Re: [Intel-gfx] [PATCH v2] x86/gpu: add CFL to early quirks

[Timo Aaltonen <tjaalton@ubuntu.com>]

On 15.12.2017 23:19, Rodrigo Vivi wrote:
> On Fri, Dec 15, 2017 at 04:39:25PM +0000, Ingo Molnar wrote:
>>
>> * Lucas De Marchi <lucas.demarchi@intel.com> wrote:
>>
>>> CFL was missing from intel_early_ids[]. The PCI ID needs to be there to
>>> allow the memory region to be stolen, otherwise we could have RAM being
>>> arbitrarily overwritten if for example we keep using the UEFI framebuffer,
>>> depending on how BIOS has set up the e820 map.
>>>
>>> Fixes: b056f8f3d6b9 ("drm/i915/cfl: Add Coffee Lake PCI IDs for S Skus.")
>>> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
>>> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
>>> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
>>> Cc: Jani Nikula <jani.nikula@linux.intel.com>
>>> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
>>> Cc: David Airlie <airlied@linux.ie>
>>> Cc: intel-gfx@lists.freedesktop.org
>>> Cc: dri-devel@lists.freedesktop.org
>>> Cc: Ingo Molnar <mingo@kernel.org>
>>> Cc: H. Peter Anvin <hpa@zytor.com>
>>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>> Cc: x86@kernel.org
>>> Cc: <stable@vger.kernel.org> # v4.13+ 0890540e21cf drm/i915: add GT number to intel_device_info
>>> Cc: <stable@vger.kernel.org> # v4.13+ 41693fd52373 drm/i915/kbl: Change a KBL pci id to GT2 from GT1.5
>>> Cc: <stable@vger.kernel.org> # v4.13+
>>> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
>>> ---
>>>
>>> v2: improve commit message, add Fixes tag and CC stable
>>>
>>>  arch/x86/kernel/early-quirks.c | 1 +
>>>  include/drm/i915_pciids.h      | 6 ++++++
>>>  2 files changed, 7 insertions(+)
>>
>> Acked-by: Ingo Molnar <mingo@kernel.org>
> 
> Merged to drm-intel-next-queued.
> Thanks for the patches, suggestions and acks.

Shouldn't this go to v4.15 as well, because CFL is enabled there? I
don't see it in rc8.