Re: [PATCH] drm/i915/huc: Update the construction of file path for HuC similar to that of GuC

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On Mon, Oct 31, 2016 at 03:24:53PM -0700, Anusha Srivatsa wrote:
> Update the file construction and specifying the required version
> similar to that of GuC.Add an extra field for the build number.
> Adopted the approach used in
> https://patchwork.freedesktop.org/patch/104355/ <Tvrtko Ursulin>
> 
> Cc: Jeff Mcgee <jeff.mcgee@xxxxxxxxx>
> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_huc_loader.c | 25 +++++++++++++++++++------
>  1 file changed, 19 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_huc_loader.c b/drivers/gpu/drm/i915/intel_huc_loader.c
> index 2f5d9d9..419caae 100644
> --- a/drivers/gpu/drm/i915/intel_huc_loader.c
> +++ b/drivers/gpu/drm/i915/intel_huc_loader.c
> @@ -39,11 +39,24 @@
>   *
>   * Note that HuC firmware loading must be done before GuC loading.
>   */
> +#define SKL_FW_MAJOR 01
> +#define SKL_FW_MINOR 07
> +#define SKL_BLD_NUM 1398
>  
> -#define I915_SKL_HUC_UCODE "i915/skl_huc_ver01_07_1398.bin"
> +#define BXT_FW_MAJOR 01
> +#define BXT_FW_MINOR 07
> +#define BXT_BLD_NUM 1398
> +
> +#define HUC_FW_PATH(platform, major, minor, bld_num) \
> +	"i915/" __stringify(platform) "_huc_ver" __stringify(major) "_" \
> +	__stringify(minor) "_" __stringify(bld_num) ".bin"
> +
> +#define I915_SKL_HUC_UCODE HUC_FW_PATH(skl, SKL_FW_MAJOR, \
> +	SKL_FW_MINOR, SKL_BLD_NUM)
>  MODULE_FIRMWARE(I915_SKL_HUC_UCODE);
>  
> -#define I915_BXT_HUC_UCODE "i915/bxt_huc_ver01_07_1398.bin"
> +#define I915_BXT_HUC_UCODE HUC_FW_PATH(bxt, BXT_FW_MAJOR, \
> +	BXT_FW_MINOR, BXT_BLD_NUM)
>  MODULE_FIRMWARE(I915_BXT_HUC_UCODE);
>  
>  /**
> @@ -151,12 +164,12 @@ void intel_huc_init(struct drm_device *dev)
>  
>  	if (IS_SKYLAKE(dev_priv)) {
>  		fw_path = I915_SKL_HUC_UCODE;
> -		huc_fw->major_ver_wanted = 1;
> -		huc_fw->minor_ver_wanted = 7;
> +		huc_fw->major_ver_wanted = SKL_FW_MAJOR;
> +		huc_fw->minor_ver_wanted = SKL_FW_MINOR;
>  	} else if (IS_BROXTON(dev_priv)) {
>  		fw_path = I915_BXT_HUC_UCODE;
> -		huc_fw->major_ver_wanted = 1;
> -		huc_fw->minor_ver_wanted = 7;
> +		huc_fw->major_ver_wanted = BXT_FW_MAJOR;
> +		huc_fw->minor_ver_wanted = BXT_FW_MINOR;
>  	}
>  
>  	if (fw_path == NULL)
> -- 
> 2.7.4
> 

Looks good but it would be far better to make these changes in the
corresponding patches within the origin HuC patch set, rather than
proposing a follow-up patch to correct issues in that set (which is
not yet merged and can be updated).
-Jeff
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