Re: [Intel-gfx] [PATCH 1/3] drm/i915/execlists: Force write serialisation into context image vs execution

2018-11-08 Thread Chris Wilson
Quoting Chris Wilson (2018-11-08 12:11:05) > Quoting Mika Kuoppala (2018-11-08 12:00:39) > > Chris Wilson writes: > > > > > Ensure that the writes into the context image are completed prior to the > > > register mmio to trigger execution. Although previously we were assured > > > by the SDM that

Re: [Intel-gfx] [PATCH 1/3] drm/i915/execlists: Force write serialisation into context image vs execution

2018-11-08 Thread Chris Wilson
Quoting Mika Kuoppala (2018-11-08 12:13:42) > Chris Wilson writes: > > > Quoting Mika Kuoppala (2018-11-08 12:00:39) > >> Chris Wilson writes: > >> > + /* > >> > + * Make sure the context image is complete before we submit it to > >> > HW. > >> > + * > >> > + * Ostensibly,

Re: [Intel-gfx] [PATCH 1/3] drm/i915/execlists: Force write serialisation into context image vs execution

2018-11-08 Thread Mika Kuoppala
Chris Wilson writes: > Quoting Mika Kuoppala (2018-11-08 12:00:39) >> Chris Wilson writes: >> >> > Ensure that the writes into the context image are completed prior to the >> > register mmio to trigger execution. Although previously we were assured >> > by the SDM that all writes are flushed

Re: [Intel-gfx] [PATCH 1/3] drm/i915/execlists: Force write serialisation into context image vs execution

2018-11-08 Thread Chris Wilson
Quoting Mika Kuoppala (2018-11-08 12:00:39) > Chris Wilson writes: > > > Ensure that the writes into the context image are completed prior to the > > register mmio to trigger execution. Although previously we were assured > > by the SDM that all writes are flushed before an uncached memory > >

Re: [Intel-gfx] [PATCH 1/3] drm/i915/execlists: Force write serialisation into context image vs execution

2018-11-08 Thread Mika Kuoppala
Chris Wilson writes: > Ensure that the writes into the context image are completed prior to the > register mmio to trigger execution. Although previously we were assured > by the SDM that all writes are flushed before an uncached memory > transaction (our mmio write to submit the context to HW

[Intel-gfx] [PATCH 1/3] drm/i915/execlists: Force write serialisation into context image vs execution

2018-11-08 Thread Chris Wilson
Ensure that the writes into the context image are completed prior to the register mmio to trigger execution. Although previously we were assured by the SDM that all writes are flushed before an uncached memory transaction (our mmio write to submit the context to HW for execution), we have