Re: [PATCH v2] drm/i915/bdw: Implement WaForceContextSaveRestoreNonCoherent

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On Mon, Feb 09, 2015 at 09:14:26PM +0000, Chris Wilson wrote:
> On Mon, Feb 09, 2015 at 07:25:56PM +0000, Damien Lespiau wrote:
> > v2: Reorder defines (Ben)
> 
> Bikeshed time?

Oh no, why did I give in the first time? now I'm being bullied!

> >  /* WaCatErrorRejectionIssue */
> >  #define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG		0x9030
> > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> > index 46486a5..a9cde64 100644
> > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> > @@ -790,9 +790,11 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring)
> >  	 */
> >  	/* WaForceEnableNonCoherent:bdw */
> >  	/* WaHdcDisableFetchWhenMasked:bdw */
> > +	/* WaForceContextSaveRestoreNonCoherent:bdw */
> >  	/* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
> >  	WA_SET_BIT_MASKED(HDC_CHICKEN0,
> >  			  HDC_FORCE_NON_COHERENT |
> > +			  HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT |
> >  			  HDC_DONOT_FETCH_MEM_WHEN_MASKED |
> >  			  (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
> 
> This is nicer as:
>  	WA_SET_BIT_MASKED(HDC_CHICKEN0,
> 			  /* WaForceEnableNonCoherent:bdw */
>  			  HDC_FORCE_NON_COHERENT |
> +			  /* WaForceContextSaveRestoreNonCoherent:bdw */
> +			  HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT |
> 			  /* WaHdcDisableFetchWhenMasked:bdw */
>  			  HDC_DONOT_FETCH_MEM_WHEN_MASKED |
> 			  /* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
>  			  (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
> 
> Indeed, that shows that you misorded your comment! ;-)

Ah, but there is a line over 80 characters there! not acceptable!

-- 
Damien
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