diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_device_info.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_device_info.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 40c590db3c76..e2aa5bc3a6e0 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -346,6 +346,25 @@ void intel_device_info_subplatform_init(struct drm_i915_private *i915) mask = BIT(INTEL_SUBPLATFORM_PORTF); } + if (IS_TIGERLAKE(i915)) { + struct pci_dev *root, *pdev = i915->drm.pdev; + + root = list_first_entry(&pdev->bus->devices, typeof(*root), bus_list); + + drm_WARN_ON(&i915->drm, mask); + drm_WARN_ON(&i915->drm, (root->device & TGL_ROOT_DEVICE_MASK) != + TGL_ROOT_DEVICE_ID); + + switch (root->device & TGL_ROOT_DEVICE_SKU_MASK) { + case TGL_ROOT_DEVICE_SKU_ULX: + mask = BIT(INTEL_SUBPLATFORM_ULX); + break; + case TGL_ROOT_DEVICE_SKU_ULT: + mask = BIT(INTEL_SUBPLATFORM_ULT); + break; + } + } + GEM_BUG_ON(mask & ~INTEL_SUBPLATFORM_BITS); RUNTIME_INFO(i915)->platform_mask[pi] |= mask; |