From ae04f394cf9a82a762a7152747a6bba5be6f5f53 Mon Sep 17 00:00:00 2001
From: Deepak Nibade <dnibade@nvidia.com>
Date: Thu, 19 Apr 2018 07:14:28 -0700
Subject: gpu: nvgpu: add HAL to set ppriv timeouts

Add new HAL gops.bus.set_ppriv_timeout_settings() to set platform specific
ppriv timeouts
Set this HAL for all supported GPUs for now

Jira NVGPUT-35

Change-Id: I88b438a7bf381d0216e0947a16cd267461d0e8d7
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1699314
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 drivers/gpu/nvgpu/gk20a/bus_gk20a.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'drivers/gpu/nvgpu/gk20a/bus_gk20a.c')

diff --git a/drivers/gpu/nvgpu/gk20a/bus_gk20a.c b/drivers/gpu/nvgpu/gk20a/bus_gk20a.c
index 81a5facc..ab75e8d7 100644
--- a/drivers/gpu/nvgpu/gk20a/bus_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/bus_gk20a.c
@@ -34,6 +34,9 @@
 #include <nvgpu/hw/gk20a/hw_mc_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_gr_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_timer_gk20a.h>
+#include <nvgpu/hw/gk20a/hw_pri_ringstation_sys_gk20a.h>
+#include <nvgpu/hw/gk20a/hw_pri_ringstation_gpc_gk20a.h>
+#include <nvgpu/hw/gk20a/hw_pri_ringstation_fbp_gk20a.h>
 
 void gk20a_bus_init_hw(struct gk20a *g)
 {
@@ -172,3 +175,14 @@ int gk20a_bus_bar1_bind(struct gk20a *g, struct nvgpu_mem *bar1_inst)
 
 	return 0;
 }
+
+void gk20a_bus_set_ppriv_timeout_settings(struct gk20a *g)
+{
+	/*
+	 * Bug 1340570: increase the clock timeout to avoid potential
+	 * operation failure at high gpcclk rate. Default values are 0x400.
+	 */
+	nvgpu_writel(g, pri_ringstation_sys_master_config_r(0x15), 0x800);
+	nvgpu_writel(g, pri_ringstation_gpc_master_config_r(0xa), 0x800);
+	nvgpu_writel(g, pri_ringstation_fbp_master_config_r(0x8), 0x800);
+}
-- 
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