Cpuid and speed *ahem* and cosmetic

Makefile

@@ -43,7 +43,8 @@ CWARNS=-Wall -Wextra -Wno-unused-parameter -Wno-implicit-fallthrough -Werror=imp
 CINCLUDES=-Iinclude
 CFLAGS1=-nostdlib -ffreestanding -mcmodel=large -std=gnu11
 CFLAGS2= -c -mno-red-zone -mno-mmx -mno-sse -mno-sse2
-CFLAGS=$(CFLAGS1) $(CFLAGS2)
+CFLAGS= $(CFLAGS1) $(CFLAGS2)
+CFLAGS_MATHS= $(CFLAGS1) -c -mno-red-zone -mno-mmx -mno-sse2
 
 ifeq ($(mode), release)
 CFLAGS += -D_NO_DEBUG
@@ -53,7 +54,11 @@ ifeq ($(mode), debug)
 CFLAGS += -g
 endif
 
-KCC=$(CCNAME) $(COPTIM) $(CWARNS) $(CFLAGS) $(CINCLUDES) -D_OSK_SOURCE -D_KALEID_KERNEL -fstack-protector-all
+KCC=$(CCNAME) $(COPTIM) $(CWARNS) $(CFLAGS) $(CINCLUDES) \
+ -D_OSK_SOURCE -D_KALEID_KERNEL -fstack-protector-all
+
+KCC_MATHS=$(CCNAME) $(COPTIM) $(CWARNS) $(CFLAGS_MATHS) $(CINCLUDES) \
+ -D_OSK_SOURCE -D_KALEID_KERNEL -fstack-protector-all
 
 # Folders
 MBRDIR=boot/grub
@@ -185,7 +190,7 @@ $(KOBJDIR)/kernel/ke/cpuid.o: $(KALEIDDIR)/kernel/ke/cpuid.c \
 	$(KALEIDDIR)/kernel/ke/cpuf.asm  | $(KOBJDIR)
 	@mkdir -p $(shell dirname $@)
 	@$(ASM) $(ASMFLAGS) $(KALEIDDIR)/kernel/ke/cpuf.asm -o $@.1
-	@$(KCC) $< -o $@.2
+	@$(KCC_MATHS) $< -o $@.2
 	@$(LD) $(LDFLAGS) -r $@.1 $@.2 -o $@
 	@rm -f $@.1 $@.2
 	@echo ${CL2}[$@] ${CL}Compiled.${CL3}

include/asm.h

@@ -130,6 +130,12 @@ static inline ushort IoReadDWordFromPort(ushort port) {
     return ret;
 }
 
+static inline ulong KeReadStsc(void) {
+    int eax, edx;
+    asm volatile ("rdtsc":"=a"(eax),"=d"(edx));
+    return ((ulong)edx << 32) + eax;
+}
+
 //------------------------------------------//
 //                Misc. I/O                 //
 //------------------------------------------//

include/ke/cpuid.h

@@ -100,9 +100,9 @@ enum {
 // Issue a single request to CPUID. Fits 'intel features', for instance
 //  note that even if only "eax" and "edx" are of interest, other registers
 //  will be modified by the operation, so we need to tell the compiler about it.
-static inline void CpuCpuid(int code, uint *a, uint *d)
+static inline void CpuCpuid(int code, uint *eax, uint *edx)
 {
-    asm volatile("cpuid":"=a"(*a),"=d"(*d):"a"(code):"ecx","ebx");
+    asm volatile("cpuid":"=a"(*eax),"=d"(*edx):"a"(code):"ecx","ebx");
 }
 
 // Issue a complete request, storing general registers output as a string
@@ -113,7 +113,9 @@ static inline int CpuCpuidString(int code, uint where[4])
     return (int)where[0];
 }
 
-void CpuGetInfos(void);
+void KeGetCpuInfos(void);
+double KeGetCpuSpeed(void);
+extern void KeActivateSSE(void);
 
 // -------------------------------------------------------------------------- //
 

kaleid/kernel/init/init.c

@@ -61,7 +61,7 @@ noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
     // Interrupts launching
     KeSetupIDT();
     KeEnableIRQs();
-    CpuGetInfos();
+    KeGetCpuInfos();
     MmInitGdt();
 
     // Start drivers

kaleid/kernel/ke/cpuf.asm

@@ -25,6 +25,7 @@
 [BITS 64]
 
 global divideByZero
+global KeActivateSSE
 
 %include "kaleid/kernel/ke/cpuf.inc"
 
@@ -34,4 +35,17 @@ global divideByZero
 divideByZero:
     ret
 
-
+;;
+;; Activating SSE
+;;
+KeActivateSSE:
+    push rax
+    mov rax, cr0
+    and ax, 0xFFFB       ;clear coprocessor emulation CR0.EM
+    or ax, 0x2           ;set coprocessor monitoring CR0.MP
+    mov cr0, rax
+    mov rax, cr4
+    or ax, 3 << 9        ;set CR4.OSFXSR and CR4.OSXMMEXCPT at the same time
+    mov cr4, rax
+    pop rax
+    ret

kaleid/kernel/ke/cpuid.c

@@ -25,19 +25,48 @@
 #include <ke/cpuid.h>
 #include <io/vga.h>
 
-void CpuGetInfos(void)
+void KeGetCpuInfos(void)
 {
     uint CpuVendorString[5] = {0};
     extern CpuInfo_t CpuInfo;
+    uint eax = 0;
 
     CpuCpuidString(0, CpuVendorString);
 
     memmove(CpuInfo.vendorStr, (char *)&CpuVendorString[1], 12*sizeof(char));
 
-    KernLog("\tCPU %s detected\n", CpuInfo.vendorStr);
+    CpuCpuid(1, &eax, &CpuInfo.featureFlag);
+
+    if (CpuInfo.featureFlag & FEAT_EDX_SSE) {
+        KeActivateSSE();
+    }
+
+    DebugLog("\tCPU %s detected with features %#x and ?? speed %#d Hz ??\n",
+             CpuInfo.vendorStr,
+             CpuInfo.featureFlag,
+             (long)KeGetCpuSpeed()
+             );
 }
 
 
-
+double KeGetCpuSpeed(void)
+{
+    ulong flags = KePauseIRQs();
+
+    IoWriteByteOnPort(0x43,0x34);   // set PIT channel 0 to single-shot mode
+    IoWriteByteOnPort(0x40,0);
+    IoWriteByteOnPort(0x40,0);      // program the counter will be
+                                    // 0x10000 - n after n ticks
+    long stsc = KeReadStsc();
+    for (int i=0x9000;i>0;i--);
+    long etsc= KeReadStsc();
+    IoWriteByteOnPort(0x43,0x04);
+    char lo=IoReadByteFromPort(0x40);
+    char hi=IoReadByteFromPort(0x40);
+    KeRestoreIRQs(flags);
+
+    ulong ticks = (0x10000 - (hi*256+lo));
+    return (etsc-stsc)*1193180.0 / ticks;
+}
 
 

kaleid/kernel/ke/idt.c

@@ -183,7 +183,8 @@ void KeSetupIDT(void)
 
     // Load IDT
     KeLoadIDT();
-    DebugLog("\tInterrupt table initialized at %p\n", _KeIdtPtr.base);
+    //DebugLog("\tInterrupt table initialized at %p\n", _KeIdtPtr.base);
+    KernLog("\tInterrupts activated\n");
 }
 
 //

kaleid/kernel/mm/paging.c

@@ -108,8 +108,8 @@ void MmInitPaging(void)
     MmPML4[0] = (ulong)(&MmPDP[0])| MF_PRESENT | MF_READWRITE;
 
     MmLoadPML4((void *)MmPML4);
-    DebugLog("\tPaging tables initialized at %p, %p\n", &MmPD, &MmPT);
+    //DebugLog("\tPaging tables initialized at %p, %p\n", &MmPD, &MmPT);
-    DebugLog("\tStack Guards at %p, %p\n", MmStackGuards[0], MmStackGuards[1]);
+    //DebugLog("\tStack Guards at %p, %p\n", MmStackGuards[0], MmStackGuards[1]);
 }
 
 //

kaleid/kernel/sh/musage.c

@@ -54,85 +54,206 @@ error_t CmdMemUsage(int argc, char **argv, char *cmdline)
 
     KernLog("Kernel image\n");
 
-    KernLog("\tstarts at:\t\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cstarts at:\t\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
-                BtLoaderInfo.kernelAddr,
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                (size_t)BtLoaderInfo.kernelAddr,
                 _ADDR_TO_MB((size_t)BtLoaderInfo.kernelAddr),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB((size_t)BtLoaderInfo.kernelAddr),
-                _ADDR_TO_B((size_t)BtLoaderInfo.kernelAddr));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B((size_t)BtLoaderInfo.kernelAddr),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tends at:\t\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cends at:\t\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 (size_t)BtLoaderInfo.kernelEndAddr,
                 _ADDR_TO_MB((size_t)BtLoaderInfo.kernelEndAddr),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB((size_t)BtLoaderInfo.kernelEndAddr),
-                _ADDR_TO_B((size_t)BtLoaderInfo.kernelEndAddr));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B((size_t)BtLoaderInfo.kernelEndAddr),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tsize:\t\t\t%4luMB + %4luKB + %4luB (%p)\n",
+    KernLog("\t%Csize:\t\t\t%C%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C (%p)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_MB(img_diff),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(img_diff),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_B(img_diff),
-                img_diff);
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                img_diff
+            );
+
 
     KernLog("Kernel stack\n");
 
-    KernLog("\tstarts at:\t\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cstarts at:\t\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
-                BtLoaderInfo.stackEndAddr,
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                (size_t)BtLoaderInfo.stackEndAddr,
                 _ADDR_TO_MB((size_t)BtLoaderInfo.stackEndAddr),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB((size_t)BtLoaderInfo.stackEndAddr),
-                _ADDR_TO_B((size_t)BtLoaderInfo.stackEndAddr));
+                VGA_COLOR_DARK_GREY,
-    
+                shcol,
-    KernLog("\tcurrently at:\t%p (%4luMB + %4luKB + %4luB)\n",
+                _ADDR_TO_B((size_t)BtLoaderInfo.stackEndAddr),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
+
+    KernLog("\t%Ccurrently at:\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 (size_t)&var,
                 _ADDR_TO_MB((size_t)&var),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB((size_t)&var),
-                _ADDR_TO_B((size_t)&var));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B((size_t)&var),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tmin address:\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cmin address:\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 (size_t)BtLoaderInfo.kernelEndAddr+16,
                 _ADDR_TO_MB((size_t)BtLoaderInfo.kernelEndAddr+16),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB((size_t)BtLoaderInfo.kernelEndAddr+16),
-                _ADDR_TO_B((size_t)BtLoaderInfo.kernelEndAddr+16));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B((size_t)BtLoaderInfo.kernelEndAddr+16),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tsize (cur):\t\t%4luMB + %4luKB + %4luB (%p)\n",
+
+    KernLog("\t%Csize (cur):\t%C%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C (%p)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_MB(stack_cur),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(stack_cur),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_B(stack_cur),
-                stack_cur);
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                stack_cur
+            );
 
-    KernLog("\tsize (max):\t\t%4luMB + %4luKB + %4luB (%p)\n",
+    KernLog("\t%Csize (max):\t%C%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C (%p)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_MB(stack_diff),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(stack_diff),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_B(stack_diff),
-                stack_diff);
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                stack_diff
+            );
 
     KernLog("Kernel heap\n");
 
-    KernLog("\tstarts at:\t\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cstarts at:\t\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
-                heap_start, _ADDR_TO_MB(heap_start),
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                heap_start,
+                _ADDR_TO_MB(heap_start),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(heap_start),
-                _ADDR_TO_B(heap_start));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B(heap_start),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tends at:\t\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cends at:\t\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
-                heap_end, _ADDR_TO_MB(heap_end),
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                heap_end,
+                _ADDR_TO_MB(heap_end),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(heap_end),
-                _ADDR_TO_B(heap_end));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B(heap_end),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tmax addr:\t\t%p (%4luMB + %4luKB + %4luB)\n",
+    KernLog("\t%Cmax addr:\t\t%C%p (%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 heap_start + heap_max,
                 _ADDR_TO_MB(heap_start + heap_max),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(heap_start + heap_max),
-                _ADDR_TO_B(heap_start + heap_max));
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                _ADDR_TO_B(heap_start + heap_max),
+                VGA_COLOR_DARK_GREY,
+                shcol
+            );
 
-    KernLog("\tsize (cur):\t\t%4luMB + %4luKB + %4luB (%p)\n",
+    KernLog("\t%Csize (cur):\t%C%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C (%p)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_MB(heap_diff),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(heap_diff),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_B(heap_diff),
-                heap_diff);
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                heap_diff
+            );
 
-    KernLog("\tsize (max):\t\t%4luMB + %4luKB + %4luB (%p)\n",
+    KernLog("\t%Csize (max):\t%C%4lu%CMB%C + %4lu%CKB%C + %4lu%CB%C (%p)\n",
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_MB(heap_max),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_KB(heap_max),
+                VGA_COLOR_DARK_GREY,
+                shcol,
                 _ADDR_TO_B(heap_max),
-                heap_max);
+                VGA_COLOR_DARK_GREY,
+                shcol,
+                heap_max
+            );
 
     return EOK;
 }

kaleid/kernel/sh/shcmds.c

@@ -97,6 +97,11 @@ error_t CmdColor(int argc, char **argv, char *cmdline)
     return EOK;
 }
 
+error_t CmdCpuid(int argc, char **argv, char *cmdline)
+{
+    return EOK;
+}
+
 error_t CmdDate(int argc, char **argv, char *cmdline)
 {
     KernLog("%.10s\n", KeFormatCurTime());
@@ -228,13 +233,13 @@ error_t CmdVersion(int argc, char **argv, char *cmdline)
 }
 
 //----------------------------------------------------------------------------//
-
 Command_t cmdtable[] =
 {
     { "args",       CmdArgs,            "Print command line" },
     { "beep",       CmdBeep,            "Make a beep" },
     { "cls",        CmdClear,           "Clears standard output" },
     { "color",      CmdColor,           "Change shell text color" },
+    { "cpuid",      CmdCpuid,           "Request a cpuid info."    },
     { "date",       CmdDate,            "Print date" },
     { "die",        CmdDie,             "Die painfully" },
     { "help",       CmdHelp,            "Show this message" },

kaleid/kernel/sh/shell.h

@@ -34,6 +34,7 @@
 #include <io/keyb.h>
 #include <io/vga.h>
 #include <po/shtdwn.h>
+#include <ke/cpuid.h>
 
 void IoScrollDown(void);
 void IoScrollUp(void);