Re: [PATCH] drm/i915/guc: Consolidate firmware major-minor to one place

[Jani Nikula <jani.nikula@linux.intel.com>]

On Thu, 30 Jun 2016, Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>
> Currently to change the firmware one has to update the exported
> module firmware string and the major-minor versions used for
> verification after load. Consolidate that to a single place
> defining correct major and minor versions per platform.
>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Cc: Dave Gordon <david.s.gordon@intel.com>

I guess this would be nice on top of the patch that enables guc loading
on kbl?

Jani.

> ---
>  drivers/gpu/drm/i915/intel_guc_loader.c | 21 +++++++++++++++------
>  1 file changed, 15 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
> index 4f6311a91a7e..9b08afafe802 100644
> --- a/drivers/gpu/drm/i915/intel_guc_loader.c
> +++ b/drivers/gpu/drm/i915/intel_guc_loader.c
> @@ -59,10 +59,19 @@
>   *
>   */
>  
> -#define I915_SKL_GUC_UCODE "i915/skl_guc_ver6_1.bin"
> +#define SKL_FW_MAJOR 6
> +#define SKL_FW_MINOR 1
> +
> +#define BXT_FW_MAJOR 8
> +#define BXT_FW_MINOR 7
> +
> +#define GUC_FW_PATH(platform, major, minor) \
> +	"i915/" __stringify(platform) "_guc_ver" __stringify(major) "_" __stringify(minor) ".bin"
> +
> +#define I915_SKL_GUC_UCODE GUC_FW_PATH(skl, SKL_FW_MAJOR, SKL_FW_MINOR)
>  MODULE_FIRMWARE(I915_SKL_GUC_UCODE);
>  
> -#define I915_BXT_GUC_UCODE "i915/bxt_guc_ver8_7.bin"
> +#define I915_BXT_GUC_UCODE GUC_FW_PATH(bxt, BXT_FW_MAJOR, BXT_FW_MINOR)
>  MODULE_FIRMWARE(I915_BXT_GUC_UCODE);
>  
>  /* User-friendly representation of an enum */
> @@ -692,12 +701,12 @@ void intel_guc_init(struct drm_device *dev)
>  		fw_path = NULL;
>  	} else if (IS_SKYLAKE(dev)) {
>  		fw_path = I915_SKL_GUC_UCODE;
> -		guc_fw->guc_fw_major_wanted = 6;
> -		guc_fw->guc_fw_minor_wanted = 1;
> +		guc_fw->guc_fw_major_wanted = SKL_FW_MAJOR;
> +		guc_fw->guc_fw_minor_wanted = SKL_FW_MINOR;
>  	} else if (IS_BROXTON(dev)) {
>  		fw_path = I915_BXT_GUC_UCODE;
> -		guc_fw->guc_fw_major_wanted = 8;
> -		guc_fw->guc_fw_minor_wanted = 7;
> +		guc_fw->guc_fw_major_wanted = BXT_FW_MAJOR;
> +		guc_fw->guc_fw_minor_wanted = BXT_FW_MINOR;
>  	} else {
>  		fw_path = "";	/* unknown device */
>  	}

-- 
Jani Nikula, Intel Open Source Technology Center
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