mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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100 lines
2.7 KiB
C
100 lines
2.7 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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bool
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nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
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{
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switch (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) {
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case 0x0000:
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case 0xfe00:
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case 0xdb00:
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case 0x1100:
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return true;
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default:
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break;
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}
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return false;
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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_vram **pvram)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct ttm_bo_device *bdev = &dev_priv->ttm.bdev;
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struct ttm_mem_type_manager *man = &bdev->man[TTM_PL_VRAM];
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struct nouveau_mm *mm = man->priv;
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struct nouveau_mm_node *r;
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struct nouveau_vram *vram;
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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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vram = kzalloc(sizeof(*vram), GFP_KERNEL);
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if (!vram)
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return -ENOMEM;
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INIT_LIST_HEAD(&vram->regions);
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vram->dev = dev_priv->dev;
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vram->memtype = type;
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vram->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, &vram);
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return ret;
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}
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list_add_tail(&r->rl_entry, &vram->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(&vram->regions, struct nouveau_mm_node, rl_entry);
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vram->offset = (u64)r->offset << 12;
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*pvram = vram;
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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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dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
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dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
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dev_priv->vram_rblock_size = 4096;
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return 0;
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}
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