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authorPaul Mundt <lethal@linux-sh.org>2006-01-17 01:14:14 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-17 02:15:28 -0500
commitbf3a00f88c926635932c91afd90b4a0907dfbe78 (patch)
tree179a56c061461a0f3d25cd0171ba8ce90e5e7ed5 /arch/sh/kernel
parent9d44190eae97ad4c9ce30f1084e1b0dabd646df5 (diff)
[PATCH] sh: IRQ handler updates
This moves the various IRQ controller drivers into a new subdirectory, and also extends the INTC2 IRQ handler to also deal with SH7760 and SH7780 interrupts, rather than just ST-40. The old CONFIG_SH_GENERIC has also been removed from the IRQ definitions, as new ports are expected to be based off of CONFIG_SH_UNKNOWN. Since there are plenty of incompatible machvecs, CONFIG_SH_GENERIC doesn't make sense anymore. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/cpu/Makefile9
-rw-r--r--arch/sh/kernel/cpu/irq/Makefile7
-rw-r--r--arch/sh/kernel/cpu/irq/imask.c (renamed from arch/sh/kernel/cpu/irq_imask.c)16
-rw-r--r--arch/sh/kernel/cpu/irq/intc2.c284
-rw-r--r--arch/sh/kernel/cpu/irq/ipr.c (renamed from arch/sh/kernel/cpu/irq_ipr.c)217
-rw-r--r--arch/sh/kernel/cpu/irq/pint.c169
-rw-r--r--arch/sh/kernel/cpu/sh4/irq_intc2.c222
-rw-r--r--arch/sh/kernel/irq.c64
8 files changed, 536 insertions, 452 deletions
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index cd43714df61a..5bfc33bec5d0 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -2,15 +2,12 @@
2# Makefile for the Linux/SuperH CPU-specifc backends. 2# Makefile for the Linux/SuperH CPU-specifc backends.
3# 3#
4 4
5obj-y := irq_ipr.o irq_imask.o init.o bus.o 5obj-y += irq/ init.o bus.o clock.o
6 6
7obj-$(CONFIG_CPU_SH2) += sh2/ 7obj-$(CONFIG_CPU_SH2) += sh2/
8obj-$(CONFIG_CPU_SH3) += sh3/ 8obj-$(CONFIG_CPU_SH3) += sh3/
9obj-$(CONFIG_CPU_SH4) += sh4/ 9obj-$(CONFIG_CPU_SH4) += sh4/
10 10
11obj-$(CONFIG_SH_RTC) += rtc.o 11obj-$(CONFIG_SH_RTC) += rtc.o
12obj-$(CONFIG_UBC_WAKEUP) += ubc.o 12obj-$(CONFIG_UBC_WAKEUP) += ubc.o
13obj-$(CONFIG_SH_ADC) += adc.o 13obj-$(CONFIG_SH_ADC) += adc.o
14
15USE_STANDARD_AS_RULE := true
16
diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile
new file mode 100644
index 000000000000..e3cccea15e1d
--- /dev/null
+++ b/arch/sh/kernel/cpu/irq/Makefile
@@ -0,0 +1,7 @@
1#
2# Makefile for the Linux/SuperH CPU-specifc IRQ handlers.
3#
4obj-y += ipr.o imask.o
5
6obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o
7obj-$(CONFIG_CPU_HAS_INTC2_IRQ) += intc2.o
diff --git a/arch/sh/kernel/cpu/irq_imask.c b/arch/sh/kernel/cpu/irq/imask.c
index a963d00a971e..baed9a550d39 100644
--- a/arch/sh/kernel/cpu/irq_imask.c
+++ b/arch/sh/kernel/cpu/irq/imask.c
@@ -1,16 +1,12 @@
1/* $Id: irq_imask.c,v 1.1.2.1 2002/11/17 10:53:43 mrbrown Exp $ 1/*
2 * 2 * arch/sh/kernel/cpu/irq/imask.c
3 * linux/arch/sh/kernel/irq_imask.c
4 * 3 *
5 * Copyright (C) 1999, 2000 Niibe Yutaka 4 * Copyright (C) 1999, 2000 Niibe Yutaka
6 * 5 *
7 * Simple interrupt handling using IMASK of SR register. 6 * Simple interrupt handling using IMASK of SR register.
8 * 7 *
9 */ 8 */
10
11/* NOTE: Will not work on level 15 */ 9/* NOTE: Will not work on level 15 */
12
13
14#include <linux/ptrace.h> 10#include <linux/ptrace.h>
15#include <linux/errno.h> 11#include <linux/errno.h>
16#include <linux/kernel_stat.h> 12#include <linux/kernel_stat.h>
@@ -19,13 +15,11 @@
19#include <linux/interrupt.h> 15#include <linux/interrupt.h>
20#include <linux/init.h> 16#include <linux/init.h>
21#include <linux/bitops.h> 17#include <linux/bitops.h>
22
23#include <asm/system.h>
24#include <asm/irq.h>
25
26#include <linux/spinlock.h> 18#include <linux/spinlock.h>
27#include <linux/cache.h> 19#include <linux/cache.h>
28#include <linux/irq.h> 20#include <linux/irq.h>
21#include <asm/system.h>
22#include <asm/irq.h>
29 23
30/* Bitmap of IRQ masked */ 24/* Bitmap of IRQ masked */
31static unsigned long imask_mask = 0x7fff; 25static unsigned long imask_mask = 0x7fff;
@@ -40,7 +34,7 @@ static void end_imask_irq(unsigned int irq);
40#define IMASK_PRIORITY 15 34#define IMASK_PRIORITY 15
41 35
42static unsigned int startup_imask_irq(unsigned int irq) 36static unsigned int startup_imask_irq(unsigned int irq)
43{ 37{
44 /* Nothing to do */ 38 /* Nothing to do */
45 return 0; /* never anything pending */ 39 return 0; /* never anything pending */
46} 40}
diff --git a/arch/sh/kernel/cpu/irq/intc2.c b/arch/sh/kernel/cpu/irq/intc2.c
new file mode 100644
index 000000000000..06e8afab32e4
--- /dev/null
+++ b/arch/sh/kernel/cpu/irq/intc2.c
@@ -0,0 +1,284 @@
1/*
2 * Interrupt handling for INTC2-based IRQ.
3 *
4 * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
5 * Copyright (C) 2005, 2006 Paul Mundt (lethal@linux-sh.org)
6 *
7 * May be copied or modified under the terms of the GNU General Public
8 * License. See linux/COPYING for more information.
9 *
10 * These are the "new Hitachi style" interrupts, as present on the
11 * Hitachi 7751, the STM ST40 STB1, SH7760, and SH7780.
12 */
13
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/irq.h>
17#include <asm/system.h>
18#include <asm/io.h>
19#include <asm/machvec.h>
20
21struct intc2_data {
22 unsigned char msk_offset;
23 unsigned char msk_shift;
24
25 int (*clear_irq) (int);
26};
27
28static struct intc2_data intc2_data[NR_INTC2_IRQS];
29
30static void enable_intc2_irq(unsigned int irq);
31static void disable_intc2_irq(unsigned int irq);
32
33/* shutdown is same as "disable" */
34#define shutdown_intc2_irq disable_intc2_irq
35
36static void mask_and_ack_intc2(unsigned int);
37static void end_intc2_irq(unsigned int irq);
38
39static unsigned int startup_intc2_irq(unsigned int irq)
40{
41 enable_intc2_irq(irq);
42 return 0; /* never anything pending */
43}
44
45static struct hw_interrupt_type intc2_irq_type = {
46 .typename = "INTC2-IRQ",
47 .startup = startup_intc2_irq,
48 .shutdown = shutdown_intc2_irq,
49 .enable = enable_intc2_irq,
50 .disable = disable_intc2_irq,
51 .ack = mask_and_ack_intc2,
52 .end = end_intc2_irq
53};
54
55static void disable_intc2_irq(unsigned int irq)
56{
57 int irq_offset = irq - INTC2_FIRST_IRQ;
58 int msk_shift, msk_offset;
59
60 /* Sanity check */
61 if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
62 return;
63
64 msk_shift = intc2_data[irq_offset].msk_shift;
65 msk_offset = intc2_data[irq_offset].msk_offset;
66
67 ctrl_outl(1 << msk_shift,
68 INTC2_BASE + INTC2_INTMSK_OFFSET + msk_offset);
69}
70
71static void enable_intc2_irq(unsigned int irq)
72{
73 int irq_offset = irq - INTC2_FIRST_IRQ;
74 int msk_shift, msk_offset;
75
76 /* Sanity check */
77 if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
78 return;
79
80 msk_shift = intc2_data[irq_offset].msk_shift;
81 msk_offset = intc2_data[irq_offset].msk_offset;
82
83 ctrl_outl(1 << msk_shift,
84 INTC2_BASE + INTC2_INTMSKCLR_OFFSET + msk_offset);
85}
86
87static void mask_and_ack_intc2(unsigned int irq)
88{
89 disable_intc2_irq(irq);
90}
91
92static void end_intc2_irq(unsigned int irq)
93{
94 if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
95 enable_intc2_irq(irq);
96
97 if (unlikely(intc2_data[irq - INTC2_FIRST_IRQ].clear_irq))
98 intc2_data[irq - INTC2_FIRST_IRQ].clear_irq(irq);
99}
100
101/*
102 * Setup an INTC2 style interrupt.
103 * NOTE: Unlike IPR interrupts, parameters are not shifted by this code,
104 * allowing the use of the numbers straight out of the datasheet.
105 * For example:
106 * PIO1 which is INTPRI00[19,16] and INTMSK00[13]
107 * would be: ^ ^ ^ ^
108 * | | | |
109 * make_intc2_irq(84, 0, 16, 0, 13);
110 */
111void make_intc2_irq(unsigned int irq,
112 unsigned int ipr_offset, unsigned int ipr_shift,
113 unsigned int msk_offset, unsigned int msk_shift,
114 unsigned int priority)
115{
116 int irq_offset = irq - INTC2_FIRST_IRQ;
117 unsigned int flags;
118 unsigned long ipr;
119
120 if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
121 return;
122
123 disable_irq_nosync(irq);
124
125 /* Fill the data we need */
126 intc2_data[irq_offset].msk_offset = msk_offset;
127 intc2_data[irq_offset].msk_shift = msk_shift;
128 intc2_data[irq_offset].clear_irq = NULL;
129
130 /* Set the priority level */
131 local_irq_save(flags);
132
133 ipr = ctrl_inl(INTC2_BASE + INTC2_INTPRI_OFFSET + ipr_offset);
134 ipr &= ~(0xf << ipr_shift);
135 ipr |= priority << ipr_shift;
136 ctrl_outl(ipr, INTC2_BASE + INTC2_INTPRI_OFFSET + ipr_offset);
137
138 local_irq_restore(flags);
139
140 irq_desc[irq].handler = &intc2_irq_type;
141
142 disable_intc2_irq(irq);
143}
144
145static struct intc2_init {
146 unsigned short irq;
147 unsigned char ipr_offset, ipr_shift;
148 unsigned char msk_offset, msk_shift;
149 unsigned char priority;
150} intc2_init_data[] __initdata = {
151#if defined(CONFIG_CPU_SUBTYPE_ST40)
152 {64, 0, 0, 0, 0, 13}, /* PCI serr */
153 {65, 0, 4, 0, 1, 13}, /* PCI err */
154 {66, 0, 4, 0, 2, 13}, /* PCI ad */
155 {67, 0, 4, 0, 3, 13}, /* PCI pwd down */
156 {72, 0, 8, 0, 5, 13}, /* DMAC INT0 */
157 {73, 0, 8, 0, 6, 13}, /* DMAC INT1 */
158 {74, 0, 8, 0, 7, 13}, /* DMAC INT2 */
159 {75, 0, 8, 0, 8, 13}, /* DMAC INT3 */
160 {76, 0, 8, 0, 9, 13}, /* DMAC INT4 */
161 {78, 0, 8, 0, 11, 13}, /* DMAC ERR */
162 {80, 0, 12, 0, 12, 13}, /* PIO0 */
163 {84, 0, 16, 0, 13, 13}, /* PIO1 */
164 {88, 0, 20, 0, 14, 13}, /* PIO2 */
165 {112, 4, 0, 4, 0, 13}, /* Mailbox */
166 #ifdef CONFIG_CPU_SUBTYPE_ST40GX1
167 {116, 4, 4, 4, 4, 13}, /* SSC0 */
168 {120, 4, 8, 4, 8, 13}, /* IR Blaster */
169 {124, 4, 12, 4, 12, 13}, /* USB host */
170 {128, 4, 16, 4, 16, 13}, /* Video processor BLITTER */
171 {132, 4, 20, 4, 20, 13}, /* UART0 */
172 {134, 4, 20, 4, 22, 13}, /* UART2 */
173 {136, 4, 24, 4, 24, 13}, /* IO_PIO0 */
174 {140, 4, 28, 4, 28, 13}, /* EMPI */
175 {144, 8, 0, 8, 0, 13}, /* MAFE */
176 {148, 8, 4, 8, 4, 13}, /* PWM */
177 {152, 8, 8, 8, 8, 13}, /* SSC1 */
178 {156, 8, 12, 8, 12, 13}, /* IO_PIO1 */
179 {160, 8, 16, 8, 16, 13}, /* USB target */
180 {164, 8, 20, 8, 20, 13}, /* UART1 */
181 {168, 8, 24, 8, 24, 13}, /* Teletext */
182 {172, 8, 28, 8, 28, 13}, /* VideoSync VTG */
183 {173, 8, 28, 8, 29, 13}, /* VideoSync DVP0 */
184 {174, 8, 28, 8, 30, 13}, /* VideoSync DVP1 */
185#endif
186#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
187/*
188 * SH7760 INTC2-Style interrupts, vectors IRQ48-111 INTEVT 0x800-0xFE0
189 */
190 /* INTPRIO0 | INTMSK0 */
191 {48, 0, 28, 0, 31, 3}, /* IRQ 4 */
192 {49, 0, 24, 0, 30, 3}, /* IRQ 3 */
193 {50, 0, 20, 0, 29, 3}, /* IRQ 2 */
194 {51, 0, 16, 0, 28, 3}, /* IRQ 1 */
195 /* 52-55 (INTEVT 0x880-0x8E0) unused/reserved */
196 /* INTPRIO4 | INTMSK0 */
197 {56, 4, 28, 0, 25, 3}, /* HCAN2_CHAN0 */
198 {57, 4, 24, 0, 24, 3}, /* HCAN2_CHAN1 */
199 {58, 4, 20, 0, 23, 3}, /* I2S_CHAN0 */
200 {59, 4, 16, 0, 22, 3}, /* I2S_CHAN1 */
201 {60, 4, 12, 0, 21, 3}, /* AC97_CHAN0 */
202 {61, 4, 8, 0, 20, 3}, /* AC97_CHAN1 */
203 {62, 4, 4, 0, 19, 3}, /* I2C_CHAN0 */
204 {63, 4, 0, 0, 18, 3}, /* I2C_CHAN1 */
205 /* INTPRIO8 | INTMSK0 */
206 {52, 8, 16, 0, 11, 3}, /* SCIF0_ERI_IRQ */
207 {53, 8, 16, 0, 10, 3}, /* SCIF0_RXI_IRQ */
208 {54, 8, 16, 0, 9, 3}, /* SCIF0_BRI_IRQ */
209 {55, 8, 16, 0, 8, 3}, /* SCIF0_TXI_IRQ */
210 {64, 8, 28, 0, 17, 3}, /* USBHI_IRQ */
211 {65, 8, 24, 0, 16, 3}, /* LCDC */
212 /* 66, 67 unused */
213 {68, 8, 20, 0, 14, 13}, /* DMABRGI0_IRQ */
214 {69, 8, 20, 0, 13, 13}, /* DMABRGI1_IRQ */
215 {70, 8, 20, 0, 12, 13}, /* DMABRGI2_IRQ */
216 /* 71 unused */
217 {72, 8, 12, 0, 7, 3}, /* SCIF1_ERI_IRQ */
218 {73, 8, 12, 0, 6, 3}, /* SCIF1_RXI_IRQ */
219 {74, 8, 12, 0, 5, 3}, /* SCIF1_BRI_IRQ */
220 {75, 8, 12, 0, 4, 3}, /* SCIF1_TXI_IRQ */
221 {76, 8, 8, 0, 3, 3}, /* SCIF2_ERI_IRQ */
222 {77, 8, 8, 0, 2, 3}, /* SCIF2_RXI_IRQ */
223 {78, 8, 8, 0, 1, 3}, /* SCIF2_BRI_IRQ */
224 {79, 8, 8, 0, 0, 3}, /* SCIF2_TXI_IRQ */
225 /* | INTMSK4 */
226 {80, 8, 4, 4, 23, 3}, /* SIM_ERI */
227 {81, 8, 4, 4, 22, 3}, /* SIM_RXI */
228 {82, 8, 4, 4, 21, 3}, /* SIM_TXI */
229 {83, 8, 4, 4, 20, 3}, /* SIM_TEI */
230 {84, 8, 0, 4, 19, 3}, /* HSPII */
231 /* INTPRIOC | INTMSK4 */
232 /* 85-87 unused/reserved */
233 {88, 12, 20, 4, 18, 3}, /* MMCI0 */
234 {89, 12, 20, 4, 17, 3}, /* MMCI1 */
235 {90, 12, 20, 4, 16, 3}, /* MMCI2 */
236 {91, 12, 20, 4, 15, 3}, /* MMCI3 */
237 {92, 12, 12, 4, 6, 3}, /* MFI (unsure, bug? in my 7760 manual*/
238 /* 93-107 reserved/undocumented */
239 {108,12, 4, 4, 1, 3}, /* ADC */
240 {109,12, 0, 4, 0, 3}, /* CMTI */
241 /* 110-111 reserved/unused */
242#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
243 { TIMER_IRQ, 0, 24, 0, INTC_TMU0_MSK, 2},
244#ifdef CONFIG_SH_RTC
245 { RTC_IRQ, 4, 0, 0, INTC_RTC_MSK, TIMER_PRIORITY },
246#endif
247 { SCIF0_ERI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
248 { SCIF0_RXI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
249 { SCIF0_BRI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
250 { SCIF0_TXI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
251
252 { SCIF1_ERI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
253 { SCIF1_RXI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
254 { SCIF1_BRI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
255 { SCIF1_TXI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
256
257 { PCIC0_IRQ, 0x10, 8, 0, INTC_PCIC0_MSK, PCIC0_PRIORITY },
258 { PCIC1_IRQ, 0x10, 0, 0, INTC_PCIC1_MSK, PCIC1_PRIORITY },
259 { PCIC2_IRQ, 0x14, 24, 0, INTC_PCIC2_MSK, PCIC2_PRIORITY },
260 { PCIC3_IRQ, 0x14, 16, 0, INTC_PCIC3_MSK, PCIC3_PRIORITY },
261 { PCIC4_IRQ, 0x14, 8, 0, INTC_PCIC4_MSK, PCIC4_PRIORITY },
262#endif
263};
264
265void __init init_IRQ_intc2(void)
266{
267 int i;
268
269 for (i = 0; i < ARRAY_SIZE(intc2_init_data); i++) {
270 struct intc2_init *p = intc2_init_data + i;
271 make_intc2_irq(p->irq, p->ipr_offset, p->ipr_shift,
272 p-> msk_offset, p->msk_shift, p->priority);
273 }
274}
275
276/* Adds a termination callback to the interrupt */
277void intc2_add_clear_irq(int irq, int (*fn)(int))
278{
279 if (unlikely(irq < INTC2_FIRST_IRQ))
280 return;
281
282 intc2_data[irq - INTC2_FIRST_IRQ].clear_irq = fn;
283}
284
diff --git a/arch/sh/kernel/cpu/irq_ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index 71f92096132b..fdbd718ae5c6 100644
--- a/arch/sh/kernel/cpu/irq_ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -1,6 +1,5 @@
1/* $Id: irq_ipr.c,v 1.1.2.1 2002/11/17 10:53:43 mrbrown Exp $ 1/*
2 * 2 * arch/sh/kernel/cpu/irq/ipr.c
3 * linux/arch/sh/kernel/irq_ipr.c
4 * 3 *
5 * Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi 4 * Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi
6 * Copyright (C) 2000 Kazumoto Kojima 5 * Copyright (C) 2000 Kazumoto Kojima
@@ -109,7 +108,8 @@ static void end_ipr_irq(unsigned int irq)
109 enable_ipr_irq(irq); 108 enable_ipr_irq(irq);
110} 109}
111 110
112void make_ipr_irq(unsigned int irq, unsigned int addr, int pos, int priority) 111void make_ipr_irq(unsigned int irq, unsigned int addr, int pos,
112 int priority, int maskpos)
113{ 113{
114 disable_irq_nosync(irq); 114 disable_irq_nosync(irq);
115 ipr_data[irq].addr = addr; 115 ipr_data[irq].addr = addr;
@@ -120,126 +120,47 @@ void make_ipr_irq(unsigned int irq, unsigned int addr, int pos, int priority)
120 disable_ipr_irq(irq); 120 disable_ipr_irq(irq);
121} 121}
122 122
123#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
124 defined(CONFIG_CPU_SUBTYPE_SH7707) || \
125 defined(CONFIG_CPU_SUBTYPE_SH7709)
126static unsigned char pint_map[256];
127static unsigned long portcr_mask = 0;
128
129static void enable_pint_irq(unsigned int irq);
130static void disable_pint_irq(unsigned int irq);
131
132/* shutdown is same as "disable" */
133#define shutdown_pint_irq disable_pint_irq
134
135static void mask_and_ack_pint(unsigned int);
136static void end_pint_irq(unsigned int irq);
137
138static unsigned int startup_pint_irq(unsigned int irq)
139{
140 enable_pint_irq(irq);
141 return 0; /* never anything pending */
142}
143
144static struct hw_interrupt_type pint_irq_type = {
145 .typename = "PINT-IRQ",
146 .startup = startup_pint_irq,
147 .shutdown = shutdown_pint_irq,
148 .enable = enable_pint_irq,
149 .disable = disable_pint_irq,
150 .ack = mask_and_ack_pint,
151 .end = end_pint_irq
152};
153
154static void disable_pint_irq(unsigned int irq)
155{
156 unsigned long val, flags;
157
158 local_irq_save(flags);
159 val = ctrl_inw(INTC_INTER);
160 val &= ~(1 << (irq - PINT_IRQ_BASE));
161 ctrl_outw(val, INTC_INTER); /* disable PINTn */
162 portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2);
163 local_irq_restore(flags);
164}
165
166static void enable_pint_irq(unsigned int irq)
167{
168 unsigned long val, flags;
169
170 local_irq_save(flags);
171 val = ctrl_inw(INTC_INTER);
172 val |= 1 << (irq - PINT_IRQ_BASE);
173 ctrl_outw(val, INTC_INTER); /* enable PINTn */
174 portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2;
175 local_irq_restore(flags);
176}
177
178static void mask_and_ack_pint(unsigned int irq)
179{
180 disable_pint_irq(irq);
181}
182
183static void end_pint_irq(unsigned int irq)
184{
185 if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
186 enable_pint_irq(irq);
187}
188
189void make_pint_irq(unsigned int irq)
190{
191 disable_irq_nosync(irq);
192 irq_desc[irq].handler = &pint_irq_type;
193 disable_pint_irq(irq);
194}
195#endif
196
197void __init init_IRQ(void) 123void __init init_IRQ(void)
198{ 124{
199#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \ 125#ifndef CONFIG_CPU_SUBTYPE_SH7780
200 defined(CONFIG_CPU_SUBTYPE_SH7707) || \ 126 make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY, 0);
201 defined(CONFIG_CPU_SUBTYPE_SH7709) 127 make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY, 0);
202 int i;
203#endif
204
205 make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY);
206 make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY);
207#if defined(CONFIG_SH_RTC) 128#if defined(CONFIG_SH_RTC)
208 make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY); 129 make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY, 0);
209#endif 130#endif
210 131
211#ifdef SCI_ERI_IRQ 132#ifdef SCI_ERI_IRQ
212 make_ipr_irq(SCI_ERI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY); 133 make_ipr_irq(SCI_ERI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY, 0);
213 make_ipr_irq(SCI_RXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY); 134 make_ipr_irq(SCI_RXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY, 0);
214 make_ipr_irq(SCI_TXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY); 135 make_ipr_irq(SCI_TXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY, 0);
215#endif 136#endif
216 137
217#ifdef SCIF1_ERI_IRQ 138#ifdef SCIF1_ERI_IRQ
218 make_ipr_irq(SCIF1_ERI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY); 139 make_ipr_irq(SCIF1_ERI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
219 make_ipr_irq(SCIF1_RXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY); 140 make_ipr_irq(SCIF1_RXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
220 make_ipr_irq(SCIF1_BRI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY); 141 make_ipr_irq(SCIF1_BRI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
221 make_ipr_irq(SCIF1_TXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY); 142 make_ipr_irq(SCIF1_TXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
222#endif 143#endif
223 144
224#if defined(CONFIG_CPU_SUBTYPE_SH7300) 145#if defined(CONFIG_CPU_SUBTYPE_SH7300)
225 make_ipr_irq(SCIF0_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY); 146 make_ipr_irq(SCIF0_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY, 0);
226 make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); 147 make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY, 0);
227 make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); 148 make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY, 0);
228 make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); 149 make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY, 0);
229#endif 150#endif
230 151
231#ifdef SCIF_ERI_IRQ 152#ifdef SCIF_ERI_IRQ
232 make_ipr_irq(SCIF_ERI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY); 153 make_ipr_irq(SCIF_ERI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
233 make_ipr_irq(SCIF_RXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY); 154 make_ipr_irq(SCIF_RXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
234 make_ipr_irq(SCIF_BRI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY); 155 make_ipr_irq(SCIF_BRI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
235 make_ipr_irq(SCIF_TXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY); 156 make_ipr_irq(SCIF_TXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
236#endif 157#endif
237 158
238#ifdef IRDA_ERI_IRQ 159#ifdef IRDA_ERI_IRQ
239 make_ipr_irq(IRDA_ERI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY); 160 make_ipr_irq(IRDA_ERI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
240 make_ipr_irq(IRDA_RXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY); 161 make_ipr_irq(IRDA_RXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
241 make_ipr_irq(IRDA_BRI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY); 162 make_ipr_irq(IRDA_BRI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
242 make_ipr_irq(IRDA_TXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY); 163 make_ipr_irq(IRDA_TXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
243#endif 164#endif
244 165
245#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ 166#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
@@ -254,86 +175,32 @@ void __init init_IRQ(void)
254 * You should set corresponding bits of PFC to "00" 175 * You should set corresponding bits of PFC to "00"
255 * to enable these interrupts. 176 * to enable these interrupts.
256 */ 177 */
257 make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, IRQ0_PRIORITY); 178 make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, IRQ0_PRIORITY, 0);
258 make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY); 179 make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY, 0);
259 make_ipr_irq(IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY); 180 make_ipr_irq(IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY, 0);
260 make_ipr_irq(IRQ3_IRQ, IRQ3_IPR_ADDR, IRQ3_IPR_POS, IRQ3_PRIORITY); 181 make_ipr_irq(IRQ3_IRQ, IRQ3_IPR_ADDR, IRQ3_IPR_POS, IRQ3_PRIORITY, 0);
261 make_ipr_irq(IRQ4_IRQ, IRQ4_IPR_ADDR, IRQ4_IPR_POS, IRQ4_PRIORITY); 182 make_ipr_irq(IRQ4_IRQ, IRQ4_IPR_ADDR, IRQ4_IPR_POS, IRQ4_PRIORITY, 0);
262 make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR, IRQ5_IPR_POS, IRQ5_PRIORITY); 183 make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR, IRQ5_IPR_POS, IRQ5_PRIORITY, 0);
263#if !defined(CONFIG_CPU_SUBTYPE_SH7300) 184#endif
264 make_ipr_irq(PINT0_IRQ, PINT0_IPR_ADDR, PINT0_IPR_POS, PINT0_PRIORITY); 185#endif
265 make_ipr_irq(PINT8_IRQ, PINT8_IPR_ADDR, PINT8_IPR_POS, PINT8_PRIORITY);
266 enable_ipr_irq(PINT0_IRQ);
267 enable_ipr_irq(PINT8_IRQ);
268 186
269 for(i = 0; i < 16; i++) 187#ifdef CONFIG_CPU_HAS_PINT_IRQ
270 make_pint_irq(PINT_IRQ_BASE + i); 188 init_IRQ_pint();
271 for(i = 0; i < 256; i++) 189#endif
272 {
273 if(i & 1) pint_map[i] = 0;
274 else if(i & 2) pint_map[i] = 1;
275 else if(i & 4) pint_map[i] = 2;
276 else if(i & 8) pint_map[i] = 3;
277 else if(i & 0x10) pint_map[i] = 4;
278 else if(i & 0x20) pint_map[i] = 5;
279 else if(i & 0x40) pint_map[i] = 6;
280 else if(i & 0x80) pint_map[i] = 7;
281 }
282#endif /* !CONFIG_CPU_SUBTYPE_SH7300 */
283#endif /* CONFIG_CPU_SUBTYPE_SH7707 || CONFIG_CPU_SUBTYPE_SH7709 || CONFIG_CPU_SUBTYPE_SH7300*/
284 190
285#ifdef CONFIG_CPU_SUBTYPE_ST40 191#ifdef CONFIG_CPU_HAS_INTC2_IRQ
286 init_IRQ_intc2(); 192 init_IRQ_intc2();
287#endif 193#endif
288
289 /* Perform the machine specific initialisation */ 194 /* Perform the machine specific initialisation */
290 if (sh_mv.mv_init_irq != NULL) { 195 if (sh_mv.mv_init_irq != NULL)
291 sh_mv.mv_init_irq(); 196 sh_mv.mv_init_irq();
292 }
293} 197}
294#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ 198
295 defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) 199#if !defined(CONFIG_CPU_HAS_PINT_IRQ)
296int ipr_irq_demux(int irq) 200int ipr_irq_demux(int irq)
297{ 201{
298#if !defined(CONFIG_CPU_SUBTYPE_SH7300)
299 unsigned long creg, dreg, d, sav;
300
301 if(irq == PINT0_IRQ)
302 {
303#if defined(CONFIG_CPU_SUBTYPE_SH7707)
304 creg = PORT_PACR;
305 dreg = PORT_PADR;
306#else
307 creg = PORT_PCCR;
308 dreg = PORT_PCDR;
309#endif
310 sav = ctrl_inw(creg);
311 ctrl_outw(sav | portcr_mask, creg);
312 d = (~ctrl_inb(dreg) ^ ctrl_inw(INTC_ICR2)) & ctrl_inw(INTC_INTER) & 0xff;
313 ctrl_outw(sav, creg);
314 if(d == 0) return irq;
315 return PINT_IRQ_BASE + pint_map[d];
316 }
317 else if(irq == PINT8_IRQ)
318 {
319#if defined(CONFIG_CPU_SUBTYPE_SH7707)
320 creg = PORT_PBCR;
321 dreg = PORT_PBDR;
322#else
323 creg = PORT_PFCR;
324 dreg = PORT_PFDR;
325#endif
326 sav = ctrl_inw(creg);
327 ctrl_outw(sav | (portcr_mask >> 16), creg);
328 d = (~ctrl_inb(dreg) ^ (ctrl_inw(INTC_ICR2) >> 8)) & (ctrl_inw(INTC_INTER) >> 8) & 0xff;
329 ctrl_outw(sav, creg);
330 if(d == 0) return irq;
331 return PINT_IRQ_BASE + 8 + pint_map[d];
332 }
333#endif
334 return irq; 202 return irq;
335} 203}
336#endif 204#endif
337 205
338EXPORT_SYMBOL(make_ipr_irq); 206EXPORT_SYMBOL(make_ipr_irq);
339
diff --git a/arch/sh/kernel/cpu/irq/pint.c b/arch/sh/kernel/cpu/irq/pint.c
new file mode 100644
index 000000000000..95d6024fe1ae
--- /dev/null
+++ b/arch/sh/kernel/cpu/irq/pint.c
@@ -0,0 +1,169 @@
1/*
2 * arch/sh/kernel/cpu/irq/pint.c - Interrupt handling for PINT-based IRQs.
3 *
4 * Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi
5 * Copyright (C) 2000 Kazumoto Kojima
6 * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12
13#include <linux/config.h>
14#include <linux/init.h>
15#include <linux/irq.h>
16#include <linux/module.h>
17
18#include <asm/system.h>
19#include <asm/io.h>
20#include <asm/machvec.h>
21
22static unsigned char pint_map[256];
23static unsigned long portcr_mask;
24
25static void enable_pint_irq(unsigned int irq);
26static void disable_pint_irq(unsigned int irq);
27
28/* shutdown is same as "disable" */
29#define shutdown_pint_irq disable_pint_irq
30
31static void mask_and_ack_pint(unsigned int);
32static void end_pint_irq(unsigned int irq);
33
34static unsigned int startup_pint_irq(unsigned int irq)
35{
36 enable_pint_irq(irq);
37 return 0; /* never anything pending */
38}
39
40static struct hw_interrupt_type pint_irq_type = {
41 .typename = "PINT-IRQ",
42 .startup = startup_pint_irq,
43 .shutdown = shutdown_pint_irq,
44 .enable = enable_pint_irq,
45 .disable = disable_pint_irq,
46 .ack = mask_and_ack_pint,
47 .end = end_pint_irq
48};
49
50static void disable_pint_irq(unsigned int irq)
51{
52 unsigned long val, flags;
53
54 local_irq_save(flags);
55 val = ctrl_inw(INTC_INTER);
56 val &= ~(1 << (irq - PINT_IRQ_BASE));
57 ctrl_outw(val, INTC_INTER); /* disable PINTn */
58 portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2);
59 local_irq_restore(flags);
60}
61
62static void enable_pint_irq(unsigned int irq)
63{
64 unsigned long val, flags;
65
66 local_irq_save(flags);
67 val = ctrl_inw(INTC_INTER);
68 val |= 1 << (irq - PINT_IRQ_BASE);
69 ctrl_outw(val, INTC_INTER); /* enable PINTn */
70 portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2;
71 local_irq_restore(flags);
72}
73
74static void mask_and_ack_pint(unsigned int irq)
75{
76 disable_pint_irq(irq);
77}
78
79static void end_pint_irq(unsigned int irq)
80{
81 if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
82 enable_pint_irq(irq);
83}
84
85void make_pint_irq(unsigned int irq)
86{
87 disable_irq_nosync(irq);
88 irq_desc[irq].handler = &pint_irq_type;
89 disable_pint_irq(irq);
90}
91
92void __init init_IRQ_pint(void)
93{
94 int i;
95
96 make_ipr_irq(PINT0_IRQ, PINT0_IPR_ADDR, PINT0_IPR_POS, PINT0_PRIORITY);
97 make_ipr_irq(PINT8_IRQ, PINT8_IPR_ADDR, PINT8_IPR_POS, PINT8_PRIORITY);
98
99 enable_irq(PINT0_IRQ);
100 enable_irq(PINT8_IRQ);
101
102 for(i = 0; i < 16; i++)
103 make_pint_irq(PINT_IRQ_BASE + i);
104
105 for(i = 0; i < 256; i++) {
106 if (i & 1)
107 pint_map[i] = 0;
108 else if (i & 2)
109 pint_map[i] = 1;
110 else if (i & 4)
111 pint_map[i] = 2;
112 else if (i & 8)
113 pint_map[i] = 3;
114 else if (i & 0x10)
115 pint_map[i] = 4;
116 else if (i & 0x20)
117 pint_map[i] = 5;
118 else if (i & 0x40)
119 pint_map[i] = 6;
120 else if (i & 0x80)
121 pint_map[i] = 7;
122 }
123}
124
125int ipr_irq_demux(int irq)
126{
127 unsigned long creg, dreg, d, sav;
128
129 if (irq == PINT0_IRQ) {
130#if defined(CONFIG_CPU_SUBTYPE_SH7707)
131 creg = PORT_PACR;
132 dreg = PORT_PADR;
133#else
134 creg = PORT_PCCR;
135 dreg = PORT_PCDR;
136#endif
137 sav = ctrl_inw(creg);
138 ctrl_outw(sav | portcr_mask, creg);
139 d = (~ctrl_inb(dreg) ^ ctrl_inw(INTC_ICR2)) &
140 ctrl_inw(INTC_INTER) & 0xff;
141 ctrl_outw(sav, creg);
142
143 if (d == 0)
144 return irq;
145
146 return PINT_IRQ_BASE + pint_map[d];
147 } else if (irq == PINT8_IRQ) {
148#if defined(CONFIG_CPU_SUBTYPE_SH7707)
149 creg = PORT_PBCR;
150 dreg = PORT_PBDR;
151#else
152 creg = PORT_PFCR;
153 dreg = PORT_PFDR;
154#endif
155 sav = ctrl_inw(creg);
156 ctrl_outw(sav | (portcr_mask >> 16), creg);
157 d = (~ctrl_inb(dreg) ^ (ctrl_inw(INTC_ICR2) >> 8)) &
158 (ctrl_inw(INTC_INTER) >> 8) & 0xff;
159 ctrl_outw(sav, creg);
160
161 if (d == 0)
162 return irq;
163
164 return PINT_IRQ_BASE + 8 + pint_map[d];
165 }
166
167 return irq;
168}
169
diff --git a/arch/sh/kernel/cpu/sh4/irq_intc2.c b/arch/sh/kernel/cpu/sh4/irq_intc2.c
deleted file mode 100644
index f6b16ba01932..000000000000
--- a/arch/sh/kernel/cpu/sh4/irq_intc2.c
+++ /dev/null
@@ -1,222 +0,0 @@
1/*
2 * linux/arch/sh/kernel/irq_intc2.c
3 *
4 * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
5 *
6 * May be copied or modified under the terms of the GNU General Public
7 * License. See linux/COPYING for more information.
8 *
9 * Interrupt handling for INTC2-based IRQ.
10 *
11 * These are the "new Hitachi style" interrupts, as present on the
12 * Hitachi 7751 and the STM ST40 STB1.
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/irq.h>
18
19#include <asm/system.h>
20#include <asm/io.h>
21#include <asm/machvec.h>
22
23
24struct intc2_data {
25 unsigned char msk_offset;
26 unsigned char msk_shift;
27#ifdef CONFIG_CPU_SUBTYPE_ST40
28 int (*clear_irq) (int);
29#endif
30};
31
32
33static struct intc2_data intc2_data[NR_INTC2_IRQS];
34
35static void enable_intc2_irq(unsigned int irq);
36static void disable_intc2_irq(unsigned int irq);
37
38/* shutdown is same as "disable" */
39#define shutdown_intc2_irq disable_intc2_irq
40
41static void mask_and_ack_intc2(unsigned int);
42static void end_intc2_irq(unsigned int irq);
43
44static unsigned int startup_intc2_irq(unsigned int irq)
45{
46 enable_intc2_irq(irq);
47 return 0; /* never anything pending */
48}
49
50static struct hw_interrupt_type intc2_irq_type = {
51 .typename = "INTC2-IRQ",
52 .startup = startup_intc2_irq,
53 .shutdown = shutdown_intc2_irq,
54 .enable = enable_intc2_irq,
55 .disable = disable_intc2_irq,
56 .ack = mask_and_ack_intc2,
57 .end = end_intc2_irq
58};
59
60static void disable_intc2_irq(unsigned int irq)
61{
62 int irq_offset = irq - INTC2_FIRST_IRQ;
63 int msk_shift, msk_offset;
64
65 // Sanity check
66 if((irq_offset<0) || (irq_offset>=NR_INTC2_IRQS))
67 return;
68
69 msk_shift = intc2_data[irq_offset].msk_shift;
70 msk_offset = intc2_data[irq_offset].msk_offset;
71
72 ctrl_outl(1<<msk_shift,
73 INTC2_BASE+INTC2_INTMSK_OFFSET+msk_offset);
74}
75
76static void enable_intc2_irq(unsigned int irq)
77{
78 int irq_offset = irq - INTC2_FIRST_IRQ;
79 int msk_shift, msk_offset;
80
81 /* Sanity check */
82 if((irq_offset<0) || (irq_offset>=NR_INTC2_IRQS))
83 return;
84
85 msk_shift = intc2_data[irq_offset].msk_shift;
86 msk_offset = intc2_data[irq_offset].msk_offset;
87
88 ctrl_outl(1<<msk_shift,
89 INTC2_BASE+INTC2_INTMSKCLR_OFFSET+msk_offset);
90}
91
92static void mask_and_ack_intc2(unsigned int irq)
93{
94 disable_intc2_irq(irq);
95}
96
97static void end_intc2_irq(unsigned int irq)
98{
99 if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
100 enable_intc2_irq(irq);
101
102#ifdef CONFIG_CPU_SUBTYPE_ST40
103 if (intc2_data[irq - INTC2_FIRST_IRQ].clear_irq)
104 intc2_data[irq - INTC2_FIRST_IRQ].clear_irq (irq);
105#endif
106}
107
108/*
109 * Setup an INTC2 style interrupt.
110 * NOTE: Unlike IPR interrupts, parameters are not shifted by this code,
111 * allowing the use of the numbers straight out of the datasheet.
112 * For example:
113 * PIO1 which is INTPRI00[19,16] and INTMSK00[13]
114 * would be: ^ ^ ^ ^
115 * | | | |
116 * make_intc2_irq(84, 0, 16, 0, 13);
117 */
118void make_intc2_irq(unsigned int irq,
119 unsigned int ipr_offset, unsigned int ipr_shift,
120 unsigned int msk_offset, unsigned int msk_shift,
121 unsigned int priority)
122{
123 int irq_offset = irq - INTC2_FIRST_IRQ;
124 unsigned int flags;
125 unsigned long ipr;
126
127 if((irq_offset<0) || (irq_offset>=NR_INTC2_IRQS))
128 return;
129
130 disable_irq_nosync(irq);
131
132 /* Fill the data we need */
133 intc2_data[irq_offset].msk_offset = msk_offset;
134 intc2_data[irq_offset].msk_shift = msk_shift;
135#ifdef CONFIG_CPU_SUBTYPE_ST40
136 intc2_data[irq_offset].clear_irq = NULL;
137#endif
138
139 /* Set the priority level */
140 local_irq_save(flags);
141
142 ipr=ctrl_inl(INTC2_BASE+INTC2_INTPRI_OFFSET+ipr_offset);
143 ipr&=~(0xf<<ipr_shift);
144 ipr|=(priority)<<ipr_shift;
145 ctrl_outl(ipr, INTC2_BASE+INTC2_INTPRI_OFFSET+ipr_offset);
146
147 local_irq_restore(flags);
148
149 irq_desc[irq].handler=&intc2_irq_type;
150
151 disable_intc2_irq(irq);
152}
153
154#ifdef CONFIG_CPU_SUBTYPE_ST40
155
156struct intc2_init {
157 unsigned short irq;
158 unsigned char ipr_offset, ipr_shift;
159 unsigned char msk_offset, msk_shift;
160};
161
162static struct intc2_init intc2_init_data[] __initdata = {
163 {64, 0, 0, 0, 0}, /* PCI serr */
164 {65, 0, 4, 0, 1}, /* PCI err */
165 {66, 0, 4, 0, 2}, /* PCI ad */
166 {67, 0, 4, 0, 3}, /* PCI pwd down */
167 {72, 0, 8, 0, 5}, /* DMAC INT0 */
168 {73, 0, 8, 0, 6}, /* DMAC INT1 */
169 {74, 0, 8, 0, 7}, /* DMAC INT2 */
170 {75, 0, 8, 0, 8}, /* DMAC INT3 */
171 {76, 0, 8, 0, 9}, /* DMAC INT4 */
172 {78, 0, 8, 0, 11}, /* DMAC ERR */
173 {80, 0, 12, 0, 12}, /* PIO0 */
174 {84, 0, 16, 0, 13}, /* PIO1 */
175 {88, 0, 20, 0, 14}, /* PIO2 */
176 {112, 4, 0, 4, 0}, /* Mailbox */
177#ifdef CONFIG_CPU_SUBTYPE_ST40GX1
178 {116, 4, 4, 4, 4}, /* SSC0 */
179 {120, 4, 8, 4, 8}, /* IR Blaster */
180 {124, 4, 12, 4, 12}, /* USB host */
181 {128, 4, 16, 4, 16}, /* Video processor BLITTER */
182 {132, 4, 20, 4, 20}, /* UART0 */
183 {134, 4, 20, 4, 22}, /* UART2 */
184 {136, 4, 24, 4, 24}, /* IO_PIO0 */
185 {140, 4, 28, 4, 28}, /* EMPI */
186 {144, 8, 0, 8, 0}, /* MAFE */
187 {148, 8, 4, 8, 4}, /* PWM */
188 {152, 8, 8, 8, 8}, /* SSC1 */
189 {156, 8, 12, 8, 12}, /* IO_PIO1 */
190 {160, 8, 16, 8, 16}, /* USB target */
191 {164, 8, 20, 8, 20}, /* UART1 */
192 {168, 8, 24, 8, 24}, /* Teletext */
193 {172, 8, 28, 8, 28}, /* VideoSync VTG */
194 {173, 8, 28, 8, 29}, /* VideoSync DVP0 */
195 {174, 8, 28, 8, 30}, /* VideoSync DVP1 */
196#endif
197};
198
199void __init init_IRQ_intc2(void)
200{
201 struct intc2_init *p;
202
203 printk(KERN_ALERT "init_IRQ_intc2\n");
204
205 for (p = intc2_init_data;
206 p<intc2_init_data+ARRAY_SIZE(intc2_init_data);
207 p++) {
208 make_intc2_irq(p->irq, p->ipr_offset, p->ipr_shift,
209 p-> msk_offset, p->msk_shift, 13);
210 }
211}
212
213/* Adds a termination callback to the interrupt */
214void intc2_add_clear_irq(int irq, int (*fn)(int))
215{
216 if (irq < INTC2_FIRST_IRQ)
217 return;
218
219 intc2_data[irq - INTC2_FIRST_IRQ].clear_irq = fn;
220}
221
222#endif /* CONFIG_CPU_SUBTYPE_ST40 */
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 54c171225b78..6883c00728cb 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -8,38 +8,13 @@
8 * SuperH version: Copyright (C) 1999 Niibe Yutaka 8 * SuperH version: Copyright (C) 1999 Niibe Yutaka
9 */ 9 */
10 10
11/* 11#include <linux/irq.h>
12 * IRQs are in fact implemented a bit like signal handlers for the kernel.
13 * Naturally it's not a 1:1 relation, but there are similarities.
14 */
15
16#include <linux/config.h>
17#include <linux/module.h>
18#include <linux/ptrace.h>
19#include <linux/errno.h>
20#include <linux/kernel_stat.h>
21#include <linux/signal.h>
22#include <linux/sched.h>
23#include <linux/ioport.h>
24#include <linux/interrupt.h> 12#include <linux/interrupt.h>
25#include <linux/timex.h> 13#include <linux/kernel_stat.h>
26#include <linux/mm.h>
27#include <linux/slab.h>
28#include <linux/random.h>
29#include <linux/smp.h>
30#include <linux/smp_lock.h>
31#include <linux/init.h>
32#include <linux/seq_file.h> 14#include <linux/seq_file.h>
33#include <linux/kallsyms.h>
34#include <linux/bitops.h>
35
36#include <asm/system.h>
37#include <asm/io.h>
38#include <asm/pgalloc.h>
39#include <asm/delay.h>
40#include <asm/irq.h> 15#include <asm/irq.h>
41#include <linux/irq.h> 16#include <asm/processor.h>
42 17#include <asm/cpu/mmu_context.h>
43 18
44/* 19/*
45 * 'what should we do if we get a hw irq event on an illegal vector'. 20 * 'what should we do if we get a hw irq event on an illegal vector'.
@@ -66,7 +41,7 @@ int show_interrupts(struct seq_file *p, void *v)
66 seq_putc(p, '\n'); 41 seq_putc(p, '\n');
67 } 42 }
68 43
69 if (i < ACTUAL_NR_IRQS) { 44 if (i < NR_IRQS) {
70 spin_lock_irqsave(&irq_desc[i].lock, flags); 45 spin_lock_irqsave(&irq_desc[i].lock, flags);
71 action = irq_desc[i].action; 46 action = irq_desc[i].action;
72 if (!action) 47 if (!action)
@@ -86,19 +61,32 @@ unlock:
86} 61}
87#endif 62#endif
88 63
64
89asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, 65asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
90 unsigned long r6, unsigned long r7, 66 unsigned long r6, unsigned long r7,
91 struct pt_regs regs) 67 struct pt_regs regs)
92{ 68{
93 int irq; 69 int irq = r4;
94 70
95 irq_enter(); 71 irq_enter();
96 asm volatile("stc r2_bank, %0\n\t" 72
97 "shlr2 %0\n\t" 73#ifdef CONFIG_CPU_HAS_INTEVT
98 "shlr2 %0\n\t" 74 __asm__ __volatile__ (
99 "shlr %0\n\t" 75#ifdef CONFIG_CPU_HAS_SR_RB
100 "add #-16, %0\n\t" 76 "stc r2_bank, %0\n\t"
101 :"=z" (irq)); 77#else
78 "mov.l @%1, %0\n\t"
79#endif
80 "shlr2 %0\n\t"
81 "shlr2 %0\n\t"
82 "shlr %0\n\t"
83 "add #-16, %0\n\t"
84 : "=z" (irq), "=r" (r4)
85 : "1" (INTEVT)
86 : "memory"
87 );
88#endif
89
102 irq = irq_demux(irq); 90 irq = irq_demux(irq);
103 __do_IRQ(irq, &regs); 91 __do_IRQ(irq, &regs);
104 irq_exit(); 92 irq_exit();
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-14 21:16:50 -0500