| 1 | /* |
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| 2 | * kern/hal-arch.h - Architecture related Hardware Abstraction Layer |
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| 3 | * |
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| 4 | * Copyright (c) 2008,2009,2010,2011,2012 Ghassan Almaless |
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| 5 | * Copyright (c) 2011,2012 UPMC Sorbonne Universites |
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| 6 | * |
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| 7 | * This file is part of ALMOS-kernel. |
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| 8 | * |
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| 9 | * ALMOS-kernel is free software; you can redistribute it and/or modify it |
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| 10 | * under the terms of the GNU General Public License as published by |
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| 11 | * the Free Software Foundation; version 2.0 of the License. |
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| 12 | * |
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| 13 | * ALMOS-kernel is distributed in the hope that it will be useful, but |
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| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
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| 20 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |
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| 23 | #ifndef _HAL_ARCH_H_ |
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| 24 | #define _HAL_ARCH_H_ |
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| 25 | |
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| 26 | #ifndef _SYSTEM_H_ |
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| 27 | #error hal-arch.h cannot be included directly, use system.h instead |
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| 28 | #endif |
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| 29 | |
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| 30 | #include <types.h> |
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| 31 | |
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| 32 | /** Used atructures */ |
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| 33 | struct cpu_s; |
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| 34 | struct cluster_s; |
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| 35 | struct irq_action_s; |
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| 36 | struct event_s; |
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| 37 | struct boot_info_s; |
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| 38 | struct dqdt_cluster_s; |
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| 39 | struct dqdt_attr_s; |
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| 40 | |
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| 41 | /** Provided structures, functions and macros */ |
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| 42 | #define ARCH_THREAD_PAGE_ORDER |
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| 43 | struct arch_cpu_s; |
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| 44 | struct arch_cluster_s; |
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| 45 | |
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| 46 | /* CPUs/CLUSTERs Numbers */ |
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| 47 | #define CLUSTER_NR |
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| 48 | #define CPU_PER_CLUSTER_NR |
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| 49 | uint_t arch_onln_cpu_nr(void); |
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| 50 | uint_t arch_onln_cluster_nr(void); |
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| 51 | uint_t arch_cpu_per_cluster(void); |
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| 52 | cid_t arch_boot_cid(void); |
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| 53 | |
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| 54 | static inline uint_t arch_cpu_gid(uint_t cid, uint_t lid); |
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| 55 | static inline uint_t arch_cpu_lid(uint_t cpu_gid); |
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| 56 | static inline uint_t arch_cpu_cid(uint_t cpu_gid); |
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| 57 | |
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| 58 | /* Architecture Initialization */ |
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| 59 | void arch_init(struct boot_info_s *info); |
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| 60 | void arch_memory_init(struct boot_info_s *info); |
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| 61 | error_t arch_dqdt_build(struct boot_info_s *info); |
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| 62 | |
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| 63 | /* Real time, Real clock timers */ |
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| 64 | #define CPU_CLOCK_TICK |
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| 65 | #define MSEC_PER_TICK |
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| 66 | #define CYCLES_PER_SECOND |
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| 67 | |
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| 68 | /* Architecture context */ |
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| 69 | error_t arch_cpu_init(struct cpu_s *cpu); |
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| 70 | |
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| 71 | /* IRQs, IPIs and others */ |
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| 72 | error_t arch_cpu_set_irq_entry(struct cpu_s *cpu, int irq_nr, struct irq_action_s *action); |
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| 73 | error_t arch_cpu_get_irq_entry(struct cpu_s *cpu, int irq_nr, struct irq_action_s **action); |
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| 74 | error_t arch_cpu_send_ipi(gid_t dest, uint32_t val); |
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| 75 | |
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| 76 | /* Specific architecture-dependent DQDT macros & functions */ |
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| 77 | #define DQDT_DIST_NOTSET 0 /* must be zero (c.f: see dqdt_attr_init in kern/dqdt.h) */ |
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| 78 | #define DQDT_DIST_DEFAULT 1 |
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| 79 | #define DQDT_DIST_RANDOM 2 |
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| 80 | |
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| 81 | uint_t arch_dqdt_distance(struct dqdt_cluster_s *c1, struct dqdt_cluster_s *c2, struct dqdt_attr_s *attr); |
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| 82 | |
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| 83 | /* Specific architecture depanding CPU operations */ |
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| 84 | typedef enum |
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| 85 | { |
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| 86 | ARCH_PWR_IDLE, |
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| 87 | ARCH_PWR_SLEEP, |
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| 88 | ARCH_PWR_SHUTDOWN |
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| 89 | } arch_power_state_t; |
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| 90 | |
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| 91 | error_t arch_set_power_state(struct cpu_s *cpu, arch_power_state_t state); |
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| 92 | |
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| 93 | /* Specific architecture depanding CLUSTER operations */ |
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| 94 | |
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| 95 | |
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| 96 | /* Specific architecture implementation */ |
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| 97 | |
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| 98 | #define ARCH_HAS_BARRIERS |
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| 99 | |
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| 100 | sint_t arch_barrier_init(struct cluster_s *cluster, struct event_s *event, uint_t count); |
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| 101 | sint_t arch_barrier_wait(struct cluster_s *cluster, uint_t barrier_id); |
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| 102 | error_t arch_barrier_destroy(struct cluster_s *cluster, uint_t barrier_id); |
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| 103 | |
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| 104 | |
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| 105 | #include <arch.h> |
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| 106 | |
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| 107 | #endif /* _HAL_CPU_H_ */ |
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