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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);
dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
}
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);
dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
}
}
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);
dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
}
}
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_is_restore_required(struct dc_dmub_srv *dc_dmub_srv)
{
struct dmub_srv *dmub;
struct dc_context *dc_ctx;
union dmub_fw_boot_status boot_status;
enum dmub_status status;
if (!dc_dmub_srv || !dc_dmub_srv->dmub)
return false;
dmub = dc_dmub_srv->dmub;
dc_ctx = dc_dmub_srv->ctx;
status = dmub_srv_get_fw_boot_status(dmub, &boot_status);
if (status != DMUB_STATUS_OK) {
DC_ERROR("Error querying DMUB boot status: error=%d\n", status);
return false;
}
return boot_status.bits.restore_required;
}
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);
}
bool dc_dmub_srv_get_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv, struct dmub_diagnostic_data *diag_data)
{
if (!dc_dmub_srv || !dc_dmub_srv->dmub || !diag_data)
return false;
return dmub_srv_get_diagnostic_data(dc_dmub_srv->dmub, diag_data);
}
void dc_dmub_srv_log_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv)
{
struct dmub_diagnostic_data diag_data = {0};
if (!dc_dmub_srv || !dc_dmub_srv->dmub) {
DC_LOG_ERROR("%s: invalid parameters.", __func__);
return;
}
if (!dc_dmub_srv_get_diagnostic_data(dc_dmub_srv, &diag_data)) {
DC_LOG_ERROR("%s: dc_dmub_srv_get_diagnostic_data failed.", __func__);
return;
}
DC_LOG_DEBUG(
"DMCUB STATE\n"
" dmcub_version : %08x\n"
" scratch [0] : %08x\n"
" scratch [1] : %08x\n"
" scratch [2] : %08x\n"
" scratch [3] : %08x\n"
" scratch [4] : %08x\n"
" scratch [5] : %08x\n"
" scratch [6] : %08x\n"
" scratch [7] : %08x\n"
" scratch [8] : %08x\n"
" scratch [9] : %08x\n"
" scratch [10] : %08x\n"
" scratch [11] : %08x\n"
" scratch [12] : %08x\n"
" scratch [13] : %08x\n"
" scratch [14] : %08x\n"
" scratch [15] : %08x\n"
" pc : %08x\n"
" unk_fault_addr : %08x\n"
" inst_fault_addr : %08x\n"
" data_fault_addr : %08x\n"
" inbox1_rptr : %08x\n"
" inbox1_wptr : %08x\n"
" inbox1_size : %08x\n"
" inbox0_rptr : %08x\n"
" inbox0_wptr : %08x\n"
" inbox0_size : %08x\n"
" is_enabled : %d\n"
" is_soft_reset : %d\n"
" is_secure_reset : %d\n"
" is_traceport_en : %d\n"
" is_cw0_en : %d\n"
" is_cw6_en : %d\n",
diag_data.dmcub_version,
diag_data.scratch[0],
diag_data.scratch[1],
diag_data.scratch[2],
diag_data.scratch[3],
diag_data.scratch[4],
diag_data.scratch[5],
diag_data.scratch[6],
diag_data.scratch[7],
diag_data.scratch[8],
diag_data.scratch[9],
diag_data.scratch[10],
diag_data.scratch[11],
diag_data.scratch[12],
diag_data.scratch[13],
diag_data.scratch[14],
diag_data.scratch[15],
diag_data.pc,
diag_data.undefined_address_fault_addr,
diag_data.inst_fetch_fault_addr,
diag_data.data_write_fault_addr,
diag_data.inbox1_rptr,
diag_data.inbox1_wptr,
diag_data.inbox1_size,
diag_data.inbox0_rptr,
diag_data.inbox0_wptr,
diag_data.inbox0_size,
diag_data.is_dmcub_enabled,
diag_data.is_dmcub_soft_reset,
diag_data.is_dmcub_secure_reset,
diag_data.is_traceport_en,
diag_data.is_cw0_enabled,
diag_data.is_cw6_enabled);
}
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