refactor: decouple i386 specific instruction invocation

[lunaix-os.git] / lunaix-os / hal / cpu.c

diff --git a/lunaix-os/hal/cpu.c b/lunaix-os/hal/cpu.c
deleted file mode 100644 (file)
index 77059b6..0000000
--- a/lunaix-os/hal/cpu.c
+++ /dev/null
@@ -1,81 +0,0 @@
-#include <cpuid.h>
-#include <hal/cpu.h>
-#include <hal/rnd.h>
-#include <stdint.h>
-
-void
-cpu_get_model(char* model_out)
-{
-    u32_t* out = (u32_t*)model_out;
-    reg32 eax = 0, ebx = 0, edx = 0, ecx = 0;
-
-    __get_cpuid(0, &eax, &ebx, &ecx, &edx);
-
-    out[0] = ebx;
-    out[1] = edx;
-    out[2] = ecx;
-    model_out[12] = '\0';
-}
-
-#define BRAND_LEAF 0x80000000UL
-
-int
-cpu_brand_string_supported()
-{
-    reg32 supported = __get_cpuid_max(BRAND_LEAF, 0);
-    return (supported >= 0x80000004UL);
-}
-
-void
-cpu_get_brand(char* brand_out)
-{
-    if (!cpu_brand_string_supported()) {
-        brand_out[0] = '?';
-        brand_out[1] = '\0';
-    }
-    u32_t* out = (u32_t*)brand_out;
-    reg32 eax = 0, ebx = 0, edx = 0, ecx = 0;
-    for (u32_t i = 2, j = 0; i < 5; i++) {
-        __get_cpuid(BRAND_LEAF + i, &eax, &ebx, &ecx, &edx);
-        out[j] = eax;
-        out[j + 1] = ebx;
-        out[j + 2] = ecx;
-        out[j + 3] = edx;
-        j += 4;
-    }
-    brand_out[48] = '\0';
-}
-
-int
-cpu_has_apic()
-{
-    // reference: Intel manual, section 10.4.2
-    reg32 eax = 0, ebx = 0, edx = 0, ecx = 0;
-    __get_cpuid(1, &eax, &ebx, &ecx, &edx);
-
-    return (edx & 0x100);
-}
-
-void
-cpu_rdmsr(u32_t msr_idx, u32_t* reg_high, u32_t* reg_low)
-{
-    u32_t h = 0, l = 0;
-    asm volatile("rdmsr" : "=d"(h), "=a"(l) : "c"(msr_idx));
-
-    *reg_high = h;
-    *reg_low = l;
-}
-
-void
-cpu_wrmsr(u32_t msr_idx, u32_t reg_high, u32_t reg_low)
-{
-    asm volatile("wrmsr" : : "d"(reg_high), "a"(reg_low), "c"(msr_idx));
-}
-
-int
-rnd_is_supported()
-{
-    reg32 eax = 0, ebx = 0, ecx = 0, edx = 0;
-    __get_cpuid(0x01, &eax, &ebx, &ecx, &edx);
-    return (ecx & (1 << 30));
-}
\ No newline at end of file