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  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup sparc64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_sparc64_sun4v_CPU_H_
  36. #define KERN_sparc64_sun4v_CPU_H_
  37.  
  38. /** Maximum number of virtual processors. */
  39. #define MAX_NUM_STRANDS     64
  40.  
  41. /** Maximum number of logical processors in a processor core */
  42. #define MAX_CORE_STRANDS    8
  43.  
  44. #ifndef __ASM__
  45.  
  46. struct cpu;
  47.  
  48. typedef struct {
  49.     uint64_t exec_unit_id;
  50.     uint8_t strand_count;
  51.     uint64_t cpuids[MAX_CORE_STRANDS];
  52.     struct cpu *cpus[MAX_CORE_STRANDS];
  53.     atomic_t nrdy;
  54.     SPINLOCK_DECLARE(proposed_nrdy_lock);
  55. } exec_unit_t;
  56.  
  57. typedef struct cpu_arch {
  58.     uint64_t id;            /**< virtual processor ID */
  59.     uint32_t clock_frequency;   /**< Processor frequency in Hz. */
  60.     uint64_t next_tick_cmpr;    /**< Next clock interrupt should be
  61.                          generated when the TICK register
  62.                          matches this value. */
  63.     exec_unit_t *exec_unit;     /**< Physical core. */
  64.     unsigned long proposed_nrdy;    /**< Proposed No. of ready threads
  65.                          so that cores are equally balanced. */
  66. } cpu_arch_t;
  67.  
  68. #endif 
  69.  
  70. #ifdef __ASM__
  71.  
  72. #endif
  73.  
  74. #endif
  75.  
  76. /** @}
  77.  */
  78.