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drm/msm/sde: Skip heavy autorefresh checks when it's not enabled

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These heavy checks for seeing if autorefresh is enabled are unneeded
when the autorefresh config is disabled. These checks are performed on
every display commit and show up as using a significant amount of CPU
time in perf top. Skip them when it's unnecessary in order to improve
display rendering performance.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
This commit is contained in:
Sultan Alsawaf 2021-01-25 23:37:56 -08:00 committed by spakkkk
parent ee675ad54d
commit eb696e16c7
1 changed files with 9 additions and 1 deletions
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10
techpack/display/msm/sde/sde_encoder_phys_cmd.c
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@ -1181,12 +1181,20 @@ static void sde_encoder_phys_cmd_enable(struct sde_encoder_phys *phys_enc)
static bool sde_encoder_phys_cmd_is_autorefresh_enabled( static bool sde_encoder_phys_cmd_is_autorefresh_enabled(
struct sde_encoder_phys *phys_enc) struct sde_encoder_phys *phys_enc)
{ {
struct sde_encoder_phys_cmd *cmd_enc;
struct sde_hw_pingpong *hw_pp; struct sde_hw_pingpong *hw_pp;
struct sde_hw_intf *hw_intf; struct sde_hw_intf *hw_intf;
struct sde_hw_autorefresh cfg; struct sde_hw_autorefresh cfg;
int ret; int ret;
if (!phys_enc || !phys_enc->hw_pp || !phys_enc->hw_intf) if (!phys_enc)
return false;
cmd_enc = to_sde_encoder_phys_cmd(phys_enc);
if (!cmd_enc->autorefresh.cfg.enable)
return false;
if (!phys_enc->hw_pp || !phys_enc->hw_intf)
return false; return false;
if (!sde_encoder_phys_cmd_is_master(phys_enc)) if (!sde_encoder_phys_cmd_is_master(phys_enc))