Re: [PATCH v3 7/8] drm/panfrost: Add support for GPU heap allocations

2019-08-09 Thread Steven Price
On 02/08/2019 20:51, Rob Herring wrote: > The midgard/bifrost GPUs need to allocate GPU heap memory which is > allocated on GPU page faults and not pinned in memory. The vendor driver > calls this functionality GROW_ON_GPF. > > This implementation assumes that BOs allocated with the >

[PATCH v3 7/8] drm/panfrost: Add support for GPU heap allocations

2019-08-02 Thread Rob Herring
The midgard/bifrost GPUs need to allocate GPU heap memory which is allocated on GPU page faults and not pinned in memory. The vendor driver calls this functionality GROW_ON_GPF. This implementation assumes that BOs allocated with the PANFROST_BO_NOEXEC flag are never mmapped or exported. Both of