From: Ben Skeggs Date: Tue, 1 Jun 2010 05:32:24 +0000 (+1000) Subject: drm/nouveau: use drm_mm in preference to custom code doing the same thing X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b833ac26f1f1c8e8d9149d83dbdd91432f2807d5;p=openwrt%2Fstaging%2Fblogic.git drm/nouveau: use drm_mm in preference to custom code doing the same thing Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index c69719106489..20c54884dcb7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -123,14 +123,6 @@ nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo) return ioptr; } -struct mem_block { - struct mem_block *next; - struct mem_block *prev; - uint64_t start; - uint64_t size; - struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */ -}; - enum nouveau_flags { NV_NFORCE = 0x10000000, NV_NFORCE2 = 0x20000000 @@ -149,7 +141,7 @@ struct nouveau_gpuobj { struct list_head list; struct nouveau_channel *im_channel; - struct mem_block *im_pramin; + struct drm_mm_node *im_pramin; struct nouveau_bo *im_backing; uint32_t im_backing_start; uint32_t *im_backing_suspend; @@ -206,7 +198,7 @@ struct nouveau_channel { /* Notifier memory */ struct nouveau_bo *notifier_bo; - struct mem_block *notifier_heap; + struct drm_mm notifier_heap; /* PFIFO context */ struct nouveau_gpuobj_ref *ramfc; @@ -224,7 +216,7 @@ struct nouveau_channel { /* Objects */ struct nouveau_gpuobj_ref *ramin; /* Private instmem */ - struct mem_block *ramin_heap; /* Private PRAMIN heap */ + struct drm_mm ramin_heap; /* Private PRAMIN heap */ struct nouveau_gpuobj_ref *ramht; /* Hash table */ struct list_head ramht_refs; /* Objects referenced by RAMHT */ @@ -595,7 +587,7 @@ struct drm_nouveau_private { struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR]; int vm_vram_pt_nr; - struct mem_block *ramin_heap; + struct drm_mm ramin_heap; /* context table pointed to be NV_PGRAPH_CHANNEL_CTX_TABLE (0x400780) */ uint32_t ctx_table_size; @@ -707,15 +699,7 @@ extern bool nouveau_wait_for_idle(struct drm_device *); extern int nouveau_card_init(struct drm_device *); /* nouveau_mem.c */ -extern int nouveau_mem_init_heap(struct mem_block **, uint64_t start, - uint64_t size); -extern struct mem_block *nouveau_mem_alloc_block(struct mem_block *, - uint64_t size, int align2, - struct drm_file *, int tail); -extern void nouveau_mem_takedown(struct mem_block **heap); -extern void nouveau_mem_free_block(struct mem_block *); extern int nouveau_mem_detect(struct drm_device *dev); -extern void nouveau_mem_release(struct drm_file *, struct mem_block *heap); extern int nouveau_mem_init(struct drm_device *); extern int nouveau_mem_init_agp(struct drm_device *); extern void nouveau_mem_close(struct drm_device *); diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index fb6b791506b2..4274281f45ce 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -35,162 +35,6 @@ #include "drm_sarea.h" #include "nouveau_drv.h" -static struct mem_block * -split_block(struct mem_block *p, uint64_t start, uint64_t size, - struct drm_file *file_priv) -{ - /* Maybe cut off the start of an existing block */ - if (start > p->start) { - struct mem_block *newblock = - kmalloc(sizeof(*newblock), GFP_KERNEL); - if (!newblock) - goto out; - newblock->start = start; - newblock->size = p->size - (start - p->start); - newblock->file_priv = NULL; - newblock->next = p->next; - newblock->prev = p; - p->next->prev = newblock; - p->next = newblock; - p->size -= newblock->size; - p = newblock; - } - - /* Maybe cut off the end of an existing block */ - if (size < p->size) { - struct mem_block *newblock = - kmalloc(sizeof(*newblock), GFP_KERNEL); - if (!newblock) - goto out; - newblock->start = start + size; - newblock->size = p->size - size; - newblock->file_priv = NULL; - newblock->next = p->next; - newblock->prev = p; - p->next->prev = newblock; - p->next = newblock; - p->size = size; - } - -out: - /* Our block is in the middle */ - p->file_priv = file_priv; - return p; -} - -struct mem_block * -nouveau_mem_alloc_block(struct mem_block *heap, uint64_t size, - int align2, struct drm_file *file_priv, int tail) -{ - struct mem_block *p; - uint64_t mask = (1 << align2) - 1; - - if (!heap) - return NULL; - - if (tail) { - list_for_each_prev(p, heap) { - uint64_t start = ((p->start + p->size) - size) & ~mask; - - if (p->file_priv == NULL && start >= p->start && - start + size <= p->start + p->size) - return split_block(p, start, size, file_priv); - } - } else { - list_for_each(p, heap) { - uint64_t start = (p->start + mask) & ~mask; - - if (p->file_priv == NULL && - start + size <= p->start + p->size) - return split_block(p, start, size, file_priv); - } - } - - return NULL; -} - -void nouveau_mem_free_block(struct mem_block *p) -{ - p->file_priv = NULL; - - /* Assumes a single contiguous range. Needs a special file_priv in - * 'heap' to stop it being subsumed. - */ - if (p->next->file_priv == NULL) { - struct mem_block *q = p->next; - p->size += q->size; - p->next = q->next; - p->next->prev = p; - kfree(q); - } - - if (p->prev->file_priv == NULL) { - struct mem_block *q = p->prev; - q->size += p->size; - q->next = p->next; - q->next->prev = q; - kfree(p); - } -} - -/* Initialize. How to check for an uninitialized heap? - */ -int nouveau_mem_init_heap(struct mem_block **heap, uint64_t start, - uint64_t size) -{ - struct mem_block *blocks = kmalloc(sizeof(*blocks), GFP_KERNEL); - - if (!blocks) - return -ENOMEM; - - *heap = kmalloc(sizeof(**heap), GFP_KERNEL); - if (!*heap) { - kfree(blocks); - return -ENOMEM; - } - - blocks->start = start; - blocks->size = size; - blocks->file_priv = NULL; - blocks->next = blocks->prev = *heap; - - memset(*heap, 0, sizeof(**heap)); - (*heap)->file_priv = (struct drm_file *) -1; - (*heap)->next = (*heap)->prev = blocks; - return 0; -} - -/* - * Free all blocks associated with the releasing file_priv - */ -void nouveau_mem_release(struct drm_file *file_priv, struct mem_block *heap) -{ - struct mem_block *p; - - if (!heap || !heap->next) - return; - - list_for_each(p, heap) { - if (p->file_priv == file_priv) - p->file_priv = NULL; - } - - /* Assumes a single contiguous range. Needs a special file_priv in - * 'heap' to stop it being subsumed. - */ - list_for_each(p, heap) { - while ((p->file_priv == NULL) && - (p->next->file_priv == NULL) && - (p->next != heap)) { - struct mem_block *q = p->next; - p->size += q->size; - p->next = q->next; - p->next->prev = p; - kfree(q); - } - } -} - /* * NV10-NV40 tiling helpers */ @@ -421,24 +265,8 @@ nv50_mem_vm_unbind(struct drm_device *dev, uint64_t virt, uint32_t size) /* * Cleanup everything */ -void nouveau_mem_takedown(struct mem_block **heap) -{ - struct mem_block *p; - - if (!*heap) - return; - - for (p = (*heap)->next; p != *heap;) { - struct mem_block *q = p; - p = p->next; - kfree(q); - } - - kfree(*heap); - *heap = NULL; -} - -void nouveau_mem_close(struct drm_device *dev) +void +nouveau_mem_close(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; diff --git a/drivers/gpu/drm/nouveau/nouveau_notifier.c b/drivers/gpu/drm/nouveau/nouveau_notifier.c index 9537f3e30115..32f7fbd7484d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_notifier.c +++ b/drivers/gpu/drm/nouveau/nouveau_notifier.c @@ -55,7 +55,7 @@ nouveau_notifier_init_channel(struct nouveau_channel *chan) if (ret) goto out_err; - ret = nouveau_mem_init_heap(&chan->notifier_heap, 0, ntfy->bo.mem.size); + ret = drm_mm_init(&chan->notifier_heap, 0, ntfy->bo.mem.size); if (ret) goto out_err; @@ -80,7 +80,7 @@ nouveau_notifier_takedown_channel(struct nouveau_channel *chan) nouveau_bo_unpin(chan->notifier_bo); mutex_unlock(&dev->struct_mutex); drm_gem_object_unreference_unlocked(chan->notifier_bo->gem); - nouveau_mem_takedown(&chan->notifier_heap); + drm_mm_takedown(&chan->notifier_heap); } static void @@ -90,7 +90,7 @@ nouveau_notifier_gpuobj_dtor(struct drm_device *dev, NV_DEBUG(dev, "\n"); if (gpuobj->priv) - nouveau_mem_free_block(gpuobj->priv); + drm_mm_put_block(gpuobj->priv); } int @@ -100,18 +100,13 @@ nouveau_notifier_alloc(struct nouveau_channel *chan, uint32_t handle, struct drm_device *dev = chan->dev; struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_gpuobj *nobj = NULL; - struct mem_block *mem; + struct drm_mm_node *mem; uint32_t offset; int target, ret; - if (!chan->notifier_heap) { - NV_ERROR(dev, "Channel %d doesn't have a notifier heap!\n", - chan->id); - return -EINVAL; - } - - mem = nouveau_mem_alloc_block(chan->notifier_heap, size, 0, - (struct drm_file *)-2, 0); + mem = drm_mm_search_free(&chan->notifier_heap, size, 0, 0); + if (mem) + mem = drm_mm_get_block(mem, size, 0); if (!mem) { NV_ERROR(dev, "Channel %d notifier block full\n", chan->id); return -ENOMEM; @@ -144,17 +139,17 @@ nouveau_notifier_alloc(struct nouveau_channel *chan, uint32_t handle, mem->size, NV_DMA_ACCESS_RW, target, &nobj); if (ret) { - nouveau_mem_free_block(mem); + drm_mm_put_block(mem); NV_ERROR(dev, "Error creating notifier ctxdma: %d\n", ret); return ret; } - nobj->dtor = nouveau_notifier_gpuobj_dtor; - nobj->priv = mem; + nobj->dtor = nouveau_notifier_gpuobj_dtor; + nobj->priv = mem; ret = nouveau_gpuobj_ref_add(dev, chan, handle, nobj, NULL); if (ret) { nouveau_gpuobj_del(dev, &nobj); - nouveau_mem_free_block(mem); + drm_mm_put_block(mem); NV_ERROR(dev, "Error referencing notifier ctxdma: %d\n", ret); return ret; } @@ -170,7 +165,7 @@ nouveau_notifier_offset(struct nouveau_gpuobj *nobj, uint32_t *poffset) return -EINVAL; if (poffset) { - struct mem_block *mem = nobj->priv; + struct drm_mm_node *mem = nobj->priv; if (*poffset >= mem->size) return false; diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c index e7c100ba63a1..d436c3c7f4f5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_object.c +++ b/drivers/gpu/drm/nouveau/nouveau_object.c @@ -209,7 +209,7 @@ nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan, struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_engine *engine = &dev_priv->engine; struct nouveau_gpuobj *gpuobj; - struct mem_block *pramin = NULL; + struct drm_mm *pramin = NULL; int ret; NV_DEBUG(dev, "ch%d size=%u align=%d flags=0x%08x\n", @@ -233,17 +233,17 @@ nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan, * available. */ if (chan) { - if (chan->ramin_heap) { + if (chan->ramin_heap.ml_entry.next) { NV_DEBUG(dev, "private heap\n"); - pramin = chan->ramin_heap; + pramin = &chan->ramin_heap; } else if (dev_priv->card_type < NV_50) { NV_DEBUG(dev, "global heap fallback\n"); - pramin = dev_priv->ramin_heap; + pramin = &dev_priv->ramin_heap; } } else { NV_DEBUG(dev, "global heap\n"); - pramin = dev_priv->ramin_heap; + pramin = &dev_priv->ramin_heap; } if (!pramin) { @@ -260,9 +260,10 @@ nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan, } /* Allocate a chunk of the PRAMIN aperture */ - gpuobj->im_pramin = nouveau_mem_alloc_block(pramin, size, - drm_order(align), - (struct drm_file *)-2, 0); + gpuobj->im_pramin = drm_mm_search_free(pramin, size, align, 0); + if (gpuobj->im_pramin) + gpuobj->im_pramin = drm_mm_get_block(gpuobj->im_pramin, size, align); + if (!gpuobj->im_pramin) { nouveau_gpuobj_del(dev, &gpuobj); return -ENOMEM; @@ -386,7 +387,7 @@ nouveau_gpuobj_del(struct drm_device *dev, struct nouveau_gpuobj **pgpuobj) if (gpuobj->flags & NVOBJ_FLAG_FAKE) kfree(gpuobj->im_pramin); else - nouveau_mem_free_block(gpuobj->im_pramin); + drm_mm_put_block(gpuobj->im_pramin); } list_del(&gpuobj->list); @@ -589,7 +590,7 @@ nouveau_gpuobj_new_fake(struct drm_device *dev, uint32_t p_offset, list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list); if (p_offset != ~0) { - gpuobj->im_pramin = kzalloc(sizeof(struct mem_block), + gpuobj->im_pramin = kzalloc(sizeof(struct drm_mm_node), GFP_KERNEL); if (!gpuobj->im_pramin) { nouveau_gpuobj_del(dev, &gpuobj); @@ -944,8 +945,7 @@ nouveau_gpuobj_channel_init_pramin(struct nouveau_channel *chan) } pramin = chan->ramin->gpuobj; - ret = nouveau_mem_init_heap(&chan->ramin_heap, - pramin->im_pramin->start + base, size); + ret = drm_mm_init(&chan->ramin_heap, pramin->im_pramin->start + base, size); if (ret) { NV_ERROR(dev, "Error creating PRAMIN heap: %d\n", ret); nouveau_gpuobj_ref_del(dev, &chan->ramin); @@ -1130,8 +1130,8 @@ nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan) for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) nouveau_gpuobj_ref_del(dev, &chan->vm_vram_pt[i]); - if (chan->ramin_heap) - nouveau_mem_takedown(&chan->ramin_heap); + if (chan->ramin_heap.free_stack.next) + drm_mm_takedown(&chan->ramin_heap); if (chan->ramin) nouveau_gpuobj_ref_del(dev, &chan->ramin); diff --git a/drivers/gpu/drm/nouveau/nv04_instmem.c b/drivers/gpu/drm/nouveau/nv04_instmem.c index a3b9563a6f60..17af702d6ddc 100644 --- a/drivers/gpu/drm/nouveau/nv04_instmem.c +++ b/drivers/gpu/drm/nouveau/nv04_instmem.c @@ -106,7 +106,7 @@ int nv04_instmem_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; uint32_t offset; - int ret = 0; + int ret; nv04_instmem_determine_amount(dev); nv04_instmem_configure_fixed_tables(dev); @@ -129,14 +129,14 @@ int nv04_instmem_init(struct drm_device *dev) offset = 0x40000; } - ret = nouveau_mem_init_heap(&dev_priv->ramin_heap, - offset, dev_priv->ramin_rsvd_vram - offset); + ret = drm_mm_init(&dev_priv->ramin_heap, offset, + dev_priv->ramin_rsvd_vram - offset); if (ret) { - dev_priv->ramin_heap = NULL; - NV_ERROR(dev, "Failed to init RAMIN heap\n"); + NV_ERROR(dev, "Failed to init RAMIN heap: %d\n", ret); + return ret; } - return ret; + return 0; } void diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 580a5d10be93..515edde2c59f 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -110,8 +110,8 @@ nv50_evo_channel_new(struct drm_device *dev, struct nouveau_channel **pchan) return ret; } - ret = nouveau_mem_init_heap(&chan->ramin_heap, chan->ramin->gpuobj-> - im_pramin->start, 32768); + ret = drm_mm_init(&chan->ramin_heap, + chan->ramin->gpuobj->im_pramin->start, 32768); if (ret) { NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret); nv50_evo_channel_del(pchan); diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c index 71c01b6e5731..a361d1612bd7 100644 --- a/drivers/gpu/drm/nouveau/nv50_instmem.c +++ b/drivers/gpu/drm/nouveau/nv50_instmem.c @@ -147,7 +147,7 @@ nv50_instmem_init(struct drm_device *dev) if (ret) return ret; - if (nouveau_mem_init_heap(&chan->ramin_heap, c_base, c_size - c_base)) + if (drm_mm_init(&chan->ramin_heap, c_base, c_size - c_base)) return -ENOMEM; /* RAMFC + zero channel's PRAMIN up to start of VM pagedir */ @@ -276,9 +276,7 @@ nv50_instmem_init(struct drm_device *dev) nv_wr32(dev, NV50_PUNK_BAR0_PRAMIN, save_nv001700); /* Global PRAMIN heap */ - if (nouveau_mem_init_heap(&dev_priv->ramin_heap, - c_size, dev_priv->ramin_size - c_size)) { - dev_priv->ramin_heap = NULL; + if (drm_mm_init(&dev_priv->ramin_heap, c_size, dev_priv->ramin_size - c_size)) { NV_ERROR(dev, "Failed to init RAMIN heap\n"); } @@ -321,7 +319,7 @@ nv50_instmem_takedown(struct drm_device *dev) nouveau_gpuobj_del(dev, &chan->vm_pd); nouveau_gpuobj_ref_del(dev, &chan->ramfc); nouveau_gpuobj_ref_del(dev, &chan->ramin); - nouveau_mem_takedown(&chan->ramin_heap); + drm_mm_takedown(&chan->ramin_heap); dev_priv->fifos[0] = dev_priv->fifos[127] = NULL; kfree(chan); @@ -436,14 +434,14 @@ nv50_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj) if (!gpuobj->im_backing || !gpuobj->im_pramin || gpuobj->im_bound) return -EINVAL; - NV_DEBUG(dev, "st=0x%0llx sz=0x%0llx\n", + NV_DEBUG(dev, "st=0x%lx sz=0x%lx\n", gpuobj->im_pramin->start, gpuobj->im_pramin->size); pte = (gpuobj->im_pramin->start >> 12) << 1; pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte; vram = gpuobj->im_backing_start; - NV_DEBUG(dev, "pramin=0x%llx, pte=%d, pte_end=%d\n", + NV_DEBUG(dev, "pramin=0x%lx, pte=%d, pte_end=%d\n", gpuobj->im_pramin->start, pte, pte_end); NV_DEBUG(dev, "first vram page: 0x%08x\n", gpuobj->im_backing_start);