diff options
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/nouveau/nvkm/subdev/fuse/gf100.c | |
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/nouveau/nvkm/subdev/fuse/gf100.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gf100.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gf100.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gf100.c new file mode 100644 index 000000000..393ef3a0f --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/gf100.c @@ -0,0 +1,78 @@ +/* + * Copyright 2014 Martin Peres + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Martin Peres + */ +#include "priv.h" + +struct gf100_fuse_priv { + struct nvkm_fuse base; + + spinlock_t fuse_enable_lock; +}; + +static u32 +gf100_fuse_rd32(struct nvkm_object *object, u64 addr) +{ + struct gf100_fuse_priv *priv = (void *)object; + unsigned long flags; + u32 fuse_enable, unk, val; + + /* racy if another part of nvkm start writing to these regs */ + spin_lock_irqsave(&priv->fuse_enable_lock, flags); + fuse_enable = nv_mask(priv, 0x22400, 0x800, 0x800); + unk = nv_mask(priv, 0x21000, 0x1, 0x1); + val = nv_rd32(priv, 0x21100 + addr); + nv_wr32(priv, 0x21000, unk); + nv_wr32(priv, 0x22400, fuse_enable); + spin_unlock_irqrestore(&priv->fuse_enable_lock, flags); + return val; +} + + +static int +gf100_fuse_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + struct gf100_fuse_priv *priv; + int ret; + + ret = nvkm_fuse_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + spin_lock_init(&priv->fuse_enable_lock); + return 0; +} + +struct nvkm_oclass +gf100_fuse_oclass = { + .handle = NV_SUBDEV(FUSE, 0xC0), + .ofuncs = &(struct nvkm_ofuncs) { + .ctor = gf100_fuse_ctor, + .dtor = _nvkm_fuse_dtor, + .init = _nvkm_fuse_init, + .fini = _nvkm_fuse_fini, + .rd32 = gf100_fuse_rd32, + }, +}; |