From: Walter Lee <walt@tilera.com>
Date: Tue, 28 Jun 2016 16:20:58 +0000 (+0000)
Subject: linux.h: Do not include arch/icache.h
X-Git-Tag: upstream/12.2.0~46154
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ba6be749f94e6033b8b5bcc23939b7b2f68b7c3f;p=platform%2Fupstream%2Fgcc.git

linux.h: Do not include arch/icache.h

gcc/ChangeLog
	* config/tilegx/linux.h: Do not include arch/icache.h
	(CLEAR_INSN_CACHE): Provide inlined definition directly.
	* config/tilepro/linux.h: Do not include arch/icache.h
	(CLEAR_INSN_CACHE): Provide inlined definition directly.

libgcc/ChangeLog
	* config/tilepro/atomic.h: Do not include arch/spr_def.h and
	asm/unistd.h.
	(SPR_CMPEXCH_VALUE): Define for tilegx.
	(__NR_FAST_cmpxchg): Define for tilepro.
	(__NR_FAST_atomic_update): Define for tilepro.
	(__NR_FAST_cmpxchg64): Define for tilepro.

From-SVN: r237824
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d9d41ad..cc515b7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2016-06-28  Walter Lee  <walt@tilera.com>
+
+	* config/tilegx/linux.h: Do not include arch/icache.h
+	(CLEAR_INSN_CACHE): Provide inlined definition directly.
+	* config/tilepro/linux.h: Do not include arch/icache.h
+	(CLEAR_INSN_CACHE): Provide inlined definition directly.
+
 2016-06-28  Wilco Dijkstra  <wdijkstr@arm.com>
 
 	* tree-ssa-math-opts.c (find_bswap_or_nop_1): Adjust bitnumbering
diff --git a/gcc/config/tilegx/linux.h b/gcc/config/tilegx/linux.h
index f68b044..8ed3d02 100644
--- a/gcc/config/tilegx/linux.h
+++ b/gcc/config/tilegx/linux.h
@@ -55,12 +55,23 @@
 /* For __clear_cache in libgcc2.c.  */
 #ifdef IN_LIBGCC2
 
-#include <arch/icache.h>
-
 /* Use the minimum page size of 4K.  Alternatively we can call
-   getpagesize() but it introduces a libc dependence.  */
+   getpagesize() but it introduces a libc dependence.
+   See Linux arch/tile/include/uapi/arch/icache.h for more commentary.  */
 #undef CLEAR_INSN_CACHE
-#define CLEAR_INSN_CACHE(beg, end) invalidate_icache (beg, end - beg, 4096)
+#define CLEAR_INSN_CACHE(BEG, END)                                      \
+{                                                                       \
+  long size = (long) (END) - (long) (BEG);                              \
+  if (size)                                                             \
+    {                                                                   \
+      const char *p = (const char *) ((unsigned long) (BEG) & -64L);    \
+      const char *end = p + (size < 4096 ? size : 4096) - 1;            \
+      __insn_mf ();                                                     \
+      for (; p <= end; p += 64)                                         \
+        __insn_icoh (p);                                                \
+      __insn_drain ();                                                  \
+    }                                                                   \
+}
 
 #else
 
diff --git a/gcc/config/tilepro/linux.h b/gcc/config/tilepro/linux.h
index c7791f9..ebe15f4 100644
--- a/gcc/config/tilepro/linux.h
+++ b/gcc/config/tilepro/linux.h
@@ -47,12 +47,31 @@
 /* For __clear_cache in libgcc2.c.  */
 #ifdef IN_LIBGCC2
 
-#include <arch/icache.h>
-
-/* Use the minimum page size of 4K.  Alternatively we can call getpagesize()
-   but it introduces a libc dependence.  */
+/* Use the minimum page size of 4K.  Alternatively we can call
+   getpagesize() but it introduces a libc dependence.
+   See Linux arch/tile/include/uapi/arch/icache.h for more commentary.  */
 #undef CLEAR_INSN_CACHE
-#define CLEAR_INSN_CACHE(beg, end) invalidate_icache (beg, end - beg, 4096)
+#define CLEAR_INSN_CACHE(BEG, END)                                      \
+{                                                                       \
+  long size = (long) (END) - (long) (BEG);                              \
+  if (size)                                                             \
+    {                                                                   \
+      const char *start = (const char *) ((unsigned long) (BEG) & -64L);\
+      const char *end =  start + (size < 16384 ? size : 16384) - 1;     \
+      long num_passes = 4;                                              \
+      __insn_mf ();                                                     \
+      do                                                                \
+      {                                                                 \
+        const char *p;                                                  \
+        for (p = start; p <= end; p += 64)                              \
+          __insn_icoh (p);                                              \
+        start += 4096;                                                  \
+        end += 4096;                                                    \
+      }                                                                 \
+      while (--num_passes > 0);                                         \
+      __insn_drain ();                                                  \
+    }                                                                   \
+}
 
 #else
 
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index db5616a..8f758e3 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,12 @@
+2016-06-28  Walter Lee  <walt@tilera.com>
+
+	* config/tilepro/atomic.h: Do not include arch/spr_def.h and
+	asm/unistd.h.
+	(SPR_CMPEXCH_VALUE): Define for tilegx.
+	(__NR_FAST_cmpxchg): Define for tilepro.
+	(__NR_FAST_atomic_update): Define for tilepro.
+	(__NR_FAST_cmpxchg64): Define for tilepro.
+
 2016-06-23  Jakub Sejdak  <jakub.sejdak@phoesys.com>
 
    * config.host: Add suport for arm*-*-phoenix* targets.
diff --git a/libgcc/config/tilepro/atomic.h b/libgcc/config/tilepro/atomic.h
index 78fa9a9..6abe6e1 100644
--- a/libgcc/config/tilepro/atomic.h
+++ b/libgcc/config/tilepro/atomic.h
@@ -93,9 +93,11 @@
 #endif
 
 #ifdef __tilegx__
-#include <arch/spr_def.h>
+#define SPR_CMPEXCH_VALUE 0x2780
 #else
-#include <asm/unistd.h>
+#define __NR_FAST_cmpxchg	-1
+#define __NR_FAST_atomic_update	-2
+#define __NR_FAST_cmpxchg64	-3
 #endif