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-rw-r--r--src/include/ipxe/acpi.h12
-rw-r--r--src/include/ipxe/efi/efi_acpi.h13
-rw-r--r--src/include/ipxe/null_acpi.h6
3 files changed, 28 insertions, 3 deletions
diff --git a/src/include/ipxe/acpi.h b/src/include/ipxe/acpi.h
index f979ace..6d19f05 100644
--- a/src/include/ipxe/acpi.h
+++ b/src/include/ipxe/acpi.h
@@ -355,6 +355,8 @@ struct acpi_model {
#define PROVIDE_ACPI_INLINE( _subsys, _api_func ) \
PROVIDE_SINGLE_API_INLINE ( ACPI_PREFIX_ ## _subsys, _api_func )
+extern userptr_t acpi_find_via_rsdt ( uint32_t signature, unsigned int index );
+
/* Include all architecture-independent ACPI API headers */
#include <ipxe/null_acpi.h>
#include <ipxe/efi/efi_acpi.h>
@@ -369,13 +371,21 @@ struct acpi_model {
*/
userptr_t acpi_find_rsdt ( void );
+/**
+ * Locate ACPI table
+ *
+ * @v signature Requested table signature
+ * @v index Requested index of table with this signature
+ * @ret table Table, or UNULL if not found
+ */
+userptr_t acpi_find ( uint32_t signature, unsigned int index );
+
extern struct acpi_descriptor *
acpi_describe ( struct interface *interface );
#define acpi_describe_TYPE( object_type ) \
typeof ( struct acpi_descriptor * ( object_type ) )
extern void acpi_fix_checksum ( struct acpi_header *acpi );
-extern userptr_t acpi_find ( uint32_t signature, unsigned int index );
extern int acpi_sx ( uint32_t signature );
extern void acpi_add ( struct acpi_descriptor *desc );
extern void acpi_del ( struct acpi_descriptor *desc );
diff --git a/src/include/ipxe/efi/efi_acpi.h b/src/include/ipxe/efi/efi_acpi.h
index 01456f1..a698863 100644
--- a/src/include/ipxe/efi/efi_acpi.h
+++ b/src/include/ipxe/efi/efi_acpi.h
@@ -15,4 +15,17 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define ACPI_PREFIX_efi __efi_
#endif
+/**
+ * Locate ACPI table
+ *
+ * @v signature Requested table signature
+ * @v index Requested index of table with this signature
+ * @ret table Table, or UNULL if not found
+ */
+static inline __attribute__ (( always_inline )) userptr_t
+ACPI_INLINE ( efi, acpi_find ) ( uint32_t signature, unsigned int index ) {
+
+ return acpi_find_via_rsdt ( signature, index );
+}
+
#endif /* _IPXE_EFI_ACPI_H */
diff --git a/src/include/ipxe/null_acpi.h b/src/include/ipxe/null_acpi.h
index 1e469e3..cedb028 100644
--- a/src/include/ipxe/null_acpi.h
+++ b/src/include/ipxe/null_acpi.h
@@ -15,8 +15,10 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define ACPI_PREFIX_null __null_
#endif
-static inline __always_inline userptr_t
-ACPI_INLINE ( null, acpi_find_rsdt ) ( void ) {
+static inline __attribute__ (( always_inline )) userptr_t
+ACPI_INLINE ( null, acpi_find ) ( uint32_t signature __unused,
+ unsigned int index __unused ) {
+
return UNULL;
}