WebSVN – HelenOS – Diff – /branches/tracing/kernel/arch/amd64/src/amd64.c

 /*
  * Copyright (c) 2005 Ondrej Palkovsky
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
+ *
  * - Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
  * - Redistributions in binary form must reproduce the above copyright
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  * - The name of the author may not be used to endorse or promote products
  *   derived from this software without specific prior written permission.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /** @addtogroup amd64
  * @{
  */
 /** @file
  */
 #include <arch.h>
 #include <arch/types.h>
 #include <config.h>
 #include <proc/thread.h>
+#include <genarch/multiboot/multiboot.h>
+#include <genarch/drivers/legacy/ia32/io.h>
-#include <arch/drivers/ega.h>
+#include <genarch/drivers/ega/ega.h>
 #include <arch/drivers/vesa.h>
+#include <genarch/drivers/i8042/i8042.h>
-#include <genarch/kbd/i8042.h>
+#include <genarch/kbrd/kbrd.h>
 #include <arch/drivers/i8254.h>
 #include <arch/drivers/i8259.h>
+#include <arch/boot/boot.h>
 #ifdef CONFIG_SMP
 #include <arch/smp/apic.h>
 #endif
 #include <arch/bios/bios.h>
 #include <arch/cpu.h>
 #include <print.h>
 #include <arch/cpuid.h>
 #include <genarch/acpi/acpi.h>
 #include <panic.h>
 #include <interrupt.h>
 #include <arch/syscall.h>
 #include <arch/debugger.h>
 #include <syscall/syscall.h>
 #include <console/console.h>
 #include <ddi/irq.h>
-#include <ddi/device.h>
+#include <sysinfo/sysinfo.h>
 /** Disable I/O on non-privileged levels
+ *
  * Clean IOPL(12,13) and NT(14) flags in EFLAGS register
  */
 static void clean_IOPL_NT_flags(void)
+{
-    asm (
+    asm volatile (
         "pushfq\n"
         "pop %%rax\n"
         "and $~(0x7000), %%rax\n"
         "pushq %%rax\n"
         "popfq\n"
-        :
-        :
-        : "%rax"
+        ::: "%rax"
     );
+}
 /** Disable alignment check
+ *
  * Clean AM(18) flag in CR0 register
  */
 static void clean_AM_flag(void)
+{
-    asm (
+    asm volatile (
         "mov %%cr0, %%rax\n"
         "and $~(0x40000), %%rax\n"
         "mov %%rax, %%cr0\n"
-        :
-        :
-        : "%rax"
+        ::: "%rax"
     );
+}
+/** Perform amd64-specific initialization before main_bsp() is called.
+ *
+ * @param signature Should contain the multiboot signature.
+ * @param mi        Pointer to the multiboot information structure.
+ */
+void arch_pre_main(uint32_t signature, const multiboot_info_t *mi)
+{
+    /* Parse multiboot information obtained from the bootloader. */
+    multiboot_info_parse(signature, mi);
+#ifdef CONFIG_SMP
+    /* Copy AP bootstrap routines below 1 MB. */
+    memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET,
+        (size_t) &_hardcoded_unmapped_size);
+#endif
+}
 void arch_pre_mm_init(void)
+{
     /* Enable no-execute pages */
     set_efer_flag(AMD_NXE_FLAG);
     /* Enable FPU */
     cpu_setup_fpu();
     /* Initialize segmentation */
     pm_init();
     /* Disable I/O on nonprivileged levels
      * clear the NT (nested-thread) flag
      */
     clean_IOPL_NT_flags();
     /* Disable alignment check */
     clean_AM_flag();
     if (config.cpu_active == 1) {
         interrupt_init();
         bios_init();
         /* PIC */
         i8259_init();
+    }
+}
 void arch_post_mm_init(void)
+{
     if (config.cpu_active == 1) {
         /* Initialize IRQ routing */
         irq_init(IRQ_COUNT, IRQ_COUNT);
         /* hard clock */
         i8254_init();
 #ifdef CONFIG_FB
         if (vesa_present())
             vesa_init();
         else
 #endif
+#ifdef CONFIG_EGA
-            ega_init(); /* video */
+            ega_init(EGA_BASE, EGA_VIDEORAM);  /* video */
+#else
+            {}
+#endif
         /* Enable debugger */
         debugger_init();
         /* Merge all memory zones to 1 big zone */
         zone_merge_all();
+    }
     /* Setup fast SYSCALL/SYSRET */
     syscall_setup_cpu();
+}
 void arch_post_cpu_init()
+{
 #ifdef CONFIG_SMP
     if (config.cpu_active > 1) {
         l_apic_init();
         l_apic_debug();
+    }
 #endif
+}
 void arch_pre_smp_init(void)
+{
     if (config.cpu_active == 1) {
 #ifdef CONFIG_SMP
         acpi_init();
 #endif /* CONFIG_SMP */
+    }
+}
 void arch_post_smp_init(void)
+{
+#ifdef CONFIG_PC_KBD
+    /*
+     * Initialize the i8042 controller. Then initialize the keyboard
+     * module and connect it to i8042. Enable keyboard interrupts.
+     */
+    i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
+    if (i8042_instance) {
+        kbrd_instance_t *kbrd_instance = kbrd_init();
-    /* keyboard controller */
+        if (kbrd_instance) {
+            indev_t *sink = stdin_wire();
+            indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
+            i8042_wire(i8042_instance, kbrd);
+            trap_virtual_enable_irqs(1 << IRQ_KBD);
+        }
+    }
+    /*
-    i8042_init(device_assign_devno(), IRQ_KBD, device_assign_devno(), IRQ_MOUSE);
+     * This is the necessary evil until the userspace driver is entirely
+     * self-sufficient.
+     */
+    sysinfo_set_item_val("kbd", NULL, true);
+    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
+    sysinfo_set_item_val("kbd.address.physical", NULL,
+        (uintptr_t) I8042_BASE);
+    sysinfo_set_item_val("kbd.address.kernel", NULL,
+        (uintptr_t) I8042_BASE);
+#endif
+}
 void calibrate_delay_loop(void)
+{
     i8254_calibrate_delay_loop();
     if (config.cpu_active == 1) {
         /*
          * This has to be done only on UP.
          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
          */
         i8254_normal_operation();
+    }
+}
 /** Set thread-local-storage pointer
+ *
  * TLS pointer is set in FS register. Unfortunately the 64-bit
  * part can be set only in CPL0 mode.
+ *
  * The specs say, that on %fs:0 there is stored contents of %fs register,
  * we need not to go to CPL0 to read it.
  */
 unative_t sys_tls_set(unative_t addr)
+{
     THREAD->arch.tls = addr;
     write_msr(AMD_MSR_FS, addr);
     return 0;
+}
 /** Acquire console back for kernel
+ *
  */
 void arch_grab_console(void)
+{
+#ifdef CONFIG_FB
+    if (vesa_present())
-    i8042_grab();
+        vesa_redraw();
+    else
+#endif
+#ifdef CONFIG_EGA
+        ega_redraw();
+#else
+        {}
+#endif
+}
 /** Return console to userspace
+ *
  */
 void arch_release_console(void)
+{
+}
+/** Construct function pointer
+ *
+ * @param fptr   function pointer structure
+ * @param addr   function address
+ * @param caller calling function address
+ *
+ * @return address of the function pointer
+ *
+ */
+void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
+{
-    i8042_release();
+    return addr;
+}
+void arch_reboot(void)
+{
+#ifdef CONFIG_PC_KBD
+    i8042_cpu_reset((i8042_t *) I8042_BASE);
+#endif
+}
 /** @}
  */

Subversion Repositories HelenOS

(root)/branches/tracing/kernel/arch/amd64/src/amd64.c – Rev 2787 → 4377