1 files changed, 0 insertions, 182 deletions
diff --git a/libs/libc/cpu.c b/libs/libc/cpu.c
deleted file mode 100644
index 7fbb66a..0000000
--- a/libs/libc/cpu.c
+++ /dev/null
@@ -1,182 +0,0 @@
-// MIT License, Copyright (c) 2020 Marvin Borner
-// This file is a wrapper around some CPU asm calls
-
-#include <cpu.h>
-#include <def.h>
-#include <print.h>
-
-u8 inb(u16 port)
-{
-	u8 value;
-	__asm__ volatile("inb %1, %0" : "=a"(value) : "Nd"(port));
-	return value;
-}
-
-u16 inw(u16 port)
-{
-	u16 value;
-	__asm__ volatile("inw %1, %0" : "=a"(value) : "Nd"(port));
-	return value;
-}
-
-u32 inl(u16 port)
-{
-	u32 value;
-	__asm__ volatile("inl %1, %0" : "=a"(value) : "Nd"(port));
-	return value;
-}
-
-void insl(u16 port, void *addr, int n)
-{
-	__asm__ volatile("rep insl" ::"c"(n), // Count
-			 "d"(port), // Port #
-			 "D"(addr)); // Buffer
-}
-
-void outb(u16 port, u8 data)
-{
-	__asm__ volatile("outb %0, %1" ::"a"(data), "Nd"(port));
-}
-
-void outw(u16 port, u16 data)
-{
-	__asm__ volatile("outw %0, %1" ::"a"(data), "Nd"(port));
-}
-
-void outl(u16 port, u32 data)
-{
-	__asm__ volatile("outl %0, %1" ::"a"(data), "Nd"(port));
-}
-
-#ifdef KERNEL
-
-static void cpuid(int code, u32 *a, u32 *b, u32 *c, u32 *d)
-{
-	__asm__ volatile("cpuid" : "=a"(*a), "=b"(*b), "=c"(*c), "=d"(*d) : "a"(code));
-}
-
-static char *cpu_string(char buf[16])
-{
-	// wtf
-	cpuid(CPUID_VENDOR_STRING, (u32 *)(buf + 12), (u32 *)(buf), (u32 *)(buf + 8),
-	      (u32 *)(buf + 4));
-
-	return buf;
-}
-
-void cpu_print(void)
-{
-	char buf[16] = { 0 };
-	printf("CPU vendor: %s\n", cpu_string(buf));
-}
-
-u32 cr0_get(void)
-{
-	u32 cr0;
-	__asm__ volatile("movl %%cr0, %%eax" : "=a"(cr0));
-	return cr0;
-}
-
-void cr0_set(u32 cr0)
-{
-	__asm__ volatile("movl %%eax, %%cr0" ::"a"(cr0));
-}
-
-u32 cr3_get(void)
-{
-	u32 cr3;
-	__asm__ volatile("movl %%cr0, %%eax" : "=a"(cr3));
-	return cr3;
-}
-
-void cr3_set(u32 cr3)
-{
-	__asm__ volatile("movl %%eax, %%cr3" ::"a"(cr3));
-}
-
-u32 cr4_get(void)
-{
-	u32 cr4;
-	__asm__ volatile("movl %%cr4, %%eax" : "=a"(cr4));
-	return cr4;
-}
-
-void cr4_set(u32 cr4)
-{
-	__asm__ volatile("movl %%eax, %%cr4" ::"a"(cr4));
-}
-
-static u32 cpu_cfeatures = 0;
-u8 cpu_has_cfeature(enum cpuid_features feature)
-{
-	return (cpu_cfeatures & feature) != 0;
-}
-
-static u32 cpu_dfeatures = 0;
-u8 cpu_has_dfeature(enum cpuid_features feature)
-{
-	return (cpu_dfeatures & feature) != 0;
-}
-
-static void fpu_handler(struct regs *r)
-{
-	UNUSED(r);
-	__asm__ volatile("clts");
-}
-
-static u8 fpu_state[512] ALIGNED(16);
-void fpu_restore(void)
-{
-	__asm__ volatile("fxrstor (%0)" ::"r"(fpu_state));
-}
-
-void cpu_enable_features(void)
-{
-	u32 a, b, c, d;
-	cpuid(CPUID_FEATURES, &a, &b, &c, &d);
-	cpu_cfeatures = c;
-	cpu_dfeatures = d;
-	if (cpu_has_dfeature(CPUID_FEAT_EDX_SSE)) {
-		cr0_set(cr0_get() & ~(1 << 2));
-		cr0_set(cr0_get() | (1 << 1));
-		cr4_set(cr4_get() | (3 << 9));
-	} else {
-		panic("No SSE support!\n");
-	}
-
-	if (cpu_has_dfeature(CPUID_FEAT_EDX_FPU)) {
-		__asm__ volatile("fninit");
-		__asm__ volatile("fxsave %0" : "=m"(fpu_state));
-		irq_install_handler(7, fpu_handler);
-	} else {
-		panic("No FPU support!\n");
-	}
-}
-
-void cli(void)
-{
-	__asm__ volatile("cli");
-}
-
-void sti(void)
-{
-	__asm__ volatile("sti");
-}
-
-void hlt(void)
-{
-	__asm__ volatile("hlt");
-}
-
-void idle(void)
-{
-	while (1)
-		hlt();
-}
-
-void loop(void)
-{
-	cli();
-	idle();
-}
-#endif