYSINT2REG);

	mask1 &= pend1;
	mask2 &= pend2;

	if (mask1) {
		for (i = 0; i < 16; i++) {
			if (irq == INT_TO_IRQ(sysint1_assign[i]) && (mask1 & (1 << i)))
				return SYSINT1_IRQ(i);
		}
	}

	if (mask2) {
		for (i = 0; i < 16; i++) {
			if (irq == INT_TO_IRQ(sysint2_assign[i]) && (mask2 & (1 << i)))
				return SYSINT2_IRQ(i);
		}
	}

	printk(KERN_ERR "spurious ICU interrupt: %04x,%04x\n", pend1, pend2);

	atomic_inc(&irq_err_count);

	return -1;
}

Contributors
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Andrew Morton
88
49.72%
2
50.00%
Ralf Bächle
64
36.16%
1
25.00%
Yoichi Yuasa
25
14.12%
1
25.00%
Total
177
100.00%
4
100.00%



static int __init vr41xx_icu_init(void)
{
	unsigned long icu1_start, icu2_start;
	int i;

	switch (current_cpu_type()) {
	case CPU_VR4111:
	case CPU_VR4121:
		icu1_start = ICU1_TYPE1_BASE;
		icu2_start = ICU2_TYPE1_BASE;
		break;
	case CPU_VR4122:
	case CPU_VR4131:
	case CPU_VR4133:
		icu1_start = ICU1_TYPE2_BASE;
		icu2_start = ICU2_TYPE2_BASE;
		break;
	default:
		printk(KERN_ERR "ICU: Unexpected CPU of NEC VR4100 series\n");
		return -ENODEV;
	}

	if (request_mem_region(icu1_start, ICU1_SIZE, "ICU") == NULL)
		return -EBUSY;

	if (request_mem_region(icu2_start, ICU2_SIZE, "ICU") == NULL) {
		release_mem_region(icu1_start, ICU1_SIZE);
		return -EBUSY;
	}

	icu1_base = ioremap(icu1_start, ICU1_SIZE);
	if (icu1_base == NULL) {
		release_mem_region(icu1_start, ICU1_SIZE);
		release_mem_region(icu2_start, ICU2_SIZE);
		return -ENOMEM;
	}

	icu2_base = ioremap(icu2_start, ICU2_SIZE);
	if (icu2_base == NULL) {
		iounmap(icu1_base);
		release_mem_region(icu1_start, ICU1_SIZE);
		release_mem_region(icu2_start, ICU2_SIZE);
		return -ENOMEM;
	}

	icu1_write(MSYSINT1REG, 0);
	icu1_write(MGIUINTLREG, 0xffff);

	icu2_write(MSYSINT2REG, 0);
	icu2_write(MGIUINTHREG, 0xffff);

	for (i = SYSINT1_IRQ_BASE; i <= SYSINT1_IRQ_LAST; i++)
		irq_set_chip_and_handler(i, &sysint1_irq_type,
					 handle_level_irq);

	for (i = SYSINT2_IRQ_BASE; i <= SYSINT2_IRQ_LAST; i++)
		irq_set_chip_and_handler(i, &sysint2_irq_type,
					 handle_level_irq);

	cascade_irq(INT0_IRQ, icu_get_irq);
	cascade_irq(INT1_IRQ, icu_get_irq);
	cascade_irq(INT2_IRQ, icu_get_irq);
	cascade_irq(INT3_IRQ, icu_get_irq);
	cascade_irq(INT4_IRQ, icu_get_irq);

	return 0;
}

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CommitProp
Yoichi Yuasa
159
53.18%
1
12.50%
Andrew Morton
72
24.08%
2
25.00%
Ralf Bächle
56
18.73%
2
25.00%
Atsushi Nemoto
10
3.34%
2
25.00%
Thomas Gleixner
2
0.67%
1
12.50%
Total
299
100.00%
8
100.00%


core_initcall(vr41xx_icu_init);
Overall Contributors
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Tokens
Prop
Commits
CommitProp
Andrew Morton
1661
53.12%
3
15.79%
Yoichi Yuasa
686
21.94%
5
26.32%
Ralf Bächle
603
19.28%
3
15.79%
Thomas Gleixner
142
4.54%
3
15.79%
Atsushi Nemoto
17
0.54%
3
15.79%
Roel Kluin
14
0.45%
1
5.26%
Paul Gortmaker
4
0.13%
1
5.26%
Total
3127
100.00%
19
100.00%
Directory: arch/mips/vr41xx/common

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