The u32 version field encodes major version in the high word. We've been
checking for version >= 0.2.
Add opregion version logging while at it.
Fixes: 04ebaadb9f2d ("drm/i915/opregion: handle VBT sizes bigger than 6 KB")
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: Imre Deak <imre.d...@intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/intel_opregion.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_opregion.c
b/drivers/gpu/drm/i915/intel_opregion.c
index 30ae96c5c97c..7e4152d97c45 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -46,6 +46,9 @@
#define OPREGION_ASLE_EXT_OFFSET 0x1C00
#define OPREGION_SIGNATURE "IntelGraphicsMem"
+
+#define OPREGION_VERSION(major, minor) (((major) << 16) | (minor))
+
#define MBOX_ACPI (1<<0)
#define MBOX_SWSCI (1<<1)
#define MBOX_ASLE (1<<2)
@@ -924,6 +927,10 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
opregion->header = base;
opregion->lid_state = base + ACPI_CLID;
+ DRM_DEBUG_DRIVER("ACPI OpRegion version %u.%u\n",
+ opregion->header->opregion_ver >> 16,
+ opregion->header->opregion_ver & 0xffff);
+
mboxes = opregion->header->mboxes;
if (mboxes & MBOX_ACPI) {
DRM_DEBUG_DRIVER("Public ACPI methods supported\n");
@@ -952,8 +959,8 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
if (dmi_check_system(intel_no_opregion_vbt))
goto out;
- if (opregion->header->opregion_ver >= 2 && opregion->asle &&
- opregion->asle->rvda && opregion->asle->rvds) {
+ if (opregion->header->opregion_ver >= OPREGION_VERSION(2, 0) &&
+ opregion->asle && opregion->asle->rvda && opregion->asle->rvds) {
opregion->rvda = memremap(opregion->asle->rvda,
opregion->asle->rvds,
MEMREMAP_WB);
--
2.20.1
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