From 95bda64fb4cf1825fea745e918cfe8202843f0ba Mon Sep 17 00:00:00 2001
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From: Marek Vasut <marex@denx.de>
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Date: Sat, 30 Jan 2016 07:18:02 +0100
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Subject: [PATCH] Add nios2 support
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Add support for the nios2 CPU.
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Signed-off-by: Marek Vasut <marex@denx.de>
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Upstream-Status: Submitted [ https://bugzilla.mozilla.org/show_bug.cgi?id=1244421 ]
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---
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nspr/pr/include/md/_linux.cfg | 45 +++++++++++++++++++++++++++++++++++++++++++
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nspr/pr/include/md/_linux.h | 14 ++++++++++++++
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2 files changed, 59 insertions(+)
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Index: nspr/pr/include/md/_linux.cfg
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===================================================================
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--- nspr.orig/pr/include/md/_linux.cfg
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+++ nspr/pr/include/md/_linux.cfg
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@@ -975,6 +975,51 @@
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#define PR_BYTES_PER_WORD_LOG2 2
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#define PR_BYTES_PER_DWORD_LOG2 3
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+#elif defined(__nios2__)
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+
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+#define IS_LITTLE_ENDIAN 1
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+#undef IS_BIG_ENDIAN
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+
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+#define PR_BYTES_PER_BYTE 1
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+#define PR_BYTES_PER_SHORT 2
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+#define PR_BYTES_PER_INT 4
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+#define PR_BYTES_PER_INT64 8
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+#define PR_BYTES_PER_LONG 4
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+#define PR_BYTES_PER_FLOAT 4
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+#define PR_BYTES_PER_DOUBLE 8
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+#define PR_BYTES_PER_WORD 4
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+#define PR_BYTES_PER_DWORD 8
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+
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+#define PR_BITS_PER_BYTE 8
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+#define PR_BITS_PER_SHORT 16
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+#define PR_BITS_PER_INT 32
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+#define PR_BITS_PER_INT64 64
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+#define PR_BITS_PER_LONG 32
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+#define PR_BITS_PER_FLOAT 32
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+#define PR_BITS_PER_DOUBLE 64
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+#define PR_BITS_PER_WORD 32
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+
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+#define PR_BITS_PER_BYTE_LOG2 3
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+#define PR_BITS_PER_SHORT_LOG2 4
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+#define PR_BITS_PER_INT_LOG2 5
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+#define PR_BITS_PER_INT64_LOG2 6
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+#define PR_BITS_PER_LONG_LOG2 5
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+#define PR_BITS_PER_FLOAT_LOG2 5
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+#define PR_BITS_PER_DOUBLE_LOG2 6
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+#define PR_BITS_PER_WORD_LOG2 5
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+
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+#define PR_ALIGN_OF_SHORT 2
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+#define PR_ALIGN_OF_INT 4
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+#define PR_ALIGN_OF_LONG 4
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+#define PR_ALIGN_OF_INT64 4
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+#define PR_ALIGN_OF_FLOAT 4
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+#define PR_ALIGN_OF_DOUBLE 4
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+#define PR_ALIGN_OF_POINTER 4
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+#define PR_ALIGN_OF_WORD 4
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+
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+#define PR_BYTES_PER_WORD_LOG2 2
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+#define PR_BYTES_PER_DWORD_LOG2 3
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+
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#elif defined(__or1k__)
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#undef IS_LITTLE_ENDIAN
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Index: nspr/pr/include/md/_linux.h
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===================================================================
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--- nspr.orig/pr/include/md/_linux.h
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+++ nspr/pr/include/md/_linux.h
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@@ -55,6 +55,8 @@
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#define _PR_SI_ARCHITECTURE "avr32"
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#elif defined(__m32r__)
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#define _PR_SI_ARCHITECTURE "m32r"
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+#elif defined(__nios2__)
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+#define _PR_SI_ARCHITECTURE "nios2"
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#elif defined(__or1k__)
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#define _PR_SI_ARCHITECTURE "or1k"
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#elif defined(__riscv) && (__riscv_xlen == 32)
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@@ -129,6 +131,18 @@ extern PRInt32 _PR_x86_64_AtomicSet(PRIn
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#define _MD_ATOMIC_SET _PR_x86_64_AtomicSet
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#endif
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+#if defined(__nios2__)
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+#if defined(__GNUC__)
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+/* Use GCC built-in functions */
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+#define _PR_HAVE_ATOMIC_OPS
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+#define _MD_INIT_ATOMIC()
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+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
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+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
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+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
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+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
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+#endif
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+#endif
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+
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#if defined(__or1k__)
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#if defined(__GNUC__)
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/* Use GCC built-in functions */
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