Re: [PATCH 4/5] drm/i915/perf: conversion to struct drm_device based logging macros.

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On Fri, 31 Jan 2020, Wambui Karuga <wambui.karugax@xxxxxxxxx> wrote:
> Manual conversion of instances of printk based drm logging macros to the
> struct drm_device based logging macros in i915/i915_perf.c.
> Also involves extraction of the struct drm_i915_private device from
> various intel types for use in the macros.
>
> Instances of the DRM_DEBUG printk macro were not converted due to the
> lack of an analogous struct drm_device based logging macro.

That's not true for this patch.

BR,
Jani.

>
> References: https://lists.freedesktop.org/archives/dri-devel/2020-January/253381.html
> Signed-off-by: Wambui Karuga <wambui.karugax@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/i915_perf.c | 143 ++++++++++++++++++++-----------
>  1 file changed, 91 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
> index b5249ee5bda6..53ba31278be7 100644
> --- a/drivers/gpu/drm/i915/i915_perf.c
> +++ b/drivers/gpu/drm/i915/i915_perf.c
> @@ -555,8 +555,9 @@ static bool oa_buffer_check_unlocked(struct i915_perf_stream *stream)
>  				aging_tail = hw_tail;
>  			stream->oa_buffer.aging_timestamp = now;
>  		} else {
> -			DRM_ERROR("Ignoring spurious out of range OA buffer tail pointer = %x\n",
> -				  hw_tail);
> +			drm_err(&stream->perf->i915->drm,
> +				"Ignoring spurious out of range OA buffer tail pointer = %x\n",
> +				hw_tail);
>  		}
>  	}
>  
> @@ -745,7 +746,8 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
>  		 */
>  		if (drm_WARN_ON(&uncore->i915->drm,
>  				(OA_BUFFER_SIZE - head) < report_size)) {
> -			DRM_ERROR("Spurious OA head ptr: non-integral report offset\n");
> +			drm_err(&uncore->i915->drm,
> +				"Spurious OA head ptr: non-integral report offset\n");
>  			break;
>  		}
>  
> @@ -926,8 +928,9 @@ 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);
> @@ -1041,7 +1044,8 @@ static int gen7_append_oa_reports(struct i915_perf_stream *stream,
>  		 */
>  		if (drm_WARN_ON(&uncore->i915->drm,
>  				(OA_BUFFER_SIZE - head) < report_size)) {
> -			DRM_ERROR("Spurious OA head ptr: non-integral report offset\n");
> +			drm_err(&uncore->i915->drm,
> +				"Spurious OA head ptr: non-integral report offset\n");
>  			break;
>  		}
>  
> @@ -1152,8 +1156,9 @@ 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);
> @@ -1339,9 +1344,10 @@ static int oa_get_render_ctx_id(struct i915_perf_stream *stream)
>  
>  	ce->tag = stream->specific_ctx_id;
>  
> -	DRM_DEBUG_DRIVER("filtering on ctx_id=0x%x ctx_id_mask=0x%x\n",
> -			 stream->specific_ctx_id,
> -			 stream->specific_ctx_id_mask);
> +	drm_dbg(&stream->perf->i915->drm,
> +		"filtering on ctx_id=0x%x ctx_id_mask=0x%x\n",
> +		stream->specific_ctx_id,
> +		stream->specific_ctx_id_mask);
>  
>  	return 0;
>  }
> @@ -2657,7 +2663,8 @@ static void gen7_oa_disable(struct i915_perf_stream *stream)
>  	if (intel_wait_for_register(uncore,
>  				    GEN7_OACONTROL, GEN7_OACONTROL_ENABLE, 0,
>  				    50))
> -		DRM_ERROR("wait for OA to be disabled timed out\n");
> +		drm_err(&stream->perf->i915->drm,
> +			"wait for OA to be disabled timed out\n");
>  }
>  
>  static void gen8_oa_disable(struct i915_perf_stream *stream)
> @@ -2668,7 +2675,8 @@ static void gen8_oa_disable(struct i915_perf_stream *stream)
>  	if (intel_wait_for_register(uncore,
>  				    GEN8_OACONTROL, GEN8_OA_COUNTER_ENABLE, 0,
>  				    50))
> -		DRM_ERROR("wait for OA to be disabled timed out\n");
> +		drm_err(&stream->perf->i915->drm,
> +			"wait for OA to be disabled timed out\n");
>  }
>  
>  static void gen12_oa_disable(struct i915_perf_stream *stream)
> @@ -2680,7 +2688,8 @@ static void gen12_oa_disable(struct i915_perf_stream *stream)
>  				    GEN12_OAG_OACONTROL,
>  				    GEN12_OAG_OACONTROL_OA_COUNTER_ENABLE, 0,
>  				    50))
> -		DRM_ERROR("wait for OA to be disabled timed out\n");
> +		drm_err(&stream->perf->i915->drm,
> +			"wait for OA to be disabled timed out\n");
>  }
>  
>  /**
> @@ -3347,8 +3356,9 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
>  
>  		specific_ctx = i915_gem_context_lookup(file_priv, ctx_handle);
>  		if (!specific_ctx) {
> -			DRM_DEBUG("Failed to look up context with ID %u for opening perf stream\n",
> -				  ctx_handle);
> +			drm_dbg(&specific_ctx->i915->drm,
> +				"Failed to look up context with ID %u for opening perf stream\n",
> +				ctx_handle);
>  			ret = -ENOENT;
>  			goto err;
>  		}
> @@ -3381,7 +3391,8 @@ 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;
>  		}
> @@ -3395,7 +3406,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
>  	 */
>  	if (privileged_op &&
>  	    i915_perf_stream_paranoid && !capable(CAP_SYS_ADMIN)) {
> -		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;
>  	}
> @@ -3487,7 +3499,7 @@ static int read_properties_unlocked(struct i915_perf *perf,
>  	memset(props, 0, sizeof(struct perf_open_properties));
>  
>  	if (!n_props) {
> -		DRM_DEBUG("No i915 perf properties given\n");
> +		drm_dbg(&perf->i915->drm, "No i915 perf properties given\n");
>  		return -EINVAL;
>  	}
>  
> @@ -3496,7 +3508,7 @@ 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;
>  	}
>  
> @@ -3507,7 +3519,8 @@ 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;
>  	}
>  
> @@ -3525,7 +3538,8 @@ 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;
>  		}
>  
> @@ -3540,28 +3554,32 @@ 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",
> -					  value);
> +				drm_dbg(&perf->i915->drm,
> +					"Out-of-range OA report format %llu\n",
> +					value);
>  				return -EINVAL;
>  			}
>  			if (!perf->oa_formats[value].size) {
> -				DRM_DEBUG("Unsupported OA report format %llu\n",
> -					  value);
> +				drm_dbg(&perf->i915->drm,
> +					"Unsupported OA report format %llu\n",
> +					value);
>  				return -EINVAL;
>  			}
>  			props->oa_format = value;
>  			break;
>  		case DRM_I915_PERF_PROP_OA_EXPONENT:
>  			if (value > OA_EXPONENT_MAX) {
> -				DRM_DEBUG("OA timer exponent too high (> %u)\n",
> -					 OA_EXPONENT_MAX);
> +				drm_dbg(&perf->i915->drm,
> +					"OA timer exponent too high (> %u)\n",
> +					OA_EXPONENT_MAX);
>  				return -EINVAL;
>  			}
>  
> @@ -3589,8 +3607,9 @@ static int read_properties_unlocked(struct i915_perf *perf,
>  
>  			if (oa_freq_hz > i915_oa_max_sample_rate &&
>  			    !capable(CAP_SYS_ADMIN)) {
> -				DRM_DEBUG("OA exponent would exceed the max sampling frequency (sysctl dev.i915.oa_max_sample_rate) %uHz without root privileges\n",
> -					  i915_oa_max_sample_rate);
> +				drm_dbg(&perf->i915->drm,
> +					"OA exponent would exceed the max sampling frequency (sysctl dev.i915.oa_max_sample_rate) %uHz without root privileges\n",
> +					i915_oa_max_sample_rate);
>  				return -EACCES;
>  			}
>  
> @@ -3645,7 +3664,8 @@ 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(&to_i915(dev)->drm,
> +			"i915 perf interface not available for this system\n");
>  		return -ENOTSUPP;
>  	}
>  
> @@ -3653,7 +3673,8 @@ 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;
>  	}
>  
> @@ -3927,7 +3948,8 @@ 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;
>  		}
> @@ -4001,30 +4023,35 @@ 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(&to_i915(dev)->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 && !capable(CAP_SYS_ADMIN)) {
> -		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;
>  	}
>  
> @@ -4032,7 +4059,8 @@ 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;
>  	}
> @@ -4049,7 +4077,8 @@ 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;
>  	}
> @@ -4062,7 +4091,8 @@ 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;
>  	}
> @@ -4081,7 +4111,8 @@ 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;
>  		}
> @@ -4097,7 +4128,8 @@ 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;
>  		}
> @@ -4105,7 +4137,8 @@ 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;
>  	}
>  
> @@ -4114,14 +4147,16 @@ 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;
>  
> @@ -4129,7 +4164,7 @@ 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;
>  }
>  
> @@ -4153,12 +4188,14 @@ 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(&to_i915(dev)->drm,
> +			"i915 perf interface not available for this system\n");
>  		return -ENOTSUPP;
>  	}
>  
>  	if (i915_perf_stream_paranoid && !capable(CAP_SYS_ADMIN)) {
> -		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;
>  	}
>  
> @@ -4168,7 +4205,8 @@ 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;
>  	}
> @@ -4181,7 +4219,8 @@ 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);

-- 
Jani Nikula, Intel Open Source Graphics Center
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