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From: Lukas Wunner <lukas@wunner.de>
To: Alex Deucher <alexdeucher@gmail.com>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
	Maling list - DRI developers <dri-devel@lists.freedesktop.org>,
	Bastien Nocera <hadess@hadess.net>
Subject: Re: [PATCH v5 00/12] Enable GPU switching on pre-retina?MacBook Pro
Date: Tue, 15 Mar 2016 21:41:40 +0100	[thread overview]
Message-ID: <20160315204140.GA27934@wunner.de> (raw)
In-Reply-To: <CADnq5_Mu7naFnJdGAeDheATb6PXUbzu+Bb-zAb5ij6jiSOUwFw@mail.gmail.com>

Hi Alex,

On Tue, Mar 15, 2016 at 02:33:56PM -0400, Alex Deucher wrote:
> On Tue, Mar 15, 2016 at 1:54 PM, Lukas Wunner <lukas@wunner.de> wrote:
> > On Sat, Mar 05, 2016 at 01:10:56PM -0500, Alex Deucher wrote:
> >> Is there any reason to make use of the mux?
> >
> > Performance (lower latency => no need for framebuffer writes over PCIe),
> > improved battery life (no need to use 2 GPUs simultaneously).
> >
> > Technically you can't just ignore that the mux is there on the MBP
> > because the kernel has no control over the GPU used on boot.
> > (It's determined by EFI).
> >
> Is GPU power switching also handled by the mux?  Is it independent of
> the display mux?

Yes and yes.

Best regards,

Lukas
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

      reply	other threads:[~2016-03-15 20:41 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-11 19:09 [PATCH v5 00/12] Enable GPU switching on pre-retina MacBook Pro Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 10/12] drm/i915: Defer probe if gmux is present but its driver isn't Lukas Wunner
2016-02-09  9:04   ` Daniel Vetter
2016-02-14 12:10     ` Lukas Wunner
2016-02-14 12:46       ` Daniel Vetter
2016-02-16 15:58         ` Lukas Wunner
2016-02-16 16:08           ` Daniel Vetter
2016-02-18 20:34             ` Lukas Wunner
2016-02-18 21:39               ` Daniel Vetter
2016-02-18 22:20                 ` Lukas Wunner
2016-02-18 23:11                   ` Daniel Vetter
2016-02-18 23:53                     ` Deucher, Alexander
2016-01-11 19:09 ` [PATCH v5 03/12] apple-gmux: Track switch state Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 12/12] drm/radeon: Defer probe if gmux is present but its driver isn't Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 02/12] vga_switcheroo: Add support for switching only the DDC Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 06/12] drm/i915: Switch DDC when reading the EDID Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 07/12] drm/nouveau: " Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 01/12] vga_switcheroo: Add handler flags infrastructure Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 05/12] drm/edid: Switch DDC when reading the EDID Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 11/12] drm/nouveau: Defer probe if gmux is present but its driver isn't Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 08/12] drm/radeon: Switch DDC when reading the EDID Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 04/12] apple-gmux: Add switch_ddc support Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 09/12] apple-gmux: Add helper for presence detect Lukas Wunner
     [not found] ` <cover.1452525860.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-02-01 22:49   ` [PATCH v5 00/12] Enable GPU switching on pre-retina MacBook Pro Lukas Wunner
2016-02-02  1:10     ` Dave Airlie
2016-02-02  1:19       ` Dave Airlie
2016-02-02 15:03       ` Lukas Wunner
     [not found]     ` <20160201224944.GA12944-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-02-02  6:33       ` Pierre Moreau
2016-02-08 18:10 ` Darren Hart
     [not found]   ` <20160208181000.GL1779-Z5kFBHtJu+EzCVHREhWfF0EOCMrvLtNR@public.gmane.org>
2016-02-09  9:01     ` Daniel Vetter
2016-03-04 16:12 ` Bastien Nocera
2016-03-05 14:16   ` [Intel-gfx] [PATCH v5 00/12] Enable GPU switching on pre-retina?MacBook Pro Lukas Wunner
2016-03-05 16:31     ` Bastien Nocera
2016-03-09 23:30       ` Dave Airlie
2016-03-10 15:29         ` Bastien Nocera
2016-03-10 15:33           ` Bastien Nocera
2016-03-14 12:41       ` [Intel-gfx] " Lukas Wunner
2016-03-14 13:37         ` Bastien Nocera
2016-03-15  7:51           ` Daniel Vetter
2016-03-15 11:10           ` [Intel-gfx] " Dave Airlie
2016-03-15 11:55             ` Bastien Nocera
2016-04-05 16:59         ` Bastien Nocera
2016-04-05 17:43           ` Lukas Wunner
2016-03-05 17:28     ` [Intel-gfx] " Bastien Nocera
2016-03-05 18:10     ` Alex Deucher
2016-03-15 17:54       ` Lukas Wunner
2016-03-15 18:33         ` Alex Deucher
2016-03-15 20:41           ` Lukas Wunner [this message]

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