Re: [PATCH 1/3] drm/i915/csr: s/DRM_ERROR/drm_err

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On Wed, 28 Apr 2021, Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx> wrote:
> Use new format of debug messages across intel_csr.
>
> While at it, change some function definitions which now
> need dev_priv for drm_err and drm_info etc.
>
> Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> Suggested-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_csr.c | 44 +++++++++++++-----------
>  1 file changed, 23 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_csr.c b/drivers/gpu/drm/i915/display/intel_csr.c
> index 26a922d34263..bf60c3ffdf5d 100644
> --- a/drivers/gpu/drm/i915/display/intel_csr.c
> +++ b/drivers/gpu/drm/i915/display/intel_csr.c
> @@ -392,10 +392,11 @@ static u32 find_dmc_fw_offset(const struct intel_fw_info *fw_info,
>  	return dmc_offset;
>  }
>  
> -static u32 parse_csr_fw_dmc(struct intel_csr *csr,
> +static u32 parse_csr_fw_dmc(struct drm_i915_private *dev_priv,

All new struct drm_i915_private * should be named i915, not dev_priv.

>  			    const struct intel_dmc_header_base *dmc_header,
>  			    size_t rem_size)
>  {
> +	struct intel_csr *csr = &dev_priv->csr;

You could also use container_of() to get from the csr to the i915
pointer. No need to add or change params.

>  	unsigned int header_len_bytes, dmc_header_size, payload_size, i;
>  	const u32 *mmioaddr, *mmiodata;
>  	u32 mmio_count, mmio_count_max;
> @@ -440,27 +441,27 @@ static u32 parse_csr_fw_dmc(struct intel_csr *csr,
>  		header_len_bytes = dmc_header->header_len;
>  		dmc_header_size = sizeof(*v1);
>  	} else {
> -		DRM_ERROR("Unknown DMC fw header version: %u\n",
> +		drm_err(&dev_priv->drm, "Unknown DMC fw header version: %u\n",
>  			  dmc_header->header_ver);

Please fix indentation. Same for all changes below.

>  		return 0;
>  	}
>  
>  	if (header_len_bytes != dmc_header_size) {
> -		DRM_ERROR("DMC firmware has wrong dmc header length "
> +		drm_err(&dev_priv->drm, "DMC firmware has wrong dmc header length "
>  			  "(%u bytes)\n", header_len_bytes);
>  		return 0;
>  	}
>  
>  	/* Cache the dmc header info. */
>  	if (mmio_count > mmio_count_max) {
> -		DRM_ERROR("DMC firmware has wrong mmio count %u\n", mmio_count);
> +		drm_err(&dev_priv->drm, "DMC firmware has wrong mmio count %u\n", mmio_count);
>  		return 0;
>  	}
>  
>  	for (i = 0; i < mmio_count; i++) {
>  		if (mmioaddr[i] < CSR_MMIO_START_RANGE ||
>  		    mmioaddr[i] > CSR_MMIO_END_RANGE) {
> -			DRM_ERROR("DMC firmware has wrong mmio address 0x%x\n",
> +			drm_err(&dev_priv->drm, "DMC firmware has wrong mmio address 0x%x\n",
>  				  mmioaddr[i]);
>  			return 0;
>  		}
> @@ -477,14 +478,14 @@ static u32 parse_csr_fw_dmc(struct intel_csr *csr,
>  		goto error_truncated;
>  
>  	if (payload_size > csr->max_fw_size) {
> -		DRM_ERROR("DMC FW too big (%u bytes)\n", payload_size);
> +		drm_err(&dev_priv->drm, "DMC FW too big (%u bytes)\n", payload_size);
>  		return 0;
>  	}
>  	csr->dmc_fw_size = dmc_header->fw_size;
>  
>  	csr->dmc_payload = kmalloc(payload_size, GFP_KERNEL);
>  	if (!csr->dmc_payload) {
> -		DRM_ERROR("Memory allocation failed for dmc payload\n");
> +		drm_err(&dev_priv->drm, "Memory allocation failed for dmc payload\n");
>  		return 0;
>  	}
>  
> @@ -494,12 +495,12 @@ static u32 parse_csr_fw_dmc(struct intel_csr *csr,
>  	return header_len_bytes + payload_size;
>  
>  error_truncated:
> -	DRM_ERROR("Truncated DMC firmware, refusing.\n");
> +	drm_err(&dev_priv->drm, "Truncated DMC firmware, refusing.\n");
>  	return 0;
>  }
>  
>  static u32
> -parse_csr_fw_package(struct intel_csr *csr,
> +parse_csr_fw_package(struct drm_i915_private *dev_priv,
>  		     const struct intel_package_header *package_header,
>  		     const struct stepping_info *si,
>  		     size_t rem_size)
> @@ -516,7 +517,7 @@ parse_csr_fw_package(struct intel_csr *csr,
>  	} else if (package_header->header_ver == 2) {
>  		max_entries = PACKAGE_V2_MAX_FW_INFO_ENTRIES;
>  	} else {
> -		DRM_ERROR("DMC firmware has unknown header version %u\n",
> +		drm_err(&dev_priv->drm, "DMC firmware has unknown header version %u\n",
>  			  package_header->header_ver);
>  		return 0;
>  	}
> @@ -530,7 +531,7 @@ parse_csr_fw_package(struct intel_csr *csr,
>  		goto error_truncated;
>  
>  	if (package_header->header_len * 4 != package_size) {
> -		DRM_ERROR("DMC firmware has wrong package header length "
> +		drm_err(&dev_priv->drm, "DMC firmware has wrong package header length "
>  			  "(%u bytes)\n", package_size);
>  		return 0;
>  	}
> @@ -544,7 +545,7 @@ parse_csr_fw_package(struct intel_csr *csr,
>  	dmc_offset = find_dmc_fw_offset(fw_info, num_entries, si,
>  					package_header->header_ver);
>  	if (dmc_offset == CSR_DEFAULT_FW_OFFSET) {
> -		DRM_ERROR("DMC firmware not supported for %c stepping\n",
> +		drm_err(&dev_priv->drm, "DMC firmware not supported for %c stepping\n",
>  			  si->stepping);
>  		return 0;
>  	}
> @@ -553,23 +554,25 @@ parse_csr_fw_package(struct intel_csr *csr,
>  	return package_size + dmc_offset * 4;
>  
>  error_truncated:
> -	DRM_ERROR("Truncated DMC firmware, refusing.\n");
> +	drm_err(&dev_priv->drm, "Truncated DMC firmware, refusing.\n");
>  	return 0;
>  }
>  
>  /* Return number of bytes parsed or 0 on error */
> -static u32 parse_csr_fw_css(struct intel_csr *csr,
> +static u32 parse_csr_fw_css(struct drm_i915_private *dev_priv,
>  			    struct intel_css_header *css_header,
>  			    size_t rem_size)
>  {
> +	struct intel_csr *csr = &dev_priv->csr;
> +
>  	if (rem_size < sizeof(struct intel_css_header)) {
> -		DRM_ERROR("Truncated DMC firmware, refusing.\n");
> +		drm_err(&dev_priv->drm, "Truncated DMC firmware, refusing.\n");
>  		return 0;
>  	}
>  
>  	if (sizeof(struct intel_css_header) !=
>  	    (css_header->header_len * 4)) {
> -		DRM_ERROR("DMC firmware has wrong CSS header length "
> +		drm_err(&dev_priv->drm, "DMC firmware has wrong CSS header length "
>  			  "(%u bytes)\n",
>  			  (css_header->header_len * 4));
>  		return 0;
> @@ -577,7 +580,7 @@ static u32 parse_csr_fw_css(struct intel_csr *csr,
>  
>  	if (csr->required_version &&
>  	    css_header->version != csr->required_version) {
> -		DRM_INFO("Refusing to load DMC firmware v%u.%u,"
> +		drm_info(&dev_priv->drm, "Refusing to load DMC firmware v%u.%u,"
>  			 " please use v%u.%u\n",
>  			 CSR_VERSION_MAJOR(css_header->version),
>  			 CSR_VERSION_MINOR(css_header->version),
> @@ -597,7 +600,6 @@ static void parse_csr_fw(struct drm_i915_private *dev_priv,
>  	struct intel_css_header *css_header;
>  	struct intel_package_header *package_header;
>  	struct intel_dmc_header_base *dmc_header;
> -	struct intel_csr *csr = &dev_priv->csr;
>  	const struct stepping_info *si = intel_get_stepping_info(dev_priv);
>  	u32 readcount = 0;
>  	u32 r;
> @@ -607,7 +609,7 @@ static void parse_csr_fw(struct drm_i915_private *dev_priv,
>  
>  	/* Extract CSS Header information */
>  	css_header = (struct intel_css_header *)fw->data;
> -	r = parse_csr_fw_css(csr, css_header, fw->size);
> +	r = parse_csr_fw_css(dev_priv, css_header, fw->size);
>  	if (!r)
>  		return;
>  
> @@ -615,7 +617,7 @@ static void parse_csr_fw(struct drm_i915_private *dev_priv,
>  
>  	/* Extract Package Header information */
>  	package_header = (struct intel_package_header *)&fw->data[readcount];
> -	r = parse_csr_fw_package(csr, package_header, si, fw->size - readcount);
> +	r = parse_csr_fw_package(dev_priv, package_header, si, fw->size - readcount);
>  	if (!r)
>  		return;
>  
> @@ -623,7 +625,7 @@ static void parse_csr_fw(struct drm_i915_private *dev_priv,
>  
>  	/* Extract dmc_header information */
>  	dmc_header = (struct intel_dmc_header_base *)&fw->data[readcount];
> -	parse_csr_fw_dmc(csr, dmc_header, fw->size - readcount);
> +	parse_csr_fw_dmc(dev_priv, dmc_header, fw->size - readcount);
>  }
>  
>  static void intel_csr_runtime_pm_get(struct drm_i915_private *dev_priv)

-- 
Jani Nikula, Intel Open Source Graphics Center
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