aboutsummaryrefslogtreecommitdiffstats
path: root/arch/openrisc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/openrisc')
-rw-r--r--arch/openrisc/include/asm/asm-offsets.h1
-rw-r--r--arch/openrisc/include/asm/bitops.h59
-rw-r--r--arch/openrisc/include/asm/bitops/__ffs.h33
-rw-r--r--arch/openrisc/include/asm/bitops/__fls.h33
-rw-r--r--arch/openrisc/include/asm/bitops/ffs.h32
-rw-r--r--arch/openrisc/include/asm/bitops/fls.h33
-rw-r--r--arch/openrisc/include/asm/byteorder.h1
-rw-r--r--arch/openrisc/include/asm/cpuinfo.h34
-rw-r--r--arch/openrisc/include/asm/delay.h24
-rw-r--r--arch/openrisc/include/asm/elf.h108
-rw-r--r--arch/openrisc/include/asm/io.h51
-rw-r--r--arch/openrisc/include/asm/linkage.h25
-rw-r--r--arch/openrisc/include/asm/mutex.h27
-rw-r--r--arch/openrisc/include/asm/param.h26
-rw-r--r--arch/openrisc/include/asm/processor.h113
-rw-r--r--arch/openrisc/include/asm/serial.h36
-rw-r--r--arch/openrisc/include/asm/spinlock.h24
-rw-r--r--arch/openrisc/include/asm/spr.h42
-rw-r--r--arch/openrisc/include/asm/spr_defs.h604
-rw-r--r--arch/openrisc/include/asm/system.h35
-rw-r--r--arch/openrisc/include/asm/unaligned.h51
-rw-r--r--arch/openrisc/kernel/vmlinux.h12
22 files changed, 1404 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/asm-offsets.h b/arch/openrisc/include/asm/asm-offsets.h
new file mode 100644
index 000000000000..d370ee36a182
--- /dev/null
+++ b/arch/openrisc/include/asm/asm-offsets.h
@@ -0,0 +1 @@
#include <generated/asm-offsets.h>
diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h
new file mode 100644
index 000000000000..a9e11efae14d
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops.h
@@ -0,0 +1,59 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_BITOPS_H
20#define __ASM_OPENRISC_BITOPS_H
21
22/*
23 * Where we haven't written assembly versions yet, we fall back to the
24 * generic implementations. Otherwise, we pull in our (hopefully)
25 * optimized versions.
26 */
27
28#include <linux/irqflags.h>
29#include <linux/compiler.h>
30
31/*
32 * clear_bit may not imply a memory barrier
33 */
34#ifndef smp_mb__before_clear_bit
35#define smp_mb__before_clear_bit() smp_mb()
36#define smp_mb__after_clear_bit() smp_mb()
37#endif
38
39#include <asm/bitops/__ffs.h>
40#include <asm-generic/bitops/ffz.h>
41#include <asm/bitops/fls.h>
42#include <asm/bitops/__fls.h>
43#include <asm-generic/bitops/fls64.h>
44#include <asm-generic/bitops/find.h>
45
46#ifndef _LINUX_BITOPS_H
47#error only <linux/bitops.h> can be included directly
48#endif
49
50#include <asm-generic/bitops/sched.h>
51#include <asm/bitops/ffs.h>
52#include <asm-generic/bitops/hweight.h>
53#include <asm-generic/bitops/lock.h>
54
55#include <asm-generic/bitops/atomic.h>
56#include <asm-generic/bitops/non-atomic.h>
57#include <asm-generic/bitops/ext2-atomic.h>
58
59#endif /* __ASM_GENERIC_BITOPS_H */
diff --git a/arch/openrisc/include/asm/bitops/__ffs.h b/arch/openrisc/include/asm/bitops/__ffs.h
new file mode 100644
index 000000000000..6c8368a34059
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/__ffs.h
@@ -0,0 +1,33 @@
1/*
2 * OpenRISC Linux
3 *
4 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __ASM_OPENRISC___FFS_H
13#define __ASM_OPENRISC___FFS_H
14
15
16#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
17
18static inline unsigned long __ffs(unsigned long x)
19{
20 int ret;
21
22 __asm__ ("l.ff1 %0,%1"
23 : "=r" (ret)
24 : "r" (x));
25
26 return ret-1;
27}
28
29#else
30#include <asm-generic/bitops/__ffs.h>
31#endif
32
33#endif /* __ASM_OPENRISC___FFS_H */
diff --git a/arch/openrisc/include/asm/bitops/__fls.h b/arch/openrisc/include/asm/bitops/__fls.h
new file mode 100644
index 000000000000..c4ecdb4c523b
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/__fls.h
@@ -0,0 +1,33 @@
1/*
2 * OpenRISC Linux
3 *
4 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __ASM_OPENRISC___FLS_H
13#define __ASM_OPENRISC___FLS_H
14
15
16#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
17
18static inline unsigned long __fls(unsigned long x)
19{
20 int ret;
21
22 __asm__ ("l.fl1 %0,%1"
23 : "=r" (ret)
24 : "r" (x));
25
26 return ret-1;
27}
28
29#else
30#include <asm-generic/bitops/__fls.h>
31#endif
32
33#endif /* __ASM_OPENRISC___FLS_H */
diff --git a/arch/openrisc/include/asm/bitops/ffs.h b/arch/openrisc/include/asm/bitops/ffs.h
new file mode 100644
index 000000000000..9de46246ebc7
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/ffs.h
@@ -0,0 +1,32 @@
1/*
2 * OpenRISC Linux
3 *
4 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __ASM_OPENRISC_FFS_H
13#define __ASM_OPENRISC_FFS_H
14
15#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
16
17static inline int ffs(int x)
18{
19 int ret;
20
21 __asm__ ("l.ff1 %0,%1"
22 : "=r" (ret)
23 : "r" (x));
24
25 return ret;
26}
27
28#else
29#include <asm-generic/bitops/ffs.h>
30#endif
31
32#endif /* __ASM_OPENRISC_FFS_H */
diff --git a/arch/openrisc/include/asm/bitops/fls.h b/arch/openrisc/include/asm/bitops/fls.h
new file mode 100644
index 000000000000..9efbf9ad86c4
--- /dev/null
+++ b/arch/openrisc/include/asm/bitops/fls.h
@@ -0,0 +1,33 @@
1/*
2 * OpenRISC Linux
3 *
4 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __ASM_OPENRISC_FLS_H
13#define __ASM_OPENRISC_FLS_H
14
15
16#ifdef CONFIG_OPENRISC_HAVE_INST_FL1
17
18static inline int fls(int x)
19{
20 int ret;
21
22 __asm__ ("l.fl1 %0,%1"
23 : "=r" (ret)
24 : "r" (x));
25
26 return ret;
27}
28
29#else
30#include <asm-generic/bitops/fls.h>
31#endif
32
33#endif /* __ASM_OPENRISC_FLS_H */
diff --git a/arch/openrisc/include/asm/byteorder.h b/arch/openrisc/include/asm/byteorder.h
new file mode 100644
index 000000000000..60d14f7e14e2
--- /dev/null
+++ b/arch/openrisc/include/asm/byteorder.h
@@ -0,0 +1 @@
#include <linux/byteorder/big_endian.h>
diff --git a/arch/openrisc/include/asm/cpuinfo.h b/arch/openrisc/include/asm/cpuinfo.h
new file mode 100644
index 000000000000..917318b6a970
--- /dev/null
+++ b/arch/openrisc/include/asm/cpuinfo.h
@@ -0,0 +1,34 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_CPUINFO_H
20#define __ASM_OPENRISC_CPUINFO_H
21
22struct cpuinfo {
23 u32 clock_frequency;
24
25 u32 icache_size;
26 u32 icache_block_size;
27
28 u32 dcache_size;
29 u32 dcache_block_size;
30};
31
32extern struct cpuinfo cpuinfo;
33
34#endif /* __ASM_OPENRISC_CPUINFO_H */
diff --git a/arch/openrisc/include/asm/delay.h b/arch/openrisc/include/asm/delay.h
new file mode 100644
index 000000000000..17f8bf5a5ac2
--- /dev/null
+++ b/arch/openrisc/include/asm/delay.h
@@ -0,0 +1,24 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#ifndef __ASM_OPENRISC_DELAY_H
18#define __ASM_OPENRISC_DELAY_H
19
20#include <asm-generic/delay.h>
21
22extern unsigned long loops_per_jiffy;
23
24#endif
diff --git a/arch/openrisc/include/asm/elf.h b/arch/openrisc/include/asm/elf.h
new file mode 100644
index 000000000000..2ce603bbfdd3
--- /dev/null
+++ b/arch/openrisc/include/asm/elf.h
@@ -0,0 +1,108 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_ELF_H
20#define __ASM_OPENRISC_ELF_H
21
22/*
23 * ELF register definitions..
24 */
25#include <linux/types.h>
26#include <linux/ptrace.h>
27
28
29/* The OR1K relocation types... not all relevant for module loader */
30#define R_OR32_NONE 0
31#define R_OR32_32 1
32#define R_OR32_16 2
33#define R_OR32_8 3
34#define R_OR32_CONST 4
35#define R_OR32_CONSTH 5
36#define R_OR32_JUMPTARG 6
37#define R_OR32_VTINHERIT 7
38#define R_OR32_VTENTRY 8
39
40typedef unsigned long elf_greg_t;
41
42/*
43 * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is
44 * thus exposed to user-space.
45 */
46#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
47typedef elf_greg_t elf_gregset_t[ELF_NGREG];
48
49/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */
50typedef unsigned long elf_fpregset_t;
51
52/* This should be moved to include/linux/elf.h */
53#define EM_OR32 0x8472
54#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
55
56/*
57 * These are used to set parameters in the core dumps.
58 */
59#define ELF_ARCH EM_OR32
60#define ELF_CLASS ELFCLASS32
61#define ELF_DATA ELFDATA2MSB
62
63#ifdef __KERNEL__
64
65/*
66 * This is used to ensure we don't load something for the wrong architecture.
67 */
68
69#define elf_check_arch(x) \
70 (((x)->e_machine == EM_OR32) || ((x)->e_machine == EM_OPENRISC))
71
72/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
73 use of this is to invoke "./ld.so someprog" to test out a new version of
74 the loader. We need to make sure that it is out of the way of the program
75 that it will "exec", and that there is sufficient room for the brk. */
76
77#define ELF_ET_DYN_BASE (0x08000000)
78
79/*
80 * Enable dump using regset.
81 * This covers all of general/DSP/FPU regs.
82 */
83#define CORE_DUMP_USE_REGSET
84
85#define ELF_EXEC_PAGESIZE 8192
86
87extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt);
88#define ELF_CORE_COPY_REGS(dest, regs) dump_elf_thread(dest, regs);
89
90/* This yields a mask that user programs can use to figure out what
91 instruction set this cpu supports. This could be done in userspace,
92 but it's not easy, and we've already done it here. */
93
94#define ELF_HWCAP (0)
95
96/* This yields a string that ld.so will use to load implementation
97 specific libraries for optimization. This is more specific in
98 intent than poking at uname or /proc/cpuinfo.
99
100 For the moment, we have only optimizations for the Intel generations,
101 but that could change... */
102
103#define ELF_PLATFORM (NULL)
104
105#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
106
107#endif /* __KERNEL__ */
108#endif
diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h
new file mode 100644
index 000000000000..07f5299d6c28
--- /dev/null
+++ b/arch/openrisc/include/asm/io.h
@@ -0,0 +1,51 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
10 * et al.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 */
17
18#ifndef __ASM_OPENRISC_IO_H
19#define __ASM_OPENRISC_IO_H
20
21/*
22 * PCI: can we really do 0 here if we have no port IO?
23 */
24#define IO_SPACE_LIMIT 0
25
26/* OpenRISC has no port IO */
27#define HAVE_ARCH_PIO_SIZE 1
28#define PIO_RESERVED 0X0UL
29#define PIO_OFFSET 0
30#define PIO_MASK 0
31
32#include <asm-generic/io.h>
33
34extern void __iomem *__ioremap(phys_addr_t offset, unsigned long size,
35 pgprot_t prot);
36
37static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
38{
39 return __ioremap(offset, size, PAGE_KERNEL);
40}
41
42/* #define _PAGE_CI 0x002 */
43static inline void __iomem *ioremap_nocache(phys_addr_t offset,
44 unsigned long size)
45{
46 return __ioremap(offset, size,
47 __pgprot(pgprot_val(PAGE_KERNEL) | _PAGE_CI));
48}
49
50extern void iounmap(void *addr);
51#endif
diff --git a/arch/openrisc/include/asm/linkage.h b/arch/openrisc/include/asm/linkage.h
new file mode 100644
index 000000000000..e2638752091a
--- /dev/null
+++ b/arch/openrisc/include/asm/linkage.h
@@ -0,0 +1,25 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_LINKAGE_H
20#define __ASM_OPENRISC_LINKAGE_H
21
22#define __ALIGN .align 0
23#define __ALIGN_STR ".align 0"
24
25#endif /* __ASM_OPENRISC_LINKAGE_H */
diff --git a/arch/openrisc/include/asm/mutex.h b/arch/openrisc/include/asm/mutex.h
new file mode 100644
index 000000000000..b85a0cfa9fc9
--- /dev/null
+++ b/arch/openrisc/include/asm/mutex.h
@@ -0,0 +1,27 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19/*
20 * Pull in the generic implementation for the mutex fastpath.
21 *
22 * TODO: implement optimized primitives instead, or leave the generic
23 * implementation in place, or pick the atomic_xchg() based generic
24 * implementation. (see asm-generic/mutex-xchg.h for details)
25 */
26
27#include <asm-generic/mutex-dec.h>
diff --git a/arch/openrisc/include/asm/param.h b/arch/openrisc/include/asm/param.h
new file mode 100644
index 000000000000..c39a336610e2
--- /dev/null
+++ b/arch/openrisc/include/asm/param.h
@@ -0,0 +1,26 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_PARAM_H
20#define __ASM_OPENRISC_PARAM_H
21
22#define EXEC_PAGESIZE 8192
23
24#include <asm-generic/param.h>
25
26#endif /* __ASM_OPENRISC_PARAM_H */
diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h
new file mode 100644
index 000000000000..bb54c97b9783
--- /dev/null
+++ b/arch/openrisc/include/asm/processor.h
@@ -0,0 +1,113 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_PROCESSOR_H
20#define __ASM_OPENRISC_PROCESSOR_H
21
22#include <asm/spr_defs.h>
23#include <asm/page.h>
24#include <asm/ptrace.h>
25
26#define STACK_TOP TASK_SIZE
27#define STACK_TOP_MAX STACK_TOP
28/* Kernel and user SR register setting */
29#define KERNEL_SR (SPR_SR_DME | SPR_SR_IME | SPR_SR_ICE \
30 | SPR_SR_DCE | SPR_SR_SM)
31#define USER_SR (SPR_SR_DME | SPR_SR_IME | SPR_SR_ICE \
32 | SPR_SR_DCE | SPR_SR_IEE | SPR_SR_TEE)
33/*
34 * Default implementation of macro that returns current
35 * instruction pointer ("program counter").
36 */
37#define current_text_addr() ({ __label__ _l; _l: &&_l; })
38
39/*
40 * User space process size. This is hardcoded into a few places,
41 * so don't change it unless you know what you are doing.
42 */
43
44#define TASK_SIZE (0x80000000UL)
45
46/* This decides where the kernel will search for a free chunk of vm
47 * space during mmap's.
48 */
49#define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3)
50
51#ifndef __ASSEMBLY__
52
53struct task_struct;
54
55struct thread_struct {
56};
57
58/*
59 * At user->kernel entry, the pt_regs struct is stacked on the top of the
60 * kernel-stack. This macro allows us to find those regs for a task.
61 * Notice that subsequent pt_regs stackings, like recursive interrupts
62 * occurring while we're in the kernel, won't affect this - only the first
63 * user->kernel transition registers are reached by this (i.e. not regs
64 * for running signal handler)
65 */
66#define user_regs(thread_info) (((struct pt_regs *)((unsigned long)(thread_info) + THREAD_SIZE - STACK_FRAME_OVERHEAD)) - 1)
67
68/*
69 * Dito but for the currently running task
70 */
71
72#define task_pt_regs(task) user_regs(task_thread_info(task))
73#define current_regs() user_regs(current_thread_info())
74
75extern inline void prepare_to_copy(struct task_struct *tsk)
76{
77}
78
79#define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack)
80
81#define INIT_THREAD { }
82
83
84#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc);
85#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp);
86
87
88extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
89
90void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp);
91void release_thread(struct task_struct *);
92unsigned long get_wchan(struct task_struct *p);
93
94/*
95 * Free current thread data structures etc..
96 */
97
98extern inline void exit_thread(void)
99{
100 /* Nothing needs to be done. */
101}
102
103/*
104 * Return saved PC of a blocked thread. For now, this is the "user" PC
105 */
106extern unsigned long thread_saved_pc(struct task_struct *t);
107
108#define init_stack (init_thread_union.stack)
109
110#define cpu_relax() do { } while (0)
111
112#endif /* __ASSEMBLY__ */
113#endif /* __ASM_OPENRISC_PROCESSOR_H */
diff --git a/arch/openrisc/include/asm/serial.h b/arch/openrisc/include/asm/serial.h
new file mode 100644
index 000000000000..270a45241639
--- /dev/null
+++ b/arch/openrisc/include/asm/serial.h
@@ -0,0 +1,36 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_SERIAL_H
20#define __ASM_OPENRISC_SERIAL_H
21
22#ifdef __KERNEL__
23
24#include <asm/cpuinfo.h>
25
26/* There's a generic version of this file, but it assumes a 1.8MHz UART clk...
27 * this, on the other hand, assumes the UART clock is tied to the system
28 * clock... 8250_early.c (early 8250 serial console) actually uses this, so
29 * it needs to be correct to get the early console working.
30 */
31
32#define BASE_BAUD (cpuinfo.clock_frequency/16)
33
34#endif /* __KERNEL__ */
35
36#endif /* __ASM_OPENRISC_SERIAL_H */
diff --git a/arch/openrisc/include/asm/spinlock.h b/arch/openrisc/include/asm/spinlock.h
new file mode 100644
index 000000000000..fd00a3a24123
--- /dev/null
+++ b/arch/openrisc/include/asm/spinlock.h
@@ -0,0 +1,24 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_SPINLOCK_H
20#define __ASM_OPENRISC_SPINLOCK_H
21
22#error "or32 doesn't do SMP yet"
23
24#endif
diff --git a/arch/openrisc/include/asm/spr.h b/arch/openrisc/include/asm/spr.h
new file mode 100644
index 000000000000..1cccb42dd477
--- /dev/null
+++ b/arch/openrisc/include/asm/spr.h
@@ -0,0 +1,42 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#ifndef __ASM_OPENRISC_SPR_H
18#define __ASM_OPENRISC_SPR_H
19
20#define mtspr(_spr, _val) __asm__ __volatile__ ( \
21 "l.mtspr r0,%1,%0" \
22 : : "K" (_spr), "r" (_val))
23#define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \
24 "l.mtspr %0,%1,%2" \
25 : : "r" (_off), "r" (_val), "K" (_spr))
26
27static inline unsigned long mfspr(unsigned long add)
28{
29 unsigned long ret;
30 __asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
31 return ret;
32}
33
34static inline unsigned long mfspr_off(unsigned long add, unsigned long offset)
35{
36 unsigned long ret;
37 __asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret)
38 : "r" (offset), "K" (add));
39 return ret;
40}
41
42#endif
diff --git a/arch/openrisc/include/asm/spr_defs.h b/arch/openrisc/include/asm/spr_defs.h
new file mode 100644
index 000000000000..5dbc668865c4
--- /dev/null
+++ b/arch/openrisc/include/asm/spr_defs.h
@@ -0,0 +1,604 @@
1/*
2 * OpenRISC Linux
3 *
4 * SPR Definitions
5 *
6 * Copyright (C) 2000 Damjan Lampret
7 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
8 * Copyright (C) 2008, 2010 Embecosm Limited
9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
10 * et al.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This file is part of OpenRISC 1000 Architectural Simulator.
18 */
19
20#ifndef SPR_DEFS__H
21#define SPR_DEFS__H
22
23/* Definition of special-purpose registers (SPRs). */
24
25#define MAX_GRPS (32)
26#define MAX_SPRS_PER_GRP_BITS (11)
27#define MAX_SPRS_PER_GRP (1 << MAX_SPRS_PER_GRP_BITS)
28#define MAX_SPRS (0x10000)
29
30/* Base addresses for the groups */
31#define SPRGROUP_SYS (0 << MAX_SPRS_PER_GRP_BITS)
32#define SPRGROUP_DMMU (1 << MAX_SPRS_PER_GRP_BITS)
33#define SPRGROUP_IMMU (2 << MAX_SPRS_PER_GRP_BITS)
34#define SPRGROUP_DC (3 << MAX_SPRS_PER_GRP_BITS)
35#define SPRGROUP_IC (4 << MAX_SPRS_PER_GRP_BITS)
36#define SPRGROUP_MAC (5 << MAX_SPRS_PER_GRP_BITS)
37#define SPRGROUP_D (6 << MAX_SPRS_PER_GRP_BITS)
38#define SPRGROUP_PC (7 << MAX_SPRS_PER_GRP_BITS)
39#define SPRGROUP_PM (8 << MAX_SPRS_PER_GRP_BITS)
40#define SPRGROUP_PIC (9 << MAX_SPRS_PER_GRP_BITS)
41#define SPRGROUP_TT (10 << MAX_SPRS_PER_GRP_BITS)
42#define SPRGROUP_FP (11 << MAX_SPRS_PER_GRP_BITS)
43
44/* System control and status group */
45#define SPR_VR (SPRGROUP_SYS + 0)
46#define SPR_UPR (SPRGROUP_SYS + 1)
47#define SPR_CPUCFGR (SPRGROUP_SYS + 2)
48#define SPR_DMMUCFGR (SPRGROUP_SYS + 3)
49#define SPR_IMMUCFGR (SPRGROUP_SYS + 4)
50#define SPR_DCCFGR (SPRGROUP_SYS + 5)
51#define SPR_ICCFGR (SPRGROUP_SYS + 6)
52#define SPR_DCFGR (SPRGROUP_SYS + 7)
53#define SPR_PCCFGR (SPRGROUP_SYS + 8)
54#define SPR_NPC (SPRGROUP_SYS + 16) /* CZ 21/06/01 */
55#define SPR_SR (SPRGROUP_SYS + 17) /* CZ 21/06/01 */
56#define SPR_PPC (SPRGROUP_SYS + 18) /* CZ 21/06/01 */
57#define SPR_FPCSR (SPRGROUP_SYS + 20) /* CZ 21/06/01 */
58#define SPR_EPCR_BASE (SPRGROUP_SYS + 32) /* CZ 21/06/01 */
59#define SPR_EPCR_LAST (SPRGROUP_SYS + 47) /* CZ 21/06/01 */
60#define SPR_EEAR_BASE (SPRGROUP_SYS + 48)
61#define SPR_EEAR_LAST (SPRGROUP_SYS + 63)
62#define SPR_ESR_BASE (SPRGROUP_SYS + 64)
63#define SPR_ESR_LAST (SPRGROUP_SYS + 79)
64#define SPR_GPR_BASE (SPRGROUP_SYS + 1024)
65
66/* Data MMU group */
67#define SPR_DMMUCR (SPRGROUP_DMMU + 0)
68#define SPR_DTLBEIR (SPRGROUP_DMMU + 2)
69#define SPR_DTLBMR_BASE(WAY) (SPRGROUP_DMMU + 0x200 + (WAY) * 0x100)
70#define SPR_DTLBMR_LAST(WAY) (SPRGROUP_DMMU + 0x27f + (WAY) * 0x100)
71#define SPR_DTLBTR_BASE(WAY) (SPRGROUP_DMMU + 0x280 + (WAY) * 0x100)
72#define SPR_DTLBTR_LAST(WAY) (SPRGROUP_DMMU + 0x2ff + (WAY) * 0x100)
73
74/* Instruction MMU group */
75#define SPR_IMMUCR (SPRGROUP_IMMU + 0)
76#define SPR_ITLBEIR (SPRGROUP_IMMU + 2)
77#define SPR_ITLBMR_BASE(WAY) (SPRGROUP_IMMU + 0x200 + (WAY) * 0x100)
78#define SPR_ITLBMR_LAST(WAY) (SPRGROUP_IMMU + 0x27f + (WAY) * 0x100)
79#define SPR_ITLBTR_BASE(WAY) (SPRGROUP_IMMU + 0x280 + (WAY) * 0x100)
80#define SPR_ITLBTR_LAST(WAY) (SPRGROUP_IMMU + 0x2ff + (WAY) * 0x100)
81
82/* Data cache group */
83#define SPR_DCCR (SPRGROUP_DC + 0)
84#define SPR_DCBPR (SPRGROUP_DC + 1)
85#define SPR_DCBFR (SPRGROUP_DC + 2)
86#define SPR_DCBIR (SPRGROUP_DC + 3)
87#define SPR_DCBWR (SPRGROUP_DC + 4)
88#define SPR_DCBLR (SPRGROUP_DC + 5)
89#define SPR_DCR_BASE(WAY) (SPRGROUP_DC + 0x200 + (WAY) * 0x200)
90#define SPR_DCR_LAST(WAY) (SPRGROUP_DC + 0x3ff + (WAY) * 0x200)
91
92/* Instruction cache group */
93#define SPR_ICCR (SPRGROUP_IC + 0)
94#define SPR_ICBPR (SPRGROUP_IC + 1)
95#define SPR_ICBIR (SPRGROUP_IC + 2)
96#define SPR_ICBLR (SPRGROUP_IC + 3)
97#define SPR_ICR_BASE(WAY) (SPRGROUP_IC + 0x200 + (WAY) * 0x200)
98#define SPR_ICR_LAST(WAY) (SPRGROUP_IC + 0x3ff + (WAY) * 0x200)
99
100/* MAC group */
101#define SPR_MACLO (SPRGROUP_MAC + 1)
102#define SPR_MACHI (SPRGROUP_MAC + 2)
103
104/* Debug group */
105#define SPR_DVR(N) (SPRGROUP_D + (N))
106#define SPR_DCR(N) (SPRGROUP_D + 8 + (N))
107#define SPR_DMR1 (SPRGROUP_D + 16)
108#define SPR_DMR2 (SPRGROUP_D + 17)
109#define SPR_DWCR0 (SPRGROUP_D + 18)
110#define SPR_DWCR1 (SPRGROUP_D + 19)
111#define SPR_DSR (SPRGROUP_D + 20)
112#define SPR_DRR (SPRGROUP_D + 21)
113
114/* Performance counters group */
115#define SPR_PCCR(N) (SPRGROUP_PC + (N))
116#define SPR_PCMR(N) (SPRGROUP_PC + 8 + (N))
117
118/* Power management group */
119#define SPR_PMR (SPRGROUP_PM + 0)
120
121/* PIC group */
122#define SPR_PICMR (SPRGROUP_PIC + 0)
123#define SPR_PICPR (SPRGROUP_PIC + 1)
124#define SPR_PICSR (SPRGROUP_PIC + 2)
125
126/* Tick Timer group */
127#define SPR_TTMR (SPRGROUP_TT + 0)
128#define SPR_TTCR (SPRGROUP_TT + 1)
129
130/*
131 * Bit definitions for the Version Register
132 *
133 */
134#define SPR_VR_VER 0xff000000 /* Processor version */
135#define SPR_VR_CFG 0x00ff0000 /* Processor configuration */
136#define SPR_VR_RES 0x0000ffc0 /* Reserved */
137#define SPR_VR_REV 0x0000003f /* Processor revision */
138
139#define SPR_VR_VER_OFF 24
140#define SPR_VR_CFG_OFF 16
141#define SPR_VR_REV_OFF 0
142
143/*
144 * Bit definitions for the Unit Present Register
145 *
146 */
147#define SPR_UPR_UP 0x00000001 /* UPR present */
148#define SPR_UPR_DCP 0x00000002 /* Data cache present */
149#define SPR_UPR_ICP 0x00000004 /* Instruction cache present */
150#define SPR_UPR_DMP 0x00000008 /* Data MMU present */
151#define SPR_UPR_IMP 0x00000010 /* Instruction MMU present */
152#define SPR_UPR_MP 0x00000020 /* MAC present */
153#define SPR_UPR_DUP 0x00000040 /* Debug unit present */
154#define SPR_UPR_PCUP 0x00000080 /* Performance counters unit present */
155#define SPR_UPR_PMP 0x00000100 /* Power management present */
156#define SPR_UPR_PICP 0x00000200 /* PIC present */
157#define SPR_UPR_TTP 0x00000400 /* Tick timer present */
158#define SPR_UPR_RES 0x00fe0000 /* Reserved */
159#define SPR_UPR_CUP 0xff000000 /* Context units present */
160
161/*
162 * JPB: Bit definitions for the CPU configuration register
163 *
164 */
165#define SPR_CPUCFGR_NSGF 0x0000000f /* Number of shadow GPR files */
166#define SPR_CPUCFGR_CGF 0x00000010 /* Custom GPR file */
167#define SPR_CPUCFGR_OB32S 0x00000020 /* ORBIS32 supported */
168#define SPR_CPUCFGR_OB64S 0x00000040 /* ORBIS64 supported */
169#define SPR_CPUCFGR_OF32S 0x00000080 /* ORFPX32 supported */
170#define SPR_CPUCFGR_OF64S 0x00000100 /* ORFPX64 supported */
171#define SPR_CPUCFGR_OV64S 0x00000200 /* ORVDX64 supported */
172#define SPR_CPUCFGR_RES 0xfffffc00 /* Reserved */
173
174/*
175 * JPB: Bit definitions for the Debug configuration register and other
176 * constants.
177 *
178 */
179
180#define SPR_DCFGR_NDP 0x00000007 /* Number of matchpoints mask */
181#define SPR_DCFGR_NDP1 0x00000000 /* One matchpoint supported */
182#define SPR_DCFGR_NDP2 0x00000001 /* Two matchpoints supported */
183#define SPR_DCFGR_NDP3 0x00000002 /* Three matchpoints supported */
184#define SPR_DCFGR_NDP4 0x00000003 /* Four matchpoints supported */
185#define SPR_DCFGR_NDP5 0x00000004 /* Five matchpoints supported */
186#define SPR_DCFGR_NDP6 0x00000005 /* Six matchpoints supported */
187#define SPR_DCFGR_NDP7 0x00000006 /* Seven matchpoints supported */
188#define SPR_DCFGR_NDP8 0x00000007 /* Eight matchpoints supported */
189#define SPR_DCFGR_WPCI 0x00000008 /* Watchpoint counters implemented */
190
191#define MATCHPOINTS_TO_NDP(n) (1 == n ? SPR_DCFGR_NDP1 : \
192 2 == n ? SPR_DCFGR_NDP2 : \
193 3 == n ? SPR_DCFGR_NDP3 : \
194 4 == n ? SPR_DCFGR_NDP4 : \
195 5 == n ? SPR_DCFGR_NDP5 : \
196 6 == n ? SPR_DCFGR_NDP6 : \
197 7 == n ? SPR_DCFGR_NDP7 : SPR_DCFGR_NDP8)
198#define MAX_MATCHPOINTS 8
199#define MAX_WATCHPOINTS (MAX_MATCHPOINTS + 2)
200
201/*
202 * Bit definitions for the Supervision Register
203 *
204 */
205#define SPR_SR_SM 0x00000001 /* Supervisor Mode */
206#define SPR_SR_TEE 0x00000002 /* Tick timer Exception Enable */
207#define SPR_SR_IEE 0x00000004 /* Interrupt Exception Enable */
208#define SPR_SR_DCE 0x00000008 /* Data Cache Enable */
209#define SPR_SR_ICE 0x00000010 /* Instruction Cache Enable */
210#define SPR_SR_DME 0x00000020 /* Data MMU Enable */
211#define SPR_SR_IME 0x00000040 /* Instruction MMU Enable */
212#define SPR_SR_LEE 0x00000080 /* Little Endian Enable */
213#define SPR_SR_CE 0x00000100 /* CID Enable */
214#define SPR_SR_F 0x00000200 /* Condition Flag */
215#define SPR_SR_CY 0x00000400 /* Carry flag */
216#define SPR_SR_OV 0x00000800 /* Overflow flag */
217#define SPR_SR_OVE 0x00001000 /* Overflow flag Exception */
218#define SPR_SR_DSX 0x00002000 /* Delay Slot Exception */
219#define SPR_SR_EPH 0x00004000 /* Exception Prefix High */
220#define SPR_SR_FO 0x00008000 /* Fixed one */
221#define SPR_SR_SUMRA 0x00010000 /* Supervisor SPR read access */
222#define SPR_SR_RES 0x0ffe0000 /* Reserved */
223#define SPR_SR_CID 0xf0000000 /* Context ID */
224
225/*
226 * Bit definitions for the Data MMU Control Register
227 *
228 */
229#define SPR_DMMUCR_P2S 0x0000003e /* Level 2 Page Size */
230#define SPR_DMMUCR_P1S 0x000007c0 /* Level 1 Page Size */
231#define SPR_DMMUCR_VADDR_WIDTH 0x0000f800 /* Virtual ADDR Width */
232#define SPR_DMMUCR_PADDR_WIDTH 0x000f0000 /* Physical ADDR Width */
233
234/*
235 * Bit definitions for the Instruction MMU Control Register
236 *
237 */
238#define SPR_IMMUCR_P2S 0x0000003e /* Level 2 Page Size */
239#define SPR_IMMUCR_P1S 0x000007c0 /* Level 1 Page Size */
240#define SPR_IMMUCR_VADDR_WIDTH 0x0000f800 /* Virtual ADDR Width */
241#define SPR_IMMUCR_PADDR_WIDTH 0x000f0000 /* Physical ADDR Width */
242
243/*
244 * Bit definitions for the Data TLB Match Register
245 *
246 */
247#define SPR_DTLBMR_V 0x00000001 /* Valid */
248#define SPR_DTLBMR_PL1 0x00000002 /* Page Level 1 (if 0 then PL2) */
249#define SPR_DTLBMR_CID 0x0000003c /* Context ID */
250#define SPR_DTLBMR_LRU 0x000000c0 /* Least Recently Used */
251#define SPR_DTLBMR_VPN 0xfffff000 /* Virtual Page Number */
252
253/*
254 * Bit definitions for the Data TLB Translate Register
255 *
256 */
257#define SPR_DTLBTR_CC 0x00000001 /* Cache Coherency */
258#define SPR_DTLBTR_CI 0x00000002 /* Cache Inhibit */
259#define SPR_DTLBTR_WBC 0x00000004 /* Write-Back Cache */
260#define SPR_DTLBTR_WOM 0x00000008 /* Weakly-Ordered Memory */
261#define SPR_DTLBTR_A 0x00000010 /* Accessed */
262#define SPR_DTLBTR_D 0x00000020 /* Dirty */
263#define SPR_DTLBTR_URE 0x00000040 /* User Read Enable */
264#define SPR_DTLBTR_UWE 0x00000080 /* User Write Enable */
265#define SPR_DTLBTR_SRE 0x00000100 /* Supervisor Read Enable */
266#define SPR_DTLBTR_SWE 0x00000200 /* Supervisor Write Enable */
267#define SPR_DTLBTR_PPN 0xfffff000 /* Physical Page Number */
268
269/*
270 * Bit definitions for the Instruction TLB Match Register
271 *
272 */
273#define SPR_ITLBMR_V 0x00000001 /* Valid */
274#define SPR_ITLBMR_PL1 0x00000002 /* Page Level 1 (if 0 then PL2) */
275#define SPR_ITLBMR_CID 0x0000003c /* Context ID */
276#define SPR_ITLBMR_LRU 0x000000c0 /* Least Recently Used */
277#define SPR_ITLBMR_VPN 0xfffff000 /* Virtual Page Number */
278
279/*
280 * Bit definitions for the Instruction TLB Translate Register
281 *
282 */
283#define SPR_ITLBTR_CC 0x00000001 /* Cache Coherency */
284#define SPR_ITLBTR_CI 0x00000002 /* Cache Inhibit */
285#define SPR_ITLBTR_WBC 0x00000004 /* Write-Back Cache */
286#define SPR_ITLBTR_WOM 0x00000008 /* Weakly-Ordered Memory */
287#define SPR_ITLBTR_A 0x00000010 /* Accessed */
288#define SPR_ITLBTR_D 0x00000020 /* Dirty */
289#define SPR_ITLBTR_SXE 0x00000040 /* User Read Enable */
290#define SPR_ITLBTR_UXE 0x00000080 /* User Write Enable */
291#define SPR_ITLBTR_PPN 0xfffff000 /* Physical Page Number */
292
293/*
294 * Bit definitions for Data Cache Control register
295 *
296 */
297#define SPR_DCCR_EW 0x000000ff /* Enable ways */
298
299/*
300 * Bit definitions for Insn Cache Control register
301 *
302 */
303#define SPR_ICCR_EW 0x000000ff /* Enable ways */
304
305/*
306 * Bit definitions for Data Cache Configuration Register
307 *
308 */
309
310#define SPR_DCCFGR_NCW 0x00000007
311#define SPR_DCCFGR_NCS 0x00000078
312#define SPR_DCCFGR_CBS 0x00000080
313#define SPR_DCCFGR_CWS 0x00000100
314#define SPR_DCCFGR_CCRI 0x00000200
315#define SPR_DCCFGR_CBIRI 0x00000400
316#define SPR_DCCFGR_CBPRI 0x00000800
317#define SPR_DCCFGR_CBLRI 0x00001000
318#define SPR_DCCFGR_CBFRI 0x00002000
319#define SPR_DCCFGR_CBWBRI 0x00004000
320
321#define SPR_DCCFGR_NCW_OFF 0
322#define SPR_DCCFGR_NCS_OFF 3
323#define SPR_DCCFGR_CBS_OFF 7
324
325/*
326 * Bit definitions for Instruction Cache Configuration Register
327 *
328 */
329#define SPR_ICCFGR_NCW 0x00000007
330#define SPR_ICCFGR_NCS 0x00000078
331#define SPR_ICCFGR_CBS 0x00000080
332#define SPR_ICCFGR_CCRI 0x00000200
333#define SPR_ICCFGR_CBIRI 0x00000400
334#define SPR_ICCFGR_CBPRI 0x00000800
335#define SPR_ICCFGR_CBLRI 0x00001000
336
337#define SPR_ICCFGR_NCW_OFF 0
338#define SPR_ICCFGR_NCS_OFF 3
339#define SPR_ICCFGR_CBS_OFF 7
340
341/*
342 * Bit definitions for Data MMU Configuration Register
343 *
344 */
345
346#define SPR_DMMUCFGR_NTW 0x00000003
347#define SPR_DMMUCFGR_NTS 0x0000001C
348#define SPR_DMMUCFGR_NAE 0x000000E0
349#define SPR_DMMUCFGR_CRI 0x00000100
350#define SPR_DMMUCFGR_PRI 0x00000200
351#define SPR_DMMUCFGR_TEIRI 0x00000400
352#define SPR_DMMUCFGR_HTR 0x00000800
353
354#define SPR_DMMUCFGR_NTW_OFF 0
355#define SPR_DMMUCFGR_NTS_OFF 2
356
357/*
358 * Bit definitions for Instruction MMU Configuration Register
359 *
360 */
361
362#define SPR_IMMUCFGR_NTW 0x00000003
363#define SPR_IMMUCFGR_NTS 0x0000001C
364#define SPR_IMMUCFGR_NAE 0x000000E0
365#define SPR_IMMUCFGR_CRI 0x00000100
366#define SPR_IMMUCFGR_PRI 0x00000200
367#define SPR_IMMUCFGR_TEIRI 0x00000400
368#define SPR_IMMUCFGR_HTR 0x00000800
369
370#define SPR_IMMUCFGR_NTW_OFF 0
371#define SPR_IMMUCFGR_NTS_OFF 2
372
373/*
374 * Bit definitions for Debug Control registers
375 *
376 */
377#define SPR_DCR_DP 0x00000001 /* DVR/DCR present */
378#define SPR_DCR_CC 0x0000000e /* Compare condition */
379#define SPR_DCR_SC 0x00000010 /* Signed compare */
380#define SPR_DCR_CT 0x000000e0 /* Compare to */
381
382/* Bit results with SPR_DCR_CC mask */
383#define SPR_DCR_CC_MASKED 0x00000000
384#define SPR_DCR_CC_EQUAL 0x00000002
385#define SPR_DCR_CC_LESS 0x00000004
386#define SPR_DCR_CC_LESSE 0x00000006
387#define SPR_DCR_CC_GREAT 0x00000008
388#define SPR_DCR_CC_GREATE 0x0000000a
389#define SPR_DCR_CC_NEQUAL 0x0000000c
390
391/* Bit results with SPR_DCR_CT mask */
392#define SPR_DCR_CT_DISABLED 0x00000000
393#define SPR_DCR_CT_IFEA 0x00000020
394#define SPR_DCR_CT_LEA 0x00000040
395#define SPR_DCR_CT_SEA 0x00000060
396#define SPR_DCR_CT_LD 0x00000080
397#define SPR_DCR_CT_SD 0x000000a0
398#define SPR_DCR_CT_LSEA 0x000000c0
399#define SPR_DCR_CT_LSD 0x000000e0
400/* SPR_DCR_CT_LSD doesn't seem to be implemented anywhere in or1ksim. 2004-1-30 HP */
401
402/*
403 * Bit definitions for Debug Mode 1 register
404 *
405 */
406#define SPR_DMR1_CW 0x000fffff /* Chain register pair data */
407#define SPR_DMR1_CW0_AND 0x00000001
408#define SPR_DMR1_CW0_OR 0x00000002
409#define SPR_DMR1_CW0 (SPR_DMR1_CW0_AND | SPR_DMR1_CW0_OR)
410#define SPR_DMR1_CW1_AND 0x00000004
411#define SPR_DMR1_CW1_OR 0x00000008
412#define SPR_DMR1_CW1 (SPR_DMR1_CW1_AND | SPR_DMR1_CW1_OR)
413#define SPR_DMR1_CW2_AND 0x00000010
414#define SPR_DMR1_CW2_OR 0x00000020
415#define SPR_DMR1_CW2 (SPR_DMR1_CW2_AND | SPR_DMR1_CW2_OR)
416#define SPR_DMR1_CW3_AND 0x00000040
417#define SPR_DMR1_CW3_OR 0x00000080
418#define SPR_DMR1_CW3 (SPR_DMR1_CW3_AND | SPR_DMR1_CW3_OR)
419#define SPR_DMR1_CW4_AND 0x00000100
420#define SPR_DMR1_CW4_OR 0x00000200
421#define SPR_DMR1_CW4 (SPR_DMR1_CW4_AND | SPR_DMR1_CW4_OR)
422#define SPR_DMR1_CW5_AND 0x00000400
423#define SPR_DMR1_CW5_OR 0x00000800
424#define SPR_DMR1_CW5 (SPR_DMR1_CW5_AND | SPR_DMR1_CW5_OR)
425#define SPR_DMR1_CW6_AND 0x00001000
426#define SPR_DMR1_CW6_OR 0x00002000
427#define SPR_DMR1_CW6 (SPR_DMR1_CW6_AND | SPR_DMR1_CW6_OR)
428#define SPR_DMR1_CW7_AND 0x00004000
429#define SPR_DMR1_CW7_OR 0x00008000
430#define SPR_DMR1_CW7 (SPR_DMR1_CW7_AND | SPR_DMR1_CW7_OR)
431#define SPR_DMR1_CW8_AND 0x00010000
432#define SPR_DMR1_CW8_OR 0x00020000
433#define SPR_DMR1_CW8 (SPR_DMR1_CW8_AND | SPR_DMR1_CW8_OR)
434#define SPR_DMR1_CW9_AND 0x00040000
435#define SPR_DMR1_CW9_OR 0x00080000
436#define SPR_DMR1_CW9 (SPR_DMR1_CW9_AND | SPR_DMR1_CW9_OR)
437#define SPR_DMR1_RES1 0x00300000 /* Reserved */
438#define SPR_DMR1_ST 0x00400000 /* Single-step trace*/
439#define SPR_DMR1_BT 0x00800000 /* Branch trace */
440#define SPR_DMR1_RES2 0xff000000 /* Reserved */
441
442/*
443 * Bit definitions for Debug Mode 2 register. AWTC and WGB corrected by JPB
444 *
445 */
446#define SPR_DMR2_WCE0 0x00000001 /* Watchpoint counter 0 enable */
447#define SPR_DMR2_WCE1 0x00000002 /* Watchpoint counter 0 enable */
448#define SPR_DMR2_AWTC 0x00000ffc /* Assign watchpoints to counters */
449#define SPR_DMR2_AWTC_OFF 2 /* Bit offset to AWTC field */
450#define SPR_DMR2_WGB 0x003ff000 /* Watchpoints generating breakpoint */
451#define SPR_DMR2_WGB_OFF 12 /* Bit offset to WGB field */
452#define SPR_DMR2_WBS 0xffc00000 /* JPB: Watchpoint status */
453#define SPR_DMR2_WBS_OFF 22 /* Bit offset to WBS field */
454
455/*
456 * Bit definitions for Debug watchpoint counter registers
457 *
458 */
459#define SPR_DWCR_COUNT 0x0000ffff /* Count */
460#define SPR_DWCR_MATCH 0xffff0000 /* Match */
461#define SPR_DWCR_MATCH_OFF 16 /* Match bit offset */
462
463/*
464 * Bit definitions for Debug stop register
465 *
466 */
467#define SPR_DSR_RSTE 0x00000001 /* Reset exception */
468#define SPR_DSR_BUSEE 0x00000002 /* Bus error exception */
469#define SPR_DSR_DPFE 0x00000004 /* Data Page Fault exception */
470#define SPR_DSR_IPFE 0x00000008 /* Insn Page Fault exception */
471#define SPR_DSR_TTE 0x00000010 /* Tick Timer exception */
472#define SPR_DSR_AE 0x00000020 /* Alignment exception */
473#define SPR_DSR_IIE 0x00000040 /* Illegal Instruction exception */
474#define SPR_DSR_IE 0x00000080 /* Interrupt exception */
475#define SPR_DSR_DME 0x00000100 /* DTLB miss exception */
476#define SPR_DSR_IME 0x00000200 /* ITLB miss exception */
477#define SPR_DSR_RE 0x00000400 /* Range exception */
478#define SPR_DSR_SCE 0x00000800 /* System call exception */
479#define SPR_DSR_FPE 0x00001000 /* Floating Point Exception */
480#define SPR_DSR_TE 0x00002000 /* Trap exception */
481
482/*
483 * Bit definitions for Debug reason register
484 *
485 */
486#define SPR_DRR_RSTE 0x00000001 /* Reset exception */
487#define SPR_DRR_BUSEE 0x00000002 /* Bus error exception */
488#define SPR_DRR_DPFE 0x00000004 /* Data Page Fault exception */
489#define SPR_DRR_IPFE 0x00000008 /* Insn Page Fault exception */
490#define SPR_DRR_TTE 0x00000010 /* Tick Timer exception */
491#define SPR_DRR_AE 0x00000020 /* Alignment exception */
492#define SPR_DRR_IIE 0x00000040 /* Illegal Instruction exception */
493#define SPR_DRR_IE 0x00000080 /* Interrupt exception */
494#define SPR_DRR_DME 0x00000100 /* DTLB miss exception */
495#define SPR_DRR_IME 0x00000200 /* ITLB miss exception */
496#define SPR_DRR_RE 0x00000400 /* Range exception */
497#define SPR_DRR_SCE 0x00000800 /* System call exception */
498#define SPR_DRR_FPE 0x00001000 /* Floating Point Exception */
499#define SPR_DRR_TE 0x00002000 /* Trap exception */
500
501/*
502 * Bit definitions for Performance counters mode registers
503 *
504 */
505#define SPR_PCMR_CP 0x00000001 /* Counter present */
506#define SPR_PCMR_UMRA 0x00000002 /* User mode read access */
507#define SPR_PCMR_CISM 0x00000004 /* Count in supervisor mode */
508#define SPR_PCMR_CIUM 0x00000008 /* Count in user mode */
509#define SPR_PCMR_LA 0x00000010 /* Load access event */
510#define SPR_PCMR_SA 0x00000020 /* Store access event */
511#define SPR_PCMR_IF 0x00000040 /* Instruction fetch event*/
512#define SPR_PCMR_DCM 0x00000080 /* Data cache miss event */
513#define SPR_PCMR_ICM 0x00000100 /* Insn cache miss event */
514#define SPR_PCMR_IFS 0x00000200 /* Insn fetch stall event */
515#define SPR_PCMR_LSUS 0x00000400 /* LSU stall event */
516#define SPR_PCMR_BS 0x00000800 /* Branch stall event */
517#define SPR_PCMR_DTLBM 0x00001000 /* DTLB miss event */
518#define SPR_PCMR_ITLBM 0x00002000 /* ITLB miss event */
519#define SPR_PCMR_DDS 0x00004000 /* Data dependency stall event */
520#define SPR_PCMR_WPE 0x03ff8000 /* Watchpoint events */
521
522/*
523 * Bit definitions for the Power management register
524 *
525 */
526#define SPR_PMR_SDF 0x0000000f /* Slow down factor */
527#define SPR_PMR_DME 0x00000010 /* Doze mode enable */
528#define SPR_PMR_SME 0x00000020 /* Sleep mode enable */
529#define SPR_PMR_DCGE 0x00000040 /* Dynamic clock gating enable */
530#define SPR_PMR_SUME 0x00000080 /* Suspend mode enable */
531
532/*
533 * Bit definitions for PICMR
534 *
535 */
536#define SPR_PICMR_IUM 0xfffffffc /* Interrupt unmask */
537
538/*
539 * Bit definitions for PICPR
540 *
541 */
542#define SPR_PICPR_IPRIO 0xfffffffc /* Interrupt priority */
543
544/*
545 * Bit definitions for PICSR
546 *
547 */
548#define SPR_PICSR_IS 0xffffffff /* Interrupt status */
549
550/*
551 * Bit definitions for Tick Timer Control Register
552 *
553 */
554
555#define SPR_TTCR_CNT 0xffffffff /* Count, time period */
556#define SPR_TTMR_TP 0x0fffffff /* Time period */
557#define SPR_TTMR_IP 0x10000000 /* Interrupt Pending */
558#define SPR_TTMR_IE 0x20000000 /* Interrupt Enable */
559#define SPR_TTMR_DI 0x00000000 /* Disabled */
560#define SPR_TTMR_RT 0x40000000 /* Restart tick */
561#define SPR_TTMR_SR 0x80000000 /* Single run */
562#define SPR_TTMR_CR 0xc0000000 /* Continuous run */
563#define SPR_TTMR_M 0xc0000000 /* Tick mode */
564
565/*
566 * Bit definitions for the FP Control Status Register
567 *
568 */
569#define SPR_FPCSR_FPEE 0x00000001 /* Floating Point Exception Enable */
570#define SPR_FPCSR_RM 0x00000006 /* Rounding Mode */
571#define SPR_FPCSR_OVF 0x00000008 /* Overflow Flag */
572#define SPR_FPCSR_UNF 0x00000010 /* Underflow Flag */
573#define SPR_FPCSR_SNF 0x00000020 /* SNAN Flag */
574#define SPR_FPCSR_QNF 0x00000040 /* QNAN Flag */
575#define SPR_FPCSR_ZF 0x00000080 /* Zero Flag */
576#define SPR_FPCSR_IXF 0x00000100 /* Inexact Flag */
577#define SPR_FPCSR_IVF 0x00000200 /* Invalid Flag */
578#define SPR_FPCSR_INF 0x00000400 /* Infinity Flag */
579#define SPR_FPCSR_DZF 0x00000800 /* Divide By Zero Flag */
580#define SPR_FPCSR_ALLF (SPR_FPCSR_OVF | SPR_FPCSR_UNF | SPR_FPCSR_SNF | \
581 SPR_FPCSR_QNF | SPR_FPCSR_ZF | SPR_FPCSR_IXF | \
582 SPR_FPCSR_IVF | SPR_FPCSR_INF | SPR_FPCSR_DZF)
583
584#define FPCSR_RM_RN (0<<1)
585#define FPCSR_RM_RZ (1<<1)
586#define FPCSR_RM_RIP (2<<1)
587#define FPCSR_RM_RIN (3<<1)
588
589/*
590 * l.nop constants
591 *
592 */
593#define NOP_NOP 0x0000 /* Normal nop instruction */
594#define NOP_EXIT 0x0001 /* End of simulation */
595#define NOP_REPORT 0x0002 /* Simple report */
596/*#define NOP_PRINTF 0x0003 Simprintf instruction (obsolete)*/
597#define NOP_PUTC 0x0004 /* JPB: Simputc instruction */
598#define NOP_CNT_RESET 0x0005 /* Reset statistics counters */
599#define NOP_GET_TICKS 0x0006 /* JPB: Get # ticks running */
600#define NOP_GET_PS 0x0007 /* JPB: Get picosecs/cycle */
601#define NOP_REPORT_FIRST 0x0400 /* Report with number */
602#define NOP_REPORT_LAST 0x03ff /* Report with number */
603
604#endif /* SPR_DEFS__H */
diff --git a/arch/openrisc/include/asm/system.h b/arch/openrisc/include/asm/system.h
new file mode 100644
index 000000000000..cf658882186b
--- /dev/null
+++ b/arch/openrisc/include/asm/system.h
@@ -0,0 +1,35 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_SYSTEM_H
20#define __ASM_OPENRISC_SYSTEM_H
21
22#ifdef __KERNEL__
23#ifndef __ASSEMBLY__
24
25#include <asm/spr.h>
26#include <asm-generic/system.h>
27
28/* We probably need this definition, but the generic system.h provides it
29 * and it's not used on our arch anyway...
30 */
31/*#define nop() __asm__ __volatile__ ("l.nop"::)*/
32
33#endif /* __ASSEMBLY__ */
34#endif /* __KERNEL__ */
35#endif /* __ASM_OPENRISC_SYSTEM_H */
diff --git a/arch/openrisc/include/asm/unaligned.h b/arch/openrisc/include/asm/unaligned.h
new file mode 100644
index 000000000000..1141cbd6fd72
--- /dev/null
+++ b/arch/openrisc/include/asm/unaligned.h
@@ -0,0 +1,51 @@
1/*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __ASM_OPENRISC_UNALIGNED_H
20#define __ASM_OPENRISC_UNALIGNED_H
21
22/*
23 * This is copied from the generic implementation and the C-struct
24 * variant replaced with the memmove variant. The GCC compiler
25 * for the OR32 arch optimizes too aggressively for the C-struct
26 * variant to work, so use the memmove variant instead.
27 *
28 * It may be worth considering implementing the unaligned access
29 * exception handler and allowing unaligned accesses (access_ok.h)...
30 * not sure if it would be much of a performance win without further
31 * investigation.
32 */
33#include <asm/byteorder.h>
34
35#if defined(__LITTLE_ENDIAN)
36# include <linux/unaligned/le_memmove.h>
37# include <linux/unaligned/be_byteshift.h>
38# include <linux/unaligned/generic.h>
39# define get_unaligned __get_unaligned_le
40# define put_unaligned __put_unaligned_le
41#elif defined(__BIG_ENDIAN)
42# include <linux/unaligned/be_memmove.h>
43# include <linux/unaligned/le_byteshift.h>
44# include <linux/unaligned/generic.h>
45# define get_unaligned __get_unaligned_be
46# define put_unaligned __put_unaligned_be
47#else
48# error need to define endianess
49#endif
50
51#endif /* __ASM_OPENRISC_UNALIGNED_H */
diff --git a/arch/openrisc/kernel/vmlinux.h b/arch/openrisc/kernel/vmlinux.h
new file mode 100644
index 000000000000..ee842a2d3f36
--- /dev/null
+++ b/arch/openrisc/kernel/vmlinux.h
@@ -0,0 +1,12 @@
1#ifndef __OPENRISC_VMLINUX_H_
2#define __OPENRISC_VMLINUX_H_
3
4extern char _stext, _etext, _edata, _end;
5#ifdef CONFIG_BLK_DEV_INITRD
6extern char __initrd_start, __initrd_end;
7extern char __initramfs_start;
8#endif
9
10extern u32 __dtb_start[];
11
12#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 03:25:22 -0500