/**
 *  @file
 *  F00l 0S

REFERENCES
==========

    http://www.brokenthorn.com/Resources/OSDev17.html
    http://www.jamesmolloy.co.uk/tutorial_html/9.-Multitasking.html
    http://pdos.csail.mit.edu/6.828/2011/labs/lab6/
    http://pdos.csail.mit.edu/6.828/2011/xv6.html
    http://www.nongnu.org/ext2-doc/
    http://www.osdever.net/tutorials/view/multiprocessing-support-for-hobby-oses-explained
    http://forum.osdev.org/viewtopic.php?f=1&t=10944
    http://wiki.osdev.org/Virtual_8086_Mode
    http://wiki.xomb.org/index.php?title=ACPI_Tables
    http://wiki.osdev.org/Hosted_GCC_Cross-Compiler
    https://sourceware.org/newlib/
    and many many more...
*/

#ifndef FOOLOS_CONFIG_H
#define FOOLOS_CONFIG_H

//#define FOOLOS_UNIT_TESTING // Run Unit Tests
//#define FOOLOS_LOG_OFF  // Turn off logging
//#define FOOLOS_COLORLESS  // Turn off colors in log

#define MAX_MOUNTS 10

#define BIN_INIT "/bin/init"

#define FIFO_MAX_RINGBUFFERS 20
#define MAX_FIFOS 20
#define MAX_FD 20
#define MAX_TASKS 10
#define MEM_PRINT_MEMORYMAP

#define KMALLOC_MEM_SIZE    1024*1024*8  // 8MB for in kernel-memory
#define KMALLOC_BLOCK_SIZE  1024*4     // 4096 per block

#define NUMBER_SPINLOCKS 16
#define SPINLOCK_LOG 0
#define SPINLOCK_ALLOC 1
#define SPINLOCK_PID 2

#define S1(x) #x
#define S2(x) S1(x)

#define SMP_MAX_PROC 16 // 16 (together with bsp) We can currently only address a maximum of 16 cpus via ipis! 

// Virtual Memory Locations //
// REMEMBER THAT THE STACKS GROW DOWNWARDS //
// We leave some space around them
// 1 page 0x1000 bytes
// 8192 pages = 0x2000000 bytes
// minimal space between user and kernel pages 1024 pages!

#define VMEM_KERNEL          0x00000000 // 8192 pages (32megs) / identity mapped
//      VMEM_KERNEL END      0x02000000 

#define VMEM_USER_ENV        0x07000000 // 1    page           / per user process 

#define VMEM_USER_PROG_PAGES 256
#define VMEM_USER_PROG       0x08048000 // ?    pages          / per user process (usual entry: 0x8048080)

#define VMEM_USER_STACK_PAGES  4          // 4    pages          / per thread 
#define VMEM_USER_STACK_TOP    0xF0000000 // 4    pages          / per thread 

#define VMEM_LAPIC             0xF0005000 // 1    pages          / identity mapped
#define VMEM_IOAPIC            0xF0006000 // 1    pages          / identity mapped
#define VMEM_CPU_PRIVATE       0xF000A000 // 4    pages          / per cpu

#define VMEM_CPU_STACK_PAGES 4          // 4    pages          / per thread 
#define VMEM_CPU_STACK_TOP   0xF3000000 // 4    pages          / per cpu 

#define VMEM_COPY_PAGE       0xF4000000 // 1    page           / temporery map-in tables for copying

//TODO: do not hardcode in crt0.s!!!!
#define VMEM_USER_NEWLIB     0xF5000000 // 1    page           / newlib reentrancy struct. 1 per thread

#define VMEM_FRAMEBUFFER     0xF6000000 // 8192 pages (32megs) / identity mapped 
#define VMEM_EXT2_RAMIMAGE   0xF8000000 // 8192 pages (32megs) / identity mapped

#endif