diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c new file mode 100644 index 000000000000..b42b8588fc0e --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.c @@ -0,0 +1,136 @@ +/* + * 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 "nv04.h" + +#include <core/ramht.h> +#include <engine/gr/nv40.h> + +/****************************************************************************** + * instmem subdev implementation + *****************************************************************************/ + +static u32 +nv40_instmem_rd32(struct nvkm_object *object, u64 addr) +{ + struct nv04_instmem_priv *priv = (void *)object; + return ioread32_native(priv->iomem + addr); +} + +static void +nv40_instmem_wr32(struct nvkm_object *object, u64 addr, u32 data) +{ + struct nv04_instmem_priv *priv = (void *)object; + iowrite32_native(data, priv->iomem + addr); +} + +static int +nv40_instmem_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 nv04_instmem_priv *priv; + int ret, bar, vs; + + ret = nvkm_instmem_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + /* map bar */ + if (nv_device_resource_len(device, 2)) + bar = 2; + else + bar = 3; + + priv->iomem = ioremap(nv_device_resource_start(device, bar), + nv_device_resource_len(device, bar)); + if (!priv->iomem) { + nv_error(priv, "unable to map PRAMIN BAR\n"); + return -EFAULT; + } + + /* PRAMIN aperture maps over the end of vram, reserve enough space + * to fit graphics contexts for every channel, the magics come + * from engine/gr/nv40.c + */ + vs = hweight8((nv_rd32(priv, 0x001540) & 0x0000ff00) >> 8); + if (device->chipset == 0x40) priv->base.reserved = 0x6aa0 * vs; + else if (device->chipset < 0x43) priv->base.reserved = 0x4f00 * vs; + else if (nv44_gr_class(priv)) priv->base.reserved = 0x4980 * vs; + else priv->base.reserved = 0x4a40 * vs; + priv->base.reserved += 16 * 1024; + priv->base.reserved *= 32; /* per-channel */ + priv->base.reserved += 512 * 1024; /* pci(e)gart table */ + priv->base.reserved += 512 * 1024; /* object storage */ + + priv->base.reserved = round_up(priv->base.reserved, 4096); + + ret = nvkm_mm_init(&priv->heap, 0, priv->base.reserved, 1); + if (ret) + return ret; + + /* 0x00000-0x10000: reserve for probable vbios image */ + ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x10000, 0, 0, + &priv->vbios); + if (ret) + return ret; + + /* 0x10000-0x18000: reserve for RAMHT */ + ret = nvkm_ramht_new(nv_object(priv), NULL, 0x08000, 0, &priv->ramht); + if (ret) + return ret; + + /* 0x18000-0x18200: reserve for RAMRO + * 0x18200-0x20000: padding + */ + ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x08000, 0, 0, + &priv->ramro); + if (ret) + return ret; + + /* 0x20000-0x21000: reserve for RAMFC + * 0x21000-0x40000: padding and some unknown crap + */ + ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x20000, 0, + NVOBJ_FLAG_ZERO_ALLOC, &priv->ramfc); + if (ret) + return ret; + + return 0; +} + +struct nvkm_oclass * +nv40_instmem_oclass = &(struct nvkm_instmem_impl) { + .base.handle = NV_SUBDEV(INSTMEM, 0x40), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv40_instmem_ctor, + .dtor = nv04_instmem_dtor, + .init = _nvkm_instmem_init, + .fini = _nvkm_instmem_fini, + .rd32 = nv40_instmem_rd32, + .wr32 = nv40_instmem_wr32, + }, + .instobj = &nv04_instobj_oclass.base, +}.base; |