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drm/amd/powerplay: lock grbm_gfx index when changing instance

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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>
This commit is contained in:
Tom St Denis 2017-09-12 12:29:06 -04:00 committed by Alex Deucher
parent 9f8ccae9d6
commit c9232d9ee8
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_powertune.c
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@ -746,6 +746,7 @@ 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++) {
@ -785,6 +786,7 @@ 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);
}