Added support for the 'irq' series of commands in the LoongArch64
architecture, except for the 'irq -d' command, others can be used.
The result of using the 'irq' command without this patch is as follows:
crash> irq
IRQ IRQ_DESC/_DATA IRQACTION NAME
...
16 9000000090423c00 9000000000f4c500
17 9000000090423e00 9000000000f4c500
18 9000000090495c00 9000000000f4c500
19 9000000090494a00 9000000000f4c500
20 9000000090496400 9000000090418480 "IPI"
21 9000000090496200 9000000090418500 "timer"
22 9000000090cb2600 9000000090d9c780 "acpi"
23 9000000090cb3c00 (unused)
24 9000000090cb1800 (unused)
25 9000000090cb0800 900000009117f580 "loongson_i2c"
900000009117ee80 "loongson_i2c"
900000009117cc00 "loongson_i2c"
900000009117e800 "loongson_i2c"
900000009117c780 "loongson_i2c"
900000009117df00 "loongson_i2c"
...
Co-developed-by: Youling Tang <tangyouling@xxxxxxxxxxx>
Signed-off-by: Youling Tang <tangyouling@xxxxxxxxxxx>
Signed-off-by: Ming Wang <wangming01@xxxxxxxxxxx>
---
loongarch64.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/loongarch64.c b/loongarch64.c
index 5c19933..6437c4a 100644
--- a/loongarch64.c
+++ b/loongarch64.c
@@ -1158,6 +1158,9 @@ loongarch64_dump_machdep_table(ulong arg)
fprintf(fp, " is_task_addr: loongarch64_is_task_addr()\n");
fprintf(fp, " verify_symbol: loongarch64_verify_symbol()\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: loongarch64_cmd_mach()\n");
fprintf(fp, " get_smp_cpus: loongarch64_get_smp_cpus()\n");
fprintf(fp, " is_kvaddr: generic_is_kvaddr()\n");
@@ -1240,6 +1243,9 @@ loongarch64_init(int when)
machdep->is_task_addr = loongarch64_is_task_addr;
machdep->get_smp_cpus = loongarch64_get_smp_cpus;
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->init_kernel_pgd = NULL;
break;
@@ -1247,7 +1253,16 @@ loongarch64_init(int when)
case POST_GDB:
machdep->section_size_bits = _SECTION_SIZE_BITS;
machdep->max_physmem_bits = _MAX_PHYSMEM_BITS;
+
+ 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);
+
loongarch64_stackframe_init();
+
if (!machdep->hz)
machdep->hz = 250;
break;
--
2.39.2
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