Pryor, Adam
47692d3ed5
* [SWDEV-498711] RDC Partition Implementation Change-Id: Ibfc3709793770537e4c9d36458f34c6b4f461724 Signed-off-by: adapryor <Adam.pryor@amd.com>
55 líneas
2.4 KiB
C
55 líneas
2.4 KiB
C
/*
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Copyright (c) 2025 - present Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef INCLUDE_RDC_LIB_RDCENTITYCODEC_H_
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#define INCLUDE_RDC_LIB_RDCENTITYCODEC_H_
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#include "rdc/rdc.h"
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/*
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*
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* See rdc.h for description of entity_index
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* Shifts and masks help get only the bits in question to decode/encode
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*
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* Ex, RDC_ENTITY_TYPE_SHIFT = 29 helps shift the 29 irrelevant bits, so we're
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* only left with the top 3 type bits.
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* Then, the corresponding 3 type bits are anded with the RDC_ENTITY_TYPE_MASK = 0x7
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* which = 111 in binary, "copying" the type bits.
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*
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*
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*/
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static constexpr uint32_t RDC_ENTITY_TYPE_SHIFT = 29;
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static constexpr uint32_t RDC_ENTITY_ROLE_SHIFT = 27;
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static constexpr uint32_t RDC_ENTITY_INSTANCE_SHIFT = 11;
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static constexpr uint32_t RDC_ENTITY_DEVICE_SHIFT = 0;
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static constexpr uint32_t RDC_ENTITY_TYPE_MASK = 0x7; // 3 bits for type.
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static constexpr uint32_t RDC_ENTITY_ROLE_MASK = 0x3; // 2 bits for role.
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static constexpr uint32_t RDC_ENTITY_INSTANCE_MASK = 0x3FF; // 10 bits for instance.
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static constexpr uint32_t RDC_ENTITY_DEVICE_MASK = 0x3FF; // 10 bits for device.
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rdc_entity_info_t rdc_get_info_from_entity_index(uint32_t entity_index);
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uint32_t rdc_get_entity_index_from_info(rdc_entity_info_t info);
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bool rdc_is_partition_string(const char* s);
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bool rdc_parse_partition_string(const char* s, uint32_t* physicalGpu, uint32_t* partition);
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#endif // INCLUDE_RDC_LIB_RDCENTITYCODEC_H_
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