xref: /freebsd-10-stable/sys/contrib/octeon-sdk/cvmx-hfa.h

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/**
 * @file
 *
 * Interface to the CN63XX, CN68XX hardware HFA engine.
 *
 * <hr>$Revision: 49448 $<hr>
 */

#ifndef __CVMX_HFA_H__
#define __CVMX_HFA_H__

#ifndef CVMX_BUILD_FOR_LINUX_USER
#include "cvmx-llm.h"
#include "cvmx-wqe.h"
#include "cvmx-fpa.h"
#include "cvmx-bootmem.h"

#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include <asm/octeon/cvmx.h>
#include <asm/octeon/cvmx-config.h>

#ifdef CVMX_ENABLE_DFA_FUNCTIONS
/* DFA queue cmd buffers */

#define CVMX_FPA_DFA_POOL                   (4)             /**< DFA command buffers */
#define CVMX_FPA_DFA_POOL_SIZE              (2 * CVMX_CACHE_LINE_SIZE)
#endif

#else
#include "executive-config.h"
#ifdef CVMX_ENABLE_DFA_FUNCTIONS
#include "cvmx-config.h"
#endif
#endif
#endif

#define ENABLE_DEPRECATED   /* Set to enable the old 18/36 bit names */

#ifdef	__cplusplus
extern "C" {
#endif

#define	CVMX_DFA_ITYPE_MEMLOAD		0x0
#define	CVMX_DFA_ITYPE_CACHELOAD	0x1
#define	CVMX_DFA_ITYPE_GRAPHFREE	0x3
#define	CVMX_DFA_ITYPE_GRAPHWALK	0x4

typedef union {
   uint64_t u64;
   struct {
#ifdef __BIG_ENDIAN_BITFIELD
      uint64_t size:24;
      uint64_t addr:40;
#else
      uint64_t addr:40;
      uint64_t size:24;
#endif
   } s;
} cvmx_dfa_gather_entry_t;

typedef union {
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t f1:3;
        uint64_t unused1:2;
        uint64_t snode:27;
        uint64_t gather_mode:1;
        uint64_t little_endian:1;
        uint64_t store_full:1;
        uint64_t load_through:1;
        uint64_t small:1;
        uint64_t itype:3;
        uint64_t unused0:2;
        uint64_t mbase:22;
#else
        uint64_t mbase:22;
        uint64_t unused0:2;
        uint64_t itype:3;
        uint64_t small:1;
        uint64_t load_through:1;
        uint64_t store_full:1;
        uint64_t little_endian:1;
        uint64_t gather_mode:1;
        uint64_t snode:27;
        uint64_t unused1:2;
        uint64_t f1:3;
#endif
    } walk;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused4:7;
        uint64_t dbase:9;
        uint64_t unused3:2;
        uint64_t cbase:14;
        uint64_t gather_mode:1;
        uint64_t little_endian:1;
        uint64_t store_full:1;
        uint64_t load_through:1;
        uint64_t unused2:1;
        uint64_t itype:3;
        uint64_t unused1:6;
        uint64_t dsize:10;
        uint64_t unused0:2;
        uint64_t pgid:6;
#else
        uint64_t pgid:6;
        uint64_t unused0:2;
        uint64_t dsize:10;
        uint64_t unused1:6;
        uint64_t itype:3;
        uint64_t unused2:1;
        uint64_t load_through:1;
        uint64_t store_full:1;
        uint64_t little_endian:1;
        uint64_t gather_mode:1;
        uint64_t cbase:14;
        uint64_t unused3:2;
        uint64_t dbase:9;
        uint64_t unused4:7;
#endif
    } cload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused2:32;
        uint64_t gather_mode:1;
        uint64_t little_endian:1;
        uint64_t store_full:1;
        uint64_t load_through:1;
        uint64_t unused1:1;
        uint64_t itype:3;
        uint64_t unused0:2;
        uint64_t mbase:22;
#else
        uint64_t mbase:22;
        uint64_t unused0:2;
        uint64_t itype:3;
        uint64_t unused1:1;
        uint64_t load_through:1;
        uint64_t store_full:1;
        uint64_t little_endian:1;
        uint64_t gather_mode:1;
        uint64_t unused2:32;
#endif
    } mload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused2:34;
        uint64_t store_full:1;
        uint64_t unused1:2;
        uint64_t itype:3;
        uint64_t unused0:24;
#else
        uint64_t unused0:24;
        uint64_t itype:3;
        uint64_t unused1:2;
        uint64_t store_full:1;
        uint64_t unused2:34;
#endif
    } free;
} cvmx_dfa_word0_t;

typedef union {
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t rmax:16;
        uint64_t f2:8;
        uint64_t rptr:40;
#else
        uint64_t rptr:40;
        uint64_t f2:8;
        uint64_t rmax:16;
#endif
    } walk;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:13;
        uint64_t rmax:3;
        uint64_t unused0:8;
        uint64_t rptr:40;
#else
        uint64_t rptr:40;
        uint64_t unused0:8;
        uint64_t rmax:3;
        uint64_t unused1:13;
#endif
    } cload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:4;
        uint64_t rmax:12;
        uint64_t unused0:8;
        uint64_t rptr:40;
#else
        uint64_t rptr:40;
        uint64_t unused0:8;
        uint64_t rmax:12;
        uint64_t unused1:4;
#endif
    } mload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused:24;
        uint64_t rptr:40;
#else
        uint64_t rptr:40;
        uint64_t unused:24;
#endif
    } free;
} cvmx_dfa_word1_t;

typedef union {
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t dlen:16;
		uint64_t srepl:2;
        uint64_t unused:2;
        uint64_t clmsk:4;
        uint64_t dptr:40;
#else
        uint64_t dptr:40;
        uint64_t clmsk:4;
        uint64_t unused:2;
		uint64_t srepl:2;
        uint64_t dlen:16;
#endif
    } walk;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t dlen:16;
        uint64_t unused:4;
        uint64_t clmsk:4;
        uint64_t dptr:40;
#else
        uint64_t dptr:40;
        uint64_t clmsk:4;
        uint64_t unused:4;
        uint64_t dlen:16;
#endif
    } cload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t dlen:16;
        uint64_t repl:2;
        uint64_t unused:2;
        uint64_t clmsk:4;
        uint64_t dptr:40;
#else
        uint64_t dptr:40;
        uint64_t clmsk:4;
        uint64_t unused:2;
        uint64_t repl:2;
        uint64_t dlen:16;
#endif
    } mload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:20;
        uint64_t clmsk:4;
        uint64_t unused0:40;
#else
        uint64_t unused0:40;
        uint64_t clmsk:4;
        uint64_t unused1:20;
#endif
    } free;
} cvmx_dfa_word2_t;

typedef union {
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:2;
        uint64_t vgid:8;
        uint64_t unused0:5;
        uint64_t f3:9;
        uint64_t wqptr:40;
#else
        uint64_t wqptr:40;
        uint64_t f3:9;
        uint64_t unused0:5;
        uint64_t vgid:8;
        uint64_t unused1:2;
#endif
    } walk;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:2;
        uint64_t vgid:8;
        uint64_t unused0:7;
        uint64_t f4:7;
        uint64_t wqptr:40;
#else
        uint64_t wqptr:40;
        uint64_t f4:7;
        uint64_t unused0:7;
        uint64_t vgid:8;
        uint64_t unused1:2;
#endif
    } cload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:2;
        uint64_t vgid:8;
        uint64_t unused0:7;
        uint64_t f4:7;
        uint64_t wqptr:40;
#else
        uint64_t wqptr:40;
        uint64_t f4:7;
        uint64_t unused0:7;
        uint64_t vgid:8;
        uint64_t unused1:2;
#endif
    } mload;
    struct {
#ifdef __BIG_ENDIAN_BITFIELD
        uint64_t unused1:2;
        uint64_t vgid:8;
        uint64_t unused0:14;
        uint64_t wqptr:40;
#else
        uint64_t wqptr:40;
        uint64_t unused0:14;
        uint64_t vgid:8;
        uint64_t unused1:2;
#endif
    } free;
} cvmx_dfa_word3_t;

typedef union {
    uint64_t u64[4];
    struct {
        cvmx_dfa_word0_t word0;
        cvmx_dfa_word1_t word1;
        cvmx_dfa_word2_t word2;
        cvmx_dfa_word3_t word3;
    };
} cvmx_dfa_command_t;

#ifdef CVMX_ENABLE_DFA_FUNCTIONS
/**
 * Initialize the DFA hardware before use
 * Returns 0 on success, -1 on failure
 */
int cvmx_hfa_initialize(void);


/**
 * Shutdown and cleanup resources used by the DFA
 */
int cvmx_hfa_shutdown(void);

/**
 * Submit a command to the HFA block
 *
 * @param command HFA command to submit
 *
 * @return Zero on success, negative on failure
 */
int cvmx_hfa_submit(cvmx_dfa_command_t *command);

/**
 * Allocate a block of memory from the free list that was passed
 * to the application by the bootloader.
 *
 * @param size      Size in bytes of block to allocate
 * @param alignment Alignment required - must be power of 2
 *
 *  @return pointer to block of memory, NULL on error
 */

void *hfa_bootmem_alloc (uint64_t size, uint64_t alignment);

/**
 * Frees a block to the bootmem allocator list.
 *
 * @param ptr  	   address of block  (memory pointer (void*))
 * @param size     size of block in bytes.
 *
 * @return 1 on success,
 *         0 on failure
 *
 */

int  hfa_bootmem_free (void *ptr, uint64_t size);

#endif

#ifdef	__cplusplus
}
#endif

#endif /* __CVMX_HFA_H__ */