diff options
Diffstat (limited to 'driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_debug.h')
| -rwxr-xr-x | driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_debug.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_debug.h b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_debug.h new file mode 100755 index 0000000..5fff289 --- /dev/null +++ b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_debug.h @@ -0,0 +1,164 @@ +/* + * + * (C) COPYRIGHT 2012-2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + + + +#ifndef _KBASE_DEBUG_H +#define _KBASE_DEBUG_H + +#include <linux/bug.h> + +/** @brief If equals to 0, a trace containing the file, line, and function will be displayed before each message. */ +#define KBASE_DEBUG_SKIP_TRACE 0 + +/** @brief If different from 0, the trace will only contain the file and line. */ +#define KBASE_DEBUG_SKIP_FUNCTION_NAME 0 + +/** @brief Disable the asserts tests if set to 1. Default is to disable the asserts in release. */ +#ifndef KBASE_DEBUG_DISABLE_ASSERTS +#ifdef CONFIG_MALI_DEBUG +#define KBASE_DEBUG_DISABLE_ASSERTS 0 +#else +#define KBASE_DEBUG_DISABLE_ASSERTS 1 +#endif +#endif /* KBASE_DEBUG_DISABLE_ASSERTS */ + +/** Function type that is called on an KBASE_DEBUG_ASSERT() or KBASE_DEBUG_ASSERT_MSG() */ +typedef void (kbase_debug_assert_hook) (void *); + +struct kbasep_debug_assert_cb { + kbase_debug_assert_hook *func; + void *param; +}; + +/** + * @def KBASEP_DEBUG_PRINT_TRACE + * @brief Private macro containing the format of the trace to display before every message + * @sa KBASE_DEBUG_SKIP_TRACE, KBASE_DEBUG_SKIP_FUNCTION_NAME + */ +#if !KBASE_DEBUG_SKIP_TRACE +#define KBASEP_DEBUG_PRINT_TRACE \ + "In file: " __FILE__ " line: " CSTD_STR2(__LINE__) +#if !KBASE_DEBUG_SKIP_FUNCTION_NAME +#define KBASEP_DEBUG_PRINT_FUNCTION __func__ +#else +#define KBASEP_DEBUG_PRINT_FUNCTION "" +#endif +#else +#define KBASEP_DEBUG_PRINT_TRACE "" +#endif + +/** + * @def KBASEP_DEBUG_ASSERT_OUT(trace, function, ...) + * @brief (Private) system printing function associated to the @see KBASE_DEBUG_ASSERT_MSG event. + * @param trace location in the code from where the message is printed + * @param function function from where the message is printed + * @param ... Format string followed by format arguments. + * @note function parameter cannot be concatenated with other strings + */ +/* Select the correct system output function*/ +#ifdef CONFIG_MALI_DEBUG +#define KBASEP_DEBUG_ASSERT_OUT(trace, function, ...)\ + do { \ + pr_err("Mali<ASSERT>: %s function:%s ", trace, function);\ + pr_err(__VA_ARGS__);\ + pr_err("\n");\ + } while (false) +#else +#define KBASEP_DEBUG_ASSERT_OUT(trace, function, ...) CSTD_NOP() +#endif + +#ifdef CONFIG_MALI_DEBUG +#define KBASE_CALL_ASSERT_HOOK() kbasep_debug_assert_call_hook() +#else +#define KBASE_CALL_ASSERT_HOOK() CSTD_NOP() +#endif + +/** + * @def KBASE_DEBUG_ASSERT(expr) + * @brief Calls @see KBASE_PRINT_ASSERT and prints the expression @a expr if @a expr is false + * + * @note This macro does nothing if the flag @see KBASE_DEBUG_DISABLE_ASSERTS is set to 1 + * + * @param expr Boolean expression + */ +#define KBASE_DEBUG_ASSERT(expr) \ + KBASE_DEBUG_ASSERT_MSG(expr, #expr) + +#if KBASE_DEBUG_DISABLE_ASSERTS +#define KBASE_DEBUG_ASSERT_MSG(expr, ...) CSTD_NOP() +#else + /** + * @def KBASE_DEBUG_ASSERT_MSG(expr, ...) + * @brief Calls @see KBASEP_DEBUG_ASSERT_OUT and prints the given message if @a expr is false + * + * @note This macro does nothing if the flag @see KBASE_DEBUG_DISABLE_ASSERTS is set to 1 + * + * @param expr Boolean expression + * @param ... Message to display when @a expr is false, as a format string followed by format arguments. + */ +#define KBASE_DEBUG_ASSERT_MSG(expr, ...) \ + do { \ + if (!(expr)) { \ + KBASEP_DEBUG_ASSERT_OUT(KBASEP_DEBUG_PRINT_TRACE, KBASEP_DEBUG_PRINT_FUNCTION, __VA_ARGS__);\ + KBASE_CALL_ASSERT_HOOK();\ + BUG();\ + } \ + } while (false) +#endif /* KBASE_DEBUG_DISABLE_ASSERTS */ + +/** + * @def KBASE_DEBUG_CODE( X ) + * @brief Executes the code inside the macro only in debug mode + * + * @param X Code to compile only in debug mode. + */ +#ifdef CONFIG_MALI_DEBUG +#define KBASE_DEBUG_CODE(X) X +#else +#define KBASE_DEBUG_CODE(X) CSTD_NOP() +#endif /* CONFIG_MALI_DEBUG */ + +/** @} */ + +/** + * @brief Register a function to call on ASSERT + * + * Such functions will \b only be called during Debug mode, and for debugging + * features \b only. Do not rely on them to be called in general use. + * + * To disable the hook, supply NULL to \a func. + * + * @note This function is not thread-safe, and should only be used to + * register/deregister once in the module's lifetime. + * + * @param[in] func the function to call when an assert is triggered. + * @param[in] param the parameter to pass to \a func when calling it + */ +void kbase_debug_assert_register_hook(kbase_debug_assert_hook *func, void *param); + +/** + * @brief Call a debug assert hook previously registered with kbase_debug_assert_register_hook() + * + * @note This function is not thread-safe with respect to multiple threads + * registering functions and parameters with + * kbase_debug_assert_register_hook(). Otherwise, thread safety is the + * responsibility of the registered hook. + */ +void kbasep_debug_assert_call_hook(void); + +#endif /* _KBASE_DEBUG_H */ |