samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: avoid BW_INDICATION write if BW does not change

Selaa lähdekoodia 
This change avoids writing of BW_INDICATION registers on each
frame, instead it updates only when there is a change in bandwidth.

Change-Id: Iae32ceb065d2e49e81c2febbbac5508a624d090e
Signed-off-by: Narendra Muppalla <quic_nmuppall@quicinc.com>
This commit is contained in:
Narendra Muppalla
2022-02-02 14:26:05 -08:00
vanhempi 27c4708570
commit f95fc01a9b
3 muutettua tiedostoa jossa 51 lisäystä ja 5 poistoa
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12
msm/sde_rsc.c
Näytä tiedosto

@@ -1039,7 +1039,6 @@ int sde_rsc_client_trigger_vote(struct sde_rsc_client *caller_client,
{
int rc = 0, rsc_index, i;
struct sde_rsc_priv *rsc;
bool bw_increase = false;
if (caller_client && caller_client->rsc_index >= MAX_RSC_COUNT) {
pr_err("invalid rsc index\n");
@@ -1051,6 +1050,9 @@ int sde_rsc_client_trigger_vote(struct sde_rsc_client *caller_client,
if (!rsc)
return -EINVAL;
if (rsc->bwi_update == BW_NO_CHANGE && !delta_vote && rsc->version >= SDE_RSC_REV_5)
return 0;
pr_debug("client:%s trigger bw delta vote:%d\n",
caller_client ? caller_client->name : "unknown", delta_vote);
@@ -1060,10 +1062,11 @@ int sde_rsc_client_trigger_vote(struct sde_rsc_client *caller_client,
(rsc->current_state == SDE_RSC_CLK_STATE))
goto end;
rsc->bwi_update = BW_HIGH_TO_LOW;
for (i = 0; i < SDE_POWER_HANDLE_DBUS_ID_MAX && delta_vote; i++) {
if (rsc->bw_config.new_ab_vote[i] > rsc->bw_config.ab_vote[i] ||
rsc->bw_config.new_ib_vote[i] > rsc->bw_config.ib_vote[i])
bw_increase = true;
rsc->bwi_update = BW_LOW_TO_HIGH;
rsc->bw_config.ab_vote[i] = rsc->bw_config.new_ab_vote[i];
rsc->bw_config.ib_vote[i] = rsc->bw_config.new_ib_vote[i];
@@ -1092,10 +1095,13 @@ int sde_rsc_client_trigger_vote(struct sde_rsc_client *caller_client,
rpmh_write_sleep_and_wake(rsc->rpmh_dev);
}
if (rsc->version >= SDE_RSC_REV_5 && !delta_vote)
rsc->bwi_update = BW_NO_CHANGE;
if (rsc->hw_ops.bwi_status &&
(rsc->current_state == SDE_RSC_CMD_STATE ||
rsc->current_state == SDE_RSC_VID_STATE))
rsc->hw_ops.bwi_status(rsc, bw_increase);
rsc->hw_ops.bwi_status(rsc);
else if (rsc->hw_ops.tcs_use_ok)
rsc->hw_ops.tcs_use_ok(rsc);