Re: [PATCH] drm/i915/uc: Fix table order verification to check all FW types

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On 11/22/2022 3:33 PM, John.C.Harrison@xxxxxxxxx wrote:
From: John Harrison <John.C.Harrison@xxxxxxxxx>

It was noticed that the table order verification step was only being
run once rather than once per firmware type. Fix that.

Note that the long term plan is to convert this code to be a mock
selftest. It is already only compiled in when selftests are enabled.
And the work involved in the conversion was estimated to be
non-trivial. So that conversion is currently low on the priority list.

Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>

Daniele

---
  drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 9 +++++----
  1 file changed, 5 insertions(+), 4 deletions(-)

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 0c80ba51a4bdc..31613c7e0838b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -238,7 +238,7 @@ __uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
  		[INTEL_UC_FW_TYPE_GUC] = { blobs_guc, ARRAY_SIZE(blobs_guc) },
  		[INTEL_UC_FW_TYPE_HUC] = { blobs_huc, ARRAY_SIZE(blobs_huc) },
  	};
-	static bool verified;
+	static bool verified[INTEL_UC_FW_NUM_TYPES];
  	const struct uc_fw_platform_requirement *fw_blobs;
  	enum intel_platform p = INTEL_INFO(i915)->platform;
  	u32 fw_count;
@@ -291,8 +291,8 @@ __uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
  	}
/* make sure the list is ordered as expected */
-	if (IS_ENABLED(CONFIG_DRM_I915_SELFTEST) && !verified) {
-		verified = true;
+	if (IS_ENABLED(CONFIG_DRM_I915_SELFTEST) && !verified[uc_fw->type]) {
+		verified[uc_fw->type] = true;
for (i = 1; i < fw_count; i++) {
  			/* Next platform is good: */
@@ -343,7 +343,8 @@ __uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
  				continue;
bad:
-			drm_err(&i915->drm, "Invalid FW blob order: %s r%u %s%d.%d.%d comes before %s r%u %s%d.%d.%d\n",
+			drm_err(&i915->drm, "Invalid %s blob order: %s r%u %s%d.%d.%d comes before %s r%u %s%d.%d.%d\n",
+				intel_uc_fw_type_repr(uc_fw->type),
  				intel_platform_name(fw_blobs[i - 1].p), fw_blobs[i - 1].rev,
  				fw_blobs[i - 1].blob.legacy ? "L" : "v",
  				fw_blobs[i - 1].blob.major,




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