diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c new file mode 100644 index 000000000000..77a6fb725d3f --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c @@ -0,0 +1,215 @@ +/* + * 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 <core/gpuobj.h> + +#include <subdev/timer.h> +#include <subdev/bar.h> +#include <subdev/fb.h> +#include <subdev/vm.h> + +struct nvc0_bar_priv { + struct nouveau_bar base; + spinlock_t lock; + struct { + struct nouveau_gpuobj *mem; + struct nouveau_gpuobj *pgd; + struct nouveau_vm *vm; + } bar[2]; +}; + +static int +nvc0_bar_kmap(struct nouveau_bar *bar, struct nouveau_mem *mem, + u32 flags, struct nouveau_vma *vma) +{ + struct nvc0_bar_priv *priv = (void *)bar; + int ret; + + ret = nouveau_vm_get(priv->bar[0].vm, mem->size << 12, 12, flags, vma); + if (ret) + return ret; + + nouveau_vm_map(vma, mem); + nvc0_vm_flush_engine(nv_subdev(bar), priv->bar[0].pgd->addr, 5); + return 0; +} + +static int +nvc0_bar_umap(struct nouveau_bar *bar, struct nouveau_mem *mem, + u32 flags, struct nouveau_vma *vma) +{ + struct nvc0_bar_priv *priv = (void *)bar; + int ret; + + ret = nouveau_vm_get(priv->bar[1].vm, mem->size << 12, + mem->page_shift, flags, vma); + if (ret) + return ret; + + nouveau_vm_map(vma, mem); + nvc0_vm_flush_engine(nv_subdev(bar), priv->bar[1].pgd->addr, 5); + return 0; +} + +static void +nvc0_bar_unmap(struct nouveau_bar *bar, struct nouveau_vma *vma) +{ + struct nvc0_bar_priv *priv = (void *)bar; + int i = !(vma->vm == priv->bar[0].vm); + + nouveau_vm_unmap(vma); + nvc0_vm_flush_engine(nv_subdev(bar), priv->bar[i].pgd->addr, 5); + nouveau_vm_put(vma); +} + +static int +nvc0_bar_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nouveau_device *device = nv_device(parent); + struct pci_dev *pdev = device->pdev; + struct nvc0_bar_priv *priv; + struct nouveau_gpuobj *mem; + struct nouveau_vm *vm; + int ret; + + ret = nouveau_bar_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + /* BAR3 */ + ret = nouveau_gpuobj_new(parent, NULL, 0x1000, 0, 0, &priv->bar[0].mem); + mem = priv->bar[0].mem; + if (ret) + return ret; + + ret = nouveau_gpuobj_new(parent, NULL, 0x8000, 0, 0, &priv->bar[0].pgd); + if (ret) + return ret; + + ret = nouveau_vm_new(device, 0, pci_resource_len(pdev, 3), 0, &vm); + if (ret) + return ret; + + ret = nouveau_gpuobj_new(parent, NULL, + (pci_resource_len(pdev, 3) >> 12) * 8, + 0x1000, NVOBJ_FLAG_ZERO_ALLOC, + &vm->pgt[0].obj[0]); + vm->pgt[0].refcount[0] = 1; + if (ret) + return ret; + + ret = nouveau_vm_ref(vm, &priv->bar[0].vm, priv->bar[0].pgd); + nouveau_vm_ref(NULL, &vm, NULL); + if (ret) + return ret; + + nv_wo32(mem, 0x0200, lower_32_bits(priv->bar[0].pgd->addr)); + nv_wo32(mem, 0x0204, upper_32_bits(priv->bar[0].pgd->addr)); + nv_wo32(mem, 0x0208, lower_32_bits(pci_resource_len(pdev, 3) - 1)); + nv_wo32(mem, 0x020c, upper_32_bits(pci_resource_len(pdev, 3) - 1)); + + /* BAR1 */ + ret = nouveau_gpuobj_new(parent, NULL, 0x1000, 0, 0, &priv->bar[1].mem); + mem = priv->bar[1].mem; + if (ret) + return ret; + + ret = nouveau_gpuobj_new(parent, NULL, 0x8000, 0, 0, &priv->bar[1].pgd); + if (ret) + return ret; + + ret = nouveau_vm_new(device, 0, pci_resource_len(pdev, 1), 0, &vm); + if (ret) + return ret; + + ret = nouveau_vm_ref(vm, &priv->bar[1].vm, priv->bar[1].pgd); + nouveau_vm_ref(NULL, &vm, NULL); + if (ret) + return ret; + + nv_wo32(mem, 0x0200, lower_32_bits(priv->bar[1].pgd->addr)); + nv_wo32(mem, 0x0204, upper_32_bits(priv->bar[1].pgd->addr)); + nv_wo32(mem, 0x0208, lower_32_bits(pci_resource_len(pdev, 1) - 1)); + nv_wo32(mem, 0x020c, upper_32_bits(pci_resource_len(pdev, 1) - 1)); + + priv->base.alloc = nouveau_bar_alloc; + priv->base.kmap = nvc0_bar_kmap; + priv->base.umap = nvc0_bar_umap; + priv->base.unmap = nvc0_bar_unmap; + priv->base.flush = nv84_bar_flush; + spin_lock_init(&priv->lock); + return 0; +} + +static void +nvc0_bar_dtor(struct nouveau_object *object) +{ + struct nvc0_bar_priv *priv = (void *)object; + + nouveau_vm_ref(NULL, &priv->bar[1].vm, priv->bar[1].pgd); + nouveau_gpuobj_ref(NULL, &priv->bar[1].pgd); + nouveau_gpuobj_ref(NULL, &priv->bar[1].mem); + + if (priv->bar[0].vm) { + nouveau_gpuobj_ref(NULL, &priv->bar[0].vm->pgt[0].obj[0]); + nouveau_vm_ref(NULL, &priv->bar[0].vm, priv->bar[0].pgd); + } + nouveau_gpuobj_ref(NULL, &priv->bar[0].pgd); + nouveau_gpuobj_ref(NULL, &priv->bar[0].mem); + + nouveau_bar_destroy(&priv->base); +} + +static int +nvc0_bar_init(struct nouveau_object *object) +{ + struct nvc0_bar_priv *priv = (void *)object; + int ret; + + ret = nouveau_bar_init(&priv->base); + if (ret) + return ret; + + nv_mask(priv, 0x000200, 0x00000100, 0x00000000); + nv_mask(priv, 0x000200, 0x00000100, 0x00000100); + nv_mask(priv, 0x100c80, 0x00000001, 0x00000000); + + nv_wr32(priv, 0x001704, 0x80000000 | priv->bar[1].mem->addr >> 12); + nv_wr32(priv, 0x001714, 0xc0000000 | priv->bar[0].mem->addr >> 12); + return 0; +} + +struct nouveau_oclass +nvc0_bar_oclass = { + .handle = NV_SUBDEV(BAR, 0xc0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvc0_bar_ctor, + .dtor = nvc0_bar_dtor, + .init = nvc0_bar_init, + .fini = _nouveau_bar_fini, + }, +}; |