公开(公告)号：EP2619965A1

公开(公告)日：2013-07-31

申请号：EP11761769.6

申请日：2011-09-19

申请人： Qualcomm Incorporated

发明人： BOURD, Alexei, V. ,  SHARP, Colin, Christopher ,  GARCIA GARCIA, David, Rigel ,  ZHANG, Chihong

IPC分类号： H04L29/08 ,  G06F9/54 ,  G06F9/38

CPC分类号： G06F9/544 ,  G06F9/54 ,  G06F9/546 ,  G06T1/20 ,  G06T1/60

摘要： This disclosure describes communication techniques that may be used within a multiple-processor computing platform. The techniques may, in some examples, provide software interfaces that may be used to support message passing within a multiple-processor computing platform that initiates tasks using command queues. The techniques may, in additional examples, provide software interfaces that may be used for shared memory inter-processor communication within a multiple-processor computing platform. In further examples, the techniques may provide a graphics processing unit (GPU) that includes hardware for supporting message passing and/or shared memory communication between the GPU and a host CPU.

摘要翻译： 本公开描述了可以在多处理器计算平台内使用的通信技术。 在一些示例中，这些技术可以提供可用于支持使用命令队列发起任务的多处理器计算平台内的消息传递的软件接口。 在另外的示例中，这些技术可以提供可用于多处理器计算平台内的共享存储器处理器间通信的软件接口。 在另外的示例中，这些技术可以提供图形处理单元（GPU），其包括用于支持GPU和主机CPU之间的消息传递和/或共享存储器通信的硬件。

公开(公告)号：EP2619666B1

公开(公告)日：2016-11-23

申请号：EP11764399.9

申请日：2011-09-19

申请人： Qualcomm Incorporated

发明人： BOURD, Alexei, V. ,  SHARP, Colin, Christopher ,  GARCIA GARCIA, David, Rigel ,  ZHANG, Chihong

IPC分类号： G06F9/54 ,  G06F9/38

CPC分类号： G06F9/544 ,  G06F9/54 ,  G06F9/546 ,  G06T1/20 ,  G06T1/60

摘要： This disclosure describes communication techniques that may be used within a multiple-processor computing platform. The techniques may, in some examples, provide software interfaces that may be used to support message passing within a multiple-processor computing platform that initiates tasks using command queues. The techniques may, in additional examples, provide software interfaces that may be used for shared memory inter-processor communication within a multiple-processor computing platform. In further examples, the techniques may provide a graphics processing unit (GPU) that includes hardware for supporting message passing and/or shared memory communication between the GPU and a host CPU.

公开(公告)号：EP2994837A1

公开(公告)日：2016-03-16

申请号：EP14728008.5

申请日：2014-04-22

申请人： Qualcomm Incorporated

发明人： SHARP, Colin, Christopher ,  SARTORIUS, Thomas, Andrew

IPC分类号： G06F12/10 ,  G06F12/14

CPC分类号： G06F12/1009 ,  G06F12/145

摘要： A device includes a memory that stores a first page table that includes a first page table entry, wherein the first page table entry further includes a physical address, an alternative location associated with the page table entry, and a physical page of memory associated with the physical address. A first processing unit is configured to: read the first page table entry, and determine the physical address from the first page table entry. The second processing unit is configured to: read the physical address from the first page table entry, determine second page attribute data from the alternative location, wherein the second page attribute data define one or more accessibility attributes of the physical page of memory for the second processing unit, and access the physical page of memory associated with the physical address according to the one or more accessibility attributes.

公开(公告)号：EP2619666A1

公开(公告)日：2013-07-31

申请号：EP11764399.9

申请日：2011-09-19

申请人： Qualcomm Incorporated

发明人： BOURD, Alexei, V. ,  SHARP, Colin, Christopher ,  GARCIA GARCIA, David, Rigel ,  ZHANG, Chihong

IPC分类号： G06F9/54 ,  G06F9/38

CPC分类号： G06F9/544 ,  G06F9/54 ,  G06F9/546 ,  G06T1/20 ,  G06T1/60

摘要： This disclosure describes communication techniques that may be used within a multiple-processor computing platform. The techniques may, in some examples, provide software interfaces that may be used to support message passing within a multiple-processor computing platform that initiates tasks using command queues. The techniques may, in additional examples, provide software interfaces that may be used for shared memory inter-processor communication within a multiple-processor computing platform. In further examples, the techniques may provide a graphics processing unit (GPU) that includes hardware for supporting message passing and/or shared memory communication between the GPU and a host CPU.

摘要翻译： 本公开描述了可以在多处理器计算平台内使用的通信技术。 在一些示例中，这些技术可以提供可用于支持使用命令队列发起任务的多处理器计算平台内的消息传递的软件接口。 在另外的示例中，这些技术可以提供可用于多处理器计算平台内的共享存储器处理器间通信的软件接口。 在进一步的示例中，这些技术可以提供包括用于支持GPU与主机CPU之间的消息传递和/或共享存储器通信的硬件的图形处理单元（GPU）。

公开(公告)号：EP2994837B1

公开(公告)日：2017-07-12

申请号：EP14728008.5

申请日：2014-04-22

申请人： Qualcomm Incorporated

发明人： SHARP, Colin, Christopher ,  SARTORIUS, Thomas, Andrew

IPC分类号： G06F12/1009 ,  G06F12/14

CPC分类号： G06F12/1009 ,  G06F12/145

公开(公告)号：EP2956881B1

公开(公告)日：2017-03-08

申请号：EP13713702.2

申请日：2013-03-19

申请人： Qualcomm Incorporated

发明人： SHARP, Colin, Christopher ,  KOTTILINGAL, Sudeep, Ravi ,  FRISINGER, Thomas, Edwin ,  GRUBER, Andrew, E.

IPC分类号： G06F21/10 ,  G06F21/74

CPC分类号： G06F21/53 ,  G06F21/10 ,  G06F21/50 ,  G06F21/74 ,  G06F2221/0746

公开(公告)号：EP2956881A1

公开(公告)日：2015-12-23

申请号：EP13713702.2

申请日：2013-03-19

申请人： Qualcomm Incorporated

发明人： SHARP, Colin, Christopher ,  KOTTILINGAL, Sudeep, Ravi ,  FRISINGER, Thomas, Edwin ,  GRUBER, Andrew, E.

IPC分类号： G06F21/10 ,  G06F21/74

CPC分类号： G06F21/53 ,  G06F21/10 ,  G06F21/50 ,  G06F21/74 ,  G06F2221/0746

摘要： This disclosure proposes techniques for graphics processing. In one example, a graphics processing unit (GPU) is configured to access a first memory unit according to one of an unsecure mode and a secure mode. The GPU comprises a memory access controller configured to allow the GPU to read data from only an unsecure portion of the first memory unit when the GPU is in the unsecure mode, and configured to allow the GPU to write data only to a secure portion of the first memory unit when the GPU is in the secure mode.