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Ignore whitespace Rev 2464 → Rev 2465

/trunk/kernel/arch/arm32/include/asm/boot.h
0,0 → 1,62
/*
* Copyright (c) 2007 Michal Kebrt
* 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 arm32
* @{
*/
/** @file
* @brief Initial kernel start.
*/
 
#ifndef KERN_arm32_ASM_BOOT_H_
#define KERN_arm32_ASM_BOOT_H_
 
/** Size of a temporary stack used for initial kernel start. */
#define TEMP_STACK_SIZE 0x100
 
#ifndef __ASM__
 
/** Kernel entry point.
*
* Implemented in assembly. Copies boot_bootinfo (declared as bootinfo in
* boot/arch/arm32/loader/main.c) to #bootinfo struct. Then jumps to
* #arch_pre_main and #main_bsp.
*
* @param entry Entry point address (not used).
* @param boot_bootinfo Struct holding information about loaded tasks.
* @param bootinfo_size Size of the bootinfo structure.
*/
extern void kernel_image_start(void *entry, void *boot_bootinfo,
unsigned int bootinfo_size);
 
#endif
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/interrupt.h
1,5 → 1,5
/*
* Copyright (c) 2005 Jakub Jermar
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
27,18 → 27,31
*/
 
/** @addtogroup arm32interrupt
* @ingroup interrupt
* @{
*/
/** @file
* @brief Declarations of interrupt controlling routines.
*/
 
#ifndef KERN_arm32_INTERRUPT_H_
#define KERN_arm32_INTERRUPT_H_
 
#define IVT_ITEMS 0 /* TODO */
#define IVT_FIRST 0 /* TODO */
#include <arch/types.h>
 
/** Initial size of exception dispatch table. */
#define IVT_ITEMS 6
 
/** Index of the first item in exception dispatch table. */
#define IVT_FIRST 0
 
 
extern void interrupt_init(void);
extern ipl_t interrupts_disable(void);
extern ipl_t interrupts_enable(void);
extern void interrupts_restore(ipl_t ipl);
extern ipl_t interrupts_read(void);
 
 
#endif
 
/** @}
/trunk/kernel/arch/arm32/include/fpu_context.h
1,5 → 1,5
/*
* Copyright (c) 2005 Jakub Vana
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,9
* @{
*/
/** @file
* @brief FPU context (not implemented).
*
* GXemul doesn't support FPU on its ARM CPU.
*/
 
#ifndef KERN_arm32_FPU_CONTEXT_H_
37,7 → 40,7
 
#include <arch/types.h>
 
#define FPU_CONTEXT_ALIGN 0 /* TODO */
#define FPU_CONTEXT_ALIGN 0
 
typedef struct {
} fpu_context_t;
/trunk/kernel/arch/arm32/include/exception.h
1,5 → 1,6
/*
* Copyright (c) 2003-2004 Jakub Jermar
* Copyright (c) 2007 Michal Kebrt, Petr Stepan
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 31,7
* @{
*/
/** @file
* @brief Exception declarations.
*/
 
#ifndef KERN_arm32_EXCEPTION_H_
36,28 → 38,106
#define KERN_arm32_EXCEPTION_H_
 
#include <arch/types.h>
#include <arch/regutils.h>
 
/** If defined, forces using of high exception vectors. */
#define HIGH_EXCEPTION_VECTORS
 
#ifdef HIGH_EXCEPTION_VECTORS
#define EXC_BASE_ADDRESS 0xffff0000
#else
#define EXC_BASE_ADDRESS 0x0
#endif
 
/* Exception Vectors */
#define EXC_RESET_VEC (EXC_BASE_ADDRESS + 0x0)
#define EXC_UNDEF_INSTR_VEC (EXC_BASE_ADDRESS + 0x4)
#define EXC_SWI_VEC (EXC_BASE_ADDRESS + 0x8)
#define EXC_PREFETCH_ABORT_VEC (EXC_BASE_ADDRESS + 0xc)
#define EXC_DATA_ABORT_VEC (EXC_BASE_ADDRESS + 0x10)
#define EXC_IRQ_VEC (EXC_BASE_ADDRESS + 0x18)
#define EXC_FIQ_VEC (EXC_BASE_ADDRESS + 0x1c)
 
/* Exception numbers */
#define EXC_RESET 0
#define EXC_UNDEF_INSTR 1
#define EXC_SWI 2
#define EXC_PREFETCH_ABORT 3
#define EXC_DATA_ABORT 4
#define EXC_IRQ 5
#define EXC_FIQ 6
 
 
/** Kernel stack pointer.
*
* It is set when thread switches to user mode,
* and then used for exception handling.
*/
extern uintptr_t supervisor_sp;
 
 
/** Temporary exception stack pointer.
*
* Temporary stack is used in exceptions handling routines
* before switching to thread's kernel stack.
*/
extern uintptr_t exc_stack;
 
 
/** Struct representing CPU state saved when an exception occurs. */
typedef struct {
/* TODO */
uint32_t spsr;
uint32_t sp;
uint32_t lr;
 
uint32_t r0;
uint32_t r1;
uint32_t r2;
uint32_t r3;
uint32_t r4;
uint32_t r5;
uint32_t r6;
uint32_t r7;
uint32_t r8;
uint32_t r9;
uint32_t r10;
uint32_t r11;
uint32_t r12;
 
uint32_t pc;
} istate_t;
 
 
/** Sets Program Counter member of given istate structure.
*
* @param istate istate structure
* @param retaddr new value of istate's PC member
*/
static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
{
/* TODO */
istate->pc = retaddr;
}
 
/** Return true if exception happened while in userspace */
 
/** Returns true if exception happened while in userspace. */
static inline int istate_from_uspace(istate_t *istate)
{
/* TODO */
return 0;
return (istate->spsr & STATUS_REG_MODE_MASK) == USER_MODE;
}
 
 
/** Returns Program Counter member of given istate structure. */
static inline unative_t istate_get_pc(istate_t *istate)
{
/* TODO */
return 0;
return istate->pc;
}
 
 
extern void install_exception_handlers(void);
extern void exception_init(void);
extern void print_istate(istate_t *istate);
 
 
#endif
 
/** @}
/trunk/kernel/arch/arm32/include/regutils.h
0,0 → 1,86
/*
* Copyright (c) 2007 Petr Stepan
* 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 arm32
* @{
*/
/**
* @file
* @brief Utilities for convenient manipulation with ARM registers.
*/
 
#ifndef KERN_arm32_REGUTILS_H_
#define KERN_arm32_REGUTILS_H_
 
#define STATUS_REG_IRQ_DISABLED_BIT (1 << 7)
#define STATUS_REG_MODE_MASK 0x1f
 
#define CP15_R1_HIGH_VECTORS_BIT (1 << 13)
 
 
/* ARM Processor Operation Modes */
#define USER_MODE 0x10
#define FIQ_MODE 0x11
#define IRQ_MODE 0x12
#define SUPERVISOR_MODE 0x13
#define ABORT_MODE 0x17
#define UNDEFINED_MODE 0x1b
#define SYSTEM_MODE 0x1f
 
/* [CS]PRS manipulation macros */
#define GEN_STATUS_READ(nm,reg) \
static inline uint32_t nm## _status_reg_read(void) \
{ \
uint32_t retval; \
asm volatile("mrs %0, " #reg : "=r" (retval)); \
return retval; \
}
 
#define GEN_STATUS_WRITE(nm,reg,fieldname, field) \
static inline void nm## _status_reg_ ##fieldname## _write(uint32_t value) \
{ \
asm volatile("msr " #reg "_" #field ", %0" : : "r" (value)); \
}
 
 
/** Returns the value of CPSR (Current Program Status Register). */
GEN_STATUS_READ(current, cpsr)
 
 
/** Sets control bits of CPSR. */
GEN_STATUS_WRITE(current, cpsr, control, c);
 
 
/** Returns the value of SPSR (Saved Program Status Register). */
GEN_STATUS_READ(saved, spsr)
 
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/cycle.h
1,5 → 1,5
/*
* Copyright (c) 2006 Martin Decky
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,14 → 30,20
* @{
*/
/** @file
* @brief Count of CPU cycles.
*/
 
#ifndef KERN_arm32_CYCLE_H_
#define KERN_arm32_CYCLE_H_
 
/** Returns count of CPU cycles.
*
* No such instruction on ARM to get count of cycles.
*
* @return Count of CPU cycles.
*/
static inline uint64_t get_cycle(void)
{
/* TODO */
return 0;
}
 
/trunk/kernel/arch/arm32/include/byteorder.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Endianness definitions.
*/
 
#ifndef KERN_arm32_BYTEORDER_H_
/trunk/kernel/arch/arm32/include/debug/print.h
0,0 → 1,56
/*
* Copyright (c) 2007 Michal Kebrt
* 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 arm32
* @{
*/
/** @file
* @brief Debug printing functions.
*/
 
#ifndef KERN_arm32_DEBUG_PRINT_H_
#define KERN_arm32_DEBUG_PRINT_H_
 
#include <stdarg.h>
#include <arch/types.h>
 
extern void debug_puts(const char *str);
extern void debug_printf(const char *fmt, ...);
 
#ifdef CONFIG_DEBUG
# define dprintf(arg1...) debug_printf(arg1)
# define dputs(arg1) debug_puts(arg1)
#else
# define dprintf(arg1...)
# define dputs(arg1)
#endif
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/console.h
0,0 → 1,49
/*
* Copyright (c) 2007 Michal Kebrt
* 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 arm32
* @{
*/
/** @file
* @brief Console.
*/
 
#ifndef KERN_arm32_CONSOLE_H_
#define KERN_arm32_CONSOLE_H_
 
 
/** Initializes console.
*
* @param devno Console device number.
*/
extern void console_init(devno_t devno);
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/boot.h
0,0 → 1,76
/*
* Copyright (c) 2006 Martin Decky
* 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 arm32
* @{
*/
/** @file
* @brief Bootinfo declarations.
*
* Reflects boot/arch/arm32/loader/main.h.
*/
 
#ifndef KERN_arm32_BOOT_H_
#define KERN_arm32_BOOT_H_
 
#include <arch/types.h>
 
/** Maximum number of tasks in the #bootinfo_t struct. */
#define TASKMAP_MAX_RECORDS 32
 
 
/** Struct holding information about single loaded uspace task. */
typedef struct {
 
/** Address where the task was placed. */
uintptr_t addr;
 
/** Size of the task's binary. */
uint32_t size;
} utask_t;
 
 
/** Struct holding information about loaded uspace tasks. */
typedef struct {
 
/** Number of loaded tasks. */
uint32_t cnt;
 
/** Array of loaded tasks. */
utask_t tasks[TASKMAP_MAX_RECORDS];
} bootinfo_t;
 
 
/** Bootinfo that is filled in #kernel_image_start. */
extern bootinfo_t bootinfo;
 
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/types.h
1,5 → 1,5
/*
* Copyright (c) 2003-2007 Jakub Jermar
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,11 → 30,18
* @{
*/
/** @file
* @brief Type definitions.
*/
 
#ifndef KERN_arm32_TYPES_H_
#define KERN_arm32_TYPES_H_
 
#ifndef DOXYGEN
# define ATTRIBUTE_PACKED __attribute__ ((packed))
#else
# define ATTRIBUTE_PACKED
#endif
 
#define NULL 0
#define false 0
#define true 1
69,9 → 76,14
typedef int32_t inr_t;
typedef int32_t devno_t;
 
/** Page Table Entry. */
 
/** Page table entry.
*
* We have different structs for level 0 and level 1 page table entries.
* See page.h for definition of pte_level*_t.
*/
typedef struct {
/* placeholder */
unsigned dummy : 32;
} pte_t;
 
#endif
/trunk/kernel/arch/arm32/include/machine.h
0,0 → 1,122
/*
* Copyright (c) 2007 Michal Kebrt
* 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 arm32
* @{
*/
/** @file
* @brief Declarations of machine specific functions.
*
* These functions enable to differentiate more kinds of ARM emulators
* or CPUs. It's the same concept as "arch" functions on the architecture
* level.
*/
 
#ifndef KERN_arm32_MACHINE_H_
#define KERN_arm32_MACHINE_H_
 
#include <console/console.h>
#include <arch/types.h>
#include <arch/exception.h>
#include <arch/drivers/gxemul.h>
 
 
/** Initializes console.
*
* @param devno Console device number.
*/
extern void machine_console_init(devno_t devno);
 
 
/** Acquire console back for kernel. */
extern void machine_grab_console(void);
 
 
/** Return console to userspace. */
extern void machine_release_console(void);
 
 
/** Maps HW devices to the kernel address space using #hw_map. */
extern void machine_hw_map_init(void);
 
 
/** Starts timer. */
extern void machine_timer_irq_start(void);
 
 
/** Halts CPU. */
extern void machine_cpu_halt(void);
 
 
/** Returns size of available memory.
*
* @return Size of available memory.
*/
extern size_t machine_get_memory_size(void);
 
 
/** Prints a character.
*
* @param ch Character to be printed.
*/
extern void machine_debug_putc(char ch);
 
 
/** Interrupt exception handler.
*
* @param exc_no Interrupt exception number.
* @param istate Saved processor state.
*/
extern void machine_irq_exception(int exc_no, istate_t *istate);
 
 
/** Returns address of framebuffer device.
*
* @return Address of framebuffer device.
*/
extern uintptr_t machine_get_fb_address(void);
 
 
#ifdef MACHINE_GXEMUL_TESTARM
#define machine_console_init(devno) gxemul_console_init(devno)
#define machine_grab_console gxemul_grab_console
#define machine_release_console gxemul_release_console
#define machine_hw_map_init gxemul_hw_map_init
#define machine_timer_irq_start gxemul_timer_irq_start
#define machine_cpu_halt gxemul_cpu_halt
#define machine_get_memory_size gxemul_get_memory_size
#define machine_debug_putc(ch) gxemul_debug_putc(ch)
#define machine_irq_exception(exc_no, istate) \
gxemul_irq_exception(exc_no, istate)
#define machine_get_fb_address gxemul_get_fb_address
#endif
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/stack.h
0,0 → 1,49
/*
* Copyright (c) 2007 Michal Kebrt
* 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 arm32
* @{
*/
/** @file
* @brief Stack constants.
*/
 
#ifndef KERN_arm32_STACK_H_
#define KERN_arm32_STACK_H_
 
#define STACK_ITEM_SIZE 4
 
/** See <a href="http://www.arm.com/support/faqdev/14269.html">ABI</a> for
* details
*/
#define STACK_ALIGNMENT 8
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/elf.h
30,6 → 30,7
* @{
*/
/** @file
* @brief ARM ELF constants.
*/
 
#ifndef KERN_arm32_ELF_H_
/trunk/kernel/arch/arm32/include/memstr.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Memory manipulating functions declarations.
*/
 
#ifndef KERN_arm32_MEMSTR_H_
/trunk/kernel/arch/arm32/include/arg.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Empty.
*/
 
#ifndef KERN_arm32_ARG_H_
/trunk/kernel/arch/arm32/include/atomic.h
1,5 → 1,5
/*
* Copyright (c) 2005 Ondrej Palkovsky
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
29,34 → 29,99
/** @addtogroup arm32
* @{
*/
/** @file
/** @file
* @brief Atomic operations.
*/
 
#ifndef KERN_arm32_ATOMIC_H_
#define KERN_arm32_ATOMIC_H_
 
#define atomic_inc(x) ((void) atomic_add(x, 1))
#define atomic_dec(x) ((void) atomic_add(x, -1))
/** Atomic addition.
*
* @param val Where to add.
* @param i Value to be added.
*
* @return Value after addition.
*/
static inline long atomic_add(atomic_t *val, int i)
{
int ret;
volatile long *mem = &(val->count);
 
#define atomic_postinc(x) (atomic_add(x, 1) - 1)
#define atomic_postdec(x) (atomic_add(x, -1) + 1)
asm volatile (
"1:\n"
"ldr r2, [%1] \n"
"add r3, r2, %2 \n"
"str r3, %0 \n"
"swp r3, r3, [%1] \n"
"cmp r3, r2 \n"
"bne 1b \n"
 
#define atomic_preinc(x) atomic_add(x, 1)
#define atomic_predec(x) atomic_add(x, -1)
: "=m" (ret)
: "r" (mem), "r" (i)
: "r3", "r2"
);
 
/* Atomic addition of immediate value.
return ret;
}
 
/** Atomic increment.
*
* @param val Memory location to which will be the immediate value added.
* @param i Signed immediate that will be added to *val.
* @param val Variable to be incremented.
*/
static inline void atomic_inc(atomic_t *val)
{
atomic_add(val, 1);
}
 
/** Atomic decrement.
*
* @return Value after addition.
* @param val Variable to be decremented.
*/
static inline long atomic_add(atomic_t *val, int i)
static inline void atomic_dec(atomic_t *val) {
atomic_add(val, -1);
}
 
/** Atomic pre-increment.
*
* @param val Variable to be incremented.
* @return Value after incrementation.
*/
static inline long atomic_preinc(atomic_t *val)
{
/* TODO */
return (val->count += i);
return atomic_add(val, 1);
}
 
/** Atomic pre-decrement.
*
* @param val Variable to be decremented.
* @return Value after decrementation.
*/
static inline long atomic_predec(atomic_t *val)
{
return atomic_add(val, -1);
}
 
/** Atomic post-increment.
*
* @param val Variable to be incremented.
* @return Value before incrementation.
*/
static inline long atomic_postinc(atomic_t *val)
{
return atomic_add(val, 1) - 1;
}
 
/** Atomic post-decrement.
*
* @param val Variable to be decremented.
* @return Value before decrementation.
*/
static inline long atomic_postdec(atomic_t *val)
{
return atomic_add(val, -1) + 1;
}
 
#endif
 
/** @}
/trunk/kernel/arch/arm32/include/arch.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Empty.
*/
 
#ifndef KERN_arm32_ARCH_H_
/trunk/kernel/arch/arm32/include/proc/task.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Task related declarations.
*/
 
#ifndef KERN_arm32_TASK_H_
/trunk/kernel/arch/arm32/include/proc/thread.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Thread related declarations.
*/
 
#ifndef KERN_arm32_THREAD_H_
46,4 → 47,3
 
/** @}
*/
 
/trunk/kernel/arch/arm32/include/faddr.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Function address conversion.
*/
 
#ifndef KERN_arm32_FADDR_H_
37,6 → 38,10
 
#include <arch/types.h>
 
/** Calculate absolute address of function referenced by fptr pointer.
*
* @param fptr Function pointer.
*/
#define FADDR(fptr) ((uintptr_t) (fptr))
 
#endif
/trunk/kernel/arch/arm32/include/asm.h
1,5 → 1,5
/*
* Copyright (c) 2003-2004 Jakub Jermar
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
29,7 → 29,8
/** @addtogroup arm32
* @{
*/
/** @file
/** @file
* @brief Declarations of functions implemented in assembly.
*/
 
#ifndef KERN_arm32_ASM_H_
36,13 → 37,16
#define KERN_arm32_ASM_H_
 
#include <arch/types.h>
#include <arch/stack.h>
#include <config.h>
#include <arch/interrupt.h>
 
/** No such instruction on ARM to sleep CPU. */
static inline void cpu_sleep(void)
{
/* TODO */
}
 
/** Return base address of current stack
/** Return base address of current stack.
*
* Return the base address of the current stack.
* The stack is assumed to be STACK_SIZE bytes long.
50,8 → 54,13
*/
static inline uintptr_t get_stack_base(void)
{
/* TODO */
return NULL;
uintptr_t v;
asm volatile (
"and %0, sp, %1\n"
: "=r" (v)
: "r" (~(STACK_SIZE - 1))
);
return v;
}
 
extern void cpu_halt(void);
59,11 → 68,6
extern void userspace_asm(uintptr_t ustack, uintptr_t uspace_uarg,
uintptr_t entry);
 
extern ipl_t interrupts_disable(void);
extern ipl_t interrupts_enable(void);
extern void interrupts_restore(ipl_t ipl);
extern ipl_t interrupts_read(void);
 
#endif
 
/** @}
/trunk/kernel/arch/arm32/include/mainpage.h
0,0 → 1,49
/*
* Copyright (c) 2005 Michal Kebrt
* 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.
*/
 
/** @mainpage HelenOS ARM 32-bit port
*
*
* @section sec_arm32 ARM 32-bit port
* arm32 port is the ninth port of SPARTAN, originally written by Michal Kebrt,
* Petr Stepan, Pavel Jancik. The goal is to support 32-bit ARM architecture.
* So far, it runs only in emulator.
*
* @subsection sec_arm32_doc Documentation
* <ul>
* <li>See 'kernel/doc/arm32_HOWTO' for information about getting an emulator,
* building sources and running HelenOS.
* </li>
* <li>See <a href="http://www.helenos.eu/doc/slides/2007-05-21-Stepan-ARM.pdf">slides</a>
* for some information about ARM architecture and porting HelenOS to ARM
* (only in Czech).
* </li>
* </ul>
*
*
*/
/trunk/kernel/arch/arm32/include/mm/frame.h
1,5 → 1,5
/*
* Copyright (c) 2005 Jakub Jermar
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,18 → 30,30
* @{
*/
/** @file
* @brief Frame related declarations.
*/
 
#ifndef KERN_arm32_FRAME_H_
#define KERN_arm32_FRAME_H_
 
#define FRAME_WIDTH 0 /* TODO */
#define FRAME_WIDTH 12 /* 4KB frames */
#define FRAME_SIZE (1 << FRAME_WIDTH)
 
#ifdef KERNEL
#ifndef __ASM__
 
#include <arch/types.h>
 
#define BOOT_PAGE_TABLE_SIZE 0x4000
#define BOOT_PAGE_TABLE_ADDRESS 0x4000
 
#define BOOT_PAGE_TABLE_START_FRAME (BOOT_PAGE_TABLE_ADDRESS >> FRAME_WIDTH)
#define BOOT_PAGE_TABLE_SIZE_IN_FRAMES (BOOT_PAGE_TABLE_SIZE >> FRAME_WIDTH)
 
extern uintptr_t last_frame;
 
extern void frame_arch_init(void);
extern void boot_page_table_free(void);
 
#endif /* __ASM__ */
#endif /* KERNEL */
/trunk/kernel/arch/arm32/include/mm/memory_init.h
1,5 → 1,5
/*
* Copyright (c) 2005 Jakub Jermar
* Copyright (c) 2007 Pavel Jancik
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,7
* @{
*/
/** @file
* @brief Memory information functions declarations.
*/
 
#ifndef KERN_arm32_MEMORY_INIT_H_
37,7 → 38,7
 
#include <config.h>
 
#define get_memory_size() CONFIG_MEMORY_SIZE /* TODO */
size_t get_memory_size(void);
 
#endif
 
/trunk/kernel/arch/arm32/include/mm/page.h
1,5 → 1,5
/*
* Copyright (c) 2003-2007 Jakub Jermar
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,7
* @{
*/
/** @file
* @brief Paging related declarations.
*/
 
#ifndef KERN_arm32_PAGE_H_
36,6 → 37,8
#define KERN_arm32_PAGE_H_
 
#include <arch/mm/frame.h>
#include <mm/mm.h>
#include <arch/exception.h>
 
#define PAGE_WIDTH FRAME_WIDTH
#define PAGE_SIZE FRAME_SIZE
52,62 → 55,261
 
#ifdef KERNEL
 
#define PTL0_ENTRIES_ARCH 0 /* TODO */
#define PTL1_ENTRIES_ARCH 0 /* TODO */
#define PTL2_ENTRIES_ARCH 0 /* TODO */
#define PTL3_ENTRIES_ARCH 0 /* TODO */
#define PTL0_ENTRIES_ARCH (2 << 12) /* 4096 */
#define PTL1_ENTRIES_ARCH 0
#define PTL2_ENTRIES_ARCH 0
 
#define PTL0_INDEX_ARCH(vaddr) 0 /* TODO */
#define PTL1_INDEX_ARCH(vaddr) 0 /* TODO */
#define PTL2_INDEX_ARCH(vaddr) 0 /* TODO */
#define PTL3_INDEX_ARCH(vaddr) 0 /* TODO */
/* coarse page tables used (256 * 4 = 1KB per page) */
#define PTL3_ENTRIES_ARCH (2 << 8) /* 256 */
 
#define SET_PTL0_ADDRESS_ARCH(ptl0)
#define PTL0_SIZE_ARCH FOUR_FRAMES
#define PTL1_SIZE_ARCH 0
#define PTL2_SIZE_ARCH 0
#define PTL3_SIZE_ARCH ONE_FRAME
 
#define GET_PTL1_ADDRESS_ARCH(ptl0, i) 0 /* TODO */
#define GET_PTL2_ADDRESS_ARCH(ptl1, i) 0 /* TODO */
#define GET_PTL3_ADDRESS_ARCH(ptl2, i) 0 /* TODO */
#define GET_FRAME_ADDRESS_ARCH(ptl3, i) 0 /* TODO */
#define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 20) & 0xfff)
#define PTL1_INDEX_ARCH(vaddr) 0
#define PTL2_INDEX_ARCH(vaddr) 0
#define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x0ff)
 
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) /* TODO */
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) /* TODO */
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) /* TODO */
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) /* TODO */
#define GET_PTL1_ADDRESS_ARCH(ptl0, i) \
((pte_t *) ((((pte_level0_t *)(ptl0))[(i)]).coarse_table_addr << 10))
#define GET_PTL2_ADDRESS_ARCH(ptl1, i) \
(ptl1)
#define GET_PTL3_ADDRESS_ARCH(ptl2, i) \
(ptl2)
#define GET_FRAME_ADDRESS_ARCH(ptl3, i) \
((uintptr_t) ((((pte_level1_t *)(ptl3))[(i)]).frame_base_addr << 12))
 
#define GET_PTL1_FLAGS_ARCH(ptl0, i) 0 /* TODO */
#define GET_PTL2_FLAGS_ARCH(ptl1, i) 0 /* TODO */
#define GET_PTL3_FLAGS_ARCH(ptl2, i) 0 /* TODO */
#define GET_FRAME_FLAGS_ARCH(ptl3, i) 0 /* TODO */
#define SET_PTL0_ADDRESS_ARCH(ptl0) \
(set_ptl0_addr((pte_level0_t *) (ptl0)))
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) \
(((pte_level0_t *) (ptl0))[(i)].coarse_table_addr = (a) >> 10)
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) \
(((pte_level1_t *) (ptl3))[(i)].frame_base_addr = (a) >> 12)
 
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) /* TODO */
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x) /* TODO */
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x) /* TODO */
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) /* TODO */
#define GET_PTL1_FLAGS_ARCH(ptl0, i) \
get_pt_level0_flags((pte_level0_t *) (ptl0), (index_t) (i))
#define GET_PTL2_FLAGS_ARCH(ptl1, i) \
PAGE_PRESENT
#define GET_PTL3_FLAGS_ARCH(ptl2, i) \
PAGE_PRESENT
#define GET_FRAME_FLAGS_ARCH(ptl3, i) \
get_pt_level1_flags((pte_level1_t *) (ptl3), (index_t) (i))
 
#define PTE_VALID_ARCH(pte) 0 /* TODO */
#define PTE_PRESENT_ARCH(pte) 0 /* TODO */
#define PTE_GET_FRAME_ARCH(pte) 0 /* TODO */
#define PTE_WRITABLE_ARCH(pte) 0 /* TODO */
#define PTE_EXECUTABLE_ARCH(pte) 0 /* TODO */
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) \
set_pt_level0_flags((pte_level0_t *) (ptl0), (index_t) (i), (x))
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) \
set_pt_level1_flags((pte_level1_t *) (ptl3), (index_t) (i), (x))
 
#define PTE_VALID_ARCH(pte) \
(*((uint32_t *) (pte)) != 0)
#define PTE_PRESENT_ARCH(pte) \
(((pte_level0_t *) (pte))->descriptor_type != 0)
 
/* pte should point into ptl3 */
#define PTE_GET_FRAME_ARCH(pte) \
(((pte_level1_t *) (pte))->frame_base_addr << FRAME_WIDTH)
 
/* pte should point into ptl3 */
#define PTE_WRITABLE_ARCH(pte) \
(((pte_level1_t *) (pte))->access_permission_0 == \
PTE_AP_USER_RW_KERNEL_RW)
 
#define PTE_EXECUTABLE_ARCH(pte) \
1
 
#ifndef __ASM__
 
#include <mm/mm.h>
#include <arch/exception.h>
/** Level 0 page table entry. */
typedef struct {
/* 0b01 for coarse tables, see below for details */
unsigned descriptor_type : 2;
unsigned impl_specific : 3;
unsigned domain : 4;
unsigned should_be_zero : 1;
 
static inline int get_pt_flags(pte_t *pt, index_t i)
/* Pointer to the coarse 2nd level page table (holding entries for small
* (4KB) or large (64KB) pages. ARM also supports fine 2nd level page
* tables that may hold even tiny pages (1KB) but they are bigger (4KB
* per table in comparison with 1KB per the coarse table)
*/
unsigned coarse_table_addr : 22;
} ATTRIBUTE_PACKED pte_level0_t;
 
/** Level 1 page table entry (small (4KB) pages used). */
typedef struct {
 
/* 0b10 for small pages */
unsigned descriptor_type : 2;
unsigned bufferable : 1;
unsigned cacheable : 1;
 
/* access permissions for each of 4 subparts of a page
* (for each 1KB when small pages used */
unsigned access_permission_0 : 2;
unsigned access_permission_1 : 2;
unsigned access_permission_2 : 2;
unsigned access_permission_3 : 2;
unsigned frame_base_addr : 20;
} ATTRIBUTE_PACKED pte_level1_t;
 
 
/* Level 1 page tables access permissions */
 
/** User mode: no access, privileged mode: no access. */
#define PTE_AP_USER_NO_KERNEL_NO 0
 
/** User mode: no access, privileged mode: read/write. */
#define PTE_AP_USER_NO_KERNEL_RW 1
 
/** User mode: read only, privileged mode: read/write. */
#define PTE_AP_USER_RO_KERNEL_RW 2
 
/** User mode: read/write, privileged mode: read/write. */
#define PTE_AP_USER_RW_KERNEL_RW 3
 
 
/* pte_level0_t and pte_level1_t descriptor_type flags */
 
/** pte_level0_t and pte_level1_t "not present" flag (used in descriptor_type). */
#define PTE_DESCRIPTOR_NOT_PRESENT 0
 
/** pte_level0_t coarse page table flag (used in descriptor_type). */
#define PTE_DESCRIPTOR_COARSE_TABLE 1
 
/** pte_level1_t small page table flag (used in descriptor type). */
#define PTE_DESCRIPTOR_SMALL_PAGE 2
 
 
/** Sets the address of level 0 page table.
*
* @param pt Pointer to the page table to set.
*/
static inline void set_ptl0_addr( pte_level0_t *pt)
{
return 0; /* TODO */
asm volatile (
"mcr p15, 0, %0, c2, c0, 0 \n"
:
: "r"(pt)
);
}
 
static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
 
/** Returns level 0 page table entry flags.
*
* @param pt Level 0 page table.
* @param i Index of the entry to return.
*/
static inline int get_pt_level0_flags(pte_level0_t *pt, index_t i)
{
/* TODO */
return;
pte_level0_t *p = &pt[i];
int np = (p->descriptor_type == PTE_DESCRIPTOR_NOT_PRESENT);
 
return (np << PAGE_PRESENT_SHIFT) | (1 << PAGE_USER_SHIFT) |
(1 << PAGE_READ_SHIFT) | (1 << PAGE_WRITE_SHIFT) |
(1 << PAGE_EXEC_SHIFT) | (1 << PAGE_CACHEABLE_SHIFT);
}
 
/** Returns level 1 page table entry flags.
*
* @param pt Level 1 page table.
* @param i Index of the entry to return.
*/
static inline int get_pt_level1_flags(pte_level1_t *pt, index_t i)
{
pte_level1_t *p = &pt[i];
 
int dt = p->descriptor_type;
int ap = p->access_permission_0;
 
return ((dt == PTE_DESCRIPTOR_NOT_PRESENT) << PAGE_PRESENT_SHIFT) |
((ap == PTE_AP_USER_RO_KERNEL_RW) << PAGE_READ_SHIFT) |
((ap == PTE_AP_USER_RW_KERNEL_RW) << PAGE_READ_SHIFT) |
((ap == PTE_AP_USER_RW_KERNEL_RW) << PAGE_WRITE_SHIFT) |
((ap != PTE_AP_USER_NO_KERNEL_RW) << PAGE_USER_SHIFT) |
((ap == PTE_AP_USER_NO_KERNEL_RW) << PAGE_READ_SHIFT) |
((ap == PTE_AP_USER_NO_KERNEL_RW) << PAGE_WRITE_SHIFT) |
(1 << PAGE_EXEC_SHIFT) |
(p->bufferable << PAGE_CACHEABLE);
}
 
 
/** Sets flags of level 0 page table entry.
*
* @param pt level 0 page table
* @param i index of the entry to be changed
* @param flags new flags
*/
static inline void set_pt_level0_flags(pte_level0_t *pt, index_t i, int flags)
{
pte_level0_t *p = &pt[i];
 
if (flags & PAGE_NOT_PRESENT) {
p->descriptor_type = PTE_DESCRIPTOR_NOT_PRESENT;
/*
* Ensures that the entry will be recognized as valid when
* PTE_VALID_ARCH applied.
*/
p->should_be_zero = 1;
} else {
p->descriptor_type = PTE_DESCRIPTOR_COARSE_TABLE;
p->should_be_zero = 0;
}
}
 
 
/** Sets flags of level 1 page table entry.
*
* We use same access rights for the whole page. When page is not preset we
* store 1 in acess_rigts_3 so that at least one bit is 1 (to mark correct
* page entry, see #PAGE_VALID_ARCH).
*
* @param pt Level 1 page table.
* @param i Index of the entry to be changed.
* @param flags New flags.
*/
static inline void set_pt_level1_flags(pte_level1_t *pt, index_t i, int flags)
{
pte_level1_t *p = &pt[i];
if (flags & PAGE_NOT_PRESENT) {
p->descriptor_type = PTE_DESCRIPTOR_NOT_PRESENT;
p->access_permission_3 = 1;
} else {
p->descriptor_type = PTE_DESCRIPTOR_SMALL_PAGE;
p->access_permission_3 = p->access_permission_0;
}
p->cacheable = p->bufferable = (flags & PAGE_CACHEABLE) != 0;
 
/* default access permission */
p->access_permission_0 = p->access_permission_1 =
p->access_permission_2 = p->access_permission_3 =
PTE_AP_USER_NO_KERNEL_RW;
 
if (flags & PAGE_USER) {
if (flags & PAGE_READ) {
p->access_permission_0 = p->access_permission_1 =
p->access_permission_2 = p->access_permission_3 =
PTE_AP_USER_RO_KERNEL_RW;
}
if (flags & PAGE_WRITE) {
p->access_permission_0 = p->access_permission_1 =
p->access_permission_2 = p->access_permission_3 =
PTE_AP_USER_RW_KERNEL_RW;
}
}
}
 
 
extern void page_arch_init(void);
 
 
#endif /* __ASM__ */
 
#endif /* KERNEL */
/trunk/kernel/arch/arm32/include/mm/asid.h
1,5 → 1,5
/*
* Copyright (c) 2005 Martin Decky
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,9
* @{
*/
/** @file
* @brief ASIDs related declarations.
*
* ARM CPUs doesn't support ASIDs.
*/
 
#ifndef KERN_arm32_ASID_H_
37,10 → 40,18
 
#include <arch/types.h>
 
#define ASID_MAX_ARCH 3 /* TODO */
#define ASID_MAX_ARCH 3 /* minimal required number */
 
typedef uint8_t asid_t;
 
/*
* This works due to fact that this file is never included alone but only
* through "generic/include/mm/asid.h" where ASID_START is defined.
*/
#define asid_get() (ASID_START + 1)
 
#define asid_put(asid)
 
#endif
 
/** @}
/trunk/kernel/arch/arm32/include/mm/tlb.h
1,5 → 1,5
/*
* Copyright (c) 2005 Jakub Jermar
* Copyright (c) 2007 Pavel Jancik
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,7
* @{
*/
/** @file
* @brief TLB related declarations.
*/
 
#ifndef KERN_arm32_TLB_H_
/trunk/kernel/arch/arm32/include/mm/as.h
1,5 → 1,5
/*
* Copyright (c) 2005 Jakub Jermar
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,7
* @{
*/
/** @file
* @brief Address space manipulating functions declarations.
*/
 
#ifndef KERN_arm32_AS_H_
37,10 → 38,10
 
#define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH 0
 
#define KERNEL_ADDRESS_SPACE_START_ARCH (unsigned long) 0x80000000
#define KERNEL_ADDRESS_SPACE_END_ARCH (unsigned long) 0xffffffff
#define USER_ADDRESS_SPACE_START_ARCH (unsigned long) 0x00000000
#define USER_ADDRESS_SPACE_END_ARCH (unsigned long) 0x7fffffff
#define KERNEL_ADDRESS_SPACE_START_ARCH (unsigned long) 0x80000000
#define KERNEL_ADDRESS_SPACE_END_ARCH (unsigned long) 0xffffffff
#define USER_ADDRESS_SPACE_START_ARCH (unsigned long) 0x00000000
#define USER_ADDRESS_SPACE_END_ARCH (unsigned long) 0x7fffffff
 
#define USTACK_ADDRESS_ARCH (0x80000000 - PAGE_SIZE)
 
52,6 → 53,7
#define as_constructor_arch(as, flags) (as != as)
#define as_destructor_arch(as) (as != as)
#define as_create_arch(as, flags) (as != as)
#define as_install_arch(as)
#define as_deinstall_arch(as)
#define as_invalidate_translation_cache(as, page, cnt)
 
/trunk/kernel/arch/arm32/include/mm/page_fault.h
0,0 → 1,89
/*
* Copyright (c) 2007 Pavel Jancik, Michal Kebrt
* 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 arm32mm
* @{
*/
/** @file
* @brief Page fault related declarations.
*/
 
#ifndef KERN_arm32_PAGE_FAULT_H_
#define KERN_arm32_PAGE_FAULT_H_
 
#include <arch/types.h>
 
 
/** Decribes CP15 "fault status register" (FSR). */
typedef struct {
unsigned status : 3;
unsigned domain : 4;
unsigned zero : 1;
unsigned should_be_zero : 24;
} ATTRIBUTE_PACKED fault_status_t;
 
 
/** Help union used for casting integer value into #fault_status_t. */
typedef union {
fault_status_t fs;
uint32_t dummy;
} fault_status_union_t;
 
 
/** Simplified description of instruction code.
*
* @note Used for recognizing memory access instructions.
* @see ARM architecture reference (chapter 3.1)
*/
typedef struct {
unsigned dummy1 : 4;
unsigned bit4 : 1;
unsigned bits567 : 3;
unsigned dummy : 12;
unsigned access : 1;
unsigned opcode : 4;
unsigned type : 3;
unsigned condition : 4;
} ATTRIBUTE_PACKED instruction_t;
 
 
/** Help union used for casting pc register (uint_32_t) value into
* #instruction_t pointer.
*/
typedef union {
instruction_t *instr;
uint32_t pc;
} instruction_union_t;
 
extern void prefetch_abort(int n, istate_t *istate);
extern void data_abort(int n, istate_t *istate);
 
#endif
 
/** @}
*/
/trunk/kernel/arch/arm32/include/context.h
1,5 → 1,5
/*
* Copyright (c) 2003-2004 Jakub Jermar
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,30 → 30,43
* @{
*/
/** @file
* @brief Thread context.
*/
 
#ifndef KERN_arm32_CONTEXT_H_
#define KERN_arm32_CONTEXT_H_
 
/*
* Put one item onto the stack to support get_stack_base() and align it up.
*/
#define SP_DELTA 0 /* TODO */
#include <align.h>
#include <arch/stack.h>
 
/* Put one item onto the stack to support get_stack_base() and align it up. */
#define SP_DELTA (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
 
#ifndef __ASM__
 
#include <arch/types.h>
 
/*
* Only save registers that must be preserved across function calls.
/** Thread context containing registers that must be preserved across function
* calls.
*/
typedef struct {
uint32_t cpu_mode;
uintptr_t sp;
uintptr_t pc;
uint32_t r4;
uint32_t r5;
uint32_t r6;
uint32_t r7;
uint32_t r8;
uint32_t r9;
uint32_t r10;
uint32_t r11;
ipl_t ipl;
} context_t;
 
 
#endif /* __ASM__ */
 
#endif
/trunk/kernel/arch/arm32/include/barrier.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Memory barriers.
*/
 
#ifndef KERN_arm32_BARRIER_H_
/trunk/kernel/arch/arm32/include/debug.h
30,6 → 30,7
* @{
*/
/** @file
* @brief Empty.
*/
 
#ifndef KERN_arm32_DEBUG_H_
/trunk/kernel/arch/arm32/include/cpu.h
1,5 → 1,5
/*
* Copyright (c) 2003-2004 Jakub Jermar
* Copyright (c) 2007 Michal Kebrt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
30,6 → 30,7
* @{
*/
/** @file
* @brief CPU identification.
*/
 
#ifndef KERN_arm32_CPU_H_
38,9 → 39,25
#include <arch/types.h>
#include <arch/asm.h>
 
 
/** Struct representing ARM CPU identifiaction. */
typedef struct {
/** Implementator (vendor) number. */
uint32_t imp_num;
 
/** Variant number. */
uint32_t variant_num;
 
/** Architecture number. */
uint32_t arch_num;
 
/** Primary part number. */
uint32_t prim_part_num;
 
/** Revision number. */
uint32_t rev_num;
} cpu_arch_t;
 
#endif
 
/** @}
/trunk/kernel/arch/arm32/include/drivers/gxemul.h
0,0 → 1,79
/*
* Copyright (c) 2007 Michal Kebrt
* 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 arm32gxemul GXemul
* @brief GXemul machine specific parts.
* @ingroup arm32
* @{
*/
/** @file
* @brief GXemul peripheries drivers declarations.
*/
 
#ifndef KERN_arm32_GXEMUL_H_
#define KERN_arm32_GXEMUL_H_
 
#include <console/chardev.h>
 
/** Last interrupt number (beginning from 0) whose status is probed
* from interrupt controller
*/
#define GXEMUL_IRQC_MAX_IRQ 8
 
/** Timer frequency */
#define GXEMUL_TIMER_FREQ 100
 
/** Struct containing mappings of gxemul HW devices into kernel part
* of virtual address space.
*/
typedef struct {
uintptr_t videoram;
uintptr_t kbd;
uintptr_t rtc;
uintptr_t rtc_freq;
uintptr_t rtc_ack;
uintptr_t irqc;
uintptr_t irqc_mask;
uintptr_t irqc_unmask;
} gxemul_hw_map_t;
 
extern void gxemul_hw_map_init(void);
extern void gxemul_console_init(devno_t devno);
extern void gxemul_release_console(void);
extern void gxemul_grab_console(void);
extern void gxemul_timer_irq_start(void);
extern void gxemul_debug_putc(char ch);
extern void gxemul_cpu_halt(void);
extern void gxemul_irq_exception(int exc_no, istate_t *istate);
extern size_t gxemul_get_memory_size(void);
extern uintptr_t gxemul_get_fb_address(void);
 
#endif
 
/** @}
*/