From 64e47648b7c6363ddc65904b797ca4d6874f80a5 Mon Sep 17 00:00:00 2001
From: John Harrison <John.C.Harrison@Intel.com>
Date: Thu, 8 Jul 2021 09:20:55 -0700
Subject: drm/i915/guc: Module load failure test for CT buffer creation
Git-commit: 3101e9952bd6fbe9b2ba8bf46d153dcfad77e579
Patch-mainline: v5.15-rc1
References: jsc#SLE-22601
Add several module failure load inject points in the CT buffer creation
code path.
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210708162055.129996-8-matthew.brost@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 ad33708c2818..83ec60ea3f89 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -175,6 +175,10 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 type,
{
int err;
+ err = i915_inject_probe_error(guc_to_gt(ct_to_guc(ct))->i915, -ENXIO);
+ if (unlikely(err))
+ return err;
+
err = guc_action_register_ct_buffer(ct_to_guc(ct), type,
desc_addr, buff_addr, size);
if (unlikely(err))
@@ -226,6 +230,10 @@ int intel_guc_ct_init(struct intel_guc_ct *ct)
u32 *cmds;
int err;
+ err = i915_inject_probe_error(guc_to_gt(guc)->i915, -ENXIO);
+ if (err)
+ return err;
+
GEM_BUG_ON(ct->vma);
blob_size = 2 * CTB_DESC_SIZE + CTB_H2G_BUFFER_SIZE + CTB_G2H_BUFFER_SIZE;
--
2.33.1