499 lines
13 KiB
C
499 lines
13 KiB
C
/*
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* Copyright 2012 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 <core/object.h>
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#include <core/enum.h>
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#include <subdev/fb.h>
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#include <subdev/bios.h>
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struct nv50_fb_priv {
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struct nouveau_fb base;
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struct page *r100c08_page;
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dma_addr_t r100c08;
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};
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static int types[0x80] = {
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1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0,
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1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 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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1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 0, 0,
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0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 2, 2, 2, 2,
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1, 0, 2, 0, 1, 0, 2, 0, 1, 1, 2, 2, 1, 1, 0, 0
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};
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static bool
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nv50_fb_memtype_valid(struct nouveau_fb *pfb, u32 memtype)
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{
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return types[(memtype & 0xff00) >> 8] != 0;
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}
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static u32
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nv50_fb_vram_rblock(struct nouveau_fb *pfb)
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{
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int i, parts, colbits, rowbitsa, rowbitsb, banks;
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u64 rowsize, predicted;
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u32 r0, r4, rt, ru, rblock_size;
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r0 = nv_rd32(pfb, 0x100200);
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r4 = nv_rd32(pfb, 0x100204);
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rt = nv_rd32(pfb, 0x100250);
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ru = nv_rd32(pfb, 0x001540);
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nv_debug(pfb, "memcfg 0x%08x 0x%08x 0x%08x 0x%08x\n", r0, r4, rt, ru);
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for (i = 0, parts = 0; i < 8; i++) {
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if (ru & (0x00010000 << i))
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parts++;
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}
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colbits = (r4 & 0x0000f000) >> 12;
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rowbitsa = ((r4 & 0x000f0000) >> 16) + 8;
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rowbitsb = ((r4 & 0x00f00000) >> 20) + 8;
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banks = 1 << (((r4 & 0x03000000) >> 24) + 2);
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rowsize = parts * banks * (1 << colbits) * 8;
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predicted = rowsize << rowbitsa;
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if (r0 & 0x00000004)
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predicted += rowsize << rowbitsb;
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if (predicted != pfb->ram.size) {
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nv_warn(pfb, "memory controller reports %d MiB VRAM\n",
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(u32)(pfb->ram.size >> 20));
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}
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rblock_size = rowsize;
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if (rt & 1)
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rblock_size *= 3;
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nv_debug(pfb, "rblock %d bytes\n", rblock_size);
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return rblock_size;
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}
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static int
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nv50_fb_vram_init(struct nouveau_fb *pfb)
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{
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struct nouveau_device *device = nv_device(pfb);
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struct nouveau_bios *bios = nouveau_bios(device);
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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 size, tags = 0;
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int ret;
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pfb->ram.size = nv_rd32(pfb, 0x10020c);
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pfb->ram.size = (pfb->ram.size & 0xffffff00) |
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((pfb->ram.size & 0x000000ff) << 32);
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size = (pfb->ram.size >> 12) - rsvd_head - rsvd_tail;
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switch (device->chipset) {
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case 0xaa:
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case 0xac:
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case 0xaf: /* IGPs, no reordering, no real VRAM */
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ret = nouveau_mm_init(&pfb->vram, rsvd_head, size, 1);
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if (ret)
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return ret;
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pfb->ram.type = NV_MEM_TYPE_STOLEN;
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pfb->ram.stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
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break;
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default:
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switch (nv_rd32(pfb, 0x100714) & 0x00000007) {
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case 0: pfb->ram.type = NV_MEM_TYPE_DDR1; break;
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case 1:
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if (nouveau_fb_bios_memtype(bios) == NV_MEM_TYPE_DDR3)
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pfb->ram.type = NV_MEM_TYPE_DDR3;
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else
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pfb->ram.type = NV_MEM_TYPE_DDR2;
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break;
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case 2: pfb->ram.type = NV_MEM_TYPE_GDDR3; break;
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case 3: pfb->ram.type = NV_MEM_TYPE_GDDR4; break;
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case 4: pfb->ram.type = NV_MEM_TYPE_GDDR5; break;
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default:
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break;
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}
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ret = nouveau_mm_init(&pfb->vram, rsvd_head, size,
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nv50_fb_vram_rblock(pfb) >> 12);
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if (ret)
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return ret;
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pfb->ram.ranks = (nv_rd32(pfb, 0x100200) & 0x4) ? 2 : 1;
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tags = nv_rd32(pfb, 0x100320);
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break;
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}
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return tags;
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}
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static int
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nv50_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin,
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u32 memtype, struct nouveau_mem **pmem)
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{
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struct nv50_fb_priv *priv = (void *)pfb;
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struct nouveau_mm *heap = &priv->base.vram;
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struct nouveau_mm *tags = &priv->base.tags;
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struct nouveau_mm_node *r;
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struct nouveau_mem *mem;
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int comp = (memtype & 0x300) >> 8;
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int type = (memtype & 0x07f);
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int back = (memtype & 0x800);
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int min, max, ret;
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max = (size >> 12);
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min = ncmin ? (ncmin >> 12) : max;
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align >>= 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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mutex_lock(&pfb->base.mutex);
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if (comp) {
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if (align == 16) {
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int n = (max >> 4) * comp;
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ret = nouveau_mm_head(tags, 1, n, n, 1, &mem->tag);
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if (ret)
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mem->tag = NULL;
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}
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if (unlikely(!mem->tag))
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comp = 0;
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}
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INIT_LIST_HEAD(&mem->regions);
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mem->memtype = (comp << 7) | type;
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mem->size = max;
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type = types[type];
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do {
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if (back)
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ret = nouveau_mm_tail(heap, type, max, min, align, &r);
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else
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ret = nouveau_mm_head(heap, type, max, min, align, &r);
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if (ret) {
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mutex_unlock(&pfb->base.mutex);
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pfb->ram.put(pfb, &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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max -= r->length;
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} while (max);
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mutex_unlock(&pfb->base.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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void
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nv50_fb_vram_del(struct nouveau_fb *pfb, struct nouveau_mem **pmem)
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{
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struct nv50_fb_priv *priv = (void *)pfb;
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struct nouveau_mm_node *this;
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struct nouveau_mem *mem;
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mem = *pmem;
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*pmem = NULL;
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if (unlikely(mem == NULL))
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return;
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mutex_lock(&pfb->base.mutex);
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while (!list_empty(&mem->regions)) {
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this = list_first_entry(&mem->regions, typeof(*this), rl_entry);
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list_del(&this->rl_entry);
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nouveau_mm_free(&priv->base.vram, &this);
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}
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nouveau_mm_free(&priv->base.tags, &mem->tag);
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mutex_unlock(&pfb->base.mutex);
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kfree(mem);
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}
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static const struct nouveau_enum vm_dispatch_subclients[] = {
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{ 0x00000000, "GRCTX", NULL },
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{ 0x00000001, "NOTIFY", NULL },
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{ 0x00000002, "QUERY", NULL },
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{ 0x00000003, "COND", NULL },
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{ 0x00000004, "M2M_IN", NULL },
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{ 0x00000005, "M2M_OUT", NULL },
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{ 0x00000006, "M2M_NOTIFY", NULL },
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{}
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};
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static const struct nouveau_enum vm_ccache_subclients[] = {
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{ 0x00000000, "CB", NULL },
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{ 0x00000001, "TIC", NULL },
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{ 0x00000002, "TSC", NULL },
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{}
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};
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static const struct nouveau_enum vm_prop_subclients[] = {
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{ 0x00000000, "RT0", NULL },
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{ 0x00000001, "RT1", NULL },
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{ 0x00000002, "RT2", NULL },
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{ 0x00000003, "RT3", NULL },
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{ 0x00000004, "RT4", NULL },
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{ 0x00000005, "RT5", NULL },
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{ 0x00000006, "RT6", NULL },
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{ 0x00000007, "RT7", NULL },
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{ 0x00000008, "ZETA", NULL },
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{ 0x00000009, "LOCAL", NULL },
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{ 0x0000000a, "GLOBAL", NULL },
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{ 0x0000000b, "STACK", NULL },
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{ 0x0000000c, "DST2D", NULL },
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{}
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};
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static const struct nouveau_enum vm_pfifo_subclients[] = {
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{ 0x00000000, "PUSHBUF", NULL },
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{ 0x00000001, "SEMAPHORE", NULL },
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{}
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};
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static const struct nouveau_enum vm_bar_subclients[] = {
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{ 0x00000000, "FB", NULL },
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{ 0x00000001, "IN", NULL },
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{}
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};
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static const struct nouveau_enum vm_client[] = {
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{ 0x00000000, "STRMOUT", NULL },
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{ 0x00000003, "DISPATCH", vm_dispatch_subclients },
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{ 0x00000004, "PFIFO_WRITE", NULL },
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{ 0x00000005, "CCACHE", vm_ccache_subclients },
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{ 0x00000006, "PPPP", NULL },
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{ 0x00000007, "CLIPID", NULL },
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{ 0x00000008, "PFIFO_READ", NULL },
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{ 0x00000009, "VFETCH", NULL },
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{ 0x0000000a, "TEXTURE", NULL },
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{ 0x0000000b, "PROP", vm_prop_subclients },
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{ 0x0000000c, "PVP", NULL },
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{ 0x0000000d, "PBSP", NULL },
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{ 0x0000000e, "PCRYPT", NULL },
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{ 0x0000000f, "PCOUNTER", NULL },
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{ 0x00000011, "PDAEMON", NULL },
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{}
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};
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static const struct nouveau_enum vm_engine[] = {
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{ 0x00000000, "PGRAPH", NULL },
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{ 0x00000001, "PVP", NULL },
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{ 0x00000004, "PEEPHOLE", NULL },
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{ 0x00000005, "PFIFO", vm_pfifo_subclients },
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{ 0x00000006, "BAR", vm_bar_subclients },
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{ 0x00000008, "PPPP", NULL },
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{ 0x00000009, "PBSP", NULL },
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{ 0x0000000a, "PCRYPT", NULL },
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{ 0x0000000b, "PCOUNTER", NULL },
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{ 0x0000000c, "SEMAPHORE_BG", NULL },
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{ 0x0000000d, "PCOPY", NULL },
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{ 0x0000000e, "PDAEMON", NULL },
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{}
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};
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static const struct nouveau_enum vm_fault[] = {
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{ 0x00000000, "PT_NOT_PRESENT", NULL },
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{ 0x00000001, "PT_TOO_SHORT", NULL },
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{ 0x00000002, "PAGE_NOT_PRESENT", NULL },
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{ 0x00000003, "PAGE_SYSTEM_ONLY", NULL },
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{ 0x00000004, "PAGE_READ_ONLY", NULL },
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{ 0x00000006, "NULL_DMAOBJ", NULL },
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{ 0x00000007, "WRONG_MEMTYPE", NULL },
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{ 0x0000000b, "VRAM_LIMIT", NULL },
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{ 0x0000000f, "DMAOBJ_LIMIT", NULL },
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{}
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};
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static void
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nv50_fb_intr(struct nouveau_subdev *subdev)
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{
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struct nouveau_device *device = nv_device(subdev);
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struct nv50_fb_priv *priv = (void *)subdev;
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const struct nouveau_enum *en, *cl;
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u32 trap[6], idx, chan;
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u8 st0, st1, st2, st3;
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int i;
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idx = nv_rd32(priv, 0x100c90);
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if (!(idx & 0x80000000))
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return;
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idx &= 0x00ffffff;
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for (i = 0; i < 6; i++) {
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nv_wr32(priv, 0x100c90, idx | i << 24);
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trap[i] = nv_rd32(priv, 0x100c94);
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}
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nv_wr32(priv, 0x100c90, idx | 0x80000000);
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/* decode status bits into something more useful */
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if (device->chipset < 0xa3 ||
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device->chipset == 0xaa || device->chipset == 0xac) {
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st0 = (trap[0] & 0x0000000f) >> 0;
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st1 = (trap[0] & 0x000000f0) >> 4;
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st2 = (trap[0] & 0x00000f00) >> 8;
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st3 = (trap[0] & 0x0000f000) >> 12;
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} else {
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st0 = (trap[0] & 0x000000ff) >> 0;
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st1 = (trap[0] & 0x0000ff00) >> 8;
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st2 = (trap[0] & 0x00ff0000) >> 16;
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st3 = (trap[0] & 0xff000000) >> 24;
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}
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chan = (trap[2] << 16) | trap[1];
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nv_error(priv, "trapped %s at 0x%02x%04x%04x on channel 0x%08x ",
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(trap[5] & 0x00000100) ? "read" : "write",
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trap[5] & 0xff, trap[4] & 0xffff, trap[3] & 0xffff, chan);
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en = nouveau_enum_find(vm_engine, st0);
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if (en)
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printk("%s/", en->name);
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else
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printk("%02x/", st0);
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cl = nouveau_enum_find(vm_client, st2);
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if (cl)
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printk("%s/", cl->name);
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else
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printk("%02x/", st2);
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if (cl && cl->data) cl = nouveau_enum_find(cl->data, st3);
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else if (en && en->data) cl = nouveau_enum_find(en->data, st3);
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else cl = NULL;
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if (cl)
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printk("%s", cl->name);
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else
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printk("%02x", st3);
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printk(" reason: ");
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en = nouveau_enum_find(vm_fault, st1);
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if (en)
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printk("%s\n", en->name);
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else
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printk("0x%08x\n", st1);
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}
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static int
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nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
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struct nouveau_oclass *oclass, void *data, u32 size,
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struct nouveau_object **pobject)
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{
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struct nouveau_device *device = nv_device(parent);
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struct nv50_fb_priv *priv;
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int ret;
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ret = nouveau_fb_create(parent, engine, oclass, &priv);
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*pobject = nv_object(priv);
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if (ret)
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return ret;
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priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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if (priv->r100c08_page) {
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priv->r100c08 = pci_map_page(device->pdev, priv->r100c08_page,
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0, PAGE_SIZE,
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PCI_DMA_BIDIRECTIONAL);
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if (pci_dma_mapping_error(device->pdev, priv->r100c08))
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nv_warn(priv, "failed 0x100c08 page map\n");
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} else {
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nv_warn(priv, "failed 0x100c08 page alloc\n");
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}
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priv->base.memtype_valid = nv50_fb_memtype_valid;
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priv->base.ram.init = nv50_fb_vram_init;
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priv->base.ram.get = nv50_fb_vram_new;
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priv->base.ram.put = nv50_fb_vram_del;
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nv_subdev(priv)->intr = nv50_fb_intr;
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return nouveau_fb_preinit(&priv->base);
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}
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static void
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nv50_fb_dtor(struct nouveau_object *object)
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{
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struct nouveau_device *device = nv_device(object);
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struct nv50_fb_priv *priv = (void *)object;
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if (priv->r100c08_page) {
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pci_unmap_page(device->pdev, priv->r100c08, PAGE_SIZE,
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PCI_DMA_BIDIRECTIONAL);
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__free_page(priv->r100c08_page);
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}
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nouveau_fb_destroy(&priv->base);
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}
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static int
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nv50_fb_init(struct nouveau_object *object)
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{
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struct nouveau_device *device = nv_device(object);
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struct nv50_fb_priv *priv = (void *)object;
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int ret;
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ret = nouveau_fb_init(&priv->base);
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if (ret)
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return ret;
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/* Not a clue what this is exactly. Without pointing it at a
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* scratch page, VRAM->GART blits with M2MF (as in DDX DFS)
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* cause IOMMU "read from address 0" errors (rh#561267)
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*/
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nv_wr32(priv, 0x100c08, priv->r100c08 >> 8);
|
|
|
|
/* This is needed to get meaningful information from 100c90
|
|
* on traps. No idea what these values mean exactly. */
|
|
switch (device->chipset) {
|
|
case 0x50:
|
|
nv_wr32(priv, 0x100c90, 0x000707ff);
|
|
break;
|
|
case 0xa3:
|
|
case 0xa5:
|
|
case 0xa8:
|
|
nv_wr32(priv, 0x100c90, 0x000d0fff);
|
|
break;
|
|
case 0xaf:
|
|
nv_wr32(priv, 0x100c90, 0x089d1fff);
|
|
break;
|
|
default:
|
|
nv_wr32(priv, 0x100c90, 0x001d07ff);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct nouveau_oclass
|
|
nv50_fb_oclass = {
|
|
.handle = NV_SUBDEV(FB, 0x50),
|
|
.ofuncs = &(struct nouveau_ofuncs) {
|
|
.ctor = nv50_fb_ctor,
|
|
.dtor = nv50_fb_dtor,
|
|
.init = nv50_fb_init,
|
|
.fini = _nouveau_fb_fini,
|
|
},
|
|
};
|