]> CyberLeo.Net >> Repos - FreeBSD/releng/10.0.git/blob - sys/arm/xscale/i80321/i80321_intr.h
- Copy stable/10 (r259064) to releng/10.0 as part of the
[FreeBSD/releng/10.0.git] / sys / arm / xscale / i80321 / i80321_intr.h
1 /*      $NetBSD: i80321_intr.h,v 1.5 2004/01/12 10:25:06 scw Exp $      */
2
3 /*-
4  * Copyright (c) 2001, 2002 Wasabi Systems, Inc.
5  * All rights reserved.
6  *
7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *      This product includes software developed for the NetBSD Project by
20  *      Wasabi Systems, Inc.
21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22  *    or promote products derived from this software without specific prior
23  *    written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35  * POSSIBILITY OF SUCH DAMAGE.
36  *
37  * $FreeBSD$
38  *
39  */
40
41 #ifndef _I80321_INTR_H_
42 #define _I80321_INTR_H_
43
44 #define ARM_IRQ_HANDLER _C_LABEL(i80321_intr_dispatch)
45
46 #ifndef _LOCORE
47
48 #include <machine/armreg.h>
49 #include <machine/cpufunc.h>
50
51 #include <arm/xscale/i80321/i80321reg.h>
52
53 void i80321_do_pending(void);
54
55 extern __volatile uint32_t intr_enabled;
56 extern uint32_t intr_steer;
57
58 static __inline void __attribute__((__unused__))
59 i80321_set_intrmask(void)
60 {
61
62         __asm __volatile("mcr p6, 0, %0, c0, c0, 0"
63                 :
64                 : "r" (intr_enabled & ICU_INT_HWMASK));
65 }
66
67 static __inline void
68 i80321_set_intrsteer(void)
69 {
70
71         __asm __volatile("mcr p6, 0, %0, c4, c0, 0"
72             :
73             : "r" (intr_steer & ICU_INT_HWMASK));
74 }
75
76 #if defined ( CPU_XSCALE_80219 )
77 #define INT_SWMASK                                                                                                              \
78         ((1U << ICU_INT_bit26) |                                                                                        \
79          (1U << ICU_INT_bit25) |                                                                                        \
80          (1U << ICU_INT_bit23) |                                                                                        \
81          (1U << ICU_INT_bit22) |                                                                                        \
82          (1U << ICU_INT_bit7)  |                                                                                        \
83          (1U << ICU_INT_bit6)  |                                                                                        \
84          (1U << ICU_INT_bit5)  |                                                                                        \
85          (1U << ICU_INT_bit4))
86 #else
87 #define INT_SWMASK                                                      \
88         ((1U << ICU_INT_bit26) | (1U << ICU_INT_bit22) |                \
89          (1U << ICU_INT_bit5)  | (1U << ICU_INT_bit4))
90 #endif
91
92 #if 0
93 static __inline void __attribute__((__unused__))
94 i80321_splx(int new)
95 {
96         extern __volatile uint32_t intr_enabled;
97         extern __volatile int current_spl_level;
98         extern __volatile int i80321_ipending;
99         extern void i80321_do_pending(void);
100         int oldirqstate, hwpend;
101
102         /* Don't let the compiler re-order this code with preceding code */
103         __insn_barrier();
104
105         current_spl_level = new;
106
107         hwpend = (i80321_ipending & ICU_INT_HWMASK) & ~new;
108         if (hwpend != 0) {
109                 oldirqstate = disable_interrupts(I32_bit);
110                 intr_enabled |= hwpend;
111                 i80321_set_intrmask();
112                 restore_interrupts(oldirqstate);
113         }
114
115         if ((i80321_ipending & INT_SWMASK) & ~new)
116                 i80321_do_pending();
117 }
118
119 static __inline int __attribute__((__unused__))
120 i80321_splraise(int ipl)
121 {
122         extern __volatile int current_spl_level;
123         extern int i80321_imask[];
124         int     old;
125
126         old = current_spl_level;
127         current_spl_level |= i80321_imask[ipl];
128
129         /* Don't let the compiler re-order this code with subsequent code */
130         __insn_barrier();
131
132         return (old);
133 }
134
135 static __inline int __attribute__((__unused__))
136 i80321_spllower(int ipl)
137 {
138         extern __volatile int current_spl_level;
139         extern int i80321_imask[];
140         int old = current_spl_level;
141
142         i80321_splx(i80321_imask[ipl]);
143         return(old);
144 }
145
146 #endif
147 #if !defined(EVBARM_SPL_NOINLINE)
148
149 #define splx(new)               i80321_splx(new)
150 #define _spllower(ipl)          i80321_spllower(ipl)
151 #define _splraise(ipl)          i80321_splraise(ipl)
152 void    _setsoftintr(int);
153
154 #else
155
156 int     _splraise(int);
157 int     _spllower(int);
158 void    splx(int);
159 void    _setsoftintr(int);
160
161 #endif /* ! EVBARM_SPL_NOINLINE */
162
163 #endif /* _LOCORE */
164
165 #endif /* _I80321_INTR_H_ */