diff options
| 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/msm/disp/mdp5/mdp5_smp.c | |
| parent | 45babef01f92f1c3ab3012dfb7e98ae51f1ebeab (diff) | |
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/msm/disp/mdp5/mdp5_smp.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c index 6153514db04c..72ab8d89efa4 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c @@ -127,13 +127,14 @@ uint32_t mdp5_smp_calculate(struct mdp5_smp *smp, const struct mdp_format *format, u32 width, bool hdecim) { + const struct drm_format_info *info = drm_format_info(format->base.pixel_format); struct mdp5_kms *mdp5_kms = get_kms(smp); int rev = mdp5_cfg_get_hw_rev(mdp5_kms->cfg); int i, hsub, nplanes, nlines; u32 fmt = format->base.pixel_format; uint32_t blkcfg = 0; - nplanes = drm_format_num_planes(fmt); + nplanes = info->num_planes; hsub = drm_format_horz_chroma_subsampling(fmt); /* different if BWC (compressed framebuffer?) enabled: */ |