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drm/radeon/si_dpm: Fix SMU power state load 

Create new structure SISLANDS_SMC_SWSTATE_SINGLE, as initialState.levels
and ACPIState.levels are never actually used as flexible arrays. Those
arrays can be used as simple objects of type
SISLANDS_SMC_HW_PERFORMANCE_LEVEL, instead.

Currently, the code fails because flexible array _levels_ in
struct SISLANDS_SMC_SWSTATE doesn't allow for code that access
the first element of initialState.levels and ACPIState.levels
arrays:

4353         table->initialState.levels[0].mclk.vDLL_CNTL =
4354                 cpu_to_be32(si_pi->clock_registers.dll_cntl);
...
4555         table->ACPIState.levels[0].mclk.vDLL_CNTL =
4556                 cpu_to_be32(dll_cntl);

because such element cannot exist without previously allocating
any dynamic memory for it (which never actually happens).

That's why struct SISLANDS_SMC_SWSTATE should only be used as type
for object driverState and new struct SISLANDS_SMC_SWSTATE_SINGLE is
created as type for objects initialState, ACPIState and ULVState.

Also, with the change from one-element array to flexible-array member
in commit 96e27e8d91 ("drm/radeon/si_dpm: Replace one-element array
with flexible-array in struct SISLANDS_SMC_SWSTATE"), the size of
dpmLevels in struct SISLANDS_SMC_STATETABLE should be fixed to be
SISLANDS_MAX_SMC_PERFORMANCE_LEVELS_PER_SWSTATE instead of
SISLANDS_MAX_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1583
Fixes: 96e27e8d91 ("drm/radeon/si_dpm: Replace one-element array with flexible-array in struct SISLANDS_SMC_SWSTATE")
Cc: stable@vger.kernel.org
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gustavo A. R. Silva 2021-05-09 17:55:25 -05:00 коммит произвёл Alex Deucher
Родитель 5d31950a48
Коммит 1ddeedaa28
2 изменённых файлов: 109 добавлений и 99 удалений
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174
drivers/gpu/drm/radeon/si_dpm.c
Просмотреть файл

@ -4350,70 +4350,70 @@ static int si_populate_smc_initial_state(struct radeon_device *rdev,
u32 reg;
int ret;
table->initialState.levels[0].mclk.vDLL_CNTL =
table->initialState.level.mclk.vDLL_CNTL =
cpu_to_be32(si_pi->clock_registers.dll_cntl);
table->initialState.levels[0].mclk.vMCLK_PWRMGT_CNTL =
table->initialState.level.mclk.vMCLK_PWRMGT_CNTL =
cpu_to_be32(si_pi->clock_registers.mclk_pwrmgt_cntl);
table->initialState.levels[0].mclk.vMPLL_AD_FUNC_CNTL =
table->initialState.level.mclk.vMPLL_AD_FUNC_CNTL =
cpu_to_be32(si_pi->clock_registers.mpll_ad_func_cntl);
table->initialState.levels[0].mclk.vMPLL_DQ_FUNC_CNTL =
table->initialState.level.mclk.vMPLL_DQ_FUNC_CNTL =
cpu_to_be32(si_pi->clock_registers.mpll_dq_func_cntl);
table->initialState.levels[0].mclk.vMPLL_FUNC_CNTL =
table->initialState.level.mclk.vMPLL_FUNC_CNTL =
cpu_to_be32(si_pi->clock_registers.mpll_func_cntl);
table->initialState.levels[0].mclk.vMPLL_FUNC_CNTL_1 =
table->initialState.level.mclk.vMPLL_FUNC_CNTL_1 =
cpu_to_be32(si_pi->clock_registers.mpll_func_cntl_1);
table->initialState.levels[0].mclk.vMPLL_FUNC_CNTL_2 =
table->initialState.level.mclk.vMPLL_FUNC_CNTL_2 =
cpu_to_be32(si_pi->clock_registers.mpll_func_cntl_2);
table->initialState.levels[0].mclk.vMPLL_SS =
table->initialState.level.mclk.vMPLL_SS =
cpu_to_be32(si_pi->clock_registers.mpll_ss1);
table->initialState.levels[0].mclk.vMPLL_SS2 =
table->initialState.level.mclk.vMPLL_SS2 =
cpu_to_be32(si_pi->clock_registers.mpll_ss2);
table->initialState.levels[0].mclk.mclk_value =
table->initialState.level.mclk.mclk_value =
cpu_to_be32(initial_state->performance_levels[0].mclk);
table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL =
table->initialState.level.sclk.vCG_SPLL_FUNC_CNTL =
cpu_to_be32(si_pi->clock_registers.cg_spll_func_cntl);
table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 =
table->initialState.level.sclk.vCG_SPLL_FUNC_CNTL_2 =
cpu_to_be32(si_pi->clock_registers.cg_spll_func_cntl_2);
table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 =
table->initialState.level.sclk.vCG_SPLL_FUNC_CNTL_3 =
cpu_to_be32(si_pi->clock_registers.cg_spll_func_cntl_3);
table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_4 =
table->initialState.level.sclk.vCG_SPLL_FUNC_CNTL_4 =
cpu_to_be32(si_pi->clock_registers.cg_spll_func_cntl_4);
table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM =
table->initialState.level.sclk.vCG_SPLL_SPREAD_SPECTRUM =
cpu_to_be32(si_pi->clock_registers.cg_spll_spread_spectrum);
table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM_2 =
table->initialState.level.sclk.vCG_SPLL_SPREAD_SPECTRUM_2 =
cpu_to_be32(si_pi->clock_registers.cg_spll_spread_spectrum_2);
table->initialState.levels[0].sclk.sclk_value =
table->initialState.level.sclk.sclk_value =
cpu_to_be32(initial_state->performance_levels[0].sclk);
table->initialState.levels[0].arbRefreshState =
table->initialState.level.arbRefreshState =
SISLANDS_INITIAL_STATE_ARB_INDEX;
table->initialState.levels[0].ACIndex = 0;
table->initialState.level.ACIndex = 0;
ret = si_populate_voltage_value(rdev, &eg_pi->vddc_voltage_table,
initial_state->performance_levels[0].vddc,
&table->initialState.levels[0].vddc);
&table->initialState.level.vddc);
if (!ret) {
u16 std_vddc;
ret = si_get_std_voltage_value(rdev,
&table->initialState.levels[0].vddc,
&table->initialState.level.vddc,
&std_vddc);
if (!ret)
si_populate_std_voltage_value(rdev, std_vddc,
table->initialState.levels[0].vddc.index,
&table->initialState.levels[0].std_vddc);
table->initialState.level.vddc.index,
&table->initialState.level.std_vddc);
}
if (eg_pi->vddci_control)
si_populate_voltage_value(rdev,
&eg_pi->vddci_voltage_table,
initial_state->performance_levels[0].vddci,
&table->initialState.levels[0].vddci);
&table->initialState.level.vddci);
if (si_pi->vddc_phase_shed_control)
si_populate_phase_shedding_value(rdev,
@ -4421,43 +4421,43 @@ static int si_populate_smc_initial_state(struct radeon_device *rdev,
initial_state->performance_levels[0].vddc,
initial_state->performance_levels[0].sclk,
initial_state->performance_levels[0].mclk,
&table->initialState.levels[0].vddc);
&table->initialState.level.vddc);
si_populate_initial_mvdd_value(rdev, &table->initialState.levels[0].mvdd);
si_populate_initial_mvdd_value(rdev, &table->initialState.level.mvdd);
reg = CG_R(0xffff) | CG_L(0);
table->initialState.levels[0].aT = cpu_to_be32(reg);
table->initialState.level.aT = cpu_to_be32(reg);
table->initialState.levels[0].bSP = cpu_to_be32(pi->dsp);
table->initialState.level.bSP = cpu_to_be32(pi->dsp);
table->initialState.levels[0].gen2PCIE = (u8)si_pi->boot_pcie_gen;
table->initialState.level.gen2PCIE = (u8)si_pi->boot_pcie_gen;
if (pi->mem_gddr5) {
table->initialState.levels[0].strobeMode =
table->initialState.level.strobeMode =
si_get_strobe_mode_settings(rdev,
initial_state->performance_levels[0].mclk);
if (initial_state->performance_levels[0].mclk > pi->mclk_edc_enable_threshold)
table->initialState.levels[0].mcFlags = SISLANDS_SMC_MC_EDC_RD_FLAG | SISLANDS_SMC_MC_EDC_WR_FLAG;
table->initialState.level.mcFlags = SISLANDS_SMC_MC_EDC_RD_FLAG | SISLANDS_SMC_MC_EDC_WR_FLAG;
else
table->initialState.levels[0].mcFlags = 0;
table->initialState.level.mcFlags = 0;
}
table->initialState.levelCount = 1;
table->initialState.flags |= PPSMC_SWSTATE_FLAG_DC;
table->initialState.levels[0].dpm2.MaxPS = 0;
table->initialState.levels[0].dpm2.NearTDPDec = 0;
table->initialState.levels[0].dpm2.AboveSafeInc = 0;
table->initialState.levels[0].dpm2.BelowSafeInc = 0;
table->initialState.levels[0].dpm2.PwrEfficiencyRatio = 0;
table->initialState.level.dpm2.MaxPS = 0;
table->initialState.level.dpm2.NearTDPDec = 0;
table->initialState.level.dpm2.AboveSafeInc = 0;
table->initialState.level.dpm2.BelowSafeInc = 0;
table->initialState.level.dpm2.PwrEfficiencyRatio = 0;
reg = MIN_POWER_MASK | MAX_POWER_MASK;
table->initialState.levels[0].SQPowerThrottle = cpu_to_be32(reg);
table->initialState.level.SQPowerThrottle = cpu_to_be32(reg);
reg = MAX_POWER_DELTA_MASK | STI_SIZE_MASK | LTI_RATIO_MASK;
table->initialState.levels[0].SQPowerThrottle_2 = cpu_to_be32(reg);
table->initialState.level.SQPowerThrottle_2 = cpu_to_be32(reg);
return 0;
}
@ -4488,18 +4488,18 @@ static int si_populate_smc_acpi_state(struct radeon_device *rdev,
if (pi->acpi_vddc) {
ret = si_populate_voltage_value(rdev, &eg_pi->vddc_voltage_table,
pi->acpi_vddc, &table->ACPIState.levels[0].vddc);
pi->acpi_vddc, &table->ACPIState.level.vddc);
if (!ret) {
u16 std_vddc;
ret = si_get_std_voltage_value(rdev,
&table->ACPIState.levels[0].vddc, &std_vddc);
&table->ACPIState.level.vddc, &std_vddc);
if (!ret)
si_populate_std_voltage_value(rdev, std_vddc,
table->ACPIState.levels[0].vddc.index,
&table->ACPIState.levels[0].std_vddc);
table->ACPIState.level.vddc.index,
&table->ACPIState.level.std_vddc);
}
table->ACPIState.levels[0].gen2PCIE = si_pi->acpi_pcie_gen;
table->ACPIState.level.gen2PCIE = si_pi->acpi_pcie_gen;
if (si_pi->vddc_phase_shed_control) {
si_populate_phase_shedding_value(rdev,
@ -4507,23 +4507,23 @@ static int si_populate_smc_acpi_state(struct radeon_device *rdev,
pi->acpi_vddc,
0,
0,
&table->ACPIState.levels[0].vddc);
&table->ACPIState.level.vddc);
}
} else {
ret = si_populate_voltage_value(rdev, &eg_pi->vddc_voltage_table,
pi->min_vddc_in_table, &table->ACPIState.levels[0].vddc);
pi->min_vddc_in_table, &table->ACPIState.level.vddc);
if (!ret) {
u16 std_vddc;
ret = si_get_std_voltage_value(rdev,
&table->ACPIState.levels[0].vddc, &std_vddc);
&table->ACPIState.level.vddc, &std_vddc);
if (!ret)
si_populate_std_voltage_value(rdev, std_vddc,
table->ACPIState.levels[0].vddc.index,
&table->ACPIState.levels[0].std_vddc);
table->ACPIState.level.vddc.index,
&table->ACPIState.level.std_vddc);
}
table->ACPIState.levels[0].gen2PCIE = (u8)r600_get_pcie_gen_support(rdev,
table->ACPIState.level.gen2PCIE = (u8)r600_get_pcie_gen_support(rdev,
si_pi->sys_pcie_mask,
si_pi->boot_pcie_gen,
RADEON_PCIE_GEN1);
@ -4534,14 +4534,14 @@ static int si_populate_smc_acpi_state(struct radeon_device *rdev,
pi->min_vddc_in_table,
0,
0,
&table->ACPIState.levels[0].vddc);
&table->ACPIState.level.vddc);
}
if (pi->acpi_vddc) {
if (eg_pi->acpi_vddci)
si_populate_voltage_value(rdev, &eg_pi->vddci_voltage_table,
eg_pi->acpi_vddci,
&table->ACPIState.levels[0].vddci);
&table->ACPIState.level.vddci);
}
mclk_pwrmgt_cntl |= MRDCK0_RESET | MRDCK1_RESET;
@ -4552,59 +4552,59 @@ static int si_populate_smc_acpi_state(struct radeon_device *rdev,
spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
spll_func_cntl_2 |= SCLK_MUX_SEL(4);
table->ACPIState.levels[0].mclk.vDLL_CNTL =
table->ACPIState.level.mclk.vDLL_CNTL =
cpu_to_be32(dll_cntl);
table->ACPIState.levels[0].mclk.vMCLK_PWRMGT_CNTL =
table->ACPIState.level.mclk.vMCLK_PWRMGT_CNTL =
cpu_to_be32(mclk_pwrmgt_cntl);
table->ACPIState.levels[0].mclk.vMPLL_AD_FUNC_CNTL =
table->ACPIState.level.mclk.vMPLL_AD_FUNC_CNTL =
cpu_to_be32(mpll_ad_func_cntl);
table->ACPIState.levels[0].mclk.vMPLL_DQ_FUNC_CNTL =
table->ACPIState.level.mclk.vMPLL_DQ_FUNC_CNTL =
cpu_to_be32(mpll_dq_func_cntl);
table->ACPIState.levels[0].mclk.vMPLL_FUNC_CNTL =
table->ACPIState.level.mclk.vMPLL_FUNC_CNTL =
cpu_to_be32(mpll_func_cntl);
table->ACPIState.levels[0].mclk.vMPLL_FUNC_CNTL_1 =
table->ACPIState.level.mclk.vMPLL_FUNC_CNTL_1 =
cpu_to_be32(mpll_func_cntl_1);
table->ACPIState.levels[0].mclk.vMPLL_FUNC_CNTL_2 =
table->ACPIState.level.mclk.vMPLL_FUNC_CNTL_2 =
cpu_to_be32(mpll_func_cntl_2);
table->ACPIState.levels[0].mclk.vMPLL_SS =
table->ACPIState.level.mclk.vMPLL_SS =
cpu_to_be32(si_pi->clock_registers.mpll_ss1);
table->ACPIState.levels[0].mclk.vMPLL_SS2 =
table->ACPIState.level.mclk.vMPLL_SS2 =
cpu_to_be32(si_pi->clock_registers.mpll_ss2);
table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL =
table->ACPIState.level.sclk.vCG_SPLL_FUNC_CNTL =
cpu_to_be32(spll_func_cntl);
table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 =
table->ACPIState.level.sclk.vCG_SPLL_FUNC_CNTL_2 =
cpu_to_be32(spll_func_cntl_2);
table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 =
table->ACPIState.level.sclk.vCG_SPLL_FUNC_CNTL_3 =
cpu_to_be32(spll_func_cntl_3);
table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_4 =
table->ACPIState.level.sclk.vCG_SPLL_FUNC_CNTL_4 =
cpu_to_be32(spll_func_cntl_4);
table->ACPIState.levels[0].mclk.mclk_value = 0;
table->ACPIState.levels[0].sclk.sclk_value = 0;
table->ACPIState.level.mclk.mclk_value = 0;
table->ACPIState.level.sclk.sclk_value = 0;
si_populate_mvdd_value(rdev, 0, &table->ACPIState.levels[0].mvdd);
si_populate_mvdd_value(rdev, 0, &table->ACPIState.level.mvdd);
if (eg_pi->dynamic_ac_timing)
table->ACPIState.levels[0].ACIndex = 0;
table->ACPIState.level.ACIndex = 0;
table->ACPIState.levels[0].dpm2.MaxPS = 0;
table->ACPIState.levels[0].dpm2.NearTDPDec = 0;
table->ACPIState.levels[0].dpm2.AboveSafeInc = 0;
table->ACPIState.levels[0].dpm2.BelowSafeInc = 0;
table->ACPIState.levels[0].dpm2.PwrEfficiencyRatio = 0;
table->ACPIState.level.dpm2.MaxPS = 0;
table->ACPIState.level.dpm2.NearTDPDec = 0;
table->ACPIState.level.dpm2.AboveSafeInc = 0;
table->ACPIState.level.dpm2.BelowSafeInc = 0;
table->ACPIState.level.dpm2.PwrEfficiencyRatio = 0;
reg = MIN_POWER_MASK | MAX_POWER_MASK;
table->ACPIState.levels[0].SQPowerThrottle = cpu_to_be32(reg);
table->ACPIState.level.SQPowerThrottle = cpu_to_be32(reg);
reg = MAX_POWER_DELTA_MASK | STI_SIZE_MASK | LTI_RATIO_MASK;
table->ACPIState.levels[0].SQPowerThrottle_2 = cpu_to_be32(reg);
table->ACPIState.level.SQPowerThrottle_2 = cpu_to_be32(reg);
return 0;
}
static int si_populate_ulv_state(struct radeon_device *rdev,
SISLANDS_SMC_SWSTATE *state)
struct SISLANDS_SMC_SWSTATE_SINGLE *state)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
struct si_power_info *si_pi = si_get_pi(rdev);
@ -4613,19 +4613,19 @@ static int si_populate_ulv_state(struct radeon_device *rdev,
int ret;
ret = si_convert_power_level_to_smc(rdev, &ulv->pl,
&state->levels[0]);
&state->level);
if (!ret) {
if (eg_pi->sclk_deep_sleep) {
if (sclk_in_sr <= SCLK_MIN_DEEPSLEEP_FREQ)
state->levels[0].stateFlags |= PPSMC_STATEFLAG_DEEPSLEEP_BYPASS;
state->level.stateFlags |= PPSMC_STATEFLAG_DEEPSLEEP_BYPASS;
else
state->levels[0].stateFlags |= PPSMC_STATEFLAG_DEEPSLEEP_THROTTLE;
state->level.stateFlags |= PPSMC_STATEFLAG_DEEPSLEEP_THROTTLE;
}
if (ulv->one_pcie_lane_in_ulv)
state->flags |= PPSMC_SWSTATE_FLAG_PCIE_X1;
state->levels[0].arbRefreshState = (u8)(SISLANDS_ULV_STATE_ARB_INDEX);
state->levels[0].ACIndex = 1;
state->levels[0].std_vddc = state->levels[0].vddc;
state->level.arbRefreshState = (u8)(SISLANDS_ULV_STATE_ARB_INDEX);
state->level.ACIndex = 1;
state->level.std_vddc = state->level.vddc;
state->levelCount = 1;
state->flags |= PPSMC_SWSTATE_FLAG_DC;
@ -4725,7 +4725,9 @@ static int si_init_smc_table(struct radeon_device *rdev)
if (ret)
return ret;
table->driverState = table->initialState;
table->driverState.flags = table->initialState.flags;
table->driverState.levelCount = table->initialState.levelCount;
table->driverState.levels[0] = table->initialState.level;
ret = si_do_program_memory_timing_parameters(rdev, radeon_boot_state,
SISLANDS_INITIAL_STATE_ARB_INDEX);
@ -5275,8 +5277,8 @@ static int si_upload_ulv_state(struct radeon_device *rdev)
if (ulv->supported && ulv->pl.vddc) {
u32 address = si_pi->state_table_start +
offsetof(SISLANDS_SMC_STATETABLE, ULVState);
SISLANDS_SMC_SWSTATE *smc_state = &si_pi->smc_statetable.ULVState;
u32 state_size = sizeof(SISLANDS_SMC_SWSTATE);
struct SISLANDS_SMC_SWSTATE_SINGLE *smc_state = &si_pi->smc_statetable.ULVState;
u32 state_size = sizeof(struct SISLANDS_SMC_SWSTATE_SINGLE);
memset(smc_state, 0, state_size);

34
drivers/gpu/drm/radeon/sislands_smc.h
Просмотреть файл

@ -191,6 +191,14 @@ struct SISLANDS_SMC_SWSTATE
typedef struct SISLANDS_SMC_SWSTATE SISLANDS_SMC_SWSTATE;
struct SISLANDS_SMC_SWSTATE_SINGLE {
uint8_t flags;
uint8_t levelCount;
uint8_t padding2;
uint8_t padding3;
SISLANDS_SMC_HW_PERFORMANCE_LEVEL level;
};
#define SISLANDS_SMC_VOLTAGEMASK_VDDC 0
#define SISLANDS_SMC_VOLTAGEMASK_MVDD 1
#define SISLANDS_SMC_VOLTAGEMASK_VDDCI 2
@ -208,19 +216,19 @@ typedef struct SISLANDS_SMC_VOLTAGEMASKTABLE SISLANDS_SMC_VOLTAGEMASKTABLE;
struct SISLANDS_SMC_STATETABLE
{
uint8_t thermalProtectType;
uint8_t systemFlags;
uint8_t maxVDDCIndexInPPTable;
uint8_t extraFlags;
uint32_t lowSMIO[SISLANDS_MAX_NO_VREG_STEPS];
SISLANDS_SMC_VOLTAGEMASKTABLE voltageMaskTable;
SISLANDS_SMC_VOLTAGEMASKTABLE phaseMaskTable;
PP_SIslands_DPM2Parameters dpm2Params;
SISLANDS_SMC_SWSTATE initialState;
SISLANDS_SMC_SWSTATE ACPIState;
SISLANDS_SMC_SWSTATE ULVState;
SISLANDS_SMC_SWSTATE driverState;
SISLANDS_SMC_HW_PERFORMANCE_LEVEL dpmLevels[SISLANDS_MAX_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1];
uint8_t thermalProtectType;
uint8_t systemFlags;
uint8_t maxVDDCIndexInPPTable;
uint8_t extraFlags;
uint32_t lowSMIO[SISLANDS_MAX_NO_VREG_STEPS];
SISLANDS_SMC_VOLTAGEMASKTABLE voltageMaskTable;
SISLANDS_SMC_VOLTAGEMASKTABLE phaseMaskTable;
PP_SIslands_DPM2Parameters dpm2Params;
struct SISLANDS_SMC_SWSTATE_SINGLE initialState;
struct SISLANDS_SMC_SWSTATE_SINGLE ACPIState;
struct SISLANDS_SMC_SWSTATE_SINGLE ULVState;
SISLANDS_SMC_SWSTATE driverState;
SISLANDS_SMC_HW_PERFORMANCE_LEVEL dpmLevels[SISLANDS_MAX_SMC_PERFORMANCE_LEVELS_PER_SWSTATE];
};
typedef struct SISLANDS_SMC_STATETABLE SISLANDS_SMC_STATETABLE;