daniel/MontaukOS
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat: userspace overhaul, Intel GPU driver, and more

Browse Source
This commit is contained in:
Daniel Hammer
2026-02-19 15:46:49 +01:00
parent d355d376f9
commit cae7dd352e
55 changed files with 9080 additions and 270 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/src/Main.cpp
+45 -2
View File
@@ -35,9 +35,11 @@
#include <Drivers/PS2/Mouse.hpp>
#include <Drivers/Net/E1000.hpp>
#include <Drivers/Net/E1000E.hpp>
#include <Drivers/Graphics/IntelGPU.hpp>
#include <Net/Net.hpp>
#include <CppLib/BoxUI.hpp>
#include <Graphics/Cursor.hpp>
#include <Hal/MSR.hpp>
#include <Fs/Ramdisk.hpp>
#include <Fs/Vfs.hpp>
#include <Sched/Scheduler.hpp>
@@ -138,7 +140,38 @@ extern "C" void kmain() {
Memory::VMM::g_paging = &g_paging;
g_paging.Init((uint64_t)&KernelStartSymbol, ((uint64_t)&KernelEndSymbol - (uint64_t)&KernelStartSymbol), memmap_request.response);
// Reprogram PAT so entry 1 = Write-Combining (default is Write-Through).
// Must be done after paging init and before any WC mappings.
Hal::InitializePAT();
Kt::KernelLogStream(OK, "Hal") << "PAT reprogrammed (entry 1 = WC)";
#endif
// Initialize Cursor early so we can WC-map the framebuffer before
// the bulk of boot logging begins (ACPI, PCI, drivers, etc.)
Graphics::Cursor::Initialize(framebuffer);
#if defined (__x86_64__)
// Map framebuffer as Write-Combining immediately for faster screen writes.
// All subsequent log output benefits from WC burst transfers.
{
uint64_t fbPhys = Graphics::Cursor::GetFramebufferPhysBase();
uint64_t fbSize = Graphics::Cursor::GetFramebufferHeight()
* Graphics::Cursor::GetFramebufferPitch();
uint64_t numPages = (fbSize + 0xFFF) / 0x1000;
for (uint64_t i = 0; i < numPages; i++) {
uint64_t phys = fbPhys + i * 0x1000;
g_paging.MapWC(phys, Memory::HHDM(phys));
}
asm volatile("mov %%cr3, %%rax; mov %%rax, %%cr3" ::: "rax", "memory");
Kt::KernelLogStream(OK, "Graphics") << "Framebuffer mapped as Write-Combining ("
<< kcp::dec << numPages << " pages)";
}
#endif
Hal::ACPI g_acpi((Hal::ACPI::XSDP*)Memory::HHDM(rsdp_request.response->address));
#if defined (__x86_64__)
@@ -147,6 +180,18 @@ extern "C" void kmain() {
Pci::Initialize(g_acpi.GetXSDT());
// Intel GPU driver — initialize right after PCI so the native
// driver takes over early and all subsequent logs use it.
Drivers::Graphics::IntelGPU::Initialize();
if (Drivers::Graphics::IntelGPU::IsInitialized()) {
Graphics::Cursor::SetFramebuffer(
Drivers::Graphics::IntelGPU::GetFramebufferBase(),
Drivers::Graphics::IntelGPU::GetWidth(),
Drivers::Graphics::IntelGPU::GetHeight(),
Drivers::Graphics::IntelGPU::GetPitch()
);
}
Timekeeping::ApicTimerInitialize();
Drivers::PS2::Initialize();
@@ -199,8 +244,6 @@ extern "C" void kmain() {
};
Fs::Vfs::RegisterDrive(0, &ramdiskDriver);
Graphics::Cursor::Initialize(framebuffer);
Hal::LoadTSS();
Zenith::InitializeSyscalls();