drm/i915: Extend BIOS stolen mem handling to all platform
Based upon a patch from Deepak, but reworked to only apply on gen7+
and with the logic a bit clarified.
v2: Fix s/SHIFT/MASK/ fumble that Ville spotted.
Cc: Deepak S <deepak.s@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b65bdfc..ad8179b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -143,6 +143,14 @@
#define GAB_CTL 0x24000
#define GAB_CTL_CONT_AFTER_PAGEFAULT (1<<8)
+#define GEN7_BIOS_RESERVED 0x1082C0
+#define GEN7_BIOS_RESERVED_1M (0 << 5)
+#define GEN7_BIOS_RESERVED_256K (1 << 5)
+#define GEN8_BIOS_RESERVED_SHIFT 7
+#define GEN7_BIOS_RESERVED_MASK 0x1
+#define GEN8_BIOS_RESERVED_MASK 0x3
+
+
/* VGA stuff */
#define VGA_ST01_MDA 0x3ba