feat: add lab-rv32i-c-interrupts card

2026-07-21 19:14:20 +02:00
commit 8820c2a22e
23 changed files with 4433 additions and 0 deletions
@@ -0,0 +1,62 @@
+#include "c10_common.h"
+
+volatile uint32_t g_task03_count;
+volatile uint32_t g_task03_mcause;
+volatile uint32_t g_task03_pending_asserted;
+volatile uint32_t g_task03_blocked_without_msie;
+volatile uint32_t g_task03_blocked_without_mie;
+volatile uint32_t g_task03_delivered_with_both;
+volatile uint32_t g_task03_pending_after;
+volatile uint32_t g_task03_pass;
+
+void __attribute__((interrupt("machine"))) isr_machine_softirq(void)
+{
+    g_task03_mcause = read_csr(mcause);
+    tb_clr_softirq(0);
+    g_task03_count++;
+}
+
+int main(void)
+{
+    c10_disable_interrupts();
+    tb_set_softirq(0);
+    c10_settle();
+    g_task03_pending_asserted =
+        (read_csr(mip) & MIP_MSIP) != 0u ? 1u : 0u;
+
+    c10_global_irq_enable(true);
+    c10_settle();
+    g_task03_blocked_without_msie = g_task03_count == 0u ? 1u : 0u;
+
+    c10_global_irq_enable(false);
+    c10_software_irq_enable(true);
+    c10_settle();
+    g_task03_blocked_without_mie = g_task03_count == 0u ? 1u : 0u;
+
+    c10_global_irq_enable(true);
+    g_task03_delivered_with_both = c10_wait_for(&g_task03_count, 1u) ? 1u : 0u;
+
+    c10_global_irq_enable(false);
+    c10_settle();
+    g_task03_pending_after =
+        (read_csr(mip) & MIP_MSIP) != 0u ? 1u : 0u;
+    c10_software_irq_enable(false);
+
+    g_task03_pass = g_task03_pending_asserted == 1u &&
+                    g_task03_blocked_without_msie == 1u &&
+                    g_task03_blocked_without_mie == 1u &&
+                    g_task03_delivered_with_both == 1u &&
+                    g_task03_count == 1u &&
+                    g_task03_mcause == MACHINE_SOFTWARE_IRQ_CAUSE &&
+                    g_task03_pending_after == 0u;
+
+    c10_report("T03 pending=", g_task03_pending_asserted);
+    c10_report("T03 blocked_no_msie=", g_task03_blocked_without_msie);
+    c10_report("T03 blocked_no_mie=", g_task03_blocked_without_mie);
+    c10_report("T03 delivered_both=", g_task03_delivered_with_both);
+    c10_report("T03 count=", g_task03_count);
+    c10_report("T03 mcause=", g_task03_mcause);
+    c10_report("T03 pending_after=", g_task03_pending_after);
+    c10_report("T03 pass=", g_task03_pass);
+    return g_task03_pass ? 0 : 1;
+}