feat: split syscalls into files, change max process ceiling

2026-02-22 17:23:35 +01:00
parent 99f231acd2
commit 114aa37ef8
23 changed files with 1181 additions and 872 deletions
@@ -0,0 +1,86 @@
+/*
+    * Graphics.hpp
+    * SYS_FBINFO, SYS_FBMAP, SYS_TERMSIZE, SYS_TERMSCALE syscalls
+    * Copyright (c) 2026 Daniel Hammer
+*/
+
+#pragma once
+#include <cstdint>
+#include <Sched/Scheduler.hpp>
+#include <Memory/Paging.hpp>
+#include <Memory/HHDM.hpp>
+#include <Graphics/Cursor.hpp>
+#include <Terminal/Terminal.hpp>
+
+#include "Syscall.hpp"
+#include "Common.hpp"
+#include "../Libraries/flanterm/src/flanterm.h"
+
+namespace Zenith {
+
+    static void Sys_FbInfo(FbInfo* out) {
+        if (out == nullptr) return;
+        out->width    = Graphics::Cursor::GetFramebufferWidth();
+        out->height   = Graphics::Cursor::GetFramebufferHeight();
+        out->pitch    = Graphics::Cursor::GetFramebufferPitch();
+        out->bpp      = 32;
+        out->userAddr = 0;
+    }
+
+    static uint64_t Sys_FbMap() {
+        auto* proc = Sched::GetCurrentProcessPtr();
+        if (proc == nullptr) return 0;
+
+        uint32_t* fbBase = Graphics::Cursor::GetFramebufferBase();
+        if (fbBase == nullptr) return 0;
+
+        uint64_t fbPhys = Memory::SubHHDM((uint64_t)fbBase);
+        uint64_t fbSize = Graphics::Cursor::GetFramebufferHeight()
+                        * Graphics::Cursor::GetFramebufferPitch();
+        uint64_t numPages = (fbSize + 0xFFF) / 0x1000;
+
+        Kt::KernelLogStream(Kt::INFO, "FbMap") << "fbPhys=" << kcp::hex << fbPhys
+            << " size=" << kcp::dec << fbSize
+            << " pages=" << numPages
+            << " (" << Graphics::Cursor::GetFramebufferWidth()
+            << "x" << Graphics::Cursor::GetFramebufferHeight()
+            << " pitch=" << Graphics::Cursor::GetFramebufferPitch() << ")";
+
+        // Map at a fixed user VA
+        constexpr uint64_t userVa = 0x50000000ULL;
+
+        for (uint64_t i = 0; i < numPages; i++) {
+            Memory::VMM::Paging::MapUserInWC(
+                proc->pml4Phys,
+                fbPhys + i * 0x1000,
+                userVa + i * 0x1000
+            );
+        }
+
+        return userVa;
+    }
+
+    static uint64_t Sys_TermSize() {
+        // If the process is redirected to a GUI terminal, return those dimensions
+        auto* proc = Sched::GetCurrentProcessPtr();
+        if (proc && proc->redirected) {
+            auto* target = GetRedirTarget(proc);
+            if (target && target->termCols > 0 && target->termRows > 0) {
+                return ((uint64_t)target->termRows << 32) | ((uint64_t)target->termCols & 0xFFFFFFFF);
+            }
+        }
+        size_t cols = 0, rows = 0;
+        flanterm_get_dimensions(Kt::ctx, &cols, &rows);
+        return (rows << 32) | (cols & 0xFFFFFFFF);
+    }
+
+    static int64_t Sys_TermScale(uint64_t scale_x, uint64_t scale_y) {
+        if (scale_x == 0) {
+            return (int64_t)((Kt::GetFontScaleY() << 32) | (Kt::GetFontScaleX() & 0xFFFFFFFF));
+        }
+        Kt::Rescale((size_t)scale_x, (size_t)scale_y);
+        size_t cols = 0, rows = 0;
+        flanterm_get_dimensions(Kt::ctx, &cols, &rows);
+        return (int64_t)((rows << 32) | (cols & 0xFFFFFFFF));
+    }
+};