[Intel-gfx] [PATCH 1/2] drm/i915: Disable decoupled MMIO

[Tvrtko Ursulin]

On 23/05/2017 22:58, kai.chen at intel.com wrote:
> From: Kai Chen <kai.chen at intel.com>
>
> The decoupled MMIO feature doesn't work as intended by HW team. Enabling
> it with forcewake will only make debugging efforts more difficult, so
> let's disable it.
>
> Fixes: 85ee17ebeedd ("drm/i915/bxt: Broxton decoupled MMIO")
> Cc: Zhe Wang <zhe1.wang at intel.com>
> Cc: Praveen Paneri <praveen.paneri at intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Cc: Daniel Vetter <daniel.vetter at intel.com>
> Cc: Jani Nikula <jani.nikula at linux.intel.com>
> Cc: intel-gfx at lists.freedesktop.org
> Cc: <stable at vger.kernel.org> # v4.10+
>
> Signed-off-by: Kai Chen <kai.chen at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_pci.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index f80db2c..cf43dc1 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -385,7 +385,6 @@ static const struct intel_device_info intel_skylake_gt3_info = {
>  	.has_gmbus_irq = 1, \
>  	.has_logical_ring_contexts = 1, \
>  	.has_guc = 1, \
> -	.has_decoupled_mmio = 1, \
>  	.has_aliasing_ppgtt = 1, \
>  	.has_full_ppgtt = 1, \
>  	.has_full_48bit_ppgtt = 1, \
>

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

Regards,

Tvrtko