Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
On Thu, Feb 26, 2015 at 10:20 AM, Damien Lespiau
<damien.lespiau@xxxxxxxxx> wrote:
> Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 1 +
> drivers/gpu/drm/i915/intel_pm.c | 4 ++++
> 2 files changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 55143cb..6849b74 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -6056,6 +6056,7 @@ enum skl_disp_power_wells {
> # define GEN6_CSUNIT_CLOCK_GATE_DISABLE (1 << 7)
>
> #define GEN6_UCGCTL2 0x9404
> +# define GEN6_VFUNIT_CLOCK_GATE_DISABLE (1 << 31)
> # define GEN7_VDSUNIT_CLOCK_GATE_DISABLE (1 << 30)
> # define GEN7_TDLUNIT_CLOCK_GATE_DISABLE (1 << 22)
> # define GEN6_RCZUNIT_CLOCK_GATE_DISABLE (1 << 13)
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index f11e487..601f43c 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -75,6 +75,10 @@ static void skl_init_clock_gating(struct drm_device *dev)
> I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
> GEN8_GAPSUNIT_CLOCK_GATE_DISABLE |
> GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
> +
> + /* WaDisableVFUnitClockGating:skl */
> + I915_WRITE(GEN6_UCGCTL2, I915_READ(GEN6_UCGCTL2) |
> + GEN6_VFUNIT_CLOCK_GATE_DISABLE);
> }
>
> if (INTEL_REVID(dev) <= SKL_REVID_D0) {
> --
> 1.8.3.1
>
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--
Rodrigo Vivi
Blog: http://blog.vivi.eng.br
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