aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mips/dec
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/dec')
-rw-r--r--arch/mips/dec/ecc-berr.c6
-rw-r--r--arch/mips/dec/ioasic-irq.c72
-rw-r--r--arch/mips/dec/kn02-irq.c53
3 files changed, 20 insertions, 111 deletions
diff --git a/arch/mips/dec/ecc-berr.c b/arch/mips/dec/ecc-berr.c
index 3e374d05978f..c8430c07355e 100644
--- a/arch/mips/dec/ecc-berr.c
+++ b/arch/mips/dec/ecc-berr.c
@@ -18,7 +18,6 @@
18#include <linux/interrupt.h> 18#include <linux/interrupt.h>
19#include <linux/kernel.h> 19#include <linux/kernel.h>
20#include <linux/sched.h> 20#include <linux/sched.h>
21#include <linux/spinlock.h>
22#include <linux/types.h> 21#include <linux/types.h>
23 22
24#include <asm/addrspace.h> 23#include <asm/addrspace.h>
@@ -231,13 +230,10 @@ irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id)
231static inline void dec_kn02_be_init(void) 230static inline void dec_kn02_be_init(void)
232{ 231{
233 volatile u32 *csr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR); 232 volatile u32 *csr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR);
234 unsigned long flags;
235 233
236 kn0x_erraddr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_ERRADDR); 234 kn0x_erraddr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_ERRADDR);
237 kn0x_chksyn = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CHKSYN); 235 kn0x_chksyn = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CHKSYN);
238 236
239 spin_lock_irqsave(&kn02_lock, flags);
240
241 /* Preset write-only bits of the Control Register cache. */ 237 /* Preset write-only bits of the Control Register cache. */
242 cached_kn02_csr = *csr | KN02_CSR_LEDS; 238 cached_kn02_csr = *csr | KN02_CSR_LEDS;
243 239
@@ -247,8 +243,6 @@ static inline void dec_kn02_be_init(void)
247 cached_kn02_csr |= KN02_CSR_CORRECT; 243 cached_kn02_csr |= KN02_CSR_CORRECT;
248 *csr = cached_kn02_csr; 244 *csr = cached_kn02_csr;
249 iob(); 245 iob();
250
251 spin_unlock_irqrestore(&kn02_lock, flags);
252} 246}
253 247
254static inline void dec_kn03_be_init(void) 248static inline void dec_kn03_be_init(void)
diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c
index 41cd2a96148b..d0af08bdbb4e 100644
--- a/arch/mips/dec/ioasic-irq.c
+++ b/arch/mips/dec/ioasic-irq.c
@@ -13,7 +13,6 @@
13 13
14#include <linux/init.h> 14#include <linux/init.h>
15#include <linux/irq.h> 15#include <linux/irq.h>
16#include <linux/spinlock.h>
17#include <linux/types.h> 16#include <linux/types.h>
18 17
19#include <asm/dec/ioasic.h> 18#include <asm/dec/ioasic.h>
@@ -21,8 +20,6 @@
21#include <asm/dec/ioasic_ints.h> 20#include <asm/dec/ioasic_ints.h>
22 21
23 22
24static DEFINE_SPINLOCK(ioasic_lock);
25
26static int ioasic_irq_base; 23static int ioasic_irq_base;
27 24
28 25
@@ -52,65 +49,31 @@ static inline void clear_ioasic_irq(unsigned int irq)
52 ioasic_write(IO_REG_SIR, sir); 49 ioasic_write(IO_REG_SIR, sir);
53} 50}
54 51
55static inline void enable_ioasic_irq(unsigned int irq)
56{
57 unsigned long flags;
58
59 spin_lock_irqsave(&ioasic_lock, flags);
60 unmask_ioasic_irq(irq);
61 spin_unlock_irqrestore(&ioasic_lock, flags);
62}
63
64static inline void disable_ioasic_irq(unsigned int irq)
65{
66 unsigned long flags;
67
68 spin_lock_irqsave(&ioasic_lock, flags);
69 mask_ioasic_irq(irq);
70 spin_unlock_irqrestore(&ioasic_lock, flags);
71}
72
73
74static inline unsigned int startup_ioasic_irq(unsigned int irq)
75{
76 enable_ioasic_irq(irq);
77 return 0;
78}
79
80#define shutdown_ioasic_irq disable_ioasic_irq
81
82static inline void ack_ioasic_irq(unsigned int irq) 52static inline void ack_ioasic_irq(unsigned int irq)
83{ 53{
84 spin_lock(&ioasic_lock);
85 mask_ioasic_irq(irq); 54 mask_ioasic_irq(irq);
86 spin_unlock(&ioasic_lock);
87 fast_iob(); 55 fast_iob();
88} 56}
89 57
90static inline void end_ioasic_irq(unsigned int irq) 58static inline void end_ioasic_irq(unsigned int irq)
91{ 59{
92 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) 60 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
93 enable_ioasic_irq(irq); 61 unmask_ioasic_irq(irq);
94} 62}
95 63
96static struct irq_chip ioasic_irq_type = { 64static struct irq_chip ioasic_irq_type = {
97 .typename = "IO-ASIC", 65 .typename = "IO-ASIC",
98 .startup = startup_ioasic_irq,
99 .shutdown = shutdown_ioasic_irq,
100 .enable = enable_ioasic_irq,
101 .disable = disable_ioasic_irq,
102 .ack = ack_ioasic_irq, 66 .ack = ack_ioasic_irq,
67 .mask = mask_ioasic_irq,
68 .mask_ack = ack_ioasic_irq,
69 .unmask = unmask_ioasic_irq,
103 .end = end_ioasic_irq, 70 .end = end_ioasic_irq,
104}; 71};
105 72
106 73
107#define startup_ioasic_dma_irq startup_ioasic_irq 74#define unmask_ioasic_dma_irq unmask_ioasic_irq
108
109#define shutdown_ioasic_dma_irq shutdown_ioasic_irq
110
111#define enable_ioasic_dma_irq enable_ioasic_irq
112 75
113#define disable_ioasic_dma_irq disable_ioasic_irq 76#define mask_ioasic_dma_irq mask_ioasic_irq
114 77
115#define ack_ioasic_dma_irq ack_ioasic_irq 78#define ack_ioasic_dma_irq ack_ioasic_irq
116 79
@@ -123,11 +86,10 @@ static inline void end_ioasic_dma_irq(unsigned int irq)
123 86
124static struct irq_chip ioasic_dma_irq_type = { 87static struct irq_chip ioasic_dma_irq_type = {
125 .typename = "IO-ASIC-DMA", 88 .typename = "IO-ASIC-DMA",
126 .startup = startup_ioasic_dma_irq,
127 .shutdown = shutdown_ioasic_dma_irq,
128 .enable = enable_ioasic_dma_irq,
129 .disable = disable_ioasic_dma_irq,
130 .ack = ack_ioasic_dma_irq, 89 .ack = ack_ioasic_dma_irq,
90 .mask = mask_ioasic_dma_irq,
91 .mask_ack = ack_ioasic_dma_irq,
92 .unmask = unmask_ioasic_dma_irq,
131 .end = end_ioasic_dma_irq, 93 .end = end_ioasic_dma_irq,
132}; 94};
133 95
@@ -140,18 +102,10 @@ void __init init_ioasic_irqs(int base)
140 ioasic_write(IO_REG_SIMR, 0); 102 ioasic_write(IO_REG_SIMR, 0);
141 fast_iob(); 103 fast_iob();
142 104
143 for (i = base; i < base + IO_INR_DMA; i++) { 105 for (i = base; i < base + IO_INR_DMA; i++)
144 irq_desc[i].status = IRQ_DISABLED; 106 set_irq_chip(i, &ioasic_irq_type);
145 irq_desc[i].action = 0; 107 for (; i < base + IO_IRQ_LINES; i++)
146 irq_desc[i].depth = 1; 108 set_irq_chip(i, &ioasic_dma_irq_type);
147 irq_desc[i].chip = &ioasic_irq_type;
148 }
149 for (; i < base + IO_IRQ_LINES; i++) {
150 irq_desc[i].status = IRQ_DISABLED;
151 irq_desc[i].action = 0;
152 irq_desc[i].depth = 1;
153 irq_desc[i].chip = &ioasic_dma_irq_type;
154 }
155 109
156 ioasic_irq_base = base; 110 ioasic_irq_base = base;
157} 111}
diff --git a/arch/mips/dec/kn02-irq.c b/arch/mips/dec/kn02-irq.c
index 04a367a60a57..c761d97787ec 100644
--- a/arch/mips/dec/kn02-irq.c
+++ b/arch/mips/dec/kn02-irq.c
@@ -14,7 +14,6 @@
14 14
15#include <linux/init.h> 15#include <linux/init.h>
16#include <linux/irq.h> 16#include <linux/irq.h>
17#include <linux/spinlock.h>
18#include <linux/types.h> 17#include <linux/types.h>
19 18
20#include <asm/dec/kn02.h> 19#include <asm/dec/kn02.h>
@@ -29,7 +28,6 @@
29 * There is no default value -- it has to be initialized. 28 * There is no default value -- it has to be initialized.
30 */ 29 */
31u32 cached_kn02_csr; 30u32 cached_kn02_csr;
32DEFINE_SPINLOCK(kn02_lock);
33 31
34 32
35static int kn02_irq_base; 33static int kn02_irq_base;
@@ -53,54 +51,24 @@ static inline void mask_kn02_irq(unsigned int irq)
53 *csr = cached_kn02_csr; 51 *csr = cached_kn02_csr;
54} 52}
55 53
56static inline void enable_kn02_irq(unsigned int irq)
57{
58 unsigned long flags;
59
60 spin_lock_irqsave(&kn02_lock, flags);
61 unmask_kn02_irq(irq);
62 spin_unlock_irqrestore(&kn02_lock, flags);
63}
64
65static inline void disable_kn02_irq(unsigned int irq)
66{
67 unsigned long flags;
68
69 spin_lock_irqsave(&kn02_lock, flags);
70 mask_kn02_irq(irq);
71 spin_unlock_irqrestore(&kn02_lock, flags);
72}
73
74
75static unsigned int startup_kn02_irq(unsigned int irq)
76{
77 enable_kn02_irq(irq);
78 return 0;
79}
80
81#define shutdown_kn02_irq disable_kn02_irq
82
83static void ack_kn02_irq(unsigned int irq) 54static void ack_kn02_irq(unsigned int irq)
84{ 55{
85 spin_lock(&kn02_lock);
86 mask_kn02_irq(irq); 56 mask_kn02_irq(irq);
87 spin_unlock(&kn02_lock);
88 iob(); 57 iob();
89} 58}
90 59
91static void end_kn02_irq(unsigned int irq) 60static void end_kn02_irq(unsigned int irq)
92{ 61{
93 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) 62 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
94 enable_kn02_irq(irq); 63 unmask_kn02_irq(irq);
95} 64}
96 65
97static struct irq_chip kn02_irq_type = { 66static struct irq_chip kn02_irq_type = {
98 .typename = "KN02-CSR", 67 .typename = "KN02-CSR",
99 .startup = startup_kn02_irq,
100 .shutdown = shutdown_kn02_irq,
101 .enable = enable_kn02_irq,
102 .disable = disable_kn02_irq,
103 .ack = ack_kn02_irq, 68 .ack = ack_kn02_irq,
69 .mask = mask_kn02_irq,
70 .mask_ack = ack_kn02_irq,
71 .unmask = unmask_kn02_irq,
104 .end = end_kn02_irq, 72 .end = end_kn02_irq,
105}; 73};
106 74
@@ -109,22 +77,15 @@ void __init init_kn02_irqs(int base)
109{ 77{
110 volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE + 78 volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE +
111 KN02_CSR); 79 KN02_CSR);
112 unsigned long flags;
113 int i; 80 int i;
114 81
115 /* Mask interrupts. */ 82 /* Mask interrupts. */
116 spin_lock_irqsave(&kn02_lock, flags);
117 cached_kn02_csr &= ~KN02_CSR_IOINTEN; 83 cached_kn02_csr &= ~KN02_CSR_IOINTEN;
118 *csr = cached_kn02_csr; 84 *csr = cached_kn02_csr;
119 iob(); 85 iob();
120 spin_unlock_irqrestore(&kn02_lock, flags); 86
121 87 for (i = base; i < base + KN02_IRQ_LINES; i++)
122 for (i = base; i < base + KN02_IRQ_LINES; i++) { 88 set_irq_chip(i, &kn02_irq_type);
123 irq_desc[i].status = IRQ_DISABLED;
124 irq_desc[i].action = 0;
125 irq_desc[i].depth = 1;
126 irq_desc[i].chip = &kn02_irq_type;
127 }
128 89
129 kn02_irq_base = base; 90 kn02_irq_base = base;
130} 91}