/*
* Retrieve an argument from SMC.
* @param smumgr the address of the powerplay hardware manager.
* @param arg pointer to store the argument from SMC.
* @return Always return 0.
*/
int vega10_read_arg_from_smc(struct pp_smumgr *smumgr, uint32_t *arg)
{
uint32_t reg;
reg = soc15_get_register_offset(MP1_HWID, 0,
mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82);
*arg = cgs_read_register(smumgr->device, reg);
return 0;
}
/* power off a tile/block within ACP */
static int acp_suspend_tile(void *cgs_dev, int tile)
{
u32 val = 0;
u32 count = 0;
if ((tile < ACP_TILE_P1) || (tile > ACP_TILE_DSP2)) {
pr_err("Invalid ACP tile : %d to suspend\n", tile);
return -1;
}
val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 + tile);
val &= ACP_TILE_ON_MASK;
if (val == 0x0) {
val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG);
val = val | (1 << tile);
cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val);
cgs_write_register(cgs_dev, mmACP_PGFSM_CONFIG_REG,
0x500 + tile);
count = ACP_TIMEOUT_LOOP;
while (true) {
val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0
+ tile);
val = val & ACP_TILE_ON_MASK;
if (val == ACP_TILE_OFF_MASK)
break;
if (--count == 0) {
pr_err("Timeout reading ACP PGFSM status\n");
return -ETIMEDOUT;
}
udelay(100);
}
val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG);
val |= ACP_TILE_OFF_RETAIN_REG_MASK;
cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val);
}
return 0;
}
/* power on a tile/block within ACP */
static int acp_resume_tile(void *cgs_dev, int tile)
{
u32 val = 0;
u32 count = 0;
if ((tile < ACP_TILE_P1) || (tile > ACP_TILE_DSP2)) {
pr_err("Invalid ACP tile to resume\n");
return -1;
}
val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 + tile);
val = val & ACP_TILE_ON_MASK;
if (val != 0x0) {
cgs_write_register(cgs_dev, mmACP_PGFSM_CONFIG_REG,
0x600 + tile);
count = ACP_TIMEOUT_LOOP;
while (true) {
val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0
+ tile);
val = val & ACP_TILE_ON_MASK;
if (val == 0x0)
break;
if (--count == 0) {
pr_err("Timeout reading ACP PGFSM status\n");
return -ETIMEDOUT;
}
udelay(100);
}
val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG);
if (tile == ACP_TILE_P1)
val = val & (ACP_TILE_P1_MASK);
else if (tile == ACP_TILE_P2)
val = val & (ACP_TILE_P2_MASK);
cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val);
}
return 0;
}
static int rv_thermal_get_temperature(struct pp_hwmgr *hwmgr)
{
uint32_t reg_offset = soc15_get_register_offset(THM_HWID, 0,
mmTHM_TCON_CUR_TMP_BASE_IDX, mmTHM_TCON_CUR_TMP);
uint32_t reg_value = cgs_read_register(hwmgr->device, reg_offset);
int cur_temp =
(reg_value & THM_TCON_CUR_TMP__CUR_TEMP_MASK) >> THM_TCON_CUR_TMP__CUR_TEMP__SHIFT;
if (cur_temp & THM_TCON_CUR_TMP__CUR_TEMP_RANGE_SEL_MASK)
cur_temp = ((cur_temp / 8) - 49) * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
else
cur_temp = (cur_temp / 8) * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
return cur_temp;
}
/*
* Check if SMC has responded to previous message.
*
* @param smumgr the address of the powerplay hardware manager.
* @return TRUE SMC has responded, FALSE otherwise.
*/
static uint32_t vega10_wait_for_response(struct pp_smumgr *smumgr)
{
uint32_t reg;
if (!vega10_is_smc_ram_running(smumgr))
return -EINVAL;
reg = soc15_get_register_offset(MP1_HWID, 0,
mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
smum_wait_for_register_unequal(smumgr, reg,
0, MP1_C2PMSG_90__CONTENT_MASK);
return cgs_read_register(smumgr->device, reg);
}
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
value = cgs_read_register(ctx->cgs_device, address);
trace_amdgpu_dc_rreg(&ctx->perf_trace->read_count, address, value);
return value;
}
static bool vega10_is_smc_ram_running(struct pp_smumgr *smumgr)
{
uint32_t mp1_fw_flags, reg;
reg = soc15_get_register_offset(NBIF_HWID, 0,
mmPCIE_INDEX2_BASE_IDX, mmPCIE_INDEX2);
cgs_write_register(smumgr->device, reg,
(MP1_Public | (smnMP1_FIRMWARE_FLAGS & 0xffffffff)));
reg = soc15_get_register_offset(NBIF_HWID, 0,
mmPCIE_DATA2_BASE_IDX, mmPCIE_DATA2);
mp1_fw_flags = cgs_read_register(smumgr->device, reg);
if (mp1_fw_flags & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK)
return true;
return false;
}
/*
* Returns once the part of the register indicated by the mask has
* reached the given value.
*/
int smum_wait_on_register(struct pp_smumgr *smumgr,
uint32_t index,
uint32_t value, uint32_t mask)
{
uint32_t i;
uint32_t cur_value;
if (smumgr == NULL || smumgr->device == NULL)
return -EINVAL;
for (i = 0; i < smumgr->usec_timeout; i++) {
cur_value = cgs_read_register(smumgr->device, index);
if ((cur_value & mask) == (value & mask))
break;
udelay(1);
}
/* timeout means wrong logic*/
if (i == smumgr->usec_timeout)
return -1;
return 0;
}
int phm_wait_for_register_unequal(struct pp_hwmgr *hwmgr,
uint32_t index, uint32_t value, uint32_t mask)
{
uint32_t i;
uint32_t cur_value;
if (hwmgr == NULL || hwmgr->device == NULL) {
printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!");
return -EINVAL;
}
for (i = 0; i < hwmgr->usec_timeout; i++) {
cur_value = cgs_read_register(hwmgr->device, index);
if ((cur_value & mask) != (value & mask))
break;
udelay(1);
}
/* timeout means wrong logic*/
if (i == hwmgr->usec_timeout)
return -1;
return 0;
}
int phm_wait_for_register_unequal(struct pp_hwmgr *hwmgr,
uint32_t index,
uint32_t value, uint32_t mask)
{
uint32_t i;
uint32_t cur_value;
if (hwmgr == NULL || hwmgr->device == NULL)
return -EINVAL;
for (i = 0; i < hwmgr->usec_timeout; i++) {
cur_value = cgs_read_register(hwmgr->device,
index);
if ((cur_value & mask) != (value & mask))
break;
udelay(1);
}
/* timeout means wrong logic */
if (i == hwmgr->usec_timeout)
return -ETIME;
return 0;
}
