/*
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef NVGPU_LOG_H
#define NVGPU_LOG_H
#include <nvgpu/types.h>
#include <nvgpu/bitops.h>
struct gk20a;
enum nvgpu_log_type {
NVGPU_ERROR,
NVGPU_WARNING,
NVGPU_DEBUG,
NVGPU_INFO,
};
/*
* Each OS must implement these functions. They handle the OS specific nuances
* of printing data to a UART, log, whatever.
*/
__attribute__((format (printf, 5, 6)))
void __nvgpu_log_msg(struct gk20a *g, const char *func_name, int line,
enum nvgpu_log_type type, const char *fmt, ...);
__attribute__((format (printf, 5, 6)))
void __nvgpu_log_dbg(struct gk20a *g, u64 log_mask,
const char *func_name, int line,
const char *fmt, ...);
/*
* Use this define to set a default mask.
*/
#define NVGPU_DEFAULT_DBG_MASK (0)
#define gpu_dbg_info BIT(0) /* Lightly verbose info. */
#define gpu_dbg_fn BIT(1) /* Function name tracing. */
#define gpu_dbg_reg BIT(2) /* Register accesses; very verbose. */
#define gpu_dbg_pte BIT(3) /* GMMU PTEs. */
#define gpu_dbg_intr BIT(4) /* Interrupts. */
#define gpu_dbg_pmu BIT(5) /* gk20a pmu. */
#define gpu_dbg_clk BIT(6) /* gk20a clk. */
#define gpu_dbg_map BIT(7) /* Memory mappings. */
#define gpu_dbg_map_v BIT(8) /* Verbose mem mappings. */
#define gpu_dbg_gpu_dbg BIT(9) /* GPU debugger/profiler. */
#define gpu_dbg_cde BIT(10) /* cde info messages. */
#define gpu_dbg_cde_ctx BIT(11) /* cde context usage messages. */
#define gpu_dbg_ctxsw BIT(12) /* ctxsw tracing. */
#define gpu_dbg_sched BIT(13) /* Sched control tracing. */
#define gpu_dbg_sema BIT(14) /* Semaphore debugging. */
#define gpu_dbg_sema_v BIT(15) /* Verbose semaphore debugging. */
#define gpu_dbg_pmu_pstate BIT(16) /* p state controlled by pmu. */
#define gpu_dbg_xv BIT(17) /* XVE debugging. */
#define gpu_dbg_shutdown BIT(18) /* GPU shutdown tracing. */
#define gpu_dbg_kmem BIT(19) /* Kmem tracking debugging. */
#define gpu_dbg_pd_cache BIT(20) /* PD cache traces. */
#define gpu_dbg_alloc BIT(21) /* Allocator debugging. */
#define gpu_dbg_dma BIT(22) /* DMA allocation prints. */
#define gpu_dbg_sgl BIT(23) /* SGL related traces. */
#define gpu_dbg_vidmem BIT(24) /* VIDMEM tracing. */
#define gpu_dbg_nvlink BIT(25) /* nvlink Operation tracing. */
#define gpu_dbg_clk_arb BIT(26) /* Clk arbiter debugging. */
#define gpu_dbg_mem BIT(31) /* memory accesses; very verbose. */
/**
* nvgpu_log_mask_enabled - Check if logging is enabled
*
* @g - The GPU.
* @log_mask - The mask the check against.
*
* Check if, given the passed mask, logging would actually happen. This is
* useful for avoiding calling the logging function many times when we know that
* said prints would not happen. For example for-loops of log statements in
* critical paths.
*/
int nvgpu_log_mask_enabled(struct gk20a *g, u64 log_mask);
/**
* nvgpu_log - Print a debug message
*
* @g - The GPU.
* @log_mask - A mask defining when the print should happen. See enum
* %nvgpu_log_categories.
* @fmt - A format string (printf style).
* @arg... - Arguments for the format string.
*
* Print a message if the log_mask matches the enabled debugging.
*/
#define nvgpu_log(g, log_mask, fmt, arg...) \
__nvgpu_log_dbg(g, (u32)log_mask, __func__, __LINE__, fmt, ##arg)
/**
* nvgpu_err - Print an error
*
* @g - The GPU.
* @fmt - A format string (printf style).
* @arg... - Arguments for the format string.
*
* Uncondtionally print an error message.
*/
#define nvgpu_err(g, fmt, arg...) \
__nvgpu_log_msg(g, __func__, __LINE__, NVGPU_ERROR, fmt, ##arg)
/**
* nvgpu_err - Print a warning
*
* @g - The GPU.
* @fmt - A format string (printf style).
* @arg... - Arguments for the format string.
*
* Uncondtionally print a warming message.
*/
#define nvgpu_warn(g, fmt, arg...) \
__nvgpu_log_msg(g, __func__, __LINE__, NVGPU_WARNING, fmt, ##arg)
/**
* nvgpu_info - Print an info message
*
* @g - The GPU.
* @fmt - A format string (printf style).
* @arg... - Arguments for the format string.
*
* Unconditionally print an information message.
*/
#define nvgpu_info(g, fmt, arg...) \
__nvgpu_log_msg(g, __func__, __LINE__, NVGPU_INFO, fmt, ##arg)
/*
* Some convenience macros.
*/
#define nvgpu_log_fn(g, fmt, arg...) nvgpu_log(g, gpu_dbg_fn, fmt, ##arg)
#define nvgpu_log_info(g, fmt, arg...) nvgpu_log(g, gpu_dbg_info, fmt, ##arg)
/******************************************************************************
* The old legacy debugging API minus some parts that are unnecessary. *
* Please, please, please do not use this!!! This is still around to aid *
* transitioning to the new API. *
* *
* This changes up the print formats to be closer to the new APIs formats. *
* Also it removes the dev_warn() and dev_err() usage. Those arguments are *
* ignored now. *
******************************************************************************/
/*
* This exist for backwards compatibility with the old debug/logging API. If you
* want ftrace support use the new API!
*/
extern u64 nvgpu_dbg_mask;
#define gk20a_dbg(log_mask, fmt, arg...) \
do { \
if (((log_mask) & nvgpu_dbg_mask) != 0) \
__nvgpu_log_msg(NULL, __func__, __LINE__, \
NVGPU_DEBUG, fmt "\n", ##arg); \
} while (0)
/*
* Some convenience macros.
*/
#define gk20a_dbg_fn(fmt, arg...) gk20a_dbg(gpu_dbg_fn, fmt, ##arg)
#define gk20a_dbg_info(fmt, arg...) gk20a_dbg(gpu_dbg_info, fmt, ##arg)
#endif /* NVGPU_LOG_H */
