UV2 with dynamic voltages

Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv.hpp

@@ -48,8 +48,9 @@ namespace ams::ldr::oc::pcv {
             {                                               },
         };
 
-        constexpr int gpuVmax = 750;
-        constexpr int gpuVmin = 610;
+        constexpr u32 CpuClkOfficial  = 1963'500;
+        constexpr u32 CpuVoltOfficial = 1120;
+        constexpr u32 CpuVminOfficial = 620;
 
         constexpr u32 CpuVoltagePatchValues[]  = { 850, 38, 1120, 1000, 100, 1000, 0 };
         constexpr s32 CpuVoltagePatchOffsets[] = {  -2, -1,    5,    6,   7,    8, 9 };
@@ -59,9 +60,6 @@ namespace ams::ldr::oc::pcv {
         constexpr s32 CpuVoltageSecondaryPatchOffsets[] = { -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
         static_assert(sizeof(CpuVoltageSecondaryPatchValues) == sizeof(CpuVoltageSecondaryPatchOffsets), "Invalid secondary CpuVoltagePatch size");
 
-        constexpr u32 CpuClkOfficial  = 1963'500;
-        constexpr u32 CpuVoltOfficial = 1120;
-
         constexpr cvb_entry_t GpuCvbTableDefault[] = {
             // GPUB01_NA_CVB_TABLE
             {   76800, {}, {  610000,                                 } },
@@ -86,8 +84,68 @@ namespace ams::ldr::oc::pcv {
 
         constexpr u32 GpuClkPllMax = 1300'000'000;
         constexpr u32 GpuClkPllLimit = 2'600'000;
+        constexpr int GpuVminOfficial = 610;
 
-        constexpr u32 CpuVminOfficial = 620;
+        constexpr u32 GpuDVFSPattern[] = { 1050, 1000, 100, 1000, 10, };
+        constexpr u32 GpuVoltThermalPattern[] = { 800, 1120, 0, 610, 1120, 20000, 610, 1120, 30000, 610, 1120, 50000, 610, 1120, 70000, 610, 1120, 90000, };
+        static_assert(sizeof(GpuVoltThermalPattern) == 72, "Invalid GpuVoltThermalPattern");
+
+        struct SpeedoVminTable {
+            u32 speedo;
+            u32 voltage;
+        };
+
+        struct RamVminOffsetTable {
+            u32 maxClock;
+            u32 offset;
+        };
+
+        constexpr u32 GetGpuVminVoltage() {
+            constexpr SpeedoVminTable Table[] {
+                {1560,       590},
+                {1583,       570},
+                {1620,       565},
+                {1670,       560},
+                {1694,       555},
+                {1731,       550},
+                {1750,       540},
+                {0xFFFFFFFF, 530},
+            };
+
+            for (auto e : Table) {
+                if (C.gpuSpeedo <= e.speedo) {
+                    return e.voltage;
+                }
+            }
+
+            return 530;
+        }
+
+        constexpr u32 GetRamVminAdjustment(u32 vmin) {
+            if (C.marikoEmcMaxClock < 2133000) {
+                return vmin;
+            }
+
+            const u32 ramScale = (((C.marikoEmcMaxClock / 1000) - 2133) / 33) * 5 + vmin;
+
+            constexpr RamVminOffsetTable RamOffset[] {
+                {2400000,     5},
+                {2533000,    10},
+                {2666000,    15},
+                {2800000,    20},
+                {2933000,    25},
+                {3200000,    30},
+                {0xFFFFFFFF, 35},
+            };
+
+            for (auto r : RamOffset) {
+                if (C.marikoEmcMaxClock < r.maxClock) {
+                    return ramScale + r.offset;
+                }
+            }
+
+            return ramScale;
+        }
 
         /* GPU Max Clock asm Pattern:
          *
@@ -157,7 +215,7 @@ namespace ams::ldr::oc::pcv {
             {                                                 },
         };
 
-        constexpr int gpuVmin = 810;
+        constexpr int GpuVminOfficial = 810;
 
         constexpr u32 CpuVoltOfficial = 1235;