Re: [PATCH 02/18] x86/gpu: add ADL_S stolen memory support

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On Wed, Oct 21, 2020 at 01:43:42PM -0700, Matt Roper wrote:
On Wed, Oct 21, 2020 at 06:31:57AM -0700, Aditya Swarup wrote:
From: Caz Yokoyama <caz.yokoyama@xxxxxxxxx>

ADL_S re-uses the same stolen memory registers as TGL and ICL.

Bspec: 52055
Bspec: 49589
Bspec: 49636

Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Caz Yokoyama <caz.yokoyama@xxxxxxxxx>
Signed-off-by: Aditya Swarup <aditya.swarup@xxxxxxxxx>

I think you need to Cc the x86 maintainers on this patch and get their
ack to merge it through the i915 tree.

Yeah, but make sure to mention the dependency on the first patch so they
don't try to apply and get a build error. See
https://lore.kernel.org/intel-gfx/alpine.DEB.2.21.1907170845470.1767@xxxxxxxxxxxxxxxxxxxxxxx/

Also see https://lore.kernel.org/intel-gfx/20200520093025.GD1457@xxxxxxx/

For the patch itself,

Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>

thanks
Lucas De Marchi



Matt

---
 arch/x86/kernel/early-quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index a4b5af03dcc1..6edd1e2ee8af 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -551,6 +551,7 @@ static const struct pci_device_id intel_early_ids[] __initconst = {
 	INTEL_EHL_IDS(&gen11_early_ops),
 	INTEL_TGL_12_IDS(&gen11_early_ops),
 	INTEL_RKL_IDS(&gen11_early_ops),
+	INTEL_ADLS_IDS(&gen11_early_ops),
 };

 struct resource intel_graphics_stolen_res __ro_after_init = DEFINE_RES_MEM(0, 0);
--
2.27.0

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--
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795
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