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gpu: nvgpu: Disable trace_printk use by default

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trace_printk() does an extra stringify operation before calling
do_trace_printk(). The string ends up unused. This has an impact
to kernel even if we never end up using trace_printk().

Disable use of trace_printk() and introduce a Kconfig option for
re-enabling it.

Change-Id: I2e1014f5231f2089d7dc3cb2539e3eb5f4d58361
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1295298
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Terje Bergstrom
2017-01-27 08:38:55 -08:00
committed by mobile promotions
parent 707ea45e0f
commit d6ff5ef649
5 changed files with 18 additions and 12 deletions
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3
drivers/gpu/nvgpu/gk20a/debug_gk20a.c
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@@ -417,9 +417,10 @@ void gk20a_debug_init(struct device *dev, const char *debugfs_symlink)
debugfs_create_bool("disable_syncpoints", S_IRUGO|S_IWUSR,
platform->debugfs, &platform->disable_syncpoints);
#if defined(GK20A_DEBUG)
debugfs_create_u32("dbg_mask", S_IRUGO|S_IWUSR,
platform->debugfs, &gk20a_dbg_mask);
#ifdef CONFIG_GK20A_TRACE_PRINTK
debugfs_create_u32("dbg_ftrace", S_IRUGO|S_IWUSR,
platform->debugfs, &gk20a_dbg_ftrace);
#endif