acpica: Add acgnuex.h extra configuration for GNU target

2 files changed, 81 insertions, 0 deletions

diff --git a/acpica/src/include/acpi/platform/acenvex.h b/acpica/src/include/acpi/platform/acenvex.h
index c3facf5f..b0cbc5bf 100644
--- a/acpica/src/include/acpi/platform/acenvex.h
+++ b/acpica/src/include/acpi/platform/acenvex.h
@@ -25,6 +25,9 @@
 #elif defined(__DragonFly__)
 #include "acdragonflyex.h"
 
+#elif defined(__GNU__)
+#include "acgnuex.h"
+
 /*
  * EFI applications can be built with -nostdlib, in this case, it must be
  * included after including all other host environmental definitions, in
diff --git a/acpica/src/include/acpi/platform/acgnuex.h b/acpica/src/include/acpi/platform/acgnuex.h
new file mode 100644
index 00000000..c65db895
--- /dev/null
+++ b/acpica/src/include/acpi/platform/acgnuex.h
@@ -0,0 +1,78 @@
+#ifndef __ACGNUEX_H__
+#define __ACGNUEX_H__
+
+#ifdef __KERNEL__
+
+/*
+ * Overrides for in-kernel ACPICA
+ */
+acpi_status ACPI_INIT_FUNCTION acpi_os_initialize(void);
+
+acpi_status acpi_os_terminate(void);
+
+static inline void *acpi_os_allocate(acpi_size size)
+{
+	return kmalloc(size, GFP_ATOMIC);
+}
+
+static inline void *acpi_os_allocate_zeroed(acpi_size size)
+{
+	void *memory = acpi_os_allocate(size);
+	memset(memory, 0, size);
+	return memory;
+}
+
+static inline void acpi_os_free(void *memory)
+{
+	kfree(memory); 
+}
+
+static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
+{
+	return kmem_cache_alloc(cache);
+}
+
+static inline acpi_thread_id acpi_os_get_thread_id(void)
+{
+	return (acpi_thread_id) (unsigned long)0; // XXX Single thread
+}
+
+/*
+ * When lockdep is enabled, the spin_lock_init() macro stringifies it's
+ * argument and uses that as a name for the lock in debugging.
+ * By executing spin_lock_init() in a macro the key changes from "lock" for
+ * all locks to the name of the argument of acpi_os_create_lock(), which
+ * prevents lockdep from reporting false positives for ACPICA locks.
+ */
+#define acpi_os_create_lock(__handle) \
+	({ \
+		int *lock = ACPI_ALLOCATE(sizeof(*lock)); \
+		if (lock) { \
+			*(__handle) = lock; \
+			simple_lock_init(*(__handle)); \
+		} \
+		lock ? AE_OK : AE_NO_MEMORY; \
+	})
+
+static inline u8 acpi_os_readable(void *pointer, acpi_size length)
+{
+	return TRUE;
+}
+
+static inline acpi_status acpi_os_initialize_debugger(void)
+{
+	return AE_OK;
+}
+
+static inline void acpi_os_terminate_debugger(void)
+{
+	return;
+}
+
+/*
+ * OSL interfaces added by Linux
+ */
+
+#endif				/* __KERNEL__ */
+
+#endif				/* __ACGNUEX_H__ */