diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c new file mode 100644 index 0000000000..2aa0e01a68 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c @@ -0,0 +1,69 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#include "dmub_hw_lock_mgr.h" +#include "dc_dmub_srv.h" +#include "dc_types.h" +#include "core_types.h" + +void dmub_hw_lock_mgr_cmd(struct dc_dmub_srv *dmub_srv, + bool lock, + union dmub_hw_lock_flags *hw_locks, + struct dmub_hw_lock_inst_flags *inst_flags) +{ + union dmub_rb_cmd cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.lock_hw.header.type = DMUB_CMD__HW_LOCK; + cmd.lock_hw.header.sub_type = 0; + cmd.lock_hw.header.payload_bytes = sizeof(struct dmub_cmd_lock_hw_data); + cmd.lock_hw.lock_hw_data.client = HW_LOCK_CLIENT_DRIVER; + cmd.lock_hw.lock_hw_data.lock = lock; + cmd.lock_hw.lock_hw_data.hw_locks.u8All = hw_locks->u8All; + memcpy(&cmd.lock_hw.lock_hw_data.inst_flags, inst_flags, sizeof(struct dmub_hw_lock_inst_flags)); + + if (!lock) + cmd.lock_hw.lock_hw_data.should_release = 1; + + dm_execute_dmub_cmd(dmub_srv->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT); +} + +void dmub_hw_lock_mgr_inbox0_cmd(struct dc_dmub_srv *dmub_srv, + union dmub_inbox0_cmd_lock_hw hw_lock_cmd) +{ + union dmub_inbox0_data_register data = { 0 }; + + data.inbox0_cmd_lock_hw = hw_lock_cmd; + dc_dmub_srv_clear_inbox0_ack(dmub_srv); + dc_dmub_srv_send_inbox0_cmd(dmub_srv, data); + dc_dmub_srv_wait_for_inbox0_ack(dmub_srv); +} + +bool should_use_dmub_lock(struct dc_link *link) +{ + if (link->psr_settings.psr_version == DC_PSR_VERSION_SU_1) + return true; + return false; +} |