[Intel-gfx] [PATCH 13/37] drm/i915: add support for SBI ops

[Chris Wilson]

On Wed, 21 Mar 2012 22:09:48 -0300, Eugeni Dodonov <eugeni.dodonov at intel.com> wrote:
> With Lynx Point, we need to use SBI to communicate with the display clock
> control. This commit adds helper functions to access the registers via
> SBI.
> 
> Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c |   44 ++++++++++++++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index de1ba19..c225de4 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -1198,6 +1198,50 @@ static void intel_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
>  	POSTING_READ(reg);
>  }
>  
> +/* SBI access */
> +static inline void
> +SBI_WRITE(struct drm_i915_private *dev_priv, u16 reg, u32 value)

These are too big and too frequent to be inlined. At least that means we
won't have to shout!
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre