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MIPS32/64: Add 'irq' command support

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Add support for the 'irq' series of commands in the MIPS32/64
architecture, except for the 'irq -d' command, others can be
used.  Without the patch, the 'irq' command fails as follows:

  irq: cannot determine number of IRQs

Signed-off-by: Youling Tang <tangyouling@loongson.cn>
This commit is contained in:
Youling Tang 2021-04-23 15:40:41 +08:00 committed by Kazuhito Hagio
parent 704623dfde
commit 859d1c0e8a
2 changed files with 22 additions and 2 deletions
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10
mips.c
View File

@ -1126,8 +1126,14 @@ mips_init(int when)
machdep->get_irq_affinity = generic_get_irq_affinity; machdep->get_irq_affinity = generic_get_irq_affinity;
machdep->section_size_bits = _SECTION_SIZE_BITS; machdep->section_size_bits = _SECTION_SIZE_BITS;
machdep->max_physmem_bits = _MAX_PHYSMEM_BITS; machdep->max_physmem_bits = _MAX_PHYSMEM_BITS;
ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc,
"irq_desc", NULL, 0); if (symbol_exists("irq_desc"))
ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc,
"irq_desc", NULL, 0);
else if (kernel_symbol_exists("nr_irqs"))
get_symbol_data("nr_irqs", sizeof(unsigned int),
&machdep->nr_irqs);
mips_stackframe_init(); mips_stackframe_init();
if (!machdep->hz) if (!machdep->hz)

14
mips64.c
View File

@ -1160,6 +1160,9 @@ mips64_dump_machdep_table(ulong arg)
fprintf(fp, " is_task_addr: mips64_is_task_addr()\n"); fprintf(fp, " is_task_addr: mips64_is_task_addr()\n");
fprintf(fp, " verify_symbol: mips64_verify_symbol()\n"); fprintf(fp, " verify_symbol: mips64_verify_symbol()\n");
fprintf(fp, " dis_filter: generic_dis_filter()\n"); fprintf(fp, " dis_filter: generic_dis_filter()\n");
fprintf(fp, " dump_irq: generic_dump_irq()\n");
fprintf(fp, " show_interrupts: generic_show_interrupts()\n");
fprintf(fp, " get_irq_affinity: generic_get_irq_affinity()\n");
fprintf(fp, " cmd_mach: mips64_cmd_mach()\n"); fprintf(fp, " cmd_mach: mips64_cmd_mach()\n");
fprintf(fp, " get_smp_cpus: mips64_get_smp_cpus()\n"); fprintf(fp, " get_smp_cpus: mips64_get_smp_cpus()\n");
fprintf(fp, " is_kvaddr: generic_is_kvaddr()\n"); fprintf(fp, " is_kvaddr: generic_is_kvaddr()\n");
@ -1246,6 +1249,9 @@ mips64_init(int when)
machdep->is_task_addr = mips64_is_task_addr; machdep->is_task_addr = mips64_is_task_addr;
machdep->get_smp_cpus = mips64_get_smp_cpus; machdep->get_smp_cpus = mips64_get_smp_cpus;
machdep->dis_filter = generic_dis_filter; machdep->dis_filter = generic_dis_filter;
machdep->dump_irq = generic_dump_irq;
machdep->show_interrupts = generic_show_interrupts;
machdep->get_irq_affinity = generic_get_irq_affinity;
machdep->value_to_symbol = generic_machdep_value_to_symbol; machdep->value_to_symbol = generic_machdep_value_to_symbol;
machdep->init_kernel_pgd = NULL; machdep->init_kernel_pgd = NULL;
break; break;
@ -1257,6 +1263,14 @@ mips64_init(int when)
mips64_stackframe_init(); mips64_stackframe_init();
if (!machdep->hz) if (!machdep->hz)
machdep->hz = 250; machdep->hz = 250;
if (symbol_exists("irq_desc"))
ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc,
"irq_desc", NULL, 0);
else if (kernel_symbol_exists("nr_irqs"))
get_symbol_data("nr_irqs", sizeof(unsigned int),
&machdep->nr_irqs);
MEMBER_OFFSET_INIT(elf_prstatus_pr_reg, "elf_prstatus", MEMBER_OFFSET_INIT(elf_prstatus_pr_reg, "elf_prstatus",
"pr_reg"); "pr_reg");
STRUCT_SIZE_INIT(note_buf, "note_buf_t"); STRUCT_SIZE_INIT(note_buf, "note_buf_t");