Changeset 9928240 in mainline for kernel/arch/ia64/src/interrupt.c

Timestamp:

2014-10-12T11:18:49Z (10 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

416ef49

Parents:

0b49d4e

Message:

Use exc_dispatcher() for ia64 interruptions.

This is necessary for proper cycle accounting and also CPU state
tracking (idle / non-idle). Syscalls continue to use a different
path, but call syscall_handler() eventually. The speculation
vector needs to be handled differently, outside of exc_dispatch().

File:

• kernel/arch/ia64/src/interrupt.c (modified) (9 diffs)

kernel/arch/ia64/src/interrupt.c

@@ -54 +54 @@
 #include <synch/spinlock.h>
 #include <mm/tlb.h>
+#include <arch/mm/tlb.h>
 #include <symtab.h>
 #include <putchar.h>
@@ -59 +60 @@
 #define VECTORS_64_BUNDLE        20
 #define VECTORS_16_BUNDLE        48
-#define VECTORS_16_BUNDLE_START  0x5000
-
-#define VECTOR_MAX  0x7f00
-
-#define BUNDLE_SIZE  16
+#define VECTORS_16_BUNDLE_START  0x50
+
+#define VECTOR_MAX  0x7f
 
 static const char *vector_names_64_bundle[VECTORS_64_BUNDLE] = {
@@ -122 +121 @@
 };
 
-static const char *vector_to_string(uint16_t vector)
-{
-        ASSERT(vector <= VECTOR_MAX);
-        
-        if (vector >= VECTORS_16_BUNDLE_START)
-                return vector_names_16_bundle[(vector -
-                    VECTORS_16_BUNDLE_START) / (16 * BUNDLE_SIZE)];
+static const char *vector_to_string(unsigned int n)
+{
+        ASSERT(n <= VECTOR_MAX);
+        
+        if (n >= VECTORS_16_BUNDLE_START)
+                return vector_names_16_bundle[n - VECTORS_16_BUNDLE_START];
         else
-                return vector_names_64_bundle[vector / (64 * BUNDLE_SIZE)];
+                return vector_names_64_bundle[n / 4];
 }
 
@@ -153 +151 @@
 }
 
-void general_exception(uint64_t vector, istate_t *istate)
+void general_exception(unsigned int n, istate_t *istate)
 {
         const char *desc;
@@ -182 +180 @@
         
         fault_if_from_uspace(istate, "General Exception (%s).", desc);
-        panic_badtrap(istate, vector, "General Exception (%s).", desc);
-}
-
-void disabled_fp_register(uint64_t vector, istate_t *istate)
+        panic_badtrap(istate, n, "General Exception (%s).", desc);
+}
+
+void disabled_fp_register(unsigned int n, istate_t *istate)
 {
 #ifdef CONFIG_FPU_LAZY
@@ -191 +189 @@
 #else
         fault_if_from_uspace(istate, "Interruption: %#hx (%s).",
-            (uint16_t) vector, vector_to_string(vector));
+            (uint16_t) n, vector_to_string(n));
         panic_badtrap(istate, vector, "Interruption: %#hx (%s).",
-            (uint16_t) vector, vector_to_string(vector));
+            (uint16_t) n, vector_to_string(n));
 #endif
 }
 
-void nop_handler(uint64_t vector, istate_t *istate)
-{
-}
-
 /** Handle syscall. */
-int break_instruction(uint64_t vector, istate_t *istate)
+sysarg_t break_instruction(unsigned int n, istate_t *istate)
 {
         /*
@@ -218 +212 @@
 }
 
-void universal_handler(uint64_t vector, istate_t *istate)
+void universal_handler(unsigned int n, istate_t *istate)
 {
         fault_if_from_uspace(istate, "Interruption: %#hx (%s).",
-            (uint16_t) vector, vector_to_string(vector));
-        panic_badtrap(istate, vector, "Interruption: %#hx (%s).",
-            (uint16_t) vector, vector_to_string(vector));
+            n, vector_to_string(n));
+        panic_badtrap(istate, n, "Interruption: %#hx (%s).",
+            n, vector_to_string(n));
 }
 
@@ -229 +223 @@
 {
         asm volatile (
-                "mov cr.eoi=r0;;"
+                "mov cr.eoi = r0 ;;"
         );
 }
 
-void external_interrupt(uint64_t vector, istate_t *istate)
+void external_interrupt(unsigned int n, istate_t *istate)
 {
         cr_ivr_t ivr;
@@ -298 +292 @@
 }
 
+void exception_init(void)
+{
+        unsigned int i;
+
+        for (i = 0; i < IVT_ITEMS; i++)
+                exc_register(i, "universal_handler", false, universal_handler);
+
+        exc_register(EXC_ALT_ITLB_FAULT,
+            vector_to_string(EXC_ALT_ITLB_FAULT), true,
+            alternate_instruction_tlb_fault);
+        exc_register(EXC_ALT_DTLB_FAULT,
+            vector_to_string(EXC_ALT_DTLB_FAULT), true,
+            alternate_data_tlb_fault);
+        exc_register(EXC_NESTED_TLB_FAULT,
+            vector_to_string(EXC_NESTED_TLB_FAULT), false,
+            data_nested_tlb_fault);
+        exc_register(EXC_DATA_D_BIT_FAULT,
+            vector_to_string(EXC_DATA_D_BIT_FAULT), true,
+            data_dirty_bit_fault);
+        exc_register(EXC_INST_A_BIT_FAULT,
+            vector_to_string(EXC_INST_A_BIT_FAULT), true,
+            instruction_access_bit_fault);
+        exc_register(EXC_DATA_A_BIT_FAULT, 
+            vector_to_string(EXC_DATA_A_BIT_FAULT), true,
+            data_access_bit_fault);
+        exc_register(EXC_EXT_INTERRUPT,
+            vector_to_string(EXC_EXT_INTERRUPT), true,
+            external_interrupt);
+
+        exc_register(EXC_PAGE_NOT_PRESENT,
+            vector_to_string(EXC_PAGE_NOT_PRESENT), true,
+            page_not_present);
+        exc_register(EXC_DATA_AR_FAULT,
+            vector_to_string(EXC_DATA_AR_FAULT), true,
+            data_access_rights_fault);
+        exc_register(EXC_GENERAL_EXCEPTION,
+            vector_to_string(EXC_GENERAL_EXCEPTION), false,
+            general_exception);
+        exc_register(EXC_DISABLED_FP_REG,
+            vector_to_string(EXC_DISABLED_FP_REG), true,
+            disabled_fp_register);
+}
+
 /** @}
  */