From a36d861e492b935a7a77bb908ad3b5ac902d94bc Mon Sep 17 00:00:00 2001
From: souldbminersmwc <souldbyt@gmail.com>
Date: Wed, 26 Aug 2026 11:59:52 -0400
Subject: [PATCH] actually fix gpu real hz

---
 Source/hoc-clk/bpmpfw/out/bpmpfw.bin          | Bin 5008 -> 4568 bytes
 Source/hoc-clk/sysmodule/src/board/board.cpp  |   5 +++-
 Source/hoc-clk/sysmodule/src/board/board.hpp  |   2 +-
 .../sysmodule/src/board/board_freq.cpp        |  23 ++++++++++++++++--
 4 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/Source/hoc-clk/bpmpfw/out/bpmpfw.bin b/Source/hoc-clk/bpmpfw/out/bpmpfw.bin
index 4681bab6323048e8d6d6b4642ca5e57ede0e4405..cf996ae1c5f7f84edd3eefaf94286bafe89673c1 100644
GIT binary patch
delta 782
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z*P?<lpAiUkFxW#N7V`&eu!jyFI?S}Zi{3hP5OMl_t3n^V`F`*H-uK>{_g?w>?$y}$
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z#UEo}t}L6+smi(X0*BpRGv`(LU;s@)BUDWkl|d4jzN$=xWscEwa1j}A5XFZO-H!=A
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x^5&R+>riZ)BWKkf`K?_d>{Bg%?yn}syHY8_NgaiAngTfYhRJCGe5QdzoPT49LAC$@

delta 1242
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zcDHM@3Kb`P4b`BX7YHc*66049+=xHI3ZY*SBFtpGA8mf}C6ZRh^EO)vQXf3tz3<+8
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zmh&MGqDTi=7O8-spMy?hjrvh6*PkGY=ZO4clq1(DC!te`a+#8R);QMXLYykeY2$_=
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z5w-2U>|Elr1vzOQkcO44=(cPgP@#6CE)}E!y<yV&V}Pz6nq~NeyYN4kJM!aro(1T;
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zn0MS@9{+}@9$knoXc-Q>P=Ii+p|>Z)eXxCY&|^O?dGiPOG*u8!f9#7JlD~MU=9_8#
zk9dUmgqIMj?OLCM?WtyiE%7DyDiz$+HV3iaszBSGzFtwm=c%+GgE8YYIGgq`l`8xO
zj&m>8d~G9F1p@amQo(+=(YAlBf#_sFxsj@aLWgp=M}d|z%~?kmT?(^c#fH#$TP$f$
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z;KMJiR_k?~I9ebJT}d1^Z{3xzB?^ydx~Mi~G;J2=5`P#+-a2#s^fTk-bLGkR-+n>l
zkB`3cPQEl!6yp<<=PyjW<V@|E>d`R&=lAa9dlMJ7+~lWyd&KHrQN_>!SU=^#+RpkN
Ha)k8{+I;rm

diff --git a/Source/hoc-clk/sysmodule/src/board/board.cpp b/Source/hoc-clk/sysmodule/src/board/board.cpp
index 049ec75a..692d83c5 100644
--- a/Source/hoc-clk/sysmodule/src/board/board.cpp
+++ b/Source/hoc-clk/sysmodule/src/board/board.cpp
@@ -52,7 +52,7 @@
 
 namespace board {
 
-    u64 clkVirtAddr, dsiVirtAddr, apbVirtAddr, fuseVirtAddr, sysVirtAddr, actmonVirtAddr;
+    u64 clkVirtAddr, dsiVirtAddr, apbVirtAddr, fuseVirtAddr, sysVirtAddr, actmonVirtAddr, gpuVirtAddr;
 
     HocClkSocType gSocType;
     u8 gDramID;
@@ -157,6 +157,9 @@ namespace board {
         ASSERT_RESULT_OK(rc, "QueryMemoryMapping (sys)");
         actmonVirtAddr = sysVirtAddr + 0x800;
 
+        rc = QueryMemoryMapping(&gpuVirtAddr, 0x57000000, 0x1000000);
+        ASSERT_RESULT_OK(rc, "QueryMemoryMapping (gpu)");
+
         FetchHardwareInfos();
 
         Result nvCheck = 1;
diff --git a/Source/hoc-clk/sysmodule/src/board/board.hpp b/Source/hoc-clk/sysmodule/src/board/board.hpp
index 313400af..e1d57ea5 100644
--- a/Source/hoc-clk/sysmodule/src/board/board.hpp
+++ b/Source/hoc-clk/sysmodule/src/board/board.hpp
@@ -42,7 +42,7 @@
 #define HOSSVC_HAS_TC (hosversionAtLeast(5, 0, 0))
 
 namespace board {
-    extern u64 clkVirtAddr, dsiVirtAddr, apbVirtAddr, fuseVirtAddr, sysVirtAddr, actmonVirtAddr;
+    extern u64 clkVirtAddr, dsiVirtAddr, apbVirtAddr, fuseVirtAddr, sysVirtAddr, actmonVirtAddr, gpuVirtAddr;
     extern HocClkSocType gSocType;
     extern u8 gDramID;
     extern HocClkConsoleType gConsoleType;
diff --git a/Source/hoc-clk/sysmodule/src/board/board_freq.cpp b/Source/hoc-clk/sysmodule/src/board/board_freq.cpp
index 81128498..16e0f98c 100644
--- a/Source/hoc-clk/sysmodule/src/board/board_freq.cpp
+++ b/Source/hoc-clk/sysmodule/src/board/board_freq.cpp
@@ -180,8 +180,27 @@ namespace board {
         switch (module) {
             case HocClkModule_CPU:
                 return bpmp::GetSharedInfo()->freqCpu * 1000;
-            case HocClkModule_GPU:
-                return bpmp::GetSharedInfo()->freqGpu * 1000;
+            case HocClkModule_GPU: {
+                constexpr u32 ClkOutEnbX  = 0x280;
+                constexpr u32 RstDevicesX = 0x28C;
+                constexpr u32 GpuBit      = (1u << 24);
+
+                const bool gpuEnabled = (*reinterpret_cast<volatile u32 *>(clkVirtAddr + ClkOutEnbX) & GpuBit) &&
+                                        !(*reinterpret_cast<volatile u32 *>(clkVirtAddr + RstDevicesX) & GpuBit);
+                if (!gpuEnabled) {
+                    return 0;
+                }
+
+                const u32 coeff = *reinterpret_cast<volatile u32 *>(gpuVirtAddr + 0x137004);
+                const u32 divm  = coeff & 0xFF;
+                const u32 divn  = (coeff >> 8) & 0xFF;
+                const u32 divp  = (coeff >> 16) & 0x3F;
+                if (divm == 0 || divp == 0) {
+                    return 0;
+                }
+
+                return static_cast<u32>((static_cast<u64>(38400000) * divn) / (divm * divp) / 2);
+            }
             case HocClkModule_MEM:
                 return config::GetConfigValue(HocClkConfigValue_MemoryFrequencyMeasurementMode) == MemoryFrequencyMeasurementMode_PLL
                            ? pllmb::getRamClockRatePLLMB()