Add support for sparc pause instruction.

opcodes/

	* sparc-opc.c (sparc_opcodes): Add 'wr X, %pause' and 'pause'.
	* sparc-dis.c (v9a_asr_reg_names): Add 'pause'.

gas/

	* config/tc-sparc.c (sparc_arch_table): Add HWCAP_PAUSE to sparc4,
	v8pluse, v8plusv, v9e, and v9v.
	(v9a_asr_table): Add 'pause'.

gas/testsuite/

	* gas/sparc/sparc.exp: Run pause test.
	* gas/sparc/pause.s: New testcase.
	* gas/sparc/pause.d: Likewise.

9 files changed, 44 insertions, 6 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index ca23ecb..ba54046 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,9 @@
 2012-04-27  David S. Miller  <davem@davemloft.net>
 
+	* config/tc-sparc.c (sparc_arch_table): Add HWCAP_PAUSE to sparc4,
+	v8pluse, v8plusv, v9e, and v9v.
+	(v9a_asr_table): Add 'pause'.
+
 	* config/tc-sparc.c (sparc_arch_table): Add HWCAP_CBCOND to
 	sparc4, v8pluse, v8plusv, v9e, and v9v.
 	(sparc_ip): Handle R_SPARC_5 of immediate constants inline in
diff --git a/gas/config/tc-sparc.c b/gas/config/tc-sparc.c
index 3e95357..e8de372 100644
--- a/gas/config/tc-sparc.c
+++ b/gas/config/tc-sparc.c
@@ -245,7 +245,7 @@ static struct sparc_arch {
   { "sparcfmaf", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_FMAF },
   { "sparcima", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_FMAF|HWCAP_IMA },
   { "sparcvis3", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC },
-  { "sparc4", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND },
+  { "sparc4", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND|HWCAP_PAUSE },
   { "sparcvis3r", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU },
   { "sparclet", "sparclet", sparclet, 32, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD },
   { "sparclite", "sparclite", sparclite, 32, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD },
@@ -255,15 +255,15 @@ static struct sparc_arch {
   { "v8plusb", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2 },
   { "v8plusc", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT },
   { "v8plusd", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC },
-  { "v8pluse", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND },
-  { "v8plusv", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU|HWCAP_IMA|HWCAP_ASI_CACHE_SPARING|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND },
+  { "v8pluse", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND|HWCAP_PAUSE },
+  { "v8plusv", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_V8PLUS|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU|HWCAP_IMA|HWCAP_ASI_CACHE_SPARING|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND|HWCAP_PAUSE },
   { "v9", "v9", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC },
   { "v9a", "v9a", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS },
   { "v9b", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2 },
   { "v9c", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT },
   { "v9d", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC },
-  { "v9e", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND },
-  { "v9v", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU|HWCAP_IMA|HWCAP_ASI_CACHE_SPARING|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND },
+  { "v9e", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND|HWCAP_PAUSE },
+  { "v9v", "v9b", v9, 0, 1, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC|HWCAP_VIS|HWCAP_VIS2|HWCAP_ASI_BLK_INIT|HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_RANDOM|HWCAP_TRANS|HWCAP_FJFMAU|HWCAP_IMA|HWCAP_ASI_CACHE_SPARING|HWCAP_AES|HWCAP_DES|HWCAP_KASUMI|HWCAP_CAMELLIA|HWCAP_MD5|HWCAP_SHA1|HWCAP_SHA256|HWCAP_SHA512|HWCAP_MPMUL|HWCAP_MONT|HWCAP_CRC32C|HWCAP_CBCOND|HWCAP_PAUSE },
   /* This exists to allow configure.in/Makefile.in to pass one
      value to specify both the default machine and default word size.  */
   { "v9-64", "v9", v9, 64, 0, HWCAP_MUL32|HWCAP_DIV32|HWCAP_FSMULD|HWCAP_POPC },
@@ -799,6 +799,7 @@ struct priv_reg_entry v9a_asr_table[] =
   {"softint_set", 20},
   {"softint", 22},
   {"set_softint", 20},
+  {"pause", 27},
   {"pic", 17},
   {"pcr", 16},
   {"gsr", 19},
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 478a4de..111476f 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2012-04-27  David S. Miller  <davem@davemloft.net>
 
+	* gas/sparc/sparc.exp: Run pause test.
+	* gas/sparc/pause.s: New testcase.
+	* gas/sparc/pause.d: Likewise.
+
 	* gas/sparc/cbcond.s: New file.
 	* gas/sparc/cbcond.d: New file.
 	* gas/sparc/sparc.exp: Run cbcond test.
diff --git a/gas/testsuite/gas/sparc/pause.d b/gas/testsuite/gas/sparc/pause.d
new file mode 100644
index 0000000..50444e4
--- /dev/null
+++ b/gas/testsuite/gas/sparc/pause.d
@@ -0,0 +1,14 @@
+#as: -Av9v
+#objdump: -dr
+#name: sparc PAUSE
+
+.*: +file format .*sparc.*
+
+Disassembly of section .text:
+
+0+ <.text>:
+   0:	b7 80 40 02 	wr  %g1, %g2, %pause
+   4:	b7 83 22 34 	wr  %o4, 0x234, %pause
+   8:	b7 80 20 08 	pause  8
+   c:	b7 80 21 2c 	pause  0x12c
+  10:	b7 80 22 34 	pause  0x234
diff --git a/gas/testsuite/gas/sparc/pause.s b/gas/testsuite/gas/sparc/pause.s
new file mode 100644
index 0000000..029f938
--- /dev/null
+++ b/gas/testsuite/gas/sparc/pause.s
@@ -0,0 +1,7 @@
+# Test PAUSE instruction
+	.text
+	wr	%g1, %g2, %pause
+	wr	%o4, 0x234, %pause
+	pause	8
+	pause	300
+	pause	0x234
diff --git a/gas/testsuite/gas/sparc/sparc.exp b/gas/testsuite/gas/sparc/sparc.exp
index e164212..21a84a7 100644
--- a/gas/testsuite/gas/sparc/sparc.exp
+++ b/gas/testsuite/gas/sparc/sparc.exp
@@ -64,6 +64,7 @@ if [istarget sparc*-*-*] {
     run_dump_test "ima"
     run_dump_test "crypto"
     run_dump_test "cbcond"
+    run_dump_test "pause"
 
     run_list_test "pr4587" ""
 }
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index c20461b..43f4a9d 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,5 +1,8 @@
 2012-04-27  David S. Miller  <davem@davemloft.net>
 
+	* sparc-opc.c (sparc_opcodes): Add 'wr X, %pause' and 'pause'.
+	* sparc-dis.c (v9a_asr_reg_names): Add 'pause'.
+
 	* sparc-opc.c (CBCOND): New define.
 	(CBCOND_XCC): Likewise.
 	(cbcond): New helper macro.
diff --git a/opcodes/sparc-dis.c b/opcodes/sparc-dis.c
index bda1b0d..7599f89 100644
--- a/opcodes/sparc-dis.c
+++ b/opcodes/sparc-dis.c
@@ -109,7 +109,7 @@ static char *v9a_asr_reg_names[] =
 {
   "pcr", "pic", "dcr", "gsr", "set_softint", "clear_softint",
   "softint", "tick_cmpr", "stick", "stick_cmpr", "resv26",
-  "resv27", "cps"
+  "pause", "cps"
 };
 
 /* Macros used to extract instruction fields.  Not all fields have
diff --git a/opcodes/sparc-opc.c b/opcodes/sparc-opc.c
index d83b49d..1f9ee49 100644
--- a/opcodes/sparc-opc.c
+++ b/opcodes/sparc-opc.c
@@ -876,9 +876,13 @@ const struct sparc_opcode sparc_opcodes[] = {
 { "wr", F3(2, 0x30, 1)|RD(24),	F3(~2, ~0x30, ~1)|RD(~24),		"1,i,_", HWCAP_VIS2, 0, v9b }, /* wr r,i,%sys_tick */
 { "wr", F3(2, 0x30, 0)|RD(25),	F3(~2, ~0x30, ~0)|RD(~25)|ASI(~0),	"1,2,_", HWCAP_VIS2, 0, v9b }, /* wr r,r,%sys_tick_cmpr */
 { "wr", F3(2, 0x30, 1)|RD(25),	F3(~2, ~0x30, ~1)|RD(~25),		"1,i,_", HWCAP_VIS2, 0, v9b }, /* wr r,i,%sys_tick_cmpr */
+{ "wr", F3(2, 0x30, 0)|RD(27),	F3(~2, ~0x30, ~0)|RD(~27)|ASI(~0),	"1,2,_", 0, HWCAP_PAUSE, v9b }, /* wr r,r,%pause */
+{ "wr", F3(2, 0x30, 1)|RD(27),	F3(~2, ~0x30, ~1)|RD(~27),		"1,i,_", 0, HWCAP_PAUSE, v9b }, /* wr r,i,%pause */
 { "wr", F3(2, 0x30, 0)|RD(28),	F3(~2, ~0x30, ~0)|RD(~28)|ASI(~0),	"1,2,_", 0, HWCAP_VIS3, v9b }, /* wr r,r,%cps */
 { "wr", F3(2, 0x30, 1)|RD(28),	F3(~2, ~0x30, ~1)|RD(~28),		"1,i,_", 0, HWCAP_VIS3, v9b }, /* wr r,i,%cps */
 
+{ "pause", F3(2, 0x30, 1)|RD(27)|RS1(0), F3(~2, ~0x30, ~1)|RD(~27)|RS1(~0), "i", 0, HWCAP_PAUSE, v9b }, /* wr %g0,i,%pause */
+
 { "rd",	F3(2, 0x28, 0),			F3(~2, ~0x28, ~0)|SIMM13(~0),		"M,d", 0, 0, v8 }, /* rd %asrX,r */
 { "rd",	F3(2, 0x28, 0),			F3(~2, ~0x28, ~0)|RS1_G0|SIMM13(~0),	"y,d", 0, 0, v6 }, /* rd %y,r */
 { "rd",	F3(2, 0x29, 0),			F3(~2, ~0x29, ~0)|RS1_G0|SIMM13(~0),	"p,d", 0, 0, v6notv9 }, /* rd %psr,r */