ACPICA: disassembler: disassemble OEMx tables as AML

Signed-off-by: NErik Schmauss <erik.schmauss@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpica/utmisc.c

@@ -62,7 +62,8 @@ u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
 	if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) ||
 	    ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) ||
 	    ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT) ||
-	    ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT)) {
+	    ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT) ||
+	    ACPI_IS_OEM_SIG(table->signature)) {
 		return (TRUE);
 	}
 

include/acpi/actbl.h

@@ -38,6 +38,7 @@
 #define ACPI_SIG_XSDT           "XSDT"	/* Extended  System Description Table */
 #define ACPI_SIG_SSDT           "SSDT"	/* Secondary System Description Table */
 #define ACPI_RSDP_NAME          "RSDP"	/* Short name for RSDP, not signature */
+#define ACPI_OEM_NAME           "OEM"	/* Short name for OEM, not signature */
 
 /*
  * All tables and structures must be byte-packed to match the ACPI

include/acpi/actypes.h

@@ -527,6 +527,10 @@ typedef u64 acpi_integer;
 #define ACPI_VALIDATE_RSDP_SIG(a)       (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
 #define ACPI_MAKE_RSDP_SIG(dest)        (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
 
+/* Support for OEMx signature (x can be any character) */
+#define ACPI_IS_OEM_SIG(a)        (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_OEM_NAME, 3) &&\
+	 strnlen (a, ACPI_NAME_SIZE) == ACPI_NAME_SIZE)
+
 /*
  * Algorithm to obtain access bit width.
  * Can be used with access_width of struct acpi_generic_address and access_size of