Re: [PATCH v5 4/4] drm/xe/lnl: Offload system clear page activity to GPU

2024-07-18 Thread Nirmoy Das
On 7/18/2024 6:27 PM, Matthew Auld wrote: On 04/07/2024 09:18, Nirmoy Das wrote: On LNL because of flat CCS, driver creates a migrate job to clear CCS meta data. Extend that to also clear system pages using GPU. Inform TTM to allocate pages without __GFP_ZERO to avoid double page clearing by cl

Re: [PATCH v5 4/4] drm/xe/lnl: Offload system clear page activity to GPU

2024-07-18 Thread Matthew Auld
On 04/07/2024 09:18, Nirmoy Das wrote: On LNL because of flat CCS, driver creates a migrate job to clear CCS meta data. Extend that to also clear system pages using GPU. Inform TTM to allocate pages without __GFP_ZERO to avoid double page clearing by clearing out TTM_TT_FLAG_ZERO_ALLOC flag and s

Re: [PATCH v5 4/4] drm/xe/lnl: Offload system clear page activity to GPU

2024-07-07 Thread Nirmoy Das
Gentle reminder! On 7/4/2024 10:18 AM, Nirmoy Das wrote: On LNL because of flat CCS, driver creates a migrate job to clear CCS meta data. Extend that to also clear system pages using GPU. Inform TTM to allocate pages without __GFP_ZERO to avoid double page clearing by clearing out TTM_TT_FLAG_ZE