diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2018-07-24 19:33:21 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-07-30 15:49:35 +0300 |
| commit | 63f4cc015b66dd265c2fd6e7c94be1b9a3b72267 (patch) | |
| tree | cc66779ca5c9f64b0e35021e1d868d50052d6f5d | |
| parent | cfc57a18a3c5dc95d06db80bddd30015162c57d2 (diff) | |
| download | linux-63f4cc015b66dd265c2fd6e7c94be1b9a3b72267.tar.xz | |
drm: Add drm_puts() to complement drm_printf()
Add drm_puts() for a much faster path to print constant strings
into a drm_printer object with memcpy and friends. This can
have seconds off of really large outputs such as GPU dumps.
If the drm_printer object supports a custom puts function then
use that otherwise fall back to the slower legacy printf call.
v2: Add documentation for drm_puts() per Daniel Vetter
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
[robclark fix minor htmldocs warning]
Signed-off-by: Rob Clark <robdclark@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/drm_print.c | 17 | ||||
| -rw-r--r-- | include/drm/drm_print.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c index 03d1f98e5ac7..01d4e5583b5d 100644 --- a/drivers/gpu/drm/drm_print.c +++ b/drivers/gpu/drm/drm_print.c @@ -123,6 +123,23 @@ void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf) EXPORT_SYMBOL(__drm_printfn_debug); /** + * drm_puts - print a const string to a &drm_printer stream + * @p: the &drm printer + * @str: const string + * + * Allow &drm_printer types that have a constant string + * option to use it. + */ +void drm_puts(struct drm_printer *p, const char *str) +{ + if (p->puts) + p->puts(p, str); + else + drm_printf(p, "%s", str); +} +EXPORT_SYMBOL(drm_puts); + +/** * drm_printf - print to a &drm_printer stream * @p: the &drm_printer * @f: format string diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h index e7570f93a21f..f2f42bb87ef2 100644 --- a/include/drm/drm_print.h +++ b/include/drm/drm_print.h @@ -69,6 +69,7 @@ struct drm_printer { /* private: */ void (*printfn)(struct drm_printer *p, struct va_format *vaf); + void (*puts)(struct drm_printer *p, const char *str); void *arg; const char *prefix; }; @@ -80,6 +81,7 @@ void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf); __printf(2, 3) void drm_printf(struct drm_printer *p, const char *f, ...); +void drm_puts(struct drm_printer *p, const char *str); __printf(2, 0) /** |