Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-24 Thread Rob Clark
On Tue, Nov 24, 2020 at 1:43 PM Will Deacon wrote: > > On Tue, Nov 24, 2020 at 11:05:39AM -0800, Rob Clark wrote: > > On Tue, Nov 24, 2020 at 3:10 AM Will Deacon wrote: > > > On Tue, Nov 24, 2020 at 09:32:54AM +0530, Sai Prakash Ranjan wrote: > > > > On 2020-11-24 00:52, Rob Clark wrote: > > > >

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-24 Thread Will Deacon
On Tue, Nov 24, 2020 at 11:05:39AM -0800, Rob Clark wrote: > On Tue, Nov 24, 2020 at 3:10 AM Will Deacon wrote: > > On Tue, Nov 24, 2020 at 09:32:54AM +0530, Sai Prakash Ranjan wrote: > > > On 2020-11-24 00:52, Rob Clark wrote: > > > > On Mon, Nov 23, 2020 at 9:01 AM Sai Prakash Ranjan > > > > wr

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-24 Thread Rob Clark
On Tue, Nov 24, 2020 at 3:10 AM Will Deacon wrote: > > On Tue, Nov 24, 2020 at 09:32:54AM +0530, Sai Prakash Ranjan wrote: > > On 2020-11-24 00:52, Rob Clark wrote: > > > On Mon, Nov 23, 2020 at 9:01 AM Sai Prakash Ranjan > > > wrote: > > > > > > > > On 2020-11-23 20:51, Will Deacon wrote: > > >

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-24 Thread Will Deacon
On Tue, Nov 24, 2020 at 09:32:54AM +0530, Sai Prakash Ranjan wrote: > On 2020-11-24 00:52, Rob Clark wrote: > > On Mon, Nov 23, 2020 at 9:01 AM Sai Prakash Ranjan > > wrote: > > > > > > On 2020-11-23 20:51, Will Deacon wrote: > > > > On Tue, Nov 17, 2020 at 08:00:39PM +0530, Sai Prakash Ranjan wr

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-23 Thread Sai Prakash Ranjan
On 2020-11-24 00:52, Rob Clark wrote: On Mon, Nov 23, 2020 at 9:01 AM Sai Prakash Ranjan wrote: On 2020-11-23 20:51, Will Deacon wrote: > On Tue, Nov 17, 2020 at 08:00:39PM +0530, Sai Prakash Ranjan wrote: >> Some hardware variants contain a system cache or the last level >> cache(llc). This c

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-23 Thread Rob Clark
On Mon, Nov 23, 2020 at 9:01 AM Sai Prakash Ranjan wrote: > > On 2020-11-23 20:51, Will Deacon wrote: > > On Tue, Nov 17, 2020 at 08:00:39PM +0530, Sai Prakash Ranjan wrote: > >> Some hardware variants contain a system cache or the last level > >> cache(llc). This cache is typically a large block

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-23 Thread Sai Prakash Ranjan
On 2020-11-23 20:51, Will Deacon wrote: On Tue, Nov 17, 2020 at 08:00:39PM +0530, Sai Prakash Ranjan wrote: Some hardware variants contain a system cache or the last level cache(llc). This cache is typically a large block which is shared by multiple clients on the SOC. GPU uses the system cache

Re: [PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-23 Thread Will Deacon
On Tue, Nov 17, 2020 at 08:00:39PM +0530, Sai Prakash Ranjan wrote: > Some hardware variants contain a system cache or the last level > cache(llc). This cache is typically a large block which is shared > by multiple clients on the SOC. GPU uses the system cache to cache > both the GPU data buffers(

[PATCHv8 0/8] System Cache support for GPU and required SMMU support

2020-11-17 Thread Sai Prakash Ranjan
Some hardware variants contain a system cache or the last level cache(llc). This cache is typically a large block which is shared by multiple clients on the SOC. GPU uses the system cache to cache both the GPU data buffers(like textures) as well the SMMU pagetables. This helps with improved render