Changeset 7328ff4 in mainline for kernel/arch/abs32le

Timestamp:

2018-09-06T18:18:52Z (7 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ffa73c6

Parents:

d51cca8

git-author:

Jiří Zárevúcky <jiri.zarevucky@…> (2018-08-13 01:29:17)

git-committer:

Jiří Zárevúcky <jiri.zarevucky@…> (2018-09-06 18:18:52)

Message:

Use builtin memory fences for kernel barriers, and convert smp_coherence() into a regular function

Location:

kernel/arch/abs32le

Files:

• Makefile.inc (modified) (1 diff)
• src/smc.c (moved) (moved from kernel/arch/riscv64/include/arch/barrier.h ) (2 diffs)

kernel/arch/abs32le/Makefile.inc

@@ -49 +49 @@
         arch/$(KARCH)/src/abs32le.c \
         arch/$(KARCH)/src/userspace.c \
+        arch/$(KARCH)/src/smc.c \
         arch/$(KARCH)/src/cpu/cpu.c \
         arch/$(KARCH)/src/smp/smp.c \

kernel/arch/abs32le/src/smc.c

@@ -1 +1 @@
 /*
- * Copyright (c) 2016 Martin Decky
+ * Copyright (c) 2005 Jakub Jermar
  * All rights reserved.
  *
@@ -27 +27 @@
  */
 
-/** @addtogroup riscv64
- * @{
- */
-/** @file
- */
+#include <barrier.h>
 
-#ifndef KERN_riscv64_BARRIER_H_
-#define KERN_riscv64_BARRIER_H_
+void smc_coherence(void *a, size_t l)
+{
+        compiler_barrier();
+}
 
-#include <trace.h>
-
-// FIXME
-
-#define CS_ENTER_BARRIER()  asm volatile ("" ::: "memory")
-#define CS_LEAVE_BARRIER()  asm volatile ("" ::: "memory")
-
-#define memory_barrier()  asm volatile ("" ::: "memory")
-#define read_barrier()    asm volatile ("" ::: "memory")
-#define write_barrier()   asm volatile ("" ::: "memory")
-
-#ifdef KERNEL
-
-#define smc_coherence(addr, size)
-
-#endif /* KERNEL */
-
-#endif
-
-/** @}
- */