Evolution-X-Devices/kernel_nothing_sm7325
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drm/msm/sde: Remove register write debug logging

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Writing to registers is frequent enough that there is a measurably
significant portion of CPU time spent on checking the debug mask for
whether to log. Remove the check and logging call altogether to
eliminate the overhead.

Change-Id: Iea73c5cd106edc96659fa1a1591be6bc8cb4bf88
This commit is contained in:
Danny Lin
2021-04-11 13:47:04 +02:00
committed by Wiktor Rudzki
parent da82365a47
commit 70b09fa2ef
1 changed files with 0 additions and 6 deletions
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6
techpack/display/msm/sde/sde_hw_util.c
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@@ -73,13 +73,7 @@ void sde_reg_write(struct sde_hw_blk_reg_map *c,
u32 val,
const char *name)
{
/* don't need to mutex protect this */
if (c->log_mask & sde_hw_util_log_mask)
SDE_DEBUG_DRIVER("[%s:0x%X] <= 0x%X\n",
name, c->blk_off + reg_off, val);
SDE_EVT32_REGWRITE(c->blk_off + reg_off, val, GET_REG_BLK_ID(c));
writel_relaxed(val, c->base_off + c->blk_off + reg_off);
SDE_REG_LOG(GET_REG_BLK_ID(c), val, c->blk_off + reg_off);
}
int sde_reg_read(struct sde_hw_blk_reg_map *c, u32 reg_off)