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| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-05-16 12:31:47 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-05-20 13:32:57 +0200 |
| commit | 05c452c115bffa12f78346723f0282a4264ed200 (patch) | |
| tree | fa4f69082136940db1c9926107ec3e76d1575fb3 /drivers/gpu/drm/armada | |
| parent | 45babef01f92f1c3ab3012dfb7e98ae51f1ebeab (diff) | |
| download | linux-05c452c115bffa12f78346723f0282a4264ed200.tar.gz linux-05c452c115bffa12f78346723f0282a4264ed200.tar.bz2 linux-05c452c115bffa12f78346723f0282a4264ed200.zip | |
drm: Remove users of drm_format_num_planes
drm_format_num_planes() is basically a lookup in the drm_format_info table
plus an access to the num_planes field of the appropriate entry.
Most drivers are using this function while having access to the entry
already, which means that we will perform an unnecessary lookup. Removing
the call to drm_format_num_planes is therefore more efficient.
Some drivers will not have access to that entry in the function, but in
this case the overhead is minimal (we just have to call drm_format_info()
to perform the lookup) and we can even avoid multiple, inefficient lookups
in some places that need multiple fields from the drm_format_info
structure.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5ffcec9d14a50ed538e37d565f546802452ee672.1558002671.git-series.maxime.ripard@bootlin.com
Diffstat (limited to 'drivers/gpu/drm/armada')
| -rw-r--r-- | drivers/gpu/drm/armada/armada_fb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/armada/armada_fb.c b/drivers/gpu/drm/armada/armada_fb.c index 058ac7d9920f..a2f6472eb482 100644 --- a/drivers/gpu/drm/armada/armada_fb.c +++ b/drivers/gpu/drm/armada/armada_fb.c @@ -87,6 +87,7 @@ struct armada_framebuffer *armada_framebuffer_create(struct drm_device *dev, struct drm_framebuffer *armada_fb_create(struct drm_device *dev, struct drm_file *dfile, const struct drm_mode_fb_cmd2 *mode) { + const struct drm_format_info *info = drm_get_format_info(dev, mode); struct armada_gem_object *obj; struct armada_framebuffer *dfb; int ret; @@ -97,7 +98,7 @@ struct drm_framebuffer *armada_fb_create(struct drm_device *dev, mode->pitches[2]); /* We can only handle a single plane at the moment */ - if (drm_format_num_planes(mode->pixel_format) > 1 && + if (info->num_planes > 1 && (mode->handles[0] != mode->handles[1] || mode->handles[0] != mode->handles[2])) { ret = -EINVAL; |