Re: [PATCH v3 4/8] drm/etnaviv: replace MMU flush marker with flush sequence

2019-08-13 Thread Guido Günther
Hi, On Fri, Aug 09, 2019 at 02:04:20PM +0200, Lucas Stach wrote: > If a MMU is shared between multiple GPUs, all of them need to flush their > TLBs, so a single marker that gets reset on the first flush won't do. > Replace the flush marker with a sequence number, so that it's possible to > check

Re: [PATCH v3 4/8] drm/etnaviv: replace MMU flush marker with flush sequence

2019-08-09 Thread Philipp Zabel
On Fri, 2019-08-09 at 14:04 +0200, Lucas Stach wrote: > If a MMU is shared between multiple GPUs, all of them need to flush their > TLBs, so a single marker that gets reset on the first flush won't do. > Replace the flush marker with a sequence number, so that it's possible to > check if the TLB

[PATCH v3 4/8] drm/etnaviv: replace MMU flush marker with flush sequence

2019-08-09 Thread Lucas Stach
If a MMU is shared between multiple GPUs, all of them need to flush their TLBs, so a single marker that gets reset on the first flush won't do. Replace the flush marker with a sequence number, so that it's possible to check if the TLB is in sync with the current page table state for each GPU.