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/*
* 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 "dc.h"
#include "dc_dmub_srv.h"
#include "../dmub/dmub_srv.h"
#include "dm_helpers.h"
#define CTX dc_dmub_srv->ctx
#define DC_LOGGER CTX->logger
static void dc_dmub_srv_construct(struct dc_dmub_srv *dc_srv, struct dc *dc,
struct dmub_srv *dmub)
{
dc_srv->dmub = dmub;
dc_srv->ctx = dc->ctx;
}
struct dc_dmub_srv *dc_dmub_srv_create(struct dc *dc, struct dmub_srv *dmub)
{
struct dc_dmub_srv *dc_srv =
kzalloc(sizeof(struct dc_dmub_srv), GFP_KERNEL);
if (dc_srv == NULL) {
BREAK_TO_DEBUGGER();
return NULL;
}
dc_dmub_srv_construct(dc_srv, dc, dmub);
return dc_srv;
}
void dc_dmub_srv_destroy(struct dc_dmub_srv **dmub_srv)
{
if (*dmub_srv) {
kfree(*dmub_srv);
*dmub_srv = NULL;
}
}
void dc_dmub_srv_cmd_queue(struct dc_dmub_srv *dc_dmub_srv,
union dmub_rb_cmd *cmd)
{
struct dmub_srv *dmub = dc_dmub_srv->dmub;
struct dc_context *dc_ctx = dc_dmub_srv->ctx;
enum dmub_status status;
status = dmub_srv_cmd_queue(dmub, cmd);
if (status == DMUB_STATUS_OK)
return;
if (status != DMUB_STATUS_QUEUE_FULL)
goto error;
/* Execute and wait for queue to become empty again. */
dc_dmub_srv_cmd_execute(dc_dmub_srv);
dc_dmub_srv_wait_idle(dc_dmub_srv);
/* Requeue the command. */
status = dmub_srv_cmd_queue(dmub, cmd);
if (status == DMUB_STATUS_OK)
return;
error:
DC_ERROR("Error queuing DMUB command: status=%d\n", status);
}
void dc_dmub_srv_cmd_execute(struct dc_dmub_srv *dc_dmub_srv)
{
struct dmub_srv *dmub = dc_dmub_srv->dmub;
struct dc_context *dc_ctx = dc_dmub_srv->ctx;
enum dmub_status status;
status = dmub_srv_cmd_execute(dmub);
if (status != DMUB_STATUS_OK)
DC_ERROR("Error starting DMUB execution: status=%d\n", status);
}
void dc_dmub_srv_wait_idle(struct dc_dmub_srv *dc_dmub_srv)
{
struct dmub_srv *dmub = dc_dmub_srv->dmub;
struct dc_context *dc_ctx = dc_dmub_srv->ctx;
enum dmub_status status;
status = dmub_srv_wait_for_idle(dmub, 100000);
if (status != DMUB_STATUS_OK)
DC_ERROR("Error waiting for DMUB idle: status=%d\n", status);
}
void dc_dmub_srv_send_inbox0_cmd(struct dc_dmub_srv *dmub_srv,
union dmub_inbox0_data_register data)
{
struct dmub_srv *dmub = dmub_srv->dmub;
if (dmub->hw_funcs.send_inbox0_cmd)
dmub->hw_funcs.send_inbox0_cmd(dmub, data);
// TODO: Add wait command -- poll register for ACK
}
bool dc_dmub_srv_cmd_with_reply_data(struct dc_dmub_srv *dc_dmub_srv, union dmub_rb_cmd *cmd)
{
struct dmub_srv *dmub;
enum dmub_status status;
if (!dc_dmub_srv || !dc_dmub_srv->dmub)
return false;
dmub = dc_dmub_srv->dmub;
status = dmub_srv_cmd_with_reply_data(dmub, cmd);
if (status != DMUB_STATUS_OK) {
DC_LOG_DEBUG("No reply for DMUB command: status=%d\n", status);
return false;
}
return true;
}
void dc_dmub_srv_wait_phy_init(struct dc_dmub_srv *dc_dmub_srv)
{
struct dmub_srv *dmub = dc_dmub_srv->dmub;
struct dc_context *dc_ctx = dc_dmub_srv->ctx;
enum dmub_status status;
for (;;) {
/* Wait up to a second for PHY init. */
status = dmub_srv_wait_for_phy_init(dmub, 1000000);
if (status == DMUB_STATUS_OK)
/* Initialization OK */
break;
DC_ERROR("DMCUB PHY init failed: status=%d\n", status);
ASSERT(0);
if (status != DMUB_STATUS_TIMEOUT)
/*
* Server likely initialized or we don't have
* DMCUB HW support - this won't end.
*/
break;
/* Continue spinning so we don't hang the ASIC. */
}
}
bool dc_dmub_srv_notify_stream_mask(struct dc_dmub_srv *dc_dmub_srv,
unsigned int stream_mask)
{
struct dmub_srv *dmub;
const uint32_t timeout = 30;
if (!dc_dmub_srv || !dc_dmub_srv->dmub)
return false;
dmub = dc_dmub_srv->dmub;
return dmub_srv_send_gpint_command(
dmub, DMUB_GPINT__IDLE_OPT_NOTIFY_STREAM_MASK,
stream_mask, timeout) == DMUB_STATUS_OK;
}
bool dc_dmub_srv_get_dmub_outbox0_msg(const struct dc *dc, struct dmcub_trace_buf_entry *entry)
{
struct dmub_srv *dmub = dc->ctx->dmub_srv->dmub;
return dmub_srv_get_outbox0_msg(dmub, entry);
}
void dc_dmub_trace_event_control(struct dc *dc, bool enable)
{
dm_helpers_dmub_outbox_interrupt_control(dc->ctx, enable);
}
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