公开(公告)号：US20190095220A1

公开(公告)日：2019-03-28

申请号：US16137226

申请日：2018-09-20

Applicant: QUALCOMM Incorporated

Inventor： Ajay IYENGAR ,  Yugandhar NARAYANA ,  Dhamim PACKER ALI ,  Sreenivasulu Reddy CHALAMCHARLA ,  Daison DAVIS KOOLA

IPC: G06F9/4401 ,  G06F9/48 ,  G06F9/54 ,  G06F15/78

Abstract: Various aspects are described herein. In some aspects, the disclosure provides a method of enabling a multicore framework in a pre-boot environment for a system-on-chip (SoC) comprising a plurality of processors comprising a first processor and a second processor. The method includes initiating, by the first processor, bootup of the SoC into a pre-boot environment. The method further includes scheduling, by the first processor, execution of one or more boot-up tasks by a second processor. The method further includes executing, by the second processor, the one or more boot-up tasks in the pre-boot environment. The method further includes executing, by the first processor, one or more additional tasks in parallel with the second processor executing the one or more boot-up tasks.

公开(公告)号：US20190332425A1

公开(公告)日：2019-10-31

申请号：US16203386

申请日：2018-11-28

Applicant: QUALCOMM Incorporated

Inventor： Yugandhar NARAYANA ,  Dhamim PACKER ALI ,  Ajay IYENGAR ,  Kedar ATHAWALE ,  Eric TALLET

IPC: G06F9/48 ,  G06F9/52 ,  G06F9/38

Abstract: Various aspects are described herein. In some aspects, the disclosure provides a method for a system-on-chip (SoC) including one or more computing cores. The method includes providing a scheduler to schedule running of threads on the one or more computing cores in a pre-boot environment including a core thread configured to provide a plurality of services. The method further includes providing, by the scheduler, a first lock for the core thread. The method further includes initializing, by the core thread, one or more additional services separate from the plurality of services. The method further includes selectively allowing access to the plurality of services of the core thread to one or more additional threads based on a status of the first lock. The method further includes allowing access to the one or more additional services to the one or more additional threads independent of the status of the first lock.