From: Tom St Denis <tom.stdenis@amd.com>
Date: Tue, 12 Sep 2017 12:29:06 -0400
Subject: drm/amd/powerplay: lock grbm_gfx index when changing instance
Git-commit: c9232d9ee85fade8a2020efe9f3bf64cdbbc6347
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
@@ -746,6 +746,7 @@ int smu7_enable_didt_config(struct pp_hw
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++) {
@@ -785,6 +786,7 @@ int smu7_enable_didt_config(struct pp_hw
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);
}