[Intel-gfx] [PATCH] drm/i915: refactor register fw read/write macros for recent GENs

[Tvrtko Ursulin]

On 04/02/2017 01:23, Daniele Ceraolo Spurio wrote:
> The only difference for the more recent of those macros is the version
> of the *_reg_<read/write>_fw_domains function. Passing the function
> prefix in allows us to re-use the same macro to generate functions for
> different GENs and will make it easier to add new accessors in the future
>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_uncore.c | 40 ++++++++++---------------------------
>  1 file changed, 10 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
> index 3d243fe..1ff8fd9 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.c
> +++ b/drivers/gpu/drm/i915/intel_uncore.c
> @@ -992,29 +992,19 @@ static inline void __force_wake_auto(struct drm_i915_private *dev_priv,
>  		___force_wake_auto(dev_priv, fw_domains);
>  }
>
> -#define __gen6_read(x) \
> +#define __gen_read(func, x) \
>  static u##x \
> -gen6_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \
> +func##_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \
>  	enum forcewake_domains fw_engine; \
>  	GEN6_READ_HEADER(x); \
> -	fw_engine = __gen6_reg_read_fw_domains(offset); \
> -	if (fw_engine) \
> -		__force_wake_auto(dev_priv, fw_engine); \
> -	val = __raw_i915_read##x(dev_priv, reg); \
> -	GEN6_READ_FOOTER; \
> -}
> -
> -#define __fwtable_read(x) \
> -static u##x \
> -fwtable_read##x(struct drm_i915_private *dev_priv, i915_reg_t reg, bool trace) { \
> -	enum forcewake_domains fw_engine; \
> -	GEN6_READ_HEADER(x); \
> -	fw_engine = __fwtable_reg_read_fw_domains(offset); \
> +	fw_engine = __##func##_reg_read_fw_domains(offset); \
>  	if (fw_engine) \
>  		__force_wake_auto(dev_priv, fw_engine); \
>  	val = __raw_i915_read##x(dev_priv, reg); \
>  	GEN6_READ_FOOTER; \
>  }
> +#define __gen6_read(x) __gen_read(gen6, x)
> +#define __fwtable_read(x) __gen_read(fwtable, x)
>
>  #define __gen9_decoupled_read(x) \
>  static u##x \
> @@ -1115,29 +1105,19 @@ static inline void __force_wake_auto(struct drm_i915_private *dev_priv,
>  	GEN6_WRITE_FOOTER; \
>  }
>
> -#define __gen8_write(x) \
> +#define __gen_write(func, x) \
>  static void \
> -gen8_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool trace) { \
> +func##_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool trace) { \
>  	enum forcewake_domains fw_engine; \
>  	GEN6_WRITE_HEADER; \
> -	fw_engine = __gen8_reg_write_fw_domains(offset); \
> -	if (fw_engine) \
> -		__force_wake_auto(dev_priv, fw_engine); \
> -	__raw_i915_write##x(dev_priv, reg, val); \
> -	GEN6_WRITE_FOOTER; \
> -}
> -
> -#define __fwtable_write(x) \
> -static void \
> -fwtable_write##x(struct drm_i915_private *dev_priv, i915_reg_t reg, u##x val, bool trace) { \
> -	enum forcewake_domains fw_engine; \
> -	GEN6_WRITE_HEADER; \
> -	fw_engine = __fwtable_reg_write_fw_domains(offset); \
> +	fw_engine = __##func##_reg_write_fw_domains(offset); \
>  	if (fw_engine) \
>  		__force_wake_auto(dev_priv, fw_engine); \
>  	__raw_i915_write##x(dev_priv, reg, val); \
>  	GEN6_WRITE_FOOTER; \
>  }
> +#define __gen8_write(x) __gen_write(gen8, x)
> +#define __fwtable_write(x) __gen_write(fwtable, x)
>
>  #define __gen9_decoupled_write(x) \
>  static void \
>

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Regards,

Tvrtko