Changeset 7328ff4 in mainline for kernel/arch/ia64/src

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/ia64/src

Files:

• mm/vhpt.c (modified) (1 diff)
• smc.c (moved) (moved from kernel/arch/abs32le/include/arch/barrier.h ) (1 diff)

kernel/arch/ia64/src/mm/vhpt.c

@@ -34 +34 @@
 
 #include <mem.h>
+#include <arch/barrier.h>
 #include <arch/mm/vhpt.h>
 #include <mm/frame.h>

kernel/arch/ia64/src/smc.c

@@ -27 +27 @@
  */
 
-/** @addtogroup abs32le
- * @{
- */
-/** @file
- */
+#include <barrier.h>
+#include <arch/barrier.h>
 
-#ifndef KERN_abs32le_BARRIER_H_
-#define KERN_abs32le_BARRIER_H_
+#define FC_INVAL_MIN            32
 
-/*
- * Provisions are made to prevent compiler from reordering instructions itself.
- */
+void smc_coherence(void *a, size_t l)
+{
+        unsigned long i;
+        for (i = 0; i < (l); i += FC_INVAL_MIN)
+                fc_i(a + i);
+        sync_i();
+        srlz_i();
+}
 
-#define CS_ENTER_BARRIER()
-#define CS_LEAVE_BARRIER()
-
-#define memory_barrier()
-#define read_barrier()
-#define write_barrier()
-
-#ifdef KERNEL
-
-#define smc_coherence(addr, size)
-
-#endif  /* KERNEL*/
-
-#endif
-
-/** @}
- */