1From 95bda64fb4cf1825fea745e918cfe8202843f0ba Mon Sep 17 00:00:00 2001
2From: Marek Vasut <marex@denx.de>
3Date: Sat, 30 Jan 2016 07:18:02 +0100
4Subject: [PATCH] Add nios2 support
5
6Add support for the nios2 CPU.
7
8Signed-off-by: Marek Vasut <marex@denx.de>
9Upstream-Status: Submitted [ https://bugzilla.mozilla.org/show_bug.cgi?id=1244421 ]
10---
11 nspr/pr/include/md/_linux.cfg | 45 +++++++++++++++++++++++++++++++++++++++++++
12 nspr/pr/include/md/_linux.h   | 14 ++++++++++++++
13 2 files changed, 59 insertions(+)
14
15Index: nspr/pr/include/md/_linux.cfg
16===================================================================
17--- nspr.orig/pr/include/md/_linux.cfg
18+++ nspr/pr/include/md/_linux.cfg
19@@ -975,6 +975,51 @@
20 #define PR_BYTES_PER_WORD_LOG2   2
21 #define PR_BYTES_PER_DWORD_LOG2  3
22
23+#elif defined(__nios2__)
24+
25+#define IS_LITTLE_ENDIAN    1
26+#undef  IS_BIG_ENDIAN
27+
28+#define PR_BYTES_PER_BYTE   1
29+#define PR_BYTES_PER_SHORT  2
30+#define PR_BYTES_PER_INT    4
31+#define PR_BYTES_PER_INT64  8
32+#define PR_BYTES_PER_LONG   4
33+#define PR_BYTES_PER_FLOAT  4
34+#define PR_BYTES_PER_DOUBLE 8
35+#define PR_BYTES_PER_WORD   4
36+#define PR_BYTES_PER_DWORD  8
37+
38+#define PR_BITS_PER_BYTE    8
39+#define PR_BITS_PER_SHORT   16
40+#define PR_BITS_PER_INT     32
41+#define PR_BITS_PER_INT64   64
42+#define PR_BITS_PER_LONG    32
43+#define PR_BITS_PER_FLOAT   32
44+#define PR_BITS_PER_DOUBLE  64
45+#define PR_BITS_PER_WORD    32
46+
47+#define PR_BITS_PER_BYTE_LOG2   3
48+#define PR_BITS_PER_SHORT_LOG2  4
49+#define PR_BITS_PER_INT_LOG2    5
50+#define PR_BITS_PER_INT64_LOG2  6
51+#define PR_BITS_PER_LONG_LOG2   5
52+#define PR_BITS_PER_FLOAT_LOG2  5
53+#define PR_BITS_PER_DOUBLE_LOG2 6
54+#define PR_BITS_PER_WORD_LOG2   5
55+
56+#define PR_ALIGN_OF_SHORT   2
57+#define PR_ALIGN_OF_INT     4
58+#define PR_ALIGN_OF_LONG    4
59+#define PR_ALIGN_OF_INT64   4
60+#define PR_ALIGN_OF_FLOAT   4
61+#define PR_ALIGN_OF_DOUBLE  4
62+#define PR_ALIGN_OF_POINTER 4
63+#define PR_ALIGN_OF_WORD    4
64+
65+#define PR_BYTES_PER_WORD_LOG2   2
66+#define PR_BYTES_PER_DWORD_LOG2  3
67+
68 #elif defined(__or1k__)
69
70 #undef  IS_LITTLE_ENDIAN
71Index: nspr/pr/include/md/_linux.h
72===================================================================
73--- nspr.orig/pr/include/md/_linux.h
74+++ nspr/pr/include/md/_linux.h
75@@ -55,6 +55,8 @@
76 #define _PR_SI_ARCHITECTURE "avr32"
77 #elif defined(__m32r__)
78 #define _PR_SI_ARCHITECTURE "m32r"
79+#elif defined(__nios2__)
80+#define _PR_SI_ARCHITECTURE "nios2"
81 #elif defined(__or1k__)
82 #define _PR_SI_ARCHITECTURE "or1k"
83 #elif defined(__riscv) && (__riscv_xlen == 32)
84@@ -129,6 +131,18 @@ extern PRInt32 _PR_x86_64_AtomicSet(PRIn
85 #define _MD_ATOMIC_SET                _PR_x86_64_AtomicSet
86 #endif
87
88+#if defined(__nios2__)
89+#if defined(__GNUC__)
90+/* Use GCC built-in functions */
91+#define _PR_HAVE_ATOMIC_OPS
92+#define _MD_INIT_ATOMIC()
93+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
94+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
95+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
96+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
97+#endif
98+#endif
99+
100 #if defined(__or1k__)
101 #if defined(__GNUC__)
102 /* Use GCC built-in functions */
103