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video: tegra: host: nvdla: avoid trace_printk use

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1. introduce TEGRA_NVDLA_TRACE_PRINTK Kconfig flag and set to 'n'
    by default
2. control trace_printk using the flag
3. prevents allocation of extra kernel memory with trace_printk
    presence

Bug 200350221

Change-Id: Iaa644f196fcc9a44f1b0744a55a0a0a1a585653d
Signed-off-by: Arvind M <am@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1672074
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
This commit is contained in:
Arvind M
2018-03-09 03:52:23 -08:00
committed by Laxman Dewangan
parent 596b964084
commit abd075040f
2 changed files with 17 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/video/tegra/host/nvdla/nvdla_debug.c
View File

@@ -717,8 +717,10 @@ void nvdla_debug_init(struct platform_device *pdev)
debugfs_create_u32("debug_mask", S_IRUGO | S_IWUSR, de,
&nvdla_dev->dbg_mask);
#ifdef CONFIG_TEGRA_NVDLA_TRACE_PRINTK
debugfs_create_u32("en_trace", S_IRUGO | S_IWUSR, de,
&nvdla_dev->en_trace);
#endif
debugfs_create_u32("submit_mode", S_IRUGO | S_IWUSR, de,
&nvdla_dev->submit_mode);

16
drivers/video/tegra/host/nvdla/nvdla_debug.h
View File

@@ -1,7 +1,7 @@
/*
* NVDLA debug utils header
*
* Copyright (c) 2016, NVIDIA Corporation. All rights reserved.
* Copyright (c) 2016 - 2018, NVIDIA Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -35,6 +35,7 @@ enum nvdla_dbg_categories {
debug_perf = BIT(5), /* for tracking perf impact */
};
#ifdef CONFIG_TEGRA_NVDLA_TRACE_PRINTK
#define nvdla_dbg(check_mask, pdev, format, arg...) \
do { \
struct nvhost_device_data *pdata = platform_get_drvdata(pdev); \
@@ -51,6 +52,19 @@ do { \
__func__, ##arg); \
} \
} while (0)
#else /* CONFIG_TEGRA_NVDLA_TRACE_PRINTK */
#define nvdla_dbg(check_mask, pdev, format, arg...) \
do { \
struct nvhost_device_data *pdata = platform_get_drvdata(pdev); \
struct nvdla_device *nvdla_dev = (struct nvdla_device *) \
pdata->private_data; \
if (unlikely((check_mask) & nvdla_dev->dbg_mask)) { \
pr_info("%s:%s: " format "\n", \
dev_name(&pdev->dev), \
__func__, ##arg); \
} \
} while (0)
#endif
#define nvdla_dbg_err(pdev, fmt, arg...) \
nvdla_dbg(debug_err, pdev, fmt, ##arg)