blob: 85a0170be5449158e03c3b997b4cb788b54320e4 [file] [log] [blame]
/*
* Copyright 2017 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.
*
*/
/*
* dc_helper.c
*
* Created on: Aug 30, 2016
* Author: agrodzov
*/
#include <linux/delay.h>
#include "dm_services.h"
#include <stdarg.h>
#include "dc.h"
#include "dc_dmub_srv.h"
static inline void submit_dmub_read_modify_write(
struct dc_reg_helper_state *offload,
const struct dc_context *ctx)
{
struct dmub_rb_cmd_read_modify_write *cmd_buf = &offload->cmd_data.read_modify_write;
bool gather = false;
offload->should_burst_write =
(offload->same_addr_count == (DMUB_READ_MODIFY_WRITE_SEQ__MAX - 1));
cmd_buf->header.payload_bytes =
sizeof(struct dmub_cmd_read_modify_write_sequence) * offload->reg_seq_count;
gather = ctx->dmub_srv->reg_helper_offload.gather_in_progress;
ctx->dmub_srv->reg_helper_offload.gather_in_progress = false;
dc_dmub_srv_cmd_queue(ctx->dmub_srv, &offload->cmd_data);
ctx->dmub_srv->reg_helper_offload.gather_in_progress = gather;
memset(cmd_buf, 0, sizeof(*cmd_buf));
offload->reg_seq_count = 0;
offload->same_addr_count = 0;
}
static inline void submit_dmub_burst_write(
struct dc_reg_helper_state *offload,
const struct dc_context *ctx)
{
struct dmub_rb_cmd_burst_write *cmd_buf = &offload->cmd_data.burst_write;
bool gather = false;
cmd_buf->header.payload_bytes =
sizeof(uint32_t) * offload->reg_seq_count;
gather = ctx->dmub_srv->reg_helper_offload.gather_in_progress;
ctx->dmub_srv->reg_helper_offload.gather_in_progress = false;
dc_dmub_srv_cmd_queue(ctx->dmub_srv, &offload->cmd_data);
ctx->dmub_srv->reg_helper_offload.gather_in_progress = gather;
memset(cmd_buf, 0, sizeof(*cmd_buf));
offload->reg_seq_count = 0;
}
static inline void submit_dmub_reg_wait(
struct dc_reg_helper_state *offload,
const struct dc_context *ctx)
{
struct dmub_rb_cmd_reg_wait *cmd_buf = &offload->cmd_data.reg_wait;
bool gather = false;
gather = ctx->dmub_srv->reg_helper_offload.gather_in_progress;
ctx->dmub_srv->reg_helper_offload.gather_in_progress = false;
dc_dmub_srv_cmd_queue(ctx->dmub_srv, &offload->cmd_data);
memset(cmd_buf, 0, sizeof(*cmd_buf));
offload->reg_seq_count = 0;
ctx->dmub_srv->reg_helper_offload.gather_in_progress = gather;
}
struct dc_reg_value_masks {
uint32_t value;
uint32_t mask;
};
struct dc_reg_sequence {
uint32_t addr;
struct dc_reg_value_masks value_masks;
};
static inline void set_reg_field_value_masks(
struct dc_reg_value_masks *field_value_mask,
uint32_t value,
uint32_t mask,
uint8_t shift)
{
ASSERT(mask != 0);
field_value_mask->value = (field_value_mask->value & ~mask) | (mask & (value << shift));
field_value_mask->mask = field_value_mask->mask | mask;
}
static void set_reg_field_values(struct dc_reg_value_masks *field_value_mask,
uint32_t addr, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1,
va_list ap)
{
uint32_t shift, mask, field_value;
int i = 1;
/* gather all bits value/mask getting updated in this register */
set_reg_field_value_masks(field_value_mask,
field_value1, mask1, shift1);
while (i < n) {
shift = va_arg(ap, uint32_t);
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t);
set_reg_field_value_masks(field_value_mask,
field_value, mask, shift);
i++;
}
}
static void dmub_flush_buffer_execute(
struct dc_reg_helper_state *offload,
const struct dc_context *ctx)
{
submit_dmub_read_modify_write(offload, ctx);
dc_dmub_srv_cmd_execute(ctx->dmub_srv);
}
static void dmub_flush_burst_write_buffer_execute(
struct dc_reg_helper_state *offload,
const struct dc_context *ctx)
{
submit_dmub_burst_write(offload, ctx);
dc_dmub_srv_cmd_execute(ctx->dmub_srv);
}
static bool dmub_reg_value_burst_set_pack(const struct dc_context *ctx, uint32_t addr,
uint32_t reg_val)
{
struct dc_reg_helper_state *offload = &ctx->dmub_srv->reg_helper_offload;
struct dmub_rb_cmd_burst_write *cmd_buf = &offload->cmd_data.burst_write;
/* flush command if buffer is full */
if (offload->reg_seq_count == DMUB_BURST_WRITE_VALUES__MAX)
dmub_flush_burst_write_buffer_execute(offload, ctx);
if (offload->cmd_data.cmd_common.header.type == DMUB_CMD__REG_SEQ_BURST_WRITE &&
addr != cmd_buf->addr) {
dmub_flush_burst_write_buffer_execute(offload, ctx);
return false;
}
cmd_buf->header.type = DMUB_CMD__REG_SEQ_BURST_WRITE;
cmd_buf->header.sub_type = 0;
cmd_buf->addr = addr;
cmd_buf->write_values[offload->reg_seq_count] = reg_val;
offload->reg_seq_count++;
return true;
}
static uint32_t dmub_reg_value_pack(const struct dc_context *ctx, uint32_t addr,
struct dc_reg_value_masks *field_value_mask)
{
struct dc_reg_helper_state *offload = &ctx->dmub_srv->reg_helper_offload;
struct dmub_rb_cmd_read_modify_write *cmd_buf = &offload->cmd_data.read_modify_write;
struct dmub_cmd_read_modify_write_sequence *seq;
/* flush command if buffer is full */
if (offload->cmd_data.cmd_common.header.type != DMUB_CMD__REG_SEQ_BURST_WRITE &&
offload->reg_seq_count == DMUB_READ_MODIFY_WRITE_SEQ__MAX)
dmub_flush_buffer_execute(offload, ctx);
if (offload->should_burst_write) {
if (dmub_reg_value_burst_set_pack(ctx, addr, field_value_mask->value))
return field_value_mask->value;
else
offload->should_burst_write = false;
}
/* pack commands */
cmd_buf->header.type = DMUB_CMD__REG_SEQ_READ_MODIFY_WRITE;
cmd_buf->header.sub_type = 0;
seq = &cmd_buf->seq[offload->reg_seq_count];
if (offload->reg_seq_count) {
if (cmd_buf->seq[offload->reg_seq_count - 1].addr == addr)
offload->same_addr_count++;
else
offload->same_addr_count = 0;
}
seq->addr = addr;
seq->modify_mask = field_value_mask->mask;
seq->modify_value = field_value_mask->value;
offload->reg_seq_count++;
return field_value_mask->value;
}
static void dmub_reg_wait_done_pack(const struct dc_context *ctx, uint32_t addr,
uint32_t mask, uint32_t shift, uint32_t condition_value, uint32_t time_out_us)
{
struct dc_reg_helper_state *offload = &ctx->dmub_srv->reg_helper_offload;
struct dmub_rb_cmd_reg_wait *cmd_buf = &offload->cmd_data.reg_wait;
cmd_buf->header.type = DMUB_CMD__REG_REG_WAIT;
cmd_buf->header.sub_type = 0;
cmd_buf->reg_wait.addr = addr;
cmd_buf->reg_wait.condition_field_value = mask & (condition_value << shift);
cmd_buf->reg_wait.mask = mask;
cmd_buf->reg_wait.time_out_us = time_out_us;
}
uint32_t generic_reg_update_ex(const struct dc_context *ctx,
uint32_t addr, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1,
...)
{
struct dc_reg_value_masks field_value_mask = {0};
uint32_t reg_val;
va_list ap;
va_start(ap, field_value1);
set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
field_value1, ap);
va_end(ap);
if (ctx->dmub_srv &&
ctx->dmub_srv->reg_helper_offload.gather_in_progress)
return dmub_reg_value_pack(ctx, addr, &field_value_mask);
/* todo: return void so we can decouple code running in driver from register states */
/* mmio write directly */
reg_val = dm_read_reg(ctx, addr);
reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
dm_write_reg(ctx, addr, reg_val);
return reg_val;
}
uint32_t generic_reg_set_ex(const struct dc_context *ctx,
uint32_t addr, uint32_t reg_val, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1,
...)
{
struct dc_reg_value_masks field_value_mask = {0};
va_list ap;
va_start(ap, field_value1);
set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
field_value1, ap);
va_end(ap);
/* mmio write directly */
reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
if (ctx->dmub_srv &&
ctx->dmub_srv->reg_helper_offload.gather_in_progress) {
return dmub_reg_value_burst_set_pack(ctx, addr, reg_val);
/* todo: return void so we can decouple code running in driver from register states */
}
dm_write_reg(ctx, addr, reg_val);
return reg_val;
}
uint32_t dm_read_reg_func(
const struct dc_context *ctx,
uint32_t address,
const char *func_name)
{
uint32_t value;
#ifdef DM_CHECK_ADDR_0
if (address == 0) {
DC_ERR("invalid register read; address = 0\n");
return 0;
}
#endif
if (ctx->dmub_srv &&
ctx->dmub_srv->reg_helper_offload.gather_in_progress &&
!ctx->dmub_srv->reg_helper_offload.should_burst_write) {
ASSERT(false);
return 0;
}
value = cgs_read_register(ctx->cgs_device, address);
trace_amdgpu_dc_rreg(&ctx->perf_trace->read_count, address, value);
return value;
}
uint32_t generic_reg_get(const struct dc_context *ctx, uint32_t addr,
uint8_t shift, uint32_t mask, uint32_t *field_value)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value = get_reg_field_value_ex(reg_val, mask, shift);
return reg_val;
}
uint32_t generic_reg_get2(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
return reg_val;
}
uint32_t generic_reg_get3(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
return reg_val;
}
uint32_t generic_reg_get4(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
return reg_val;
}
uint32_t generic_reg_get5(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4,
uint8_t shift5, uint32_t mask5, uint32_t *field_value5)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
*field_value5 = get_reg_field_value_ex(reg_val, mask5, shift5);
return reg_val;
}
uint32_t generic_reg_get6(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4,
uint8_t shift5, uint32_t mask5, uint32_t *field_value5,
uint8_t shift6, uint32_t mask6, uint32_t *field_value6)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
*field_value5 = get_reg_field_value_ex(reg_val, mask5, shift5);
*field_value6 = get_reg_field_value_ex(reg_val, mask6, shift6);
return reg_val;
}
uint32_t generic_reg_get7(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4,
uint8_t shift5, uint32_t mask5, uint32_t *field_value5,
uint8_t shift6, uint32_t mask6, uint32_t *field_value6,
uint8_t shift7, uint32_t mask7, uint32_t *field_value7)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
*field_value5 = get_reg_field_value_ex(reg_val, mask5, shift5);
*field_value6 = get_reg_field_value_ex(reg_val, mask6, shift6);
*field_value7 = get_reg_field_value_ex(reg_val, mask7, shift7);
return reg_val;
}
uint32_t generic_reg_get8(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4,
uint8_t shift5, uint32_t mask5, uint32_t *field_value5,
uint8_t shift6, uint32_t mask6, uint32_t *field_value6,
uint8_t shift7, uint32_t mask7, uint32_t *field_value7,
uint8_t shift8, uint32_t mask8, uint32_t *field_value8)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
*field_value5 = get_reg_field_value_ex(reg_val, mask5, shift5);
*field_value6 = get_reg_field_value_ex(reg_val, mask6, shift6);
*field_value7 = get_reg_field_value_ex(reg_val, mask7, shift7);
*field_value8 = get_reg_field_value_ex(reg_val, mask8, shift8);
return reg_val;
}
/* note: va version of this is pretty bad idea, since there is a output parameter pass by pointer
* compiler won't be able to check for size match and is prone to stack corruption type of bugs
uint32_t generic_reg_get(const struct dc_context *ctx,
uint32_t addr, int n, ...)
{
uint32_t shift, mask;
uint32_t *field_value;
uint32_t reg_val;
int i = 0;
reg_val = dm_read_reg(ctx, addr);
va_list ap;
va_start(ap, n);
while (i < n) {
shift = va_arg(ap, uint32_t);
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t *);
*field_value = get_reg_field_value_ex(reg_val, mask, shift);
i++;
}
va_end(ap);
return reg_val;
}
*/
void generic_reg_wait(const struct dc_context *ctx,
uint32_t addr, uint32_t shift, uint32_t mask, uint32_t condition_value,
unsigned int delay_between_poll_us, unsigned int time_out_num_tries,
const char *func_name, int line)
{
uint32_t field_value;
uint32_t reg_val;
int i;
if (ctx->dmub_srv &&
ctx->dmub_srv->reg_helper_offload.gather_in_progress) {
dmub_reg_wait_done_pack(ctx, addr, mask, shift, condition_value,
delay_between_poll_us * time_out_num_tries);
return;
}
/*
* Something is terribly wrong if time out is > 3000ms.
* 3000ms is the maximum time needed for SMU to pass values back.
* This value comes from experiments.
*
*/
ASSERT(delay_between_poll_us * time_out_num_tries <= 3000000);
for (i = 0; i <= time_out_num_tries; i++) {
if (i) {
if (delay_between_poll_us >= 1000)
msleep(delay_between_poll_us/1000);
else if (delay_between_poll_us > 0)
udelay(delay_between_poll_us);
}
reg_val = dm_read_reg(ctx, addr);
field_value = get_reg_field_value_ex(reg_val, mask, shift);
if (field_value == condition_value) {
if (i * delay_between_poll_us > 1000 &&
!IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
DC_LOG_DC("REG_WAIT taking a while: %dms in %s line:%d\n",
delay_between_poll_us * i / 1000,
func_name, line);
return;
}
}
DC_LOG_WARNING("REG_WAIT timeout %dus * %d tries - %s line:%d\n",
delay_between_poll_us, time_out_num_tries,
func_name, line);
if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
BREAK_TO_DEBUGGER();
}
void generic_write_indirect_reg(const struct dc_context *ctx,
uint32_t addr_index, uint32_t addr_data,
uint32_t index, uint32_t data)
{
dm_write_reg(ctx, addr_index, index);
dm_write_reg(ctx, addr_data, data);
}
uint32_t generic_read_indirect_reg(const struct dc_context *ctx,
uint32_t addr_index, uint32_t addr_data,
uint32_t index)
{
uint32_t value = 0;
// when reg read, there should not be any offload.
if (ctx->dmub_srv &&
ctx->dmub_srv->reg_helper_offload.gather_in_progress) {
ASSERT(false);
}
dm_write_reg(ctx, addr_index, index);
value = dm_read_reg(ctx, addr_data);
return value;
}
uint32_t generic_indirect_reg_get(const struct dc_context *ctx,
uint32_t addr_index, uint32_t addr_data,
uint32_t index, int n,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
...)
{
uint32_t shift, mask, *field_value;
uint32_t value = 0;
int i = 1;
va_list ap;
va_start(ap, field_value1);
value = generic_read_indirect_reg(ctx, addr_index, addr_data, index);
*field_value1 = get_reg_field_value_ex(value, mask1, shift1);
while (i < n) {
shift = va_arg(ap, uint32_t);
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t *);
*field_value = get_reg_field_value_ex(value, mask, shift);
i++;
}
va_end(ap);
return value;
}
uint32_t generic_indirect_reg_update_ex(const struct dc_context *ctx,
uint32_t addr_index, uint32_t addr_data,
uint32_t index, uint32_t reg_val, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1,
...)
{
uint32_t shift, mask, field_value;
int i = 1;
va_list ap;
va_start(ap, field_value1);
reg_val = set_reg_field_value_ex(reg_val, field_value1, mask1, shift1);
while (i < n) {
shift = va_arg(ap, uint32_t);
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t);
reg_val = set_reg_field_value_ex(reg_val, field_value, mask, shift);
i++;
}
generic_write_indirect_reg(ctx, addr_index, addr_data, index, reg_val);
va_end(ap);
return reg_val;
}
void reg_sequence_start_gather(const struct dc_context *ctx)
{
/* if reg sequence is supported and enabled, set flag to
* indicate we want to have REG_SET, REG_UPDATE macro build
* reg sequence command buffer rather than MMIO directly.
*/
if (ctx->dmub_srv && ctx->dc->debug.dmub_offload_enabled) {
struct dc_reg_helper_state *offload =
&ctx->dmub_srv->reg_helper_offload;
/* caller sequence mismatch. need to debug caller. offload will not work!!! */
ASSERT(!offload->gather_in_progress);
offload->gather_in_progress = true;
}
}
void reg_sequence_start_execute(const struct dc_context *ctx)
{
struct dc_reg_helper_state *offload;
if (!ctx->dmub_srv)
return;
offload = &ctx->dmub_srv->reg_helper_offload;
if (offload && offload->gather_in_progress) {
offload->gather_in_progress = false;
offload->should_burst_write = false;
switch (offload->cmd_data.cmd_common.header.type) {
case DMUB_CMD__REG_SEQ_READ_MODIFY_WRITE:
submit_dmub_read_modify_write(offload, ctx);
break;
case DMUB_CMD__REG_REG_WAIT:
submit_dmub_reg_wait(offload, ctx);
break;
case DMUB_CMD__REG_SEQ_BURST_WRITE:
submit_dmub_burst_write(offload, ctx);
break;
default:
return;
}
dc_dmub_srv_cmd_execute(ctx->dmub_srv);
}
}
void reg_sequence_wait_done(const struct dc_context *ctx)
{
/* callback to DM to poll for last submission done*/
struct dc_reg_helper_state *offload;
if (!ctx->dmub_srv)
return;
offload = &ctx->dmub_srv->reg_helper_offload;
if (offload &&
ctx->dc->debug.dmub_offload_enabled &&
!ctx->dc->debug.dmcub_emulation) {
dc_dmub_srv_wait_idle(ctx->dmub_srv);
}
}