Re: [PATCH 1/2] i915/perf: Replace DRM_DEBUG with driver specific drm_dbg call

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On 07/07/2022 22:30, Nerlige Ramappa, Umesh wrote:
DRM_DEBUG is not the right debug call to use in i915 OA, replace it with
driver specific drm_dbg() call (Matt).

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
---
  drivers/gpu/drm/i915/i915_perf.c | 151 ++++++++++++++++++++-----------
  1 file changed, 100 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 1577ab6754db..b3beb89884e0 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -885,8 +885,9 @@ static int gen8_oa_read(struct i915_perf_stream *stream,
  		if (ret)
  			return ret;
- DRM_DEBUG("OA buffer overflow (exponent = %d): force restart\n",
-			  stream->period_exponent);
+		drm_dbg(&stream->perf->i915->drm,
+			"OA buffer overflow (exponent = %d): force restart\n",
+			stream->period_exponent);
stream->perf->ops.oa_disable(stream);
  		stream->perf->ops.oa_enable(stream);
@@ -1108,8 +1109,9 @@ static int gen7_oa_read(struct i915_perf_stream *stream,
  		if (ret)
  			return ret;
- DRM_DEBUG("OA buffer overflow (exponent = %d): force restart\n",
-			  stream->period_exponent);
+		drm_dbg(&stream->perf->i915->drm,
+			"OA buffer overflow (exponent = %d): force restart\n",
+			stream->period_exponent);
stream->perf->ops.oa_disable(stream);
  		stream->perf->ops.oa_enable(stream);
@@ -2863,7 +2865,8 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
  	int ret;
if (!props->engine) {
-		DRM_DEBUG("OA engine not specified\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"OA engine not specified\n");
  		return -EINVAL;
  	}
@@ -2873,18 +2876,21 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
  	 * IDs
  	 */
  	if (!perf->metrics_kobj) {
-		DRM_DEBUG("OA metrics weren't advertised via sysfs\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"OA metrics weren't advertised via sysfs\n");
  		return -EINVAL;
  	}
if (!(props->sample_flags & SAMPLE_OA_REPORT) &&
  	    (GRAPHICS_VER(perf->i915) < 12 || !stream->ctx)) {
-		DRM_DEBUG("Only OA report sampling supported\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"Only OA report sampling supported\n");
  		return -EINVAL;
  	}
if (!perf->ops.enable_metric_set) {
-		DRM_DEBUG("OA unit not supported\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"OA unit not supported\n");
  		return -ENODEV;
  	}
@@ -2894,12 +2900,14 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
  	 * we currently only allow exclusive access
  	 */
  	if (perf->exclusive_stream) {
-		DRM_DEBUG("OA unit already in use\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"OA unit already in use\n");
  		return -EBUSY;
  	}
if (!props->oa_format) {
-		DRM_DEBUG("OA report format not specified\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"OA report format not specified\n");
  		return -EINVAL;
  	}
@@ -2929,20 +2937,23 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
  	if (stream->ctx) {
  		ret = oa_get_render_ctx_id(stream);
  		if (ret) {
-			DRM_DEBUG("Invalid context id to filter with\n");
+			drm_dbg(&stream->perf->i915->drm,
+				"Invalid context id to filter with\n");
  			return ret;
  		}
  	}
ret = alloc_noa_wait(stream);
  	if (ret) {
-		DRM_DEBUG("Unable to allocate NOA wait batch buffer\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"Unable to allocate NOA wait batch buffer\n");
  		goto err_noa_wait_alloc;
  	}
stream->oa_config = i915_perf_get_oa_config(perf, props->metrics_set);
  	if (!stream->oa_config) {
-		DRM_DEBUG("Invalid OA config id=%i\n", props->metrics_set);
+		drm_dbg(&stream->perf->i915->drm,
+			"Invalid OA config id=%i\n", props->metrics_set);
  		ret = -EINVAL;
  		goto err_config;
  	}
@@ -2973,11 +2984,13 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
ret = i915_perf_stream_enable_sync(stream);
  	if (ret) {
-		DRM_DEBUG("Unable to enable metric set\n");
+		drm_dbg(&stream->perf->i915->drm,
+			"Unable to enable metric set\n");
  		goto err_enable;
  	}
- DRM_DEBUG("opening stream oa config uuid=%s\n",
+	drm_dbg(&stream->perf->i915->drm,
+		"opening stream oa config uuid=%s\n",
  		  stream->oa_config->uuid);
hrtimer_init(&stream->poll_check_timer,
@@ -3429,7 +3442,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
specific_ctx = i915_gem_context_lookup(file_priv, ctx_handle);
  		if (IS_ERR(specific_ctx)) {
-			DRM_DEBUG("Failed to look up context with ID %u for opening perf stream\n",
+			drm_dbg(&perf->i915->drm,
+				"Failed to look up context with ID %u for opening perf stream\n",
  				  ctx_handle);
  			ret = PTR_ERR(specific_ctx);
  			goto err;
@@ -3463,7 +3477,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
if (props->hold_preemption) {
  		if (!props->single_context) {
-			DRM_DEBUG("preemption disable with no context\n");
+			drm_dbg(&perf->i915->drm,
+				"preemption disable with no context\n");
  			ret = -EINVAL;
  			goto err;
  		}
@@ -3485,7 +3500,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
  	 */
  	if (privileged_op &&
  	    i915_perf_stream_paranoid && !perfmon_capable()) {
-		DRM_DEBUG("Insufficient privileges to open i915 perf stream\n");
+		drm_dbg(&perf->i915->drm,
+			"Insufficient privileges to open i915 perf stream\n");
  		ret = -EACCES;
  		goto err_ctx;
  	}
@@ -3592,7 +3608,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  	props->poll_oa_period = DEFAULT_POLL_PERIOD_NS;
if (!n_props) {
-		DRM_DEBUG("No i915 perf properties given\n");
+		drm_dbg(&perf->i915->drm,
+			"No i915 perf properties given\n");
  		return -EINVAL;
  	}
@@ -3601,7 +3618,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  						 I915_ENGINE_CLASS_RENDER,
  						 0);
  	if (!props->engine) {
-		DRM_DEBUG("No RENDER-capable engines\n");
+		drm_dbg(&perf->i915->drm,
+			"No RENDER-capable engines\n");
  		return -EINVAL;
  	}
@@ -3612,7 +3630,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  	 * from userspace.
  	 */
  	if (n_props >= DRM_I915_PERF_PROP_MAX) {
-		DRM_DEBUG("More i915 perf properties specified than exist\n");
+		drm_dbg(&perf->i915->drm,
+			"More i915 perf properties specified than exist\n");
  		return -EINVAL;
  	}
@@ -3629,7 +3648,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  			return ret;
if (id == 0 || id >= DRM_I915_PERF_PROP_MAX) {
-			DRM_DEBUG("Unknown i915 perf property ID\n");
+			drm_dbg(&perf->i915->drm,
+				"Unknown i915 perf property ID\n");
  			return -EINVAL;
  		}
@@ -3644,19 +3664,22 @@ static int read_properties_unlocked(struct i915_perf *perf,
  			break;
  		case DRM_I915_PERF_PROP_OA_METRICS_SET:
  			if (value == 0) {
-				DRM_DEBUG("Unknown OA metric set ID\n");
+				drm_dbg(&perf->i915->drm,
+					"Unknown OA metric set ID\n");
  				return -EINVAL;
  			}
  			props->metrics_set = value;
  			break;
  		case DRM_I915_PERF_PROP_OA_FORMAT:
  			if (value == 0 || value >= I915_OA_FORMAT_MAX) {
-				DRM_DEBUG("Out-of-range OA report format %llu\n",
+				drm_dbg(&perf->i915->drm,
+					"Out-of-range OA report format %llu\n",
  					  value);
  				return -EINVAL;
  			}
  			if (!oa_format_valid(perf, value)) {
-				DRM_DEBUG("Unsupported OA report format %llu\n",
+				drm_dbg(&perf->i915->drm,
+					"Unsupported OA report format %llu\n",
  					  value);
  				return -EINVAL;
  			}
@@ -3664,7 +3687,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  			break;
  		case DRM_I915_PERF_PROP_OA_EXPONENT:
  			if (value > OA_EXPONENT_MAX) {
-				DRM_DEBUG("OA timer exponent too high (> %u)\n",
+				drm_dbg(&perf->i915->drm,
+					"OA timer exponent too high (> %u)\n",
  					 OA_EXPONENT_MAX);
  				return -EINVAL;
  			}
@@ -3692,7 +3716,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  				oa_freq_hz = 0;
if (oa_freq_hz > i915_oa_max_sample_rate && !perfmon_capable()) {
-				DRM_DEBUG("OA exponent would exceed the max sampling frequency (sysctl dev.i915.oa_max_sample_rate) %uHz without CAP_PERFMON or CAP_SYS_ADMIN privileges\n",
+				drm_dbg(&perf->i915->drm,
+					"OA exponent would exceed the max sampling frequency (sysctl dev.i915.oa_max_sample_rate) %uHz without CAP_PERFMON or CAP_SYS_ADMIN privileges\n",
  					  i915_oa_max_sample_rate);
  				return -EACCES;
  			}
@@ -3709,13 +3734,15 @@ static int read_properties_unlocked(struct i915_perf *perf,
  			if (copy_from_user(&user_sseu,
  					   u64_to_user_ptr(value),
  					   sizeof(user_sseu))) {
-				DRM_DEBUG("Unable to copy global sseu parameter\n");
+				drm_dbg(&perf->i915->drm,
+					"Unable to copy global sseu parameter\n");
  				return -EFAULT;
  			}
ret = get_sseu_config(&props->sseu, props->engine, &user_sseu);
  			if (ret) {
-				DRM_DEBUG("Invalid SSEU configuration\n");
+				drm_dbg(&perf->i915->drm,
+					"Invalid SSEU configuration\n");
  				return ret;
  			}
  			props->has_sseu = true;
@@ -3723,7 +3750,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
  		}
  		case DRM_I915_PERF_PROP_POLL_OA_PERIOD:
  			if (value < 100000 /* 100us */) {
-				DRM_DEBUG("OA availability timer too small (%lluns < 100us)\n",
+				drm_dbg(&perf->i915->drm,
+					"OA availability timer too small (%lluns < 100us)\n",
  					  value);
  				return -EINVAL;
  			}
@@ -3774,7 +3802,8 @@ int i915_perf_open_ioctl(struct drm_device *dev, void *data,
  	int ret;
if (!perf->i915) {
-		DRM_DEBUG("i915 perf interface not available for this system\n");
+		drm_dbg(&perf->i915->drm,
+			"i915 perf interface not available for this system\n");
  		return -ENOTSUPP;
  	}
@@ -3782,7 +3811,8 @@ int i915_perf_open_ioctl(struct drm_device *dev, void *data,
  			   I915_PERF_FLAG_FD_NONBLOCK |
  			   I915_PERF_FLAG_DISABLED;
  	if (param->flags & ~known_open_flags) {
-		DRM_DEBUG("Unknown drm_i915_perf_open_param flag\n");
+		drm_dbg(&perf->i915->drm,
+			"Unknown drm_i915_perf_open_param flag\n");
  		return -EINVAL;
  	}
@@ -4028,7 +4058,8 @@ static struct i915_oa_reg *alloc_oa_regs(struct i915_perf *perf,
  			goto addr_err;
if (!is_valid(perf, addr)) {
-			DRM_DEBUG("Invalid oa_reg address: %X\n", addr);
+			drm_dbg(&perf->i915->drm,
+				"Invalid oa_reg address: %X\n", addr);
  			err = -EINVAL;
  			goto addr_err;
  		}
@@ -4102,30 +4133,35 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  	int err, id;
if (!perf->i915) {
-		DRM_DEBUG("i915 perf interface not available for this system\n");
+		drm_dbg(&perf->i915->drm,
+			"i915 perf interface not available for this system\n");
  		return -ENOTSUPP;
  	}
if (!perf->metrics_kobj) {
-		DRM_DEBUG("OA metrics weren't advertised via sysfs\n");
+		drm_dbg(&perf->i915->drm,
+			"OA metrics weren't advertised via sysfs\n");
  		return -EINVAL;
  	}
if (i915_perf_stream_paranoid && !perfmon_capable()) {
-		DRM_DEBUG("Insufficient privileges to add i915 OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Insufficient privileges to add i915 OA config\n");
  		return -EACCES;
  	}
if ((!args->mux_regs_ptr || !args->n_mux_regs) &&
  	    (!args->boolean_regs_ptr || !args->n_boolean_regs) &&
  	    (!args->flex_regs_ptr || !args->n_flex_regs)) {
-		DRM_DEBUG("No OA registers given\n");
+		drm_dbg(&perf->i915->drm,
+			"No OA registers given\n");
  		return -EINVAL;
  	}
oa_config = kzalloc(sizeof(*oa_config), GFP_KERNEL);
  	if (!oa_config) {
-		DRM_DEBUG("Failed to allocate memory for the OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Failed to allocate memory for the OA config\n");
  		return -ENOMEM;
  	}
@@ -4133,7 +4169,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  	kref_init(&oa_config->ref);
if (!uuid_is_valid(args->uuid)) {
-		DRM_DEBUG("Invalid uuid format for OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Invalid uuid format for OA config\n");
  		err = -EINVAL;
  		goto reg_err;
  	}
@@ -4150,7 +4187,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  			     args->n_mux_regs);
if (IS_ERR(regs)) {
-		DRM_DEBUG("Failed to create OA config for mux_regs\n");
+		drm_dbg(&perf->i915->drm,
+			"Failed to create OA config for mux_regs\n");
  		err = PTR_ERR(regs);
  		goto reg_err;
  	}
@@ -4163,7 +4201,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  			     args->n_boolean_regs);
if (IS_ERR(regs)) {
-		DRM_DEBUG("Failed to create OA config for b_counter_regs\n");
+		drm_dbg(&perf->i915->drm,
+			"Failed to create OA config for b_counter_regs\n");
  		err = PTR_ERR(regs);
  		goto reg_err;
  	}
@@ -4182,7 +4221,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  				     args->n_flex_regs);
if (IS_ERR(regs)) {
-			DRM_DEBUG("Failed to create OA config for flex_regs\n");
+			drm_dbg(&perf->i915->drm,
+				"Failed to create OA config for flex_regs\n");
  			err = PTR_ERR(regs);
  			goto reg_err;
  		}
@@ -4198,7 +4238,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  	 */
  	idr_for_each_entry(&perf->metrics_idr, tmp, id) {
  		if (!strcmp(tmp->uuid, oa_config->uuid)) {
-			DRM_DEBUG("OA config already exists with this uuid\n");
+			drm_dbg(&perf->i915->drm,
+				"OA config already exists with this uuid\n");
  			err = -EADDRINUSE;
  			goto sysfs_err;
  		}
@@ -4206,7 +4247,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
err = create_dynamic_oa_sysfs_entry(perf, oa_config);
  	if (err) {
-		DRM_DEBUG("Failed to create sysfs entry for OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Failed to create sysfs entry for OA config\n");
  		goto sysfs_err;
  	}
@@ -4215,14 +4257,16 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  				  oa_config, 2,
  				  0, GFP_KERNEL);
  	if (oa_config->id < 0) {
-		DRM_DEBUG("Failed to create sysfs entry for OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Failed to create sysfs entry for OA config\n");
  		err = oa_config->id;
  		goto sysfs_err;
  	}
mutex_unlock(&perf->metrics_lock); - DRM_DEBUG("Added config %s id=%i\n", oa_config->uuid, oa_config->id);
+	drm_dbg(&perf->i915->drm,
+		"Added config %s id=%i\n", oa_config->uuid, oa_config->id);
return oa_config->id; @@ -4230,7 +4274,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
  	mutex_unlock(&perf->metrics_lock);
  reg_err:
  	i915_oa_config_put(oa_config);
-	DRM_DEBUG("Failed to add new OA config\n");
+	drm_dbg(&perf->i915->drm,
+		"Failed to add new OA config\n");
  	return err;
  }
@@ -4254,12 +4299,14 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
  	int ret;
if (!perf->i915) {
-		DRM_DEBUG("i915 perf interface not available for this system\n");
+		drm_dbg(&perf->i915->drm,
+			"i915 perf interface not available for this system\n");
  		return -ENOTSUPP;
  	}
if (i915_perf_stream_paranoid && !perfmon_capable()) {
-		DRM_DEBUG("Insufficient privileges to remove i915 OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Insufficient privileges to remove i915 OA config\n");
  		return -EACCES;
  	}
@@ -4269,7 +4316,8 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data, oa_config = idr_find(&perf->metrics_idr, *arg);
  	if (!oa_config) {
-		DRM_DEBUG("Failed to remove unknown OA config\n");
+		drm_dbg(&perf->i915->drm,
+			"Failed to remove unknown OA config\n");
  		ret = -ENOENT;
  		goto err_unlock;
  	}
@@ -4282,7 +4330,8 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
mutex_unlock(&perf->metrics_lock); - DRM_DEBUG("Removed config %s id=%i\n", oa_config->uuid, oa_config->id);
+	drm_dbg(&perf->i915->drm,
+		"Removed config %s id=%i\n", oa_config->uuid, oa_config->id);
i915_oa_config_put(oa_config);





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