diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c new file mode 100644 index 000000000..25603b01d --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.c @@ -0,0 +1,230 @@ +/* + * 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 + */ +#define nv04_instmem(p) container_of((p), struct nv04_instmem, base) +#include "priv.h" + +#include <core/ramht.h> + +struct nv04_instmem { + struct nvkm_instmem base; + struct nvkm_mm heap; +}; + +/****************************************************************************** + * instmem object implementation + *****************************************************************************/ +#define nv04_instobj(p) container_of((p), struct nv04_instobj, base.memory) + +struct nv04_instobj { + struct nvkm_instobj base; + struct nv04_instmem *imem; + struct nvkm_mm_node *node; +}; + +static void +nv04_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) +{ + struct nv04_instobj *iobj = nv04_instobj(memory); + struct nvkm_device *device = iobj->imem->base.subdev.device; + nvkm_wr32(device, 0x700000 + iobj->node->offset + offset, data); +} + +static u32 +nv04_instobj_rd32(struct nvkm_memory *memory, u64 offset) +{ + struct nv04_instobj *iobj = nv04_instobj(memory); + struct nvkm_device *device = iobj->imem->base.subdev.device; + return nvkm_rd32(device, 0x700000 + iobj->node->offset + offset); +} + +static const struct nvkm_memory_ptrs +nv04_instobj_ptrs = { + .rd32 = nv04_instobj_rd32, + .wr32 = nv04_instobj_wr32, +}; + +static void +nv04_instobj_release(struct nvkm_memory *memory) +{ +} + +static void __iomem * +nv04_instobj_acquire(struct nvkm_memory *memory) +{ + struct nv04_instobj *iobj = nv04_instobj(memory); + struct nvkm_device *device = iobj->imem->base.subdev.device; + return device->pri + 0x700000 + iobj->node->offset; +} + +static u64 +nv04_instobj_size(struct nvkm_memory *memory) +{ + return nv04_instobj(memory)->node->length; +} + +static u64 +nv04_instobj_addr(struct nvkm_memory *memory) +{ + return nv04_instobj(memory)->node->offset; +} + +static enum nvkm_memory_target +nv04_instobj_target(struct nvkm_memory *memory) +{ + return NVKM_MEM_TARGET_INST; +} + +static void * +nv04_instobj_dtor(struct nvkm_memory *memory) +{ + struct nv04_instobj *iobj = nv04_instobj(memory); + mutex_lock(&iobj->imem->base.mutex); + nvkm_mm_free(&iobj->imem->heap, &iobj->node); + mutex_unlock(&iobj->imem->base.mutex); + nvkm_instobj_dtor(&iobj->imem->base, &iobj->base); + return iobj; +} + +static const struct nvkm_memory_func +nv04_instobj_func = { + .dtor = nv04_instobj_dtor, + .target = nv04_instobj_target, + .size = nv04_instobj_size, + .addr = nv04_instobj_addr, + .acquire = nv04_instobj_acquire, + .release = nv04_instobj_release, +}; + +static int +nv04_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero, + struct nvkm_memory **pmemory) +{ + struct nv04_instmem *imem = nv04_instmem(base); + struct nv04_instobj *iobj; + int ret; + + if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) + return -ENOMEM; + *pmemory = &iobj->base.memory; + + nvkm_instobj_ctor(&nv04_instobj_func, &imem->base, &iobj->base); + iobj->base.memory.ptrs = &nv04_instobj_ptrs; + iobj->imem = imem; + + mutex_lock(&imem->base.mutex); + ret = nvkm_mm_head(&imem->heap, 0, 1, size, size, align ? align : 1, &iobj->node); + mutex_unlock(&imem->base.mutex); + return ret; +} + +/****************************************************************************** + * instmem subdev implementation + *****************************************************************************/ + +static u32 +nv04_instmem_rd32(struct nvkm_instmem *imem, u32 addr) +{ + return nvkm_rd32(imem->subdev.device, 0x700000 + addr); +} + +static void +nv04_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data) +{ + nvkm_wr32(imem->subdev.device, 0x700000 + addr, data); +} + +static int +nv04_instmem_oneinit(struct nvkm_instmem *base) +{ + struct nv04_instmem *imem = nv04_instmem(base); + struct nvkm_device *device = imem->base.subdev.device; + int ret; + + /* PRAMIN aperture maps over the end of VRAM, reserve it */ + imem->base.reserved = 512 * 1024; + + ret = nvkm_mm_init(&imem->heap, 0, 0, imem->base.reserved, 1); + if (ret) + return ret; + + /* 0x00000-0x10000: reserve for probable vbios image */ + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x10000, 0, false, + &imem->base.vbios); + if (ret) + return ret; + + /* 0x10000-0x18000: reserve for RAMHT */ + ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht); + if (ret) + return ret; + + /* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */ + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00800, 0, true, + &imem->base.ramfc); + if (ret) + return ret; + + /* 0x18800-0x18a00: reserve for RAMRO */ + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00200, 0, false, + &imem->base.ramro); + if (ret) + return ret; + + return 0; +} + +static void * +nv04_instmem_dtor(struct nvkm_instmem *base) +{ + struct nv04_instmem *imem = nv04_instmem(base); + nvkm_memory_unref(&imem->base.ramfc); + nvkm_memory_unref(&imem->base.ramro); + nvkm_ramht_del(&imem->base.ramht); + nvkm_memory_unref(&imem->base.vbios); + nvkm_mm_fini(&imem->heap); + return imem; +} + +static const struct nvkm_instmem_func +nv04_instmem = { + .dtor = nv04_instmem_dtor, + .oneinit = nv04_instmem_oneinit, + .rd32 = nv04_instmem_rd32, + .wr32 = nv04_instmem_wr32, + .memory_new = nv04_instobj_new, + .zero = false, +}; + +int +nv04_instmem_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_instmem **pimem) +{ + struct nv04_instmem *imem; + + if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL))) + return -ENOMEM; + nvkm_instmem_ctor(&nv04_instmem, device, type, inst, &imem->base); + *pimem = &imem->base; + return 0; +} |