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ACPI / debugger: Add IO interface to access debugger functionalities

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This patch adds /sys/kernel/debug/acpi/acpidbg, which can be used by
userspace programs to access ACPICA debugger functionalities.

Known issue:
1. IO flush support
   acpi_os_notify_command_complete() and acpi_os_wait_command_ready() can
   be used by acpi_dbg module to implement .flush() filesystem operation.
   While this patch doesn't go that far. It then becomes userspace tool's
   duty now to flush old commands before executing new batch mode commands.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng
2015-12-03 10:43:00 +08:00
committed by Rafael J. Wysocki
parent 8a2a2501a8
commit 8cfb0cdf07
8 changed files with 887 additions and 17 deletions
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2
include/acpi/platform/aclinux.h
View File

@@ -152,8 +152,6 @@
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize_command_signals
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate_command_signals
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_command_ready
#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_notify_command_complete
/*
* OSL interfaces used by utilities

10
include/acpi/platform/aclinuxex.h
View File

@@ -138,16 +138,6 @@ static inline void acpi_os_terminate_command_signals(void)
{
}
static inline acpi_status acpi_os_wait_command_ready(void)
{
return AE_ERROR;
}
static inline acpi_status acpi_os_notify_command_complete(void)
{
return AE_ERROR;
}
/*
* OSL interfaces added by Linux
*/