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- Allow users to enable dumping Debug objects without ACPI debugger.

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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.
This commit is contained in:
Jung-uk Kim 2010-03-09 19:02:02 +00:00
parent f126fa5fee
commit 2a18c71d03
1 changed files with 45 additions and 4 deletions
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49
sys/dev/acpica/acpi.c
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@ -162,6 +162,7 @@ static int acpi_sname2sstate(const char *sname);
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, acpi_ca_version, CTLFLAG_RD,
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)
@ -3524,6 +3545,26 @@ SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW | CTLTYPE_STRING,
"debug.acpi.level", 0, acpi_debug_sysctl, "A", "");
#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, ...)
{