diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-16 21:02:15 +0000 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-16 21:02:15 +0000 |
commit | d8c58fabd75021cdd99abcd96513cb088d41092b (patch) | |
tree | f6554ecfb27c0d50f5ae6acae3a7077282813cab /drivers/gpu/drm/nouveau/nvc0_instmem.c | |
parent | 9c04f015ebc2cc2cca5a4a576deb82a311578edc (diff) | |
parent | b08ebe7e776e5be0271ed1e1bbb384e1f29dd117 (diff) |
Merge remote branch 'airlied/drm-core-next' into drm-intel-next
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_instmem.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_instmem.c | 121 |
1 files changed, 74 insertions, 47 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_instmem.c b/drivers/gpu/drm/nouveau/nvc0_instmem.c index 13a0f78a908..39232085193 100644 --- a/drivers/gpu/drm/nouveau/nvc0_instmem.c +++ b/drivers/gpu/drm/nouveau/nvc0_instmem.c @@ -26,67 +26,89 @@ #include "nouveau_drv.h" +struct nvc0_gpuobj_node { + struct nouveau_bo *vram; + struct drm_mm_node *ramin; + u32 align; +}; + int -nvc0_instmem_populate(struct drm_device *dev, struct nouveau_gpuobj *gpuobj, - uint32_t *size) +nvc0_instmem_get(struct nouveau_gpuobj *gpuobj, u32 size, u32 align) { + struct drm_device *dev = gpuobj->dev; + struct nvc0_gpuobj_node *node = NULL; int ret; - *size = ALIGN(*size, 4096); - if (*size == 0) - return -EINVAL; + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (!node) + return -ENOMEM; + node->align = align; - ret = nouveau_bo_new(dev, NULL, *size, 0, TTM_PL_FLAG_VRAM, 0, 0x0000, - true, false, &gpuobj->im_backing); + ret = nouveau_bo_new(dev, NULL, size, align, TTM_PL_FLAG_VRAM, + 0, 0x0000, true, false, &node->vram); if (ret) { NV_ERROR(dev, "error getting PRAMIN backing pages: %d\n", ret); return ret; } - ret = nouveau_bo_pin(gpuobj->im_backing, TTM_PL_FLAG_VRAM); + ret = nouveau_bo_pin(node->vram, TTM_PL_FLAG_VRAM); if (ret) { NV_ERROR(dev, "error pinning PRAMIN backing VRAM: %d\n", ret); - nouveau_bo_ref(NULL, &gpuobj->im_backing); + nouveau_bo_ref(NULL, &node->vram); return ret; } - gpuobj->vinst = gpuobj->im_backing->bo.mem.start << PAGE_SHIFT; + gpuobj->vinst = node->vram->bo.mem.start << PAGE_SHIFT; + gpuobj->size = node->vram->bo.mem.num_pages << PAGE_SHIFT; + gpuobj->node = node; return 0; } void -nvc0_instmem_clear(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) +nvc0_instmem_put(struct nouveau_gpuobj *gpuobj) { - struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nvc0_gpuobj_node *node; - if (gpuobj && gpuobj->im_backing) { - if (gpuobj->im_bound) - dev_priv->engine.instmem.unbind(dev, gpuobj); - nouveau_bo_unpin(gpuobj->im_backing); - nouveau_bo_ref(NULL, &gpuobj->im_backing); - gpuobj->im_backing = NULL; - } + node = gpuobj->node; + gpuobj->node = NULL; + + nouveau_bo_unpin(node->vram); + nouveau_bo_ref(NULL, &node->vram); + kfree(node); } int -nvc0_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) +nvc0_instmem_map(struct nouveau_gpuobj *gpuobj) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t pte, pte_end; - uint64_t vram; - - if (!gpuobj->im_backing || !gpuobj->im_pramin || gpuobj->im_bound) - return -EINVAL; - - NV_DEBUG(dev, "st=0x%lx sz=0x%lx\n", - gpuobj->im_pramin->start, gpuobj->im_pramin->size); - - pte = gpuobj->im_pramin->start >> 12; - pte_end = (gpuobj->im_pramin->size >> 12) + pte; + struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private; + struct nvc0_gpuobj_node *node = gpuobj->node; + struct drm_device *dev = gpuobj->dev; + struct drm_mm_node *ramin = NULL; + u32 pte, pte_end; + u64 vram; + + do { + if (drm_mm_pre_get(&dev_priv->ramin_heap)) + return -ENOMEM; + + spin_lock(&dev_priv->ramin_lock); + ramin = drm_mm_search_free(&dev_priv->ramin_heap, gpuobj->size, + node->align, 0); + if (ramin == NULL) { + spin_unlock(&dev_priv->ramin_lock); + return -ENOMEM; + } + + ramin = drm_mm_get_block_atomic(ramin, gpuobj->size, node->align); + spin_unlock(&dev_priv->ramin_lock); + } while (ramin == NULL); + + pte = (ramin->start >> 12) << 1; + pte_end = ((ramin->size >> 12) << 1) + pte; vram = gpuobj->vinst; NV_DEBUG(dev, "pramin=0x%lx, pte=%d, pte_end=%d\n", - gpuobj->im_pramin->start, pte, pte_end); + ramin->start, pte, pte_end); NV_DEBUG(dev, "first vram page: 0x%010llx\n", gpuobj->vinst); while (pte < pte_end) { @@ -103,30 +125,35 @@ nvc0_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) nv_wr32(dev, 0x100cbc, 0x80000005); } - gpuobj->im_bound = 1; + node->ramin = ramin; + gpuobj->pinst = ramin->start; return 0; } -int -nvc0_instmem_unbind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) +void +nvc0_instmem_unmap(struct nouveau_gpuobj *gpuobj) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t pte, pte_end; + struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private; + struct nvc0_gpuobj_node *node = gpuobj->node; + u32 pte, pte_end; - if (gpuobj->im_bound == 0) - return -EINVAL; + if (!node->ramin || !dev_priv->ramin_available) + return; + + pte = (node->ramin->start >> 12) << 1; + pte_end = ((node->ramin->size >> 12) << 1) + pte; - pte = gpuobj->im_pramin->start >> 12; - pte_end = (gpuobj->im_pramin->size >> 12) + pte; while (pte < pte_end) { - nv_wr32(dev, 0x702000 + (pte * 8), 0); - nv_wr32(dev, 0x702004 + (pte * 8), 0); + nv_wr32(gpuobj->dev, 0x702000 + (pte * 8), 0); + nv_wr32(gpuobj->dev, 0x702004 + (pte * 8), 0); pte++; } - dev_priv->engine.instmem.flush(dev); + dev_priv->engine.instmem.flush(gpuobj->dev); - gpuobj->im_bound = 0; - return 0; + spin_lock(&dev_priv->ramin_lock); + drm_mm_put_block(node->ramin); + node->ramin = NULL; + spin_unlock(&dev_priv->ramin_lock); } void |