[Intel-xe] [RFC v2 0/6] Enable compression handling on LNL.

[Ghimiray, Himal Prasad]

> -----Original Message-----
> From: Thomas Hellström <thomas.hellstrom at linux.intel.com>
> Sent: 28 November 2023 19:07
> To: Ghimiray, Himal Prasad <himal.prasad.ghimiray at intel.com>; intel-
> xe at lists.freedesktop.org
> Subject: Re: [RFC v2 0/6] Enable compression handling on LNL.
> 
> Hi!
> 
> On Tue, 2023-11-21 at 15:39 +0530, Himal Prasad Ghimiray wrote:
> > Series enables flat ccs on xe2 igfx platforms and handles clearing and
> > copy of ccs metadata during bo creation and xe_bo_move respectively.
> >
> > Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
> > Signed-off-by: Himal Prasad Ghimiray
> > <himal.prasad.ghimiray at intel.com>
> >
> > Himal Prasad Ghimiray (6):
> >   drm/xe/xe2: Support flat ccs.
> >   drm/xe/xe2: Determine bios enablement for flat ccs on igfx.
> >   drm/xe/xe2: Allocate extra pages for ccs during bo create.
> >   drm/xe/xe2: Updates on XY_CTRL_SURF_COPY_BLT
> >   drm/xe/xe_migrate.c: Use NULL 1G PTE mapped at 255GiB VA for ccs
> >     clear.
> >   drm/xe/xe2: Handle flat ccs move for igfx.
> >
> >  drivers/gpu/drm/xe/regs/xe_gpu_commands.h |   3 +-
> >  drivers/gpu/drm/xe/regs/xe_gt_regs.h      |   3 +
> >  drivers/gpu/drm/xe/xe_bo.c                |  40 ++++---
> >  drivers/gpu/drm/xe/xe_bo_types.h          |   2 +
> >  drivers/gpu/drm/xe/xe_device.c            |  32 ++++-
> >  drivers/gpu/drm/xe/xe_migrate.c           | 139 +++++++++-----------
> > --
> >  drivers/gpu/drm/xe/xe_pci.c               |   2 +-
> >  7 files changed, 119 insertions(+), 102 deletions(-)
> >
> 
> I forgot to mention, in xe/tests/xe_bo.c there is a kunit test that exercises
> basic clearing and migration with a CCS-metadata-enabled bo.
> IMO we should update that to make sure it runs with the new code as well.


Sure.
> 
> Thanks,
> Thomas