PM / domains: Add pd_ignore_unused to keep power domains enabled

[mirror_ubuntu-artful-kernel.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 121d5fcbd94aa200d219ef36d6445169fd24ebd7..d4aff40869528b67738453376bdb0de436e53be8 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -229,6 +229,14 @@ 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
+                       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.
+
        acpi_no_auto_ssdt       [HW,ACPI] Disable automatic loading of SSDT
 
        acpica_no_return_repair [HW, ACPI]
@@ -306,8 +314,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        acpi_sci=       [HW,ACPI] ACPI System Control Interrupt trigger mode
                        Format: { level | edge | high | low }
 
-       acpi_serialize  [HW,ACPI] force serialization of AML methods
-
        acpi_skip_timer_override [HW,ACPI]
                        Recognize and ignore IRQ0/pin2 Interrupt Override.
                        For broken nForce2 BIOS resulting in XT-PIC timer.
@@ -2552,6 +2558,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        pcmv=           [HW,PCMCIA] BadgePAD 4
 
+       pd_ignore_unused
+                       [PM]
+                       Keep all power-domains already enabled by bootloader on,
+                       even if no driver has claimed them. This is useful
+                       for debug and development, but should not be
+                       needed on a platform with proper driver support.
+
        pd.             [PARIDE]
                        See Documentation/blockdev/paride.txt.
 
@@ -3424,14 +3437,24 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                        of CONFIG_HIGHPTE.
 
        vdso=           [X86,SH]
-                       vdso=2: enable compat VDSO (default with COMPAT_VDSO)
-                       vdso=1: enable VDSO (default)
+                       On X86_32, this is an alias for vdso32=.  Otherwise:
+
+                       vdso=1: enable VDSO (the default)
                        vdso=0: disable VDSO mapping
 
-       vdso32=         [X86]
-                       vdso32=2: enable compat VDSO (default with COMPAT_VDSO)
-                       vdso32=1: enable 32-bit VDSO (default)
-                       vdso32=0: disable 32-bit VDSO mapping
+       vdso32=         [X86] Control the 32-bit vDSO
+                       vdso32=1: enable 32-bit VDSO
+                       vdso32=0 or vdso32=2: disable 32-bit VDSO
+
+                       See the help text for CONFIG_COMPAT_VDSO for more
+                       details.  If CONFIG_COMPAT_VDSO is set, the default is
+                       vdso32=0; otherwise, the default is vdso32=1.
+
+                       For compatibility with older kernels, vdso32=2 is an
+                       alias for vdso32=0.
+
+                       Try vdso32=0 if you encounter an error that says:
+                       dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!
 
        vector=         [IA-64,SMP]
                        vector=percpu: enable percpu vector domain