lkml.org 
[lkml]   [2022]   [Jun]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 4/4] drm/etnaviv: export loadavg via perfmon
Date
Make it possible to access the sub-GPU component load value from
user space with the perfmon infrastructure.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
---
drivers/gpu/drm/etnaviv/etnaviv_perfmon.c | 79 +++++++++++++++++++++++
1 file changed, 79 insertions(+)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c
index bafdfe49c1d8..d65d9af3a74a 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c
@@ -120,6 +120,19 @@ static u32 hi_total_idle_cycle_read(struct etnaviv_gpu *gpu,
return gpu_read(gpu, reg);
}

+static u32 load_read(struct etnaviv_gpu *gpu,
+ const struct etnaviv_pm_domain *domain,
+ const struct etnaviv_pm_signal *signal)
+{
+ u32 load;
+
+ spin_lock_bh(&gpu->loadavg_spinlock);
+ load = gpu->loadavg_percentage[signal->data];
+ spin_unlock_bh(&gpu->loadavg_spinlock);
+
+ return load;
+}
+
static const struct etnaviv_pm_domain doms_3d[] = {
{
.name = "HI",
@@ -419,6 +432,72 @@ static const struct etnaviv_pm_domain doms_3d[] = {
&perf_reg_read
}
}
+ },
+ {
+ .name = "LOAD",
+ .nr_signals = 12,
+ .signal = (const struct etnaviv_pm_signal[]) {
+ {
+ "FE",
+ 0,
+ &load_read
+ },
+ {
+ "DE",
+ 1,
+ &load_read
+ },
+ {
+ "PE",
+ 2,
+ &load_read
+ },
+ {
+ "SH",
+ 3,
+ &load_read
+ },
+ {
+ "PA",
+ 4,
+ &load_read
+ },
+ {
+ "SE",
+ 5,
+ &load_read
+ },
+ {
+ "RA",
+ 6,
+ &load_read
+ },
+ {
+ "TX",
+ 7,
+ &load_read
+ },
+ {
+ "VG",
+ 8,
+ &load_read
+ },
+ {
+ "IM",
+ 9,
+ &load_read
+ },
+ {
+ "FP",
+ 10,
+ &load_read
+ },
+ {
+ "TS",
+ 11,
+ &load_read
+ }
+ }
}
};

--
2.36.1
\
 
 \ /
  Last update: 2022-06-21 09:23    [W:0.131 / U:0.732 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site