#ifndef __ASM_PROCESSOR_H_
#define __ASM_PROCESSOR_H_ 1
-#define X86_GDT_ENTRY_SIZE 8
+#define X86_GDT_ENTRY_SIZE 8
-#ifndef __ASSEMBLY__
-
-enum {
- X86_GDT_ENTRY_NULL = 0,
- X86_GDT_ENTRY_UNUSED,
- X86_GDT_ENTRY_32BIT_CS,
- X86_GDT_ENTRY_32BIT_DS,
- X86_GDT_ENTRY_32BIT_FS,
- X86_GDT_ENTRY_16BIT_CS,
- X86_GDT_ENTRY_16BIT_DS,
- X86_GDT_NUM_ENTRIES
-};
-#else
-/* NOTE: If the above enum is modified, this define must be checked */
-#define X86_GDT_ENTRY_32BIT_DS 3
-#define X86_GDT_NUM_ENTRIES 7
-#endif
+#define X86_GDT_ENTRY_NULL 0
+#define X86_GDT_ENTRY_UNUSED 1
+#define X86_GDT_ENTRY_32BIT_CS 2
+#define X86_GDT_ENTRY_32BIT_DS 3
+#define X86_GDT_ENTRY_32BIT_FS 4
+#define X86_GDT_ENTRY_16BIT_CS 5
+#define X86_GDT_ENTRY_16BIT_DS 6
+#define X86_GDT_ENTRY_16BIT_FLAT_CS 7
+#define X86_GDT_ENTRY_16BIT_FLAT_DS 8
+#define X86_GDT_NUM_ENTRIES 9
#define X86_GDT_SIZE (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
+/* Length of the public header on Intel microcode blobs */
+#define UCODE_HEADER_LEN 0x30
+
#ifndef __ASSEMBLY__
-#define PORT_RESET 0xcf9
+/*
+ * This register is documented in (for example) the Intel Atom Processor E3800
+ * Product Family Datasheet in "PCU - Power Management Controller (PMC)".
+ *
+ * RST_CNT: Reset Control Register (RST_CNT) Offset cf9.
+ *
+ * The naming follows Intel's naming.
+ */
+#define IO_PORT_RESET 0xcf9
+
+enum {
+ SYS_RST = 1 << 1, /* 0 for soft reset, 1 for hard reset */
+ RST_CPU = 1 << 2, /* initiate reset */
+ FULL_RST = 1 << 3, /* full power cycle */
+};
+
+/**
+ * x86_full_reset() - reset everything: perform a full power cycle
+ */
+void x86_full_reset(void);
static inline __attribute__((always_inline)) void cpu_hlt(void)
{