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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/gma500/gtt.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/gma500/gtt.h')
-rw-r--r-- | kernel/drivers/gpu/drm/gma500/gtt.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/gma500/gtt.h b/kernel/drivers/gpu/drm/gma500/gtt.h new file mode 100644 index 000000000..cdbb350c9 --- /dev/null +++ b/kernel/drivers/gpu/drm/gma500/gtt.h @@ -0,0 +1,66 @@ +/************************************************************************** + * Copyright (c) 2007-2008, Intel 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, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + **************************************************************************/ + +#ifndef _PSB_GTT_H_ +#define _PSB_GTT_H_ + +#include <drm/drmP.h> +#include <drm/drm_gem.h> + +/* This wants cleaning up with respect to the psb_dev and un-needed stuff */ +struct psb_gtt { + uint32_t gatt_start; + uint32_t mmu_gatt_start; + uint32_t gtt_start; + uint32_t gtt_phys_start; + unsigned gtt_pages; + unsigned gatt_pages; + unsigned long stolen_size; + unsigned long vram_stolen_size; + struct rw_semaphore sem; +}; + +/* Exported functions */ +extern int psb_gtt_init(struct drm_device *dev, int resume); +extern void psb_gtt_takedown(struct drm_device *dev); + +/* Each gtt_range describes an allocation in the GTT area */ +struct gtt_range { + struct resource resource; /* Resource for our allocation */ + u32 offset; /* GTT offset of our object */ + struct drm_gem_object gem; /* GEM high level stuff */ + int in_gart; /* Currently in the GART (ref ct) */ + bool stolen; /* Backed from stolen RAM */ + bool mmapping; /* Is mmappable */ + struct page **pages; /* Backing pages if present */ + int npage; /* Number of backing pages */ + int roll; /* Roll applied to the GTT entries */ +}; + +extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len, + const char *name, int backed, + u32 align); +extern void psb_gtt_kref_put(struct gtt_range *gt); +extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt); +extern int psb_gtt_pin(struct gtt_range *gt); +extern void psb_gtt_unpin(struct gtt_range *gt); +extern void psb_gtt_roll(struct drm_device *dev, + struct gtt_range *gt, int roll); +extern int psb_gtt_restore(struct drm_device *dev); +#endif |