/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ALPHA_HWRPB_H
#define __ALPHA_HWRPB_H

#define INIT_HWRPB ((struct hwrpb_struct *) 0x10000000)

/*
 * DEC processor types for Alpha systems.  Found in HWRPB.
 * These values are architected.
 */

#define EV3_CPU                 1       /* EV3                  */
#define EV4_CPU                 2       /* EV4 (21064)          */
#define LCA4_CPU                4       /* LCA4 (21066/21068)   */
#define EV5_CPU                 5       /* EV5 (21164)          */
#define EV45_CPU                6       /* EV4.5 (21064/xxx)    */
#define EV56_CPU                7       /* EV5.6 (21164)        */
#define EV6_CPU                 8       /* EV6 (21264)          */
#define PCA56_CPU               9       /* PCA56 (21164PC)      */
#define PCA57_CPU               10      /* PCA57 (notyet)       */
#define EV67_CPU                11      /* EV67 (21264A)        */
#define EV68CB_CPU              12      /* EV68CB (21264C)      */
#define EV68AL_CPU              13      /* EV68AL (21264B)      */
#define EV68CX_CPU              14      /* EV68CX (21264D)      */
#define EV7_CPU                 15      /* EV7 (21364)          */
#define EV79_CPU                16      /* EV79 (21364??)       */
#define EV69_CPU                17      /* EV69 (21264/EV69A)   */

/*
 * DEC system types for Alpha systems.  Found in HWRPB.
 * These values are architected.
 */

#define ST_ADU                    1     /* Alpha ADU systype    */
#define ST_DEC_4000               2     /* Cobra systype        */
#define ST_DEC_7000               3     /* Ruby systype         */
#define ST_DEC_3000_500           4     /* Flamingo systype     */
#define ST_DEC_2000_300           6     /* Jensen systype       */
#define ST_DEC_3000_300           7     /* Pelican systype      */
#define ST_DEC_2100_A500          9     /* Sable systype        */
#define ST_DEC_AXPVME_64         10     /* AXPvme system type   */
#define ST_DEC_AXPPCI_33         11     /* NoName system type   */
#define ST_DEC_TLASER            12     /* Turbolaser systype   */
#define ST_DEC_2100_A50          13     /* Avanti systype       */
#define ST_DEC_MUSTANG           14     /* Mustang systype      */
#define ST_DEC_ALCOR             15     /* Alcor (EV5) systype  */
#define ST_DEC_1000              17     /* Mikasa systype       */
#define ST_DEC_EB64              18     /* EB64 systype         */
#define ST_DEC_EB66              19     /* EB66 systype         */
#define ST_DEC_EB64P             20     /* EB64+ systype        */
#define ST_DEC_BURNS             21     /* laptop systype       */
#define ST_DEC_RAWHIDE           22     /* Rawhide systype      */
#define ST_DEC_K2                23     /* K2 systype           */
#define ST_DEC_LYNX              24     /* Lynx systype         */
#define ST_DEC_XL                25     /* Alpha XL systype     */
#define ST_DEC_EB164             26     /* EB164 systype        */
#define ST_DEC_NORITAKE          27     /* Noritake systype     */
#define ST_DEC_CORTEX            28     /* Cortex systype       */
#define ST_DEC_MIATA             30     /* Miata systype        */
#define ST_DEC_XXM               31     /* XXM systype          */
#define ST_DEC_TAKARA            32     /* Takara systype       */
#define ST_DEC_YUKON             33     /* Yukon systype        */
#define ST_DEC_TSUNAMI           34     /* Tsunami systype      */
#define ST_DEC_WILDFIRE          35     /* Wildfire systype     */
#define ST_DEC_CUSCO             36     /* CUSCO systype        */
#define ST_DEC_EIGER             37     /* Eiger systype        */
#define ST_DEC_TITAN             38     /* Titan systype        */
#define ST_DEC_MARVEL            39     /* Marvel systype       */

/* UNOFFICIAL!!! */
#define ST_UNOFFICIAL_BIAS      100
#define ST_DTI_RUFFIAN          101     /* RUFFIAN systype      */

/* Alpha Processor, Inc. systems */
#define ST_API_BIAS             200
#define ST_API_NAUTILUS         201     /* UP1000 systype       */

struct pcb_struct {
        unsigned long ksp;
        unsigned long usp;
        unsigned long ptbr;
        unsigned int pcc;
        unsigned int asn;
        unsigned long unique;
        unsigned long flags;
        unsigned long res1, res2;
};

struct percpu_struct {
        unsigned long hwpcb[16];
        unsigned long flags;
        unsigned long pal_mem_size;
        unsigned long pal_scratch_size;
        unsigned long pal_mem_pa;
        unsigned long pal_scratch_pa;
        unsigned long pal_revision;
        unsigned long type;
        unsigned long variation;
        unsigned long revision;
        unsigned long serial_no[2];
        unsigned long logout_area_pa;
        unsigned long logout_area_len;
        unsigned long halt_PCBB;
        unsigned long halt_PC;
        unsigned long halt_PS;
        unsigned long halt_arg;
        unsigned long halt_ra;
        unsigned long halt_pv;
        unsigned long halt_reason;
        unsigned long res;
        unsigned long ipc_buffer[21];
        unsigned long palcode_avail[16];
        unsigned long compatibility;
        unsigned long console_data_log_pa;
        unsigned long console_data_log_length;
        unsigned long bcache_info;
};

struct procdesc_struct {
        unsigned long weird_vms_stuff;
        unsigned long address;
};

struct vf_map_struct {
        unsigned long va;
        unsigned long pa;
        unsigned long count;
};

struct crb_struct {
        struct procdesc_struct * dispatch_va;
        struct procdesc_struct * dispatch_pa;
        struct procdesc_struct * fixup_va;
        struct procdesc_struct * fixup_pa;
        /* virtual->physical map */
        unsigned long map_entries;
        unsigned long map_pages;
        struct vf_map_struct map[];
};

struct memclust_struct {
        unsigned long start_pfn;
        unsigned long numpages;
        unsigned long numtested;
        unsigned long bitmap_va;
        unsigned long bitmap_pa;
        unsigned long bitmap_chksum;
        unsigned long usage;
};

struct memdesc_struct {
        unsigned long chksum;
        unsigned long optional_pa;
        unsigned long numclusters;
        struct memclust_struct cluster[];
};

struct dsr_struct {
        long smm;                       /* SMM nubber used by LMF       */
        unsigned long  lurt_off;        /* offset to LURT table         */
        unsigned long  sysname_off;     /* offset to sysname char count */
};

struct hwrpb_struct {
        unsigned long phys_addr;        /* check: physical address of the hwrpb */
        unsigned long id;               /* check: "HWRPB\0\0\0" */
        unsigned long revision; 
        unsigned long size;             /* size of hwrpb */
        unsigned long cpuid;
        unsigned long pagesize;         /* 8192, I hope */
        unsigned long pa_bits;          /* number of physical address bits */
        unsigned long max_asn;
        unsigned char ssn[16];          /* system serial number: big bother is watching */
        unsigned long sys_type;
        unsigned long sys_variation;
        unsigned long sys_revision;
        unsigned long intr_freq;        /* interval clock frequency * 4096 */
        unsigned long cycle_freq;       /* cycle counter frequency */
        unsigned long vptb;             /* Virtual Page Table Base address */
        unsigned long res1;
        unsigned long tbhb_offset;      /* Translation Buffer Hint Block */
        unsigned long nr_processors;
        unsigned long processor_size;
        unsigned long processor_offset;
        unsigned long ctb_nr;
        unsigned long ctb_size;         /* console terminal block size */
        unsigned long ctbt_offset;      /* console terminal block table offset */
        unsigned long crb_offset;       /* console callback routine block */
        unsigned long mddt_offset;      /* memory data descriptor table */
        unsigned long cdb_offset;       /* configuration data block (or NULL) */
        unsigned long frut_offset;      /* FRU table (or NULL) */
        void (*save_terminal)(unsigned long);
        unsigned long save_terminal_data;
        void (*restore_terminal)(unsigned long);
        unsigned long restore_terminal_data;
        void (*CPU_restart)(unsigned long);
        unsigned long CPU_restart_data;
        unsigned long res2;
        unsigned long res3;
        unsigned long chksum;
        unsigned long rxrdy;
        unsigned long txrdy;
        unsigned long dsr_offset;       /* "Dynamic System Recognition Data Block Table" */
};

#ifdef __KERNEL__

extern struct hwrpb_struct *hwrpb;

static inline void
hwrpb_update_checksum(struct hwrpb_struct *h)
{
        unsigned long sum = 0, *l;
        for (l = (unsigned long *) h; l < (unsigned long *) &h->chksum; ++l)
                sum += *l;
        h->chksum = sum;
}

#endif /* __KERNEL__ */

#endif /* __ALPHA_HWRPB_H */