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drm/i915: record GEN2_IER in gtier[0] for pre-ilk error capture

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In pre-ilk platforms the engine interrupts live in GEN2_IER. Capture it
as part of gtier instead of display.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/f637219fe3accb69963266773b9ef7c1131875e4.1744630147.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula
2025-04-14 14:29:44 +03:00
parent 2eb0e67ef0
commit ef32101873
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/i915_gpu_error.c
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@@ -1782,8 +1782,6 @@ static void gt_record_display_regs(struct intel_gt_coredump *gt)
gt->ier = intel_uncore_read(uncore, VLV_IER);
else if (HAS_PCH_SPLIT(i915))
gt->ier = intel_uncore_read(uncore, DEIER);
else
gt->ier = intel_uncore_read(uncore, GEN2_IER);
}
/* Capture all other registers that GuC doesn't capture. */
@@ -1822,6 +1820,9 @@ static void gt_record_global_nonguc_regs(struct intel_gt_coredump *gt)
} else if (HAS_PCH_SPLIT(i915)) {
gt->gtier[0] = intel_uncore_read(uncore, GTIER);
gt->ngtier = 1;
} else {
gt->gtier[0] = intel_uncore_read(uncore, GEN2_IER);
gt->ngtier = 1;
}
gt->eir = intel_uncore_read(uncore, EIR);