Changeset 96e0748d in mainline for kernel/arch


Ignore:
Timestamp:
2009-02-17T22:47:27Z (17 years ago)
Author:
Martin Decky <martin@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
f89979b
Parents:
e662a5f
Message:

make arch_pre_main optional, don't force any specific prototype
simplify boot process
mips32: detect number of configured CPUs in msim

Location:
kernel/arch
Files:
2 deleted
15 edited

Legend:

Unmodified
Added
Removed
  • kernel/arch/arm32/include/arch.h

    re662a5f r96e0748d  
    2727 */
    2828
    29 /** @addtogroup arm32   
     29/** @addtogroup arm32
    3030 * @{
    3131 */
     
    3737#define KERN_arm32_ARCH_H_
    3838
     39#define TASKMAP_MAX_RECORDS  32
     40#define CPUMAP_MAX_RECORDS   32
     41
     42#include <typedefs.h>
     43
     44typedef struct {
     45        uintptr_t addr;
     46        uint32_t size;
     47} utask_t;
     48
     49typedef struct {
     50        uint32_t cnt;
     51        utask_t tasks[TASKMAP_MAX_RECORDS];
     52} bootinfo_t;
     53
     54extern void arch_pre_main(void *entry, bootinfo_t *bootinfo);
     55
    3956#endif
    4057
  • kernel/arch/arm32/include/asm/boot.h

    re662a5f r96e0748d  
    2727 */
    2828
    29 /** @addtogroup arm32   
     29/** @addtogroup arm32
    3030 * @{
    3131 */
     
    4040#define TEMP_STACK_SIZE 0x100
    4141
    42 #ifndef __ASM__
    43 
    44 /** Kernel entry point.
    45  *
    46  * Implemented in assembly. Copies boot_bootinfo (declared as bootinfo in
    47  * boot/arch/arm32/loader/main.c) to #bootinfo struct. Then jumps to
    48  * #arch_pre_main and #main_bsp.
    49  *
    50  * @param entry          Entry point address (not used).
    51  * @param boot_bootinfo  Struct holding information about loaded tasks.
    52  * @param bootinfo_size  Size of the bootinfo structure.
    53  */
    54 extern void kernel_image_start(void *entry, void *boot_bootinfo,
    55     unsigned int bootinfo_size);
    56 
    57 #endif
    58 
    5942#endif
    6043
  • kernel/arch/arm32/src/arm32.c

    re662a5f r96e0748d  
    3535
    3636#include <arch.h>
    37 #include <arch/boot.h>
    3837#include <config.h>
    3938#include <arch/console.h>
     
    4948#include <arch/machine.h>
    5049#include <userspace.h>
    51 
    52 /** Information about loaded tasks. */
    53 bootinfo_t bootinfo;
     50#include <macros.h>
    5451
    5552/** Performs arm32 specific initialization before main_bsp() is called. */
    56 void arch_pre_main(void)
     53void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
    5754{
    5855        unsigned int i;
    59 
    60         init.cnt = bootinfo.cnt;
    61 
    62         for (i = 0; i < bootinfo.cnt; ++i) {
    63                 init.tasks[i].addr = bootinfo.tasks[i].addr;
    64                 init.tasks[i].size = bootinfo.tasks[i].size;
     56       
     57        init.cnt = bootinfo->cnt;
     58       
     59        for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
     60                init.tasks[i].addr = bootinfo->tasks[i].addr;
     61                init.tasks[i].size = bootinfo->tasks[i].size;
    6562        }
    66        
    6763}
    6864
  • kernel/arch/arm32/src/start.S

    re662a5f r96e0748d  
    4141        bic r3, r3, #0x1f
    4242        orr r3, r3, #0x13
    43         msr cpsr_c, r3 
     43        msr cpsr_c, r3
    4444       
    4545        ldr sp, =temp_stack
    46 
    47         cmp r2, #0
    48         beq bootinfo_end
    49 
    50         ldr r3, =bootinfo
    51 
    52         bootinfo_loop:
    53                 ldr r4, [r1]
    54                 str r4, [r3]
    55 
    56                 add r1, r1, #4
    57                 add r3, r3, #4
    58                 add r2, r2, #-4
    59 
    60                 cmp r2, #0
    61                 bne bootinfo_loop
    6246       
    63         bootinfo_end:
    64 
    6547        bl arch_pre_main
    66 
     48       
    6749        bl main_bsp
    6850
     
    7557supervisor_sp:
    7658        .space 4
    77 
  • kernel/arch/ia64/include/arch.h

    re662a5f r96e0748d  
    4040#include <arch/ski/ski.h>
    4141
     42extern void arch_pre_main(void);
     43
    4244#endif
    4345
  • kernel/arch/mips32/include/arch.h

    re662a5f r96e0748d  
    2727 */
    2828
    29 /** @addtogroup mips32 
     29/** @addtogroup mips32
    3030 * @{
    3131 */
     
    3636#define KERN_mips32_ARCH_H_
    3737
     38#define TASKMAP_MAX_RECORDS  32
     39#define CPUMAP_MAX_RECORDS   32
     40
     41#include <typedefs.h>
     42
     43extern count_t cpu_count;
     44
     45typedef struct {
     46        uintptr_t addr;
     47        uint32_t size;
     48} utask_t;
     49
     50typedef struct {
     51        uint32_t cpumap;
     52        uint32_t cnt;
     53        utask_t tasks[TASKMAP_MAX_RECORDS];
     54} bootinfo_t;
     55
     56extern void arch_pre_main(void *entry, bootinfo_t *bootinfo);
     57
    3858#endif
    3959
  • kernel/arch/mips32/include/asm/boot.h

    re662a5f r96e0748d  
    2727 */
    2828
    29 /** @addtogroup mips32 
     29/** @addtogroup mips32
    3030 * @{
    3131 */
  • kernel/arch/mips32/src/mips32.c

    re662a5f r96e0748d  
    3434
    3535#include <arch.h>
    36 #include <arch/boot.h>
    3736#include <arch/cp0.h>
    3837#include <arch/exception.h>
     
    5958#include <arch/asm/regname.h>
    6059
    61 /* Size of the code jumping to the exception handler code 
    62  * - J+NOP 
    63  */
    64 #define EXCEPTION_JUMP_SIZE    8
    65 
    66 #define TLB_EXC ((char *) 0x80000000)
    67 #define NORM_EXC ((char *) 0x80000180)
    68 #define CACHE_EXC ((char *) 0x80000100)
     60/* Size of the code jumping to the exception handler code
     61 * - J+NOP
     62 */
     63#define EXCEPTION_JUMP_SIZE  8
     64
     65#define TLB_EXC    ((char *) 0x80000000)
     66#define NORM_EXC   ((char *) 0x80000180)
     67#define CACHE_EXC  ((char *) 0x80000100)
    6968
    7069
    7170/* Why the linker moves the variable 64K away in assembler
    72  * when not in .text section ????????
    73  */
     71 * when not in .text section?
     72 */
     73
     74/* Stack pointer saved when entering user mode */
    7475uintptr_t supervisor_sp __attribute__ ((section (".text")));
    75 /* Stack pointer saved when entering user mode */
    76 /* TODO: How do we do it on SMP system???? */
    77 bootinfo_t bootinfo __attribute__ ((section (".text")));
    78 
    79 void arch_pre_main(void)
     76
     77count_t cpu_count = 0;
     78
     79void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
    8080{
    8181        /* Setup usermode */
    82         init.cnt = bootinfo.cnt;
    83        
    84         uint32_t i;
    85        
    86         for (i = 0; i < bootinfo.cnt; i++) {
    87                 init.tasks[i].addr = bootinfo.tasks[i].addr;
    88                 init.tasks[i].size = bootinfo.tasks[i].size;
     82        init.cnt = bootinfo->cnt;
     83       
     84        count_t i;
     85        for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
     86                init.tasks[i].addr = bootinfo->tasks[i].addr;
     87                init.tasks[i].size = bootinfo->tasks[i].size;
     88        }
     89       
     90        for (i = 0; i < CPUMAP_MAX_RECORDS; i++) {
     91                if ((bootinfo->cpumap & (1 << i)) != 0)
     92                        cpu_count++;
    8993        }
    9094}
  • kernel/arch/mips32/src/smp/smp.c

    re662a5f r96e0748d  
    3333 */
    3434
     35#include <config.h>
    3536#include <smp/smp.h>
     37#include <arch/arch.h>
    3638
    3739#ifdef CONFIG_SMP
     
    3941void smp_init(void)
    4042{
     43        config.cpu_count = cpu_count;
    4144}
    4245
  • kernel/arch/mips32/src/start.S

    re662a5f r96e0748d  
    3232#include <arch/context_offset.h>
    3333#include <arch/stack.h>
    34        
     34
    3535.text
    3636
     
    153153        # Move $k0 (superveisor_sp)
    154154        lw $k0, 0($k0)
    155 1:             
     1551:
    156156.endm
    157                
     157
    158158.org 0x0
    159159kernel_image_start:
     
    162162        ori $sp, $sp, %lo(end_stack)
    163163       
     164        /* Not sure about this, but might
     165           be needed for PIC code */
     166        lui $gp, 0x8000
     167       
    164168        /* $a1 contains physical address of bootinfo_t */
    165         /* $a2 contains size of bootinfo_t */
    166        
    167         beq $a2, $0, bootinfo_end
    168        
    169         /* Not sure about this, but might be needed for PIC code???? */
    170         lui $gp, 0x8000
    171        
    172         lui $a3, %hi(bootinfo)
    173         ori $a3, $a3, %lo(bootinfo)
    174        
    175         bootinfo_loop:
    176                
    177                 lw $v0, 0($a1)
    178                 sw $v0, 0($a3)
    179                
    180                 addi $a1, $a1, 4
    181                 addi $a3, $a3, 4
    182                 addi $a2, $a2, -4
    183                
    184                 bgtz $a2, bootinfo_loop
    185                 nop
    186                
    187         bootinfo_end:
    188169       
    189170        jal arch_pre_main
     
    206187exception_entry:
    207188        j exception_handler
    208         nop     
    209        
     189        nop
     190
    210191exception_handler:
    211192        KERNEL_STACK_TO_K0
     
    216197        mfc0 $k0, $cause
    217198       
    218         sra $k0, $k0, 0x2               # cp0_exc_cause() part 1
    219         andi $k0, $k0, 0x1f             # cp0_exc_cause() part 2
    220         sub $k0, 8                      # 8 = SYSCALL
     199        sra $k0, $k0, 0x2    # cp0_exc_cause() part 1
     200        andi $k0, $k0, 0x1f  # cp0_exc_cause() part 2
     201        sub $k0, 8           # 8 = SYSCALL
    221202       
    222203        beqz $k0, syscall_shortcut
    223         add $k0, 8                      # Revert $k0 back to correct exc number
     204        add $k0, 8           # Revert $k0 back to correct exc number
    224205       
    225206        REGISTERS_STORE_AND_EXC_RESET $sp
    226207       
    227208        move $a1, $sp
    228         jal exc_dispatch                # exc_dispatch(excno, register_space)
     209        jal exc_dispatch     # exc_dispatch(excno, register_space)
    229210        move $a0, $k0
    230211
  • kernel/arch/ppc32/include/arch.h

    re662a5f r96e0748d  
    2727 */
    2828
    29 /** @addtogroup ppc32   
     29/** @addtogroup ppc32
    3030 * @{
    3131 */
     
    3636#define KERN_ppc32_ARCH_H_
    3737
    38 #include <arch/drivers/cuda.h>
     38extern void arch_pre_main(void);
    3939
    4040#endif
  • kernel/arch/ppc32/include/boot/boot.h

    re662a5f r96e0748d  
    2727 */
    2828
    29 /** @addtogroup ppc32   
     29/** @addtogroup ppc32
    3030 * @{
    3131 */
     
    3636#define KERN_ppc32_BOOT_H_
    3737
    38 #define BOOT_OFFSET             0x8000
     38#define BOOT_OFFSET  0x8000
    3939
    4040/* Temporary stack size for boot process */
    41 #define TEMP_STACK_SIZE 0x1000
     41#define TEMP_STACK_SIZE  0x1000
    4242
    43 #define TASKMAP_MAX_RECORDS 32
    44 #define MEMMAP_MAX_RECORDS 32
     43#define TASKMAP_MAX_RECORDS  32
     44#define MEMMAP_MAX_RECORDS   32
    4545
    4646#ifndef __ASM__
  • kernel/arch/ppc32/src/boot/boot.S

    re662a5f r96e0748d  
    3434.global kernel_image_start
    3535kernel_image_start:
    36 
     36       
    3737        # load temporal kernel stack
    3838       
     
    5353       
    5454        addis r3, r3, 0x8000
    55 
     55       
    5656        lis r31, bootinfo@ha
    5757        addi r31, r31, bootinfo@l  # r31 = bootinfo
  • kernel/arch/ppc32/src/ppc32.c

    re662a5f r96e0748d  
    4646#include <ddi/irq.h>
    4747#include <arch/drivers/pic.h>
     48#include <macros.h>
    4849
    49 #define IRQ_COUNT       64
     50#define IRQ_COUNT  64
    5051
    5152bootinfo_t bootinfo;
     
    5354void arch_pre_main(void)
    5455{
    55         /* Setup usermode */
    5656        init.cnt = bootinfo.taskmap.count;
    5757       
    5858        uint32_t i;
    5959       
    60         for (i = 0; i < bootinfo.taskmap.count; i++) {
     60        for (i = 0; i < min3(bootinfo.taskmap.count, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
    6161                init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
    6262                init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  • kernel/arch/sparc64/include/arch.h

    re662a5f r96e0748d  
    4646#define NWINDOWS                8       /** Number of register window sets. */
    4747
     48#ifndef __ASM__
     49
     50extern void arch_pre_main(void);
     51
     52#endif /* __ASM__ */
     53
    4854#endif
    4955
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