diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_region_lmem.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index cd105ec10429..e9c12e0d6f59 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -111,6 +111,12 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) flat_ccs_base = intel_gt_read_register(gt, XEHPSDV_FLAT_CCS_BASE_ADDR); flat_ccs_base = (flat_ccs_base >> XEHPSDV_CCS_BASE_SHIFT) * SZ_64K; + /* FIXME: Remove this when we have small-bar enabled */ + if (pci_resource_len(pdev, 2) < lmem_size) { + drm_err(&i915->drm, "System requires small-BAR support, which is currently unsupported on this kernel\n"); + return ERR_PTR(-EINVAL); + } + if (GEM_WARN_ON(lmem_size < flat_ccs_base)) return ERR_PTR(-EIO); |