drm/radeon: parse the vce clock voltage deps table

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c
index 9dda735..b49b0f0 100644 (file)
--- a/drivers/gpu/drm/radeon/r600_dpm.c
+++ b/drivers/gpu/drm/radeon/r600_dpm.c
@@ -989,12 +989,47 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
                }
        }
 
-       /* ppm table */
+       /* ext tables */
        if (le16_to_cpu(power_info->pplib.usTableSize) >=
            sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) {
                ATOM_PPLIB_EXTENDEDHEADER *ext_hdr = (ATOM_PPLIB_EXTENDEDHEADER *)
                        (mode_info->atom_context->bios + data_offset +
                         le16_to_cpu(power_info->pplib3.usExtendendedHeaderOffset));
+               if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2) &&
+                       ext_hdr->usVCETableOffset) {
+                       VCEClockInfoArray *array = (VCEClockInfoArray *)
+                               (mode_info->atom_context->bios + data_offset +
+                                 le16_to_cpu(ext_hdr->usVCETableOffset) + 1);
+                       ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *limits =
+                               (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *)
+                               (mode_info->atom_context->bios + data_offset +
+                                le16_to_cpu(ext_hdr->usVCETableOffset) + 1 +
+                                1 + array->ucNumEntries * sizeof(VCEClockInfo));
+                       u32 size = limits->numEntries *
+                               sizeof(struct radeon_vce_clock_voltage_dependency_entry);
+                       rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries =
+                               kzalloc(size, GFP_KERNEL);
+                       if (!rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries) {
+                               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.mvdd_dependency_on_mclk.entries);
+                               kfree(rdev->pm.dpm.dyn_state.cac_leakage_table.entries);
+                               return -ENOMEM;
+                       }
+                       rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.count =
+                               limits->numEntries;
+                       for (i = 0; i < limits->numEntries; i++) {
+                               VCEClockInfo *vce_clk =
+                                       &array->entries[limits->entries[i].ucVCEClockInfoIndex];
+                               rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].evclk =
+                                       le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16);
+                               rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].ecclk =
+                                       le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16);
+                               rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].v =
+                                       le16_to_cpu(limits->entries[i].usVoltage);
+                       }
+               }
                if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) &&
                    ext_hdr->usPPMTableOffset) {
                        ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *)
@@ -1008,6 +1043,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
                                kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk.entries);
                                kfree(rdev->pm.dpm.dyn_state.mvdd_dependency_on_mclk.entries);
                                kfree(rdev->pm.dpm.dyn_state.cac_leakage_table.entries);
+                               kfree(rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries);
                                return -ENOMEM;
                        }
                        rdev->pm.dpm.dyn_state.ppm_table->ppm_design = ppm->ucPpmDesign;
@@ -1044,6 +1080,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
                                kfree(rdev->pm.dpm.dyn_state.mvdd_dependency_on_mclk.entries);
                                kfree(rdev->pm.dpm.dyn_state.cac_leakage_table.entries);
                                kfree(rdev->pm.dpm.dyn_state.ppm_table);
+                               kfree(rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries);
                                return -ENOMEM;
                        }
                        if (rev > 0) {
@@ -1096,6 +1133,8 @@ void r600_free_extended_power_table(struct radeon_device *rdev)
                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);
+       if (rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries)
+               kfree(rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries);
 }
 
 enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,