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From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: ankitprasad.r.sharma@intel.com, intel-gfx@lists.freedesktop.org
Cc: akash.goel@intel.com, shashidhar.hiremath@intel.com
Subject: Re: [PATCH 09/10] acpi: Export acpi_bus_type
Date: Tue, 22 Dec 2015 16:41:17 +0000	[thread overview]
Message-ID: <56797D2D.9030200@linux.intel.com> (raw)
In-Reply-To: <1450765253-32104-10-git-send-email-ankitprasad.r.sharma@intel.com>


On 22/12/15 06:20, ankitprasad.r.sharma@intel.com wrote:
> From: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
>
> Some modules, like i915.ko, needs to detect when certain ACPI features
> are active inorder to prevent corruption on contended resources.
> In particular, use of BIOS RapidStart Technology may corrupt the contents
> of the reserved graphics memory, due to unalarmed hibernation. In which
> case i915.ko cannot assume that it (reserved gfx memory) remains
> unmodified and must recreate teh contents and importantly not use it to
> store unrecoverable user data.
>
> Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
> ---
>   drivers/acpi/bus.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> index a212cef..69509c7 100644
> --- a/drivers/acpi/bus.c
> +++ b/drivers/acpi/bus.c
> @@ -814,6 +814,7 @@ struct bus_type acpi_bus_type = {
>   	.remove		= acpi_device_remove,
>   	.uevent		= acpi_device_uevent,
>   };
> +EXPORT_SYMBOL_GPL(acpi_bus_type);
>
>   /* --------------------------------------------------------------------------
>                                Initialization/Cleanup
>

For this one we'll need to find a suitable reviewer in the ACPI team.

You can use scripts/get_maintainer.pl -f drivers/acpi/bus.c to find out 
who to ask.

Regards,

Tvrtko
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  reply	other threads:[~2015-12-22 16:41 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-22  6:20 [PATCH v13 0/10] Support for creating/using Stolen memory backed objects ankitprasad.r.sharma
2015-12-22  6:20 ` [PATCH 01/10] drm/i915: Allow use of get_dma_address for stolen " ankitprasad.r.sharma
2015-12-22 10:23   ` Tvrtko Ursulin
2015-12-22 10:39     ` Chris Wilson
2016-01-05 16:47       ` Daniel Vetter
2015-12-22  6:20 ` [PATCH 02/10] drm/i915: Use insert_page for pwrite_fast ankitprasad.r.sharma
2015-12-22  6:55   ` kbuild test robot
2015-12-22 10:44   ` Tvrtko Ursulin
2015-12-22 11:15     ` Ankitprasad Sharma
2015-12-22 11:52       ` Chris Wilson
2015-12-22 12:03         ` Tvrtko Ursulin
2015-12-22 13:38           ` Chris Wilson
2015-12-22  6:20 ` [PATCH 03/10] drm/i915: Clearing buffer objects via CPU/GTT ankitprasad.r.sharma
2015-12-22 11:09   ` Tvrtko Ursulin
2015-12-22  6:20 ` [PATCH 04/10] drm/i915: Support for creating Stolen memory backed objects ankitprasad.r.sharma
2016-01-12 12:45   ` Chris Wilson
2015-12-22  6:20 ` [PATCH 05/10] drm/i915: Propagating correct error codes to the userspace ankitprasad.r.sharma
2015-12-22 11:20   ` Tvrtko Ursulin
2015-12-22 11:29     ` Ankitprasad Sharma
2015-12-22 12:02       ` Tvrtko Ursulin
2016-01-06  7:45         ` Daniel Vetter
2015-12-22  6:20 ` [PATCH 06/10] drm/i915: Add support for stealing purgable stolen pages ankitprasad.r.sharma
2015-12-22 11:22   ` Tvrtko Ursulin
2015-12-22  6:20 ` [PATCH 07/10] drm/i915: Support for pread/pwrite from/to non shmem backed objects ankitprasad.r.sharma
2015-12-22 11:58   ` Tvrtko Ursulin
2015-12-22 17:40     ` Chris Wilson
2016-01-11 14:21       ` Tvrtko Ursulin
2016-01-11 14:45         ` Chris Wilson
2016-01-11 15:11           ` Tvrtko Ursulin
2016-01-11 17:03             ` Chris Wilson
2016-01-11 17:15               ` Tvrtko Ursulin
2016-01-11 21:29                 ` Chris Wilson
2016-01-12  7:50                   ` Ankitprasad Sharma
2015-12-22  6:20 ` [PATCH 08/10] drm/i915: Migrate stolen objects before hibernation ankitprasad.r.sharma
2015-12-22 12:33   ` Tvrtko Ursulin
2015-12-22 17:02     ` Chris Wilson
2015-12-22 17:14       ` Tvrtko Ursulin
2016-01-06  7:48         ` Daniel Vetter
2015-12-22 17:23     ` Tvrtko Ursulin
2015-12-22  6:20 ` [PATCH 09/10] acpi: Export acpi_bus_type ankitprasad.r.sharma
2015-12-22 16:41   ` Tvrtko Ursulin [this message]
2016-01-06  7:51     ` Daniel Vetter
2015-12-22  6:20 ` [PATCH 10/10] drm/i915: Disable use of stolen area by User when Intel RST is present ankitprasad.r.sharma
2015-12-22 12:44   ` Tvrtko Ursulin
2015-12-22 13:14   ` Chris Wilson
2016-01-06  7:52   ` Daniel Vetter

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