Inject probe errors into intel_uc_init_hw to make sure we
correctly handle any uC initialization failure.
To avoid complains from CI about injected errors use
i915_probe_error to lower message level.
v2: _sanitize instead _reset to correctly handle Gen9 retries
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> #v1
---
drivers/gpu/drm/i915/gt/uc/intel_huc.c | 4 ++++
drivers/gpu/drm/i915/gt/uc/intel_uc.c | 24 ++++++++++++++++++++----
drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 5 +++++
drivers/gpu/drm/i915/i915_gem.c | 2 +-
4 files changed, 30 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
index d642b167a389..2a30956dc37b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
@@ -139,6 +139,10 @@ int intel_huc_auth(struct intel_huc *huc)
GEM_BUG_ON(!intel_uc_fw_is_loaded(&huc->fw));
GEM_BUG_ON(intel_huc_is_authenticated(huc));
+ ret = i915_inject_load_error(gt->i915, -ENXIO);
+ if (ret)
+ goto fail;
+
ret = intel_guc_auth_huc(guc,
intel_guc_ggtt_offset(guc, huc->rsa_data));
if (ret) {
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
index d1b08b28b1ad..c4b015b0287e 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
@@ -41,6 +41,10 @@ static int __intel_uc_reset_hw(struct intel_uc *uc)
int ret;
u32 guc_status;
+ ret = i915_inject_load_error(gt->i915, -ENXIO);
+ if (ret)
+ return ret;
+
ret = intel_reset_guc(gt);
if (ret) {
DRM_ERROR("Failed to reset GuC, ret = %d\n", ret);
@@ -209,6 +213,10 @@ static int guc_enable_communication(struct intel_guc *guc)
GEM_BUG_ON(guc_communication_enabled(guc));
+ ret = i915_inject_load_error(i915, -ENXIO);
+ if (ret)
+ return ret;
+
ret = intel_guc_ct_enable(&guc->ct);
if (ret)
return ret;
@@ -340,7 +348,7 @@ void intel_uc_fini(struct intel_uc *uc)
intel_guc_fini(guc);
}
-static void __uc_sanitize(struct intel_uc *uc)
+static int __uc_sanitize(struct intel_uc *uc)
{
struct intel_guc *guc = &uc->guc;
struct intel_huc *huc = &uc->huc;
@@ -350,7 +358,7 @@ static void __uc_sanitize(struct intel_uc *uc)
intel_huc_sanitize(huc);
intel_guc_sanitize(guc);
- __intel_uc_reset_hw(uc);
+ return __intel_uc_reset_hw(uc);
}
void intel_uc_sanitize(struct intel_uc *uc)
@@ -378,6 +386,10 @@ static int uc_init_wopcm(struct intel_uc *uc)
GEM_BUG_ON(!(size & GUC_WOPCM_SIZE_MASK));
GEM_BUG_ON(size & ~GUC_WOPCM_SIZE_MASK);
+ err = i915_inject_load_error(gt->i915, -ENXIO);
+ if (err)
+ return err;
+
mask = GUC_WOPCM_SIZE_MASK | GUC_WOPCM_SIZE_LOCKED;
err = intel_uncore_write_and_verify(uncore, GUC_WOPCM_SIZE, size, mask,
size | GUC_WOPCM_SIZE_LOCKED);
@@ -434,7 +446,7 @@ int intel_uc_init_hw(struct intel_uc *uc)
* Always reset the GuC just before (re)loading, so
* that the state and timing are fairly predictable
*/
- ret = __intel_uc_reset_hw(uc);
+ ret = __uc_sanitize(uc);
if (ret)
goto err_out;
@@ -478,6 +490,10 @@ int intel_uc_init_hw(struct intel_uc *uc)
goto err_communication;
}
+ ret = i915_inject_load_error(i915, -ENXIO);
+ if (ret)
+ goto err_communication;
+
dev_info(i915->drm.dev, "GuC firmware version %u.%u\n",
guc->fw.major_ver_found, guc->fw.minor_ver_found);
dev_info(i915->drm.dev, "GuC submission %s\n",
@@ -504,7 +520,7 @@ int intel_uc_init_hw(struct intel_uc *uc)
if (GEM_WARN_ON(ret == -EIO))
ret = -EINVAL;
- dev_err(i915->drm.dev, "GuC initialization failed %d\n", ret);
+ i915_probe_error(i915, "GuC initialization failed %d\n", ret);
return ret;
}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index 650ad6037b74..d2ff70bef574 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -443,8 +443,13 @@ int intel_uc_fw_upload(struct intel_uc_fw *uc_fw, struct intel_gt *gt,
/* make sure the status was cleared the last time we reset the uc */
GEM_BUG_ON(intel_uc_fw_is_loaded(uc_fw));
+ err = i915_inject_load_error(gt->i915, -ENOEXEC);
+ if (err)
+ return err;
+
if (!intel_uc_fw_is_available(uc_fw))
return -ENOEXEC;
+
/* Call custom loader */
intel_uc_fw_ggtt_bind(uc_fw, gt);
err = uc_fw_xfer(uc_fw, gt, wopcm_offset, dma_flags);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 5e87acc4b770..2436cd598e6e 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1243,7 +1243,7 @@ int i915_gem_init_hw(struct drm_i915_private *i915)
/* We can't enable contexts until all firmware is loaded */
ret = intel_uc_init_hw(>->uc);
if (ret) {
- DRM_ERROR("Enabling uc failed (%d)\n", ret);
+ i915_probe_error(i915, "Enabling uc failed (%d)\n", ret);
goto out;
}
--
2.19.2
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