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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/image.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/image.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/image.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/image.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/image.c new file mode 100644 index 000000000..1815540a0 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/image.c @@ -0,0 +1,77 @@ +/* + * Copyright 2014 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 <bskeggs@redhat.com> + */ +#include <subdev/bios.h> +#include <subdev/bios/image.h> +#include <subdev/bios/pcir.h> +#include <subdev/bios/npde.h> + +static bool +nvbios_imagen(struct nvkm_bios *bios, struct nvbios_image *image) +{ + struct nvbios_pcirT pcir; + struct nvbios_npdeT npde; + u8 ver; + u16 hdr; + u32 data; + + switch ((data = nv_ro16(bios, image->base + 0x00))) { + case 0xaa55: + case 0xbb77: + case 0x4e56: /* NV */ + break; + default: + nv_debug(bios, "%08x: ROM signature (%04x) unknown\n", + image->base, data); + return false; + } + + if (!(data = nvbios_pcirTp(bios, image->base, &ver, &hdr, &pcir))) + return false; + image->size = pcir.image_size; + image->type = pcir.image_type; + image->last = pcir.last; + + if (image->type != 0x70) { + if (!(data = nvbios_npdeTp(bios, image->base, &npde))) + return true; + image->size = npde.image_size; + image->last = npde.last; + } else { + image->last = true; + } + + return true; +} + +bool +nvbios_image(struct nvkm_bios *bios, int idx, struct nvbios_image *image) +{ + memset(image, 0x00, sizeof(*image)); + do { + image->base += image->size; + if (image->last || !nvbios_imagen(bios, image)) + return false; + } while(idx--); + return true; +} |