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| 3675 | svoboda | 1 | /* |
| 2 | * Copyright (c) 2008 Pavel Rimsky |
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| 3 | * All rights reserved. |
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| 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 | |||
| 29 | /** @addtogroup sparc64 |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #ifndef KERN_sparc64_CPU_FAMILY_H_ |
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| 36 | #define KERN_sparc64_CPU_FAMILY_H_ |
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| 37 | |||
| 38 | #include <arch.h> |
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| 39 | #include <cpu.h> |
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| 40 | #include <arch/register.h> |
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| 41 | #include <arch/asm.h> |
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| 42 | |||
| 43 | /** |
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| 44 | * Find the processor (sub)family. |
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| 45 | * |
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| 46 | * @return true iff the CPU belongs to the US family |
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| 47 | */ |
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| 48 | static inline bool is_us(void) |
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| 49 | { |
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| 50 | int impl = ((ver_reg_t) ver_read()).impl; |
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| 51 | return (impl == IMPL_ULTRASPARCI) || (impl == IMPL_ULTRASPARCII) || |
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| 52 | (impl == IMPL_ULTRASPARCII_I) || (impl == IMPL_ULTRASPARCII_E); |
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| 53 | } |
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| 54 | |||
| 55 | /** |
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| 56 | * Find the processor (sub)family. |
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| 57 | * |
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| 58 | * @return true iff the CPU belongs to the US-III subfamily |
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| 59 | */ |
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| 60 | static inline bool is_us_iii(void) |
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| 61 | { |
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| 62 | int impl = ((ver_reg_t) ver_read()).impl; |
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| 63 | return (impl == IMPL_ULTRASPARCIII) || |
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| 64 | (impl == IMPL_ULTRASPARCIII_PLUS) || |
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| 65 | (impl == IMPL_ULTRASPARCIII_I); |
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| 66 | } |
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| 67 | |||
| 68 | /** |
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| 69 | * Find the processor (sub)family. |
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| 70 | * |
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| 71 | * @return true iff the CPU belongs to the US-IV subfamily |
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| 72 | */ |
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| 73 | static inline bool is_us_iv(void) |
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| 74 | { |
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| 75 | int impl = ((ver_reg_t) ver_read()).impl; |
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| 76 | return (impl == IMPL_ULTRASPARCIV) || (impl == IMPL_ULTRASPARCIV_PLUS); |
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| 77 | } |
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| 78 | |||
| 79 | #endif |
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| 80 | |||
| 81 | /** @} |
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| 82 | */ |