[Intel-gfx] [PATCH 4/4] drm/i915/guc: Inject probe errors for CT send

Thanneeru Srinivasulu
2021-10-11T15:20:02Z

Inject probe errors -ENXIO, -EBUSY for CT send.

Signed-off-by: Thanneeru Srinivasulu <thanneeru.srinivasulu@intel.com>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
index 83764db0fd6d..8ffef3abd3da 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -765,6 +765,14 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
u32 status = ~0; /* undefined */
int ret;

+ ret = i915_inject_probe_error(ct_to_i915(ct), -ENXIO);
+ if (ret)
+ return ret;
+
+ ret = i915_inject_probe_error(ct_to_i915(ct), -EBUSY);
+ if (ret)
+ return ret;
+
if (unlikely(!ct->enabled)) {
struct intel_guc *guc = ct_to_guc(ct);
struct intel_uc *uc = container_of(guc, struct intel_uc, guc);
--
2.25.1