arm/acpi: add arm specific acpi header file

From: Shannon Zhao <shannon.zhao@linaro.org>

Add architecture specific definitions and calls required for acpi in new
header file.

Signed-off-by: Parth Dixit <parth.dixit@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index e95759d4e24ee98b9af44fe28f91d67980d1c5c0..e6b689e2d2ea4443f929b0d803e86d84a85ccb9c 100644 (file)
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -45,11 +45,16 @@
 #include <asm/procinfo.h>
 #include <asm/setup.h>
 #include <xsm/xsm.h>
+#include <asm/acpi.h>
 
 struct bootinfo __initdata bootinfo;
 
 struct cpuinfo_arm __read_mostly boot_cpu_data;
 
+#ifdef CONFIG_ACPI
+bool_t __read_mostly acpi_disabled;
+#endif
+
 #ifdef CONFIG_ARM_32
 static unsigned long opt_xenheap_megabytes __initdata;
 integer_param("xenheap_megabytes", opt_xenheap_megabytes);

diff --git a/xen/include/asm-arm/acpi.h b/xen/include/asm-arm/acpi.h
new file mode 100644 (file)
index 0000000..10e02bd
--- /dev/null
+++ b/xen/include/asm-arm/acpi.h
@@ -0,0 +1,51 @@
+/*
+ *  Copyright (C) 2015, Shannon Zhao <shannon.zhao@linaro.org>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#ifndef _ASM_ARM_ACPI_H
+#define _ASM_ARM_ACPI_H
+
+#include <xen/init.h>
+#include <asm/page.h>
+
+#define COMPILER_DEPENDENT_INT64   long long
+#define COMPILER_DEPENDENT_UINT64  unsigned long long
+#define ACPI_MAP_MEM_ATTR          PAGE_HYPERVISOR
+
+#ifdef CONFIG_ACPI
+extern bool_t acpi_disabled;
+/* Basic configuration for ACPI */
+static inline void disable_acpi(void)
+{
+    acpi_disabled = 1;
+}
+
+static inline void enable_acpi(void)
+{
+    acpi_disabled = 0;
+}
+#else
+#define acpi_disabled (1)
+#define disable_acpi()
+#define enable_acpi()
+#endif
+
+#endif /*_ASM_ARM_ACPI_H*/