Subversion Repositories HelenOS

Rev

Rev 1787 | Rev 2071 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1787 Rev 1936
Line 43... Line 43...
43 
#include <symtab.h>
 43 
#include <symtab.h>
44 
#include <print.h>
 44 
#include <print.h>
45 
#include <interrupt.h>
 45 
#include <interrupt.h>
46 
#include <func.h>
 46 
#include <func.h>
47 
#include <console/kconsole.h>
 47 
#include <console/kconsole.h>
- 
 
 48 
#include <ddi/irq.h>
48 
#include <arch/debugger.h>
 49 
#include <arch/debugger.h>
49 
 
 50 
 
50 
static char * exctable[] = {
 51 
static char * exctable[] = {
51 
    "Interrupt",
 52 
    "Interrupt",
52 
    "TLB Modified",
 53 
    "TLB Modified",
Line 143... Line 144...
143 
    int i;
 144 
    int i;
144 
   
 145 
   
145 
    /* decode interrupt number and process the interrupt */
 146 
    /* decode interrupt number and process the interrupt */
146 
    cause = (cp0_cause_read() >> 8) &0xff;
 147 
    cause = (cp0_cause_read() >> 8) &0xff;
147 
   
 148 
   
148 
    for (i = 0; i < 8; i++)
 149 
    for (i = 0; i < 8; i++) {
149 
        if (cause & (1 << i))
 150 
        if (cause & (1 << i)) {
- 
 
 151 
            irq_t *irq = irq_dispatch_and_lock(i);
- 
 
 152 
            if (irq) {
- 
 
 153 
                /*
- 
 
 154 
                 * The IRQ handler was found.
- 
 
 155 
                 */
150 
            exc_dispatch(i+INT_OFFSET, istate);
 156 
                irq->handler(irq, irq->arg);
- 
 
 157 
                spinlock_unlock(&irq->lock);
- 
 
 158 
            } else {
- 
 
 159 
                /*
- 
 
 160 
                 * Spurious interrupt.
- 
 
 161 
                 */
- 
 
 162 
#ifdef CONFIG_DEBUG
- 
 
 163 
                printf("cpu%d: spurious interrupt (inum=%d)\n", CPU->id, i);
- 
 
 164 
#endif
- 
 
 165 
            }
- 
 
 166 
        }
- 
 
 167 
    }
151 
}
 168 
}
152 
 
 169 
 
153 
/** Handle syscall userspace call */
 170 
/** Handle syscall userspace call */
154 
static void syscall_exception(int n, istate_t *istate)
 171 
static void syscall_exception(int n, istate_t *istate)
155 
{
 172 
{
Line 159... Line 176...
159 
void exception_init(void)
 176 
void exception_init(void)
160 
{
 177 
{
161 
    int i;
 178 
    int i;
162 
 
 179 
 
163 
    /* Clear exception table */
 180 
    /* Clear exception table */
164 
    for (i=0;i < IVT_ITEMS; i++)
 181 
    for (i = 0; i < IVT_ITEMS; i++)
165 
        exc_register(i, "undef", (iroutine) unhandled_exception);
 182 
        exc_register(i, "undef", (iroutine) unhandled_exception);
- 
 
 183 
   
166 
    exc_register(EXC_Bp, "bkpoint", (iroutine) breakpoint_exception);
 184 
    exc_register(EXC_Bp, "bkpoint", (iroutine) breakpoint_exception);
167 
    exc_register(EXC_RI, "resinstr", (iroutine) reserved_instr_exception);
 185 
    exc_register(EXC_RI, "resinstr", (iroutine) reserved_instr_exception);
168 
    exc_register(EXC_Mod, "tlb_mod", (iroutine) tlbmod_exception);
 186 
    exc_register(EXC_Mod, "tlb_mod", (iroutine) tlbmod_exception);
169 
    exc_register(EXC_TLBL, "tlbinvl", (iroutine) tlbinv_exception);
 187 
    exc_register(EXC_TLBL, "tlbinvl", (iroutine) tlbinv_exception);
170 
    exc_register(EXC_TLBS, "tlbinvl", (iroutine) tlbinv_exception);
 188 
    exc_register(EXC_TLBS, "tlbinvl", (iroutine) tlbinv_exception);