Hi, Rafael > From: Wysocki, Rafael J > Sent: Monday, March 17, 2014 8:09 PM > > On 3/17/2014 5:14 AM, Lv Zheng wrote: > > This feature enabled by the following commit is still under development. > > > > Commit: cd52379678785b02d7a357988cfba214fdaf92f4 > > Subject: ACPICA: Add global option to disable method auto-serialization. > > This change adds an option to disable the auto-serialization of > > methods that create named objects. > > > > This patch disables it by default temporarily according to the bug reports. > > Well, it doesn't restore the 3.14 behavior of acpi_auto_serialize, as > far as I can say, so we can't apply it. > > I still can drop the commits related to auto-serialization from my > acpica branch. Which commits are they? >From linux-pm/bleeding-edge branch, I found this series includes the following commits: Commit: a0fd108f2da56b769472fc0095616fb370988516 Author: Lv Zheng <lv.zheng@xxxxxxxxx> Subject: ACPI: Rename kernel parameter "acpi_serialize" to "acpi_no_auto_serialize" Commit: 5f1cb4a92e4c4aabd139ff9ca1e11c0e2db2ac59 Author: Lv Zheng <lv.zheng@xxxxxxxxx> Subject: ACPICA: Remove global option to serialize all control methods. Commit: cd52379678785b02d7a357988cfba214fdaf92f4 Author: Bob Moore <robert.moore@xxxxxxxxx> Subject: ACPICA: Add global option to disable method auto-serialization. Commit: f56b05bd111b01141ef74568dc4d262c70295d03 Author: Lv Zheng <lv.zheng@xxxxxxxxx> Subject: ACPICA: Add additional named objects for the auto-serialize method scan. Commit: 27f1899350a1d6baab117c03c87f0e37730047bd Author: Bob Moore <robert.moore@xxxxxxxxx> Subject: ACPICA: Add auto-serialization support for ill-behaved control methods. Reverting these commits can restore original Linux behavior. Please check. Thanks and best regards -Lv > > > References: http://www.spinics.net/lists/linux-acpi/msg49496.html > > Reported-by: Valdis Kletnieks <validis.kletnieks@xxxxxx> > > Reported-by: Sabrina Dubroka <sd@xxxxxxxxxxxxxxx> > > Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> > > --- > > Documentation/kernel-parameters.txt | 8 ++++---- > > drivers/acpi/acpica/acglobal.h | 2 +- > > drivers/acpi/osl.c | 12 ++++++------ > > 3 files changed, 11 insertions(+), 11 deletions(-) > > > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > > index 91f0be8..a159537 100644 > > --- a/Documentation/kernel-parameters.txt > > +++ b/Documentation/kernel-parameters.txt > > @@ -229,13 +229,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. > > use by PCI > > Format: <irq>,<irq>... > > > > - acpi_no_auto_serialize [HW,ACPI] > > - Disable auto-serialization of AML methods > > + acpi_auto_serialize [HW,ACPI] > > + Enable auto-serialization of AML methods > > AML control methods that contain the opcodes to create > > named objects will be marked as "Serialized" by the > > auto-serialization feature. > > - This feature is enabled by default. > > - This option allows to turn off the feature. > > + This feature is disabled by default. > > + This option allows to turn on the feature. > > > > acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT > > > > diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h > > index 49bbc71..ea0f838 100644 > > --- a/drivers/acpi/acpica/acglobal.h > > +++ b/drivers/acpi/acpica/acglobal.h > > @@ -99,7 +99,7 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_interpreter_slack, FALSE); > > * that create named objects are marked Serialized in order to prevent > > * possible run-time problems if they are entered by more than one thread. > > */ > > -ACPI_INIT_GLOBAL(u8, acpi_gbl_auto_serialize_methods, TRUE); > > +ACPI_INIT_GLOBAL(u8, acpi_gbl_auto_serialize_methods, FALSE); > > > > /* > > * Create the predefined _OSI method in the namespace? Default is TRUE > > diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c > > index d40d6dc..928f0c2 100644 > > --- a/drivers/acpi/osl.c > > +++ b/drivers/acpi/osl.c > > @@ -1538,20 +1538,20 @@ static int __init osi_setup(char *str) > > __setup("acpi_osi=", osi_setup); > > > > /* > > - * Disable the auto-serialization of named objects creation methods. > > + * Enable the auto-serialization of named objects creation methods. > > * > > - * This feature is enabled by default. It marks the AML control methods > > + * This feature is disabled by default. It marks the AML control methods > > * that contain the opcodes to create named objects as "Serialized". > > */ > > -static int __init acpi_no_auto_serialize_setup(char *str) > > +static int __init acpi_auto_serialize_setup(char *str) > > { > > - acpi_gbl_auto_serialize_methods = FALSE; > > - pr_info("ACPI: auto-serialization disabled\n"); > > + acpi_gbl_auto_serialize_methods = TRUE; > > + pr_info("ACPI: auto-serialization enabled\n"); > > > > return 1; > > } > > > > -__setup("acpi_no_auto_serialize", acpi_no_auto_serialize_setup); > > +__setup("acpi_auto_serialize", acpi_auto_serialize_setup); > > > > /* Check of resource interference between native drivers and ACPI > > * OperationRegions (SystemIO and System Memory only). -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
