On Tue, Jan 27, 2015 at 06:13:13PM +0000, Damien Lespiau wrote:
> Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
OK, so this has the right w/a name whereas Ben's earlier patch didn't.
So we should go with this version instead.
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 1 +
> drivers/gpu/drm/i915/intel_ringbuffer.c | 2 ++
> 2 files changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index ae8ea42..47bc4e2 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -5253,6 +5253,7 @@ enum punit_power_well {
>
> /* GEN8 chicken */
> #define HDC_CHICKEN0 0x7300
> +#define HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT (1<<5)
> #define HDC_FORCE_NON_COHERENT (1<<4)
> #define HDC_DONOT_FETCH_MEM_WHEN_MASKED (1<<11)
> #define HDC_FENCE_DEST_SLM_DISABLE (1<<14)
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 36dad33..d393026 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));
>
> --
> 1.8.3.1
>
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--
Ville Syrjälä
Intel OTC
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