Changeset 93e90c7 in mainline for arch/ia32/include/smp/apic.h

Timestamp:

2006-01-02T22:10:11Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

0132630

Parents:

95d191c

Message:

ia32 work.
Initialize LDR and DFR registers in Local APIC so that logical destination addresses work.

File:

• arch/ia32/include/smp/apic.h (modified) (2 diffs)

arch/ia32/include/smp/apic.h

@@ -94 +94 @@
 /** Destination masks. */
 #define DEST_ALL        0xff
+
+/** Dest format models. */
+#define MODEL_FLAT      0xf
+#define MODEL_CLUSTER   0x0
 
 /** Interrupt Command Register. */
@@ -248 +252 @@
 #define is_local_xapic(x)       (((x)&LAVR_Mask)==0x14)
 
+/** Logical Destination Register. */
+#define  LDR            (0x0d0/sizeof(__u32))
+union ldr {
+        __u32 value;
+        struct {
+                unsigned : 24;          /**< Reserver. */
+                __u8 id;                /**< Logical APIC ID. */
+        } __attribute__ ((packed));
+};
+typedef union ldr ldr_t;
+
+/** Destination Format Register. */
+#define DFR             (0x0e0/sizeof(__u32))
+union dfr {
+        __u32 value;
+        struct {
+                unsigned : 28;          /**< Reserved, all ones. */
+                unsigned model : 4;     /**< Model. */
+        } __attribute__ ((packed));
+};
+typedef union dfr dfr_t;
+
 /* IO APIC */
 #define IOREGSEL        (0x00/sizeof(__u32))