summaryrefslogtreecommitdiff
path: root/arch/hexagon/kernel/vm_ops.S
diff options
context:
space:
mode:
authorRichard Kuo <rkuo@codeaurora.org>2011-10-31 18:39:14 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 07:34:19 -0700
commite49ee2906c94cd6a339b2012c23e39d1a39f79e3 (patch)
tree7680d806aa375de5a54e1ee72541bdff7c4201c6 /arch/hexagon/kernel/vm_ops.S
parentc150290df4f97d202d0913ff9cb0898032a803d7 (diff)
Hexagon: Add hypervisor interface
Signed-off-by: Richard Kuo <rkuo@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/hexagon/kernel/vm_ops.S')
-rw-r--r--arch/hexagon/kernel/vm_ops.S102
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/hexagon/kernel/vm_ops.S b/arch/hexagon/kernel/vm_ops.S
new file mode 100644
index 000000000000..24d7fcac4ff2
--- /dev/null
+++ b/arch/hexagon/kernel/vm_ops.S
@@ -0,0 +1,102 @@
+/*
+ * Hexagon VM instruction support
+ *
+ * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <linux/linkage.h>
+#include <asm/hexagon_vm.h>
+
+/*
+ * C wrappers for virtual machine "instructions". These
+ * could be, and perhaps some day will be, handled as in-line
+ * macros, but for tracing/debugging it's handy to have
+ * a single point of invocation for each of them.
+ * Conveniently, they take paramters and return values
+ * consistent with the ABI calling convention.
+ */
+
+ENTRY(__vmrte)
+ trap1(#HVM_TRAP1_VMRTE);
+ jumpr R31;
+
+ENTRY(__vmsetvec)
+ trap1(#HVM_TRAP1_VMSETVEC);
+ jumpr R31;
+
+ENTRY(__vmsetie)
+ trap1(#HVM_TRAP1_VMSETIE);
+ jumpr R31;
+
+ENTRY(__vmgetie)
+ trap1(#HVM_TRAP1_VMGETIE);
+ jumpr R31;
+
+ENTRY(__vmintop)
+ trap1(#HVM_TRAP1_VMINTOP);
+ jumpr R31;
+
+ENTRY(__vmclrmap)
+ trap1(#HVM_TRAP1_VMCLRMAP);
+ jumpr R31;
+
+ENTRY(__vmnewmap)
+ r1 = #VM_NEWMAP_TYPE_PGTABLES;
+ trap1(#HVM_TRAP1_VMNEWMAP);
+ jumpr R31;
+
+ENTRY(__vmcache)
+ trap1(#HVM_TRAP1_VMCACHE);
+ jumpr R31;
+
+ENTRY(__vmgettime)
+ trap1(#HVM_TRAP1_VMGETTIME);
+ jumpr R31;
+
+ENTRY(__vmsettime)
+ trap1(#HVM_TRAP1_VMSETTIME);
+ jumpr R31;
+
+ENTRY(__vmwait)
+ trap1(#HVM_TRAP1_VMWAIT);
+ jumpr R31;
+
+ENTRY(__vmyield)
+ trap1(#HVM_TRAP1_VMYIELD);
+ jumpr R31;
+
+ENTRY(__vmstart)
+ trap1(#HVM_TRAP1_VMSTART);
+ jumpr R31;
+
+ENTRY(__vmstop)
+ trap1(#HVM_TRAP1_VMSTOP);
+ jumpr R31;
+
+ENTRY(__vmvpid)
+ trap1(#HVM_TRAP1_VMVPID);
+ jumpr R31;
+
+/* Probably not actually going to use these; see vm_entry.S */
+
+ENTRY(__vmsetregs)
+ trap1(#HVM_TRAP1_VMSETREGS);
+ jumpr R31;
+
+ENTRY(__vmgetregs)
+ trap1(#HVM_TRAP1_VMGETREGS);
+ jumpr R31;