diff options
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/fb/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/fb/gf100.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c new file mode 100644 index 000000000..d51aa0237 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c @@ -0,0 +1,122 @@ +/* + * 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 "gf100.h" + +#include <core/device.h> + +extern const u8 gf100_pte_storage_type_map[256]; + +bool +gf100_fb_memtype_valid(struct nvkm_fb *pfb, u32 tile_flags) +{ + u8 memtype = (tile_flags & 0x0000ff00) >> 8; + return likely((gf100_pte_storage_type_map[memtype] != 0xff)); +} + +static void +gf100_fb_intr(struct nvkm_subdev *subdev) +{ + struct gf100_fb_priv *priv = (void *)subdev; + u32 intr = nv_rd32(priv, 0x000100); + if (intr & 0x08000000) { + nv_debug(priv, "PFFB intr\n"); + intr &= ~0x08000000; + } + if (intr & 0x00002000) { + nv_debug(priv, "PBFB intr\n"); + intr &= ~0x00002000; + } +} + +int +gf100_fb_init(struct nvkm_object *object) +{ + struct gf100_fb_priv *priv = (void *)object; + int ret; + + ret = nvkm_fb_init(&priv->base); + if (ret) + return ret; + + if (priv->r100c10_page) + nv_wr32(priv, 0x100c10, priv->r100c10 >> 8); + + nv_mask(priv, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */ + return 0; +} + +void +gf100_fb_dtor(struct nvkm_object *object) +{ + struct nvkm_device *device = nv_device(object); + struct gf100_fb_priv *priv = (void *)object; + + if (priv->r100c10_page) { + dma_unmap_page(nv_device_base(device), priv->r100c10, PAGE_SIZE, + DMA_BIDIRECTIONAL); + __free_page(priv->r100c10_page); + } + + nvkm_fb_destroy(&priv->base); +} + +int +gf100_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + struct nvkm_device *device = nv_device(parent); + struct gf100_fb_priv *priv; + int ret; + + ret = nvkm_fb_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); + if (priv->r100c10_page) { + priv->r100c10 = dma_map_page(nv_device_base(device), + priv->r100c10_page, 0, PAGE_SIZE, + DMA_BIDIRECTIONAL); + if (dma_mapping_error(nv_device_base(device), priv->r100c10)) + return -EFAULT; + } + + nv_subdev(priv)->intr = gf100_fb_intr; + return 0; +} + +struct nvkm_oclass * +gf100_fb_oclass = &(struct nvkm_fb_impl) { + .base.handle = NV_SUBDEV(FB, 0xc0), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = gf100_fb_ctor, + .dtor = gf100_fb_dtor, + .init = gf100_fb_init, + .fini = _nvkm_fb_fini, + }, + .memtype = gf100_fb_memtype_valid, + .ram = &gf100_ram_oclass, +}.base; |