Re: [Intel-gfx] [igt-dev] [PATCH igt] igt/gem_ctx_isolation: Reset a scratch context

2018-03-27 Thread Chris Wilson
Quoting Tvrtko Ursulin (2018-03-27 16:41:14) > > [resend for typo in cc] The small advantage in redundancy, I guess. -Chris ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [Intel-gfx] [igt-dev] [PATCH igt] igt/gem_ctx_isolation: Reset a scratch context

2018-03-27 Thread Tvrtko Ursulin
[resend for typo in cc] On 27/03/2018 14:59, Chris Wilson wrote: Quoting Chris Wilson (2018-03-27 14:52:20) Quoting Chris Wilson (2018-03-27 14:48:43) If we inject a reset into the target context, there is a risk that the register state is never saved back to memory. The exact interaction

Re: [Intel-gfx] [igt-dev] [PATCH igt] igt/gem_ctx_isolation: Reset a scratch context

2018-03-27 Thread Tvrtko Ursulin
[resend for typo in cc] On 27/03/2018 14:48, Chris Wilson wrote: If we inject a reset into the target context, there is a risk that the register state is never saved back to memory. The exact interaction between reset, the context image and the precise timing of our execution are not well