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From 44efa8f4260952a167a4e90f3525ad5cbf0a9f14 Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@amd.com>
Date: Tue, 12 Sep 2017 12:29:06 -0400
Subject: [PATCH 0949/4131] drm/amd/powerplay: lock grbm_gfx index when
changing instance
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
index d1000d2..db6ca11 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
@@ -789,6 +789,7 @@ int smu7_enable_didt_config(struct pp_hwmgr *hwmgr)
PP_CAP(PHM_PlatformCaps_TCPRamping)) {
cgs_enter_safe_mode(hwmgr->device, true);
+ cgs_lock_grbm_idx(hwmgr->device, true);
value = 0;
value2 = cgs_read_register(hwmgr->device, mmGRBM_GFX_INDEX);
for (count = 0; count < num_se; count++) {
@@ -828,6 +829,7 @@ int smu7_enable_didt_config(struct pp_hwmgr *hwmgr)
PP_ASSERT_WITH_CODE((0 == result),
"Failed to enable DPM DIDT.", return result);
}
+ cgs_lock_grbm_idx(hwmgr->device, false);
cgs_enter_safe_mode(hwmgr->device, false);
}
--
2.7.4
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