1 files changed, 77 insertions, 0 deletions
diff --git a/arch/x86/include/asm/lapic.h b/arch/x86/include/asm/lapic.h
new file mode 100644
index 0000000..78eef6a
--- /dev/null
+++ b/arch/x86/include/asm/lapic.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * From coreboot file of same name
+ *
+ * Copyright (C) 2014 Google, Inc
+ */
+
+#ifndef _ARCH_ASM_LAPIC_H
+#define _ARCH_ASM_LAPIC_H
+
+#define LAPIC_DEFAULT_BASE		0xfee00000
+
+#define LAPIC_ID			0x020
+#define LAPIC_LVR			0x030
+
+#define LAPIC_TASKPRI			0x080
+#define LAPIC_TPRI_MASK			0xff
+
+#define LAPIC_RRR			0x0c0
+
+#define LAPIC_SPIV			0x0f0
+#define LAPIC_SPIV_ENABLE		0x100
+
+#define LAPIC_ICR			0x300
+#define LAPIC_DEST_SELF			0x40000
+#define LAPIC_DEST_ALLINC		0x80000
+#define LAPIC_DEST_ALLBUT		0xc0000
+#define LAPIC_ICR_RR_MASK		0x30000
+#define LAPIC_ICR_RR_INVALID		0x00000
+#define LAPIC_ICR_RR_INPROG		0x10000
+#define LAPIC_ICR_RR_VALID		0x20000
+#define LAPIC_INT_LEVELTRIG		0x08000
+#define LAPIC_INT_ASSERT		0x04000
+#define LAPIC_ICR_BUSY			0x01000
+#define LAPIC_DEST_LOGICAL		0x00800
+#define LAPIC_DM_FIXED			0x00000
+#define LAPIC_DM_LOWEST			0x00100
+#define LAPIC_DM_SMI			0x00200
+#define LAPIC_DM_REMRD			0x00300
+#define LAPIC_DM_NMI			0x00400
+#define LAPIC_DM_INIT			0x00500
+#define LAPIC_DM_STARTUP		0x00600
+#define LAPIC_DM_EXTINT			0x00700
+#define LAPIC_VECTOR_MASK		0x000ff
+
+#define LAPIC_ICR2			0x310
+#define GET_LAPIC_DEST_FIELD(x)		(((x) >> 24) & 0xff)
+#define SET_LAPIC_DEST_FIELD(x)		((x) << 24)
+
+#define LAPIC_LVT0			0x350
+#define LAPIC_LVT1			0x360
+#define LAPIC_LVT_MASKED		(1 << 16)
+#define LAPIC_LVT_LEVEL_TRIGGER		(1 << 15)
+#define LAPIC_LVT_REMOTE_IRR		(1 << 14)
+#define LAPIC_INPUT_POLARITY		(1 << 13)
+#define LAPIC_SEND_PENDING		(1 << 12)
+#define LAPIC_LVT_RESERVED_1		(1 << 11)
+#define LAPIC_DELIVERY_MODE_MASK	(7 << 8)
+#define LAPIC_DELIVERY_MODE_FIXED	(0 << 8)
+#define LAPIC_DELIVERY_MODE_NMI		(4 << 8)
+#define LAPIC_DELIVERY_MODE_EXTINT	(7 << 8)
+
+unsigned long lapic_read(unsigned long reg);
+
+void lapic_write(unsigned long reg, unsigned long v);
+
+void enable_lapic(void);
+
+void disable_lapic(void);
+
+unsigned long lapicid(void);
+
+int lapic_remote_read(int apicid, int reg, unsigned long *pvalue);
+
+void lapic_setup(void);
+
+#endif