160 lines
4.7 KiB
C
160 lines
4.7 KiB
C
/*
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* Copyright 2010 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "drmP.h"
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#include "nouveau_drv.h"
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#include "nouveau_mm.h"
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/* 0 = unsupported
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* 1 = non-compressed
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* 3 = compressed
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*/
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static const u8 types[256] = {
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1, 1, 3, 3, 3, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0,
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0, 1, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3,
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3, 3, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 1, 1, 1, 1, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
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3, 3, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3,
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3, 3, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 3, 0, 3,
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3, 0, 3, 3, 3, 3, 3, 0, 0, 3, 0, 3, 0, 3, 3, 0,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 0
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};
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bool
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nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
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{
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u8 memtype = (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) >> 8;
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return likely((types[memtype] == 1));
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}
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int
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nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin,
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u32 type, struct nouveau_mem **pmem)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_mm *mm = &dev_priv->engine.vram.mm;
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struct nouveau_mm_node *r;
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struct nouveau_mem *mem;
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int ret;
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size >>= 12;
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align >>= 12;
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ncmin >>= 12;
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mem = kzalloc(sizeof(*mem), GFP_KERNEL);
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if (!mem)
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return -ENOMEM;
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INIT_LIST_HEAD(&mem->regions);
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mem->dev = dev_priv->dev;
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mem->memtype = (type & 0xff);
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mem->size = size;
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mutex_lock(&mm->mutex);
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do {
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ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r);
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if (ret) {
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mutex_unlock(&mm->mutex);
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nv50_vram_del(dev, &mem);
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return ret;
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}
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list_add_tail(&r->rl_entry, &mem->regions);
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size -= r->length;
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} while (size);
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mutex_unlock(&mm->mutex);
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r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry);
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mem->offset = (u64)r->offset << 12;
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*pmem = mem;
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return 0;
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}
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int
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nvc0_vram_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_vram_engine *vram = &dev_priv->engine.vram;
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const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
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const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
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u32 parts = nv_rd32(dev, 0x121c74);
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u32 bsize = nv_rd32(dev, 0x10f20c);
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u32 offset, length;
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bool uniform = true;
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int ret, part;
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NV_DEBUG(dev, "0x100800: 0x%08x\n", nv_rd32(dev, 0x100800));
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NV_DEBUG(dev, "parts 0x%08x bcast_mem_amount 0x%08x\n", parts, bsize);
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/* read amount of vram attached to each memory controller */
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part = 0;
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while (parts) {
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u32 psize = nv_rd32(dev, 0x11020c + (part++ * 0x1000));
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if (psize == 0)
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continue;
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parts--;
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if (psize != bsize) {
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if (psize < bsize)
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bsize = psize;
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uniform = false;
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}
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NV_DEBUG(dev, "%d: mem_amount 0x%08x\n", part, psize);
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dev_priv->vram_size += (u64)psize << 20;
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}
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/* if all controllers have the same amount attached, there's no holes */
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if (uniform) {
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offset = rsvd_head;
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length = (dev_priv->vram_size >> 12) - rsvd_head - rsvd_tail;
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return nouveau_mm_init(&vram->mm, offset, length, 1);
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}
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/* otherwise, address lowest common amount from 0GiB */
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ret = nouveau_mm_init(&vram->mm, rsvd_head, (bsize << 8) * parts, 1);
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if (ret)
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return ret;
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/* and the rest starting from (8GiB + common_size) */
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offset = (0x0200000000ULL >> 12) + (bsize << 8);
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length = (dev_priv->vram_size >> 12) - (bsize << 8) - rsvd_tail;
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ret = nouveau_mm_init(&vram->mm, offset, length, 0);
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if (ret) {
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nouveau_mm_fini(&vram->mm);
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return ret;
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}
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return 0;
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}
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