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drm/i915/params: document I915_PARAMS_FOR_EACH() 

Macros with this much magic in them deserve some explanatory text.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6f012851a54433b23cb4752f9d4ef523165b1e58.1545920737.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2018-12-27 16:33:42 +02:00
parent d2167a2c29
commit 7012033033
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/i915/i915_params.h
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@ -33,6 +33,15 @@ struct drm_printer;
#define ENABLE_GUC_SUBMISSION BIT(0)
#define ENABLE_GUC_LOAD_HUC BIT(1)
/*
* Invoke param, a function-like macro, for each i915 param, with arguments:
*
* param(type, name, value)
*
* type: parameter type, one of {bool, int, unsigned int, char *}
* name: name of the parameter
* value: initial/default value of the parameter
*/
#define I915_PARAMS_FOR_EACH(param) \
param(char *, vbt_firmware, NULL) \
param(int, modeset, -1) \