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Kernel: Put code in the aarch64 init.cpp file into the Kernel namespace
This commit is contained in:
Timon Kruiper
Linus Groh
parent
9282e0db16
commit
18cad73b01
Notes:
sideshowbarker
2024-07-17 10:55:48 +09:00
Author: https://github.com/FireFox317 Commit: https://github.com/SerenityOS/serenity/commit/18cad73b01 Pull-request: https://github.com/SerenityOS/serenity/pull/13996 Reviewed-by: https://github.com/linusg ✅ Reviewed-by: https://github.com/nico
@ -20,9 +20,6 @@
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#include <Kernel/KSyms.h>
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#include <Kernel/Panic.h>
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static void draw_logo();
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static u32 query_firmware_version();
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struct TrapFrame {
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u64 x[31]; // Saved general purpose registers
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u64 spsr_el1; // Save Processor Status Register, EL1
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@ -31,78 +28,7 @@ struct TrapFrame {
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u64 sp_el0; // EL0 stack pointer
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};
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extern "C" [[noreturn]] void halt();
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extern "C" [[noreturn]] void init();
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extern "C" void exception_common(TrapFrame const* const trap_frame);
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typedef void (*ctor_func_t)();
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extern ctor_func_t start_heap_ctors[];
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extern ctor_func_t end_heap_ctors[];
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extern ctor_func_t start_ctors[];
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extern ctor_func_t end_ctors[];
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ALWAYS_INLINE static Kernel::Processor& bootstrap_processor()
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{
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alignas(Kernel::Processor) static u8 bootstrap_processor_storage[sizeof(Kernel::Processor)];
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return (Kernel::Processor&)bootstrap_processor_storage;
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}
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extern "C" [[noreturn]] void init()
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{
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dbgln("Welcome to Serenity OS!");
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dbgln("Imagine this being your ideal operating system.");
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dbgln("Observed deviations from that ideal are shortcomings of your imagination.");
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dbgln();
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new (&bootstrap_processor()) Kernel::Processor();
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bootstrap_processor().initialize(0);
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// We call the constructors of kmalloc.cpp separately, because other constructors in the Kernel
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// might rely on being able to call new/kmalloc in the constructor. We do have to run the
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// kmalloc constructors, because kmalloc_init relies on that.
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for (ctor_func_t* ctor = start_heap_ctors; ctor < end_heap_ctors; ctor++)
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(*ctor)();
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kmalloc_init();
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for (ctor_func_t* ctor = start_ctors; ctor < end_ctors; ctor++)
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(*ctor)();
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Kernel::load_kernel_symbol_table();
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auto firmware_version = query_firmware_version();
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dbgln("Firmware version: {}", firmware_version);
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dbgln("Initialize MMU");
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Kernel::init_prekernel_page_tables();
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auto& framebuffer = Kernel::Framebuffer::the();
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if (framebuffer.initialized()) {
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draw_logo();
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}
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dbgln("Enter loop");
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auto& timer = Kernel::Timer::the();
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u64 start_musec = 0;
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for (;;) {
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u64 now_musec;
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while ((now_musec = timer.microseconds_since_boot()) - start_musec < 1'000'000)
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;
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start_musec = now_musec;
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dbgln("Timer: {}", now_musec);
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}
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}
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// FIXME: Share this with the Intel Prekernel.
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extern size_t __stack_chk_guard;
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size_t __stack_chk_guard;
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extern "C" [[noreturn]] void __stack_chk_fail();
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void __stack_chk_fail()
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{
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Kernel::Processor::halt();
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}
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extern "C" void exception_common(TrapFrame const* const trap_frame)
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{
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constexpr bool print_stack_frame = true;
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@ -122,12 +48,88 @@ extern "C" void exception_common(TrapFrame const* const trap_frame)
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}
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}
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class QueryFirmwareVersionMboxMessage : Kernel::Mailbox::Message {
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typedef void (*ctor_func_t)();
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extern ctor_func_t start_heap_ctors[];
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extern ctor_func_t end_heap_ctors[];
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extern ctor_func_t start_ctors[];
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extern ctor_func_t end_ctors[];
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// FIXME: Share this with the Intel Prekernel.
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extern size_t __stack_chk_guard;
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size_t __stack_chk_guard;
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extern "C" [[noreturn]] void __stack_chk_fail();
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void __stack_chk_fail()
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{
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Kernel::Processor::halt();
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}
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namespace Kernel {
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static void draw_logo();
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static u32 query_firmware_version();
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extern "C" [[noreturn]] void halt();
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extern "C" [[noreturn]] void init();
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ALWAYS_INLINE static Processor& bootstrap_processor()
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{
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alignas(Processor) static u8 bootstrap_processor_storage[sizeof(Processor)];
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return (Processor&)bootstrap_processor_storage;
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}
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extern "C" [[noreturn]] void init()
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{
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dbgln("Welcome to Serenity OS!");
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dbgln("Imagine this being your ideal operating system.");
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dbgln("Observed deviations from that ideal are shortcomings of your imagination.");
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dbgln();
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new (&bootstrap_processor()) Processor();
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bootstrap_processor().initialize(0);
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// We call the constructors of kmalloc.cpp separately, because other constructors in the Kernel
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// might rely on being able to call new/kmalloc in the constructor. We do have to run the
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// kmalloc constructors, because kmalloc_init relies on that.
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for (ctor_func_t* ctor = start_heap_ctors; ctor < end_heap_ctors; ctor++)
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(*ctor)();
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kmalloc_init();
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for (ctor_func_t* ctor = start_ctors; ctor < end_ctors; ctor++)
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(*ctor)();
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load_kernel_symbol_table();
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auto firmware_version = query_firmware_version();
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dbgln("Firmware version: {}", firmware_version);
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dbgln("Initialize MMU");
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init_prekernel_page_tables();
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auto& framebuffer = Framebuffer::the();
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if (framebuffer.initialized()) {
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draw_logo();
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}
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dbgln("Enter loop");
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auto& timer = Timer::the();
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u64 start_musec = 0;
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for (;;) {
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u64 now_musec;
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while ((now_musec = timer.microseconds_since_boot()) - start_musec < 1'000'000)
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;
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start_musec = now_musec;
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dbgln("Timer: {}", now_musec);
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}
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}
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class QueryFirmwareVersionMboxMessage : Mailbox::Message {
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public:
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u32 version;
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QueryFirmwareVersionMboxMessage()
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: Kernel::Mailbox::Message(0x0000'0001, 4)
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: Mailbox::Message(0x0000'0001, 4)
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{
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version = 0;
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}
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@ -136,12 +138,12 @@ public:
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static u32 query_firmware_version()
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{
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struct __attribute__((aligned(16))) {
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Kernel::Mailbox::MessageHeader header;
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Mailbox::MessageHeader header;
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QueryFirmwareVersionMboxMessage query_firmware_version;
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Kernel::Mailbox::MessageTail tail;
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Mailbox::MessageTail tail;
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} message_queue;
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if (!Kernel::Mailbox::the().send_queue(&message_queue, sizeof(message_queue))) {
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if (!Mailbox::the().send_queue(&message_queue, sizeof(message_queue))) {
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return 0xffff'ffff;
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}
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@ -153,7 +155,7 @@ extern "C" const u32 serenity_boot_logo_size;
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static void draw_logo()
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{
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Kernel::BootPPMParser logo_parser(reinterpret_cast<u8 const*>(&serenity_boot_logo_start), serenity_boot_logo_size);
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BootPPMParser logo_parser(reinterpret_cast<u8 const*>(&serenity_boot_logo_start), serenity_boot_logo_size);
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if (!logo_parser.parse()) {
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dbgln("Failed to parse boot logo.");
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return;
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@ -161,7 +163,7 @@ static void draw_logo()
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dbgln("Boot logo size: {} ({} x {})", serenity_boot_logo_size, logo_parser.image.width, logo_parser.image.height);
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auto& framebuffer = Kernel::Framebuffer::the();
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auto& framebuffer = Framebuffer::the();
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auto fb_ptr = framebuffer.gpu_buffer();
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auto image_left = (framebuffer.width() - logo_parser.image.width) / 2;
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auto image_right = image_left + logo_parser.image.width;
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@ -173,12 +175,12 @@ static void draw_logo()
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for (u32 x = 0; x < framebuffer.width(); x++) {
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if (x >= image_left && x < image_right && y >= image_top && y < image_bottom) {
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switch (framebuffer.pixel_order()) {
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case Kernel::Framebuffer::PixelOrder::RGB:
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case Framebuffer::PixelOrder::RGB:
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fb_ptr[0] = logo_pixels[0];
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fb_ptr[1] = logo_pixels[1];
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fb_ptr[2] = logo_pixels[2];
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break;
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case Kernel::Framebuffer::PixelOrder::BGR:
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case Framebuffer::PixelOrder::BGR:
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fb_ptr[0] = logo_pixels[2];
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fb_ptr[1] = logo_pixels[1];
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fb_ptr[2] = logo_pixels[0];
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@ -201,3 +203,5 @@ static void draw_logo()
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fb_ptr += framebuffer.pitch() - framebuffer.width() * 4;
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}
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}
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}
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