[PATCH v2] x86/gpu: add CFL to early quirks

* [PATCH v2] x86/gpu: add CFL to early quirks
@ 2017-12-13 20:04 ` Lucas De Marchi
  0 siblings, 0 replies; 9+ messages in thread
From: Lucas De Marchi @ 2017-12-13 20:04 UTC (permalink / raw)
  To: intel-gfx
  Cc: Lucas De Marchi, Rodrigo Vivi, Anusha Srivatsa, Jani Nikula,
	Joonas Lahtinen, David Airlie, dri-devel, Ingo Molnar,
	H . Peter Anvin, Thomas Gleixner, x86, stable

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(+)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 3cbb2c78a9df..bae0d32e327b 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -528,6 +528,7 @@ static const struct pci_device_id intel_early_ids[] __initconst = {
 	INTEL_SKL_IDS(&gen9_early_ops),
 	INTEL_BXT_IDS(&gen9_early_ops),
 	INTEL_KBL_IDS(&gen9_early_ops),
+	INTEL_CFL_IDS(&gen9_early_ops),
 	INTEL_GLK_IDS(&gen9_early_ops),
 	INTEL_CNL_IDS(&gen9_early_ops),
 };
diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
index 972a25633525..c65e4489006d 100644
--- a/include/drm/i915_pciids.h
+++ b/include/drm/i915_pciids.h
@@ -392,6 +392,12 @@
 	INTEL_VGA_DEVICE(0x3EA8, info), /* ULT GT3 */ \
 	INTEL_VGA_DEVICE(0x3EA5, info)  /* ULT GT3 */
 
+#define INTEL_CFL_IDS(info) \
+	INTEL_CFL_S_GT1_IDS(info), \
+	INTEL_CFL_S_GT2_IDS(info), \
+	INTEL_CFL_H_GT2_IDS(info), \
+	INTEL_CFL_U_GT3_IDS(info)
+
 /* CNL U 2+2 */
 #define INTEL_CNL_U_GT2_IDS(info) \
 	INTEL_VGA_DEVICE(0x5A52, info), \
-- 
2.14.3

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