Re: [PATCH v3 4/6] drm/i915/gem: Add extra pages in ttm_tt for ccs data

2022-03-07 Thread Matthew Auld
On 07/03/2022 13:40, Ramalingam C wrote: On Xe-HP and later devices, dedicated compression control state (CCS) stored in local memory is used for each surface, to support the 3D and media compression formats. The memory required for the CCS of the entire local memory is 1/256 of the local

[PATCH v3 4/6] drm/i915/gem: Add extra pages in ttm_tt for ccs data

2022-03-07 Thread Ramalingam C
On Xe-HP and later devices, dedicated compression control state (CCS) stored in local memory is used for each surface, to support the 3D and media compression formats. The memory required for the CCS of the entire local memory is 1/256 of the local memory size. So before the kernel boot, the