From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Most plattforms don't have a fixed 1MiB WOPCM so stop saying that they
do.
Also toss in a FIXME about actually using the WOPCM size we probed from
the hardware instead of assuming the fixed 1MiB size.
Cc: Jackie Li <yaodong.li@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_wopcm.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c
index 74bf76f3fddc..75c7a2b0c869 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.c
+++ b/drivers/gpu/drm/i915/intel_wopcm.c
@@ -71,6 +71,12 @@
*/
void intel_wopcm_init_early(struct intel_wopcm *wopcm)
{
+ struct drm_i915_private *i915 = wopcm_to_i915(wopcm);
+
+ if (!HAS_GUC(i915))
+ return;
+
+ /* FIXME use the size we actually probed from the hardware */
wopcm->size = GEN9_WOPCM_SIZE;
DRM_DEBUG_DRIVER("WOPCM size: %uKiB\n", wopcm->size / 1024);
@@ -163,7 +169,8 @@ int intel_wopcm_init(struct intel_wopcm *wopcm)
u32 guc_wopcm_rsvd;
int err;
- GEM_BUG_ON(!wopcm->size);
+ if (!wopcm->size)
+ return 0;
if (guc_fw_size >= wopcm->size) {
DRM_ERROR("GuC FW (%uKiB) is too big to fit in WOPCM.",
--
2.16.4
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