Some downgraded from DRM_ERROR() to DRM_WARN() or DRM_NOTE(), a few upgraded from DRM_INFO() to DRM_NOTE() or DRM_WARN(), and one eliminated completely. A typical failure mode might now look like this in the dmesg log:
[drm] Failed to fetch valid GuC firmware from i915/skl_guc_ver6_1.bin (error -2) [drm] GuC firmware load failed: -5 [drm] Falling back from GuC submission to execlist mode
which provides sufficient notice that * there is a problem with the firmware binary * and consequently loading the GuC has failed * and so we have selected the fallback (execlist) mode while not cluttering the log with developer-only details.
v2: different permutation of levels :)
Signed-off-by: Dave Gordon david.s.gordon@intel.com --- drivers/gpu/drm/i915/intel_guc_loader.c | 34 ++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index 605c696..a2f4fa4 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -140,12 +140,14 @@ static u32 get_gttype(struct drm_i915_private *dev_priv)
static u32 get_core_family(struct drm_i915_private *dev_priv) { - switch (INTEL_INFO(dev_priv)->gen) { + u32 gen = INTEL_GEN(dev_priv); + + switch (gen) { case 9: return GFXCORE_FAMILY_GEN9;
default: - DRM_ERROR("GUC: unsupported core family\n"); + DRM_WARN("GEN%d does not support GuC operation\n", gen); return GFXCORE_FAMILY_UNKNOWN; } } @@ -433,7 +435,7 @@ int intel_guc_setup(struct drm_device *dev) goto fail; } else if (*fw_path == '\0') { /* Device has a GuC but we don't know what f/w to load? */ - DRM_INFO("No GuC firmware known for this platform\n"); + DRM_WARN("No GuC firmware known for this platform\n"); err = -ENODEV; goto fail; } @@ -471,10 +473,8 @@ int intel_guc_setup(struct drm_device *dev) * that the state and timing are fairly predictable */ err = i915_reset_guc(dev_priv); - if (err) { - DRM_ERROR("GuC reset failed: %d\n", err); + if (err) goto fail; - }
err = guc_ucode_xfer(dev_priv); if (!err) @@ -532,15 +532,15 @@ int intel_guc_setup(struct drm_device *dev) else if (err == 0) DRM_INFO("GuC firmware load skipped\n"); else if (ret != -EIO) - DRM_INFO("GuC firmware load failed: %d\n", err); + DRM_NOTE("GuC firmware load failed: %d\n", err); else - DRM_ERROR("GuC firmware load failed: %d\n", err); + DRM_WARN("GuC firmware load failed: %d\n", err);
if (i915.enable_guc_submission) { if (fw_path == NULL) DRM_INFO("GuC submission without firmware not supported\n"); if (ret == 0) - DRM_INFO("Falling back from GuC submission to execlist mode\n"); + DRM_NOTE("Falling back from GuC submission to execlist mode\n"); else DRM_ERROR("GuC init failed: %d\n", ret); } @@ -571,7 +571,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
/* Check the size of the blob before examining buffer contents */ if (fw->size < sizeof(struct guc_css_header)) { - DRM_ERROR("Firmware header is missing\n"); + DRM_NOTE("Firmware header is missing\n"); goto fail; }
@@ -583,7 +583,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw) css->key_size_dw - css->exponent_size_dw) * sizeof(u32);
if (guc_fw->header_size != sizeof(struct guc_css_header)) { - DRM_ERROR("CSS header definition mismatch\n"); + DRM_NOTE("CSS header definition mismatch\n"); goto fail; }
@@ -593,7 +593,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
/* now RSA */ if (css->key_size_dw != UOS_RSA_SCRATCH_MAX_COUNT) { - DRM_ERROR("RSA key size is bad\n"); + DRM_NOTE("RSA key size is bad\n"); goto fail; } guc_fw->rsa_offset = guc_fw->ucode_offset + guc_fw->ucode_size; @@ -602,14 +602,14 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw) /* At least, it should have header, uCode and RSA. Size of all three. */ size = guc_fw->header_size + guc_fw->ucode_size + guc_fw->rsa_size; if (fw->size < size) { - DRM_ERROR("Missing firmware components\n"); + DRM_NOTE("Missing firmware components\n"); goto fail; }
/* Header and uCode will be loaded to WOPCM. Size of the two. */ size = guc_fw->header_size + guc_fw->ucode_size; if (size > guc_wopcm_size(to_i915(dev))) { - DRM_ERROR("Firmware is too large to fit in WOPCM\n"); + DRM_NOTE("Firmware is too large to fit in WOPCM\n"); goto fail; }
@@ -624,7 +624,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
if (guc_fw->guc_fw_major_found != guc_fw->guc_fw_major_wanted || guc_fw->guc_fw_minor_found < guc_fw->guc_fw_minor_wanted) { - DRM_ERROR("GuC firmware version %d.%d, required %d.%d\n", + DRM_NOTE("GuC firmware version %d.%d, required %d.%d\n", guc_fw->guc_fw_major_found, guc_fw->guc_fw_minor_found, guc_fw->guc_fw_major_wanted, guc_fw->guc_fw_minor_wanted); err = -ENOEXEC; @@ -654,10 +654,10 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw) return;
fail: + DRM_WARN("Failed to fetch valid GuC firmware from %s (error %d)\n", + guc_fw->guc_fw_path, err); DRM_DEBUG_DRIVER("GuC fw fetch status FAIL; err %d, fw %p, obj %p\n", err, fw, guc_fw->guc_fw_obj); - DRM_ERROR("Failed to fetch GuC firmware from %s (error %d)\n", - guc_fw->guc_fw_path, err);
mutex_lock(&dev->struct_mutex); obj = guc_fw->guc_fw_obj;