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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-12 19:53:16 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-12 19:53:16 +0300
commit0ba1c1950c320fcfdfe3dbc7470884e4a390083c (patch)
treedf52579dd94c0d895329193d9896cc02a92235ab /arch/nios2/include
parent09d79d103371b1b7ea70ea7f9c05ac207ef22f5d (diff)
parente118c3fec9c0d8d2a96462c4c035305dc952e402 (diff)
downloadlinux-0ba1c1950c320fcfdfe3dbc7470884e4a390083c.tar.xz
Merge tag 'nios2-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2
Pull nios2 updates from Ley Foon Tan: "nios2 fixes/enhancements and adding nios2 R2 support" * tag 'nios2-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2: nios2: remove custom early console implementation nios2: use generic strncpy_from_user() and strnlen_user() nios2: Add CDX support nios2: Add BMX support nios2: Add NIOS2_ARCH_REVISION to select between R1 and R2 nios2: implement flush_dcache_mmap_lock/unlock nios2: enable earlycon support nios2: constify irq_domain_ops nios2: remove wrapper header for cmpxchg.h nios2: add .gitignore entries for auto-generated files
Diffstat (limited to 'arch/nios2/include')
-rw-r--r--arch/nios2/include/asm/Kbuild1
-rw-r--r--arch/nios2/include/asm/cacheflush.h6
-rw-r--r--arch/nios2/include/asm/cmpxchg.h14
-rw-r--r--arch/nios2/include/asm/cpuinfo.h2
-rw-r--r--arch/nios2/include/asm/prom.h22
-rw-r--r--arch/nios2/include/asm/setup.h2
-rw-r--r--arch/nios2/include/asm/uaccess.h7
7 files changed, 12 insertions, 42 deletions
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index 87e70f2b463f..727dbb333f60 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -6,6 +6,7 @@ generic-y += bitsperlong.h
generic-y += bug.h
generic-y += bugs.h
generic-y += clkdev.h
+generic-y += cmpxchg.h
generic-y += current.h
generic-y += device.h
generic-y += div64.h
diff --git a/arch/nios2/include/asm/cacheflush.h b/arch/nios2/include/asm/cacheflush.h
index 52abba973dc2..55e383c173f7 100644
--- a/arch/nios2/include/asm/cacheflush.h
+++ b/arch/nios2/include/asm/cacheflush.h
@@ -46,7 +46,9 @@ extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
extern void flush_dcache_range(unsigned long start, unsigned long end);
extern void invalidate_dcache_range(unsigned long start, unsigned long end);
-#define flush_dcache_mmap_lock(mapping) do { } while (0)
-#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+#define flush_dcache_mmap_lock(mapping) \
+ spin_lock_irq(&(mapping)->tree_lock)
+#define flush_dcache_mmap_unlock(mapping) \
+ spin_unlock_irq(&(mapping)->tree_lock)
#endif /* _ASM_NIOS2_CACHEFLUSH_H */
diff --git a/arch/nios2/include/asm/cmpxchg.h b/arch/nios2/include/asm/cmpxchg.h
deleted file mode 100644
index a7978f14d157..000000000000
--- a/arch/nios2/include/asm/cmpxchg.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (C) 2004 Microtronix Datacom Ltd.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#ifndef _ASM_NIOS2_CMPXCHG_H
-#define _ASM_NIOS2_CMPXCHG_H
-
-#include <asm-generic/cmpxchg.h>
-
-#endif /* _ASM_NIOS2_CMPXCHG_H */
diff --git a/arch/nios2/include/asm/cpuinfo.h b/arch/nios2/include/asm/cpuinfo.h
index 348bb228fec9..dbdaf96f28d4 100644
--- a/arch/nios2/include/asm/cpuinfo.h
+++ b/arch/nios2/include/asm/cpuinfo.h
@@ -29,6 +29,8 @@ struct cpuinfo {
bool has_div;
bool has_mul;
bool has_mulx;
+ bool has_bmx;
+ bool has_cdx;
/* CPU caches */
u32 icache_line_size;
diff --git a/arch/nios2/include/asm/prom.h b/arch/nios2/include/asm/prom.h
deleted file mode 100644
index 75fffb42cfa5..000000000000
--- a/arch/nios2/include/asm/prom.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright Altera Corporation (C) <2015>. All rights reserved
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __ASM_NIOS2_PROM_H__
-#define __ASM_NIOS2_PROM_H__
-
-extern unsigned long __init of_early_console(void);
-
-#endif
diff --git a/arch/nios2/include/asm/setup.h b/arch/nios2/include/asm/setup.h
index dcbf8cf1a344..ac9bff248e6d 100644
--- a/arch/nios2/include/asm/setup.h
+++ b/arch/nios2/include/asm/setup.h
@@ -30,8 +30,6 @@ extern char fast_handler_end[];
extern void pagetable_init(void);
-extern void setup_early_printk(void);
-
#endif/* __KERNEL__ */
#endif /* __ASSEMBLY__ */
diff --git a/arch/nios2/include/asm/uaccess.h b/arch/nios2/include/asm/uaccess.h
index 727bd9504899..dfa3c7cb30b4 100644
--- a/arch/nios2/include/asm/uaccess.h
+++ b/arch/nios2/include/asm/uaccess.h
@@ -42,6 +42,8 @@
# define __EX_TABLE_SECTION ".section __ex_table,\"a\"\n"
+#define user_addr_max() (uaccess_kernel() ? ~0UL : TASK_SIZE)
+
/*
* Zero Userspace
*/
@@ -81,8 +83,9 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n);
#define INLINE_COPY_TO_USER
extern long strncpy_from_user(char *__to, const char __user *__from,
- long __len);
-extern long strnlen_user(const char __user *s, long n);
+ long __len);
+extern __must_check long strlen_user(const char __user *str);
+extern __must_check long strnlen_user(const char __user *s, long n);
/* Optimized macros */
#define __get_user_asm(val, insn, addr, err) \