/*
* Copyright (c) 2005 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup kernel_sparc64
* @{
*/
/** @file
*/
#ifndef KERN_sparc64_sun4v_CPU_H_
#define KERN_sparc64_sun4v_CPU_H_
/** Maximum number of virtual processors. */
#define MAX_NUM_STRANDS 64
/** Maximum number of logical processors in a processor core */
#define MAX_CORE_STRANDS 8
#ifndef __ASSEMBLER__
#include <atomic.h>
#include <synch/spinlock.h>
struct cpu;
typedef struct {
uint64_t exec_unit_id;
uint8_t strand_count;
uint64_t cpuids[MAX_CORE_STRANDS];
struct cpu *cpus[MAX_CORE_STRANDS];
atomic_size_t nrdy;
SPINLOCK_DECLARE(proposed_nrdy_lock);
} exec_unit_t;
typedef struct cpu_arch {
/** Virtual processor ID */
uint64_t id;
/** Processor frequency in Hz */
uint32_t clock_frequency;
/** Next clock interrupt should be generated when the TICK register
* matches this value.
*/
uint64_t next_tick_cmpr;
/** Physical core. */
exec_unit_t *exec_unit;
/** Proposed No. of ready threads so that cores are equally balanced. */
unsigned long proposed_nrdy;
} cpu_arch_t;
#endif
#endif
/** @}
*/