From 58cb7632df30698900a474cb85fa292bafd73b2e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 6 May 2013 12:15:33 -0400 Subject: drm/radeon/dpm: add support for parsing the atom powertune table Needed for DPM on CI. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/r600_dpm.c | 44 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'drivers/gpu/drm/radeon/r600_dpm.c') diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c index ccdf770dd770..e6905f011bfa 100644 --- a/drivers/gpu/drm/radeon/r600_dpm.c +++ b/drivers/gpu/drm/radeon/r600_dpm.c @@ -1014,6 +1014,48 @@ int r600_parse_extended_power_table(struct radeon_device *rdev) rdev->pm.dpm.dyn_state.ppm_table->tj_max = le32_to_cpu(ppm->ulTjmax); } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) && + ext_hdr->usPowerTuneTableOffset) { + u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); + ATOM_PowerTune_Table *pt; + rdev->pm.dpm.dyn_state.cac_tdp_table = + kzalloc(sizeof(struct radeon_cac_tdp_table), GFP_KERNEL); + if (!rdev->pm.dpm.dyn_state.cac_tdp_table) { + kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries); + kfree(rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk.entries); + kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk.entries); + kfree(rdev->pm.dpm.dyn_state.cac_leakage_table.entries); + kfree(rdev->pm.dpm.dyn_state.ppm_table); + return -ENOMEM; + } + if (rev > 0) { + ATOM_PPLIB_POWERTUNE_Table_V1 *ppt = (ATOM_PPLIB_POWERTUNE_Table_V1 *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); + rdev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = + ppt->usMaximumPowerDeliveryLimit; + pt = &ppt->power_tune_table; + } else { + ATOM_PPLIB_POWERTUNE_Table *ppt = (ATOM_PPLIB_POWERTUNE_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); + rdev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = 255; + pt = &ppt->power_tune_table; + } + rdev->pm.dpm.dyn_state.cac_tdp_table->tdp = le16_to_cpu(pt->usTDP); + rdev->pm.dpm.dyn_state.cac_tdp_table->configurable_tdp = + le16_to_cpu(pt->usConfigurableTDP); + rdev->pm.dpm.dyn_state.cac_tdp_table->tdc = le16_to_cpu(pt->usTDC); + rdev->pm.dpm.dyn_state.cac_tdp_table->battery_power_limit = + le16_to_cpu(pt->usBatteryPowerLimit); + rdev->pm.dpm.dyn_state.cac_tdp_table->small_power_limit = + le16_to_cpu(pt->usSmallPowerLimit); + rdev->pm.dpm.dyn_state.cac_tdp_table->low_cac_leakage = + le16_to_cpu(pt->usLowCACLeakage); + rdev->pm.dpm.dyn_state.cac_tdp_table->high_cac_leakage = + le16_to_cpu(pt->usHighCACLeakage); + } } return 0; @@ -1033,6 +1075,8 @@ void r600_free_extended_power_table(struct radeon_device *rdev) kfree(rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries); if (rdev->pm.dpm.dyn_state.ppm_table) kfree(rdev->pm.dpm.dyn_state.ppm_table); + if (rdev->pm.dpm.dyn_state.cac_tdp_table) + kfree(rdev->pm.dpm.dyn_state.cac_tdp_table); } enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev, -- cgit v1.2.3