[PATCH] drm/amd/pm: Fix out-of-bounds bug
Alex Deucher
alexdeucher at gmail.com
Mon May 10 21:20:31 UTC 2021
On Mon, May 10, 2021 at 4:45 PM Gustavo A. R. Silva
<gustavoars at kernel.org> wrote:
>
> 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 accesses
> the first element of initialState.levels and ACPIState.levels
> arrays:
>
> drivers/gpu/drm/amd/pm/powerplay/si_dpm.c:
> 4820: table->initialState.levels[0].mclk.vDLL_CNTL =
> 4821: cpu_to_be32(si_pi->clock_registers.dll_cntl);
> ...
> 5021: table->ACPIState.levels[0].mclk.vDLL_CNTL =
> 5022: cpu_to_be32(dll_cntl);
>
> because such element cannot be accessed without previously allocating
> enough dynamic memory for it to exist (which never actually happens).
> So, there is an out-of-bounds bug in this case.
>
> 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 0e1aa13ca3ff ("drm/amd/pm: 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.
>
> Fixes: 0e1aa13ca3ff ("drm/amd/pm: Replace one-element array with flexible-array in struct SISLANDS_SMC_SWSTATE")
> Cc: stable at vger.kernel.org
> Signed-off-by: Gustavo A. R. Silva <gustavoars at kernel.org>
Applied. Thanks!
Alex
> ---
> drivers/gpu/drm/amd/pm/powerplay/si_dpm.c | 174 +++++++++---------
> .../gpu/drm/amd/pm/powerplay/sislands_smc.h | 34 ++--
> 2 files changed, 109 insertions(+), 99 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/powerplay/si_dpm.c b/drivers/gpu/drm/amd/pm/powerplay/si_dpm.c
> index 26a5321e621b..15c0b8af376f 100644
> --- a/drivers/gpu/drm/amd/pm/powerplay/si_dpm.c
> +++ b/drivers/gpu/drm/amd/pm/powerplay/si_dpm.c
> @@ -4817,70 +4817,70 @@ static int si_populate_smc_initial_state(struct amdgpu_device *adev,
> 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(adev, &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(adev,
> - &table->initialState.levels[0].vddc,
> + &table->initialState.level.vddc,
> &std_vddc);
> if (!ret)
> si_populate_std_voltage_value(adev, 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(adev,
> &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(adev,
> @@ -4888,41 +4888,41 @@ static int si_populate_smc_initial_state(struct amdgpu_device *adev,
> 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(adev, &table->initialState.levels[0].mvdd);
> + si_populate_initial_mvdd_value(adev, &table->initialState.level.mvdd);
>
> reg = CG_R(0xffff) | CG_L(0);
> - table->initialState.levels[0].aT = cpu_to_be32(reg);
> - table->initialState.levels[0].bSP = cpu_to_be32(pi->dsp);
> - table->initialState.levels[0].gen2PCIE = (u8)si_pi->boot_pcie_gen;
> + table->initialState.level.aT = cpu_to_be32(reg);
> + table->initialState.level.bSP = cpu_to_be32(pi->dsp);
> + table->initialState.level.gen2PCIE = (u8)si_pi->boot_pcie_gen;
>
> if (adev->gmc.vram_type == AMDGPU_VRAM_TYPE_GDDR5) {
> - table->initialState.levels[0].strobeMode =
> + table->initialState.level.strobeMode =
> si_get_strobe_mode_settings(adev,
> 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;
> }
> @@ -4953,18 +4953,18 @@ static int si_populate_smc_acpi_state(struct amdgpu_device *adev,
>
> if (pi->acpi_vddc) {
> ret = si_populate_voltage_value(adev, &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(adev,
> - &table->ACPIState.levels[0].vddc, &std_vddc);
> + &table->ACPIState.level.vddc, &std_vddc);
> if (!ret)
> si_populate_std_voltage_value(adev, 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(adev,
> @@ -4972,23 +4972,23 @@ static int si_populate_smc_acpi_state(struct amdgpu_device *adev,
> pi->acpi_vddc,
> 0,
> 0,
> - &table->ACPIState.levels[0].vddc);
> + &table->ACPIState.level.vddc);
> }
> } else {
> ret = si_populate_voltage_value(adev, &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(adev,
> - &table->ACPIState.levels[0].vddc, &std_vddc);
> + &table->ACPIState.level.vddc, &std_vddc);
>
> if (!ret)
> si_populate_std_voltage_value(adev, 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 =
> + table->ACPIState.level.gen2PCIE =
> (u8)amdgpu_get_pcie_gen_support(adev,
> si_pi->sys_pcie_mask,
> si_pi->boot_pcie_gen,
> @@ -5000,14 +5000,14 @@ static int si_populate_smc_acpi_state(struct amdgpu_device *adev,
> 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(adev, &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;
> @@ -5018,59 +5018,59 @@ static int si_populate_smc_acpi_state(struct amdgpu_device *adev,
> 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(adev, 0, &table->ACPIState.levels[0].mvdd);
> + si_populate_mvdd_value(adev, 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 amdgpu_device *adev,
> - SISLANDS_SMC_SWSTATE *state)
> + struct SISLANDS_SMC_SWSTATE_SINGLE *state)
> {
> struct evergreen_power_info *eg_pi = evergreen_get_pi(adev);
> struct si_power_info *si_pi = si_get_pi(adev);
> @@ -5079,19 +5079,19 @@ static int si_populate_ulv_state(struct amdgpu_device *adev,
> int ret;
>
> ret = si_convert_power_level_to_smc(adev, &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;
> @@ -5190,7 +5190,9 @@ static int si_init_smc_table(struct amdgpu_device *adev)
> 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(adev, amdgpu_boot_state,
> SISLANDS_INITIAL_STATE_ARB_INDEX);
> @@ -5737,8 +5739,8 @@ static int si_upload_ulv_state(struct amdgpu_device *adev)
> 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);
>
> diff --git a/drivers/gpu/drm/amd/pm/powerplay/sislands_smc.h b/drivers/gpu/drm/amd/pm/powerplay/sislands_smc.h
> index 0f7554052c90..c7dc117a688c 100644
> --- a/drivers/gpu/drm/amd/pm/powerplay/sislands_smc.h
> +++ b/drivers/gpu/drm/amd/pm/powerplay/sislands_smc.h
> @@ -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;
> --
> 2.27.0
>
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