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gpu: nvgpu: bring back tegra idle registration

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To make do_idle work when nvgpu is built as a module, reverse the order
of call dependencies for do_idle. Don't provide visible
gk20a_do_{idle,unidle}() functions for the kernel but instead call the
kernel for registering and unregistering pointers to them when the
driver loads and unloads.

Refactor the internal __gk20a_do_{idle,unidle} functions to take a
struct gk20a * instead of struct device *, and use the callback api for
providing that g instead of retrieving the plat device from device tree.

Bug 200290850

Change-Id: Ibef8b069302e547b298069cbb97734f461a10cc3
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1493774
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Konsta Holtta
2017-06-05 16:22:30 +03:00
committed by mobile promotions
parent 7680fd689e
commit f6c921ec97
7 changed files with 18 additions and 68 deletions
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35
include/linux/gk20a.h
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@@ -1,35 +0,0 @@
/*
* gk20a GPU driver
*
* Copyright (c) 2014-2016, NVIDIA Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GK20A_H
#define __GK20A_H
#include <linux/errno.h>
struct channel_gk20a;
struct platform_device;
#if defined(CONFIG_GK20A) && defined(CONFIG_PM)
int gk20a_do_idle(void);
int gk20a_do_unidle(void);
#else
static inline int gk20a_do_idle(void) { return -ENOSYS; }
static inline int gk20a_do_unidle(void) { return -ENOSYS; }
#endif
#endif