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author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.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/bios/shadowof.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c new file mode 100644 index 000000000..4c19a7dba --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c @@ -0,0 +1,72 @@ +/* + * 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. + * + */ +#include "priv.h" + +#include <core/device.h> + +#if defined(__powerpc__) +struct priv { + const void __iomem *data; + int size; +}; + +static u32 +of_read(void *data, u32 offset, u32 length, struct nvkm_bios *bios) +{ + struct priv *priv = data; + if (offset + length <= priv->size) { + memcpy_fromio(bios->data + offset, priv->data + offset, length); + return length; + } + return 0; +} + +static void * +of_init(struct nvkm_bios *bios, const char *name) +{ + struct pci_dev *pdev = nv_device(bios)->pdev; + struct device_node *dn; + struct priv *priv; + if (!(dn = pci_device_to_OF_node(pdev))) + return ERR_PTR(-ENODEV); + if (!(priv = kzalloc(sizeof(*priv), GFP_KERNEL))) + return ERR_PTR(-ENOMEM); + if ((priv->data = of_get_property(dn, "NVDA,BMP", &priv->size))) + return priv; + kfree(priv); + return ERR_PTR(-EINVAL); +} + +const struct nvbios_source +nvbios_of = { + .name = "OpenFirmware", + .init = of_init, + .fini = (void(*)(void *))kfree, + .read = of_read, + .rw = false, +}; +#else +const struct nvbios_source +nvbios_of = { +}; +#endif |