[Intel-gfx] [PATCH 1/1] x86/gpu: Add Alderlake-S stolen memory support

Aditya Swarup aditya.swarup at intel.com
Mon Jan 25 10:59:31 UTC 2021

From: Caz Yokoyama <caz.yokoyama at intel.com>

Alderlake-S is a Gen 12 based hybrid processor architeture. As it
belongs to Gen 12 family, it uses the same GTT stolen memory settings
like its predecessors - ICL(Gen 11) and TGL(Gen 12). This patch inherits
the gen11 and gen 9 quirks for determining base and size of stolen

Note that this patch depends on commit 0883d63b19bb
("drm/i915/adl_s: Add ADL-S platform info and PCI ids")

Bspec: 52055
Bspec: 49589
Bspec: 49636

Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Cc: Jani Nikula <jani.nikula at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Imre Deak <imre.deak at intel.com>
Cc: x86 at kernel.org
Cc: Ingo Molnar <mingo at redhat.com>,
Cc: Thomas Gleixner <tglx at linutronix.de>,
Cc: Borislav Petkov <bp at suse.de>
Signed-off-by: Caz Yokoyama <caz.yokoyama at intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup at intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>
 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_ADLS_IDS(&gen11_early_ops),
 struct resource intel_graphics_stolen_res __ro_after_init = DEFINE_RES_MEM(0, 0);

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