[Intel-gfx] [PATCH 4/9] drm/i915/debugfs: replace I915_READ()+I915_WRITE() with intel_uncore_rmw()

Rodrigo Vivi rodrigo.vivi at intel.com
Thu Nov 12 20:21:03 UTC 2020


On Thu, Nov 12, 2020 at 01:44:37PM +0200, Jani Nikula wrote:
> Remove the last I915_WRITE() use in i915_debugfs.c.
> 
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 7cbca268cb61..151734a1a496 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -1562,13 +1562,9 @@ i915_cache_sharing_set(void *data, u64 val)
>  	drm_dbg(&dev_priv->drm,
>  		"Manually setting uncore sharing to %llu\n", val);
>  	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
> -		u32 snpcr;
> -
>  		/* Update the cache sharing policy here as well */
> -		snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
> -		snpcr &= ~GEN6_MBC_SNPCR_MASK;
> -		snpcr |= val << GEN6_MBC_SNPCR_SHIFT;
> -		I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
> +		intel_uncore_rmw(&dev_priv->uncore, GEN6_MBCUNIT_SNPCR,
> +				 GEN6_MBC_SNPCR_MASK, val << GEN6_MBC_SNPCR_SHIFT);
>  	}
>  
>  	return 0;
> -- 
> 2.20.1
> 
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