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drm/xe/hw_error: Defeature hardware error handling with system controller

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Hardware errors are reported through System Controller on the platforms
that support it, and never routed as direct IRQ to SGUnit. Defeature
their handling to prevent unexpected side effects.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
Link: https://patch.msgid.link/20260618153209.110899-2-raag.jadav@intel.com
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
This commit is contained in:
Raag Jadav
2026-06-18 21:01:26 +05:30
committed by Riana Tauro
parent c47ffed42b
commit ff33a7f1d4
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/xe/xe_hw_error.c
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@@ -437,6 +437,16 @@ static void hw_error_source_handler(struct xe_tile *tile, const enum hardware_er
if (!IS_DGFX(xe))
return;
/*
* Hardware errors are reported through System Controller on the platforms that
* support it, and never routed as direct IRQ to SGUnit. So we should never be
* here for those platforms.
*/
if (xe->info.has_sysctrl) {
drm_err_ratelimited(&xe->drm, HW_ERR "Invalid error routing\n");
return;
}
spin_lock_irqsave(&xe->irq.lock, flags);
err_src = xe_mmio_read32(&tile->mmio, DEV_ERR_STAT_REG(hw_err));
if (!err_src) {