公开(公告)号：US09785559B2

公开(公告)日：2017-10-10

申请号：US14725882

申请日：2015-05-29

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Bohuslav Rychlik ,  Carlos Javier Moreira ,  Serag Monier GadelRab ,  Paul Christopher John Wiercienski ,  Alexander Miretsky ,  Kyle John Ernewein

IPC分类号： G06F12/12 ,  G06F12/0846 ,  G06F12/1036 ,  G06F12/109

摘要： Providing memory management unit (MMU) partitioned translation caches, and related apparatuses, methods, and computer-readable media. In this regard, an apparatus comprising an MMU is provided. The MMU comprises a translation cache providing a plurality of translation cache entries defining address translation mappings. The MMU further comprises a partition descriptor table providing a plurality of partition descriptors defining a corresponding plurality of partitions each comprising one or more translation cache entries of the plurality of translation cache entries. The MMU also comprises a partition translation circuit configured to receive a memory access request from a requestor. The partition translation circuit is further configured to determine a translation cache partition identifier (TCPID) of the memory access request, identify one or more partitions of the plurality of partitions based on the TCPID, and perform the memory access request on a translation cache entry of the one or more partitions.

公开(公告)号：US09824015B2

公开(公告)日：2017-11-21

申请号：US14725882

申请日：2015-05-29

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Bohuslav Rychlik ,  Carlos Javier Moreira ,  Serag Monier GadelRab ,  Paul Christopher John Wiercienski ,  Alexander Miretsky ,  Kyle John Ernewein

IPC分类号： G06F12/12 ,  G06F12/0846 ,  G06F12/1036 ,  G06F12/109

CPC分类号： G06F12/0848 ,  G06F12/1036 ,  G06F12/109 ,  G06F12/12 ,  G06F2212/1016 ,  G06F2212/1028 ,  G06F2212/282 ,  G06F2212/50 ,  G06F2212/601 ,  G06F2212/68 ,  G06F2212/70 ,  Y02D10/13

摘要： Providing memory management unit (MMU) partitioned translation caches, and related apparatuses, methods, and computer-readable media. In this regard, an apparatus comprising an MMU is provided. The MMU comprises a translation cache providing a plurality of translation cache entries defining address translation mappings. The MMU further comprises a partition descriptor table providing a plurality of partition descriptors defining a corresponding plurality of partitions each comprising one or more translation cache entries of the plurality of translation cache entries. The MMU also comprises a partition translation circuit configured to receive a memory access request from a requestor. The partition translation circuit is further configured to determine a translation cache partition identifier (TCPID) of the memory access request, identify one or more partitions of the plurality of partitions based on the TCPID, and perform the memory access request on a translation cache entry of the one or more partitions.

公开(公告)号：US20160350222A1

公开(公告)日：2016-12-01

申请号：US14725882

申请日：2015-05-29

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Bohuslav Rychlik ,  Carlos Javier Moreira ,  Serag Monier GadelRab ,  Paul Christopher John Wiercienski ,  Alexander Miretsky ,  Kyle John Ernewein

IPC分类号： G06F12/08

CPC分类号： G06F12/0848 ,  G06F12/1036 ,  G06F12/109 ,  G06F12/12 ,  G06F2212/1016 ,  G06F2212/1028 ,  G06F2212/282 ,  G06F2212/50 ,  G06F2212/601 ,  G06F2212/68 ,  G06F2212/70 ,  Y02D10/13

摘要： Providing memory management unit (MMU) partitioned translation caches, and related apparatuses, methods, and computer-readable media. In this regard, in one aspect, an apparatus comprising an MMU is provided. The MMU comprises a translation cache providing a plurality of translation cache entries defining address translation mappings. The MMU further comprises a partition descriptor table providing a plurality of partition descriptors defining a corresponding plurality of partitions each comprising one or more translation cache entries of the plurality of translation cache entries. The MMU also comprises a partition translation circuit configured to receive a memory access request from a requestor. The partition translation circuit is further configured to determine a translation cache partition identifier (TCPID) of the memory access request, identify one or more partitions of the plurality of partitions based on the TCPID, and perform the memory access request on a translation cache entry of the one or more partitions.

摘要翻译： 提供存储器管理单元（MMU）分区转换高速缓存以及相关设备，方法和计算机可读介质。 在这方面，在一方面，提供了包括MMU的装置。 MMU包括提供定义地址转换映射的多个转换高速缓存条目的翻译高速缓存。 所述MMU还包括分区描述符表，其提供多个分区描述符，所述分区描述符定义相应的多个分区，每个分区包括所述多个转换高速缓存条目中的一个或多个转换高速缓存条目。 MMU还包括被配置为从请求者接收存储器访问请求的分区转换电路。 分区翻译电路还被配置为确定存储器访问请求的翻译高速缓存分区标识符（TCPID），基于TCPID识别多个分区中的一个或多个分区，并且在翻译高速缓存条目上执行存储器访问请求 一个或多个分区。

公开(公告)号：US09792215B2

公开(公告)日：2017-10-17

申请号：US14672133

申请日：2015-03-28

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Bohuslav Rychlik ,  Paul Christopher John Wiercienski ,  Kyle John Ernewein ,  Carlos Javier Moreira ,  Meghal Varia ,  Serag Gadelrab

IPC分类号： G06F12/12 ,  G06F12/0862 ,  G06F12/0875 ,  G06F12/10 ,  G06F12/1027

CPC分类号： G06F12/0862 ,  G06F12/0875 ,  G06F12/10 ,  G06F12/1027 ,  G06F2212/1021 ,  G06F2212/452 ,  G06F2212/602 ,  G06F2212/6028 ,  G06F2212/654 ,  G06F2212/684

摘要： Methods and systems for pre-fetching address translations in a memory management unit (MMU) of a device are disclosed. In an embodiment, the MMU receives a pre-fetch command from an upstream component of the device, the pre-fetch command including an address of an instruction, pre-fetches a translation of the instruction from a translation table in a memory of the device, and stores the translation of the instruction in a translation cache associated with the MMU.

公开(公告)号：US09747213B2

公开(公告)日：2017-08-29

申请号：US14725882

申请日：2015-05-29

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Bohuslav Rychlik ,  Carlos Javier Moreira ,  Serag Monier GadelRab ,  Paul Christopher John Wiercienski ,  Alexander Miretsky ,  Kyle John Ernewein

IPC分类号： G06F12/12 ,  G06F12/0846 ,  G06F12/1036 ,  G06F12/109

摘要： Providing memory management unit (MMU) partitioned translation caches, and related apparatuses, methods, and computer-readable media. In this regard, an apparatus comprising an MMU is provided. The MMU comprises a translation cache providing a plurality of translation cache entries defining address translation mappings. The MMU further comprises a partition descriptor table providing a plurality of partition descriptors defining a corresponding plurality of partitions each comprising one or more translation cache entries of the plurality of translation cache entries. The MMU also comprises a partition translation circuit configured to receive a memory access request from a requestor. The partition translation circuit is further configured to determine a translation cache partition identifier (TCPID) of the memory access request, identify one or more partitions of the plurality of partitions based on the TCPID, and perform the memory access request on a translation cache entry of the one or more partitions.

公开(公告)号：US10685630B2

公开(公告)日：2020-06-16

申请号：US16004327

申请日：2018-06-08

申请人： QUALCOMM Incorporated

发明人： Carlos Javier Moreira ,  Paul Chow ,  Dhaval Kanubhai Patel

IPC分类号： G09G5/36 ,  G09G5/397

摘要： According to various aspects, just-in-time system bandwidth changes may be implemented in hardware to optimize power consumption and performance in an electronic device. More particularly, in a periodic system associated with an electronic device, a bandwidth for a next frame may be configured during a current frame via software operating on the electronic device. Hardware associated with the periodic system may issue a bandwidth change request for the next frame when a current time reaches a bandwidth increase threshold in response to actual processing time associated with the current frame finishing prior to the bandwidth increase threshold, which may be defined relative to a timer deadline that defines when the next frame starts to process.

公开(公告)号：US10007619B2

公开(公告)日：2018-06-26

申请号：US14859351

申请日：2015-09-20

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Paul Christopher John Wiercienski ,  Carlos Javier Moreira ,  Alexander Miretsky ,  Meghal Varia ,  Kyle John Ernewein ,  Manokanthan Somasundaram ,  Muhammad Umar Choudry ,  Serag Monier Gadelrab

IPC分类号： G06F12/10 ,  G06F12/08 ,  G06F12/1045 ,  G06F12/0891 ,  G06F12/0844 ,  G06F12/1036 ,  G06F12/0806 ,  G06F12/0842 ,  G06F12/1009

CPC分类号： G06F12/1063 ,  G06F12/0806 ,  G06F12/0842 ,  G06F12/0844 ,  G06F12/0891 ,  G06F12/1009 ,  G06F12/1036 ,  G06F2212/1024 ,  G06F2212/50 ,  G06F2212/655 ,  G06F2212/682 ,  G06F2212/683 ,  G06F2212/684

摘要： Systems and methods relate to performing address translations in a multithreaded memory management unit (MMU). Two or more address translation requests can be received by the multithreaded MMU and processed in parallel to retrieve address translations to addresses of a system memory. If the address translations are present in a translation cache of the multithreaded MMU, the address translations can be received from the translation cache and scheduled for access of the system memory using the translated addresses. If there is a miss in the translation cache, two or more address translation requests can be scheduled in two or more translation table walks in parallel.

公开(公告)号：US10037280B2

公开(公告)日：2018-07-31

申请号：US14726454

申请日：2015-05-29

申请人： QUALCOMM Incorporated

发明人： Jason Edward Podaima ,  Paul Christopher John Wiercienski ,  Kyle John Ernewein ,  Carlos Javier Moreira ,  Meghal Varia ,  Serag Gadelrab ,  Muhammad Umar Choudry

IPC分类号： G06F12/08 ,  G06F12/10 ,  G06F12/0862 ,  G06F12/109

CPC分类号： G06F12/0862 ,  G06F12/10 ,  G06F12/109 ,  G06F2212/1021 ,  G06F2212/283 ,  G06F2212/312 ,  G06F2212/507 ,  G06F2212/6026 ,  G06F2212/608 ,  G06F2212/65 ,  G06F2212/654

摘要： Systems and methods for pre-fetching address translations in a memory management unit (MMU) are disclosed. The MMU detects a triggering condition related to one or more translation caches associated with the MMU, the triggering condition associated with a trigger address, generates a sequence descriptor describing a sequence of address translations to pre-fetch into the one or more translation caches, the sequence of address translations comprising a plurality of address translations corresponding to a plurality of address ranges adjacent to an address range containing the trigger address, and issues an address translation request to the one or more translation caches for each of the plurality of address translations, wherein the one or more translation caches pre-fetch at least one address translation of the plurality of address translations into the one or more translation caches when the at least one address translation is not present in the one or more translation caches.

公开(公告)号：US10019380B2

公开(公告)日：2018-07-10

申请号：US14866228

申请日：2015-09-25

申请人： QUALCOMM Incorporated

发明人： Serag Monier GadelRab ,  Jason Edward Podaima ,  Ruolong Liu ,  Alexander Miretsky ,  Paul Christopher John Wiercienski ,  Kyle John Ernewein ,  Carlos Javier Moreira ,  Simon Peter William Booth ,  Meghal Varia ,  Thomas David Dryburgh

IPC分类号： G06F12/00 ,  G06F12/1072 ,  G06F13/00 ,  G06F13/28

CPC分类号： G06F12/1072 ,  G06F2212/1008 ,  G06F2212/1016

摘要： Providing memory management functionality using aggregated memory management units (MMUs), and related apparatuses and methods are disclosed. In one aspect, an aggregated MMU is provided, comprising a plurality of input data paths including each including plurality of input transaction buffers, and a plurality of output paths each including a plurality of output transaction buffers. Some aspects of the aggregated MMU additionally provide one or more translation caches and/or one or more hardware page table walkers The aggregated MMU further includes an MMU management circuit configured to retrieve a memory address translation request (MATR) from an input transaction buffer, perform a memory address translation operation based on the MATR to generate a translated memory address field (TMAF), and provide the TMAF to an output transaction buffer. The aggregated MMU also provides a plurality of output data paths, each configured to output transactions with resulting memory address translations.

公开(公告)号：US20170091116A1

公开(公告)日：2017-03-30

申请号：US14866228

申请日：2015-09-25

申请人： QUALCOMM Incorporated

发明人： Serag Monier GadelRab ,  Jason Edward Podaima ,  Ruolong Liu ,  Alexander Miretsky ,  Paul Christopher John Wiercienski ,  Kyle John Ernewein ,  Carlos Javier Moreira ,  Simon Peter William Booth ,  Meghal Varia ,  Thomas David Dryburgh

IPC分类号： G06F12/10

CPC分类号： G06F12/1072 ,  G06F2212/1008 ,  G06F2212/1016

摘要： Providing memory management functionality using aggregated memory management units (MMUs), and related apparatuses and methods are disclosed. In one aspect, an aggregated MMU is provided, comprising a plurality of input data paths including each including plurality of input transaction buffers, and a plurality of output paths each including a plurality of output transaction buffers. Some aspects of the aggregated MMU additionally provide one or more translation caches and/or one or more hardware page table walkers The aggregated MMU further includes an MMU management circuit configured to retrieve a memory address translation request (MATR) from an input transaction buffer, perform a memory address translation operation based on the MATR to generate a translated memory address field (TMAF), and provide the TMAF to an output transaction buffer. The aggregated MMU also provides a plurality of output data paths, each configured to output transactions with resulting memory address translations.