Re: Request for backporting accel/ivpu PTL patches to 6.12

[Greg KH <gregkh@linuxfoundation.org>]

On Fri, Jun 06, 2025 at 02:09:49PM +0200, Jacek Lawrynowicz wrote:
> Hi,
> 
> On 6/4/2025 3:21 PM, Greg KH wrote:
> > On Tue, Jun 03, 2025 at 12:42:09PM +0200, Jacek Lawrynowicz wrote:
> >> Hi,
> >>
> >> Please cherry-pick following 9 patches to 6.12:
> >> 525a3858aad73 accel/ivpu: Set 500 ns delay between power island TRICKLE and ENABLE
> >> 08eb99ce911d3 accel/ivpu: Do not fail on cmdq if failed to allocate preemption buffers
> >> 755fb86789165 accel/ivpu: Use whole user and shave ranges for preemption buffers
> >> 98110eb5924bd accel/ivpu: Increase MS info buffer size
> >> c140244f0cfb9 accel/ivpu: Add initial Panther Lake support
> >> 88bdd1644ca28 accel/ivpu: Update power island delays
> >> ce68f86c44513 accel/ivpu: Do not fail when more than 1 tile is fused
> >> 83b6fa5844b53 accel/ivpu: Increase DMA address range
> >> e91191efe75a9 accel/ivpu: Move secondary preemption buffer allocation to DMA range
> >>
> >> These add support for new Panther Lake HW.
> >> They should apply without conflicts.
> > 
> > That's way larger than the normal "add a new quirk or device id" patch
> > for new device support, right?  Why do you feel this is needed and
> > relevant for 6.12.y and meets the requirements that we have for stable
> > kernel patches?
> 
> Yeah, maybe I overshot a bit. Sorry about this.
> I wanted to provide the best possible PTL experience but most of these patches are not critical.
> 
> The absolute minimal set of patches to enable PTL is:
> c140244f0cfb9 accel/ivpu: Add initial Panther Lake support
> 88bdd1644ca28 accel/ivpu: Update power island delays
> 
> Please include just these two.

Both now queued up, thanks.

greg k-h