From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 5/6] drm/i915: Remove redundant intel_autoenable_gt_powersave()
Date: Thu, 02 Nov 2017 15:36:35 +0200 [thread overview]
Message-ID: <1509629795.27999.0.camel@linux.intel.com> (raw)
In-Reply-To: <20171102124226.30086-6-chris@chris-wilson.co.uk>
On Thu, 2017-11-02 at 12:42 +0000, Chris Wilson wrote:
> Now that we always execute a context switch upon module load, there is
> no need to queue a delayed task for doing so. The purpose of the delayed
> task is to enable GT powersaving, for which we need the HW state to be
> valid (i.e. having loaded a context and initialised basic state). We
> used to defer this operation as historically it was slow (due to slow
> register polling, fixed with commit 1758b90e38f5 ("drm/i915: Use a hybrid
> scheme for fast register waits")) but now we have a requirement to save
> the default HW state.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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next prev parent reply other threads:[~2017-11-02 13:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 12:42 Context isolation Chris Wilson
2017-11-02 12:42 ` [PATCH 1/6] drm/i915: Force the switch to the i915->kernel_context Chris Wilson
2017-11-02 13:45 ` Joonas Lahtinen
2017-11-02 15:40 ` Mika Kuoppala
2017-11-02 15:45 ` Chris Wilson
2017-11-02 12:42 ` [PATCH 2/6] drm/i915: Move GT powersaving init to i915_gem_init() Chris Wilson
2017-11-02 13:46 ` Joonas Lahtinen
2017-11-02 14:35 ` Sagar Arun Kamble
2017-11-02 14:55 ` Chris Wilson
2017-11-02 15:38 ` Sagar Arun Kamble
2017-11-02 12:42 ` [PATCH 3/6] drm/i915: Inline intel_modeset_gem_init() Chris Wilson
2017-11-02 13:47 ` Joonas Lahtinen
2017-11-02 12:42 ` [PATCH 4/6] drm/i915: Record the default hw state after reset upon load Chris Wilson
2017-11-02 13:56 ` Mika Kuoppala
2017-11-02 14:10 ` Chris Wilson
2017-11-02 14:23 ` Ville Syrjälä
2017-11-02 14:37 ` Chris Wilson
2017-11-02 14:26 ` Joonas Lahtinen
2017-11-02 12:42 ` [PATCH 5/6] drm/i915: Remove redundant intel_autoenable_gt_powersave() Chris Wilson
2017-11-02 13:36 ` Joonas Lahtinen [this message]
2017-11-02 12:42 ` [PATCH 6/6] drm/i915: Stop caching the "golden" renderstate Chris Wilson
2017-11-02 14:43 ` Joonas Lahtinen
2017-11-02 14:54 ` Rodrigo Vivi
2017-11-02 14:56 ` Joonas Lahtinen
2017-11-02 22:36 ` Oscar Mateo
2017-11-02 23:34 ` Rodrigo Vivi
2017-11-02 23:36 ` Chris Wilson
2017-11-03 8:39 ` Joonas Lahtinen
2017-11-03 17:44 ` Rodrigo Vivi
2017-11-02 13:14 ` ✗ Fi.CI.BAT: failure for series starting with [1/6] drm/i915: Force the switch to the i915->kernel_context Patchwork
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