From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 9 Mar 2018 14:29:26 +0100
Subject: drm/etnaviv: bump HW job limit to 4
Git-commit: 4ed75c3e525598ff1aa6aed09c419c73a4efd2f2
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The current limit of 2 leads to some GPU idle times, as the usual
IRQ latency leads to up to 3 jobs getting signaled at once with some
standard workloads.

A larger HW job limit might lead to slightly worse QoS, but we accept
that to not sacrifice GPU throughput in the common case.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/etnaviv/etnaviv_sched.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/etnaviv/etnaviv_sched.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_sched.c
@@ -24,7 +24,7 @@
 
 static int etnaviv_job_hang_limit = 0;
 module_param_named(job_hang_limit, etnaviv_job_hang_limit, int , 0444);
-static int etnaviv_hw_jobs_limit = 2;
+static int etnaviv_hw_jobs_limit = 4;
 module_param_named(hw_job_limit, etnaviv_hw_jobs_limit, int , 0444);
 
 static struct dma_fence *