--- /dev/null
+#ifndef _ASM_POWERPC_MPIC_H
+#define _ASM_POWERPC_MPIC_H
+#ifdef __KERNEL__
+
+#include <linux/irq.h>
+#include <asm/dcr.h>
+#include <asm/msi_bitmap.h>
+
+/*
+ * Global registers
+ */
+
+#define MPIC_GREG_BASE 0x01000
+
+#define MPIC_GREG_FEATURE_0 0x00000
+#define MPIC_GREG_FEATURE_LAST_SRC_MASK 0x07ff0000
+#define MPIC_GREG_FEATURE_LAST_SRC_SHIFT 16
+#define MPIC_GREG_FEATURE_LAST_CPU_MASK 0x00001f00
+#define MPIC_GREG_FEATURE_LAST_CPU_SHIFT 8
+#define MPIC_GREG_FEATURE_VERSION_MASK 0xff
+#define MPIC_GREG_FEATURE_1 0x00010
+#define MPIC_GREG_GLOBAL_CONF_0 0x00020
+#define MPIC_GREG_GCONF_RESET 0x80000000
+/* On the FSL mpic implementations the Mode field is expand to be
+ * 2 bits wide:
+ * 0b00 = pass through (interrupts routed to IRQ0)
+ * 0b01 = Mixed mode
+ * 0b10 = reserved
+ * 0b11 = External proxy / coreint
+ */
+#define MPIC_GREG_GCONF_COREINT 0x60000000
+#define MPIC_GREG_GCONF_8259_PTHROU_DIS 0x20000000
+#define MPIC_GREG_GCONF_NO_BIAS 0x10000000
+#define MPIC_GREG_GCONF_BASE_MASK 0x000fffff
+#define MPIC_GREG_GCONF_MCK 0x08000000
+#define MPIC_GREG_GLOBAL_CONF_1 0x00030
+#define MPIC_GREG_VENDOR_0 0x00040
+#define MPIC_GREG_VENDOR_1 0x00050
+#define MPIC_GREG_VENDOR_2 0x00060
+#define MPIC_GREG_VENDOR_3 0x00070
+#define MPIC_GREG_VENDOR_ID 0x00080
+#define MPIC_GREG_VENDOR_ID_STEPPING_MASK 0x00ff0000
+#define MPIC_GREG_VENDOR_ID_STEPPING_SHIFT 16
+#define MPIC_GREG_VENDOR_ID_DEVICE_ID_MASK 0x0000ff00
+#define MPIC_GREG_VENDOR_ID_DEVICE_ID_SHIFT 8
+#define MPIC_GREG_VENDOR_ID_VENDOR_ID_MASK 0x000000ff
+#define MPIC_GREG_PROCESSOR_INIT 0x00090
+#define MPIC_GREG_IPI_VECTOR_PRI_0 0x000a0
+#define MPIC_GREG_IPI_VECTOR_PRI_1 0x000b0
+#define MPIC_GREG_IPI_VECTOR_PRI_2 0x000c0
+#define MPIC_GREG_IPI_VECTOR_PRI_3 0x000d0
+#define MPIC_GREG_IPI_STRIDE 0x10
+#define MPIC_GREG_SPURIOUS 0x000e0
+#define MPIC_GREG_TIMER_FREQ 0x000f0
+
+/*
+ *
+ * Timer registers
+ */
+#define MPIC_TIMER_BASE 0x01100
+#define MPIC_TIMER_STRIDE 0x40
+#define MPIC_TIMER_GROUP_STRIDE 0x1000
+
+#define MPIC_TIMER_CURRENT_CNT 0x00000
+#define MPIC_TIMER_BASE_CNT 0x00010
+#define MPIC_TIMER_VECTOR_PRI 0x00020
+#define MPIC_TIMER_DESTINATION 0x00030
+
+/*
+ * Per-Processor registers
+ */
+
+#define MPIC_CPU_THISBASE 0x00000
+#define MPIC_CPU_BASE 0x20000
+#define MPIC_CPU_STRIDE 0x01000
+
+#define MPIC_CPU_IPI_DISPATCH_0 0x00040
+#define MPIC_CPU_IPI_DISPATCH_1 0x00050
+#define MPIC_CPU_IPI_DISPATCH_2 0x00060
+#define MPIC_CPU_IPI_DISPATCH_3 0x00070
+#define MPIC_CPU_IPI_DISPATCH_STRIDE 0x00010
+#define MPIC_CPU_CURRENT_TASK_PRI 0x00080
+#define MPIC_CPU_TASKPRI_MASK 0x0000000f
+#define MPIC_CPU_WHOAMI 0x00090
+#define MPIC_CPU_WHOAMI_MASK 0x0000001f
+#define MPIC_CPU_INTACK 0x000a0
+#define MPIC_CPU_EOI 0x000b0
+#define MPIC_CPU_MCACK 0x000c0
+
+/*
+ * Per-source registers
+ */
+
+#define MPIC_IRQ_BASE 0x10000
+#define MPIC_IRQ_STRIDE 0x00020
+#define MPIC_IRQ_VECTOR_PRI 0x00000
+#define MPIC_VECPRI_MASK 0x80000000
+#define MPIC_VECPRI_ACTIVITY 0x40000000 /* Read Only */
+#define MPIC_VECPRI_PRIORITY_MASK 0x000f0000
+#define MPIC_VECPRI_PRIORITY_SHIFT 16
+#define MPIC_VECPRI_VECTOR_MASK 0x000007ff
+#define MPIC_VECPRI_POLARITY_POSITIVE 0x00800000
+#define MPIC_VECPRI_POLARITY_NEGATIVE 0x00000000
+#define MPIC_VECPRI_POLARITY_MASK 0x00800000
+#define MPIC_VECPRI_SENSE_LEVEL 0x00400000
+#define MPIC_VECPRI_SENSE_EDGE 0x00000000
+#define MPIC_VECPRI_SENSE_MASK 0x00400000
+#define MPIC_IRQ_DESTINATION 0x00010
+
+#define MPIC_FSL_BRR1 0x00000
+#define MPIC_FSL_BRR1_VER 0x0000ffff
+
+#define MPIC_MAX_IRQ_SOURCES 2048
+#define MPIC_MAX_CPUS 32
+#define MPIC_MAX_ISU 32
+
+#define MPIC_MAX_ERR 32
+#define MPIC_FSL_ERR_INT 16
+
+/*
+ * Tsi108 implementation of MPIC has many differences from the original one
+ */
+
+/*
+ * Global registers
+ */
+
+#define TSI108_GREG_BASE 0x00000
+#define TSI108_GREG_FEATURE_0 0x00000
+#define TSI108_GREG_GLOBAL_CONF_0 0x00004
+#define TSI108_GREG_VENDOR_ID 0x0000c
+#define TSI108_GREG_IPI_VECTOR_PRI_0 0x00204 /* Doorbell 0 */
+#define TSI108_GREG_IPI_STRIDE 0x0c
+#define TSI108_GREG_SPURIOUS 0x00010
+#define TSI108_GREG_TIMER_FREQ 0x00014
+
+/*
+ * Timer registers
+ */
+#define TSI108_TIMER_BASE 0x0030
+#define TSI108_TIMER_STRIDE 0x10
+#define TSI108_TIMER_CURRENT_CNT 0x00000
+#define TSI108_TIMER_BASE_CNT 0x00004
+#define TSI108_TIMER_VECTOR_PRI 0x00008
+#define TSI108_TIMER_DESTINATION 0x0000c
+
+/*
+ * Per-Processor registers
+ */
+#define TSI108_CPU_BASE 0x00300
+#define TSI108_CPU_STRIDE 0x00040
+#define TSI108_CPU_IPI_DISPATCH_0 0x00200
+#define TSI108_CPU_IPI_DISPATCH_STRIDE 0x00000
+#define TSI108_CPU_CURRENT_TASK_PRI 0x00000
+#define TSI108_CPU_WHOAMI 0xffffffff
+#define TSI108_CPU_INTACK 0x00004
+#define TSI108_CPU_EOI 0x00008
+#define TSI108_CPU_MCACK 0x00004 /* Doesn't really exist here */
+
+/*
+ * Per-source registers
+ */
+#define TSI108_IRQ_BASE 0x00100
+#define TSI108_IRQ_STRIDE 0x00008
+#define TSI108_IRQ_VECTOR_PRI 0x00000
+#define TSI108_VECPRI_VECTOR_MASK 0x000000ff
+#define TSI108_VECPRI_POLARITY_POSITIVE 0x01000000
+#define TSI108_VECPRI_POLARITY_NEGATIVE 0x00000000
+#define TSI108_VECPRI_SENSE_LEVEL 0x02000000
+#define TSI108_VECPRI_SENSE_EDGE 0x00000000
+#define TSI108_VECPRI_POLARITY_MASK 0x01000000
+#define TSI108_VECPRI_SENSE_MASK 0x02000000
+#define TSI108_IRQ_DESTINATION 0x00004
+
+/* weird mpic register indices and mask bits in the HW info array */
+enum {
+ MPIC_IDX_GREG_BASE = 0,
+ MPIC_IDX_GREG_FEATURE_0,
+ MPIC_IDX_GREG_GLOBAL_CONF_0,
+ MPIC_IDX_GREG_VENDOR_ID,
+ MPIC_IDX_GREG_IPI_VECTOR_PRI_0,
+ MPIC_IDX_GREG_IPI_STRIDE,
+ MPIC_IDX_GREG_SPURIOUS,
+ MPIC_IDX_GREG_TIMER_FREQ,
+
+ MPIC_IDX_TIMER_BASE,
+ MPIC_IDX_TIMER_STRIDE,
+ MPIC_IDX_TIMER_CURRENT_CNT,
+ MPIC_IDX_TIMER_BASE_CNT,
+ MPIC_IDX_TIMER_VECTOR_PRI,
+ MPIC_IDX_TIMER_DESTINATION,
+
+ MPIC_IDX_CPU_BASE,
+ MPIC_IDX_CPU_STRIDE,
+ MPIC_IDX_CPU_IPI_DISPATCH_0,
+ MPIC_IDX_CPU_IPI_DISPATCH_STRIDE,
+ MPIC_IDX_CPU_CURRENT_TASK_PRI,
+ MPIC_IDX_CPU_WHOAMI,
+ MPIC_IDX_CPU_INTACK,
+ MPIC_IDX_CPU_EOI,
+ MPIC_IDX_CPU_MCACK,
+
+ MPIC_IDX_IRQ_BASE,
+ MPIC_IDX_IRQ_STRIDE,
+ MPIC_IDX_IRQ_VECTOR_PRI,
+
+ MPIC_IDX_VECPRI_VECTOR_MASK,
+ MPIC_IDX_VECPRI_POLARITY_POSITIVE,
+ MPIC_IDX_VECPRI_POLARITY_NEGATIVE,
+ MPIC_IDX_VECPRI_SENSE_LEVEL,
+ MPIC_IDX_VECPRI_SENSE_EDGE,
+ MPIC_IDX_VECPRI_POLARITY_MASK,
+ MPIC_IDX_VECPRI_SENSE_MASK,
+ MPIC_IDX_IRQ_DESTINATION,
+ MPIC_IDX_END
+};
+
+
+#ifdef CONFIG_MPIC_U3_HT_IRQS
+/* Fixup table entry */
+struct mpic_irq_fixup
+{
+ u8 __iomem *base;
+ u8 __iomem *applebase;
+ u32 data;
+ unsigned int index;
+};
+#endif /* CONFIG_MPIC_U3_HT_IRQS */
+
+
+enum mpic_reg_type {
+ mpic_access_mmio_le,
+ mpic_access_mmio_be,
+#ifdef CONFIG_PPC_DCR
+ mpic_access_dcr
+#endif
+};
+
+struct mpic_reg_bank {
+ u32 __iomem *base;
+#ifdef CONFIG_PPC_DCR
+ dcr_host_t dhost;
+#endif /* CONFIG_PPC_DCR */
+};
+
+struct mpic_irq_save {
+ u32 vecprio,
+ dest;
+#ifdef CONFIG_MPIC_U3_HT_IRQS
+ u32 fixup_data;
+#endif
+};
+
+/* The instance data of a given MPIC */
+struct mpic
+{
+ /* The OpenFirmware dt node for this MPIC */
+ struct device_node *node;
+
+ /* The remapper for this MPIC */
+ struct irq_domain *irqhost;
+
+ /* The "linux" controller struct */
+ struct irq_chip hc_irq;
+#ifdef CONFIG_MPIC_U3_HT_IRQS
+ struct irq_chip hc_ht_irq;
+#endif
+#ifdef CONFIG_SMP
+ struct irq_chip hc_ipi;
+#endif
+ struct irq_chip hc_tm;
+ struct irq_chip hc_err;
+ const char *name;
+ /* Flags */
+ unsigned int flags;
+ /* How many irq sources in a given ISU */
+ unsigned int isu_size;
+ unsigned int isu_shift;
+ unsigned int isu_mask;
+ /* Number of sources */
+ unsigned int num_sources;
+
+ /* vector numbers used for internal sources (ipi/timers) */
+ unsigned int ipi_vecs[4];
+ unsigned int timer_vecs[8];
+ /* vector numbers used for FSL MPIC error interrupts */
+ unsigned int err_int_vecs[MPIC_MAX_ERR];
+
+ /* Spurious vector to program into unused sources */
+ unsigned int spurious_vec;
+
+#ifdef CONFIG_MPIC_U3_HT_IRQS
+ /* The fixup table */
+ struct mpic_irq_fixup *fixups;
+ raw_spinlock_t fixup_lock;
+#endif
+
+ /* Register access method */
+ enum mpic_reg_type reg_type;
+
+ /* The physical base address of the MPIC */
+ phys_addr_t paddr;
+
+ /* The various ioremap'ed bases */
+ struct mpic_reg_bank thiscpuregs;
+ struct mpic_reg_bank gregs;
+ struct mpic_reg_bank tmregs;
+ struct mpic_reg_bank cpuregs[MPIC_MAX_CPUS];
+ struct mpic_reg_bank isus[MPIC_MAX_ISU];
+
+ /* ioremap'ed base for error interrupt registers */
+ u32 __iomem *err_regs;
+
+ /* Protected sources */
+ unsigned long *protected;
+
+#ifdef CONFIG_MPIC_WEIRD
+ /* Pointer to HW info array */
+ u32 *hw_set;
+#endif
+
+#ifdef CONFIG_PCI_MSI
+ struct msi_bitmap msi_bitmap;
+#endif
+
+#ifdef CONFIG_MPIC_BROKEN_REGREAD
+ u32 isu_reg0_shadow[MPIC_MAX_IRQ_SOURCES];
+#endif
+
+ /* link */
+ struct mpic *next;
+
+#ifdef CONFIG_PM
+ struct mpic_irq_save *save_data;
+#endif
+};
+
+extern struct bus_type mpic_subsys;
+
+/*
+ * MPIC flags (passed to mpic_alloc)
+ *
+ * The top 4 bits contain an MPIC bhw id that is used to index the
+ * register offsets and some masks when CONFIG_MPIC_WEIRD is set.
+ * Note setting any ID (leaving those bits to 0) means standard MPIC
+ */
+
+/*
+ * This is a secondary ("chained") controller; it only uses the CPU0
+ * registers. Primary controllers have IPIs and affinity control.
+ */
+#define MPIC_SECONDARY 0x00000001
+
+/* Set this for a big-endian MPIC */
+#define MPIC_BIG_ENDIAN 0x00000002
+/* Broken U3 MPIC */
+#define MPIC_U3_HT_IRQS 0x00000004
+/* Broken IPI registers (autodetected) */
+#define MPIC_BROKEN_IPI 0x00000008
+/* Spurious vector requires EOI */
+#define MPIC_SPV_EOI 0x00000020
+/* No passthrough disable */
+#define MPIC_NO_PTHROU_DIS 0x00000040
+/* DCR based MPIC */
+#define MPIC_USES_DCR 0x00000080
+/* MPIC has 11-bit vector fields (or larger) */
+#define MPIC_LARGE_VECTORS 0x00000100
+/* Enable delivery of prio 15 interrupts as MCK instead of EE */
+#define MPIC_ENABLE_MCK 0x00000200
+/* Disable bias among target selection, spread interrupts evenly */
+#define MPIC_NO_BIAS 0x00000400
+/* Destination only supports a single CPU at a time */
+#define MPIC_SINGLE_DEST_CPU 0x00001000
+/* Enable CoreInt delivery of interrupts */
+#define MPIC_ENABLE_COREINT 0x00002000
+/* Do not reset the MPIC during initialization */
+#define MPIC_NO_RESET 0x00004000
+/* Freescale MPIC (compatible includes "fsl,mpic") */
+#define MPIC_FSL 0x00008000
+/* Freescale MPIC supports EIMR (error interrupt mask register).
+ * This flag is set for MPIC version >= 4.1 (version determined
+ * from the BRR1 register).
+*/
+#define MPIC_FSL_HAS_EIMR 0x00010000
+
+/* MPIC HW modification ID */
+#define MPIC_REGSET_MASK 0xf0000000
+#define MPIC_REGSET(val) (((val) & 0xf ) << 28)
+#define MPIC_GET_REGSET(flags) (((flags) >> 28) & 0xf)
+
+#define MPIC_REGSET_STANDARD MPIC_REGSET(0) /* Original MPIC */
+#define MPIC_REGSET_TSI108 MPIC_REGSET(1) /* Tsi108/109 PIC */
+
+/* Get the version of primary MPIC */
+extern u32 fsl_mpic_primary_get_version(void);
+
+/* Allocate the controller structure and setup the linux irq descs
+ * for the range if interrupts passed in. No HW initialization is
+ * actually performed.
+ *
+ * @phys_addr: physial base address of the MPIC
+ * @flags: flags, see constants above
+ * @isu_size: number of interrupts in an ISU. Use 0 to use a
+ * standard ISU-less setup (aka powermac)
+ * @irq_offset: first irq number to assign to this mpic
+ * @irq_count: number of irqs to use with this mpic IRQ sources. Pass 0
+ * to match the number of sources
+ * @ipi_offset: first irq number to assign to this mpic IPI sources,
+ * used only on primary mpic
+ * @senses: array of sense values
+ * @senses_num: number of entries in the array
+ *
+ * Note about the sense array. If none is passed, all interrupts are
+ * setup to be level negative unless MPIC_U3_HT_IRQS is set in which
+ * case they are edge positive (and the array is ignored anyway).
+ * The values in the array start at the first source of the MPIC,
+ * that is senses[0] correspond to linux irq "irq_offset".
+ */
+extern struct mpic *mpic_alloc(struct device_node *node,
+ phys_addr_t phys_addr,
+ unsigned int flags,
+ unsigned int isu_size,
+ unsigned int irq_count,
+ const char *name);
+
+/* Assign ISUs, to call before mpic_init()
+ *
+ * @mpic: controller structure as returned by mpic_alloc()
+ * @isu_num: ISU number
+ * @phys_addr: physical address of the ISU
+ */
+extern void mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
+ phys_addr_t phys_addr);
+
+
+/* Initialize the controller. After this has been called, none of the above
+ * should be called again for this mpic
+ */
+extern void mpic_init(struct mpic *mpic);
+
+/*
+ * All of the following functions must only be used after the
+ * ISUs have been assigned and the controller fully initialized
+ * with mpic_init()
+ */
+
+
+/* Change the priority of an interrupt. Default is 8 for irqs and
+ * 10 for IPIs. You can call this on both IPIs and IRQ numbers, but the
+ * IPI number is then the offset'ed (linux irq number mapped to the IPI)
+ */
+extern void mpic_irq_set_priority(unsigned int irq, unsigned int pri);
+
+/* Setup a non-boot CPU */
+extern void mpic_setup_this_cpu(void);
+
+/* Clean up for kexec (or cpu offline or ...) */
+extern void mpic_teardown_this_cpu(int secondary);
+
+/* Get the current cpu priority for this cpu (0..15) */
+extern int mpic_cpu_get_priority(void);
+
+/* Set the current cpu priority for this cpu */
+extern void mpic_cpu_set_priority(int prio);
+
+/* Request IPIs on primary mpic */
+extern void mpic_request_ipis(void);
+
+/* Send a message (IPI) to a given target (cpu number or MSG_*) */
+void smp_mpic_message_pass(int target, int msg);
+
+/* Unmask a specific virq */
+extern void mpic_unmask_irq(struct irq_data *d);
+/* Mask a specific virq */
+extern void mpic_mask_irq(struct irq_data *d);
+/* EOI a specific virq */
+extern void mpic_end_irq(struct irq_data *d);
+
+/* Fetch interrupt from a given mpic */
+extern unsigned int mpic_get_one_irq(struct mpic *mpic);
+/* This one gets from the primary mpic */
+extern unsigned int mpic_get_irq(void);
+/* This one gets from the primary mpic via CoreInt*/
+extern unsigned int mpic_get_coreint_irq(void);
+/* Fetch Machine Check interrupt from primary mpic */
+extern unsigned int mpic_get_mcirq(void);
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_MPIC_H */
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