From e14fdcd8f1f4125da697433b1744b1e4e4f15b09 Mon Sep 17 00:00:00 2001
From: Vaibhav Kachore <vkachore@nvidia.com>
Date: Fri, 6 Jul 2018 15:10:03 +0530
Subject: gpu: nvgpu: enable HWPM Mode-E context switch

- Write new pm mode to context buffer header. Ucode use
this mode to enable mode-e context switch. This is Mode-B
context switch of PMs with Mode-E streamout on one context.
If this mode is set, Ucode makes sure that Mode-E pipe
(perfmons, routers, pma) is idle before it context switches PMs.
- This allows us to collect counters in a secure way
(i.e. on context basis) with stream out.

Bug 2106999

Change-Id: I5a7435f09d1bf053ca428e538b0a57f3a175ac37
Signed-off-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1760366
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 drivers/gpu/nvgpu/gv100/gr_gv100.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/gpu/nvgpu/gv100/gr_gv100.c')

diff --git a/drivers/gpu/nvgpu/gv100/gr_gv100.c b/drivers/gpu/nvgpu/gv100/gr_gv100.c
index 680bcba3..b1b1cee6 100644
--- a/drivers/gpu/nvgpu/gv100/gr_gv100.c
+++ b/drivers/gpu/nvgpu/gv100/gr_gv100.c
@@ -38,6 +38,7 @@
 #include <nvgpu/hw/gv100/hw_proj_gv100.h>
 #include <nvgpu/hw/gv100/hw_fuse_gv100.h>
 #include <nvgpu/hw/gv100/hw_top_gv100.h>
+#include <nvgpu/hw/gv100/hw_ctxsw_prog_gv100.h>
 
 
 /*
@@ -453,3 +454,8 @@ void gr_gv100_split_fbpa_broadcast_addr(struct gk20a *g, u32 addr,
 		}
 	}
 }
+
+u32 gr_gv100_get_hw_accessor_stream_out_mode()
+{
+	return ctxsw_prog_main_image_pm_mode_stream_out_ctxsw_f();
+}
-- 
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