On Mon, 2011-09-19 at 10:12 +0800, Jim Green wrote:
> On 19 September 2011 00:23, Lin Ming <ming.m.lin@xxxxxxxxx> wrote:
> > On Mon, Sep 19, 2011 at 1:18 AM, Jim Green
> > <student.northwestern@xxxxxxxxx> wrote:
> >> Hello:
> >>
> >> I am running 2.6.38.8-4 kernel on p8p67 deluxe motherboard(bios
> >> version 1702, latest stable)
> >>
> >> 2357 Sep 18 13:05:07 localhost kernel: [ 1.045727] ACPI: EC: Look
> >> up EC in DSDT
> >> 2358 Sep 18 13:05:07 localhost kernel: [ 1.046535] ACPI: Executed 1
> >> blocks of module-level executable AML code
> >> 2359 Sep 18 13:05:07 localhost kernel: [ 1.049876] ACPI Error:
> >> [RAMB] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359)
> >> 2360 Sep 18 13:05:07 localhost kernel: [ 1.049880] ACPI Exception:
> >> AE_NOT_FOUND, Could not execute arguments for [RAMW] (Region)
> >> (20110112/ nsinit-349)
> >> 2361 Sep 18 13:05:07 localhost kernel: [ 1.050347] ACPI: SSDT
> >> 00000000df5d4818 0079C (v01 AMI IST 00000001 MSFT 03000001)
> >> 2362 Sep 18 13:05:07 localhost kernel: [ 1.050805] ACPI: Dynamic
> >> OEM Table Load:
> >> 2363 Sep 18 13:05:07 localhost kernel: [ 1.050807] ACPI: SSDT
> >> (null) 0079C (v01 AMI IST 00000001 MSFT 03000001)
> >> 2364 Sep 18 13:05:07 localhost kernel: [ 1.050883] ACPI: SSDT
> >> 00000000df5dba18 0021C (v01 AMI CST 00000001 MSFT 03000001)
> >> 2365 Sep 18 13:05:07 localhost kernel: [ 1.051168] ACPI: Dynamic
> >> OEM Table Load:
> >> 2366 Sep 18 13:05:07 localhost kernel: [ 1.051169] ACPI: SSDT
> >> (null) 0021C (v01 AMI CST 00000001 MSFT 03000001)
> >> 2367 Sep 18 13:05:07 localhost kernel: [ 1.052510] ACPI: Interpreter enabled
> >> 2368 Sep 18 13:05:07 localhost kernel: [ 1.052512] ACPI: (supports
> >> S0 S1 S3 S4 S5)
> >> 2369 Sep 18 13:05:07 localhost kernel: [ 1.052530] ACPI: Using
> >> IOAPIC for interrupt routing
> >>
> >> Could anyone help how to fix this error?.. is this bug fixed in some
> >> later kernel versions?
> >
> > Could you attach the acpidump output?
>
> Hi!
>
> Pls see attached, THanks!
Hi, please try below patch on 2.6.38.* kernel.
(Note, this patch can't be applied on top of latest 3.1-rc kernel,
because dsopcode.c file was renamed).
>From 5eeaba8a77213dc9ce777a69fd178468253ef578 Mon Sep 17 00:00:00 2001
From: Lin Ming <ming.m.lin@xxxxxxxxx>
Date: Mon, 19 Sep 2011 14:36:42 +0800
Subject: [PATCH] ACPICA: Save scope node to resolve region argument
Scope (_SB)
{
Name (RAMB, 0xDF5A1018)
OperationRegion (\RAMW, SystemMemory, RAMB, 0x00010000)
}
For above ASL code, we need to save scope node(\_SB) to lookup
the argument node(\_SB.RAMB).
Reported-by: Jim Green <student.northwestern@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
---
drivers/acpi/acpica/acobject.h | 1 +
drivers/acpi/acpica/dsopcode.c | 2 +-
drivers/acpi/acpica/excreate.c | 6 ++++++
3 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 1055769..6d276c2 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -358,6 +358,7 @@ typedef enum {
*/
struct acpi_object_extra {
ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *method_REG; /* _REG method for this region (if any) */
+ struct acpi_namespace_node *scope_node;
void *region_context; /* Region-specific data */
u8 *aml_start;
u32 aml_length;
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index bbecf29..7ba0335 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -394,7 +394,7 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
/* Execute the argument AML */
- status = acpi_ds_execute_arguments(node, node->parent,
+ status = acpi_ds_execute_arguments(node, extra_desc->extra.scope_node,
extra_desc->extra.aml_length,
extra_desc->extra.aml_start);
if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index e7b372d..df6ef00 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -329,6 +329,12 @@ acpi_ex_create_region(u8 * aml_start,
region_obj2 = obj_desc->common.next_object;
region_obj2->extra.aml_start = aml_start;
region_obj2->extra.aml_length = aml_length;
+ if (walk_state->scope_info) {
+ region_obj2->extra.scope_node =
+ walk_state->scope_info->scope.node;
+ } else {
+ region_obj2->extra.scope_node = node;
+ }
/* Init the region from the operands */
--
1.7.2.5
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