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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2015-03-05 05:53:08 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2015-03-05 05:53:08 +0000 |
| commit | cd06a4774fd211fe42415621393407b4a8d26cbb (patch) | |
| tree | 52b067b82098994e334de129bfd31bedec0cdd1c | |
| parent | 80210b69e0654f1a39d17d24489e2721b9253c5b (diff) | |
| download | FreeBSD-src-cd06a4774fd211fe42415621393407b4a8d26cbb.zip FreeBSD-src-cd06a4774fd211fe42415621393407b4a8d26cbb.tar.gz | |
Move IVOR setup from assembler to C, decreasing required assumptions about
address formats for trap handlers.
| -rw-r--r-- | sys/powerpc/booke/locore.S | 36 | ||||
| -rw-r--r-- | sys/powerpc/booke/machdep.c | 45 |
2 files changed, 45 insertions, 36 deletions
diff --git a/sys/powerpc/booke/locore.S b/sys/powerpc/booke/locore.S index 0fcca91..9d00327 100644 --- a/sys/powerpc/booke/locore.S +++ b/sys/powerpc/booke/locore.S @@ -536,42 +536,6 @@ __boot_page_padding: /* locore subroutines */ /************************************************************************/ -ivor_setup: - /* Set base address of interrupt handler routines */ - lis %r3, interrupt_vector_base@h - mtspr SPR_IVPR, %r3 - - /* Assign interrupt handler routines offsets */ - li %r3, int_critical_input@l - mtspr SPR_IVOR0, %r3 - li %r3, int_machine_check@l - mtspr SPR_IVOR1, %r3 - li %r3, int_data_storage@l - mtspr SPR_IVOR2, %r3 - li %r3, int_instr_storage@l - mtspr SPR_IVOR3, %r3 - li %r3, int_external_input@l - mtspr SPR_IVOR4, %r3 - li %r3, int_alignment@l - mtspr SPR_IVOR5, %r3 - li %r3, int_program@l - mtspr SPR_IVOR6, %r3 - li %r3, int_syscall@l - mtspr SPR_IVOR8, %r3 - li %r3, int_decrementer@l - mtspr SPR_IVOR10, %r3 - li %r3, int_fixed_interval_timer@l - mtspr SPR_IVOR11, %r3 - li %r3, int_watchdog@l - mtspr SPR_IVOR12, %r3 - li %r3, int_data_tlb_error@l - mtspr SPR_IVOR13, %r3 - li %r3, int_inst_tlb_error@l - mtspr SPR_IVOR14, %r3 - li %r3, int_debug@l - mtspr SPR_IVOR15, %r3 - blr - /* * void tid_flush(tlbtid_t tid); * diff --git a/sys/powerpc/booke/machdep.c b/sys/powerpc/booke/machdep.c index 42a4f04..40f3724 100644 --- a/sys/powerpc/booke/machdep.c +++ b/sys/powerpc/booke/machdep.c @@ -187,6 +187,51 @@ SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_booke_startup, NULL); void print_kernel_section_addr(void); void print_kenv(void); u_int booke_init(uint32_t, uint32_t); +void ivor_setup(void); + +extern void *interrupt_vector_base; +extern void *int_critical_input; +extern void *int_machine_check; +extern void *int_data_storage; +extern void *int_instr_storage; +extern void *int_external_input; +extern void *int_alignment; +extern void *int_program; +extern void *int_syscall; +extern void *int_decrementer; +extern void *int_fixed_interval_timer; +extern void *int_watchdog; +extern void *int_data_tlb_error; +extern void *int_inst_tlb_error; +extern void *int_debug; + +#define SET_TRAP(ivor, handler) \ + KASSERT(((uintptr_t)(&handler) & ~0xffffUL) == \ + ((uintptr_t)(&interrupt_vector_base) & ~0xffffUL), \ + ("Handler " #handler " too far from interrupt vector base")); \ + mtspr(ivor, (uintptr_t)(&handler) & 0xffffUL); + +void +ivor_setup(void) +{ + + mtspr(SPR_IVPR, ((uintptr_t)&interrupt_vector_base) & 0xffff0000); + + SET_TRAP(SPR_IVOR0, int_critical_input); + SET_TRAP(SPR_IVOR1, int_machine_check); + SET_TRAP(SPR_IVOR2, int_data_storage); + SET_TRAP(SPR_IVOR3, int_instr_storage); + SET_TRAP(SPR_IVOR4, int_external_input); + SET_TRAP(SPR_IVOR5, int_alignment); + SET_TRAP(SPR_IVOR6, int_program); + SET_TRAP(SPR_IVOR8, int_syscall); + SET_TRAP(SPR_IVOR10, int_decrementer); + SET_TRAP(SPR_IVOR11, int_fixed_interval_timer); + SET_TRAP(SPR_IVOR12, int_watchdog); + SET_TRAP(SPR_IVOR13, int_data_tlb_error); + SET_TRAP(SPR_IVOR14, int_inst_tlb_error); + SET_TRAP(SPR_IVOR15, int_debug); +} static void cpu_booke_startup(void *dummy) |
