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drm/i915/dg2: Recognize pre-production hardware

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The first production SoC steppings for DG2 were C0 (for G10), B1 (for
G11), and A1 (for G12).  This corresponds to PCI revision IDs 0x8, 0x5,
and 0x1 respectively.  Add this information to the driver's
pre-production detection.

Bspec: 44477
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230816214201.534095-8-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2023-08-16 14:42:03 -07:00
parent 226fa3ab8b
commit 3d3e027161
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_driver.c
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@ -183,6 +183,9 @@ static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
pre |= IS_ICELAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x7;
pre |= IS_TIGERLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
pre |= IS_DG1(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
pre |= IS_DG2_G10(dev_priv) && INTEL_REVID(dev_priv) < 0x8;
pre |= IS_DG2_G11(dev_priv) && INTEL_REVID(dev_priv) < 0x5;
pre |= IS_DG2_G12(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
if (pre) {
drm_err(&dev_priv->drm, "This is a pre-production stepping. "