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1e95144194
MISRA 21.2 prohibits naming functions with double underscore. So, rename __nvgpu_log_dbg() and __nvgpu_log_msg() to nvgpu_log_dbg_impl() and nvgpu_log_msg_impl(), respectively. JIRA NVGPU-3368 Change-Id: I4548820f6772875088d095539b6da92051e08653 Signed-off-by: Philip Elcan <pelcan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2118043 GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/*
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* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <nvgpu/log.h>
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#include <nvgpu/gk20a.h>
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#include "platform_gk20a.h"
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#include "os_linux.h"
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/*
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* Define a length for log buffers. This is the buffer that the 'fmt, ...' part
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* of __nvgpu_do_log_print() prints into. This buffer lives on the stack so it
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* needs to not be overly sized since we have limited kernel stack space. But at
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* the same time we don't want it to be restrictive either.
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*/
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#define LOG_BUFFER_LENGTH 160
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/*
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* Annoying quirk of Linux: this has to be a string literal since the printk()
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* function and friends use the preprocessor to concatenate stuff to the start
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* of this string when printing.
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*/
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#define LOG_FMT "nvgpu: %s %33s:%-4d [%s] %s\n"
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static const char *log_types[] = {
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"ERR",
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"WRN",
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"DBG",
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"INFO",
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};
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bool nvgpu_log_mask_enabled(struct gk20a *g, u64 log_mask)
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{
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return (g->log_mask & log_mask) != 0ULL;
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}
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static inline const char *nvgpu_log_name(struct gk20a *g)
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{
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return dev_name(dev_from_gk20a(g));
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}
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#ifdef CONFIG_GK20A_TRACE_PRINTK
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static void __nvgpu_trace_printk_log(u32 trace, const char *gpu_name,
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const char *func_name, int line,
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const char *log_type, const char *log)
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{
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trace_printk(LOG_FMT, gpu_name, func_name, line, log_type, log);
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}
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#endif
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static void __nvgpu_really_print_log(u32 trace, const char *gpu_name,
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const char *func_name, int line,
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enum nvgpu_log_type type, const char *log)
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{
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const char *name = gpu_name ? gpu_name : "";
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const char *log_type = log_types[type];
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#ifdef CONFIG_GK20A_TRACE_PRINTK
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if (trace)
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return __nvgpu_trace_printk_log(trace, name, func_name,
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line, log_type, log);
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#endif
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switch (type) {
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case NVGPU_DEBUG:
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/*
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* We could use pr_debug() here but we control debug enablement
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* separately from the Linux kernel. Perhaps this is a bug in
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* nvgpu.
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*/
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pr_info(LOG_FMT, name, func_name, line, log_type, log);
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break;
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case NVGPU_INFO:
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pr_info(LOG_FMT, name, func_name, line, log_type, log);
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break;
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case NVGPU_WARNING:
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pr_warn(LOG_FMT, name, func_name, line, log_type, log);
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break;
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case NVGPU_ERROR:
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pr_err(LOG_FMT, name, func_name, line, log_type, log);
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break;
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}
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}
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__attribute__((format (printf, 5, 6)))
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void nvgpu_log_msg_impl(struct gk20a *g, const char *func_name, int line,
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enum nvgpu_log_type type, const char *fmt, ...)
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{
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char log[LOG_BUFFER_LENGTH];
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va_list args;
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va_start(args, fmt);
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(void) vsnprintf(log, LOG_BUFFER_LENGTH, fmt, args);
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va_end(args);
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__nvgpu_really_print_log(0, g ? nvgpu_log_name(g) : "",
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func_name, line, type, log);
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}
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__attribute__((format (printf, 5, 6)))
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void nvgpu_log_dbg_impl(struct gk20a *g, u64 log_mask,
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const char *func_name, int line,
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const char *fmt, ...)
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{
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char log[LOG_BUFFER_LENGTH];
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va_list args;
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if ((log_mask & g->log_mask) == 0)
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return;
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va_start(args, fmt);
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(void) vsnprintf(log, LOG_BUFFER_LENGTH, fmt, args);
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va_end(args);
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__nvgpu_really_print_log(g->log_trace, nvgpu_log_name(g),
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func_name, line, NVGPU_DEBUG, log);
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}
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