| /* |
| * Copyright 2010 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 "drmP.h" |
| #include "nouveau_drv.h" |
| #include "nouveau_mm.h" |
| |
| /* 0 = unsupported |
| * 1 = non-compressed |
| * 3 = compressed |
| */ |
| static const u8 types[256] = { |
| 1, 1, 3, 3, 3, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, |
| 0, 1, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, |
| 3, 3, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 1, 1, 1, 1, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, |
| 3, 3, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, |
| 3, 3, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 3, 0, 3, |
| 3, 0, 3, 3, 3, 3, 3, 0, 0, 3, 0, 3, 0, 3, 3, 0, |
| 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 0 |
| }; |
| |
| bool |
| nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags) |
| { |
| u8 memtype = (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) >> 8; |
| return likely((types[memtype] == 1)); |
| } |
| |
| int |
| nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin, |
| u32 type, struct nouveau_mem **pmem) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nouveau_mm *mm = &dev_priv->engine.vram.mm; |
| struct nouveau_mm_node *r; |
| struct nouveau_mem *mem; |
| int ret; |
| |
| size >>= 12; |
| align >>= 12; |
| ncmin >>= 12; |
| |
| mem = kzalloc(sizeof(*mem), GFP_KERNEL); |
| if (!mem) |
| return -ENOMEM; |
| |
| INIT_LIST_HEAD(&mem->regions); |
| mem->dev = dev_priv->dev; |
| mem->memtype = (type & 0xff); |
| mem->size = size; |
| |
| mutex_lock(&mm->mutex); |
| do { |
| ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r); |
| if (ret) { |
| mutex_unlock(&mm->mutex); |
| nv50_vram_del(dev, &mem); |
| return ret; |
| } |
| |
| list_add_tail(&r->rl_entry, &mem->regions); |
| size -= r->length; |
| } while (size); |
| mutex_unlock(&mm->mutex); |
| |
| r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry); |
| mem->offset = (u64)r->offset << 12; |
| *pmem = mem; |
| return 0; |
| } |
| |
| int |
| nvc0_vram_init(struct drm_device *dev) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nouveau_vram_engine *vram = &dev_priv->engine.vram; |
| const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ |
| const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ |
| u32 parts = nv_rd32(dev, 0x121c74); |
| u32 bsize = nv_rd32(dev, 0x10f20c); |
| u32 offset, length; |
| bool uniform = true; |
| int ret, part; |
| |
| NV_DEBUG(dev, "0x100800: 0x%08x\n", nv_rd32(dev, 0x100800)); |
| NV_DEBUG(dev, "parts 0x%08x bcast_mem_amount 0x%08x\n", parts, bsize); |
| |
| dev_priv->vram_type = nouveau_mem_vbios_type(dev); |
| dev_priv->vram_rank_B = !!(nv_rd32(dev, 0x10f200) & 0x00000004); |
| |
| /* read amount of vram attached to each memory controller */ |
| part = 0; |
| while (parts) { |
| u32 psize = nv_rd32(dev, 0x11020c + (part++ * 0x1000)); |
| if (psize == 0) |
| continue; |
| parts--; |
| |
| if (psize != bsize) { |
| if (psize < bsize) |
| bsize = psize; |
| uniform = false; |
| } |
| |
| NV_DEBUG(dev, "%d: mem_amount 0x%08x\n", part, psize); |
| dev_priv->vram_size += (u64)psize << 20; |
| } |
| |
| /* if all controllers have the same amount attached, there's no holes */ |
| if (uniform) { |
| offset = rsvd_head; |
| length = (dev_priv->vram_size >> 12) - rsvd_head - rsvd_tail; |
| return nouveau_mm_init(&vram->mm, offset, length, 1); |
| } |
| |
| /* otherwise, address lowest common amount from 0GiB */ |
| ret = nouveau_mm_init(&vram->mm, rsvd_head, (bsize << 8) * parts, 1); |
| if (ret) |
| return ret; |
| |
| /* and the rest starting from (8GiB + common_size) */ |
| offset = (0x0200000000ULL >> 12) + (bsize << 8); |
| length = (dev_priv->vram_size >> 12) - (bsize << 8) - rsvd_tail; |
| |
| ret = nouveau_mm_init(&vram->mm, offset, length, 0); |
| if (ret) { |
| nouveau_mm_fini(&vram->mm); |
| return ret; |
| } |
| |
| return 0; |
| } |