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| Rev | Author | Line No. | Line |
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| 35 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
| 35 | jermar | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1731 | jermar | 29 | /** @addtogroup ia64 |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1888 | jermar | 35 | #ifndef KERN_ia64_CPU_H_ |
| 36 | #define KERN_ia64_CPU_H_ |
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| 35 | jermar | 37 | |
| 476 | jermar | 38 | #include <arch/types.h> |
| 39 | #include <arch/register.h> |
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| 2089 | decky | 40 | #include <arch/asm.h> |
| 3597 | svoboda | 41 | #include <arch/bootinfo.h> |
| 35 | jermar | 42 | |
| 476 | jermar | 43 | #define FAMILY_ITANIUM 0x7 |
| 44 | #define FAMILY_ITANIUM2 0x1f |
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| 45 | |||
| 2079 | decky | 46 | typedef struct { |
| 1780 | jermar | 47 | uint64_t cpuid0; |
| 48 | uint64_t cpuid1; |
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| 476 | jermar | 49 | cpuid3_t cpuid3; |
| 2079 | decky | 50 | } cpu_arch_t; |
| 476 | jermar | 51 | |
| 52 | /** Read CPUID register. |
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| 53 | * |
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| 54 | * @param n CPUID register number. |
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| 55 | * |
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| 56 | * @return Value of CPUID[n] register. |
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| 57 | */ |
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| 1780 | jermar | 58 | static inline uint64_t cpuid_read(int n) |
| 476 | jermar | 59 | { |
| 1780 | jermar | 60 | uint64_t v; |
| 35 | jermar | 61 | |
| 2082 | decky | 62 | asm volatile ("mov %0 = cpuid[%1]\n" : "=r" (v) : "r" (n)); |
| 476 | jermar | 63 | |
| 64 | return v; |
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| 65 | } |
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| 66 | |||
| 3597 | svoboda | 67 | |
| 68 | #define CR64_ID_SHIFT 24 |
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| 69 | #define CR64_ID_MASK 0xff000000 |
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| 70 | #define CR64_EID_SHIFT 16 |
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| 71 | #define CR64_EID_MASK 0xff0000 |
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| 72 | |||
| 73 | static inline int ia64_get_cpu_id(void) |
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| 74 | { |
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| 75 | uint64_t cr64=cr64_read(); |
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| 76 | return ((CR64_ID_MASK)&cr64)>>CR64_ID_SHIFT; |
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| 77 | } |
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| 78 | |||
| 79 | static inline int ia64_get_cpu_eid(void) |
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| 80 | { |
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| 81 | uint64_t cr64=cr64_read(); |
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| 82 | return ((CR64_EID_MASK)&cr64)>>CR64_EID_SHIFT; |
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| 83 | } |
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| 84 | |||
| 85 | |||
| 4377 | svoboda | 86 | static inline void ipi_send_ipi(int id, int eid, int intno) |
| 3597 | svoboda | 87 | { |
| 4377 | svoboda | 88 | (bootinfo->sapic)[2 * (id * 256 + eid)] = intno; |
| 3675 | svoboda | 89 | srlz_d(); |
| 90 | |||
| 3597 | svoboda | 91 | } |
| 92 | |||
| 35 | jermar | 93 | #endif |
| 1702 | cejka | 94 | |
| 1731 | jermar | 95 | /** @} |
| 1702 | cejka | 96 | */ |