/*
* Copyright 2012-16 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 "core_types.h"
#include "link_encoder.h"
#include "dce_dmcu.h"
#include "dm_services.h"
#include "reg_helper.h"
#include "fixed31_32.h"
#include "dc.h"
#define TO_DCE_DMCU(dmcu)\
container_of(dmcu, struct dce_dmcu, base)
#define REG(reg) \
(dmcu_dce->regs->reg)
#undef FN
#define FN(reg_name, field_name) \
dmcu_dce->dmcu_shift->field_name, dmcu_dce->dmcu_mask->field_name
#define CTX \
dmcu_dce->base.ctx
/* PSR related commands */
#define PSR_ENABLE 0x20
#define PSR_EXIT 0x21
#define PSR_SET 0x23
#define PSR_SET_WAITLOOP 0x31
#define MCP_INIT_DMCU 0x88
#define MCP_INIT_IRAM 0x89
#define MCP_SYNC_PHY_LOCK 0x90
#define MCP_SYNC_PHY_UNLOCK 0x91
#define MCP_BL_SET_PWM_FRAC 0x6A /* Enable or disable Fractional PWM */
#define CRC_WIN_NOTIFY 0x92
#define CRC_STOP_UPDATE 0x93
#define MCP_SEND_EDID_CEA 0xA0
#define EDID_CEA_CMD_ACK 1
#define EDID_CEA_CMD_NACK 2
#define MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK 0x00000001L
// PSP FW version
#define mmMP0_SMN_C2PMSG_58 0x1607A
//Register access policy version
#define mmMP0_SMN_C2PMSG_91 0x1609B
static const uint32_t abm_gain_stepsize = 0x0060;
static bool dce_dmcu_init(struct dmcu *dmcu)
{
// Do nothing
return true;
}
static bool dce_dmcu_load_iram(struct dmcu *dmcu,
unsigned int start_offset,
const char *src,
unsigned int bytes)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int count = 0;
/* Enable write access to IRAM */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 1,
IRAM_WR_ADDR_AUTO_INC, 1);
REG_WAIT(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
REG_WRITE(DMCU_IRAM_WR_CTRL, start_offset);
for (count = 0; count < bytes; count++)
REG_WRITE(DMCU_IRAM_WR_DATA, src[count]);
/* Disable write access to IRAM to allow dynamic sleep state */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 0,
IRAM_WR_ADDR_AUTO_INC, 0);
return true;
}
static void dce_get_dmcu_psr_state(struct dmcu *dmcu, enum dc_psr_state *state)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
uint32_t psr_state_offset = 0xf0;
/* Enable write access to IRAM */
REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 1);
REG_WAIT(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
/* Write address to IRAM_RD_ADDR in DMCU_IRAM_RD_CTRL */
REG_WRITE(DMCU_IRAM_RD_CTRL, psr_state_offset);
/* Read data from IRAM_RD_DATA in DMCU_IRAM_RD_DATA*/
*state = (enum dc_psr_state)REG_READ(DMCU_IRAM_RD_DATA);
/* Disable write access to IRAM after finished using IRAM
* in order to allow dynamic sleep state
*/
REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 0);
}
static void dce_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
unsigned int retryCount;
enum dc_psr_state state = PSR_STATE0;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* setDMCUParam_Cmd */
if (enable)
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
PSR_ENABLE);
else
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
PSR_EXIT);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
if (wait == true) {
for (retryCount = 0; retryCount <= 100; retryCount++) {
dce_get_dmcu_psr_state(dmcu, &state);
if (enable) {
if (state != PSR_STATE0)
break;
} else {
if (state == PSR_STATE0)
break;
}
udelay(10);
}
}
}
static bool dce_dmcu_setup_psr(struct dmcu *dmcu,
struct dc_link *link,
struct psr_context *psr_context)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
union dce_dmcu_psr_config_data_reg1 masterCmdData1;
union dce_dmcu_psr_config_data_reg2 masterCmdData2;
union dce_dmcu_psr_config_data_reg3 masterCmdData3;
link->link_enc->funcs->psr_program_dp_dphy_fast_training(link->link_enc,
psr_context->psrExitLinkTrainingRequired);
/* Enable static screen interrupts for PSR supported display */
/* Disable the interrupt coming from other displays. */
REG_UPDATE_4(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN1_INT_TO_UC_EN, 0,
STATIC_SCREEN2_INT_TO_UC_EN, 0,
STATIC_SCREEN3_INT_TO_UC_EN, 0,
STATIC_SCREEN4_INT_TO_UC_EN, 0);
switch (psr_context->controllerId) {
/* Driver uses case 1 for unconfigured */
case 1:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN1_INT_TO_UC_EN, 1);
break;
case 2:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN2_INT_TO_UC_EN, 1);
break;
case 3:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN3_INT_TO_UC_EN, 1);
break;
case 4:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN4_INT_TO_UC_EN, 1);
break;
case 5:
/* CZ/NL only has 4 CRTC!!
* really valid.
* There is no interrupt enable mask for these instances.
*/
break;
case 6:
/* CZ/NL only has 4 CRTC!!
* These are here because they are defined in HW regspec,
* but not really valid. There is no interrupt enable mask
* for these instances.
*/
break;
default:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN1_INT_TO_UC_EN, 1);
break;
}
link->link_enc->funcs->psr_program_secondary_packet(link->link_enc,
psr_context->sdpTransmitLineNumDeadline);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* setDMCUParam_PSRHostConfigData */
masterCmdData1.u32All = 0;
masterCmdData1.bits.timehyst_frames = psr_context->timehyst_frames;
masterCmdData1.bits.hyst_lines = psr_context->hyst_lines;
masterCmdData1.bits.rfb_update_auto_en =
psr_context->rfb_update_auto_en;
masterCmdData1.bits.dp_port_num = psr_context->transmitterId;
masterCmdData1.bits.dcp_sel = psr_context->controllerId;
masterCmdData1.bits.phy_type = psr_context->phyType;
masterCmdData1.bits.frame_cap_ind =
psr_context->psrFrameCaptureIndicationReq;
masterCmdData1.bits.aux_chan = psr_context->channel;
masterCmdData1.bits.aux_repeat = psr_context->aux_repeats;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1),
masterCmdData1.u32All);
masterCmdData2.u32All = 0;
masterCmdData2.bits.dig_fe = psr_context->engineId;
masterCmdData2.bits.dig_be = psr_context->transmitterId;
masterCmdData2.bits.skip_wait_for_pll_lock =
psr_context->skipPsrWaitForPllLock;
masterCmdData2.bits.frame_delay = psr_context->frame_delay;
masterCmdData2.bits.smu_phy_id = psr_context->smuPhyId;
masterCmdData2.bits.num_of_controllers =
psr_context->numberOfControllers;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG2),
masterCmdData2.u32All);
masterCmdData3.u32All = 0;
masterCmdData3.bits.psr_level = psr_context->psr_level.u32all;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG3),
masterCmdData3.u32All);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG,
MASTER_COMM_CMD_REG_BYTE0, PSR_SET);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
return true;
}
static bool dce_is_dmcu_initialized(struct dmcu *dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_uc_reset;
/* microcontroller is not running */
REG_GET(DMCU_STATUS, UC_IN_RESET, &dmcu_uc_reset);
/* DMCU is not running */
if (dmcu_uc_reset)
return false;
return true;
}
static void dce_psr_wait_loop(
struct dmcu *dmcu,
unsigned int wait_loop_number)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
union dce_dmcu_psr_config_data_wait_loop_reg1 masterCmdData1;
if (dmcu->cached_wait_loop_number == wait_loop_number)
return;
/* DMCU is not running */
if (!dce_is_dmcu_initialized(dmcu))
return;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
masterCmdData1.u32 = 0;
masterCmdData1.bits.wait_loop = wait_loop_number;
dmcu->cached_wait_loop_number = wait_loop_number;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1), masterCmdData1.u32);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, PSR_SET_WAITLOOP);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
}
static void dce_get_psr_wait_loop(
struct dmcu *dmcu, unsigned int *psr_wait_loop_number)
{
*psr_wait_loop_number = dmcu->cached_wait_loop_number;
return;
}
static void dcn10_get_dmcu_version(struct dmcu *dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
uint32_t dmcu_version_offset = 0xf1;
/* Enable write access to IRAM */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 1,
IRAM_RD_ADDR_AUTO_INC, 1);
REG_WAIT(DMU_MEM_PWR_CNTL, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
/* Write address to IRAM_RD_ADDR and read from DATA register */
REG_WRITE(DMCU_IRAM_RD_CTRL, dmcu_version_offset);
dmcu->dmcu_version.interface_version = REG_READ(DMCU_IRAM_RD_DATA);
dmcu->dmcu_version.abm_version = REG_READ(DMCU_IRAM_RD_DATA);
dmcu->dmcu_version.psr_version = REG_READ(DMCU_IRAM_RD_DATA);
dmcu->dmcu_version.build_version = ((REG_READ(DMCU_IRAM_RD_DATA) << 8) |
REG_READ(DMCU_IRAM_RD_DATA));
/* Disable write access to IRAM to allow dynamic sleep state */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 0,
IRAM_RD_ADDR_AUTO_INC, 0);
}
static void dcn10_dmcu_enable_fractional_pwm(struct dmcu *dmcu,
uint32_t fractional_pwm)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
/* Wait until microcontroller is ready to process interrupt */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 100, 800);
/* Set PWM fractional enable/disable */
REG_WRITE(MASTER_COMM_DATA_REG1, fractional_pwm);
/* Set command to enable or disable fractional PWM microcontroller */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
MCP_BL_SET_PWM_FRAC);
/* Notify microcontroller of new command */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* Ensure command has been executed before continuing */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 100, 800);
}
static bool dcn10_dmcu_init(struct dmcu *dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
const struct dc_config *config = &dmcu->ctx->dc->config;
bool status = false;
struct dc_context *ctx = dmcu->ctx;
unsigned int i;
// 5 4 3 2 1 0
// F E D C B A - bit 0 is A, bit 5 is F
unsigned int tx_interrupt_mask = 0;
PERF_TRACE();
/* Definition of DC_DMCU_SCRATCH
* 0 : firmare not loaded
* 1 : PSP load DMCU FW but not initialized
* 2 : Firmware already initialized
*/
dmcu->dmcu_state = REG_READ(DC_DMCU_SCRATCH);
for (i = 0; i < ctx->dc->link_count; i++) {
if (ctx->dc->links[i]->link_enc->features.flags.bits.DP_IS_USB_C) {
if (ctx->dc->links[i]->link_enc->transmitter >= TRANSMITTER_UNIPHY_A &&
ctx->dc->links[i]->link_enc->transmitter <= TRANSMITTER_UNIPHY_F) {
tx_interrupt_mask |= 1 << ctx->dc->links[i]->link_enc->transmitter;
}
}
}
switch (dmcu->dmcu_state) {
case DMCU_UNLOADED:
status = false;
break;
case DMCU_LOADED_UNINITIALIZED:
/* Wait until microcontroller is ready to process interrupt */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 100, 800);
/* Set initialized ramping boundary value */
REG_WRITE(MASTER_COMM_DATA_REG1, 0xFFFF);
/* Set backlight ramping stepsize */
REG_WRITE(MASTER_COMM_DATA_REG2, abm_gain_stepsize);
REG_WRITE(MASTER_COMM_DATA_REG3, tx_interrupt_mask);
/* Set command to initialize microcontroller */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
MCP_INIT_DMCU);
/* Notify microcontroller of new command */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* Ensure command has been executed before continuing */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 100, 800);
// Check state is initialized
dmcu->dmcu_state = REG_READ(DC_DMCU_SCRATCH);
// If microcontroller is not in running state, fail
if (dmcu->dmcu_state == DMCU_RUNNING) {
/* Retrieve and cache the DMCU firmware version. */
dcn10_get_dmcu_version(dmcu);
/* Initialize DMCU to use fractional PWM or not */
dcn10_dmcu_enable_fractional_pwm(dmcu,
(config->disable_fractional_pwm == false) ? 1 : 0);
status = true;
} else {
status = false;
}
break;
case DMCU_RUNNING:
status = true;
break;
default:
status = false;
break;
}
PERF_TRACE();
return status;
}
static bool dcn21_dmcu_init(struct dmcu *dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
uint32_t dmcub_psp_version = REG_READ(DMCUB_SCRATCH15);
if (dmcu->auto_load_dmcu && dmcub_psp_version == 0) {
return false;
}
return dcn10_dmcu_init(dmcu);
}
static bool dcn10_dmcu_load_iram(struct dmcu *dmcu,
unsigned int start_offset,
const char *src,
unsigned int bytes)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int count = 0;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
/* Enable write access to IRAM */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 1,
IRAM_WR_ADDR_AUTO_INC, 1);
REG_WAIT(DMU_MEM_PWR_CNTL, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
REG_WRITE(DMCU_IRAM_WR_CTRL, start_offset);
for (count = 0; count < bytes; count++)
REG_WRITE(DMCU_IRAM_WR_DATA, src[count]);
/* Disable write access to IRAM to allow dynamic sleep state */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 0,
IRAM_WR_ADDR_AUTO_INC, 0);
/* Wait until microcontroller is ready to process interrupt */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 100, 800);
/* Set command to signal IRAM is loaded and to initialize IRAM */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
MCP_INIT_IRAM);
/* Notify microcontroller of new command */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* Ensure command has been executed before continuing */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 100, 800);
return true;
}
static void dcn10_get_dmcu_psr_state(struct dmcu *dmcu, enum dc_psr_state *state)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
uint32_t psr_state_offset = 0xf0;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return;
/* Enable write access to IRAM */
REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 1);
REG_WAIT(DMU_MEM_PWR_CNTL, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
/* Write address to IRAM_RD_ADDR in DMCU_IRAM_RD_CTRL */
REG_WRITE(DMCU_IRAM_RD_CTRL, psr_state_offset);
/* Read data from IRAM_RD_DATA in DMCU_IRAM_RD_DATA*/
*state = (enum dc_psr_state)REG_READ(DMCU_IRAM_RD_DATA);
/* Disable write access to IRAM after finished using IRAM
* in order to allow dynamic sleep state
*/
REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 0);
}
static void dcn10_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
unsigned int retryCount;
enum dc_psr_state state = PSR_STATE0;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* setDMCUParam_Cmd */
if (enable)
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
PSR_ENABLE);
else
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
PSR_EXIT);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* Below loops 1000 x 500us = 500 ms.
* Exit PSR may need to wait 1-2 frames to power up. Timeout after at
* least a few frames. Should never hit the max retry assert below.
*/
if (wait == true) {
for (retryCount = 0; retryCount <= 1000; retryCount++) {
dcn10_get_dmcu_psr_state(dmcu, &state);
if (enable) {
if (state != PSR_STATE0)
break;
} else {
if (state == PSR_STATE0)
break;
}
/* must *not* be fsleep - this can be called from high irq levels */
udelay(500);
}
/* assert if max retry hit */
if (retryCount >= 1000)
ASSERT(0);
}
}
static bool dcn10_dmcu_setup_psr(struct dmcu *dmcu,
struct dc_link *link,
struct psr_context *psr_context)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
union dce_dmcu_psr_config_data_reg1 masterCmdData1;
union dce_dmcu_psr_config_data_reg2 masterCmdData2;
union dce_dmcu_psr_config_data_reg3 masterCmdData3;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
link->link_enc->funcs->psr_program_dp_dphy_fast_training(link->link_enc,
psr_context->psrExitLinkTrainingRequired);
/* Enable static screen interrupts for PSR supported display */
/* Disable the interrupt coming from other displays. */
REG_UPDATE_4(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN1_INT_TO_UC_EN, 0,
STATIC_SCREEN2_INT_TO_UC_EN, 0,
STATIC_SCREEN3_INT_TO_UC_EN, 0,
STATIC_SCREEN4_INT_TO_UC_EN, 0);
switch (psr_context->controllerId) {
/* Driver uses case 1 for unconfigured */
case 1:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN1_INT_TO_UC_EN, 1);
break;
case 2:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN2_INT_TO_UC_EN, 1);
break;
case 3:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN3_INT_TO_UC_EN, 1);
break;
case 4:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN4_INT_TO_UC_EN, 1);
break;
case 5:
/* CZ/NL only has 4 CRTC!!
* really valid.
* There is no interrupt enable mask for these instances.
*/
break;
case 6:
/* CZ/NL only has 4 CRTC!!
* These are here because they are defined in HW regspec,
* but not really valid. There is no interrupt enable mask
* for these instances.
*/
break;
default:
REG_UPDATE(DMCU_INTERRUPT_TO_UC_EN_MASK,
STATIC_SCREEN1_INT_TO_UC_EN, 1);
break;
}
link->link_enc->funcs->psr_program_secondary_packet(link->link_enc,
psr_context->sdpTransmitLineNumDeadline);
if (psr_context->allow_smu_optimizations)
REG_UPDATE(SMU_INTERRUPT_CONTROL, DC_SMU_INT_ENABLE, 1);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* setDMCUParam_PSRHostConfigData */
masterCmdData1.u32All = 0;
masterCmdData1.bits.timehyst_frames = psr_context->timehyst_frames;
masterCmdData1.bits.hyst_lines = psr_context->hyst_lines;
masterCmdData1.bits.rfb_update_auto_en =
psr_context->rfb_update_auto_en;
masterCmdData1.bits.dp_port_num = psr_context->transmitterId;
masterCmdData1.bits.dcp_sel = psr_context->controllerId;
masterCmdData1.bits.phy_type = psr_context->phyType;
masterCmdData1.bits.frame_cap_ind =
psr_context->psrFrameCaptureIndicationReq;
masterCmdData1.bits.aux_chan = psr_context->channel;
masterCmdData1.bits.aux_repeat = psr_context->aux_repeats;
masterCmdData1.bits.allow_smu_optimizations = psr_context->allow_smu_optimizations;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1),
masterCmdData1.u32All);
masterCmdData2.u32All = 0;
masterCmdData2.bits.dig_fe = psr_context->engineId;
masterCmdData2.bits.dig_be = psr_context->transmitterId;
masterCmdData2.bits.skip_wait_for_pll_lock =
psr_context->skipPsrWaitForPllLock;
masterCmdData2.bits.frame_delay = psr_context->frame_delay;
masterCmdData2.bits.smu_phy_id = psr_context->smuPhyId;
masterCmdData2.bits.num_of_controllers =
psr_context->numberOfControllers;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG2),
masterCmdData2.u32All);
masterCmdData3.u32All = 0;
masterCmdData3.bits.psr_level = psr_context->psr_level.u32all;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG3),
masterCmdData3.u32All);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG,
MASTER_COMM_CMD_REG_BYTE0, PSR_SET);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
return true;
}
static void dcn10_psr_wait_loop(
struct dmcu *dmcu,
unsigned int wait_loop_number)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
union dce_dmcu_psr_config_data_wait_loop_reg1 masterCmdData1;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return;
if (wait_loop_number != 0) {
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
masterCmdData1.u32 = 0;
masterCmdData1.bits.wait_loop = wait_loop_number;
dmcu->cached_wait_loop_number = wait_loop_number;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1), masterCmdData1.u32);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, PSR_SET_WAITLOOP);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
}
}
static void dcn10_get_psr_wait_loop(
struct dmcu *dmcu, unsigned int *psr_wait_loop_number)
{
*psr_wait_loop_number = dmcu->cached_wait_loop_number;
return;
}
static bool dcn10_is_dmcu_initialized(struct dmcu *dmcu)
{
/* microcontroller is not running */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
return true;
}
static bool dcn20_lock_phy(struct dmcu *dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_SYNC_PHY_LOCK);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
return true;
}
static bool dcn20_unlock_phy(struct dmcu *dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_SYNC_PHY_UNLOCK);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
return true;
}
static bool dcn10_send_edid_cea(struct dmcu *dmcu,
int offset,
int total_length,
uint8_t *data,
int length)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
uint32_t header, data1, data2;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
if (length > 8 || length <= 0)
return false;
header = ((uint32_t)offset & 0xFFFF) << 16 | (total_length & 0xFFFF);
data1 = (((uint32_t)data[0]) << 24) | (((uint32_t)data[1]) << 16) |
(((uint32_t)data[2]) << 8) | ((uint32_t)data[3]);
data2 = (((uint32_t)data[4]) << 24) | (((uint32_t)data[5]) << 16) |
(((uint32_t)data[6]) << 8) | ((uint32_t)data[7]);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_SEND_EDID_CEA);
REG_WRITE(MASTER_COMM_DATA_REG1, header);
REG_WRITE(MASTER_COMM_DATA_REG2, data1);
REG_WRITE(MASTER_COMM_DATA_REG3, data2);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000);
return true;
}
static bool dcn10_get_scp_results(struct dmcu *dmcu,
uint32_t *cmd,
uint32_t *data1,
uint32_t *data2,
uint32_t *data3)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return false;
*cmd = REG_READ(SLAVE_COMM_CMD_REG);
*data1 = REG_READ(SLAVE_COMM_DATA_REG1);
*data2 = REG_READ(SLAVE_COMM_DATA_REG2);
*data3 = REG_READ(SLAVE_COMM_DATA_REG3);
/* clear SCP interrupt */
REG_UPDATE(SLAVE_COMM_CNTL_REG, SLAVE_COMM_INTERRUPT, 0);
return true;
}
static bool dcn10_recv_amd_vsdb(struct dmcu *dmcu,
int *version,
int *min_frame_rate,
int *max_frame_rate)
{
uint32_t data[4];
int cmd, ack, len;
if (!dcn10_get_scp_results(dmcu, &data[0], &data[1], &data[2], &data[3]))
return false;
cmd = data[0] & 0x3FF;
len = (data[0] >> 10) & 0x3F;
ack = data[1];
if (cmd != MCP_SEND_EDID_CEA || ack != EDID_CEA_CMD_ACK || len != 12)
return false;
if ((data[2] & 0xFF)) {
*version = (data[2] >> 8) & 0xFF;
*min_frame_rate = (data[3] >> 16) & 0xFFFF;
*max_frame_rate = data[3] & 0xFFFF;
return true;
}
return false;
}
static bool dcn10_recv_edid_cea_ack(struct dmcu *dmcu, int *offset)
{
uint32_t data[4];
int cmd, ack;
if (!dcn10_get_scp_results(dmcu,
&data[0], &data[1], &data[2], &data[3]))
return false;
cmd = data[0] & 0x3FF;
ack = data[1];
if (cmd != MCP_SEND_EDID_CEA)
return false;
if (ack == EDID_CEA_CMD_ACK)
return true;
*offset = data[2]; /* nack */
return false;
}
#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
static void dcn10_forward_crc_window(struct dmcu *dmcu,
struct rect *rect,
struct otg_phy_mux *mux_mapping)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
unsigned int crc_start = 0, crc_end = 0, otg_phy_mux = 0;
int x_start, y_start, x_end, y_end;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return;
if (!rect)
return;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
x_start = rect->x;
y_start = rect->y;
x_end = x_start + rect->width;
y_end = y_start + rect->height;
/* build up nitification data */
crc_start = (((unsigned int) x_start) << 16) | y_start;
crc_end = (((unsigned int) x_end) << 16) | y_end;
otg_phy_mux =
(((unsigned int) mux_mapping->otg_output_num) << 16) | mux_mapping->phy_output_num;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1),
crc_start);
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG2),
crc_end);
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG3),
otg_phy_mux);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
CRC_WIN_NOTIFY);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
}
static void dcn10_stop_crc_win_update(struct dmcu *dmcu,
struct otg_phy_mux *mux_mapping)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
unsigned int otg_phy_mux = 0;
/* If microcontroller is not running, do nothing */
if (dmcu->dmcu_state != DMCU_RUNNING)
return;
/* waitDMCUReadyForCmd */
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* build up nitification data */
otg_phy_mux =
(((unsigned int) mux_mapping->otg_output_num) << 16) | mux_mapping->phy_output_num;
dm_write_reg(dmcu->ctx, REG(MASTER_COMM_DATA_REG1),
otg_phy_mux);
/* setDMCUParam_Cmd */
REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0,
CRC_STOP_UPDATE);
/* notifyDMCUMsg */
REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
}
#endif
static const struct dmcu_funcs dce_funcs = {
.dmcu_init = dce_dmcu_init,
.load_iram = dce_dmcu_load_iram,
.set_psr_enable = dce_dmcu_set_psr_enable,
.setup_psr = dce_dmcu_setup_psr,
.get_psr_state = dce_get_dmcu_psr_state,
.set_psr_wait_loop = dce_psr_wait_loop,
.get_psr_wait_loop = dce_get_psr_wait_loop,
.is_dmcu_initialized = dce_is_dmcu_initialized
};
static const struct dmcu_funcs dcn10_funcs = {
.dmcu_init = dcn10_dmcu_init,
.load_iram = dcn10_dmcu_load_iram,
.set_psr_enable = dcn10_dmcu_set_psr_enable,
.setup_psr = dcn10_dmcu_setup_psr,
.get_psr_state = dcn10_get_dmcu_psr_state,
.set_psr_wait_loop = dcn10_psr_wait_loop,
.get_psr_wait_loop = dcn10_get_psr_wait_loop,
.send_edid_cea = dcn10_send_edid_cea,
.recv_amd_vsdb = dcn10_recv_amd_vsdb,
.recv_edid_cea_ack = dcn10_recv_edid_cea_ack,
#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
.forward_crc_window = dcn10_forward_crc_window,
.stop_crc_win_update = dcn10_stop_crc_win_update,
#endif
.is_dmcu_initialized = dcn10_is_dmcu_initialized
};
static const struct dmcu_funcs dcn20_funcs = {
.dmcu_init = dcn10_dmcu_init,
.load_iram = dcn10_dmcu_load_iram,
.set_psr_enable = dcn10_dmcu_set_psr_enable,
.setup_psr = dcn10_dmcu_setup_psr,
.get_psr_state = dcn10_get_dmcu_psr_state,
.set_psr_wait_loop = dcn10_psr_wait_loop,
.get_psr_wait_loop = dcn10_get_psr_wait_loop,
.is_dmcu_initialized = dcn10_is_dmcu_initialized,
.lock_phy = dcn20_lock_phy,
.unlock_phy = dcn20_unlock_phy
};
static const struct dmcu_funcs dcn21_funcs = {
.dmcu_init = dcn21_dmcu_init,
.load_iram = dcn10_dmcu_load_iram,
.set_psr_enable = dcn10_dmcu_set_psr_enable,
.setup_psr = dcn10_dmcu_setup_psr,
.get_psr_state = dcn10_get_dmcu_psr_state,
.set_psr_wait_loop = dcn10_psr_wait_loop,
.get_psr_wait_loop = dcn10_get_psr_wait_loop,
.is_dmcu_initialized = dcn10_is_dmcu_initialized,
.lock_phy = dcn20_lock_phy,
.unlock_phy = dcn20_unlock_phy
};
static void dce_dmcu_construct(
struct dce_dmcu *dmcu_dce,
struct dc_context *ctx,
const struct dce_dmcu_registers *regs,
const struct dce_dmcu_shift *dmcu_shift,
const struct dce_dmcu_mask *dmcu_mask)
{
struct dmcu *base = &dmcu_dce->base;
base->ctx = ctx;
base->funcs = &dce_funcs;
base->cached_wait_loop_number = 0;
dmcu_dce->regs = regs;
dmcu_dce->dmcu_shift = dmcu_shift;
dmcu_dce->dmcu_mask = dmcu_mask;
}
static void dcn21_dmcu_construct(
struct dce_dmcu *dmcu_dce,
struct dc_context *ctx,
const struct dce_dmcu_registers *regs,
const struct dce_dmcu_shift *dmcu_shift,
const struct dce_dmcu_mask *dmcu_mask)
{
uint32_t psp_version = 0;
dce_dmcu_construct(dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask);
psp_version = dm_read_reg(ctx, mmMP0_SMN_C2PMSG_58);
dmcu_dce->base.auto_load_dmcu = ((psp_version & 0x00FF00FF) > 0x00110029);
dmcu_dce->base.psp_version = psp_version;
}
struct dmcu *dce_dmcu_create(
struct dc_context *ctx,
const struct dce_dmcu_registers *regs,
const struct dce_dmcu_shift *dmcu_shift,
const struct dce_dmcu_mask *dmcu_mask)
{
struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_KERNEL);
if (dmcu_dce == NULL) {
BREAK_TO_DEBUGGER();
return NULL;
}
dce_dmcu_construct(
dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask);
dmcu_dce->base.funcs = &dce_funcs;
return &dmcu_dce->base;
}
struct dmcu *dcn10_dmcu_create(
struct dc_context *ctx,
const struct dce_dmcu_registers *regs,
const struct dce_dmcu_shift *dmcu_shift,
const struct dce_dmcu_mask *dmcu_mask)
{
struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_ATOMIC);
if (dmcu_dce == NULL) {
BREAK_TO_DEBUGGER();
return NULL;
}
dce_dmcu_construct(
dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask);
dmcu_dce->base.funcs = &dcn10_funcs;
return &dmcu_dce->base;
}
struct dmcu *dcn20_dmcu_create(
struct dc_context *ctx,
const struct dce_dmcu_registers *regs,
const struct dce_dmcu_shift *dmcu_shift,
const struct dce_dmcu_mask *dmcu_mask)
{
struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_ATOMIC);
if (dmcu_dce == NULL) {
BREAK_TO_DEBUGGER();
return NULL;
}
dce_dmcu_construct(
dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask);
dmcu_dce->base.funcs = &dcn20_funcs;
return &dmcu_dce->base;
}
struct dmcu *dcn21_dmcu_create(
struct dc_context *ctx,
const struct dce_dmcu_registers *regs,
const struct dce_dmcu_shift *dmcu_shift,
const struct dce_dmcu_mask *dmcu_mask)
{
struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_ATOMIC);
if (dmcu_dce == NULL) {
BREAK_TO_DEBUGGER();
return NULL;
}
dcn21_dmcu_construct(
dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask);
dmcu_dce->base.funcs = &dcn21_funcs;
return &dmcu_dce->base;
}
void dce_dmcu_destroy(struct dmcu **dmcu)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(*dmcu);
kfree(dmcu_dce);
*dmcu = NULL;
}
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