Re: [PATCH V3 1/4] mm: Define coherent device memory (CDM) node

2017-02-21 Thread Anshuman Khandual
On 02/17/2017 07:35 PM, Bob Liu wrote: > Hi Anshuman, > > I have a few questions about coherent device memory. Sure. > > On Wed, Feb 15, 2017 at 8:07 PM, Anshuman Khandual > wrote: >> There are certain devices like specialized accelerator, GPU cards, network >>

Re: [PATCH V3 1/4] mm: Define coherent device memory (CDM) node

2017-02-21 Thread Anshuman Khandual
On 02/17/2017 07:35 PM, Bob Liu wrote: > Hi Anshuman, > > I have a few questions about coherent device memory. Sure. > > On Wed, Feb 15, 2017 at 8:07 PM, Anshuman Khandual > wrote: >> There are certain devices like specialized accelerator, GPU cards, network >> cards, FPGA cards etc which

Re: [PATCH V3 1/4] mm: Define coherent device memory (CDM) node

2017-02-17 Thread Bob Liu
Hi Anshuman, I have a few questions about coherent device memory. On Wed, Feb 15, 2017 at 8:07 PM, Anshuman Khandual wrote: > There are certain devices like specialized accelerator, GPU cards, network > cards, FPGA cards etc which might contain onboard memory which

Re: [PATCH V3 1/4] mm: Define coherent device memory (CDM) node

2017-02-17 Thread Bob Liu
Hi Anshuman, I have a few questions about coherent device memory. On Wed, Feb 15, 2017 at 8:07 PM, Anshuman Khandual wrote: > There are certain devices like specialized accelerator, GPU cards, network > cards, FPGA cards etc which might contain onboard memory which is coherent > along with the

[PATCH V3 1/4] mm: Define coherent device memory (CDM) node

2017-02-15 Thread Anshuman Khandual
There are certain devices like specialized accelerator, GPU cards, network cards, FPGA cards etc which might contain onboard memory which is coherent along with the existing system RAM while being accessed either from the CPU or from the device. They share some similar properties with that of

[PATCH V3 1/4] mm: Define coherent device memory (CDM) node

2017-02-15 Thread Anshuman Khandual
There are certain devices like specialized accelerator, GPU cards, network cards, FPGA cards etc which might contain onboard memory which is coherent along with the existing system RAM while being accessed either from the CPU or from the device. They share some similar properties with that of