forked from Qortal/Brooklyn
151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#include "dc.h"
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#include "dc_dmub_srv.h"
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#include "../dmub/dmub_srv.h"
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static void dc_dmub_srv_construct(struct dc_dmub_srv *dc_srv, struct dc *dc,
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struct dmub_srv *dmub)
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{
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dc_srv->dmub = dmub;
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dc_srv->ctx = dc->ctx;
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}
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struct dc_dmub_srv *dc_dmub_srv_create(struct dc *dc, struct dmub_srv *dmub)
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{
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struct dc_dmub_srv *dc_srv =
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kzalloc(sizeof(struct dc_dmub_srv), GFP_KERNEL);
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if (dc_srv == NULL) {
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BREAK_TO_DEBUGGER();
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return NULL;
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}
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dc_dmub_srv_construct(dc_srv, dc, dmub);
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return dc_srv;
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}
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void dc_dmub_srv_destroy(struct dc_dmub_srv **dmub_srv)
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{
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if (*dmub_srv) {
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kfree(*dmub_srv);
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*dmub_srv = NULL;
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}
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}
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void dc_dmub_srv_cmd_queue(struct dc_dmub_srv *dc_dmub_srv,
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union dmub_rb_cmd *cmd)
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{
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struct dmub_srv *dmub = dc_dmub_srv->dmub;
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struct dc_context *dc_ctx = dc_dmub_srv->ctx;
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enum dmub_status status;
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status = dmub_srv_cmd_queue(dmub, cmd);
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if (status == DMUB_STATUS_OK)
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return;
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if (status != DMUB_STATUS_QUEUE_FULL)
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goto error;
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/* Execute and wait for queue to become empty again. */
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dc_dmub_srv_cmd_execute(dc_dmub_srv);
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dc_dmub_srv_wait_idle(dc_dmub_srv);
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/* Requeue the command. */
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status = dmub_srv_cmd_queue(dmub, cmd);
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if (status == DMUB_STATUS_OK)
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return;
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error:
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DC_ERROR("Error queuing DMUB command: status=%d\n", status);
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}
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void dc_dmub_srv_cmd_execute(struct dc_dmub_srv *dc_dmub_srv)
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{
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struct dmub_srv *dmub = dc_dmub_srv->dmub;
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struct dc_context *dc_ctx = dc_dmub_srv->ctx;
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enum dmub_status status;
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status = dmub_srv_cmd_execute(dmub);
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if (status != DMUB_STATUS_OK)
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DC_ERROR("Error starting DMUB execution: status=%d\n", status);
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}
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void dc_dmub_srv_wait_idle(struct dc_dmub_srv *dc_dmub_srv)
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{
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struct dmub_srv *dmub = dc_dmub_srv->dmub;
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struct dc_context *dc_ctx = dc_dmub_srv->ctx;
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enum dmub_status status;
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status = dmub_srv_wait_for_idle(dmub, 100000);
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if (status != DMUB_STATUS_OK)
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DC_ERROR("Error waiting for DMUB idle: status=%d\n", status);
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}
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void dc_dmub_srv_wait_phy_init(struct dc_dmub_srv *dc_dmub_srv)
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{
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struct dmub_srv *dmub = dc_dmub_srv->dmub;
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struct dc_context *dc_ctx = dc_dmub_srv->ctx;
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enum dmub_status status;
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for (;;) {
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/* Wait up to a second for PHY init. */
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status = dmub_srv_wait_for_phy_init(dmub, 1000000);
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if (status == DMUB_STATUS_OK)
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/* Initialization OK */
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break;
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DC_ERROR("DMCUB PHY init failed: status=%d\n", status);
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ASSERT(0);
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if (status != DMUB_STATUS_TIMEOUT)
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/*
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* Server likely initialized or we don't have
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* DMCUB HW support - this won't end.
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*/
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break;
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/* Continue spinning so we don't hang the ASIC. */
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}
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}
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bool dc_dmub_srv_notify_stream_mask(struct dc_dmub_srv *dc_dmub_srv,
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unsigned int stream_mask)
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{
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struct dmub_srv *dmub;
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const uint32_t timeout = 30;
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if (!dc_dmub_srv || !dc_dmub_srv->dmub)
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return false;
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dmub = dc_dmub_srv->dmub;
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return dmub_srv_send_gpint_command(
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dmub, DMUB_GPINT__IDLE_OPT_NOTIFY_STREAM_MASK,
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stream_mask, timeout) == DMUB_STATUS_OK;
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}
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