coreboot/src/arch
Marc Jones 24462e6507 x86/acpigen: Fix ACPI _ROM method
Fix the following Error:
FAILED [LOW] AMLAsmASL_MSG_SERIALIZED_REQUIRED: Test 1, Assembler remark in line
142
Line | AML source
--------------------------------------------------------------------------------
00139|
00140|     Scope (\_SB.PCI0.IGFX)
00141|     {
00142|         Method (_ROM, 2, NotSerialized)  // _ROM: Read-Only Memory
     |                   ^
     | Remark 2120: Control Method should be made Serialized    (due to creation of named objects within)
00143|         {
00144|             OperationRegion (ROMS, SystemMemory, 0xCD520000, 0xFE00)
00145|             Field (ROMS, AnyAcc, NoLock, Preserve)
================================================================================

ADVICE: (for Remark #2120, ASL_MSG_SERIALIZED_REQUIRED): A named object is
created inside a non-serialized method - this method should be serialized. It is
possible that one thread enters the method and blocks and then a second thread
also executes the method, ending up in two attempts to create the object and
causing a failure.

Use the acpigen_write_method_serialized() to correct the error.

BUG=b:112476331
TEST=Run FWTS.

Change-Id: I145c3c3103efb4a02b4e02dd177f4bf50a2c7b3e
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/28124
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-08-17 21:10:04 +00:00
..
arm src/arch: Fix typo 2018-08-09 15:56:02 +00:00
arm64 arm64: mmu: Spot check security state for TTB mapping 2018-08-13 12:24:56 +00:00
mips arch: Retire cache_sync_instructions() from <arch/cache.h> (except arm) 2018-08-07 20:55:58 +00:00
power8 arch: Retire cache_sync_instructions() from <arch/cache.h> (except arm) 2018-08-07 20:55:58 +00:00
riscv arch: Retire cache_sync_instructions() from <arch/cache.h> (except arm) 2018-08-07 20:55:58 +00:00
x86 x86/acpigen: Fix ACPI _ROM method 2018-08-17 21:10:04 +00:00