From: Damien Lespiau <damien.lespiau@intel.com>
To: Tom.O'Rourke@intel.com
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/chv: WaDisablePwrmtrEvent:chv on CHV only
Date: Mon, 9 Jun 2014 18:32:38 +0100 [thread overview]
Message-ID: <20140609173238.GA27756@strange.amr.corp.intel.com> (raw)
In-Reply-To: <1402333609-5782-1-git-send-email-Tom.O'Rourke@intel.com>
On Mon, Jun 09, 2014 at 10:06:49AM -0700, Tom.O'Rourke@intel.com wrote:
> From: Tom O'Rourke <Tom.O'Rourke@intel.com>
>
> In gen8_enable_rps, don't write CHV registers unless IS_CHERRYVIEW.
>
> Signed-off-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
A lovely catch.
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
--
Damien
> ---
> drivers/gpu/drm/i915/intel_pm.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index d9c5918..3d3e402 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3522,8 +3522,10 @@ static void gen8_enable_rps(struct drm_device *dev)
> I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
>
> /* WaDisablePwrmtrEvent:chv (pre-production hw) */
> - I915_WRITE(0xA80C, I915_READ(0xA80C) & 0x00ffffff);
> - I915_WRITE(0xA810, I915_READ(0xA810) & 0xffffff00);
> + if (IS_CHERRYVIEW(dev)) {
> + I915_WRITE(0xA80C, I915_READ(0xA80C) & 0x00ffffff);
> + I915_WRITE(0xA810, I915_READ(0xA810) & 0xffffff00);
> + }
>
> /* 5: Enable RPS */
> I915_WRITE(GEN6_RP_CONTROL,
> --
> 1.7.9.5
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2014-06-09 17:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-09 17:06 [PATCH] drm/i915/chv: WaDisablePwrmtrEvent:chv on CHV only Tom.O'Rourke
2014-06-09 17:32 ` Damien Lespiau [this message]
2014-06-10 15:30 ` Jani Nikula
2014-06-10 15:34 ` Jani Nikula
2014-06-10 17:16 ` Ville Syrjälä
2014-06-10 18:17 ` Jani Nikula
2014-06-10 19:03 ` O'Rourke, Tom
2014-06-10 19:15 ` Ville Syrjälä
2014-06-10 23:26 ` [PATCH] drm/i915/chv: Fix "drm/i915/chv: Add a bunch of pre production workarounds" Tom.O'Rourke
2014-06-12 8:20 ` Ville Syrjälä
2014-06-12 10:35 ` Daniel Vetter
2014-06-12 10:33 ` [PATCH] drm/i915/chv: WaDisablePwrmtrEvent:chv on CHV only Jani Nikula
2014-06-12 12:42 ` Daniel Vetter
2014-06-13 8:35 ` [PATCH] drm/i915/bdw: remove erroneous chv specific workarounds from bdw code Jani Nikula
2014-06-13 8:53 ` Jani Nikula
2014-06-13 15:55 ` O'Rourke, Tom
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