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/instmem/base.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/instmem/base.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c new file mode 100644 index 000000000..d16358cc6 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c @@ -0,0 +1,146 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * 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: Ben Skeggs + */ +#include "priv.h" + +#include <core/engine.h> + +/****************************************************************************** + * instmem object base implementation + *****************************************************************************/ + +void +_nvkm_instobj_dtor(struct nvkm_object *object) +{ + struct nvkm_instmem *imem = nvkm_instmem(object); + struct nvkm_instobj *iobj = (void *)object; + + mutex_lock(&nv_subdev(imem)->mutex); + list_del(&iobj->head); + mutex_unlock(&nv_subdev(imem)->mutex); + + return nvkm_object_destroy(&iobj->base); +} + +int +nvkm_instobj_create_(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, int length, void **pobject) +{ + struct nvkm_instmem *imem = nvkm_instmem(parent); + struct nvkm_instobj *iobj; + int ret; + + ret = nvkm_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS, + length, pobject); + iobj = *pobject; + if (ret) + return ret; + + mutex_lock(&imem->base.mutex); + list_add(&iobj->head, &imem->list); + mutex_unlock(&imem->base.mutex); + return 0; +} + +/****************************************************************************** + * instmem subdev base implementation + *****************************************************************************/ + +static int +nvkm_instmem_alloc(struct nvkm_instmem *imem, struct nvkm_object *parent, + u32 size, u32 align, struct nvkm_object **pobject) +{ + struct nvkm_instmem_impl *impl = (void *)imem->base.object.oclass; + struct nvkm_instobj_args args = { .size = size, .align = align }; + return nvkm_object_ctor(parent, &parent->engine->subdev.object, + impl->instobj, &args, sizeof(args), pobject); +} + +int +_nvkm_instmem_fini(struct nvkm_object *object, bool suspend) +{ + struct nvkm_instmem *imem = (void *)object; + struct nvkm_instobj *iobj; + int i, ret = 0; + + if (suspend) { + mutex_lock(&imem->base.mutex); + list_for_each_entry(iobj, &imem->list, head) { + iobj->suspend = vmalloc(iobj->size); + if (!iobj->suspend) { + ret = -ENOMEM; + break; + } + + for (i = 0; i < iobj->size; i += 4) + iobj->suspend[i / 4] = nv_ro32(iobj, i); + } + mutex_unlock(&imem->base.mutex); + if (ret) + return ret; + } + + return nvkm_subdev_fini(&imem->base, suspend); +} + +int +_nvkm_instmem_init(struct nvkm_object *object) +{ + struct nvkm_instmem *imem = (void *)object; + struct nvkm_instobj *iobj; + int ret, i; + + ret = nvkm_subdev_init(&imem->base); + if (ret) + return ret; + + mutex_lock(&imem->base.mutex); + list_for_each_entry(iobj, &imem->list, head) { + if (iobj->suspend) { + for (i = 0; i < iobj->size; i += 4) + nv_wo32(iobj, i, iobj->suspend[i / 4]); + vfree(iobj->suspend); + iobj->suspend = NULL; + } + } + mutex_unlock(&imem->base.mutex); + return 0; +} + +int +nvkm_instmem_create_(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, int length, void **pobject) +{ + struct nvkm_instmem *imem; + int ret; + + ret = nvkm_subdev_create_(parent, engine, oclass, 0, "INSTMEM", + "instmem", length, pobject); + imem = *pobject; + if (ret) + return ret; + + INIT_LIST_HEAD(&imem->list); + imem->alloc = nvkm_instmem_alloc; + return 0; +} |