On Mon, Oct 11, 2021 at 08:51:05PM +0530, Thanneeru Srinivasulu wrote: > Injecting probe errors -ENXIO for MMIO send. > > Signed-off-by: Thanneeru Srinivasulu <thanneeru.srinivasulu@xxxxxxxxx> Reviewed-by: Matthew Brost <matthew.brost@xxxxxxxxx> > --- > drivers/gpu/drm/i915/gt/uc/intel_guc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c > index 8f8182bf7c11..490d66712afc 100644 > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c > @@ -403,6 +403,10 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request, u32 len, > int i; > int ret; > > + ret = i915_inject_probe_error(i915, -ENXIO); > + if (ret) > + return ret; > + > GEM_BUG_ON(!len); > GEM_BUG_ON(len > guc->send_regs.count); > > -- > 2.25.1 >
