公开(公告)号：US09612970B2

公开(公告)日：2017-04-04

申请号：US14333981

申请日：2014-07-17

Applicant: QUALCOMM Incorporated

Inventor： Subbarao Palacharla ,  Moinul Khan ,  Alain Artieri ,  Kedar Bhole ,  Vinod Chamarty ,  Pankaj Chaurasia ,  Raghu Sankuratri

IPC: G06F12/00 ,  G06F12/0893 ,  G06F12/084 ,  G06F12/12 ,  G06F12/10 ,  G06F12/0895

CPC classification number: G06F12/0893 ,  G06F12/084 ,  G06F12/0895 ,  G06F12/10 ,  G06F12/12 ,  G06F2212/1021 ,  G06F2212/1044 ,  G06F2212/152 ,  G06F2212/601 ,  G06F2212/6046 ,  Y02D10/13

Abstract: Aspects include computing devices, systems, and methods for partitioning a system cache by sets and ways into component caches. A system cache memory controller may manage the component caches and manage access to the component caches. The system cache memory controller may receive system cache access requests specifying component cache identifiers, and match the component cache identifiers with records correlating traits of the component cache identifiers with in a component cache configuration table. The component cache traits may include a set shift trait, set offset trait, and target ways, which may define the locations of the component caches in the system cache. The system cache memory controller may also receive a physical address for the system cache in the system cache access request, determine an indexing mode for the component cache, and translate the physical address for the component cache.

公开(公告)号：US20240428368A1

公开(公告)日：2024-12-26

申请号：US18338272

申请日：2023-06-20

Applicant: QUALCOMM Incorporated

Inventor： Vinay Thomas ,  David Berrebi ,  Victor Pinto ,  George Patsilaras ,  Roee Hardoon ,  Shruti Krishnamurthy ,  Weiliang Liu ,  Lingfeng Li ,  Alain Artieri ,  Abhilash Shivashankara Pillai

IPC: G06T1/60 ,  G06F12/0891

Abstract: This disclosure provides systems, methods, and devices for image signal processing that support efficient cache usage in an image processing system. In a first aspect, a method of image processing includes storing, by an image processor, a first portion of a first stripe of a first frame in a cache, the first portion of the first stripe overlapping a second portion of a second stripe of the first frame, reading, by the image processor, a third portion of the second stripe from a memory, reading, by the image processor, the first portion of the first stripe from the cache, and processing, by the image processor, the second stripe using the first portion of the first stripe and the third portion of the second stripe. Other aspects and features are also claimed and described.

公开(公告)号：US11126431B1

公开(公告)日：2021-09-21

申请号：US16888493

申请日：2020-05-29

Applicant: QUALCOMM Incorporated

Inventor： Jean-Jacques Lecler ,  Alain Artieri

IPC: G06F9/30 ,  G06F12/02 ,  G11C11/4096

Abstract: A method for dynamic memory scheduling with enhanced bank-group batching is described. The method includes determining a read-bank group-spread of each rank, as a number of bank-groups of each respective rank targeted by at least one read instruction. The method further includes determining a write-bank group-spread of each rank, as a number of bank-groups of each rank targeted by at least one write instruction. The method also includes stalling a current batch of read instructions in a rank when the read-bank group-spread of the rank is less than a predetermined value. The method further includes stalling a current batch of write instructions in a rank when the write-bank group-spread of the rank is less than the predetermined value.

公开(公告)号：US20250068574A1

公开(公告)日：2025-02-27

申请号：US18454658

申请日：2023-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jungwon Suh ,  Pankaj Deshmukh ,  Subbarao Palacharla ,  Alain Artieri

IPC: G06F13/16 ,  G06F1/3234 ,  G06F13/28

Abstract: This disclosure provides systems, methods, and devices for memory systems that support an efficient mode for reducing power consumption in a memory module while maintaining access to all contents of memory. In a first aspect, a method includes communicating, by a memory module, first data stored in a first plurality of banks to a host device through a first sub-channel in a first operating mode; communicating second data stored in the second plurality of banks to the host device through a second sub-channel in the first operating mode; receiving a command to enter a second operating mode; and communicating third data stored in the first plurality of banks and fourth data stored in the second plurality of banks to the host device through the first sub-channel in the second operating mode. Other aspects and features are also claimed and described.

公开(公告)号：US10254823B2

公开(公告)日：2019-04-09

申请号：US15471865

申请日：2017-03-28

Applicant: QUALCOMM Incorporated

Inventor： Alain Artieri ,  Jean-Marie Tran

IPC: G06F1/00 ,  G06F1/3296 ,  G06F1/324 ,  H03K5/156 ,  G06F1/18

Abstract: An integrated circuit (IC) is disclosed herein for power management using duty cycles. In an example aspect, the integrated circuit includes multiple power domains, each of which includes a respective power state controller. The power state controller acts as a bridge between global supply lines of the integrated circuit and local supply lines of the respective power domain. Global supply lines can include a first global power rail, a second global power rail, and a global clock tree. Local supply lines can include a local power rail and a local clock tree. In operation, a power state controller adjusts a power state of the respective power domain in accordance with a duty cycle. A timeslot corresponding to the duty cycle can be separated into multiple time periods with durations of the time periods being based on the duty cycle.

公开(公告)号：US09734070B2

公开(公告)日：2017-08-15

申请号：US14921468

申请日：2015-10-23

Applicant: QUALCOMM INCORPORATED

Inventor： Alain Artieri ,  Subbarao Palacharla ,  Laurent Moll ,  Raghu Sankuratri ,  Kedar Bhole ,  Vinod Chamarty

IPC: G06F12/08 ,  G06F12/084 ,  G06F12/0895 ,  G06F12/0842 ,  G06F12/0846 ,  G06F12/127 ,  G06F12/0864 ,  G06F12/123

CPC classification number: G06F12/084 ,  G06F12/0842 ,  G06F12/0846 ,  G06F12/0864 ,  G06F12/0895 ,  G06F12/123 ,  G06F12/127 ,  G06F2212/1044 ,  G06F2212/1048 ,  G06F2212/601 ,  G06F2212/62

Abstract: A cache controller adaptively partitions a shared cache. The adaptive partitioning cache controller includes tag comparison and staling logic and selection logic that are responsive to client access requests and various parameters. A component cache is assigned a target occupancy which is compared to a current occupancy. A conditional identification of stale cache lines is used to manage data stored in the shared cache. When a conflict or cache miss is identified, selection logic identifies candidates for replacement preferably among cache lines identified as stale. Each cache line is assigned to a bucket with a fixed number of buckets per component cache. Allocated cache lines are assigned to a bucket as a function of the target occupancy. After a select number of buckets are filled, subsequent allocations result in the oldest cache lines being marked stale. Cache lines are deemed stale when their respective component cache active indicator is de-asserted.

公开(公告)号：US20160335190A1

公开(公告)日：2016-11-17

申请号：US14710693

申请日：2015-05-13

Applicant: QUALCOMM Incorporated

Inventor： Yanru Li ,  Subbarao Palacharla ,  Moinul Khan ,  Alain Artieri ,  Azzedine Touzni

IPC: G06F12/08 ,  G06F12/10

CPC classification number: G06F12/0888 ,  G06F12/084 ,  G06F12/0893 ,  G06F12/0895 ,  G06F12/1045 ,  G06F2212/1041 ,  G06F2212/1044 ,  G06F2212/152 ,  G06F2212/608 ,  G06F2212/65 ,  Y02D10/13

Abstract: Aspects include computing devices, systems, and methods for implementing a cache maintenance or status operation for a component cache of a system cache. A computing device may generate a component cache configuration table, assign at least one component cache indicator of a component cache to a master of the component cache, and map at least one control register to the component cache indicator by a centralized control entity. The computing device may store the component cache indicator such that the component cache indicator is accessible by the master of the component cache for discovering a virtualized view of the system cache and issuing a cache maintenance or status command for the component cache bypassing the centralized control entity. The computing device may receive the cache maintenance or status command by a control register associated with a cache maintenance or status command and the component cache bypassing the centralized control entity.

Abstract translation: 方面包括用于实现系统高速缓存的组件高速缓存的高速缓存维护或状态操作的计算设备，系统和方法。 计算设备可以生成组件高速缓存配置表，将组件高速缓存的至少一个组件高速缓存指示符分配给组件高速缓存的主设备，并且通过集中控制实体将至少一个控制寄存器映射到组件高速缓存指示器。 计算设备可以存储组件高速缓存指示符，使得组件高速缓存指示符可被组件高速缓存的主机访问，用于发现系统高速缓存的虚拟化视图，并且发出用于绕过集中控制实体的组件高速缓存的高速缓存维护或状态命令 。 计算设备可以通过与高速缓存维护或状态命令相关联的控制寄存器以及绕过集中控制实体的组件高速缓存来接收高速缓存维护或状态命令。

公开(公告)号：US20160019157A1

公开(公告)日：2016-01-21

申请号：US14333981

申请日：2014-07-17

Applicant: QUALCOMM Incorporated

Inventor： Subbarao Palacharla ,  Moinul Khan ,  Alain Artieri ,  Kedar Bhole ,  Vinod Chamarty ,  Pankaj Chaurasia ,  Raghu Sankuratri

IPC: G06F12/08 ,  G06F12/10 ,  G06F12/12

CPC classification number: G06F12/0893 ,  G06F12/084 ,  G06F12/0895 ,  G06F12/10 ,  G06F12/12 ,  G06F2212/1021 ,  G06F2212/1044 ,  G06F2212/152 ,  G06F2212/601 ,  G06F2212/6046 ,  Y02D10/13

Abstract: Aspects include computing devices, systems, and methods for partitioning a system cache by sets and ways into component caches. A system cache memory controller may manage the component caches and manage access to the component caches. The system cache memory controller may receive system cache access requests specifying component cache identifiers, and match the component cache identifiers with records correlating traits of the component cache identifiers with in a component cache configuration table. The component cache traits may include a set shift trait, set offset trait, and target ways, which may define the locations of the component caches in the system cache. The system cache memory controller may also receive a physical address for the system cache in the system cache access request, determine an indexing mode for the component cache, and translate the physical address for the component cache.

Abstract translation: 方面包括计算设备，系统和用于通过集合和方式将系统高速缓存分组到组件高速缓存中的方法。 系统高速缓冲存储器控制器可以管理组件高速缓存并管理对组件高速缓存的访问。 系统高速缓冲存储器控制器可以接收指定组件高速缓存标识符的系统高速缓存访​​问请求，并且将组件高速缓存标识符与组件高速缓存标识符的特征与组件高速缓存配置表相关联的记录进行匹配。 组件缓存特征可以包括设置的移动特征，设置偏移特征和目标方式，其可以定义系统高速缓存中的组件高速缓存的位置。 系统高速缓冲存储器控制器还可以在系统高速缓存访​​问请求中接收系统高速缓存的物理地址，确定组件高速缓存的索引模式，并转换组件高速缓存的物理地址。

公开(公告)号：US11907138B2

公开(公告)日：2024-02-20

申请号：US17646690

申请日：2021-12-31

Applicant: QUALCOMM Incorporated

Inventor： Hiral Nandu ,  Subbarao Palacharla ,  George Patsilaras ,  Alain Artieri ,  Simon Peter William Booth ,  Vipul Gandhi ,  Girish Bhat ,  Yen-Kuan Wu ,  Younghoon Kim

IPC: G06F12/123 ,  G06F9/30

CPC classification number: G06F12/123 ,  G06F9/30101

Abstract: Various embodiments include methods and devices for implementing a criterion aware cache replacement policy by a computing device. Embodiments may include updating a staling counter, writing a value of a local counter to a system cache in association with a location in the system cache for with data, in which the value of the local counter includes a value of the staling counter when (i.e., at the time) the associated data is written to the system cache, and using the value of the local counter of the associated data to determine whether the associated data is stale.

公开(公告)号：US11520706B2

公开(公告)日：2022-12-06

申请号：US17244398

申请日：2021-04-29

Applicant: QUALCOMM INCORPORATED

Inventor： Alain Artieri ,  Rakesh Kumar Gupta ,  Subbarao Palacharla ,  Kedar Bhole ,  Laurent Rene Moll ,  Carlo Spitale ,  Sparsh Singhai ,  Shyamkumar Thoziyoor ,  Gopi Tummala ,  Christophe Avoinne ,  Samir Ginde ,  Syed Minhaj Hassan ,  Jean-Jacques Lecler ,  Luigi Vinci

IPC: G06F12/00 ,  G06F12/0893 ,  G06F12/12

Abstract: Data caching may include storing data associated with DRAM transaction requests in data storage structures organized in a manner corresponding to the DRAM bank, bank group and rank organization. Data may be selected for transfer to the DRAM by selecting among the data storage structures.