svn commit: r204916 - head/sys/dev/acpica
Jung-uk Kim
jkim at FreeBSD.org
Tue Mar 9 19:02:03 UTC 2010
Author: jkim
Date: Tue Mar 9 19:02:02 2010
New Revision: 204916
URL: http://svn.freebsd.org/changeset/base/204916
Log:
- Allow users to enable dumping Debug objects without ACPI debugger.
Setting the new sysctl MIB "debug.acpi.enable_debug_objects" to a non-zero
value enables us to print Debug object when something is written to it.
- Allow users to disable interpreter slack mode. Setting the new tunable
"debug.acpi.interpreter_slack" to zero disables some workarounds for common
BIOS mistakes and enables strict ACPI implementations by the specification.
Modified:
head/sys/dev/acpica/acpi.c
Modified: head/sys/dev/acpica/acpi.c
==============================================================================
--- head/sys/dev/acpica/acpi.c Tue Mar 9 17:26:50 2010 (r204915)
+++ head/sys/dev/acpica/acpi.c Tue Mar 9 19:02:02 2010 (r204916)
@@ -162,6 +162,7 @@ static int acpi_sname2sstate(const char
static const char *acpi_sstate2sname(int sstate);
static int acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS);
static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS);
+static int acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS);
static int acpi_pm_func(u_long cmd, void *arg, ...);
static int acpi_child_location_str_method(device_t acdev, device_t child,
char *buf, size_t buflen);
@@ -253,6 +254,19 @@ SYSCTL_STRING(_debug_acpi, OID_AUTO, acp
static int acpi_serialize_methods;
TUNABLE_INT("hw.acpi.serialize_methods", &acpi_serialize_methods);
+/* Allow users to dump Debug objects without ACPI debugger. */
+static int acpi_debug_objects;
+TUNABLE_INT("debug.acpi.enable_debug_objects", &acpi_debug_objects);
+SYSCTL_PROC(_debug_acpi, OID_AUTO, enable_debug_objects,
+ CTLFLAG_RW | CTLTYPE_INT, NULL, 0, acpi_debug_objects_sysctl, "I",
+ "Enable Debug objects");
+
+/* Allow the interpreter to ignore common mistakes in BIOS. */
+static int acpi_interpreter_slack = 1;
+TUNABLE_INT("debug.acpi.interpreter_slack", &acpi_interpreter_slack);
+SYSCTL_INT(_debug_acpi, OID_AUTO, interpreter_slack, CTLFLAG_RDTUN,
+ &acpi_interpreter_slack, 1, "Turn on interpreter slack mode.");
+
/* Power devices off and on in suspend and resume. XXX Remove once tested. */
static int acpi_do_powerstate = 1;
TUNABLE_INT("debug.acpi.do_powerstate", &acpi_do_powerstate);
@@ -452,8 +466,17 @@ acpi_attach(device_t dev)
* Set the globals from our tunables. This is needed because ACPI-CA
* uses UINT8 for some values and we have no tunable_byte.
*/
- AcpiGbl_AllMethodsSerialized = acpi_serialize_methods;
- AcpiGbl_EnableInterpreterSlack = TRUE;
+ AcpiGbl_AllMethodsSerialized = acpi_serialize_methods ? TRUE : FALSE;
+ AcpiGbl_EnableInterpreterSlack = acpi_interpreter_slack ? TRUE : FALSE;
+ AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE;
+
+#ifndef ACPI_DEBUG
+ /*
+ * Disable all debugging layers and levels.
+ */
+ AcpiDbgLayer = 0;
+ AcpiDbgLevel = 0;
+#endif
/* Start up the ACPI CA subsystem. */
status = AcpiInitializeSubsystem();
@@ -3447,8 +3470,6 @@ acpi_set_debugging(void *junk)
AcpiDbgLevel = 0;
}
- AcpiGbl_EnableAmlDebugObject = TRUE;
-
layer = getenv("debug.acpi.layer");
level = getenv("debug.acpi.level");
if (layer == NULL && level == NULL)
@@ -3525,6 +3546,26 @@ SYSCTL_PROC(_debug_acpi, OID_AUTO, level
#endif /* ACPI_DEBUG */
static int
+acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS)
+{
+ int error;
+ int old;
+
+ old = acpi_debug_objects;
+ error = sysctl_handle_int(oidp, &acpi_debug_objects, 0, req);
+ if (error != 0 || req->newptr == NULL)
+ return (error);
+ if (old == acpi_debug_objects || (old && acpi_debug_objects))
+ return (0);
+
+ ACPI_SERIAL_BEGIN(acpi);
+ AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE;
+ ACPI_SERIAL_END(acpi);
+
+ return (0);
+}
+
+static int
acpi_pm_func(u_long cmd, void *arg, ...)
{
int state, acpi_state;
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