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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/acpi/acpica/utdebug.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'drivers/acpi/acpica/utdebug.c')
-rw-r--r--drivers/acpi/acpica/utdebug.c621
1 files changed, 621 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
new file mode 100644
index 000000000..a31e07400
--- /dev/null
+++ b/drivers/acpi/acpica/utdebug.c
@@ -0,0 +1,621 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/******************************************************************************
+ *
+ * Module Name: utdebug - Debug print/trace routines
+ *
+ * Copyright (C) 2000 - 2026, Intel Corp.
+ *
+ *****************************************************************************/
+
+#define EXPORT_ACPI_INTERFACES
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acinterp.h"
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utdebug")
+
+#ifdef ACPI_DEBUG_OUTPUT
+static acpi_thread_id acpi_gbl_previous_thread_id = (acpi_thread_id) 0xFFFFFFFF;
+static const char *acpi_gbl_function_entry_prefix = "----Entry";
+static const char *acpi_gbl_function_exit_prefix = "----Exit-";
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_init_stack_ptr_trace
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
+ *
+ ******************************************************************************/
+
+void acpi_ut_init_stack_ptr_trace(void)
+{
+ acpi_size current_sp;
+
+#pragma GCC diagnostic push
+#if defined(__GNUC__) && __GNUC__ >= 12
+#pragma GCC diagnostic ignored "-Wdangling-pointer="
+#endif
+ acpi_gbl_entry_stack_pointer = &current_sp;
+#pragma GCC diagnostic pop
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_track_stack_ptr
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Save the current CPU stack pointer
+ *
+ ******************************************************************************/
+
+void acpi_ut_track_stack_ptr(void)
+{
+ acpi_size current_sp;
+
+ if (&current_sp < acpi_gbl_lowest_stack_pointer) {
+#pragma GCC diagnostic push
+#if defined(__GNUC__) && __GNUC__ >= 12
+#pragma GCC diagnostic ignored "-Wdangling-pointer="
+#endif
+ acpi_gbl_lowest_stack_pointer = &current_sp;
+#pragma GCC diagnostic pop
+ }
+
+ if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
+ acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trim_function_name
+ *
+ * PARAMETERS: function_name - Ascii string containing a procedure name
+ *
+ * RETURN: Updated pointer to the function name
+ *
+ * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
+ * This allows compiler macros such as __func__ to be used
+ * with no change to the debug output.
+ *
+ ******************************************************************************/
+
+static const char *acpi_ut_trim_function_name(const char *function_name)
+{
+
+ /* All Function names are longer than 4 chars, check is safe */
+
+ if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
+
+ /* This is the case where the original source has not been modified */
+
+ return (function_name + 4);
+ }
+
+ if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
+
+ /* This is the case where the source has been 'linuxized' */
+
+ return (function_name + 5);
+ }
+
+ return (function_name);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_debug_print
+ *
+ * PARAMETERS: requested_debug_level - Requested debug print level
+ * line_number - Caller's line number (for error output)
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * format - Printf format field
+ * ... - Optional printf arguments
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print error message with prefix consisting of the module name,
+ * line number, and component ID.
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_debug_print(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...)
+{
+ acpi_thread_id thread_id;
+ va_list args;
+#ifdef ACPI_APPLICATION
+ int fill_count;
+#endif
+
+ /* Check if debug output enabled */
+
+ if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
+ return;
+ }
+
+ /*
+ * Thread tracking and context switch notification
+ */
+ thread_id = acpi_os_get_thread_id();
+ if (thread_id != acpi_gbl_previous_thread_id) {
+ if (ACPI_LV_THREADS & acpi_dbg_level) {
+ acpi_os_printf
+ ("\n**** Context Switch from TID %u to TID %u ****\n\n",
+ (u32)acpi_gbl_previous_thread_id, (u32)thread_id);
+ }
+
+ acpi_gbl_previous_thread_id = thread_id;
+ acpi_gbl_nesting_level = 0;
+ }
+
+ /*
+ * Display the module name, current line number, thread ID (if requested),
+ * current procedure nesting level, and the current procedure name
+ */
+ acpi_os_printf("%9s-%04d ", module_name, line_number);
+
+#ifdef ACPI_APPLICATION
+ /*
+ * For acpi_exec/iASL only, emit the thread ID and nesting level.
+ * Note: nesting level is really only useful during a single-thread
+ * execution. Otherwise, multiple threads will keep resetting the
+ * level.
+ */
+ if (ACPI_LV_THREADS & acpi_dbg_level) {
+ acpi_os_printf("[%u] ", (u32)thread_id);
+ }
+
+ fill_count = 48 - acpi_gbl_nesting_level -
+ strlen(acpi_ut_trim_function_name(function_name));
+ if (fill_count < 0) {
+ fill_count = 0;
+ }
+
+ acpi_os_printf("[%02d] %*s",
+ acpi_gbl_nesting_level, acpi_gbl_nesting_level + 1, " ");
+ acpi_os_printf("%s%*s: ",
+ acpi_ut_trim_function_name(function_name), fill_count,
+ " ");
+
+#else
+ acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name));
+#endif
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_debug_print)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_debug_print_raw
+ *
+ * PARAMETERS: requested_debug_level - Requested debug print level
+ * line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * format - Printf format field
+ * ... - Optional printf arguments
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print message with no headers. Has same interface as
+ * debug_print so that the same macros can be used.
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_debug_print_raw(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...)
+{
+ va_list args;
+
+ /* Check if debug output enabled */
+
+ if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
+ return;
+ }
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+void
+acpi_ut_trace(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s\n",
+ acpi_gbl_function_entry_prefix);
+ }
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_trace)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace_ptr
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * pointer - Pointer to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+void
+acpi_ut_trace_ptr(u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const void *pointer)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %p\n",
+ acpi_gbl_function_entry_prefix, pointer);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace_str
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * string - Additional string to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_trace_str(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, const char *string)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %s\n",
+ acpi_gbl_function_entry_prefix, string);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace_u32
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * integer - Integer to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_trace_u32(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, u32 integer)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %08X\n",
+ acpi_gbl_function_entry_prefix, integer);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id)
+{
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s\n",
+ acpi_gbl_function_exit_prefix);
+ }
+
+ if (acpi_gbl_nesting_level) {
+ acpi_gbl_nesting_level--;
+ }
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_exit)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_status_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * status - Exit status code
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit status also.
+ *
+ ******************************************************************************/
+void
+acpi_ut_status_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, acpi_status status)
+{
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ if (ACPI_SUCCESS(status)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name,
+ module_name, component_id, "%s %s\n",
+ acpi_gbl_function_exit_prefix,
+ acpi_format_exception(status));
+ } else {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name,
+ module_name, component_id,
+ "%s ****Exception****: %s\n",
+ acpi_gbl_function_exit_prefix,
+ acpi_format_exception(status));
+ }
+ }
+
+ if (acpi_gbl_nesting_level) {
+ acpi_gbl_nesting_level--;
+ }
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_value_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * value - Value to be printed with exit msg
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit value also.
+ *
+ ******************************************************************************/
+void
+acpi_ut_value_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, u64 value)
+{
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %8.8X%8.8X\n",
+ acpi_gbl_function_exit_prefix,
+ ACPI_FORMAT_UINT64(value));
+ }
+
+ if (acpi_gbl_nesting_level) {
+ acpi_gbl_nesting_level--;
+ }
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_ptr_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * ptr - Pointer to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit value also.
+ *
+ ******************************************************************************/
+void
+acpi_ut_ptr_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, u8 *ptr)
+{
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %p\n",
+ acpi_gbl_function_exit_prefix, ptr);
+ }
+
+ if (acpi_gbl_nesting_level) {
+ acpi_gbl_nesting_level--;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_str_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * string - String to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit value also.
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_str_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, const char *string)
+{
+
+ /* Check if enabled up-front for performance */
+
+ if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %s\n",
+ acpi_gbl_function_exit_prefix, string);
+ }
+
+ if (acpi_gbl_nesting_level) {
+ acpi_gbl_nesting_level--;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_trace_point
+ *
+ * PARAMETERS: type - Trace event type
+ * begin - TRUE if before execution
+ * aml - Executed AML address
+ * pathname - Object path
+ * pointer - Pointer to the related object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Interpreter execution trace.
+ *
+ ******************************************************************************/
+
+void
+acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ acpi_ex_trace_point(type, begin, aml, pathname);
+
+#ifdef ACPI_USE_SYSTEM_TRACER
+ acpi_os_trace_point(type, begin, aml, pathname);
+#endif
+}
+
+ACPI_EXPORT_SYMBOL(acpi_trace_point)
+
+#endif