Re: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2024-01-12 Thread Ville Syrjälä
On Fri, Jan 12, 2024 at 05:31:10PM +0100, Nirmoy Das wrote: > > On 1/12/2024 4:12 PM, Ville Syrjälä wrote: > > On Wed, Jan 10, 2024 at 11:49:47AM +0100, Nirmoy Das wrote: > >> Hi Ville, > >> > >> Apologies, but I lost track of this series after I returned from sick > >> leave. > >> > >> > >> On 1

Re: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2024-01-12 Thread Nirmoy Das
On 1/12/2024 4:12 PM, Ville Syrjälä wrote: On Wed, Jan 10, 2024 at 11:49:47AM +0100, Nirmoy Das wrote: Hi Ville, Apologies, but I lost track of this series after I returned from sick leave. On 12/15/2023 11:59 AM, Ville Syrjala wrote: From: Ville Syrjälä On MTL accessing stolen memory via

Re: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2024-01-12 Thread Ville Syrjälä
On Wed, Jan 10, 2024 at 11:49:47AM +0100, Nirmoy Das wrote: > Hi Ville, > > Apologies, but I lost track of this series after I returned from sick leave. > > > On 12/15/2023 11:59 AM, Ville Syrjala wrote: > > From: Ville Syrjälä > > > > On MTL accessing stolen memory via the BARs is somehow bork

Re: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2024-01-10 Thread Nirmoy Das
On 1/10/2024 11:49 AM, Nirmoy Das wrote: Hi Ville, Apologies, but I lost track of this series after I returned from sick leave. Please ignore the uncontextual "but" in the previous response. I need to disable auto correct options. Regards, Nirmoy On 12/15/2023 11:59 AM, Ville Syrj

Re: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2024-01-10 Thread Nirmoy Das
Hi Ville, Apologies, but I lost track of this series after I returned from sick leave. On 12/15/2023 11:59 AM, Ville Syrjala wrote: From: Ville Syrjälä On MTL accessing stolen memory via the BARs is somehow borked, and it can hang the machine. As a workaround let's bypass the BARs and just g

Re: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2024-01-10 Thread Andrzej Hajda
On 15.12.2023 11:59, Ville Syrjala wrote: From: Ville Syrjälä On MTL accessing stolen memory via the BARs is somehow borked, and it can hang the machine. As a workaround let's bypass the BARs and just go straight to DSMBASE/GSMBASE instead. Note that on every other platform this itself would h

RE: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2023-12-15 Thread Sripada, Radhakrishna
> -Original Message- > From: Ville Syrjala > Sent: Friday, December 15, 2023 2:59 AM > To: intel-gfx@lists.freedesktop.org > Cc: Paz Zcharya ; Das, Nirmoy ; > Sripada, Radhakrishna ; Joonas Lahtinen > > Subject: [PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR

[PATCH v2 04/15] drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access

2023-12-15 Thread Ville Syrjala
From: Ville Syrjälä On MTL accessing stolen memory via the BARs is somehow borked, and it can hang the machine. As a workaround let's bypass the BARs and just go straight to DSMBASE/GSMBASE instead. Note that on every other platform this itself would hang the machine, but on MTL the system firmw