[Intel-gfx] [PATCH] [v2] drm/i915/bdw: Add FBC support

[Paulo Zanoni]

2014-02-20 21:01 GMT-03:00 Ben Widawsky <benjamin.widawsky at intel.com>:
> This got lost when we shuffled around our internal branch and
> GEN7_FEATURES macro. There were no HW changes to support FBC, so we just
> need to set the flag.
>
> v2: Don't allow FBC for any pipe but A on platforms with DDI. (Paulo)
>
> Cc: Daisy Sun <daisy.sun at intel.com>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_drv.c | 2 ++
>  drivers/gpu/drm/i915/intel_pm.c | 2 +-
>  2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index a18c27d..dc44048 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -265,6 +265,7 @@ static const struct intel_device_info intel_broadwell_d_info = {
>         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
>         .has_llc = 1,
>         .has_ddi = 1,
> +       .has_fbc = 1,
>         GEN_DEFAULT_PIPEOFFSETS,
>  };
>
> @@ -274,6 +275,7 @@ static const struct intel_device_info intel_broadwell_m_info = {
>         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
>         .has_llc = 1,
>         .has_ddi = 1,
> +       .has_fbc = 1,
>         GEN_DEFAULT_PIPEOFFSETS,
>  };
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index a03a12e..4f01b04 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -540,7 +540,7 @@ void intel_update_fbc(struct drm_device *dev)
>                         DRM_DEBUG_KMS("mode too large for compression, disabling\n");
>                 goto out_disable;
>         }
> -       if ((INTEL_INFO(dev)->gen < 4 || IS_HASWELL(dev)) &&
> +       if ((INTEL_INFO(dev)->gen < 4 || HAS_DDI(dev)) &&
>             intel_crtc->plane != PLANE_A) {
>                 if (set_no_fbc_reason(dev_priv, FBC_BAD_PLANE))
>                         DRM_DEBUG_KMS("plane not A, disabling compression\n");
> --
> 1.9.0
>
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-- 
Paulo Zanoni