The default flags for freshly allocated interrupts are platform dependent, and apparently powerpc and arm set IRQ_NOREQUEST by default, and resets it once setup is complete.

Most do this in the IRQ domain's "map" function. The xe driver does not define a domain, so clear the NOREQUEST and NOAUTOEN flags as part of the initialization. Also set NOPROBE -- it is doubtful this will ever be relevant, but it seems correct for what is effectively a softirq.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6468 Fixes: 87a4c85d3a3ed579c86fd2612715ccb94c4001ff Cc: stable@vger.kernel.org # v6.7+ Signed-off-by: Simon Richter Simon.Richter@hogyros.de --- drivers/gpu/drm/xe/xe_heci_gsc.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/xe/xe_heci_gsc.c b/drivers/gpu/drm/xe/xe_heci_gsc.c index 2b3d49dd394c..b0e38bd2e6f8 100644 --- a/drivers/gpu/drm/xe/xe_heci_gsc.c +++ b/drivers/gpu/drm/xe/xe_heci_gsc.c @@ -40,6 +40,7 @@ static int heci_gsc_irq_init(int irq) irq_set_chip_and_handler_name(irq, &heci_gsc_irq_chip, handle_simple_irq, "heci_gsc_irq_handler");

+ irq_modify_status(irq, IRQ_NOREQUEST | IRQ_NOAUTOEN, IRQ_NOPROBE); return irq_set_chip_data(irq, NULL); }